通过顺序的电化学双氧化和浸泡放松来最大限度地提高能源利用率和泄漏效率
Weixu Zhong1, Xiaosong Gu1, Xuezhen Feng1
1School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, China.
Nature communications
|February 24, 2026
概括
本研究介绍了一种节能电化学双氧化 (EDO) 方法,用于从废旧电池中回收. 这两阶段的工艺显著降低了能源消耗,同时实现了高泄漏效率.
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
- 可持续化学 可持续化学
背景情况:
- 全球对的需求不断增加,需要有效回收使用的离子电池.
- 目前的泄漏方法通常具有高能耗和环境影响.
- 使用过的三元离子电池阴极 (例如NCM) 是回收的关键资源.
研究的目的:
- 开发一种高能效的两阶段连续氧化方法,用于从使用过的NCM阴极中出.
- 在电化学双氧化 (EDO) 过程中优化电能消耗.
- 为了阐明泄漏和能源减少的机制.
主要方法:
- 提出了一种两阶段的连续氧化方法:电化学双氧化 (EDO),然后是浸泡放松.
- 将该方法应用于商用和使用过的LiNi1/3Co1/3Mn1/3O2 (NCM111) 阴极.
- 进行了关于晶格氧气转换和电能配置文件的综合机制研究.
主要成果:
- 实现了高泄漏效率:商用NCM111的99.87%和使用过的NCM111.12的98.12%.
- 与传统方法相比,电能消耗减少了49.78%.
- 发现EDO诱导了晶格氧化转化,促进了连续的泄漏.
结论:
- 拟议的两阶段EDO方法对于从使用过的NCM电池中回收非常有效和节能.
- 涉及格子氧气转换的机制是提高漏效率和降低能耗的关键.
- 这种方法为从离子电池废物中工业回收关键金属提供了可持续的途径.
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