Patent ID: 7645539
Filing Date: 2010-01-12
Classification: H01M,Y02E

Abstract:
1. A non-aqueous electrolyte secondary battery comprising: (A) a liquid electrolyte comprising a non-aqueous solvent and an alkali metal salt dissolved in said non-aqueous solvent; (B) a positive electrode active material comprising a redox material that is dissolved or dispersed in said liquid electrolyte; (C) a positive electrode current collector that provides a place where an oxidation-reduction reaction involving said positive electrode active material occurs; and (D) a negative electrode capable of charging and discharging in which an alkali metal ion participates, wherein said negative electrode is covered with a separating film, and said separating film has alkali-metal-ion conductivity and shields the negative electrode from said positive electrode active material, whereby said negative electrode is electronically insulated from said positive electrode active material, and said separating film comprises an alkali-metal-ion conductive solid electrolyte.