ELECTROLYTE FOR LITHIUM SECONDARY CELL

摘要

PURPOSE:To improve charge/discharge characteristic of Li electrode by employing mixture solvent of r-butyrolactone and tetrahydrofuran as organic solvent of nonaqueous electrolyte. CONSTITUTION:Mixture solvent of r-butyrolactone and tetrahydrofuran is employed as organic solvent of lithium secondary cell. Preferably mixing ratio of them is 1:9-9:1, and 5:5 is most preferable. When deviating from said range, it will approach to charge/discharge characteristic of independent system to deteriorate characteristic.