BATTERY, ELECTROLYTE LAYER, BATTERY PACK, ELECTRONIC APPARATUS, ELECTRIC VEHICLE, POWER STORAGE DEVICE, AND POWER SYSTEM

摘要

A gel electrolyte layer, which is positioned between a positive electrode and a negative electrode, containing particles, a resin material, and a polymer compound that holds said resin material, wherein the heat capacity per unit surface area is equal to or greater than 0.0001J/Kcm2, and the heat capacity per unit volume is equal to or less than 3.0J/Kcm3.