期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 57, 期 19, 页码 5335-5339出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201800181
关键词
capacity enhancement; dual electrolyte batteries; redox chemistry; redox-active electrolytes; sodium
资金
- Korea Research Fellowship Program through the National Research Foundation of Korea (NRF) - Ministry of Science and ICT [2016H1D3A1909680]
- Ulsan National Institute of Science and Technology (UNIST) [1.180014.01]
- National Research Foundation of Korea [2016H1D3A1909680] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
A strategy is described to increase charge storage in a dual electrolyte Na-ion battery (DESIB) by combining the redox chemistry of the electrolyte with a Na+ ion de-insertion/insertion cathode. Conventional electrolytes do not contribute to charge storage in battery systems, but redox-active electrolytes augment this property via charge transfer reactions at the electrode-electrolyte interface. The capacity of the cathode combined with that provided by the electrolyte redox reaction thus increases overall charge storage. An aqueous sodium hexacyanoferrate (Na4Fe(CN)(6)) solution is employed as the redox-active electrolyte (Na-FC) and sodium nickel Prussian blue (Na-x-NiBP) as the Na+ ion insertion/de-insertion cathode. The capacity of DESIB with Na-FC electrolyte is twice that of a battery using a conventional (Na2SO4) electrolyte. The use of redox-active electrolytes in batteries of any kind is an efficient and scalable approach to develop advanced high-energy-density storage systems.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据