Rechargeable Zinc-Aqueous Polysulfide Battery with a Mediator-Ion Solid Electrolyte | Zendy

Martha Gross | Zendy; Arumugam Manthiram | Zendy

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Rechargeable Zinc-Aqueous Polysulfide Battery with a Mediator-Ion Solid Electrolyte

Author(s) -

Martha Gross,

Arumugam Manthiram

Publication year - 2018

Publication title -

acs applied materials and interfaces

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.535

H-Index - 228

eISSN - 1944-8252

pISSN - 1944-8244

DOI - 10.1021/acsami.8b00981

Subject(s) - polysulfide , materials science , electrolyte , battery (electricity) , zinc , aqueous solution , inorganic chemistry , mediator , ion , chemical engineering , metallurgy , organic chemistry , electrode , chemistry , power (physics) , physics , quantum mechanics , engineering , medicine

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.

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