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公开(公告)号：US20100136428A1
公开(公告)日：2010-06-03
申请号：US12596762
申请日：2008-11-19
IPC分类号： H01M4/02
CPC分类号： H01M4/38 , H01M4/13 , H01M4/139 , H01M4/386 , H01M4/387 , H01M10/0431 , H01M10/0525 , H01M10/4235 , Y02E60/122
摘要： The non-aqueous electrolyte secondary battery of the present invention is provided with an electrode plate group and a non-aqueous electrolyte, the electrode plate group including a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, a positive electrode lead connected to the positive electrode, and a negative electrode lead connected to the negative electrode. The energy density of the electrode plate group is 750 Wh/L or higher by volume, and the cross-sectional area of at least one of the positive electrode lead and the negative electrode lead is 5.5×10−5 to 1.2×10−2 cm2.
摘要翻译： 本发明的非水电解质二次电池具有电极板组和非水电解质，所述电极板组包括正极，负极，夹在正极和负极之间的隔板， 与正极连接的正极引线和与负极连接的负极引线。 电极板组的能量密度为750Wh / L以上，正极引线和负极引线的至少一方的截面积为5.5×10 -5〜1.2×10 -2 cm2。
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公开(公告)号：US20090098451A1
公开(公告)日：2009-04-16
申请号：US12247666
申请日：2008-10-08
IPC分类号： H01M4/02
CPC分类号： H01M10/0585 , H01M2/0227 , H01M4/134 , H01M4/70 , H01M10/0525 , H01M10/613 , H01M10/623 , H01M10/647 , H01M10/651 , H01M10/6553 , Y02T10/7011
摘要： In a lithium ion secondary battery including a flat-plate electrode assembly which is configured by stacking the positive electrode, the separator, and the negative electrode in the thickness direction thereof, each of the positive electrode and the negative electrode includes a current collector and an active material layer. Each of the current collector includes a substantially rectangular current collector body, a heat radiating portion, and a lead portion, and the heat radiating portions are projected toward the outside of the electrode assembly so as not to overlap with each other in the thickness direction of the electrode assembly. In this way, heat caused inside the lithium ion secondary battery can be diffused efficiently to the outside, and safety of the lithium ion secondary battery can be further increased, without complicating the battery structure and decreasing mechanical strength of the battery.
摘要翻译： 在包括通过在其厚度方向堆叠正极，隔板和负极而构成的平板电极组件的锂离子二次电池中，正电极和负电极都包括集电体和 活性物质层。 每个集电器包括基本上矩形的集电体，散热部分和引线部分，并且散热部分朝向电极组件的外部突出，以便在电极组件的外侧不会在厚度方向上彼此重叠 电极组件。 以这种方式，锂离子二次电池内产生的热可以有效地扩散到外部，并且可以进一步提高锂离子二次电池的安全性，而不会使电池结构复杂化并且降低电池的机械强度。
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公开(公告)号：US20100136393A1
公开(公告)日：2010-06-03
申请号：US12595001
申请日：2008-07-17
CPC分类号： H01M10/0525 , H01M4/485 , H01M4/505 , H01M4/525 , H01M2004/021
摘要： In a lithium ion secondary battery, a lithium-nickel-containing composite oxide that contains lithium and nickel is used as a positive electrode active material, and a negative electrode active material having a melting temperature of 1200° C. or less in a lithium-absorbed state is included in a negative electrode active material layer. By configuring as above, in the lithium ion secondary battery, it is possible to achieve higher capacity, higher output, and longer life, as well as further improved safety, and particularly in a nail penetration test, to suppress the heat generation due to internal short circuit and to reliably prevent the occurrence of thermal runaway.
摘要翻译： 在锂离子二次电池中，使用含有锂和镍的含锂镍复合氧化物作为正极活性物质，在锂离子二次电池中使用熔融温度为1200℃以下的负极活性物质， 吸收状态包括在负极活性物质层中。 通过如上构造，在锂离子二次电池中，可以实现更高的容量，更高的输出和更长的寿命，以及进一步提高安全性，特别是在钉子穿透试验中，抑制由内部产生的发热 短路并可靠地防止热失控的发生。
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4.发明申请NEGATIVE ELECTRODE CURRENT COLLECTOR FOR LITHIUM ION SECONDARY BATTERY, NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY 审中-公开用于锂离子二次电池的负极电流集电器，用于锂离子二次电池的负极和锂离子二次电池公开(公告)号：US20090042097A1
公开(公告)日：2009-02-12
申请号：US12187736
申请日：2008-08-07
CPC分类号： H01M4/139 , H01M4/0421 , H01M4/131 , H01M4/134 , H01M4/136 , H01M4/1391 , H01M4/1395 , H01M4/1397 , H01M4/70 , H01M10/052 , H01M10/0585
摘要： A lithium ion secondary battery includes a negative electrode that is shaped like waves in a section in the thickness direction. In the negative electrode, the ratio t1/t0 of the largest thickness t1 to the smallest thickness t0 is from 1.2 to 3.0. The negative electrode includes a thin-film negative electrode active material layer in which the ratio A/B of the volume A in a charged state to the volume B in a discharged state is 1.2 or more. The lithium ion secondary battery has high capacity, high power, long life, and improved safety. In particular, heat generation due to an internal short-circuit is significantly suppressed in a nail penetration test.
摘要翻译： 锂离子二次电池包括沿厚度方向的截面形状为波浪状的负极。 在负极中，最大厚度t1与最小厚度t0的比t1 / t0为1.2〜3.0。 负极包括薄膜负极活性物质层，其中处于放电状态的体积A与放电状态的体积B的比例A / B为1.2以上。 锂离子二次电池容量大，功率大，寿命长，安全性好。 特别地，在钉子穿透试验中，由于内部短路引起的发热被显着抑制。
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公开(公告)号：US08318347B2
公开(公告)日：2012-11-27
申请号：US12247666
申请日：2008-10-08
CPC分类号： H01M10/0585 , H01M2/0227 , H01M4/134 , H01M4/70 , H01M10/0525 , H01M10/613 , H01M10/623 , H01M10/647 , H01M10/651 , H01M10/6553 , Y02T10/7011
摘要： In a lithium ion secondary battery including a flat-plate electrode assembly which is configured by stacking the positive electrode, the separator, and the negative electrode in the thickness direction thereof, each of the positive electrode and the negative electrode includes a current collector and an active material layer. Each of the current collector includes a substantially rectangular current collector body, a heat radiating portion, and a lead portion, and the heat radiating portions are projected toward the outside of the electrode assembly so as not to overlap with each other in the thickness direction of the electrode assembly. In this way, heat caused inside the lithium ion secondary battery can be diffused efficiently to the outside, and safety of the lithium ion secondary battery can be further increased, without complicating the battery structure and decreasing mechanical strength of the battery.
摘要翻译： 在包括通过在其厚度方向堆叠正极，隔板和负极而构成的平板电极组件的锂离子二次电池中，正电极和负电极都包括集电体和 活性物质层。 每个集电器包括基本上矩形的集电体，散热部分和引线部分，并且散热部分朝向电极组件的外部突出，以便在电极组件的外侧不会在厚度方向上彼此重叠 电极组件。 以这种方式，锂离子二次电池内产生的热可以有效地扩散到外部，并且可以进一步提高锂离子二次电池的安全性，而不会使电池结构复杂化并且降低电池的机械强度。
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公开(公告)号：US09093704B2
公开(公告)日：2015-07-28
申请号：US12596762
申请日：2008-11-19
IPC分类号： H01M2/34 , H01M10/00 , H01M10/02 , H01M4/38 , H01M4/13 , H01M4/139 , H01M10/04 , H01M10/0525 , H01M10/42
CPC分类号： H01M4/38 , H01M4/13 , H01M4/139 , H01M4/386 , H01M4/387 , H01M10/0431 , H01M10/0525 , H01M10/4235 , Y02E60/122
摘要： The non-aqueous electrolyte secondary battery of the present invention is provided with an electrode plate group and a non-aqueous electrolyte, the electrode plate group including a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, a positive electrode lead connected to the positive electrode, and a negative electrode lead connected to the negative electrode. The energy density of the electrode plate group is 750 Wh/L or higher by volume, and the cross-sectional area of at least one of the positive electrode lead and the negative electrode lead is 5.5×10−5 to 1.2×10−2 cm2.
摘要翻译： 本发明的非水电解质二次电池具有电极板组和非水电解质，所述电极板组包括正极，负极，夹在正极和负极之间的隔板， 与正极连接的正极引线和与负极连接的负极引线。 电极板组的能量密度为750Wh / L以上，正极引线和负极引线的至少一方的截面积为5.5×10 -5〜1.2×10 -2 cm2。
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公开(公告)号：US20060286439A1
公开(公告)日：2006-12-21
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 <= （A + B）/ A <= 10。
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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：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：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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