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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。

2. 发明申请

WO2003073537A1 非水電解質電池审中-公开
标题翻译：非电解电解质电池
公开(公告)号：WO2003073537A1
公开(公告)日：2003-09-04
申请号：PCT/JP2003/001732
申请日：2003-02-18
申请人：ソニー株式会社 , 渋谷真志生 , 川瀬賢一 , 原史子 , 藤重祐介
发明人：渋谷真志生 , 川瀬賢一 , 原史子 , 藤重祐介
IPC分类号： H01M4/58
CPC分类号： H01M4/587 , H01M2/0212 , H01M2/027 , H01M2/0275 , H01M2/0287 , H01M2/06 , H01M4/133 , H01M4/364 , H01M10/0525 , H01M2004/021 , H01M2006/106 , H01M2300/0085
摘要： A battery having a negative electrode comprising a negative electrode mixture layer wherein a mixture of spherical carbonaceous materials having different average particle diameters is used as an active material of negative electrode. The spherical carbonaceous material with greater particle diameter reduces the reaction with nonaqueous electrolytic solution to thereby suppress a drop of battery capacity, and forms interstices of appropriate size in the negative electrode mixture layer to thereby attain retention of the nonaqueous electrolytic solution. On the other hand, the spherical carbonaceous material with smaller particle diameter is efficiently packed while ensuring the presence of such a space that the nonaqueous electrolytic solution can be appropriately retained in the interstices of the negative electrode mixture layer, thereby enhancing the volume density of negative electrode mixture layer and increasing the battery capacity. Therefore, the energy density can be increased without deterioration of battery performance.
摘要翻译：作为负极活性物质，使用具有负极的负极的电池，所述负极混合层的平均粒径不同的球状碳质材料的混合物。具有更大粒径的球形碳质材料减少与非水电解液的反应，从而抑制电池容量的下降，并且在负极混合物层中形成适当尺寸的间隙，从而获得非水电解液的保留。另一方面，粒径较小的球形碳质材料被有效地包装，同时确保存在非水电解液能够适当地保留在负极混合物层的空隙中的空间，从而提高负极的体积密度电极混合层，提高电池容量。因此，可以在不降低电池性能的情况下增加能量密度。

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