高度结晶的拉姆塞石作为近中性水系 MnO/Zn 电池的阴极材料。
Highly crystalline ramsdellite as a cathode material for near-neutral aqueous MnO/Zn batteries.
机构信息
Department of Chemical and Biological Engineering and the Clean Energy Research Center, University of British Columbia, 2360 East Mall, Vancouver, BC V6T 1Z3, Canada.
出版信息
Chem Commun (Camb). 2019 Feb 12;55(14):2082-2085. doi: 10.1039/c8cc07805j.
Chemically-prepared MnO2 containing a highly crystalline ramsdellite phase was tested as a cathode material in aqueous Zn-salt (ZnSO4 and Zn(CF3SO3)2) based electrolytes for the first time. This aqueous MnO2/Zn cell has shown excellent performance and reversibility, retaining ≈65% of its initial capacity for more than 1000 cycles. The charge storage mechanism is complex and includes a ramsdellite/tetragonal spinel two-phase reaction.
首次将具有高度结晶拉锰矿相的化学制备 MnO2 用作水基 Zn 盐（ZnSO4 和 Zn(CF3SO3)2）电解质中的阴极材料进行了测试。这种水性 MnO2/Zn 电池表现出了优异的性能和可逆性，在 1000 次循环以上的时间里保留了 ≈65%的初始容量。电荷存储机制很复杂，包括拉锰矿/尖晶石两相反应。
Zotero 插件