期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 55, 期 41, 页码 12768-12772出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201606508
关键词
aqueous electrolyte; energy storage; sodium-ion battery; symmetric battery
资金
- US Department of Energy, Office of Basic Energy Sciences [DE-SC0005397]
- Robert A. Welch Foundation [F-1066]
A symmetric sodium-ion battery with an aqueous electrolyte is demonstrated; it utilizes the NASICON-structured Na3MnTi(PO4)(3) as both the anode and the cathode. The NASICON-structured Na3MnTi(PO4)(3) possesses two electrochemically active transition metals with the redox couples of Ti4+/Ti3+ and Mn3+/Mn2+ working on the anode and cathode sides, respectively. The symmetric cell based on this bipolar electrode material exhibits a well-defined voltage plateau centered at about 1.4V in an aqueous electrolyte with a stable cycle performance and superior rate capability. The advent of aqueous symmetric sodium-ion battery with high safety and low cost may provide a solution for large-scale stationary energy storage.
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