BATTERY OF NONAQUEOUS ELECTROLYTE

• Main Authors: YAMAMOTO KOHEI, SHINODA KENICHI, HARADA YOSHIRO, KITAKATA MASAKAZU
• Format: Patent
• Language: English
• Published: 13.11.1989
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

PURPOSE:To improve safety by using either of LiCF3SO3, LiPF6, LiBF4, LiAsF6 as an electrolyte to be dissolved in a nonaqueous electrolyte of an organic solvent with its main ingredient being ethoxymethoxyethane. CONSTITUTION:In a nonaqueous electrolyte liquid in which electrolytes are dissolved in an organic solvent, the organic solvent has ethoxymethoxyethane as a main ingredient and at least any of LiCf3SO3, LiPF6, LiBF4, and LiAsF6 is used as an ingredient. In this case, while the use of LiCF3SO3 is preferable from the viewpoint of the battery discharge performance, as it may corrode a lead plate on the anode side and the battery case, a small amount of LiClO4 is added to inhibit the corrosion. The flame point of ethoxymethoxyethane is 20 deg.C which is far higher than that of dimethoxyethane or tetrahydrofuran conventionally used in this kind of electrolyte solvent. This provides a battery of a higher safety.