POWER STORAGE DEVICE

• Main Authors: YAMADA KINJI, KIKUCHI TOSHIMITSU, HARA TAKEO, KUROSAWA KENICHI
• Format: Patent
• Language: English; Japanese
• Published: 10.09.2015
• 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 power storage device which is arranged to be able to exhibit a high electromotive force and superior charge and discharge characteristics by enhancement of the electrical conductivity of an electrode active material layer, and which enables the reduction in worsening of these characteristics owing to the repetition of charge and discharge.SOLUTION: A power storage device according to the present invention comprises: laminates arranged laminating bipolar electrodes through solid electrolytic layers. The bipolar electrodes each have a conductive layer, a first active material layer formed on one surface of the conductive layer, and a second active material layer formed on the other surface of the conductive layer, provided that one of the first and second active material layers serves as a positive electrode active material layer, and the other serves as a negative electrode active material layer; and the solid electrolytic layers. The solid electrolytic layer includes silver ion conducting solid electrolyte. 【課題】電極活物質層の電気伝導性を向上させて、高い起電力および優れた充放電特性を発揮できると共に、充放電の繰り返しによるこれらの特性の劣化を低減できる蓄電デバイスを提供する。【解決手段】本発明に係る蓄電デバイスは、導電層、前記導電層の一方の表面に形成された第１活物質層、および前記導電層の他方の表面に形成された第２活物質層を有し、前記第１活物質層および前記第２活物質層のいずれか一方が正極活物質層、他方が負極活物質層として機能するバイポーラ電極と、固体電解質層と、を含み、前記固体電解質層を介して前記バイポーラ電極が積層された積層体を複数備え、前記固体電解質層が銀イオン伝導性固体電解質を含有することを特徴とする。【選択図】図１