| 摘要 |
PURPOSE:To provide a layered thin battery with improved heat radiation efficiency which is cooled by operation of heat radiation fins to prevent a rise in the internal battery temperature, and is prevented from being fired or exploded, even when power consumption is increased during use thereof. CONSTITUTION:A layered thin battery comprises a heat radiation fin 2 which has ribbon-like electrode current-collectors 1, 7 on which active materials are retained, each current-collector being provided, at its long-side end portion, with a plurality of holes 3 or notches. The fin is wound in the form of a vortex to a hollow configuration, and these fins are laminated to a flat cylindrical configuration. Then, a good electric conductor is joined to a tip end of the fin to thereby cool the battery. |
