Electricity storage module

• Main Authors: Inoue, Taku, Hirose, Takayuki, Okumura, Motoyoshi, Kikuchi, Takuro
• Format: Patent
• Language: English
• Published: 30.11.2021
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

An electricity storage module includes: a laminate including a plurality of bipolar electrodes, each bipolar electrode including an electrode plate, a positive electrode, and a negative electrode; a frame body holding an edge portion of the electrode plate and including an opening that communicates with internal spaces; and a pressure regulating valve connected to the opening. Each internal space is provided between the bipolar electrodes. Each internal space accommodates an electrolytic solution. An exhaust port and a communication space are provided in the pressure regulating valve. The exhaust port is provided for exhausting gas to an external space. The communication space communicates with the exhaust port. The communication space includes a space portion positioned below a lower end of the exhaust port.