A sulphide lithium super ion conductor is superior to liquid ion conductors for use in rechargeable batteries?
Energy & Environmental Science Pub Date: 2013-12-16 DOI: 10.1039/C3EE41655K
Abstract
We report that a heat-treated Li2S–P2S5 glass-ceramic conductor has an extremely high ionic conductivity of 1.7 × 10?2 S cm?1 and the lowest conduction activation energy of 17 kJ mol?1 at room temperature among lithium-ion conductors reported to date. The optimum conditions of the heat treatment reduce the grain boundary resistance, and the influence of voids, to increase the Li+ ionic conductivity of the solid electrolyte so that it is greater than the conductivities of liquid electrolytes, when the transport number of lithium ions in the inorganic electrolyte is unity.
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Journal Name：Energy & Environmental Science
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CAS no.: 89640-58-4
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