Research Progress in Treatment of Spent Cathode Materials for Lithium-Ion Batteries by Combined Process
Received:April 04, 2023   Revised:April 11, 2023   Accepted:April 14, 2023      Published Online:August 11, 2023
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DOI:doi:10.3969/j.issn.1007-7545.2023.09.002
KeyWord:combined treatment; spent lithium-ion batteries; cathode material; recovery
              
AuthorInstitution
LUO Wenzhong 赣州市生态环境技术服务中心
NIE Siyi 江西理工大学
QUAN Wencan 江西理工大学
YAN Kang 江西理工大学
WANG Ruixiang 江西理工大学
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Abstract:
      With the rapid change of portable electronic products and the rapid development of the new energy power automobile industry, a large number of lithium-ion batteries ushered in retirement, the recycling is imminent. The combined process of roasting-water leaching improves the problems of high energy consumption and difficult effective separation of lithium in the traditional pyrometallurgical smelting process, also avoids the problems of large reagent consumption and wastewater treatment in the wet recovery process. It will be the future trend and direction of the development of effective treatment and recovery process for failed lithium-ion battery cathode materials. The research progress of current combined process for the treatment of failed lithium-ion battery cathode materials was reviewed. It is mainly divided into two categories: reduction roasting and salinization roasting. The salinization roasting process greatly reduces the required roasting temperature. According to the different additives, it can be subdivided into sulfation roasting, chlorination roasting and nitrification roasting. By comparing and analyzing the advantages and disadvantages of different combined processes, the future development trend and prospect of the combined process were summarized, which provides a reference for the future development of a cleaner and more efficient recovery process.
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