基于应力场的锂离子电池正极多尺度失效研究
陈莹1(
), 栾伟玲1(), 陈浩峰1,2(), 朱轩辰2
), 栾伟玲1(), 陈浩峰1,2(), 朱轩辰2
Multi-scale Failure Behavior of Cathode in Lithium-ion Batteries Based on Stress Field
CHEN Ying1(), LUAN Weiling1(), CHEN Haofeng1,2(), ZHU Xuanchen2
), LUAN Weiling1(), CHEN Haofeng1,2(), ZHU Xuanchen2
图1. NCM523循环后发生多尺度损伤
Fig. 1. Multi-scale damage of NCM523 after electrochemical cycles
(a) In-particle cracks; (b) Particle breakage; (c) Large cracks in electrode material; (d) Delamination between active material and current
