LAMINATED SOLID BATTERY

• Main Authors: ITO AKIHIRO, HAYASHI GOJI, ISHIKURA TAKERO, YOSHIOKA MITSURU, ONOUCHI YASUHIRO
• Format: Patent
• Language: English; Japanese
• Published: 19.03.2015
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

PROBLEM TO BE SOLVED: To provide a laminated solid battery including an internal collector layer capable of suppressing expression of ionic conductivity due to diffusion of element occurring during integral calcination.SOLUTION: A laminated solid battery 10 includes a (single cell 1) and (single cell 2), and an internal collector layer 4 arranged to be interposed between the (single cell 1) and (single cell 2). The (single cell 1) and (single cell 2) are constituted, respectively, of a positive electrode layer 1, a solid electrolyte layer 3, and a negative electrode layer 2 laminated in order. The internal collector layer 4 has one side face in contact with the positive electrode layer 1 of the (single cell 2), and the other side face in contact with the negative electrode layer 2 of the (single cell 1). Furthermore, the internal collector layer 4 contains an insulating glass material in electronic conduction and ionic conduction, and an electronic conduction material. 【課題】一体焼成時に生じる元素の拡散によるイオン伝導性の発現を抑制することが可能な内部集電層を備えた積層型固体電池を提供する。【解決手段】積層型固体電池１０は、（単電池１）と（単電池２）と、（単電池１）と（単電池２）の間に介在するように配置された内部集電層４とを備える。（単電池１）と（単電池２）は、各々が順に積み重ねられた正極層１、固体電解質層３および負極層２から構成される。内部集電層４は、（単電池２）の正極層１に接触する一方側面と、（単電池１）の負極層２に接触する他方側面とを有する。また、内部集電層４は、電子伝導的にかつイオン伝導的に絶縁性のガラス材料と、電子伝導材料とを含む。【選択図】図１