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Invention Publication
CN101026250A 非水电解质电池、电池组和汽车 有权

非水电解质电池、电池组和汽车
Abstract:
本发明提供了通过落下等施加冲击时的内部短路得到抑制的非水电解质电池、电池组和汽车。本发明的非水电解质电池具备：具有包含正极集电体的正极、和包含负极集电体的负极的扁平状的电极组(1)；容纳有上述电极组(1)，并在周边的至少一部分具有封口部分的外壳部件(2)；正极端子(15)，其一端与上述正极集电体电连接，另一端从该连接部分先向接近所述电极组的方向导出，然后向远离所述电极组方向弯曲而转换方向，通过上述封口部分而引出到外部；和负极端子(16)，其一端与上述负极集电体电连接，并且另一端从该连接部分先向接近所述电极组的方向导出，然后向远离所述电极组方向弯曲而转换方向，通过上述封口部分而引出到外部；其中上述正极端子(15)满足下述(1)式，上述负极端子(16)满足下述(2)式，t2×W2≥0.25Sp(1)，t3×W3≥0.25Sn(2)。
Abstract(English):

A nonaqueous electrolyte battery includes a flattened electrode group (1), a case (2), a positive electrode terminal (15) and a negative electrode terminal (16). The positive electrode terminal (15) is bent around one edge portion of the positive electrode terminal (15), curved toward the electrode group (1) and reaches a sealed portion. The other edge portion of the positive electrode terminal (15) extends from the case (2) through the sealed portion. The negative electrode terminal (16) is bent around one edge portion of the negative electrode terminal (16), curved toward the electrode group (1) and reaches the sealed portion. The other edge portion of the negative electrode terminal (16) extends from the case (2) through the sealed portion. The positive electrode terminal (15) satisfies formula (1) given below and the negative electrode terminal (16) satisfies formula (2) given below: t 2 W 2 0.25 S p t 3 W 3 0.25 S n.

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