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用于离子电池的阳极结合剂的应用和开发

Huilin Shen¹, Qilin Wang¹, Zheng Chen¹

¹Key Laboratory of High-Performance Plastics, Ministry of Education, National & Local Joint Engineering Laboratory for Synthesis Technology of High-Performance Polymers, College of Chemistry, Jilin University, Xiuzheng Road 1788, Changchun 130012, China.

Materials (Basel, Switzerland)

|June 28, 2023

概括

聚合物粘合剂可以稳定离子电池中的阳极,克服限制其性能和寿命的体积扩张问题. 这项研究审查了改善阳极稳定性的方法,以获得更好的电池.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
储能储能储能储能储能储能

背景情况:

(Si) 为离子电池 (LIB) 阳极提供了高的理论容量,但在循环过程中遭受了~300%的体积膨胀.
这种扩张导致结构退化,容量迅速衰减,并限制了阳极的实际应用.

研究的目的:

审查Si基阳极的降解机制.
探索减轻Si体积膨胀的方法.
突出聚合物结合剂在提高Si阳极稳定性和LIB性能方面的作用.

主要方法:

关于Si阳极降解的文献综述.
对管理Si体积扩张的策略进行分析.
检查聚合物粘合剂设计以提高电极结构完整性.

主要成果:

确定了阳极的关键降解途径.
讨论了各种方法来适应或缓冲Si体积变化.
展示了定制的聚合物结合剂如何提高循环稳定性和能量密度保留.

结论:

在电化学循环过程中,聚合物结合剂对于保持Si阳极结构完整性至关重要.
有效的绑定器设计是一个有前途的策略,以释放下一代LIB中Si阳极的潜力.

关键词:

离子电池 (LIB) 是一种聚合物粘合剂聚合物粘合剂阳极是一种阳极.

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