A battery with sulphur cathode and lithiated graphite anode based on Lithium shuttle reaction. (28th July 2016)

• Record Type: Journal Article
• Authors: Xu, Feng; Li, Xiang; Xiao, Fei; Xu, Shengzhao; Zhang, Xueping; He, Ping; Zhou, Haoshen
• Is Part Of: Materials technology. Volume 31:Number 9(2016)
• Page Start: 517
• Page End: 520
• Publication Date: 2016-07-28
• Subjects: Sulphur -- Li2S -- Prelithiated graphite -- Li-ion batteries -- Li-S batteries; Materials -- Periodicals; Materials science -- Periodicals; Materials -- Technological innovations -- Periodicals; 620.1105
• DOI: 10.1080/10667857.2016.1196564
• Languages: English
• ISSNs: 1066-7857

Abstract

Abstract: Current commercial Li-ion batteries cannot meet the requirement of electric vehicles for long-distance transportation due to the limitation capacity of cathodes materials. Sulphur is a promising candidate as its theoretical specific capacity is as high as 1675 mAh g −1 . In this work, a design of new Li-ion battery is reported. Electrochemical method is applied to prelithiate graphite, and the anode is coupled with sulphur cathodes to assemble the corresponding cell. The cell shows a high initial charge capacity of 1113 mAh g −1 at 0.2C and obtains a large specific energy of 485 Wh kg −1 . Also, prelithiated sulphur (Li2 S) is able to assemble Li2 S/graphite cell. The cell reaches 1226 mAh g −1 in the first charge process and the specific energy is as large as 390 Wh kg −1 . Both cells show large specific energy and have considerable potential for practical application.