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设计原则,用于有效的水热再化消耗的铁酸盐

Zhaoyi Jiang¹, Zhihan Xu¹, Lun Li¹

¹China-UK Low Carbon College, Shanghai Jiao Tong University, Shanghai 200240, China.

ACS applied materials & interfaces

|January 8, 2025

概括

使用过的铁酸盐 (s-LFP) 阴极的直接再生通过一种新的热水方法得到了增强. 这种绿色方法有效地补充,显著恢复电池容量,并促进可持续的回收利用.

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
可持续化学可持续化学

背景情况:

使用过的铁酸盐 (s-LFP) 阴极的直接再生是一个关键的回收策略.
水性重新化比固态方法具有优势,包括更低的能源消耗和均的补充.
液相补充配方的标准化仍然是一个挑战.

研究的目的:

建立用于s-LFP的热液再结合配方的设计原则.
为了实现高效的重新化和再生LFP产品的高产量.
开发一种经济和可持续的方法来回收LFP电池.

主要方法:

以电化学技术为指导的水热再制配方的开发.
使用硫酸 (H2SO3) 作为还原剂和氧化 (LiOH) 作为源.
在温和的热水条件下 (90°C) 进行重新化.

主要成果:

在90°C时实现s-LFP的完全重新化.
高产率的relithiated LFP产品只有3.1%的质量损失.
恢复的LFP恢复了大约29%的原始容量,并保持了98.9%的容量.

结论:

为s-LFP开发了一种经济高效的水热再化方法.
这种方法代表了绿色和可持续电池回收的重大进步.
这些发现为使用过的LFP阴极材料的再生设定了基准.

关键词:

设计原则的relithiation的设计原则直接热水法是一种直接的热水法.电化学技术电化学技术电化学技术使用过的铁电池回收回收利用过的铁电池回收可持续的储能储能是一种可持续的储能方式.

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