通过控制过度放电,有效地非侵入性地使耗尽的铁酸盐电池复原
Jinu Song1, Yujie Chen1, Nianji Zhang1
1School of Chemical Engineering, The University of Adelaide, Adelaide, South Australia, Australia.
Advanced materials (Deerfield Beach, Fla.)
|February 10, 2026
概括
控制过度放电 (COD) 通过分解相间层来使消耗的铁酸盐 (LFP) 电池复原. 这种可持续的回收方法可以恢复容量,延长电池的寿命,减少对环境的影响.
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
- 可持续能源 可持续能源
背景情况:
- 回收铁酸盐 (LFP) 电池由于金属价值低和能源密集型工艺而面临经济和环境障碍.
- 对LFP电池的直接回收方法受到严格的杂质控制和操作复杂性的限制,阻碍了可扩展性.
研究的目的:
- 引入一种新的,非侵入性的方法,用于再生耗尽的LFP (S-LFP) 电池.
- 评估控制过度放电 (COD) 协议在恢复电池性能和减少环境影响方面的有效性.
主要方法:
- 对S-LFP电池应用了一个控制过度放电 (COD) 协议.
- 该方法选择性地分解固体电解质间相,释放被困的Li+并减少Li/Fe抗现场缺陷.
- 在COD过程中,铜溶解同时被抑制.
主要成果:
- 该COD协议恢复了9.56%的丢失的电池容量.
- 电池寿命延长了200多个周期.
- 与金回收相比,COD将温室气体排放量减少到168gkg-1和能源消耗减少到3MJkg-1.
结论:
- 控制过度放电 (COD) 为S-LFP电池回收提供了一种可持续和可扩展的方法.
- 这种非侵入性策略有效地使电池复苏,提高容量和寿命.
- 与传统的回收工艺相比,COD方法的环境足迹明显较小.
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