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Microstructure Study on Initial Lithiation/Delithiation Cycle of Crystalline Silicon Wafer—ADDENDUM
Microscopy and Microanalysis ( IF 2.8 ) Pub Date : 2020-02-01 , DOI: 10.1017/s1431927619015290
Jun Liu , Taeho Yoon , Chunmei Ban , Mowafak Al-Jassim

Silicon (Si) is a promising next-generation anode material for lithium-ion batteries due to its large theoretical specific capacities of 3579 mAh g. The huge volume expansion of Si during the electrochemical cycling results in cracks and phase transformations between crystalline and amorphous silicon [1]. Although there have been many studies on the change in the mechanical properties and crack behavior during the cycling, it is still not clear how cracks nucleate and propagate at the initial lithiation/delithiation cycle.

中文翻译:

晶体硅片初始锂化/脱锂循环的微观结构研究——附录

硅 (Si) 是一种很有前途的下一代锂离子电池负极材料,因为其理论比容量高达 3579 mAh g。Si 在电化学循环过程中的巨大体积膨胀导致晶体和非晶硅之间出现裂纹和相变 [1]。尽管已经有很多关于循环过程中机械性能和裂纹行为变化的研究,但仍不清楚裂纹在初始锂化/脱锂循环中如何成核和扩展。
更新日期:2020-02-01
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