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从使用水作为唯一溶剂的NMC电池中回收材料

Anirudha Karati¹, Prashant P Gargh², Sabyasachi Paul²

¹Ames National Laboratory of US DOE, Ames, IA, 50011, USA.

Journal of environmental management

|July 10, 2024

概括

本研究提出了一种环保方法,用于回收-- (NMC) 电池. 它在电化学度后使用水回收,使所有电池组件的回收成为可能.

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
环境科学环境科学

背景情况:

铜 (NMC) 电池对于储能至关重要,但也带来了回收的挑战.
需要有效且对环境无害的回收方法来从废弃的NMC电池中回收有价值的材料.

研究的目的:

为大容量NMC电池开发一种对环境无害的回收方法.
研究的电化学度及其随后使用水的回收.
评估所有囊细胞组件的恢复情况.

主要方法:

在NMC袋式电池的阳极上的电化学度.
循环细胞的拆卸和阳极浸泡在脱离离子水中,以溶解盐.
使用X射线光电子光谱 (XPS) 分析回收的盐.

主要成果:

在5C充电速率下观察到最大的回收.
使用脱离离子水从阳极中回收盐,产生石墨和铜.
高C率循环产生了氧化和过氧化,而低C率产生了碳酸.
所有囊细胞组件 (,石墨,铜,,分离器,阴极活性物质) 都被回收.

结论:

开发的方法为NMC电池回收提供了一个对环境无害的方法.
以水为基础的回收后的电化学度对和其他组件回收有效.
回收的盐的组成取决于电池循环速率.

关键词:

快速充电可以快速充电.是的组成部分.离子电池是一种离子电池.这是NMC NMC的NMC.回收回收是回收的过程.水水水水水,这是一个很好的方法.

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