低温环境下全固态锂离子电池研究Research on All-Solid-State Lithium-ion Battery in Low Temperature Environment
顾伟,曹征领,岳灵平,曹元成
GU Wei,CAO Zhengling,YUE Lingping,CAO Yuancheng
摘要(Abstract)：
针对低温环境下全固态锂离子电池的失效机制及高、低温性能展开研究,分析全固态电池关键材料对电池化学性能的影响、电极结构的优化等。分析结果表明,通过对全固态电池关键材料的合理设计与选择、电极结构的优化,可以提高全固态电池在低温环境下的容量保持率和倍率性能。最后,设计研制样机,在相同条件下对比所设计的全固态电池与常规全固态电池的性能,实验结果与理论分析具有良好的一致性,验证了理论分析与设计的正确性。
This paper focuses on the study of the failure mechanism and high-low temperature performance of the all-solid-state lithium-ion battery in low temperature environment and analyzes the influence of key materials of all-solid-state battery on its chemical performance and the optimization of the electrode structure.Studies have shown that by rationally design and selection of key materials for all-solid-state battery and electrode structure optimization, the capacity retention and rate performance of the all-solid-state battery can be improved in low temperature environment. Finally, by designing and developing a prototype, the conventional all-solid-state battery is compared with the designed all-solid-state battery under the same condition. The experimental results are in good agreement with the theoretical analysis, which verifies the correctness of the theoretical analysis and design.
关键词(KeyWords)：
全固态锂离子电池;MG11碳微球;NCM523;固态电解质
all-solid-state lithium-ion battery;MG11 carbon microspheres;NCM523;solid electrolyte
基金项目(Foundation):
作者(Author):
顾伟,曹征领,岳灵平,曹元成
GU Wei,CAO Zhengling,YUE Lingping,CAO Yuancheng
DOI: 10.19585/j.zjdl.202104009
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