PROBLEM TO BE SOLVED: To provide a power storage device capable of preventing inclusion of air bubbles to between a heat conduction sheet and a cooling plate and between the heat conduction sheet and a bottom face of a battery cell, and of keeping the battery cell within an optimum temperature range, and to provide a work machine comprising such a power storage device.SOLUTION: A power storage device comprises: a plurality of battery cells 9a whose bottom faces are lined up in one direction to be in parallel with each other; a cooling plate 11 placed at the bottom face side of the battery cells 9a; and a heat conduction sheet 10a placed between the bottom faces of the battery cells 9a and the cooling plate 11. To the heat conduction sheet 10a, a notch 17 extending from a part contacted with the bottom faces of the battery cells 9a to a part not contacted with the bottom faces of the battery cells 9a is formed on a surface at a side that presses the battery cell 9a.

    【課題】熱伝導シートと冷却プレートとの間、及び、熱伝導シートと電池セルの底面との間への気泡の巻き込みを防止できて、電池セルを最適な温度範囲に保持可能な蓄電装置を提供する。また、このような蓄電装置を備えた作業機械を提供する。【解決手段】底面を一方向に揃えて並列した複数のバッテリセル9aと、バッテリセル9aの底面側に配置した冷却プレート11と、バッテリセル9aの底面と冷却プレート11との間に配置した熱伝導シート10aを備える。熱伝導シート10aには、バッテリセル9aを押圧する側の面に、バッテリセル9aの底面が接する部分からバッテリセル9aの底面が接しない部分まで延びる切り込み17を形成する。【選択図】図10


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    Title :

    POWER STORAGE DEVICE, AND WORK MACHINE MOUNTING THE SAME


    Additional title:

    蓄電装置及びこれを搭載した作業機械


    Contributors:

    Publication date :

    2015-08-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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