Optimized Li and Fe recovery from spent lithium-ion batteries via a solution-precipitation method

被引：198

作者：

Zheng, Rujuan ^{[1
,2
]}

Zhao, Li ^{[1
]}

Wang, Wenhui ^{[1
]}

Liu, Yuanlong ^{[1
]}

Ma, Quanxin ^{[1
]}

Mu, Deying ^{[1
]}

Li, Ruhong ^{[1
]}

Dai, Changsong ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Chem Engn & Technol, Harbin 150001, Peoples R China

[2] Qiqihar Univ, Coll Chem & Chem Engn, Qiqihar 161006, Peoples R China

来源：

RSC ADVANCES | 2016年 / 6卷 / 49期

基金：

中国国家自然科学基金;

关键词：

ELECTROCHEMICAL PERFORMANCE; CATHODE; LICOO2;

D O I：

10.1039/c6ra05477c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new process is optimized and presented for the recovery and regeneration of LiFePO4 from spent lithiumion batteries (LIBs). The recycling process reduces the cost and secondary pollution caused by complicated separation and purification processes in spent LIB recycling. Amorphous FePO4 center dot 2H(2)O was recovered by a dissolution-precipitation method from spent LiFePO4 batteries. The effects of different surfactants (i.e. CTAB, SDS and PEG), which were added to the solution on the recovered FePO4 center dot 2H(2)O, were investigated. Li2CO3 was precipitated by adding Na2CO3 to the filtrate. Then the LiFePO4/C material was synthesized by a carbon thermal reduction method using recycled FePO4 center dot 2H(2)O and Li2CO3 as the Fe, P, and Li sources. The as-prepared LiFePO4/C shows comparable electrochemical performance to that of commercial equivalents.

引用

页码：43613 / 43625

页数：13

共 25 条

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