Relevant bibliographies by topics / Galvanostatic Charging-Discharging

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Academic literature on the topic 'Galvanostatic Charging-Discharging'

Author: Grafiati
Published: 5 June 2025
Last updated: 24 June 2025

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Journal articles on the topic "Galvanostatic Charging-Discharging"

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Nakata, Shunji. "Investigation of Charging Efficiency of a Lithium-ion Capacitor during Galvanostatic Charging Method." Materials 12, no. 19 (2019): 3191. http://dx.doi.org/10.3390/ma12193191.

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The charging efficiency of a lithium-ion capacitor (LIC) is an important problem. Until now, due to the stepwise charging method, the charging efficiency of 95.5% has been realized. However, the problem is that the issue of what level the charging efficiency can be increased to, is yet to be well investigated. In this article, the problem is investigated under the galvanostatic charging condition. The charging efficiency is measured as a function of the charging current. As a result, it can be more than 99.5% when the charging is quasi-static, in other words, an adiabatic process is realized. Next, the problem of how much energy can be taken out from the energy-stored capacitor is investigated with a load resistor circuit. It is clarified that the discharging energy from the capacitor is equal to the stored energy in the case when a load resistor is used and the discharging is quasi-static. It is confirmed that LICs are suitable for use as energy storage devices.
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Pfleging, Wilhelm, and Petronela Gotcu. "Femtosecond Laser Processing of Thick Film Cathodes and Its Impact on Lithium-Ion Diffusion Kinetics." Applied Sciences 9, no. 17 (2019): 3588. http://dx.doi.org/10.3390/app9173588.

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Quantitative experiments of lithiation/delithiation rates were considered for a better understanding of electrochemical intercalation/deintercalation processes in laser structured thick film cathodes. Besides galvanostatic cycling for evaluation of specific discharge capacities, a suitable quantitative approach for determining the rate of Li-ion insertion in the active material and the rate of Li-ion transport in the electrolyte is expressed by chemical diffusion coefficient values. For this purpose, the galvanostatic intermittent titration technique has been involved. It could be shown that laser structured electrodes provide an enhanced chemical diffusion coefficient and an improved capacity retention at high charging and discharging rates.
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Zhang, Xinglei, Wen Wang, Jun Lu, Li Hua, and Jianpo Heng. "Reversible heat of electric double-layer capacitors during galvanostatic charging and discharging cycles." Thermochimica Acta 636 (July 2016): 1–10. http://dx.doi.org/10.1016/j.tca.2016.04.014.

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Sheng, Yijin, Fangxu Hu, Yu Wu, De Li, Wenting Ji, and Yong Chen. "Electrochemical oscillation during galvanostatic charging and discharging of Zr-modified Li4Ti5O12 in Li-ion batteries." RSC Advances 14, no. 30 (2024): 21799–807. http://dx.doi.org/10.1039/d4ra03331k.

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WILAMOWSKA, MONIKA, ANETA MIETLIŃSKA, ANNA LISOWSKA-OLEKSIAK, and RALF RIEDEL. "ORGANIC–INORGANIC MATERIALS FOR FAST CHARGING–DISCHARGING PROCESSES IN ENERGY STORAGE DEVICES." Functional Materials Letters 04, no. 02 (2011): 193–97. http://dx.doi.org/10.1142/s1793604711001774.

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The electrochemical properties of composite material consisting of poly(3, 4-ethylenedioxythiophene) (pEDOT) and iron hexacyanocobaltate (FehcCo) have been investigated for supercapacitors' application. The composite material pEDOT/FehcCo was electrodeposited on titanium or carbon fabric substrate. Prepared electrodes were used in supercapacitors operating in nonaqueous electrolytes (1 M KPF6, 1 M LiPF6 in ethylene carbonate with dimethyl carbonate mixture of solvents). The capacitance values were estimated by galvanostatic and cyclic voltammetry techniques. The material was investigated in symmetric two-electrode cell configuration. The material pEDOT/FehcCo exhibits high capacitance values (~70 F cm-3) and a good cycling performance with a high stability in the tested electrolytes.
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Zeng, Liang, Taizheng Wu, Ting Ye, Tangming Mo, Rui Qiao, and Guang Feng. "Modeling galvanostatic charge–discharge of nanoporous supercapacitors." Nature Computational Science 1, no. 11 (2021): 725–31. http://dx.doi.org/10.1038/s43588-021-00153-5.

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AbstractMolecular modeling has been considered indispensable in studying the energy storage of supercapacitors at the atomistic level. The constant potential method (CPM) allows the electric potential to be kept uniform in the electrode, which is essential for a realistic description of the charge repartition and dynamics process in supercapacitors. However, previous CPM studies have been limited to the potentiostatic mode. Although widely adopted in experiments, the galvanostatic mode has rarely been investigated in CPM simulations because of a lack of effective methods. Here we develop a modeling approach to simulating the galvanostatic charge–discharge process of supercapacitors under constant potential. We show that, for nanoporous electrodes, this modeling approach can capture experimentally consistent dynamics in supercapacitors. It can also delineate, at the molecular scale, the hysteresis in ion adsorption–desorption dynamics during charging and discharging. This approach thus enables the further accurate modeling of the physics and electrochemistry in supercapacitor dynamics.
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LIANG, Chih-Hsiang, Chiao-Lin NIEN, Hsien-Chun HU, and Chii-Shyang HWANG. "Charging/Discharging Behavior of Manganese Oxide Electrodes in Aqueous Electrolyte Prepared by Galvanostatic Electrodeposition." Journal of the Ceramic Society of Japan 115, no. 1341 (2007): 319–23. http://dx.doi.org/10.2109/jcersj.115.319.

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Licht, F., M. A. Davis, and H. A. Andreas. "Charge redistribution and electrode history impact galvanostatic charging/discharging and associated figures of merit." Journal of Power Sources 446 (January 2020): 227354. http://dx.doi.org/10.1016/j.jpowsour.2019.227354.

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Li, Xueyan, Meng Xiao, Song-Yul Choe, and Won Tae Joe. "Modeling and analysis of LiFePO4/Carbon battery considering two-phase transition during galvanostatic charging/discharging." Electrochimica Acta 155 (February 2015): 447–57. http://dx.doi.org/10.1016/j.electacta.2014.12.034.

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Lu, Peilin, Nathan Joseph Fritz, Shijie Sun, Jaehong Park, and Paul V. Braun. "Demystifying the Asymmetry in Lithiation/Delithiation Behaviors of Silicon Anodes for Lithium-Ion Batteries." ECS Meeting Abstracts MA2023-01, no. 4 (2023): 827. http://dx.doi.org/10.1149/ma2023-014827mtgabs.

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One critical factor that impedes the wide adoption of electric vehicles is the charging time, which is considerably longer when compared to the refuel time of internal combustion vehicles. To shorten the charging time to less than 6 minutes, extremely fast charging (XFC) of more than 10C is required. In recent years, silicon was regarded as a promising candidate for fast charging because it has a high energy density and is less prone to lithium dendrite growth. However, existing Silicon technologies have not surpassed the 6-minute charging goal. Here, we discuss the possibility for XFC of a three-dimensionally engineered electrically conductive porous Ni/Si composite anode. This anode structure can effectively alleviate the huge volume change upon cycling and provide a pathway for fast electron and ion conduction. Although it shows excellent delithiation (discharging) rate capabilities when coupled with an optimized electrolyte, the lithiation capacity is severely limited at higher C-rates. To study the asymmetry in lithiation/delithiation and the mechanism of relatively sluggish lithiation, we performed rate performance test, Galvanostatic Intermittent Titration Technique (GITT) and Direct Current Electrochemical Impedance Spectroscopy (DCEIS). Based on our findings, we propose the potential rate limiting step for lithiation, which is believed to improve the charging rates substantially when overcome.
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Book chapters on the topic "Galvanostatic Charging-Discharging"

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Yadav, Jitendra Kumar, and Ambesh Dixit. "Physics and Chemistry of Li-ion Rechargeable Batteries." In Advancement in Oxide Utilization for Li Rechargeable Batteries. Royal Society of Chemistry, 2025. https://doi.org/10.1039/9781837673612-00023.

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Understanding the physics and chemistry of Li-ion batteries (LIBs) is crucial for harnessing their potential as a pivotal technology in the transition toward cleaner and more efficient energy storage solutions. This chapter provides a broad overview of the fundamental principles inherent in LIB operation. LIBs have become most popular in modern life, powering everything from smartphones to electric vehicles. Thus, understanding the physics and chemistry of LIBs becomes essential for better addressing the associated issues and challenges. This chapter begins by delving into the critical components of the LIBs, including the anode, cathode, electrolyte, and separator, explaining their roles in the electrochemical processes. Further, it explores the electrochemical reactions involved during galvanostatic discharging and charging cycles, illuminating Li+ movement between the cathode and anode. The chapter also emphasizes the factors affecting electrochemical potential, capacity, energy density, and open circuit voltage. The commercially available different designs of the LIBs cell are also discussed together with the safety considerations, emphasizing the importance of mitigating risks associated with LIBs. This chapter lays the groundwork for a deeper exploration of Li-ion battery technology, paving the way for subsequent chapters that delve into advanced concepts and practical applications. Finally, it includes the significant challenges for the LIBs at present and future perspectives or developments toward mitigating the associated challenges.
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Conference papers on the topic "Galvanostatic Charging-Discharging"

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Bronson, Arturo, Charles Odegard, Rene Chavarria, Patrick Rodriguez, Garry Warren, and Rajiv Hadkar. "The Contribution of Capacitive Charging During Corrosive Wear Measurements." In CORROSION 1997. NACE International, 1997. https://doi.org/10.5006/c1997-97273.

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Abstract The capacitances of passivated electrodes were investigated to aid in explaining the effect of capacitive discharging during scribing of rotating cylindrical electrodes. In scribing experiments, a capacitive current is associated with the transient current response which results from removing the passive film. The effective capacitance of the electrodes were acquired by using triangular sweep voltammetry (TSV), galvanostatic double pulse technique (GDP), and electrochemical impedance spectroscopy (EIS) conducted on Fe -16 wt%Ni -16 wt%Cr and Fe - 25 wt%Ni - 25 wt%Cr alloys immersed in 0.1 M H2SO4 - 0.01 M KCl. The TSV technique involved the electrical perturbation of an electrode/solution interface with a triangular wave potential while in the passive condition (i.e., +350 mV SCE). The TSV and GDP experiments determined that the effective capacitance of the electrode/solution interface ranged from 0.1 mF/cm2 to 0.735 mF/cm2 depending on the technique. The double layer capacitance acquired with impedance spectroscopy ranged from 47 to 100 μF/cm2. With the capacitance values, the time constant for transient response appears to occur within the range from 16 ms to less than 3 μs, depending on the dissolution (or faradaic) reaction and capacitance.
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Richardson, Robert R., Christoph R. Birkl, Michael A. Osborne, and David A. Howey. "Battery Capacity Estimation From Partial-Charging Data Using Gaussian Process Regression." In ASME 2017 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/dscc2017-5365.

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Accurate on-board capacity estimation is of critical importance in lithium-ion battery applications. Battery charging/discharging often occurs under a constant current load, and hence voltage vs. time measurements under this condition may be accessible in practice. This paper presents a novel diagnostic technique, Gaussian Process regression for In-situ Capacity Estimation (GP-ICE), which is capable of estimating the battery capacity using voltage vs. time measurements over short periods of galvanostatic operation. The approach uses Gaussian process regression to map from voltage values at a selection of uniformly distributed times, to cell capacity. Unlike previous works, GP-ICE does not rely on interpreting the voltage-time data through the lens of Incremental Capacity (IC) or Differential Voltage (DV) analysis. This overcomes both the need to differentiate the voltage-time data (a process which amplifies measurement noise), and the requirement that the range of voltage measurements encompasses the peaks in the IC/DV curves. Rather, GP-ICE gives insight into which portions of the voltage range are most informative about the capacity for a particular cell. We apply GP-ICE to a dataset of 8 cells, which were aged by repeated application of an ARTEMIS urban drive cycle. Within certain voltage ranges, as little as 10 seconds of charge data is sufficient to enable capacity estimates with ∼ 2% RMSE.
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