1. “Water-in-Salt” electrolyte enabled LiMn2O4/TiS2 Lithium-ion batteries.
- Author
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Sun, Wei, Suo, Liumin, Wang, Fei, Eidson, Nico, Yang, Chongyin, Han, Fudong, Ma, Zhaohui, Gao, Tao, Zhu, Min, and Wang, Chunsheng
- Subjects
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LITHIUM-ion batteries , *AQUEOUS electrolytes , *ENERGY density , *ELECTROCHEMICAL electrodes , *X-ray diffraction , *EQUIPMENT & supplies - Abstract
High electrochemical reversibility of the TiS 2 anode in “Water-in-Salt” electrolyte (21 m LiTFSI in H 2 O) is demonstrated for the first time. The wide electrochemical window and low chemical activity of H 2 O in the “Water-in-Salt” electrolyte not only significantly enhanced the electrochemical reversibility of TiS 2 but also effectively suppressed the hydrolysis side reaction in the aqueous electrolyte. Paired with a LiMn 2 O 4 cathode, the LiMn 2 O 4 /TiS 2 full cell delivers a relatively high discharge voltage of 1.7 V and an energy density of 78 Wh kg − 1 as well as a satisfactory rate performance. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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