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Lin W, Zuo X, Ma C, Xia P, Bian H, Liang G, Hu J, Song Z, Mao W, Bao K. Sn 0.1-Li 4Ti 5O 12/C as a promising cathode material with a large capacity and high rate performance for Mg-Li hybrid batteries. Dalton Trans 2024; 53:2055-2064. [PMID: 38179885 DOI: 10.1039/d3dt02502k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
The development prospects of conventional Li-ion batteries are limited by the paucity of Li resources. Mg-Li hybrid batteries (MLIBs) combine the advantages of Li-ion batteries and magnesium batteries. Li+ can migrate rapidly in the cathode materials, and the Mg anode has the advantage of being dendrite-free. In this study, a type of Li4Ti5O12 composite material doped with Sn4+ and a conductive carbon skeleton (Li4Ti4.9Sn0.1O12/C, Sn0.1-LTO/C) was prepared by a simple one-pot sol-gel method. The doped Sn4+ replaces part of Ti4+ in the crystal lattice, which makes Ti3+ require charge compensation, thus improving the ionic conductivity. The intervention of the conductive carbon skeleton further improves the conductivity of the Sn0.1-LTO/C composite material. The performance of Sn0.1-LTO/C as the cathode of MLIBs is explored. The initial discharge capacity was 159.1 mA h g-1 at 0.5 C, and it was maintained at 105 mA h g-1 even after 500 cycles. The excellent electrochemical performance is attributed to a small amount of Sn doping and the involvement of the conductive carbon skeleton, which indicated that the Sn0.1-LTO/C composite material provides great potential application in MLIBs.
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Affiliation(s)
- Wei Lin
- Resource Environment & Clean Energy Research Center, School of chemistry and chemical engineering, Jiangsu University of Technology, Changzhou 213001, China.
| | - Xingwei Zuo
- Resource Environment & Clean Energy Research Center, School of chemistry and chemical engineering, Jiangsu University of Technology, Changzhou 213001, China.
| | - Chao Ma
- Resource Environment & Clean Energy Research Center, School of chemistry and chemical engineering, Jiangsu University of Technology, Changzhou 213001, China.
| | - Peng Xia
- Resource Environment & Clean Energy Research Center, School of chemistry and chemical engineering, Jiangsu University of Technology, Changzhou 213001, China.
| | - Haowei Bian
- Resource Environment & Clean Energy Research Center, School of chemistry and chemical engineering, Jiangsu University of Technology, Changzhou 213001, China.
| | - Guobing Liang
- Resource Environment & Clean Energy Research Center, School of chemistry and chemical engineering, Jiangsu University of Technology, Changzhou 213001, China.
| | - Jianbing Hu
- Resource Environment & Clean Energy Research Center, School of chemistry and chemical engineering, Jiangsu University of Technology, Changzhou 213001, China.
| | - Zhongcheng Song
- Resource Environment & Clean Energy Research Center, School of chemistry and chemical engineering, Jiangsu University of Technology, Changzhou 213001, China.
| | - Wutao Mao
- Resource Environment & Clean Energy Research Center, School of chemistry and chemical engineering, Jiangsu University of Technology, Changzhou 213001, China.
| | - Keyan Bao
- Resource Environment & Clean Energy Research Center, School of chemistry and chemical engineering, Jiangsu University of Technology, Changzhou 213001, China.
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