HIGH-VOLTAGE STABLE ELECTROLYTES FOR Li 1+x?MN 2?O 4?/CARBON SECONDARY BATTERIES.

摘要

An electrolyte resistant to oxidation normally resulting from high voltage charging of a secondary battery comprising a Li1+xMn2O4 intercalation positive electrode comprises a 0.5M to 2M solution of LiPF6 dissolved in a mixture of non-aqeuous dimethylcarbonate (DMC) and ethylene carbonate (EC) solvents wherein said solvents are present in a weight percent ratio range from about 95 DMC:5 EC to 20 DMC:80 EC.