发明名称 CYLINDRICAL LITHIUM-ION CELL
摘要 A lithium-ion cell in which an electrode group (20), obtained by winding a positive electrode and a negative electrode with a separator interposed therebetween, is accommodated in a cell case (1), wherein: the opening part of the cell case is sealed by a sealing plate (5) with a gasket positioned therebetween; an insulating plate (8) having a plurality of opening parts formed therein is provided on the sealing-plate (5) side of the electrode group (20); the opening parts have a first hole (8a) having the largest opening area and a plurality of second holes (8b) having a smaller opening area than that of the first hole (8a); the aperture ratio of the first hole (8a) is 12% to 40%; the sum of the aperture ratios of the second holes (8b) is 0.3% to 10%; and the aperture ratio of the opening parts as a whole is 20% to 50%.
申请公布号 WO2013099295(A1) 申请公布日期 2013.07.04
申请号 WO2012JP08463 申请日期 2012.12.28
申请人 PANASONIC CORPORATION 发明人 YOKOYAMA, TOMOHIKO;MURAOKA, YOSHIYUKI;FUKUOKA, TAKAHIRO;MIYATA, KYOSUKE
分类号 H01M10/0587;H01M2/02;H01M2/06;H01M2/12;H01M2/34;H01M4/525;H01M10/0525 主分类号 H01M10/0587
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