POWER STORAGE DEVICE STRUCTURE

• Main Author: YAGI MINORU
• Format: Patent
• Language: English; Japanese
• Published: 26.06.2024
• Subjects: BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

To provide a power storage device structure that can reduce the risk of fire occurring when a power storage device, particularly a power storage device stack in which a plurality of power storage devices are stacked, is damaged or overcharged.SOLUTION: A power storage device structure is composed of a power storage device and a casing that encases the power storage device with a gap therebetween, and has a structure in which a molded body containing an acrylic polymer, the surface of which has been roughened to increase its surface area, is placed in the gap between the power storage device and the casing. The molded body is preferably in the form of a film, sheet, or plate.SELECTED DRAWING: None 【課題】 蓄電デバイス、特に複数の蓄電デバイスを積層した蓄電デバイススタックの破損時や過充電時などの異常時に発火するリスクを低減することが可能な蓄電デバイス構造体を提供する。【解決手段】 蓄電デバイス構造体は、蓄電デバイスとこの蓄電デバイスを空隙を有して外包するケーシングとからなり、蓄電デバイスとケーシングとの空隙に、表面に凹凸加工を施して表面積を増加させたアクリル系ポリマーを含む成形体を配置した構造を有する。この成形体は、フィルム状、シート状または板状であることが好ましい。【選択図】 なし