MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Development of 4V-Class Bulk-Type All-Solid-State Lithium Rechargeable Batteries by a Combined Use of Complex Hydride and Sulfide Electrolytes for Room Temperature Operation
Atsushi UnemotoGenki NogamiMasaru TazawaMitsugu TaniguchiShin-ichi Orimo
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2017 Volume 58 Issue 7 Pages 1063-1068

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Abstract

We have operated a 4V-class bulk-type, all-solid-state LiCoO2/Li battery at room temperature. The battery consisted of a Li4(BH4)3I complex hydride electrolyte as the electrolyte layer, and a 80Li2S 20P2S5 sulfide glass as an electrolyte in the positive electrode layer. The assembled battery exhibited a 92 mAh g−1 initial discharge capacity at 298 K and 0.1 C. The discharge capacity for the 20th cycle remained as high as 83 mAh g−1, corresponding to a capacity retention ratio of nearly 90%.

 

This Paper was Originally Published in Japanese in J. Japan Inst. Met. Mater. 80 (2016) 720–725.

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© 2017 The Japan Institute of Metals and Materials
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