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Dissertations / Theses on the topic 'Lithium rich cathode'

Author: Grafiati

Published: 4 June 2021

Last updated: 8 February 2022

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1

Watanabe, Aruto. "Analysis of Crystal and Electronic Structures of Next Generation Cathode Materials." Kyoto University, 2020. http://hdl.handle.net/2433/253385.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(人間・環境学)<br>甲第22549号<br>人博第952号<br>新制||人||226(附属図書館)<br>2019||人博||952(吉田南総合図書館)<br>京都大学大学院人間・環境学研究科相関環境学専攻<br>(主査)教授内本喜晴, 教授吉田寿雄, 准教授戸﨑充男<br>学位規則第4条第1項該当

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2

Steiner, James David. "Understanding and Controlling the Degradation of Nickel-rich Lithium-ion Layered Cathodes." Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/85281.

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Consumers across the world use lithium-ion batteries in some fashion in their everyday life. The growing demand for energy has led to batteries dying quicker than consumers want. Thus, there are calls for researchers to develop batteries that are longer lasting. However, the initial increase in battery life over the years has been from better engineering and not necessarily from making a better material for a battery. This thesis focuses on the understanding of the chemistry of the materials of a battery. Throughout the chapters, the research delves into the how and why materials with e

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3

Kim, Taehoon. "Fading phenomena in li-rich layered oxide material for lithium-ion batteries." Thesis, University of Oxford, 2015. http://ora.ox.ac.uk/objects/uuid:749fb26b-b226-487c-9f6b-4408967c9db6.

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Lithium-rich layered transition metal oxide cathode, represented as the chemical formula of xLi<sub>2</sub>MnO<sub>3</sub> · (1 - x)LiMO<sub>2</sub>(M = Mn, Ni, Co) , retains immense interest as one of the most promising candidates for energy storage system ranging from mobile devices to electric vehicle applications (EV/HEV/PHEV). This battery type benefits from superior theoretical capacity (>250 mAhg<sup>-1</sup>), high chemical potential (>4.6 V vs Li<sup>0</sup>), good thermal stability, high discharge capacity and lower cost compared with conventional cathodes (e.g. LiCoO<su

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4

Baur, Christian [Verfasser]. "Li-rich disordered rock salt transition metal oxyfluorides as novel cathode materials in lithium-ion batteries / Christian Baur." Ulm : Universität Ulm, 2020. http://d-nb.info/1219577693/34.

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5

Sigel, Florian [Verfasser], and H. [Akademischer Betreuer] Ehrenberg. "Thermally induced structural reordering in Li- and Mn-rich layered oxide lithium ion cathode materials / Florian Sigel ; Betreuer: H. Ehrenberg." Karlsruhe : KIT-Bibliothek, 2019. http://d-nb.info/1195049013/34.

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6

Jacquet, Quentin. "Li-rich Li3MO4 model compounds for deciphering capacity and voltage aspects in anionic redox materials." Electronic Thesis or Diss., Sorbonne université, 2018. http://www.theses.fr/2018SORUS332.

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Le réchauffement climatique, provoqué par l’augmentation de la concentration de CO2 dans l’atmosphère, est un problème majeur du 21ème siècle. C’est pourquoi, il est d’une importance capitale de valoriser l’utilisation des énergies renouvelables et des technologies de stockage d’énergie telles que les batteries Li-ion. Suivant ce but, les chercheurs ont mis au point un nouveau matériau d’électrode, le Li-rich NMC, dont l’utilisation permet d’augmenter significativement la capacité des batteries Li-ion grâce à la participation des oxygènes de l’oxyde dans la réaction électrochimique. Cependant,

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7

聖, 橋上, and Satoshi Hashigami. "Studies on degradation factors and their mitigation methods of cathode materials for advanced lithium-ion batteries." Thesis, https://doors.doshisha.ac.jp/opac/opac_link/bibid/BB13106330/?lang=0, 2019. https://doors.doshisha.ac.jp/opac/opac_link/bibid/BB13106330/?lang=0.

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再生可能エネルギーの大量導入に向けて、電力需給の安定化を目的として蓄電池を用いる電力貯蔵技術に注目が集まっている。現状のリチウムイオン電池(LIB)がベースの先進LIBは250Wh/kgの高エネルギー密度を有し、自動車のみならず電力貯蔵用途としても普及が期待されている。本研究では先進LIB正極材料として期待されるリチウム過剰系正極と高ニッケル三元系正極について容量低下などの劣化要因を明確にして、それら課題に対して正極粒子への酸化物修飾による解決を検討した。<br>The development of energy storage technologies using batteries has attracted much attention to introduce the renewable energy. If we can achieve 250 Wh kg-1 with the advanced LIBs based on the principle of LIB, we can lower the cost of the total energy storage systems while ensuring the safety, and hence the advanced LIBs will accelerate the world-wide spread of l

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8

Hua, Weibo [Verfasser], and H. [Akademischer Betreuer] Ehrenberg. "Lithium- and oxygen-driven structural evolution in Co-free Li-Mn-rich oxides as cathodes for lithium ion batteries / Weibo Hua ; Betreuer: H. Ehrenberg." Karlsruhe : KIT-Bibliothek, 2019. http://d-nb.info/118613996X/34.

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9

Teufl, Tobias Maximilian [Verfasser], Hubert A. [Akademischer Betreuer] Gasteiger, Tom [Gutachter] Nilges, and Hubert A. [Gutachter] Gasteiger. "Understanding Degradation Mechanisms of Lithium- and Manganese-Rich Layered Oxide Cathodes for Lithium-Ion Batteries / Tobias Maximilian Teufl ; Gutachter: Tom Nilges, Hubert A. Gasteiger ; Betreuer: Hubert A. Gasteiger." München : Universitätsbibliothek der TU München, 2019. http://d-nb.info/1213025966/34.

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10

hy, sunny, and sunny hy. "The Investigation on Instability of Lithium-rich Layered-oxide Cathode Material." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/02559425511534324005.

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博士<br>國立臺灣科技大學<br>化學工程系<br>102<br>The recent changes across transportation, communication, health, and now wearable technology represent a significant paradigm shift in which electronic devices are ubiquitous to all facets of daily human life. Although considerable progress have been made towards the different technologies, the power sources of these devices, mainly rechargeable lithium ion batteries, have seen a slower progression in advancement due to several factors that include a lack of commercially available high energy-dense materials. This limitation, among others, proves to be the bot

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11

HSIAO, SHENG-CHIEH, and 蕭勝傑. "The Study of Electrochemical Properties of High Voltage Cathode Materials Modified by Lithium Rich Cathode Materials." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/a4mfwd.

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12

HOU, JIAN-MING, and 侯建名. "The Synthesis, Modification and Electrochemical Properties of Li1.2Mn0.6Ni0.4O2.2 Lithium Rich Cathode Materials." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/8u87uf.

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碩士<br>國立虎尾科技大學<br>材料科學與工程系材料科學與綠色能源工程碩士班<br>107<br>Nowadays, lithium-ion batteries are widely used. However, as the rapid changes of people’s life, the functions of lithium-ion batteries have no longer good enough. Therefore, it is necessary to develop lithium-rich cathode materials. Because lithium-rich cathode materials have the main advantages of the high discharge capacity and high voltage, they have been regarded as the high capacity cathode materials for the next generation. However, there are still problems which block the materials from commercial usage, such as low initial coulombic e

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13

Huang, Hsin-Fu, and 黃信富. "In-situ Raman Investigation on Lithium-rich Layered Cathode Materials and STOBA Additives upon Cycling." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/24906345466521310851.

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碩士<br>國立臺灣科技大學<br>化學工程系<br>103<br>In this work, we focus on the observation of layered Lithium rich material structure by in-situ analysis technology during charge-discharge steps. From in-situ XRD analysis, the peaks for heterogeneous structure appear when charged over 4.4V. It means the structure of cathode material is unstable at high potential and due to the formation of oxygen vacancy which caused metal transition in the structure. When discharged to 2V, the structure also changed and the diffraction peak of (Li1-xMn2O4(400)) can be found from Mn reduction. After that, in-situ Raman spect

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14

Yu-ChengChuang and 莊祐誠. "Ab initio mechanistic study on charging/discharging behaviors of the lithium-rich layered composite cathode material in lithium-ion batteries." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/98746136990537954771.

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碩士<br>國立成功大學<br>材料科學及工程學系<br>104<br>The lithium-rich composite-layered oxide, xLi2MnO3•(1-x)LiM’O2, where M’ is transition metals, is a promising cathode material with high capacity in lithium ion batteries. An unusual charge-discharge feature for this material with sloping and plateau regions in the first run has been reported; however, mechanistic interpretations for this phenomenon are controversial in literature. In this work, ab initio calculations based on density functional theory were performed to examine the lattice stability of xLi2MnO3•(1-x)Li(Ni1/3Co1/3Mn1/3)O2 composite-layered ca

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15

Chu, Yun, and 朱昀. "Scaling up Production and Analysis of Li-rich Nickel Manganese Oxide Cathode for Lithium-ion Batteries." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/10846517079334766765.

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碩士<br>國立臺灣大學<br>化學工程學研究所<br>103<br>Among the reported cathode materials so far in the lithium-ion batteries, the class of layered lithium-rich manganese-transition metal oxide composite cathode (abbreviated as LrMOs), xLi2MnO3•(1-x)Li(Mn, M)O2 (M= Mn, Ni, Co), possesses potentially high specific capacity more than 250mAh/g and high average redox potential near 4 V and therefore potential energy density nearly 1000 Wh/kg, which is much higher than those of Li2MnO4, LiNi0.33Co0.33Mn0.33O2 and LiFePO4. With so many advantages, in this thesis, this cathode material wound try to produce in a large

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16

Chen, Wen-Chin, and 陳文勤. "Synthesis and Characterization of High-capacity Li-rich Nickel Manganese Oxide Cathode for Lithium-ion Batteries." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/91358272673477012938.

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博士<br>國立臺灣大學<br>化學工程學研究所<br>102<br>The future development of active materials for lithium ion battery is expected to proceed toward two major directions, namely reducing material cost and increasing electrode energy density. Among the reported cathode materials so far, layered lithium-rich manganese-transition metal oxide composite cathode (abbreviated as LrMOs), xLi2MnO3‧(1-x)Li(Mn, M)O2 (M= Mn, Ni, Co), possesses specific capacity of >250mAh/g with an average redox potential near 4V and therefore potential energy density nearly ~1000 WH/kg, which is much higher than those of Li2MnO4, LiNi0.3

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17

Pin-Ci, Liao, and 廖品齊. "Preparation of Li1.2Ni0.2Mn0.6O2 Li-rich Oxide Cathode Material Using a Solid-State Method in Lithium Ion Batteries." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/52754519689159535477.

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18

Yeh, You-Ren, and 葉祐任. "Synthesis of Lithium-Rich Layered Cathode Material and Investigation into the Enhanced Mechanism of Its Cell Performance via Surface Modification." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/ufa55w.

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碩士<br>國立臺灣科技大學<br>機械工程系<br>104<br>Owing to the high energy density and power capability properties, the layered lithium-rich cathode materials, Li (Li1/3-2x/3NixMn2/3-x/3)O2, have become one of potential cathode materials for lithium secondary battery. Using co-precipitation method, it is possible to effectively synthesize lithium-rich secondary particles in a perfect spherical morphology and with high packing density. By adjusting the pH value, reaction temperature, and precursor concentration, the uniformity and the size of the secondary particles can be controlled. Nevertheless, Li (Li1/3-

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19

YOU, CHENG-EN, and 游承恩. "Preparation of Li-rich oxide cathode material by a solid-state method for lithium ion batteries and its electrochemical property analysis." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/01458006478322470424.

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碩士<br>明志科技大學<br>化學工程系碩士班<br>105<br>The Li1.2Ni0.16Mn0.56Co0.08O2 (denoted as LRO) composite cathode material with layer structure was prepared by a solid-state ball-milled method. The reactants are LiOH·H2O, MnO2, Ni(OH)2, Co(OH)2 and tartaric acid (as a reducing agent),The as-prepared LRO composite was modified with different ratios of Li0.75La0.42TiO3 (denoted as LLTO) and RuO2 to improve electrochemical properties.The properties of the as-synthesized LRO composite cathode materials were examined by XRD, micro-Raman, SEM/EDX, HR-TEM, and TXRF. The 2032 coin cell was assembled to study the el

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20

LO, WEN-TSE, and 羅文澤. "Understanding the role of dopant metal atoms on the structural and electronic properties of Lithium rich Li1.2Ni0.2Mn0.6O2 Cathode material for Li-ion Batteries." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/3x53j5.

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碩士<br>國立臺灣科技大學<br>化學工程系<br>107<br>Li-ion batteries have been viewed as an efficient energy storage system since they firstly commercialized in the 1990s. Compared with convention lithium cobalt oxide, Li1.2Ni0.2Mn0.6O2 layered material can deliver higher specific capacity (~250 mAh/g) and high energy density (~1000 Wh/kg). Nevertheless, these materials still face some critical problems such as structural instability, voltage fading, and low rate performance. By the aid of DFT calculations, we demonstrated Li1.2Ni0.2Mn0.6O2 structure in atomic level. To solve the structural instability problem,

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21

Laha, Sourav. "Exploring Transition Metal Oxides Towards Development of New Functional Materials : Lithium-ion Battery Cathodes, Inorganic Pigments And Frustrated Magnetic Perovskite Oxides." Thesis, 2016. http://etd.iisc.ernet.in/handle/2005/2712.

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Transition metals (TMs) are ‘elements whose atoms have partially filled d-shell, or which can give rise to cations with an incomplete d-shell’. In TMs, the d-shell overlaps with next higher s-shell. Most of the TMs exhibit more than one (multiple) oxidation states. Some TMs, such as silver and gold, occur naturally in their metallic state but, most of the TM minerals are generally oxides. Most of the minerals on the planet earth are metal oxides, because of large free energies of formation for the oxides. The thermodynamic stability of the oxides is determined from the Ellingham diagram. Ellin

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22

Jin, Yi Chun, and 金怡君. "Development of Manganese-Based High Voltage Spinel and High Capacity Li-rich Layered Oxides for Improving Rate Capability as High Performance Cathode Materials in Lithium Ion Battery." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/7k72jx.

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23

Chen, Lin Yi, and 林怡辰. "Electrochemical Characteristics of Lithium-rich Layered Oxide Cathodes with 3-D Carbon Fiber Cloth as a Current Collector." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/f54g97.

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碩士<br>逢甲大學<br>材料科學與工程學系<br>104<br>In this study, a three-dimensional carbon cloth substituted for a traditional aluminum foil as a current collector for lithium-rich layered oxide cathodes (Li1.2Mn0.6Ni0.2O2). Heat treatment, single wall carbon nanotubes (SWCNTs) and phenolic resin (PR) were used to modify the carbon cloth. After 100 charge-discharge cycles under 1 C rate, eroded caves were observed on the aluminum foil current collector and SWCNTs were peeled off from the carbon cloth. According to XRD and Raman analysis, the structure of modified-carbon cloth maintained. C–F binding appear

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24

Lin, JHE-WEI, and 林哲緯. "Electrochemical and Structural Investigation on Ultra-thin ZnO and TiO2 Coated Lithium-Rich Layered Oxide Cathodes by Atomic Layer Deposition." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/j9299h.

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