Closed-Loop Utilization of Molten Salts in Layered Material Preparation for Lithium-Ion Batteries

被引：0

作者：

Chen, Zhanjun ^{[1
,2
]}

Wang, Tao ^{[1
,3
]}

Yu, Haijun ^{[4
]}

Guo, Jun ^{[2
]}

Zhong, Hongbin ^{[2
]}

Hu, Chuanyue ^{[2
]}

Zhao, Ruirui ^{[1
]}

Chen, Hongyu ^{[1
]}

机构：

[1] School of Chemistry, Engineering Research Center of MTEES (Ministry of Education), South China Normal University, Guangdong,Guangzhou, China

[2] Hunan Provincial Key Laboratory of Fine Ceramics and Powder Materials, School of Materials and Environmental Engineering, Hunan University of Humanities, Science and Technology, Loudi,Hunan, China

[3] School of Materials Science and Engineering, Dongguan University of Technology, Dongguan,Guangdong, China

[4] Guangdong Brunp Recycling Technology Co., Ltd, Foshan,Guangdong, China

来源：

Frontiers in Energy Research | 2021年 / 8卷

关键词：

Molten-salt assisted solid-state synthesis is considered a promising method in obtaining layer-structured cathodes for lithium-ion batteries with homogeneous elemental distribution and controllable morphologies. However; drawbacks like resource wasting which have arisen from redundant salt removal after sintering greatly hinder the broader application of this technique. In this paper; a closed-loop utilization of molten salts is proposed for the first time with specific electrochemical properties of the products studied. Results confirm the feasibility of this strategy; and that with only replenishing LiOH; the recycled LiOH-LiCl molten salts can be successfully reused into another LiNi0.5Co0.2Mn0.3O2 synthesis; which exhibits almost equal electrochemical performance to the product using fresh molten salts. We believe this research can provide significant insight in guiding green and environmental-friendly preparation methods involving molten salts. © Copyright © 2021 Chen; Wang; Yu; Guo; Zhong; Hu; Zhao and Chen;

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