BINDER FOR USE IN POSITIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, POSITIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY CONTAINING SAID BINDER, LITHIUM ION SECONDARY BATTERY USING SAID POSITIVE ELECTRODE, AND ELECTRICAL MACHINERY AND APPARATUS

摘要

This binder for use in a positive electrode for a lithium ion secondary battery contains a copolymer of both vinyl alcohol and an alkali-metal-neutralized ethylenically unsaturated carboxylic acid.