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首页> 外文期刊>RSC Advances >Recycling and synthesis of LiNi1/3Co1/3Mn1/3O2 from waste lithium ion batteries using d,l-malic acid
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Recycling and synthesis of LiNi1/3Co1/3Mn1/3O2 from waste lithium ion batteries using d,l-malic acid

机译：使用D，L-苹果酸的废锂离子电池从废锂离子电池中回收和合成Lini1 / 3Co1 / 3Mn1 / 3O2

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摘要

If waste LIBs are disposed of in landfill sites, soil contamination will ensue from leakage of the organic electrolyte, and the heavy metals ions contained in the batteries would pose a threat to the environment. A new process for recycling valuable metal ions from waste lithium-ion batteries (LIBs) is introduced herein. D , L -malic acid was used as both a leaching reagent and chelating agent. By adjusting the metal ion ratio and pH of leachate, a new cathode material of LiNi _(1/3) Co _(1/3) Mn _(1/3) O _(2) for lithium ion batteries through a sol–gel process without other chelating reagents was synthesized. Electrochemical tests showed the initial charge and discharge capacity of the regenerated material to be 152.9 mA h g ~(?1) and 147.2 mA h g ~(?1) (2.75–4.25 V, 0.2C), respectively. The capacity retention at the 100th cycle remains 95.06% of the original value (2.75–4.25 V, 0.5C). Results indicated that the LiNi _(1/3) Co _(1/3) Mn _(1/3) O _(2) produced from waste LIBs possessed good electrochemical properties.
机译：如果废物Libs在垃圾填埋场中处理，则土壤污染将来自有机电解质的泄漏，并且电池中包含的重金属离子会对环境构成威胁。本文介绍了从废锂离子电池（LIBS）中回收有价值金属离子的新方法。 D，L-Malic acid用作浸出试剂和螯合剂。通过调节金属离子比和渗滤液的pH，通过溶胶 - 锂离子电池的LINI _（1/3）CO_（1/3）MN _（1/3）Mn _（1/3）O _（2）的新阴极材料。没有合成没有其他螯合试剂的凝胶过程。电化学试验显示再生材料的初始电荷和放电容量为152.9 mA H g〜（α1）和147.2 mA H g〜（Δ1）（2.75-4.25V，0.2℃）。第100次循环的容量保留仍然是原始值的95.06％（2.75-4.25V，0.5℃）。结果表明，由废诵法制备的LINI _（1/3）CO _（1/3）Mn _（2）具有良好的电化学性能。

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