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Journal articles on the topic 'NMC811'

Author: Grafiati
Published: 4 June 2021
Last updated: 27 July 2025

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1

Hawley, W. Blake, Mengya Li, and Jianlin Li. "Room-Temperature Eutectic Synthesis for Upcycling of Cathode Materials." Batteries 9, no. 10 (2023): 498. http://dx.doi.org/10.3390/batteries9100498.

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Ni-rich LiNixMnyCo1−x−yO2 (NMC) materials have been adopted in a range of applications, including electric vehicles. The recycled NMC material from a spent cell would be much more valuable if it could be upgraded to a Ni-rich, more energy-dense version of the material. This work demonstrates a simple, inexpensive, and facile method to upcycle LiNi1/3Mn1/3Co1/3O2 (NMC111, 160 mAh∙g−1), a cathode used in early generations of electric vehicle batteries, to LiNi0.8Mn0.1Co0.1O2 (NMC811, 190 mAh∙g−1), a more energy-dense cathode material. In this study, a preliminary investigation into a room-temper
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2

Haq, Ijaz Ul, and Seungjun Lee. "Molecular Dynamics Study of the Ni Content-Dependent Mechanical Properties of NMC Cathode Materials." Crystals 15, no. 3 (2025): 272. https://doi.org/10.3390/cryst15030272.

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Lithium nickel manganese cobalt oxides (NMCs) are widely used as cathode materials in commercial batteries. Efforts have been made to enhance battery energy density and stability by adjusting the element ratio. Nickel-rich NMC shows promise due to its high capacity; however, its commercial viability is hindered by severe capacity fade, primarily caused by poor mechanical stability. To address this, understanding the chemo-mechanical behavior of Ni-rich NMC is crucial. The mechanical failure of Ni-rich NMC materials during battery operation has been widely studied through theoretical approaches
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3

Wang, Chongming, Tazdin Amietszajew, Ruth Carvajal, et al. "Cold Ageing of NMC811 Lithium-ion Batteries." Energies 14, no. 16 (2021): 4724. http://dx.doi.org/10.3390/en14164724.

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In the application of electric vehicles, LiNi0.8Mn0.1Co0.1O2 (NMC811)-a Ni-rich cathode has the potential of replacing LiNiMnCoO2 (NMC111) due to its high energy density. However, NMC811 features relatively poor structural and thermal stabilities, which affect its cycle life. This study aims to address the limited data availability research gap on NMC811 low-temperature degradation. We aged commercial 21700 NMC811 cells at 0 °C under 0.5 C and 1 C current rates. After 200 cycles, post-mortem visual, scanning electron microscopy (SEM) and energy-dispersive X-ray (EDX) spectroscopy, the inspecti
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4

Matts, Ian L., Andrei Klementov, Scott Sisco, Kuldeep Kumar, and Se Ryeon Lee. "Improving High-Nickel Cathode Active Material Performance in Lithium-Ion Batteries with Functionalized Binder Chemistry." ECS Meeting Abstracts MA2022-01, no. 2 (2022): 362. http://dx.doi.org/10.1149/ma2022-012362mtgabs.

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As the lithium-ion battery (LIB) market expands, driven mostly by the mass adoption of electric vehicles, LIB development is continually being pushed in the direction of higher energy density and lower cost. Both of these trends are leading to widespread development of LIB formulations using high-nickel cathode active materials, such as NMC811. In these materials, the high nickel content increases the amount of electrochemically accessible lithium in the cathode, increasing the cell energy density, while decreasing the amount of cobalt used, which decreases the cost of the cathode material. Ho
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5

Nanthamitr, Puttida, Chanikarn Tomon, and Montree Sawangphruk. "Reducing Intrinsic Drawbacks of Ni-Rich NMC811 Cathode By Blending with LMO Cathode in 18650 Lithium-Ion Batteries." ECS Meeting Abstracts MA2022-01, no. 2 (2022): 277. http://dx.doi.org/10.1149/ma2022-012277mtgabs.

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The commercial NMC811 cathode can provide high specific capacity and energy density but it has poor capacity retention leading short cycle life and severe safety hazards because their instability of layer structure. Whist, spinel LMO cathode has high stability with great capacity retention but low specific capacity and energy density. In this work, blended NMC811/LMO cathode in the ratio of 2:1 can increase the capacity around 69% when compared with pristine LMO. Moreover, the blended NMC811/LMO in the ration of 2:1 can provide the high-capacity retention more than 80% in 450 cycles that highe
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6

Tran, Minh Xuan, Peter Smyrek, Jihun Park, Wilhelm Pfleging, and Joong Kee Lee. "Ultrafast-Laser Micro-Structuring of LiNi0.8Mn0.1Co0.1O2 Cathode for High-Rate Capability of Three-Dimensional Li-ion Batteries." Nanomaterials 12, no. 21 (2022): 3897. http://dx.doi.org/10.3390/nano12213897.

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Femtosecond ultrafast-laser micro-patterning was employed to prepare a three-dimensional (3D) structure for the tape-casting Ni-rich LiNi0.8Mn0.1Co0.1O2 (NMC811) cathode. The influences of laser structuring on the electrochemical performance of NMC811 were investigated. The 3D-NMC811 cathode retained capacities of 77.8% at 2 C of initial capacity at 0.1 C, which was thrice that of 2D-NMC811 with an initial capacity of 27.8%. Cyclic voltammetry (CV) and impedance spectroscopy demonstrated that the 3D electrode improved the Li+ ion transportation at the electrode–electrolyte interface, resulting
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7

Sun, Xiao-Guang, Charl J. Jafta, Susheng Tan, Albina Borisevich, Ram B. Gupta, and Mariappan Parans Paranthaman. "Facile Surface Coatings for Performance Improvement of NMC811 Battery Cathode Material." Journal of The Electrochemical Society 169, no. 2 (2022): 020565. http://dx.doi.org/10.1149/1945-7111/ac5302.

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High nickel content layered oxide LiNi0.8Mn0.1Co0.1O2 (NMC811) is a promising cathode material with a high theoretical capacity of 200 mAh g−1 for use in high energy density lithium-ion batteries. However, its surface can easily get passivated by LiOH and Li2CO3 due to its surface residual Li2O being reacting with ambient moisture and CO2. Herein, NMC811 was treated in a 3.0 M solution of lithium bis(fluorosulfonyl)imide (LiFSI) in dimethyl carbonate (DMC) at 60 °C for 8 h, 16 h and 24 h, respectively, resulting in coating of the NMC811 surface with LiF due to the basic nature of those residua
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8

Angellinnov, Fiona, Achmad Subhan, Tribidasari Anggraningrum Ivandini, et al. "Characteristics of NMC811 after Surface Modification Using Rice Husk Derived Silica Coating." Solid State Phenomena 369 (March 6, 2025): 101–6. https://doi.org/10.4028/p-eal2v2.

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High nickel content in nickel manganese cobalt (NMC811, LiNi0.8Mn0.1Co0.1O2) resulted in high capacity but low structural stability. Surface modification of NMC811 via silica (SiO2) coating is known to counter this problem, leading to better electrochemical performance. In this work, silica was synthesized from rice husk through sol-gel method with alkaline extraction followed by acidification process. The resulting silica was coated onto commercially available NMC811 to modify its surface via solid-state reaction method. The characterization results showed that the silica coated NMC811 demons
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9

Bi, Yujing, Qiuyan Li, Ran Yi, and Jie Xiao. "To Pave the Way for Large-Scale Electrode Processing of Moisture-Sensitive Ni-Rich Cathodes." Journal of The Electrochemical Society 169, no. 2 (2022): 020521. http://dx.doi.org/10.1149/1945-7111/ac4e5d.

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High-capacity Ni-rich cathode such as LiNi0.8Mn0.1Co0.1O2 (NMC811) has a great potential to enable high energy lithium-ion batteries (LIBs) for long-range electrical vehicles. However, the utilization of NMC 811 in large-scale application is still challenging. While many published papers on NMC811 focus on materials modification, the moisture sensitivity of NMC811 and its implications in storage and large-scale electrode coating are not well explored, not to mention how to overcome those challenges for industry application. This work discusses the key parameters impacting the rheological prope
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10

Temprano, Israel, Wesley M. Dose, Michael F. L. De Volder, and Clare P. Grey. "Solvent-Driven Degradation of Ni-Rich Cathodes Probed by Operando Gas Analysis." ECS Meeting Abstracts MA2023-02, no. 2 (2023): 348. http://dx.doi.org/10.1149/ma2023-022348mtgabs.

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High-capacity Ni-rich layered metal oxide cathodes are highly desirable to increase the energy density of lithium-ion batteries. However, these materials suffer from poor cycling stability, which is exacerbated by increased cell voltage due to higher interfacial reactivity than their lower Ni-content analogues. Here, we study the pivotal role of electrolyte solvents in determining the interfacial reactivity at charged LiNi0.33Mn0.33Co0.33O2 (NMC111) and LiNi0.8Mn0.1Co0.1O2 (NMC811) cathodes by using both single-solvent model electrolytes and the mixed solvents used in commercial cells (1, 2).
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11

Oikawa, Mutsuki, Jun Ikegami, Yuma Shimbori, et al. "The Electrochemical Performance of The Blended Cathode of LMFP and NMC811." ECS Meeting Abstracts MA2024-02, no. 5 (2024): 649. https://doi.org/10.1149/ma2024-025649mtgabs.

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Blended cathodes are one of new approach for enhancing both characteristics of different cathode active materials. In previous study, a blended cathode between olivine structural cathode active materials and layered lock salt cathode active materials are applied to lithium ion cell to realize high thermal stability derived from olivine and large capacity derived from layered rock salt type. The blended cathode between lithium iron phosphate (LFP: LiFePO4) and lithium nickel cobalt manganese oxide (NMC1-x-y, x, y: LiNi1-x-yMnxCoyO2) shows a high stability of crystal structure and large specific
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12

Zheng, Xueli, Yukio Cho, Guang Yang, and Jagjit Nanda. "Revealing Morphological and Chemical Changes of Nickel-Rich Oxide Cathodes in Sulfide-Based All-Solid-State Batteries." ECS Meeting Abstracts MA2024-02, no. 8 (2024): 1070. https://doi.org/10.1149/ma2024-0281070mtgabs.

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Solid-state batteries have emerged as a transformative technology with the potential to revolutionize energy storage systems. Unlike conventional lithium-ion batteries, which rely on liquid electrolytes, solid-state batteries utilize solid electrolytes, offering numerous advantages including enhanced safety, higher energy density, and wider operating temperature ranges. Particularly, sulfide solid electrolytes represent a significant component of solid-state batteries due to their high ionic conductivity. However, key challenges in sulfide solid electrolytes including issues related to interfa
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13

Angellinnov, Fiona, Achmad Subhan, Bambang Priyono, and Anne Zulfia Syahrial. "Optimization of NMC811 Synthesis via Oxalate Coprecipitation Method for Lithium-Ion Battery Cathode." Metalurgi 39, no. 2 (2025): 79. https://doi.org/10.55981/metalurgi.2024.759.

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NMC811 was synthesized through the oxalate coprecipitation method, followed by the solid-state method of lithiation. Stirring speed (500, 750, 1000 rpm), aging time (0, 3, 5h), sintering atmosphere (with and without oxygen flow), sintering temperature (700, 750, 800 °C), and lithium concentration (0, 2, 5% excess) effect on the NMC811 were examined. Characterization results showed that the optimum stirring speed and aging time are 750 rpm and 3 hours. Based on structural analysis, the best condition for sintering is in oxygen atmospheres at 800 °C with a lithium concentration of 2% excess. NMC
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14

de Meatza, Iratxe, Imanol Landa-Medrano, Susan Sananes-Israel, et al. "Influence of the Ambient Storage of LiNi0.8Mn0.1Co0.1O2 Powder and Electrodes on the Electrochemical Performance in Li-ion Technology." Batteries 8, no. 8 (2022): 79. http://dx.doi.org/10.3390/batteries8080079.

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Nickel-rich LiNi0.8Mn0.1Co0.1O2 (NMC811) is one of the most promising Li-ion battery cathode materials and has attracted the interest of the automotive industry. Nevertheless, storage conditions can affect its properties and performance. In this work, both NMC811 powder and electrodes were storage-aged for one year under room conditions. The aged powder was used to prepare electrodes, and the performance of these two aged samples was compared with reference fresh NMC811 electrodes in full Li-ion coin cells using graphite as a negative electrode. The cells were subjected to electrochemical as w
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15

Velasquez, Kevin, Xin Wang, and Xiangbo Meng. "Effects of Cathode Loadings on the Performance of the LiNi0.8Mn0.1Co0.1O2 Cathode in Lithium Batteries." ECS Meeting Abstracts MA2023-01, no. 2 (2023): 600. http://dx.doi.org/10.1149/ma2023-012600mtgabs.

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LiNixMnyCozO2 (NMCs, x + y + z = 1) represent one promising cathode material for next-generation lithium-ion batteries (LIBs) and beyond, due to their high specific capacity and low cost.1-3 The current commercialized batteries tend to utilize high loadings of cathode materials and thin Li anodes for producing higher energy densities. However, a systematic study on the effects of cathode loadings is missing. To this end, we recently conducted a comparative study on the effects of different cathode loadings on the performance of LiNi0.8Mn0.1Co0.1O2 (NMC811). The NMC811 loading ranges from 2 – 1
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16

Jung, Roland, Michael Metzger, Filippo Maglia, Christoph Stinner, and Hubert A. Gasteiger. "Chemical versus Electrochemical Electrolyte Oxidation on NMC111, NMC622, NMC811, LNMO, and Conductive Carbon." Journal of Physical Chemistry Letters 8, no. 19 (2017): 4820–25. http://dx.doi.org/10.1021/acs.jpclett.7b01927.

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17

Yamamoto, Rinka, Daisuke Shibata, Akinori Irizawa, et al. "X-Ray CT and XAS Analysis of NMC811 Cycled at Various Rates." ECS Meeting Abstracts MA2024-02, no. 4 (2024): 485. https://doi.org/10.1149/ma2024-024485mtgabs.

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LiNi0.8Mn0.1Co0.1O2 (NMC811) is attracting attention as high capacity cathode materials for lithium-ion batteries, which potentially increases specific capacity and reduces cost by replacing the rare metal cobalt with nickel. However, NMC811 has an issue with cycle capability compared to the conventionally used LiCoO2 (LCO). Various factors contribute the degradation of NMC811. Although the crystal structure evolution, such as cation mixing and oxygen loss1, surface reconstruction2 and intraparticle crack formation induced by charge-discharge cycles were proposed3, previous studies tend to foc
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18

Kunanusont, Nattanai, Thanathon Sesuk, Priew Eiamlamai, Sunisa Buakeaw, Phontip Tammawat, and Pimpa Limthongkul. "Degradation Diagnostics of Ni-Rich NMC in Lithium-Ion Batteries Aged in Different Degrading Conditions." ECS Meeting Abstracts MA2023-02, no. 3 (2023): 451. http://dx.doi.org/10.1149/ma2023-023451mtgabs.

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Ni-rich Nickel Manganese Cobalt Oxides (NMC) such as LiNi0.6Mn0.2Co0.2O2 (NMC622) and LiNi0.8Mn0.1Co0.1O2 (NMC811) have been widely used as the cathode active materials in lithium-ion batteries (LIB) of electric vehicles due to their high capacity. Thus, we can foresee millions of tons of end-of-life LIB will be accumulated by the next decades. This means that the efficient recycling method of batteries material, especially NMC which has the highest value, should be developed to reduce the cost and increase the efficiency of recycling. Direct recycling which is a novel method to recover cathod
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19

Widiyandari, Hendri, Rizqia Afifatu Latifah, Arif Jumari, Cornelius Satria Yudha, and Shofirul Sholikhatun Nisa. "Sintesis Material Katoda LiNi0,8Mn0,1Co0,1O2 (NMC811) dengan Metode Solid State Menggunakan Nikel Hasil Perolehan Kembali dari Spent Nickel Catalyst." ALCHEMY Jurnal Penelitian Kimia 18, no. 2 (2022): 214. http://dx.doi.org/10.20961/alchemy.18.2.63035.214-220.

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<p>Penelitian mengenai sintesis material katoda LiNi<sub>0,8</sub>Mn<sub>0,1</sub>Co<sub>0,1</sub>O<sub>2</sub> (NMC811) menggunakan nikel hasil perolehan kembali dari<em> </em><em>spent nickel catalyst</em> telah berhasil dilakukan menggunakan metode <em>solid</em><em> state </em>dengan variasi perbandingan padatan <em>spent nickel catalyst</em>/larutan (padatan/larutan) yang digunakan untuk <em>leaching spent nickel catalyst</em> sebesar (20 g/L, 30 g/L, dan 40 g/L)&l
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20

Nel·lo, Pascual Marc, Moreno Elías Martínez, Jøsang Leif Olaf, Maximiliano Merlo, and Biendicho Jordi Jacas. "Revealing the impact of CO2 exposure during calcination on the physicochemical and electrochemical properties of LiNi0.8Co0.1Mn0.1O2." Nanoscale 16 (November 14, 2024): 22326–36. https://doi.org/10.1039/D4NR04146A.

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The synthesis atmosphere plays a fundamental role in determining the physicochemical properties and electrochemical performance of NMC811 cathode materials used in lithium-ion batteries. This study investigates the effect of carbonate impurities generated during synthesis by comparing three distinct samples: NMC811 calcined in ambient air, NMC811 calcined in synthetic air to mitigate carbonate formation, and NMC811 initially calcined in ambient air followed by annealing in synthetic air to eliminate carbonate species. Physicochemical characterization through XRD, SEM, FTIR, and TGA techniques
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21

Xiao, Jie. "(Invited) Single Crystal Ni-Rich Cathode Materials: Synthesis, Scaleup and Validation." ECS Meeting Abstracts MA2024-01, no. 4 (2024): 638. http://dx.doi.org/10.1149/ma2024-014638mtgabs.

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Synthesis of high-performance single crystal Ni-rich NMC, especially when Ni≥0.8, poses a challenge. A conflict exists because as Ni content increase in NMC811, a lower calcination temperature is preferred due to Ni reduction at elevated temperatures, while high temperatures favour single crystal growth.Therefore, molten salt is sometimes employed as the reaction media to promote growth of single crystal NMC811. In general, four approaches for synthesizing of Ni-rich NMC single crystals: molten salt, hydrothermal, direct solid-state synthesis and multi-step lithiation. Molten salt and hydrothe
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22

Fan, Juntian, and Sheng Dai. "Alkali-Catalyzed Coating of Covalent Triazine Frameworks for Enhanced Interfacial Stability of High-Nickel Ternary Cathode Materials." ECS Meeting Abstracts MA2024-02, no. 7 (2024): 897. https://doi.org/10.1149/ma2024-027897mtgabs.

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Covalent triazine frameworks (CTFs) exhibit exceptional electron/ion conductivity and superior chemical and thermal stability, making them promising coating materials for enhancing the interfacial stability of cathode materials such as LiNixMnyCozO2 (NMC). However, the synthesis of CTFs via nitrile trimerization typically requires superacids (e.g., CF3SO3H) or Lewis acids (e.g., ZnCl2) as catalysts, which can react with metal oxides, posing challenges for the in-situ coating of CTFs on NMC. Herein, this issue has been addressed by achieving in situ CTF coating on LiNi0.1Mn0.1Co0.1O2 (NMC811) u
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23

Alqahtani, Yahya M., and Quinton L. Williams. "Reduction of Capacity Fading in High-Voltage NMC Batteries with the Addition of Reduced Graphene Oxide." Materials 15, no. 6 (2022): 2146. http://dx.doi.org/10.3390/ma15062146.

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Lithium-ion batteries for electric vehicles (EV) require high energy capacity, reduced weight, extended lifetime and low cost. EV manufacturers are focused on Ni-rich layered oxides because of their promising attributes, which include the ability to operate at a relatively high voltage. However, these cathodes, usually made with nickel–manganese–cobalt (NMC811), typically experience accelerated capacity fading when operating at a high voltage. In this research, reduced graphene oxide (rGO) is added to a NMC811 cathode material to improve the performance in cyclability studies. Batteries made w
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24

Wu, Xianyang, Xinlin Li, Khalil Amine, et al. "Ethereal Based Electrolytes for Ultrastable LiNi0.8Mn0.1Co0.1O2 (NMC811)||Si Full Cells." ECS Meeting Abstracts MA2024-02, no. 7 (2024): 991. https://doi.org/10.1149/ma2024-027991mtgabs.

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With its impressive specific capacity of 3579 mAh/g (when alloyed into Li15Si4 at room temperature), Silicon (Si) anode is widely regarded as an ideal alternative to graphite anodes. However, its commercial viability is still hampered by rapid capacity degradation. Liquid electrolytes based on ethereal solvents such as dimethoxyethane (DME) and diglyme (DG) have demonstrated excellent long-term cycling performance in Li||Si half cells. However, their utilization in full cells like LiNi0.8Mn0.1Co0.1O2 (NMC811)||Si remains limited due to their relatively low oxidation stability at the NMC811 sid
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25

Mayer, Dominik, Ann-Kathrin Wurba, Benjamin Bold, Jonathan Bernecker, Anna Smith, and Jürgen Fleischer. "Investigation of the Mechanical Behavior of Electrodes after Calendering and Its Influence on Singulation and Cell Performance." Processes 9, no. 11 (2021): 2009. http://dx.doi.org/10.3390/pr9112009.

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Battery cell production is a complex process chain with interlinked manufacturing processes. Calendering in particular has an enormous influence on the subsequent manufacturing steps and final cell performance. However, the effects on the mechanical properties of the electrode, in particular, have been insufficiently investigated. For this reason, the impact of different densification rates during calendering on the electrochemical cell performance of NMC811 (LiNi0.8Mn0.1Co0.1O2) half-cells are investigated to identify the relevant calendering parameters. Based on this investigation, an experi
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26

Ortiz-Ledon, Cesar, Louis Vincent Morris, and Robert J. Hamers. "Understanding How Organosilicon Additives Delay Electrolyte Decomposition on LiNi0.8Mn0.1Co0.1O2 (NMC 811) Cathodes Using in Situ Techniques." ECS Meeting Abstracts MA2022-02, no. 3 (2022): 183. http://dx.doi.org/10.1149/ma2022-023183mtgabs.

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Cathode materials such as LiNi0.8Mn0.1Co0.1O2 (NMC811) are of great interest for Li-ion battery (LIB) systems. By increasing the Ni content, the price decreases since Co is an expensive transition metal. In addition, NMC811 offers higher capacity and operating at high voltages, compared to other cathode materials (i.e., LCO, LMO, etc.). However, this cathode material suffers degradation from different sources. One of the main detrimental processes is oxygen loss from the lattice, which can cause decomposition of electrolyte components such as cyclic carbonates and further generate undesirable
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27

Eldesoky, A., E. R. Logan, A. J. Louli, et al. "Impact of Graphite Materials on the Lifetime of NMC811/Graphite Pouch Cells: Part II. Long-Term Cycling, Stack Pressure Growth, Isothermal Microcalorimetry, and Lifetime Projection." Journal of The Electrochemical Society 169, no. 1 (2022): 010501. http://dx.doi.org/10.1149/1945-7111/ac42f1.

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Part II of this 2-part series examines the impact of competitive graphite materials on NMC811 pouch cell performance using Ultra-High Precision Coulometry (UHPC), isothermal microcalorimetry, and in-situ stack growth. A simple lifetime projection of the best NMC811/graphite cells as a function of operating temperature is made. We show that graphite choice greatly impacts fractional fade, while fractional charge endpoint capacity slippage was largely unchanged due to identical cathodes. We show that an increase in graphite 1st cycle efficiency due to limited redox-active sites—favourable for mi
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28

Nayak, Debasis, Farheen Sayed, Adam J. Lovett, et al. "Understanding Surface Degradation Mechanisms in Ni-Rich Cathodes for Li-Ion Batteries." ECS Meeting Abstracts MA2024-01, no. 2 (2024): 230. http://dx.doi.org/10.1149/ma2024-012230mtgabs.

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High Ni-rich layered cathodes, such as; LiNi0.8Co0.15Al0.05O2 (NCA) and LiNi0.8Mn0.1Co0.1O2 (NMC811) materials, offer very high capacity and excellent rate capability fulfilling the pressing priorities. However, the cyclic performance is poor compared to other cathodes with lower Ni content. Due to high surface reactivity, first-cycle irreversibility is quite high in all these Ni-rich cathodes. Such surface reactions lead to different electrochemically inactive phases and reduce cyclic performance. Herein, we report a comprehensive analysis of plane selective cathode and electrolyte interface
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29

Eldesoky, A., N. Kowalski, and J. R. Dahn. "Highlighting the Advantages of Operating NMC811 Cells to Voltages below 4.20 V Compared to NMC Grades with Lower Ni Content." Journal of The Electrochemical Society 170, no. 8 (2023): 080515. http://dx.doi.org/10.1149/1945-7111/aceffd.

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Ni-rich Li-ion cells suffer from severe capacity fade at high states of charge (SOC) due to oxygen release and/or lattice volume collapse. We share long-term cycling results (12000 h) at 40 °C for NMC811, NMC532, and NMC640 cells cycled with different upper cut-off voltages (UCV), C-rates, and depths of discharge (DOD). We show that cycling to a greater UCV results in more capacity loss and resistance growth as expected. However, NMC811 suffered from 5–10 times greater resistance growth at 4.20 V compared to 4.06 V, while the resistance for NMC532 and NMC640 cycled to 4.30 V was roughly twice
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30

SHI, Xian, Toshiki Watanabe, Kentaro Yamamoto, et al. "Analysis of Structural Changes in Practical Batteries during Overcharging Using Synchrotron X-Ray CT Imaging." ECS Meeting Abstracts MA2023-02, no. 2 (2023): 331. http://dx.doi.org/10.1149/ma2023-022331mtgabs.

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Lithium-ion rechargeable batteries are desired for applications such as power sources for electric vehicles, which require increased energy density to extend cruising range. In the cathode, increasing the nickel content makes it possible to increase the energy density, but this is problematic due to a decrease in safety. To solve this problem, it is necessary to clarify the phenomena leading to structural breakdown by operando observation[1]. We have developed a system for operando non-destructive observation of the internal structure of all batteries under transient conditions using 100 keV c
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31

Desta, Gidey Bahre Bahre, and Yao Jane Hsu (b)*. "Using Synchrotron Techniques, Investigation of Electrochemical Interfaces in Ni-Rich NMC and Sulfide Electrolytes in All-Solid-State Lithium Metal Batteries." ECS Meeting Abstracts MA2022-02, no. 7 (2022): 2610. http://dx.doi.org/10.1149/ma2022-0272610mtgabs.

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a Nano-electrochemistry Laboratory, Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan, R.O.C b National Synchrotron Radiation Research Center (NSRRC), Hsinchu, 30076, Taiwan, R.O.C In all-solid-state lithium metal batteries enable long cyclability of high voltage oxides cathode persistent problem for the large scale application as their underprivileged interfacial steadiness in contrast to sulfide solid-state electrolyte. In this context, the interfaces of the solid electrolyte and Ni-rich NMC811 active material are l
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32

Slaughter, Jonathan, Richard L. B. Chen, Dominic S. Wright, and Clare P. Grey. "Preventing Degradation of NMC811 with Bimetallic Oxide Coatings." ECS Meeting Abstracts MA2022-01, no. 2 (2022): 364. http://dx.doi.org/10.1149/ma2022-012364mtgabs.

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High nickel-content cathodes such as NMC811 (LiNi0.8Mn0.1Co0.1O2) offer high practical capacities but undergo rapid degradation during cycling due to multiple mechanisms, such as surface phase transformations, reactive oxygen release and transition metal dissolution. Coatings using metal oxides have been proposed to provide surface protection against these processes. In this work we have used bespoke bimetallic alkoxide precursors to deliver unique bimetallic oxide coatings onto NMC811 secondary particles. Bimetallic combinations of lithium and zirconium or magnesium and zirconium showed enhan
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33

Llewellyn, Alice V., Rhodri Jervis, and Paul R. Shearing. "Operando Bragg Coherent Diffraction Imaging of Commercial Polycrystalline and Single Crystal NMC811 Electrodes." ECS Meeting Abstracts MA2024-02, no. 4 (2024): 504. https://doi.org/10.1149/ma2024-024504mtgabs.

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Commercial candidates for electric vehicle batteries include Ni-rich Li(Ni0.8Mn0.1Co0.1)O2 (NMC811) cathodes due to their high specific capacity (200 mAh/g) and reduced cobalt content, which has positive socio-economic repercussions. Despite all of the advantages, these materials suffer from a range of degradation modes, many of which are associated with the redox and crystallographic behavior at high states of charge and are thought to be the cause of rapid capacity fade. NMC811 suffers from anisotropic changes in the crystal structure during cycling, which induce strain and can then lead to
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34

Tiozzo, Arianna, Keyhan Ghaseminezhad, Asya Mazzucco, et al. "Investigating the Influence of Three Different Atmospheric Conditions during the Synthesis Process of NMC811 Cathode Material." Crystals 14, no. 2 (2024): 137. http://dx.doi.org/10.3390/cryst14020137.

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Lithium-ion batteries (LIBs) are fundamental for the energetic transition necessary to contrast climate change. The characteristics of cathode active materials (CAMs) strongly influence the cell performance, so improved CAMs need to be developed. Currently, Li(Ni0.8Mn0.1Co0.1)O2 (NMC811) is state-of-the-art among the cathodic active materials. The aim of this work is the optimization of the procedure to produce NMC811: two different syntheses were investigated, the co-precipitation and the self-combustion methods. For a better understanding of the synthesis conditions, three different types of
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35

Wang, Chunsheng, and Jijian Xu. "(Invited) Low-Temperature Electrolytes for G/NMC811 Cells." ECS Meeting Abstracts MA2023-02, no. 4 (2023): 603. http://dx.doi.org/10.1149/ma2023-024603mtgabs.

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We report and validate an electrolyte design strategy based on a group of soft solvents that strikes a balance between weak Li+–solvent interactions, sufficient salt dissociation and desired electrochemistry to fulfill all the aforementioned requirements. Remarkably, the 4.5-volt NMC811||graphite coin cells with areal capacities of more than 2.5 milliampere hours per square centimeter retain 75 percent (54 percent) of their room-temperature capacity when these cells are charged and discharged at −50 degrees Celsius (−60 degrees Celsius) at a C rate of 0.1C, and the NMC811||graphite pouch cells
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36

Kim, Se-Ho, Stoichko Antonov, Xuyang Zhou, et al. "Atom probe analysis of electrode materials for Li-ion batteries: challenges and ways forward." Journal of Materials Chemistry A 10, no. 9 (2022): 4926–35. http://dx.doi.org/10.1039/d1ta10050e.

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37

Emmett, Ryan, Rebecca Boston, and Alisyn Nedoma. "Variation of Metal Precursor Salts and Biotemplates in the Synthesis and Morphological Control of Biotemplated LiNi0.8Mn0.1Co0.1O2 Lithium-Ion Cathodes." ECS Meeting Abstracts MA2024-02, no. 1 (2024): 123. https://doi.org/10.1149/ma2024-021123mtgabs.

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Lithium-ion cells are at the forefront of the fight to reduce the effects of climate change through their growing use in transport and energy storage, with electric vehicles being a focal point of their use. The public perception of current-gen electric vehicles, however, is that compared to current internal combustion engine vehicles their range is too low, emissions from production are too high, and they are too costly. In addition, current gen lithium-ion cells are produced using materials using slave labour such as cobalt, which can further reduce uptake of electric vehicles. Lithium-ion c
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38

Prasad Thapaliya, Bishnu, Albina Y. Borisevich, Harry M. Meyer, and Sheng Dai. "Enhancing Cycling Stability and Capacity Retention of High-Capacity-High-Voltage Cathodes by Reengineering Interfaces Via Electrochemical Fluorination." ECS Meeting Abstracts MA2023-01, no. 7 (2023): 2758. http://dx.doi.org/10.1149/ma2023-0172758mtgabs.

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High-capacity high voltage cathodes (NMC811, LNMO) are promising cathodes for electromobility due to high energy densities. However, several factors (extensive oxidation of electrolytes, growth of thick cathode electrolyte interphase (CEI), irreversible capacity loss, low coulombic efficiency) related to high energy density materials inhibit their practical application. Herein, we report the formation of the conformal LiF interfaces on NMC811/LNMO cathodes via novel electrochemical fluorination. An electrochemically induced LiF layer stabilized the interfaces and reduces the leakage of the ele
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39

Bhaskaran, Kesawarthini, Melchiade Manirakiza, Ramin Karimi Azari, Clara Santato, and Francesca Soavi. "In Operando Investigation of Electronic and Ionic Transport in NMC811 Cathodes Using Ion-Gated Transistor (IGT) Configuration." ECS Meeting Abstracts MA2025-01, no. 1 (2025): 42. https://doi.org/10.1149/ma2025-01142mtgabs.

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Lithium-ion batteries (LIBs) are integral to modern technology, powering everything from portable electronics to electric vehicles. Advancing their performance depends on a detailed understanding of electronic and ionic transport in cathode materials. In this study, we investigated the transport properties of NMC811 (LiNi0.85Mn0.05Co0.1O2), a high-capacity cathode material with great potential for next-generation LIBs. We employed an ion-gated transistor (IGT) configuration, using NMC811 as the channel material, interfaced with the ionic liquid [EMIM][TFSI] and tested both with and without LiT
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40

Romano Brandt, León, John-Joseph Marie, Thomas Moxham, et al. "Synchrotron X-ray quantitative evaluation of transient deformation and damage phenomena in a single nickel-rich cathode particle." Energy & Environmental Science 13, no. 10 (2020): 3556–66. http://dx.doi.org/10.1039/d0ee02290j.

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41

Guerrero Mejía, Luis Miguel, Francisco Ruiz-Zepeda, Elena Tchernychova, and Robert Dominko. "Coatings Based on Single-Ion and Intrinsically Conducting Polymers for High-Voltage Cathode Materials." ECS Meeting Abstracts MA2024-02, no. 7 (2024): 1002. https://doi.org/10.1149/ma2024-0271002mtgabs.

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One of the main challenges presented by cathodic materials for lithium batteries is to ensure that capacity is maintained during cycling. The Ni-rich cathode LiNi0.8Mn0.1Co0.1O2 (NMC811) is considered a promising material due to its high energy density. However, this material presents a rapid decay in its capacity during the first charging and discharging cycles due to the direct contact of the NMC811 particles with the electrolyte. In this work, we have investigated the development and the effects on the electrochemical properties of a polymer coating based on a lithium single-ion conductor t
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42

Sawangphruk, Montree, and Kan Homalamai. "(Digital Presentation) Insight into the Electrolyte Decomposition Under Abused Testing Protocol Towards Ni-Rich Li-Ion Batteries." ECS Meeting Abstracts MA2022-01, no. 2 (2022): 249. http://dx.doi.org/10.1149/ma2022-012249mtgabs.

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Nowadays, Li-ion batteries (LIBs) have been gained a lot of attention in the energy storage field since its widely used for many applications. However, the misuse or misoperation of the batteries can generate electrolyte decomposition causing a short life span and safety hazards. Herein, two types of Ni-rich NMC811 i.e., single-crystal and polycrystal were used to study the electrolyte evolution under conventional and abused battery testing protocols. The in-house in situ cells shed light on electrolyte decomposition analyzed by NMR, GC-MS, and ICP, DEMS, and computational calculation. We foun
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43

Zhao, Yue, Ziqiang Liu, Zhendong Li, Zhe Peng, and Xiayin Yao. "Constructing stable lithium metal anodes using a lithium adsorbent with a high Mn3+/Mn4+ ratio." Energy Materials 2, no. 5 (2022): 34. http://dx.doi.org/10.20517/energymater.2022.44.

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Lithium (Li) metal batteries (LMBs) have emerged as the most prospective candidates for post-Li-ion batteries. However, the practical deployment of LMBs is frustrated by the notorious Li dendrite growth on hostless Li metal anodes. Herein, a protonated Li manganese (Mn) oxide with a high Mn3+/Mn4+ ratio is used as a Li adsorbent for constructing highly stable Li metal anodes. In addition to the Mn3+ sites with high Li affinity that afford an ultralow Li nucleation overpotential, the decrease in the average Mnn+ oxidation state also induces a disordered adsorbent structure via the Jahn-Teller e
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44

Yourey, William. "Silicon Negative Electrodes—What Can Be Achieved for Commercial Cell Energy Densities." Batteries 9, no. 12 (2023): 576. http://dx.doi.org/10.3390/batteries9120576.

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Historically, lithium cobalt oxide and graphite have been the positive and negative electrode active materials of choice for commercial lithium-ion cells. It has only been over the past ~15 years in which alternate positive electrode materials have been used. As new positive and negative active materials, such as NMC811 and silicon-based electrodes, are being developed, it is crucial to evaluate the potential of these materials at a stack or cell level to fully understand the possible increases in energy density which can be achieved. Comparisons were made between electrode stack volumetric en
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45

Xu, Wei, Connor Welty, Margaret R. Peterson, Jeffrey A. Read, and Nicholas P. Stadie. "Exploring the Limits of the Rapid-Charging Performance of Graphite as the Anode in Lithium-Ion Batteries." Journal of The Electrochemical Society 169, no. 1 (2022): 010531. http://dx.doi.org/10.1149/1945-7111/ac4b87.

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Graphite is, in principle, applicable as a high-power anode in lithium-ion batteries (LIBs) given its high intralayer lithium diffusivity at room temperature. However, such cells are known to exhibit poor capacity retention and/or undergo irreversible side reactions including lithium plating when charged at current rates above ∼2 C (∼740 mA g−1). To explore the inherent materials properties that limit graphite anodes in rapid-charge applications, a series of full-cells consisting of graphite as the anode and a standard Li[Ni0.8Mn0.1Co0.1]O2 (NMC811) cathode was investigated. Instead of a conve
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46

Weijers, Mark, Pranav Karanth, Pierfrancesco Ombrini, Davide Ripepi, Frans Ooms, and Fokko M. Mulder. "NMC811 Electrodes with High Mass Loadings Enabled By Non-Solvent Induced Phase Inversion." ECS Meeting Abstracts MA2023-02, no. 8 (2023): 3366. http://dx.doi.org/10.1149/ma2023-0283366mtgabs.

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Higher energy density Li-ion batteries that can enable longer driving ranges are currently subject to intensive research interest. Increasing the thickness of electrodes and reducing the proportion of inactive components per cell is one way to achieve this. In thick electrodes, a higher electronic and ionic overpotential and mechanical failure (cracking, delamination etc.) induced by binder migration during the drying process leads to sluggish (dis)charge performance or even cell failure respectively. Here we report non-solvent induced phase inversion as a scalable, effective method to arrive
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47

Tanim, Tanvir R., Zhenzhen Yang, Donal P. Finegan, et al. "Key Aging Modes and Mechanisms for Extreme Fast Charging of Lithium-Ion Batteries." ECS Meeting Abstracts MA2022-02, no. 5 (2022): 565. http://dx.doi.org/10.1149/ma2022-025565mtgabs.

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Enabling extreme fast charging (XFC, charging in 10 to 15 minutes) in a lithium-ion battery (LiB) could play a key role in subsiding consumer’s range anxiety and spur the widespread adoption of electric vehicles (EVs).1,2 Such a high rate of charging induces unique aging modes in LiBs, thereby requiring a comprehensive understanding to enable effective solution strategies to minimize the negative effects of life and performance. This presentation will present a comprehensive understanding of the dominating aging modes and mechanisms of XFC in low- and moderate-loading Gr/NMC LiBs. We will disc
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48

Khodeir, Miriam, Ulf Breddemann, Krum Banov, and Petr Novák. "How Do Impurities in Electrolytes Affect the Electrochemical Performance of Oxides in Lithium-Ion Batteries?" ECS Meeting Abstracts MA2023-01, no. 2 (2023): 641. http://dx.doi.org/10.1149/ma2023-012641mtgabs.

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The recovery and treatment of spent LIBs has already been studied extensively. On one hand, the hydrometallurgical recovery of cathode materials has aroused widespread attention because of its low energy consumption and benefit to the environment. On another hand, the purification of the materials reclaimed from spent batteries is a challenging process with high probability that, later, some remaining impurities such as transition metal carbonates and sulfates could be released into the electrolyte. In this way the impurity content will have a serious impact on the final performance of the bat
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49

Wang, Fu-Ming. "Multi-Functionalized High Ionic Conductive Soft Matter for Separator-Free All Solid-State Lithium-Ion Battery." ECS Meeting Abstracts MA2023-02, no. 6 (2023): 937. http://dx.doi.org/10.1149/ma2023-026937mtgabs.

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Solid state battery (SSB) with its promising advantages such as extreme light weight, thin film manufacturing, and compact structure, which leads to a possibility of high energy density design (up to 400-500 Wh/kg). The most important key for the development of SSB is the solid electrolyte (SE). Nowadays, there are several SEs been studied to overcome many drawbacks that are being investigated. Those problems are low ionic conductivity at room temperature, low electrochemical stability, low interfacial compatibility, and low mechanical property, respectively. Although several SEs like sulfide,
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50

Parks, Huw Christopher William, Aaron Wade, Thomas M. M. Heenan, et al. "Crack Hysteresis Phenomena in Polycrystalline NMC811 Secondary Particles." ECS Meeting Abstracts MA2023-01, no. 7 (2023): 2847. http://dx.doi.org/10.1149/ma2023-0172847mtgabs.

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Using X-ray tomography, we can predict and study the factors that govern fracture behaviour and cracking in NMC811 particles as a function of potential. Cracking and fracturing is known to cause a decline in battery performance, as regions become disintegrated from the conductive matrix. However, electrochemically induced cracking can be difficult to assess due to complicated sample preparation methods required. An in-situ study that accurately determines the onset of cracking during delithiation from the layered structure is crucial to characterize voltage-induced fracturing in battery partic
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