LITHIUM BATTERY ELECTROLYTE

摘要

PURPOSE:To heighten conductivity, also improve a charge and discharge characteristic of lithium by making a lithium battery electrolyte in which lithium salt is made to dissolve in an organic solvent include a specified concentration range of tetraalkylammonium salt. CONSTITUTION:Tetraalkylammonium salt having a 10<-3>M-10<-1>M range concentration is made included to a lithium battery electrolyte in which lithium salt is made dissolved into an organic solvent. Tetraalkylammonium salt is easily absorbed to a lithium load, constrains a reaction of Li and a solvent, which causes lowering of a charge and discharge efficiency of Li, and smoothly conducts deposition to a negative electrode and dissolution from the negative electrode to an electrolyte of Li<+>ion following the charge and discharge without interrupting dissociation of lithium salt and movability of Li<+>ion. This enables a lithium battery electrolyte having a higher conductivity and better charge and discharge efficiency to be obtained compared to a conventional lithium battery electrolyte in which coexistence of a high conductivity and good charge and discharge efficiency is difficult.