期刊
ACS APPLIED MATERIALS & INTERFACES
卷 12, 期 50, 页码 55795-55808出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.0c15144
关键词
lithium-ion batteries; Li plating extreme fast charging; battery safety; porous composite electrode; mesoscale modeling; electrode microstructure; secondary phase morphology
资金
- U.S. DOE Office of Vehicle Technology Extreme Fast Charge Cell Evaluation of LithiumIon Batteries (XCEL) Program
- U.S. Department of Energy (DOE) [DE-AC36-08GO28308]
Metallic lithium deposition on graphite anodes is a critical degradation mode in lithium-ion batteries, which limits safety and fast charge capability. A conclusive strategy to mitigate lithium deposition under fast charging yet remains elusive. In this work, we examine the role of electrode microstructure in mitigating lithium plating behavior under various operating conditions, including fast charging. The multilength scale characteristics of the electrode microstructure lead to a complex interaction of transport and kinetic limitations that significantly governs the cell performance and the occurrence of Li plating. We demonstrate, based on a comprehensive mesoscale analysis, that the performance and degradation can be significantly modulated via systematic design improvements at the hierarchy of length scales. It is found that the improvement in kinetic and transport characteristics achievable at disparate scales can dramatically affect Li plating propensity.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据