ORGANIC ELECTROLYTE SECONDARY BATTERY

摘要

PURPOSE:To enhance the overdischarge characteristics by using a mixture solvent consisting of an organic electrolyte solvent to which at least succinic anhydride is added. CONSTITUTION:A mixture solvent containing succinic anhydride is used to the solvent for organic electrolyte. This provides a charge/discharge characteristics equivalent to or better than when a conventional mixture solvent of PC or EC and ethers is used, and even an overdischarge causes less dissolution of the solvent, to allow sufficient charging/discharging thereafter. Here mix proportion of succinic anhydride to the other solvent shall be 1:10 thru 30:10 by mol.