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适应局部异位结构增强使用过的离子电池阴极的再生

Siyu Zhang^1,2, Yangyang Liu³, Gen Chen²

¹School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan, 410083, P. R. China.

Advanced materials (Deerfield Beach, Fla.)

|September 15, 2025

概括

研究人员开发了一种富含的新型深溶剂,用于再生耗尽的离子电池. 这种方法修复了阴极晶体结构,提高了电化学性能,并实现了有效的电池循环利用.

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
化学工程是化学工程的重要组成部分.

背景情况:

使用过的离子电池 (LIB) 的直接再生对于可持续性至关重要.
恢复LIB阴极的降解晶体结构是回收的重大挑战.

研究的目的:

开发一种新型的深溶解溶剂 (DES) 用于结构向再生使用的氧化物 (LCO) 阴极.
调查DES内部现场结构修复的机制.

主要方法:

合成了一种新的富含的深度浸泡溶剂.
DES诱导了一个自适应的局部外阴结构 (ALES),促进了阴极板的分离和元素的补充.
分析了子宫外和对Li+扩散和结构稳定性的影响.

主要成果:

通过调节离子相互作用,ALES环境促进了Li+扩散,并稳定了LCO结构.
在现场结构修复恢复了消耗的LCO的结晶性和电化学性能.
复原LCO在0.2°C时表现出183.08mAhg-1的可逆容量,在0.5°C200次循环后87.01%的保留率.

结论:

开发的富的DES有效地解决了LIB再生中的结构恢复瓶.
这种方法为使用过的LIBs的高性能回收提供了一个有希望的途径.
这些发现为先进的材料回收和可持续的储能解决方案铺平了道路.

关键词:

适应性的本地化异胎结构.深层欧特克溶剂溶剂的使用直接再生再生的直接再生使用过的离子电池.

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