期刊
ENERGY & FUELS
卷 34, 期 10, 页码 13104-13110出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.energyfuels.0c02349
关键词
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资金
- National Key R&D Program of China [2018YFB0104300]
- National Natural Science Foundation Committee of China [51425301, U1601214]
- State Key Lab Research Foundation [ZK201805, ZK201717]
- Jiangsu Provincial Innovation Foundation for Postgraduate [KYCX20_1072]
Aqueous rechargeable batteries (ARBs) are expected to be used in future energy storage systems (ESSs) because of their nontoxicity, nonflammability, and ultrahigh ionic conductivity. However, their low energy density and poor cycle stability are two main drawbacks restricting their application. In this work, we synthesized a highly crystalline monoclinic nickel hexacyanoferrate (NiHCF) and used it in aqueous zinc-sodium hybrid batteries. Because of its low Fe(CN)(6) vacancy amount and low water content, the monoclinic NiHCF exhibits high specific capacity and excellent cycle and rate performance. The assembled AZSHBs show excellent electrochemical performance, with an average operating voltage up to 1.464 V, high energy density of 99.1 Wh kg(-1), and good cycling stability with 91% capacity retention after 1000 cycles.
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