A Novel Electrolyte Protect Layer for Aqueous Lithium-Air Battery

Ying Peng Gong; Ming Zhang; Bo Chi; Li Jian

doi:10.4028/www.scientific.net/KEM.680.520

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 680A Novel Electrolyte Protect Layer for Aqueous...

A Novel Electrolyte Protect Layer for Aqueous Lithium-Air Battery

Abstract:

Solid-state composite polymer electrolyte PEO₁₈LiTFSI-xDMSO (CPE_x) are prepared by the casting process. An optimized freestanding electrolyte CPE_x system yields a lithium ionic conductivity of 2.8×10^-4 Scm^-1 at 60 oC with x =1.32. The interfacial resistances of Li/CPE_x and Li/CPE_x/H-LAGP are examined. The interfacial resistance between CPE₀ and lithium metal is reduced sharply by the addition of DMSO for CPE_1.32 at 60 oC after storage about 35 days. The aqueous lithium air battery consists of Li/CPE_1.32/H-LAGP electrode as a lithium protected electrode is successfully operated with LiCl saturated LiOH aqueous solution as electrolyte and Pt black as reference electrode at current density of 0.2 mAcm^-1 at 60 oC.

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Periodical:

Key Engineering Materials (Volume 680)

Pages:

520-524

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.680.520

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Online since:

February 2016

Authors:

Ying Peng Gong*, Ming Zhang, Bo Chi, Li Jian

Keywords:

Interface Resistance, Lithium Air Batteries, Water Stable Lithium Electrode

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