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Rechargeable Zinc-Aqueous Polysulfide Battery with a Mediator-Ion Solid Electrolyte
ACS Applied Materials & Interfaces ( IF 9.5 ) Pub Date : 2018-03-21 00:00:00 , DOI: 10.1021/acsami.8b00981
Martha M. Gross 1 , Arumugam Manthiram 1
Affiliation  

Large-scale energy storage for the electric grid will require low-cost and high-energy-density solutions. We demonstrate in this letter a rechargeable zinc-aqueous polysulfide battery in which a metallic zinc anode is separated from a liquid aqueous polysulfide catholyte by an alkali-metal-ion solid-state electrolyte, wherein the alkali metal ion is Na+ or Li+. The solid-state electrolyte effectively separates the anode from the reactive polysulfide catholyte, preventing the crossover of the polysulfide species and maintaining good electrochemical performance with a reversible discharge capacity of 822 mA h g–1 with nearly 100% Coulombic efficiency.

中文翻译:

具有介体离子固体电解质的可充电锌水多硫化物电池

电网的大规模储能将需要低成本和高能量密度的解决方案。我们在这封信中演示了一种可再充电的锌水多硫化物电池,其中金属锌阳极通过碱金属离子固态电解质与液态水多硫化物阴极电解质隔开,其中碱金属离子为Na +或Li +。固态电解质可有效地将阳极与反应性多硫化物阴极电解质分隔开,从而防止多硫化物物种交叉并保持良好的电化学性能,可逆放电容量为822 mA hg –1,库仑效率接近100%。
更新日期:2018-03-21
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