期刊
CHEMICAL COMMUNICATIONS
卷 55, 期 99, 页码 14988-14991出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9cc07996c
关键词
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资金
- Top-notch Talents'' program of Beihang University
- Thousand Youth Talents Plan'' of China
- National Natural Science Foundation of China [51902014, U1663224]
- School of Chemical and Biological Engineering in the Changsha University of Science Technology
When tested as the cathode material for potassium-ion batteries, K2V3O8 delivers a highly reversible capacity of over 100 mA h g(-1) in the voltage range of 1.5-4.5 V with 73% capacity retained after 50 cycles. Charge-discharge is achieved by a nontopotactic process between K2V3O8 and KV3O8 (Delta V similar to -23.4%), causing the slow capacity decay.
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