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1. 发明申请

WO2003017393A1 電池审中-公开
标题翻译：细胞
公开(公告)号：WO2003017393A1
公开(公告)日：2003-02-27
申请号：PCT/JP2002/008272
申请日：2002-08-14
申请人：ソニー株式会社 , 氏家康晴 , 渋谷真志生
发明人：氏家康晴 , 渋谷真志生
IPC分类号： H01M2/16
CPC分类号： H01M10/0525 , H01M2/16 , H01M2/1653 , H01M4/131 , H01M4/133 , H01M4/485 , H01M4/505 , H01M4/525 , H01M4/583 , H01M10/0568 , H01M10/0569
摘要： A cell having an excellent discharge load characteristic and an excellent low−temperature discharge characteristic. The cell has a coiled electrode element in which band−shaped positive and negative electrodes and a separator (23) impregnated with an electrolyte and interposed between them are coiled. The separator (23) includes a porous film (23a) such that the mean pore diameter is 0.15 µm or less, and the mean ratio of the largest diameter (D L ) of the pores to the shortest diameter (D S ) ranges from 0.4 to 1.0. As a result the pores (23b) are prevented from being plugged. The electrolyte permeability, ionic permeability, and electrolyte retainability of the separator (23) are improved. Consequently, the cell can have excellent discharge load characteristic and low−temperature discharge characteristic.
摘要翻译：具有优异的放电负荷特性和优异的低温放电特性的电池。电池具有线圈状电极元件，其中带状正极和负极以及浸渍有电解质的隔膜（23）卷绕在它们之间。分离器（23）包括平均孔径为0.15μm以下的多孔膜（23a），孔的最大直径（D s / L）的平均比例与最小直径（D S ）为0.4〜1.0。结果，防止孔（23b）堵塞。提高了隔膜（23）的电解质渗透性，离子渗透性和电解质保持性。因此，电池可以具有优异的放电负载特性和低温放电特性。

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