An environmentally friendly and low-cost catalyst for Li–CO2 batteries based on Co recovered from waste lithium-ion batteries. Issue 3 (1st February 2023)

• Record Type: Journal Article
• Authors: Wu, Hongkun; Wang, Zhen; Zeng, Xiaoyuan; Fei, Zitong; Gu, Yang; Ding, Kai; Dong, Peng; Zhang, Yingjie; Meng, Qi
• Is Part Of: Ceramics international. Volume 49:Issue 3(2023)
• Page Start: 4153
• Page End: 4159
• Publication Date: 2023-02-01
• Subjects: Recycle Co resources -- CO2 capture -- Low cost; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2022.09.297
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: With the use of lithium batteries increasing year by year, resulting in a large number of waste lithium-ion batteries generated, bringing pressure to the ecological system while also causing a waste of Co resources. Although Co-based catalysts are also of interest in the Li–CO2 system, no research has been reported on the preparation of catalysts for value-added utilization of recovered Co. In this paper, Li–CO2 batteries with Co3 O4 /CNT cathodes were prepared by environmentally friendly hydrothermal method employing cobalt oxalate recycled from waste lithium-ion batteries as a Co source in combination with commercial CNT. Unlike traditional noble metal and transition metal-based catalysts, which are expensive and complicated, this work can further reduce the cost of batteries by recycling valuable Co sources from waste lithium-ion batteries. As a result, the battery has the discharge capacity of 2728 mAh g −1 at a current density of 100 mA g −1 . Not only that, but it can reach more than 85 cycles at a limited capacity of 400 mAh g −1 .