【発明の名称】全固体二次電池

Japanese Patent JP2819027

B2

PURPOSE:To improve chage-discharge characteristics so that the cell can be safely used in a wide temperature range by using a specific lamellar structure oxide as a positive electrode active material and lithium or lithium alloy as a negative electrode active material and a specific compound as an electrolyte. CONSTITUTION:A lamellar structure oxide expressed by Formula I is used as a positive electrode active material, and lithium or lithium alloy is used as a negative electrode active material, and oligoalkylene oxypolyphosphagen having fluoroalkyl sulfone groups which the segments expressed in Formula II, III and IV arbitrarily arrange or a mixture of them is used as an electrolyte. However, in Formula I, x+y=1, 0