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公开(公告)号：US09806336B2
公开(公告)日：2017-10-31
申请号：US14429583
申请日：2012-09-21
CPC分类号： H01M4/366 , H01M2/345 , H01M4/13 , H01M4/139 , H01M10/05 , H01M10/0525 , H01M2004/021 , H01M2004/028
摘要： Provided is a positive electrode for nonaqueous electrolyte secondary batteries including a positive electrode mixture layer formed of a positive electrode mixture paste containing a positive electrode active material. The positive electrode active material has a particle diameter of 2 μm or more and less than 7 μm. The positive electrode mixture layer includes a first mixture layer in which a maximum diameter of pores formed between particles of the positive electrode active material is more than 1.0 μm and 5.0 μm or less, and a second mixture layer in which a maximum diameter of the pores is 1.0 μm or less. The second mixture layer is arranged closer to the current collector than the first mixture layer. A ratio of a thickness of the first mixture layer to a thickness of the second mixture layer is more than 0.1 and 1.0 or less.
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2.发明申请公开(公告)号：US20150255786A1
公开(公告)日：2015-09-10
申请号：US14429583
申请日：2012-09-21
CPC分类号： H01M4/366 , H01M2/345 , H01M4/13 , H01M4/139 , H01M10/05 , H01M10/0525 , H01M2004/021 , H01M2004/028
摘要： Provided is a positive electrode for nonaqueous electrolyte secondary batteries including a positive electrode mixture layer formed of a positive electrode mixture paste containing a positive electrode active material. The positive electrode active material has a particle diameter of 2 μm or more and less than 7 μm. The positive electrode mixture layer includes a first mixture layer in which a maximum diameter of pores formed between particles of the positive electrode active material is more than 1.0 μm and 5.0 μm or less, and a second mixture layer in which a maximum diameter of the pores is 1.0 μm or less. The second mixture layer is arranged closer to the current collector than the first mixture layer. A ratio of a thickness of the first mixture layer to a thickness of the second mixture layer is more than 0.1 and 1.0 or less.
摘要翻译： 本发明提供一种非水电解质二次电池用正极，其包括由含有正极活性物质的正极混合物糊形成的正极合剂层。 正极活性物质的粒径为2μm以上且小于7μm。 正极复合层包括第一混合层，其中在正极活性物质的颗粒之间形成的孔的最大直径大于1.0μm和5.0μm以下，第二混合层，其中孔的最大直径 为1.0μm以下。 第二混合物层比第一混合物层更靠近集电体布置。 第一混合物层的厚度与第二混合物层的厚度的比例大于0.1和1.0以下。
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公开(公告)号：US20150221951A1
公开(公告)日：2015-08-06
申请号：US14426799
申请日：2012-09-10
IPC分类号： H01M4/62 , H01M10/052
CPC分类号： H01M4/62 , H01M4/13 , H01M4/139 , H01M4/621 , H01M4/622 , H01M10/052 , H01M2220/20 , Y02E60/122 , Y02T10/7011
摘要： This invention provides a lithium secondary battery that comprises a positive electrode comprising a positive electrode active material layer and a negative electrode comprising a negative electrode active material layer. The positive electrode active material layer and the negative electrode active material layer are placed to face each other. The negative electrode active material layer has an area A comprising a non-positive-electrode-facing portion that does not face the positive electrode active material layer. The area A comprises a negative electrode active material, a hot-melt binder and a temperature-sensitive thickener. The hot-melt binder has a melting point and the temperature-sensitive thickener has a gelation temperature both in a range of 45° C. to 100° C.
摘要翻译： 本发明提供一种锂二次电池，其包括正极，其包括正极活性物质层和包含负极活性物质层的负极。 将正极活性物质层和负极活性物质层配置成彼此相对。 负极活性物质层具有包含不与正极活性物质层相对的非正极对向部的区域A. 区域A包括负极活性材料，热熔粘合剂和温度敏感增稠剂。 热熔粘合剂具有熔点，并且温度敏感性增稠剂的凝胶化温度均在45℃至100℃的范围内。
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公开(公告)号：US10020511B2
公开(公告)日：2018-07-10
申请号：US14426799
申请日：2012-09-10
IPC分类号： H01M4/62 , H01M10/052 , H01M4/13 , H01M4/139
CPC分类号： H01M4/62 , H01M4/13 , H01M4/139 , H01M4/621 , H01M4/622 , H01M10/052 , H01M2220/20 , Y02E60/122 , Y02T10/7011
摘要： This invention provides a lithium secondary battery that comprises a positive electrode comprising a positive electrode active material layer and a negative electrode comprising a negative electrode active material layer. The positive electrode active material layer and the negative electrode active material layer are placed to face each other. The negative electrode active material layer has an area A comprising a non-positive-electrode-facing portion that does not face the positive electrode active material layer. The area A comprises a negative electrode active material, a hot-melt binder and a temperature-sensitive thickener. The hot-melt binder has a melting point and the temperature-sensitive thickener has a gelation temperature both in a range of 45° C. to 100° C.
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公开(公告)号：US09559383B2
公开(公告)日：2017-01-31
申请号：US14372299
申请日：2012-01-17
申请人： Masahiro Morita , Toshihiko Mitsuhashi , Keisuke Ohara , Yuji Yokoyama , Yusuke Fukumoto , Tatsuya Hashimoto
发明人： Masahiro Morita , Toshihiko Mitsuhashi , Keisuke Ohara , Yuji Yokoyama , Yusuke Fukumoto , Tatsuya Hashimoto
IPC分类号： H01M10/05 , H01M10/0567 , H01M10/0525 , H01M10/42 , H01M2/34
CPC分类号： H01M10/0567 , H01M2/345 , H01M10/0525 , H01M10/4235 , H01M2220/20 , Y02E60/122 , Y02T10/7011
摘要： The present invention provides a sealed lithium secondary battery in which redox shuttle reactions of an aromatic compound that is an overcharge inhibitor are inhibited, and the aromatic compound decomposes appropriately, and a desired amount of gas can be generated more stably than in conventional instances, even in high-temperature environments. In the sealed lithium secondary battery (100), an electrode assembly (80) and an electrolyte are accommodated in a battery case (50) that is provided with a current interrupt device (30). The electrolyte comprises a compound that is capable of suppressing drops in viscosity of the electrolyte as a result of a rise in temperature in a temperature region up to 100° C., and an aromatic compound capable of generating hydrogen gas when a predetermined battery voltage is exceeded.
摘要翻译： 本发明提供一种密封的锂二次电池，其中抑制了作为过充电抑制剂的芳族化合物的氧化还原穿梭反应，并且芳族化合物适当地分解，并且与常规情况相比可以更稳定地产生所需量的气体，甚至 在高温环境中。 在密封锂二次电池（100）中，电极组件（80）和电解质容纳在设置有电流中断装置（30）的电池壳体（50）中。 该电解质包含能够抑制由于温度上升到100℃而导致的电解液粘度降低的化合物，以及当预定的电池电压为 超过了
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公开(公告)号：US20140342200A1
公开(公告)日：2014-11-20
申请号：US14372299
申请日：2012-01-17
申请人： Masahiro Morita , Toshihiko Mitsuhashi , Keisuke Ohara , Yuji Yokoyama , Yusuke Fukumoto , Tatsuya Hashimoto
发明人： Masahiro Morita , Toshihiko Mitsuhashi , Keisuke Ohara , Yuji Yokoyama , Yusuke Fukumoto , Tatsuya Hashimoto
IPC分类号： H01M10/0567 , H01M10/42 , H01M10/0525
CPC分类号： H01M10/0567 , H01M2/345 , H01M10/0525 , H01M10/4235 , H01M2220/20 , Y02E60/122 , Y02T10/7011
摘要： The present invention provides a sealed lithium secondary battery in which redox shuttle reactions of an aromatic compound that is an overcharge inhibitor are inhibited, and the aromatic compound decomposes appropriately, and a desired amount of gas can be generated more stably than in conventional instances, even in high-temperature environments. In the sealed lithium secondary battery (100), an electrode assembly (80) and an electrolyte are accommodated in a battery case (50) that is provided with a current interrupt device (30). The electrolyte comprises a compound that is capable of suppressing drops in viscosity of the electrolyte as a result of a rise in temperature in a temperature region up to 100° C., and an aromatic compound capable of generating hydrogen gas when a predetermined battery voltage is exceeded.
摘要翻译： 本发明提供一种密封的锂二次电池，其中抑制了作为过充电抑制剂的芳族化合物的氧化还原穿梭反应，并且芳族化合物适当地分解，并且与常规情况相比可以更稳定地产生所需量的气体，甚至 在高温环境中。 在密封的锂二次电池（100）中，电极组件（80）和电解质容纳在设置有电流中断装置（30）的电池壳体（50）中。 该电解质包含能够抑制由于温度上升到100℃而导致的电解液粘度降低的化合物，以及当预定的电池电压为 超过了
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公开(公告)号：US09595745B2
公开(公告)日：2017-03-14
申请号：US14234697
申请日：2011-07-25
IPC分类号： H01M2/18 , H01M10/658 , H01M2/16 , H01M10/052
CPC分类号： H01M10/625 , H01M2/1666 , H01M2/1673 , H01M10/052 , Y02T10/7011
摘要： A nonaqueous electrolyte secondary battery 100 according to this invention includes a positive electrode 10, a negative electrode 20, a separator 40 interposed between the positive electrode 10 and the negative electrode 20, and a nonaqueous electrolyte solution. A porous heat-resistant layer 42 is additionally provided between the separator 40 and at least one electrode from among the positive electrode 10 and the negative electrode 20. The porous heat-resistant layer 42 includes hollow particles 44 made of an inorganic material, and a binder 46.
摘要翻译： 根据本发明的非水电解质二次电池100包括正极10，负极20，介于正极10和负极20之间的隔板40和非水电解质溶液。 在隔板40和正极10和负极20之间的至少一个电极之间另外设有多孔耐热层42.多孔耐热层42包括由无机材料制成的中空颗粒44和 粘合剂46。
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公开(公告)号：US20130101876A1
公开(公告)日：2013-04-25
申请号：US13122173
申请日：2010-06-11
IPC分类号： H01M10/04
CPC分类号： H01M10/0431 , H01M2/1686 , H01M4/13 , H01M4/139 , H01M4/366 , H01M10/052 , H01M10/0587 , Y02T10/7011 , Y10T29/49115
摘要： A lithium secondary battery provided by the present invention includes a spirally wound electrode body in which a positive electrode sheet and a negative electrode sheet are spirally wound with a separator sheet 40 interposed therebetween, wherein on a sheet surface of at least any one from among the positive electrode sheet, negative electrode sheet, and separator sheet 40 constituting the spirally wound electrode body, a porous layer 60 is formed along a longitudinal direction of the sheet 40, and the porous layer 60 is thicker in a spiral winding direction of the spirally wound electrode body in a winding center portion 62 than in a winding outer portion 64.
摘要翻译： 本发明提供的锂二次电池包括螺旋卷绕的电极体，其中正极片和负极片螺旋地缠绕有介于其间的隔板片40，其中，在 构成螺旋卷绕电极体的正极片，负极片和隔板片40沿着片40的长度方向形成多孔层60，多孔层60在螺旋缠绕的螺旋缠绕方向上较厚 卷绕中心部分62中的电极体比卷绕外部部分64中的电极体。
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公开(公告)号：US08367245B2
公开(公告)日：2013-02-05
申请号：US11520571
申请日：2006-09-14
申请人： Yusuke Fukumoto , Kaoru Inoue
发明人： Yusuke Fukumoto , Kaoru Inoue
IPC分类号： H01M6/10
CPC分类号： H01M2/166 , H01M4/13 , H01M10/0525 , H01M10/0587 , H01M2004/021
摘要： A non-aqueous electrolyte secondary battery having a high negative electrode energy density, good safety and high discharge characteristics is provided without damaging manufacturing facilities. The non-aqueous electrolyte secondary battery includes a positive electrode, a negative electrode, a porous heat-resistant layer interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte. The negative electrode comprises a negative electrode current collector and a negative electrode mixture layer on a surface of the negative electrode current collector, and the negative electrode mixture layer has an active material density of 1.5 g/ml to 1.8 g/ml. The porous heat-resistant layer is carried on the negative electrode, and the porous heat-resistant layer comprises magnesium oxide particles having a mean particle size of 0.5 μm to 2 μm.
摘要翻译： 提供具有高的负极能量密度，良好的安全性和高放电特性的非水电解质二次电池，而不损坏制造设备。 非水电解质二次电池包括正极，负极，介于正极和负极之间的多孔耐热层和非水电解质。 负极包含负极集电体的负极集电体和负极混合层，负极复合层的活性物质密度为1.5g / ml〜1.8g / ml。 多孔耐热层承载在负极上，多孔耐热层包括平均粒径为0.5μm至2μm的氧化镁颗粒。
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公开(公告)号：US08211574B2
公开(公告)日：2012-07-03
申请号：US10568536
申请日：2004-09-13
申请人： Kohei Suzuki , Tsumoru Ohata , Junji Nakajima , Akiko Fujino , Shigeo Ikuta , Tetsuya Hayashi , Yusuke Fukumoto , Shinji Kasamatsu
发明人： Kohei Suzuki , Tsumoru Ohata , Junji Nakajima , Akiko Fujino , Shigeo Ikuta , Tetsuya Hayashi , Yusuke Fukumoto , Shinji Kasamatsu
IPC分类号： H01M4/68
CPC分类号： H01M2/166 , H01M2/1673 , H01M2/168 , H01M2/18 , H01M4/133 , H01M4/134 , H01M4/621 , H01M10/052 , H01M10/0525 , H01M10/4235
摘要： A lithium ion secondary battery includes a positive electrode capable of absorbing and desorbing lithium ion, a negative electrode capable of absorbing and desorbing lithium ion, a porous film interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte, the porous film being adhered to a surface of at least the negative electrode. The porous film includes an inorganic filler and a first binder: The content of the first binder in the porous film is 1.5 to 8 parts by weight per 100 parts by weight of the filler: The first binder includes a first rubber including an acrylonitrile unit: The first rubber is water-insoluble and has a decomposition temperature of 250° C. or higher. The negative electrode includes a negative electrode active material capable of absorbing and desorbing lithium ion and a second binder, and the second binder includes a second rubber particle and a water-soluble polymer.
摘要翻译： 锂离子二次电池包括能够吸收和解吸锂离子的正极，能够吸收和解吸锂离子的负极，介于正极和负极之间的多孔膜和非水电解质，多孔 膜至少粘附在至少负极的表面上。 多孔膜包括无机填料和第一粘合剂：多孔膜中的第一粘合剂的含量相对于100重量份的填料为1.5〜8重量份。第一粘合剂包括含有丙烯腈单元的第一橡胶： 第一橡胶是水不溶性的，分解温度为250℃以上。 负极包括能够吸收和解吸锂离子的负极活性物质和第二粘合剂，第二粘合剂包括第二橡胶颗粒和水溶性聚合物。
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