A chemo-mechanical model coupled with thermal effect on the hollow core–shell electrodes in lithium-ion batteries

A chemo-mechanical model coupled with thermal effect on the hollow core–shell electrodes in lithium-ion batteries
复制标题

锂离子电池空心壳电极的热效应耦合化学机械模型

DOI:
10.1016/j.taml.2017.09.001
复制
发表时间:
2017-07
影响因子:
3.4
通讯作者:
Chunsheng Lu
Chunsheng Lu
中科院分区:
工程技术4区
文献类型:
--
作者:
Bin Hu;Zengsheng Ma;Weixin Lei;Youlan Zou;Chunsheng Lu

文献摘要

参考文献

被引文献

相似文献

电极是保证锂离子电池耐久性和安全性的关键部件。锂离子插入/移除和热膨胀失配可能在充电和放电过程期间在电极中引起高应力。本文基于COMSOL Multiphysics软件建立了一个连续介质模型,该模型综合考虑了电极的热、化学和力学行为。结果表明,由于扩散诱导应力和热失配,电极的几何形状对锂离子的扩散动力学起着重要的作用。较高的局部压应力导致较低的锂离子浓度,从而当一个颗粒嵌入另一个颗粒时导致较低的容量,这与实验观察一致。
Electrode is a key component to remain durability and safety of lithium-ion (Li-ion) batteries. Li-ion insertion/removal and thermal expansion mismatch may induce high stress in electrode during charging and discharging processes. In this paper, we present a continuum model based on COMSOL Multiphysics software, which involves thermal, chemical and mechanical behaviors of electrodes. The results show that, because of diffusion-induced stress and thermal mismatch, the electrode geometry plays an important role in diffusion kinetics of Li-ions. A higher local compressive stress results in a lower Li-ion concentration and thus a lower capacity when a particle is embedded another, which is in agreement with experimental observations.
DOI: 10.1063/1.1477624
发表时间: 2002-05
影响因子: 3.2
作者:
W. .. Wang;Sanboh Lee;J. R. Chen
通讯作者: W. .. Wang;Sanboh Lee;J. R. Chen
Si 和 Ge 阳极锂化过程中的强动力学-应力耦合
DOI: 10.1016/j.eml.2014.11.008
发表时间: 2015-03
影响因子: 4.7
作者:
Wentao Liang;Xu Guo;Chong-Min Wang;Sulin Zhang
通讯作者: Sulin Zhang
DOI: 10.1016/j.eml.2016.08.002
发表时间: 2016-12
影响因子: 4.7
作者:
Yan Wang;Yu-jie Pu;Zengsheng Ma;Yong Pan;Chang Q. Sun
通讯作者: Yan Wang;Yu-jie Pu;Zengsheng Ma;Yong Pan;Chang Q. Sun
DOI: 10.1021/nn503564r
发表时间: 2014-09-01
期刊: ACS NANO
影响因子: 17.1
作者:
Sandu, Georgiana;Brassart, Laurence;Vlad, Alexandru
通讯作者: Vlad, Alexandru
DOI: 10.1149/1.2220724
发表时间: 1993-07
影响因子: 3.9
作者:
Yufei Chen;J. Evans
通讯作者: Yufei Chen;J. Evans