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化化学促进了超薄用于可扩展的预化

Kuangyu Wang¹, Cheng Yang^1,2, Ruichuan Yuan¹

¹State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China.

|February 5, 2024

概括

研究人员开发了一种具有成本效益的方法来生产用于高能量密度电池的超薄 (UTL). 这种技术显著提高了电池的性能,提高了整个电池的初始库伦比克效率和能量密度.

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:

预化对于高能量密度电池至关重要.
超薄 (UTL) 是一个有前途的先化试剂.
以高效和成本效益的方式制造UTL仍然是一个挑战.

研究的目的:

开发一种可调节,高效和具有成本效益的UTL制造方法.
为了准备使用UTL的预电极.
为了评估电池电池的性能提升.

主要方法:

在PVDF修改的铜电流采集器上涂上化的叶片涂层,以产生具有可调厚度 (1.510μm) 的UTL.
转印方法用于制造预化石墨和Si-C复合电极.
组装和测试半电池和完整电池 (Li(NiCoMn) _1/3O₂和LiFePO₄). 组装和测试半电池和完整电池 (Li(NiCoMn) _1/3O₂和LiFePO₄).

主要成果:

实现了可控制厚度从1.5到10微米的UTL.
准备的预制石墨和Si-C复合电极具有高的初始库伦比效率 (99.60%和99.32%在半电池).
在完整的细胞中,已证明能量密度增加了13.1% (Li(NiCoMn) _1/3O₂) 和23.6% (LiFePO₄).

结论:

开发的叶片涂层方法为UTL生产提供了可调节和具有成本效益的途径.
使用这种UTL方法制造的预化电极显示出优越的电化学性能.
这一进步有助于开发下一代高能量密度电池.

关键词:

性性是一种性性.离子电池是一种离子电池.在化前进行化.表面的修改表面的修改超薄的是超薄的.

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