Distinct capacity fade modes of Nickel-rich/Graphite-SiOx power lithium ion battery

2022 ◽  
Vol 47 ◽  
pp. 103830
Author(s):  
Hang Li ◽  
Weijie Ji ◽  
Zheng He ◽  
Yuechao Zhang ◽  
Jinbao Zhao
2021 ◽  
Vol 485 ◽  
pp. 229360
Author(s):  
Prashant Gargh ◽  
Abhishek Sarkar ◽  
Yu Hui Lui ◽  
Sheng Shen ◽  
Chao Hu ◽  
...  

2015 ◽  
Vol 15 (4) ◽  
pp. 301 ◽  
Author(s):  
Y.Y. Mamyrbayeva ◽  
R.E. Beissenov ◽  
M.A. Hobosyan ◽  
S.E. Kumekov ◽  
K.S. Martirosyan

<p>There are technical barriers for penetration market requesting rechargeable lithium-ion battery packs for portable devices that operate in extreme hot and cold environments. Many portable electronics are used in very cold (-40 °C) environments, and many medical devices need batteries that operate at high temperatures. Conventional Li-ion batteries start to suffer as the temperature drops below 0 °C and the internal impedance of the battery  increases. Battery capacity also reduced during the higher/lower temperatures. The present work describes the laboratory made lithium ion battery behaviour features at different operation temperatures. The pouch-type battery was prepared by exploiting LiCoO<sub>2</sub> cathode material synthesized by novel synthetic approach referred as Carbon Combustion Synthesis of Oxides (CCSO). The main goal of this paper focuses on evaluation of the efficiency of positive electrode produced by CCSO method. Performance studies of battery showed that the capacity fade of pouch type battery increases with increase in temperature. The experimental results demonstrate the dramatic effects on cell self-heating upon electrochemical performance. The study involves an extensive analysis of discharge and charge characteristics of battery at each temperature following 30 cycles. After 10 cycles, the battery cycled at RT and 45 °C showed, the capacity fade of 20% and 25% respectively. The discharge capacity for the battery cycled at 25 °C was found to be higher when compared with the battery cycled at 0 °C and 45 °C. The capacity of the battery also decreases when cycling at low temperatures. It was important time to charge the battery was only 2.5 hours to obtain identical nominal capacity under the charging protocol. The decrease capability of battery cycled at high temperature can be explained with secondary active material loss dominating the other losses.</p>


Author(s):  
Zachary Salyer ◽  
Matilde D'Arpino ◽  
Marcello Canova

Abstract Aging models are necessary to accurately predict the SOH evolution in lithium ion battery systems when performing durability studies under realistic operatings, specifically considering time-varying storage, cycling, and environmental conditions, while being computationally efficient. This paper extends existing physics-based reduced-order capacity fade models that predict degradation resulting from the solid electrolyte interface (SEI) layer growth and loss of active material (LAM) in the graphite anode. Specifically, the physics of the degradation mechanisms and aging campaigns for various cell chemistries are reviewed to improve the model fidelity. Additionally, a new calibration procedure is established relying solely on capacity fade data and results are presented including extrapolation/validation for multiple chemistries. Finally, a condition is integrated to predict the onset of lithium plating. This allows the complete cell model to predict the incremental degradation under various operating conditions, including fast charging.


Author(s):  
Xiang Gao ◽  
Jun Xu

Abstract The capacity fade in lithium-ion battery (LIB) of high energy density using Si/C core–shell particle anode is one of the major barriers blocking its wide application. However, the underlying mechanism of electro-chemo-mechanical degradation remains unclear. In this study, we propose and validate a multiscale model (electrode level and particle level), considering electrochemical–mechanical coupling and cohesive zone method at the particle level. The effects of charging rate, core/shell ratio, and mechanical properties of the shell on the separation and capacity fade are discussed. We discover that larger charging rate, smaller core/shell ratio, and stiffer shell can mitigate the core–shell separation gap, leading to higher capacity retention. Results shed light on the degradation mechanism of Si/C core–shell anode and provide design guidance for Si/C anode materials in minimizing the capacity fade and safe battery charging/discharging strategy.


2019 ◽  
Vol 25 ◽  
pp. 100911 ◽  
Author(s):  
Abhishek Sarkar ◽  
Pranav Shrotriya ◽  
Abhijit Chandra ◽  
Chao Hu

2005 ◽  
Vol 150 ◽  
pp. 229-239 ◽  
Author(s):  
Andrew T. Stamps ◽  
Charles E. Holland ◽  
Ralph E. White ◽  
Edward P. Gatzke

2021 ◽  
Author(s):  
Alexander James Smith ◽  
Pontus Svens ◽  
Maria Varini ◽  
Göran Lindbergh ◽  
Rakel Wreland Lindström

An important step toward safer and more reliable lithium-ion battery systems is the development of better methods for detection and characterization of battery degradation. For a method to be suitable for online application (e.g., onboard an electric vehicle), it must be simple, explanatory, and non-invasive. In this work, we develop and track aging indicators over the life of 18650-format lithium-ion batteries with a blended NMC532-LMO positive electrode and graphite negative electrode. Cells are cycled until reaching 80 % of their original capacity under combinations of four different cycling conditions: ambient and sub-ambient temperatures (29 and 10 °C) and fast and mild rates (2.7 and 1.0C). Loss of lithium inventory dominates aging for all cases, with additional loss of NMC capacity under the combination of sub-ambient temperature and mild rate. A novel, easily acquired polarization factor (supported by electrochemical impedance spectroscopy) complements capacity fade analysis; it correlates well with ultimate cell lifetime and indicates changes in active aging processes. These processes are further revealed by differential voltage analysis (DVA) and incremental capacity analysis (ICA). New indicators and aging scenarios are evaluated for these techniques and supported by post mortem analysis. From in operando cycling data and a single, slow discharge curve, these four methods (capacity fade, polarization factor, DVA, and ICA) comprise a simple, explanatory, and non-invasive toolbox for evaluating aging online in lithium-ion battery systems.


2021 ◽  
Author(s):  
Honglang Jiang ◽  
Zhiwu Huang ◽  
Yongjie Liu ◽  
Dianzhu Gao ◽  
Zhiwei Gao ◽  
...  

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