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公开(公告)号：US20090104529A1
公开(公告)日：2009-04-23
申请号：US11916603
申请日：2006-07-21
IPC分类号： H01M4/58
CPC分类号： H01M4/70 , H01M10/0525 , Y02E60/122 , Y02T10/7011
摘要： An object of the present invention is to provide an electrode for a lithium ion secondary battery that can ensure a high level of safety even when exposed to severe conditions such as a nail penetration test or crush test, and exhibit excellent output characteristics.The present invention relates to an electrode for a lithium ion secondary battery having a material mixture containing active material particles capable of reversibly absorbing and desorbing lithium, and a current collector that carries the material mixture, wherein a surface of the current collector has recessed portions, and an area occupied by the recessed portions accounts for not less than 30% of an a material mixture carrying area of the current collector. The present invention further relates to an electrode for a lithium ion secondary battery wherein, in a cut surface obtained by simultaneously cutting a material mixture and a current collector vertically to an electrode plane, the maximum depth of recessed portions is not less than 1 μm, or a difference between an average thickness of a current collector and a maximum thickness of the current collector is not less than 0.35 μm.
摘要翻译： 本发明的目的是提供一种锂离子二次电池用电极，即使在暴露于诸如指甲穿透试验或粉碎试验等严酷条件下也能够确保高水平的安全性，并且显示出优异的输出特性。 本发明涉及一种锂离子二次电池用电极，其具有包含能够可逆地吸收和解吸锂的活性物质粒子的材料混合物，以及承载该材料混合物的集电体，其中集电体的表面具有凹部， 并且由凹部占据的面积占集电体的混合物承载面积的30％以上。 本发明还涉及一种锂离子二次电池用电极，其特征在于，在与电极平面垂直地同时切割材料混合物和集电体的切断面中，凹部的最大深度为1μm以上， 或者集电体的平均厚度与集电体的最大厚度的差为0.35μm以上。
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公开(公告)号：US08883348B2
公开(公告)日：2014-11-11
申请号：US11916603
申请日：2006-07-21
IPC分类号： H01M4/00 , H01M4/13 , H01M4/58 , H01M10/0525 , H01M4/70
CPC分类号： H01M4/70 , H01M10/0525 , Y02E60/122 , Y02T10/7011
摘要： An object of the present invention is to provide an electrode for a lithium ion secondary battery that can ensure a high level of safety even when exposed to severe conditions such as a nail penetration test or crush test, and exhibit excellent output characteristics.The present invention relates to an electrode for a lithium ion secondary battery having a material mixture containing active material particles capable of reversibly absorbing and desorbing lithium, and a current collector that carries the material mixture, wherein a surface of the current collector has recessed portions, and an area occupied by the recessed portions accounts for not less than 30% of an a material mixture carrying area of the current collector. The present invention further relates to an electrode for a lithium ion secondary battery wherein, in a cut surface obtained by simultaneously cutting a material mixture and a current collector vertically to an electrode plane, the maximum depth of recessed portions is not less than 1 μm, or a difference between an average thickness of a current collector and a maximum thickness of the current collector is not less than 0.35 μm.
摘要翻译： 本发明的目的是提供一种锂离子二次电池用电极，即使在暴露于诸如指甲穿透试验或粉碎试验等严酷条件下也能够确保高水平的安全性，并且显示出优异的输出特性。 本发明涉及一种锂离子二次电池用电极，其具有包含能够可逆地吸收和解吸锂的活性物质粒子的材料混合物，以及承载该材料混合物的集电体，其中集电体的表面具有凹部， 并且由凹部占据的面积占集电体的混合物承载面积的30％以上。 本发明还涉及一种锂离子二次电池用电极，其特征在于，在与电极平面垂直地同时切割材料混合物和集电体的切断面中，凹部的最大深度为1μm以上， 或者集电体的平均厚度与集电体的最大厚度的差为0.35μm以上。
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3.发明授权Electrode group for battery and non-aqueous electrolyte secondary battery using the same 有权电极组电池和非水电解质二次电池使用相同公开(公告)号：US07425386B2
公开(公告)日：2008-09-16
申请号：US10664879
申请日：2003-09-22
CPC分类号： H01M10/0431 , H01M2/0267 , H01M2/0275
摘要： An electrode group for a battery including a positive electrode and a negative electrode wound into a spiral with a separator interposed therebetween, wherein the positive electrode includes a positive electrode current collector and positive electrode material mixture layers formed on both sides of the positive electrode current collector, the negative electrode includes a negative electrode current collector and negative electrode material mixture layers formed on both sides of the negative electrode current collector, a lead is connected to at least one of the positive electrode current collector and the negative electrode current collector, and at least one of step portions having difference in level formed in the electrode group by lengthwise ends of the positive electrode, the negative electrode and the separator and the periphery of the lead, respectively, is covered with an insulating member arranged on an inner circumference side or an outer circumference side of a turn of the electrode group.
摘要翻译： 一种电池用电极组，包括正极和负极，其间插入有隔板，所述正极包括正极集电体和形成在所述正极集电体的两侧的正极合剂层 负极包括在负极集电体的两侧形成的负极集电体和负极复合层，引线与正极集电体和负极集电体中的至少一个连接，在 分别由正极，负极和隔板的长度方向端部以及引线的外周分别在电极组中形成的电平差异的台阶部分中的至少一个被布置在内周侧的绝缘构件 的一个外圈的一个转弯 电极组。
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公开(公告)号：US08017262B2
公开(公告)日：2011-09-13
申请号：US11339617
申请日：2006-01-26
CPC分类号： H01M10/052 , H01M2/1653 , H01M2/166 , H01M2/1673 , H01M2/1686 , H01M4/525 , H01M10/4235 , Y02T10/7011
摘要： A lithium secondary battery including: an electrode group, a non-aqueous electrolyte and a battery case housing the electrode group and the non-aqueous electrolyte, the electrode group including a positive electrode, a negative electrode and a separator layer interposed between the positive electrode and the negative electrode, wherein an end-of-charge voltage and an end-of-discharge voltage are set in such a manner that the electrode group has an energy density of not less than 700 Wh/L, the separator layer includes a porous heat-resistant layer, and a short circuit area A produced when an internal short circuit has occurred between the positive electrode and the negative electrode, and a reduced area B of the porous heat-resistant layer that is produced by heat generation satisfy 1≦(A+B)/A≦10.
摘要翻译： 一种锂二次电池，其包括：电极组，非水电解质和容纳所述电极组和所述非水电解质的电池壳体，所述电极组包括正极，负极和插入在所述正极之间的隔板层 和负极，其中以使得电极组的能量密度不低于700Wh / L的方式设定充电结束电压和放电终止电压，隔板层包括多孔 耐热层和在正极和负极之间发生内部短路时产生的短路面积A，通过发热产生的多孔耐热层的减少面积B满足1＆lt; nlE;（ A + B）/ A＆nlE; 10。
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公开(公告)号：US07687202B2
公开(公告)日：2010-03-30
申请号：US11315189
申请日：2005-12-23
CPC分类号： H01M4/131 , H01M2/1653 , H01M4/505 , H01M4/525 , H01M10/4235
摘要： A non-aqueous electrolyte secondary battery including: a positive electrode having a positive electrode material mixture containing a composite lithium oxide; a negative electrode; a polyolefin separator; a non-aqueous electrolyte; and a heat-resistant insulating layer interposed between the positive and negative electrodes. The positive electrode active material mixture has an estimated heat generation rate at 200° C. of not greater than 50 W/kg. The estimated heat generation rate is determined by obtaining a relation between absolute temperature T and heat generation rate V of the positive electrode material mixture using an accelerating rate calorimeter; plotting a relation between the inverse of absolute temperature T and the logarithm of heat generation rate V according to the Arrhenius law; obtaining a straight line fitted to the plotted points in a heat generation temperature range of T
摘要翻译： 一种非水电解质二次电池，包括：具有含有复合氧化锂的正极合剂混合物的正极; 负极; 聚烯烃分离器; 非水电解质; 以及插入在正极和负极之间的耐热绝缘层。 正极活性物质混合物在200℃下的估计发热率不大于50W / kg。 通过使用加速率量热计获得正极材料混合物的绝对温度T和发热量V之间的关系来确定估计发热速率; 根据Arrhenius定律绘制绝对温度T的倒数与发热量V的对数之间的关系; 在T <200℃的发热温度范围内获得拟合到绘图点的直线; 并将直线外推至200℃的温度。
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公开(公告)号：US20060286438A1
公开(公告)日：2006-12-21
申请号：US11473328
申请日：2006-06-23
CPC分类号： H01M10/052 , H01M2/1653 , H01M2/166 , H01M2/1673 , H01M2/1686 , H01M4/525 , H01M10/4235 , Y02T10/7011
摘要： A lithium secondary battery including: an electrode group, a non-aqueous electrolyte and a battery case housing the electrode group and the non-aqueous electrolyte, the electrode group including a positive electrode, a negative electrode and a separator layer interposed between the positive electrode and the negative electrode, wherein an end-of-charge voltage and an end-of-discharge voltage are set in such a manner that the electrode group has an energy density of not less than 700 Wh/L, the separator layer includes a porous heat-resistant layer, and a short circuit area A produced when an internal short circuit has occurred between the positive electrode and the negative electrode, and a reduced area B of the porous heat-resistant layer that is produced by heat generation satisfy 1≦(A+B)/A≧10.
摘要翻译： 一种锂二次电池，其包括：电极组，非水电解质和容纳所述电极组和所述非水电解质的电池壳体，所述电极组包括正极，负极和插入在所述正极之间的隔板层 和负极，其中以使得电极组的能量密度不低于700Wh / L的方式设定充电结束电压和放电终止电压，隔板层包括多孔 耐热层和在正极和负极之间发生内部短路时产生的短路面积A，通过发热产生的多孔耐热层的减少面积B满足1 <= （A + B）/ A> = 10。
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公开(公告)号：US20060286445A1
公开(公告)日：2006-12-21
申请号：US11473334
申请日：2006-06-23
CPC分类号： H01M4/131 , H01M2/1653 , H01M2/1673 , H01M4/133 , H01M4/525 , H01M4/58 , H01M10/0431 , H01M10/0525 , H01M10/0587 , H01M10/4235
摘要： A non-aqueous electrolyte secondary battery including: a positive electrode having a positive electrode material mixture containing a composite lithium oxide; a negative electrode; a polyolefin separator; a non-aqueous electrolyte; and a heat-resistant insulating layer interposed between the positive and negative electrodes. The positive electrode material mixture has an estimated heat generation rate at 200° C. of not greater than 50 W/kg. The positive electrode and the negative electrode are wound together with the separator and the heat-resistant insulating layer interposed therebetween.
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公开(公告)号：US08951674B2
公开(公告)日：2015-02-10
申请号：US11473327
申请日：2006-06-23
CPC分类号： H01M4/131 , H01M2/1653 , H01M4/505 , H01M4/525 , H01M10/4235
摘要： A non-aqueous electrolyte secondary battery including: a positive electrode having a positive electrode material mixture containing a composite lithium oxide; a negative electrode; a polyolefin separator; a non-aqueous electrolyte; and a heat-resistant insulating layer interposed between the positive and negative electrodes. The positive electrode material mixture has an estimated heat generation rate at 200° C. of not greater than 50 W/kg. The positive electrode and the negative electrode are wound together with the separator and the heat-resistant insulating layer interposed therebetween.
摘要翻译： 一种非水电解质二次电池，包括：具有含有复合氧化锂的正极合剂混合物的正极; 负极; 聚烯烃分离器; 非水电解质; 以及插入在正极和负极之间的耐热绝缘层。 正极材料混合物在200℃下的估计发热速率不大于50W / kg。 将正极和负极与隔板缠绕在一起，并且将耐热绝缘层插入其间。
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公开(公告)号：US08187748B2
公开(公告)日：2012-05-29
申请号：US11473334
申请日：2006-06-23
IPC分类号： H01M4/13
CPC分类号： H01M4/131 , H01M2/1653 , H01M2/1673 , H01M4/133 , H01M4/525 , H01M4/58 , H01M10/0431 , H01M10/0525 , H01M10/0587 , H01M10/4235
摘要： A non-aqueous electrolyte secondary battery including: a positive electrode having a positive electrode material mixture containing a composite lithium oxide; a negative electrode; a polyolefin separator; a non-aqueous electrolyte; and a heat-resistant insulating layer interposed between the positive and negative electrodes. The positive electrode material mixture has an estimated heat generation rate at 200° C. of not greater than 50 W/kg. The positive electrode and the negative electrode are wound together with the separator and the heat-resistant insulating layer interposed therebetween.
摘要翻译： 一种非水电解质二次电池，包括：具有含有复合氧化锂的正极合剂混合物的正极; 负极; 聚烯烃分离器; 非水电解质; 以及插入在正极和负极之间的耐热绝缘层。 正极材料混合物在200℃下的估计发热速率不大于50W / kg。 将正极和负极与隔板缠绕在一起，并且将耐热绝缘层插入其间。
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公开(公告)号：US20060286444A1
公开(公告)日：2006-12-21
申请号：US11473327
申请日：2006-06-23
CPC分类号： H01M4/131 , H01M2/1653 , H01M4/505 , H01M4/525 , H01M10/4235
摘要： A non-aqueous electrolyte secondary battery including: a positive electrode having a positive electrode material mixture containing a composite lithium oxide; a negative electrode; a polyolefin separator; a non-aqueous electrolyte; and a heat-resistant insulating layer interposed between the positive and negative electrodes. The positive electrode material mixture has an estimated heat generation rate at 200° C of not greater than 50 W/kg. The positive electrode and the negative electrode are wound together with the separator and the heat-resistant insulating layer interposed therebetween.
摘要翻译： 一种非水电解质二次电池，包括：具有含有复合氧化锂的正极合剂混合物的正极; 负极; 聚烯烃分离器; 非水电解质; 以及插入在正极和负极之间的耐热绝缘层。 正极材料混合物在200℃下的估计发热速率不大于50W / kg。 将正极和负极与隔板缠绕在一起，并且将耐热绝缘层插入其间。
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