The present invention aims to provide an additive for a non-aqueous electrolyte solution with excellent storage stability capable of forming a stable SEI on the surface of an electrode to improve cell performance such as a cycle performance, a discharge/ch...

A gelling agent capable of turning an electrolyte solution for an alkaline battery into a gel, which is less likely to cause syneresis, is composed of particles of a carboxyl group-containing polymer, and a 0.1% by weight aqueous solution has a viscosity o...

It is an object of the present invention to provide an aprotic polar solvent mainly useful as a solvent for an electrochemical device, and having a comparatively low melting point and excellent thermal stability. The present invention is a sulfone compound...