POWER STORAGE DEVICE

• Main Author: ISHIKURA SEIYA
• Format: Patent
• Language: English; Japanese
• Published: 28.05.2020
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

To provide a power storage device capable of cooling and discharging a power storage module with a large amount of flooded water by positively causing water to enter a housing case.SOLUTION: A power storage device comprises a power storage module 20, a housing case 21, and a first valve 40 and a second valve 41 that are provided in the housing case 21. The housing case 21 includes a case body including a seal surface 28, a lid 26 provided so as to close an opening 30 of the case body, and a seal member 27 disposed on the seal surface 28 and disposed between the case body and the lid 26. The seal surface 28 is located at a position above the power storage module 20. When the outer pressure of the housing case 21 becomes greater than a first pressure, the first valve 40 opens so that the inside of the housing case 21 is communicated to the outside of the housing case 21. When the inner pressure of the housing case 21 becomes greater than a second pressure, the second valve 41 opens so that the inside of the housing case 21 is communicated to the outside of the housing case 21.SELECTED DRAWING: Figure 2 【課題】積極的に水を収容ケース内に入り込ませることで、浸水した多くの水で蓄電モジュールを冷却し、放電させることができる蓄電装置を提供する。【解決手段】蓄電装置は、蓄電モジュール２０と、収容ケース２１と、収容ケース２１に設けられた第１弁４０および第２弁４１とを備え、収容ケース２１は、シール面２８を含むケース本体と、ケース本体の開口部３０を閉塞するように設けられた蓋２６と、シール面２８に配置されると共にケース本体および蓋２６の間に配置されたシール部材２７とを含み、シール面２８は、蓄電モジュール２０よりも上方に位置しており、第１弁４０は、収容ケース２１の外部の圧力が第１圧力よりも大きくなると、開弁して収容ケース２１の内部と、収容ケース２１の外部とを連通させ、第２弁４１は、収容ケース２１の内圧が、第２圧力よりも大きくなると、開弁して、収容ケース２１の内部と、収容ケース２１の外部とを連通させる。【選択図】図２