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Recycling method of waste lithium manganate battery
The invention discloses a recycling method of a waste lithium manganate battery. The method comprises the following steps: calcining the waste lithium manganate battery at high temperature in a closedinert atmosphere; cooling and taking out residues; crushing, screening and magnetically separating residues to obtain lithium manganate coarse powder; obtaining carbon powder and lithium manganate fine powder from the lithium manganate coarse powder through an airflow sorting device, adding a manganese source, a lithium source and an additive into the lithium manganate fine powder, mixing the manganese element, the lithium element and doped ions according to the molar ratio of 2:(1-1.08):(0-0.1), placing the mixture in an oxygen atmosphere for high-temperature sintering, and obtaining the lithium manganate material. According to the method, the waste lithium manganate battery is subjected to high-temperature calcination in a closed environment; tail gas treatment is facilitated, the pollution problem in the waste lithium battery disassembling process is solved, the production efficiency is improved, control substances such as acid and alkali do not need to be used in the subsequent production process, the lithium manganate positive electrode material can be regenerated only by adding raw materials and additives, and comprehensive utilization and clean production of the waste lithium manganate positive electrode material are achieved.
本发明公开了一种废锰酸锂电池的回收再生方法，通过将废旧锰酸锂电池在密闭式惰性气氛中进行高温煅烧，冷却后取出剩余物，剩余物通过粉碎筛分和磁选后得到锰酸锂粗粉，锰酸锂粗粉通过气流分选装置得到碳粉和锰酸锂精粉，在锰酸锂精粉中加入锰源、锂源和添加剂，按锰元素：锂元素：掺杂离子摩尔比2:1～1.08:0～0.1进行配比混合，将混合物置于氧气气氛中高温烧结得到锰酸锂材料。本发明通过对废锰酸锂电池在密闭环境中进行高温煅烧，方便了尾气处理，解决了废锂电池拆解过程的污染问题，提高生产效率，且后续的生产过程不需要用酸和碱等管控物质，仅通过添加原料和添加剂便可再生得到锰酸锂正极材料，实现了废旧锰酸锂正极材料的综合利用及清洁生产。
Recycling method of waste lithium manganate battery
The invention discloses a recycling method of a waste lithium manganate battery. The method comprises the following steps: calcining the waste lithium manganate battery at high temperature in a closedinert atmosphere; cooling and taking out residues; crushing, screening and magnetically separating residues to obtain lithium manganate coarse powder; obtaining carbon powder and lithium manganate fine powder from the lithium manganate coarse powder through an airflow sorting device, adding a manganese source, a lithium source and an additive into the lithium manganate fine powder, mixing the manganese element, the lithium element and doped ions according to the molar ratio of 2:(1-1.08):(0-0.1), placing the mixture in an oxygen atmosphere for high-temperature sintering, and obtaining the lithium manganate material. According to the method, the waste lithium manganate battery is subjected to high-temperature calcination in a closed environment; tail gas treatment is facilitated, the pollution problem in the waste lithium battery disassembling process is solved, the production efficiency is improved, control substances such as acid and alkali do not need to be used in the subsequent production process, the lithium manganate positive electrode material can be regenerated only by adding raw materials and additives, and comprehensive utilization and clean production of the waste lithium manganate positive electrode material are achieved.
本发明公开了一种废锰酸锂电池的回收再生方法，通过将废旧锰酸锂电池在密闭式惰性气氛中进行高温煅烧，冷却后取出剩余物，剩余物通过粉碎筛分和磁选后得到锰酸锂粗粉，锰酸锂粗粉通过气流分选装置得到碳粉和锰酸锂精粉，在锰酸锂精粉中加入锰源、锂源和添加剂，按锰元素：锂元素：掺杂离子摩尔比2:1～1.08:0～0.1进行配比混合，将混合物置于氧气气氛中高温烧结得到锰酸锂材料。本发明通过对废锰酸锂电池在密闭环境中进行高温煅烧，方便了尾气处理，解决了废锂电池拆解过程的污染问题，提高生产效率，且后续的生产过程不需要用酸和碱等管控物质，仅通过添加原料和添加剂便可再生得到锰酸锂正极材料，实现了废旧锰酸锂正极材料的综合利用及清洁生产。
Recycling method of waste lithium manganate battery
一种锰酸锂废旧电池的回收再生方法
ZHENG TIEJIANG (author) / JIANG GUOQIANG (author) / CAO SHENGPING (author) / CHEN DIANHUA (author) / TANG YI (author) / JIANG HUAFENG (author) / CHEN JIAJIE (author)
2020-04-14
Patent
Electronic Resource
Chinese
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