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扩散应力诱导的锂离子电池失效机理研究进展
王亚楠1,2,3(),李华1,2,3,王正坤1,厉青峰1,练晨1,何鑫1
Progress on Failure Mechanism of Lithium Ion Battery Caused by Diffusion Induced Stress
WANG Yanan1,2,3(),LI Hua1,2,3,WANG Zhengkun1,LI Qingfeng1,LIAN Chen1,HE Xin1

图7. (a)双相脱嵌机制的球形颗粒的脱锂过程[35]; (b)双相脱嵌机制的球形颗粒锂化过程中的表面切向应力[36], 其中空心圆, 实心圆, 星号和星形分别代表颗粒的初始无量纲尺寸为0.01, 0.1, 1.0和10.0; (c)临界尺寸L与放电倍率的关系[42]

Fig. 7. (a) Delithiation process of spherical particle with two-phase deintercalation mechanism[35]; (b) Surface tangential stress of spherical particle during lithiation process with two-phase deintercalation mechanism[36], the hollow circle, solid circle, asterisk and star represent the initial dimensionless sizes of the particles as 0.01, 0.1, 1.0 and 10.0, respectively; (c) Relationship between critical dimension and discharge rate[42]