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Tris(methoxy polyethylenglycol) borate ester (B-PEG) and aluminum tris(polyethylenglycoxide) (Al-PEG) were used as electrolyte solvent for lithium ion battery, and the electrochemical property of these electrolytes were investigated. These electrolytes, especially B-PEG, showed poor electrochemical stability, leading to insufficient discharge capacity and rapid degradation with cycling. These observations...
All solid-state lithium polymer secondary battery (LPB) was fabricated by using lithium conducting poly(ethylene oxide) film as solid-state polymer electrolyte (SPE). To enhance the ionic conductivity of lithium, PEG-borate ester or PEG-aluminate ester was added to the SPE as plasticizer. The fabricated LPBs with LiFePO 4 cathodes were cycled at 60 °C with and without plasticizer. At lower...
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