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公开(公告)号：US10044071B2
公开(公告)日：2018-08-07
申请号：US15024068
申请日：2014-06-09
发明人： Sayaka Yonehara , Keisuke Matsumoto , Takashi Honda , Kousuke Hagiyama , Fumihiro Kawamura , Osamu Shimamura , Kazuki Miyatake , Ikuma Matsuzaki , Ryuuta Yamaguchi , Kuniharu Nomoto
IPC分类号： H01M10/42 , H01M10/0585 , H01M10/0525 , H01M10/44 , H01M10/0567
摘要： The present invention provides a non-aqueous electrolyte secondary battery with various improved battery characteristics and a method for manufacturing such a non-aqueous electrolyte secondary battery. In the present invention, the battery manufacturing method includes accommodating and sealing a flat battery element (4) in which a positive electrode plate (41) and a negative electrode plate (42) stacked together via a separator (43), together with a non-aqueous electrolyte including a surplus electrolyte and at least one kind of electrolyte additive, in a laminate film exterior member (5), and then, subjecting the thus-assembled battery (1) to charging operation including at least initial charging in a state where a pressure is applied to a flat surface of the battery element from the outside of the exterior member (5).
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公开(公告)号：US09966605B2
公开(公告)日：2018-05-08
申请号：US14780089
申请日：2014-03-26
发明人： Ryuuta Yamaguchi , Takashi Honda , Kousuke Hagiyama , Ikuma Matsuzaki , Takeshi Miyamoto , Osamu Shimamura , Keisuke Matsumoto
IPC分类号： H01M4/62 , H01M2/18 , H01M4/13 , H01M10/052 , H01M10/04
CPC分类号： H01M4/621 , H01M2/18 , H01M4/13 , H01M10/0481 , H01M10/052 , H01M2220/20 , Y02E60/122 , Y02T10/7011
摘要： A non-aqueous electrolyte secondary battery can efficiently discharge the gas generated to the outside of the electrode and exhibits a low decrease in battery capacity even when used for a long period of time in the case of using an aqueous binder as the binder of a negative electrode active material. The non-aqueous electrolyte secondary battery has a positive electrode active material layer is formed on a surface of a positive electrode current collector, a negative electrode active material layer is formed on a surface of a negative electrode current collector, and a separator, wherein the density of the negative electrode active material layer is from 1.3 to 1.6 g/cm3, the negative electrode active material layer contains an aqueous binder, and the surface center line average roughness (Ra) of a surface on a separator side of the negative electrode active material layer is from 0.5 to 1.0 μm.
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公开(公告)号：US09899649B2
公开(公告)日：2018-02-20
申请号：US14780395
申请日：2014-03-26
发明人： Fumihiro Kawamura , Ikuma Matsuzaki , Ryuta Yamaguchi , Kosuke Hagiyama , Takashi Honda , Takeshi Miyamoto , Osamu Shimamura , Keisuke Matsumoto
IPC分类号： H01M2/12 , H01M4/13 , H01M10/0566 , H01M10/0585 , H01M2/16 , H01M10/0525 , H01M4/62 , H01M10/04 , H01M2/02 , H01M4/02 , H01M4/133
CPC分类号： H01M2/12 , H01M2/0275 , H01M2/1653 , H01M2/166 , H01M2/1686 , H01M4/13 , H01M4/133 , H01M4/622 , H01M10/0413 , H01M10/0468 , H01M10/049 , H01M10/0525 , H01M10/0566 , H01M10/0585 , H01M2004/021 , H01M2220/20 , Y02T10/7011
摘要： A non-aqueous electrolyte secondary battery, when using an aqueous binder as a binder for a negative electrode active material, effectively exhausts the gas generated from an electrode, and thus, even when using it for a long period of time, a decrease in battery capacity is low. The non-aqueous electrolyte secondary battery includes a positive electrode active material layer on a surface of a positive electrode current collector, a negative electrode active material layer comprising an aqueous binder on a surface of a negative electrode current collector, a separator for maintaining an electrolytic solution, and a gas releasing means for releasing a gas generated within the power generating element to an extra space inside of the outer casing, and in which the ratio value of a volume of the extra space to a volume of pores included in the power generating element is 0.5 to 1.0.
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公开(公告)号：US09847516B2
公开(公告)日：2017-12-19
申请号：US14780460
申请日：2014-03-26
发明人： Kosuke Hagiyama , Takashi Honda , Ryuta Yamaguchi , Ikuma Matsuzaki , Takeshi Miyamoto , Osamu Shimamura , Keisuke Matsumoto
IPC分类号： H01M4/02 , H01M4/36 , H01M2/16 , H01M2/18 , H01M6/12 , H01M6/46 , H01M2/02 , H01M4/13 , H01M10/05 , H01M10/0585 , H01M4/62 , H01M10/04 , H01M2/08 , H01M10/0525 , H01M10/42
CPC分类号： H01M2/024 , H01M2/0262 , H01M2/08 , H01M4/13 , H01M4/621 , H01M4/622 , H01M10/0468 , H01M10/05 , H01M10/0525 , H01M10/0585 , H01M2004/021 , H01M2010/4292 , H01M2220/20
摘要： A non-aqueous electrolyte secondary battery allows gas generated when an aqueous binder is used as a binder of a negative electrode active material to be effectively discharged from the electrode, and has small decrease of the battery capacity despite use over a long period of time. The non-aqueous electrolyte secondary battery has a positive electrode active material layer, a negative electrode active material layer, and a separator. The density of the negative electrode active material layer is 1.4 to 1.6 g/cm3, an electrolyte solution layer is disposed between at least one layer of the negative electrode active material layer and the positive electrode active material layer, and the separator, and the ratio of total thickness of the positive electrode, the negative electrode and the separator to total thickness of the positive electrode, the negative electrode, the separator and the electrolyte solution layer, is 0.85 or more and less than 1.0.
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公开(公告)号：US20140287295A1
公开(公告)日：2014-09-25
申请号：US14356254
申请日：2012-10-09
CPC分类号： H01G11/52 , B32B5/022 , B32B5/024 , B32B5/30 , B32B2260/025 , B32B2260/046 , B32B2264/102 , B32B2264/105 , B32B2307/304 , B32B2307/306 , B32B2457/10 , H01M2/166 , H01M2/1686 , H01M10/052 , Y02E60/13 , Y02T10/7011 , Y02T10/7022
摘要： A separator with a heat resistant insulation layer includes a porous substrate, and a heat resistant insulation layer formed on one surface or both surfaces of the porous substrate and containing at least one kind of inorganic particles and at least one kind of a binder, wherein a content mass ratio of the inorganic particles to the binder in the heat resistant insulation layer is in a range from 99:1 to 85:15, a BET specific surface area of the inorganic particles is in a range from 3 m2/g to 50 m2/g, and a ratio of the moisture content per mass of the binder to the BET specific surface area of the inorganic particles is greater than 0.0001 and smaller than 2.
摘要翻译： 具有耐热绝缘层的隔膜包括多孔基材和形成在多孔基材的一个表面或两个表面上并含有至少一种无机颗粒和至少一种粘合剂的耐热绝缘层，其中a 无机粒子与耐热绝缘层中的粘合剂的质量比在99:1〜85:15的范围内，无机粒子的BET比表面积为3m 2 / g〜50m 2 / g，粘合剂的质量含量与无机粒子的BET比表面积的比例大于0.0001且小于2。
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公开(公告)号：US09496535B2
公开(公告)日：2016-11-15
申请号：US14349006
申请日：2012-09-28
发明人： Takashi Honda
IPC分类号： H01M2/14 , H01M2/16 , H01G11/52 , H01M10/0525
CPC分类号： H01M2/1686 , H01G11/52 , H01M2/145 , H01M2/1646 , H01M2/1653 , H01M10/0525 , H01M2220/20 , Y02E60/122 , Y02E60/13 , Y02T10/7011 , Y02T10/7022
摘要： A separator with a heat resistant insulation layer includes a porous substrate layer and a heat resistant insulation layer formed on one surface or both surfaces of the porous substrate layer and containing inorganic particles and a binder. The ratio of tensile strength in MD direction×fracture strain in MD direction to the tensile strength in TD direction×fracture strain in RD direction is in a range from 0.3 to 20. A ratio of the unit mass of the heat resistant insulation layer to the unit mass of the porous substrate layer is in a range from 0.5 to 2.5. Accordingly, the separator with a heat resistant insulation layer can have improved resistance to an internal short-circuit (shorting resistance).
摘要翻译： 具有耐热绝缘层的隔膜包括多孔基材层和形成在多孔基材层的一个表面或两个表面上并含有无机颗粒和粘合剂的耐热绝缘层。 MD方向的拉伸强度×MD方向的断裂应变与TD方向的拉伸强度×RD方向的断裂应变的比例在0.3〜20的范围内。耐热绝缘层的单位质量与 多孔基材层的单位质量为0.5〜2.5。 因此，具有耐热绝缘层的隔板可以具有改善的对内部短路（短路电阻）的抵抗性。
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公开(公告)号：US09847518B2
公开(公告)日：2017-12-19
申请号：US14349262
申请日：2012-10-02
发明人： Tamaki Hirai , Miyuki Nakai , Takashi Honda
IPC分类号： H01M2/16 , H01M10/0525
CPC分类号： H01M2/1686 , H01M2/1653 , H01M2/166 , H01M10/0525 , Y02T10/7011
摘要： A separator with a heat-resistant insulation layer for an electric device includes a resin porous substrate and a heat-resistant insulation layer containing heat-resistant particles and a binder, the heat-resistant insulation layer being formed on at least one surface of the resin porous substrate. The heat-resistant particles contain alumina and a parameter X is 0.018 to 0.336. Parameter X is represented by X=Ca×Rzjis/D, wherein Cα is a ratio of the alumina, which occupies the heat-resistant particles, Rzjis is surface roughness of a surface of the heat-resistant insulation layer, the surface being opposite the resin porous substrate, and D is a thickness of the heat-resistant insulation layer.
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公开(公告)号：US09620782B2
公开(公告)日：2017-04-11
申请号：US14779630
申请日：2014-03-26
IPC分类号： H01M4/62 , H01M4/13 , H01M10/052 , H01M10/0566 , H01M10/0585 , H01M4/02
CPC分类号： H01M4/622 , H01M4/13 , H01M4/621 , H01M10/052 , H01M10/0566 , H01M10/0585 , H01M2004/021 , Y02T10/7011
摘要： Wettability of positive and negative electrode active material layers is improved by having the ratio of the liquid absorption speed of an electrolyte to the positive and negative electrode active material layers in an appropriate range when an aqueous binder is used in the negative electrode active material layer. The non-aqueous electrolyte secondary battery has a power generating element having a positive electrode active material layer on a surface of a positive electrode current collector, a negative electrode active material layer containing an aqueous binder on a surface of a negative electrode current collector, and a separator, and Tc/Ta is in the range of 0.6 to 1.3 when Tc is the soak-in time of the electrolyte liquid into the positive electrode active material layer and Ta is the soak-in time of the electrolyte liquid into the negative electrode active material layer.
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公开(公告)号：US20190221808A1
公开(公告)日：2019-07-18
申请号：US16337047
申请日：2017-09-28
IPC分类号： H01M2/16 , H01M10/0525 , H01M10/0585 , H01M4/38 , H01M4/48
CPC分类号： H01M2/168 , H01M4/02 , H01M4/134 , H01M4/386 , H01M4/483 , H01M10/0525 , H01M10/058 , H01M10/0583 , H01M10/0585 , H01M2004/027
摘要： A secondary battery suppresses generation of wrinkle at the outer peripheral edge portion of a negative electrode plate due to expansion of a negative electrode active material layer with use. The secondary battery includes a positive electrode plate with a positive electrode active material layer disposed on a first current collector, and a negative electrode plate with a negative electrode active material layer having an area larger than an area of the positive electrode active material layer disposed on a second current collector. The negative electrode plate includes a facing portion facing the positive electrode active material layer and a non-facing portion. The negative electrode plate and a separator are bonded through a bonding layer. The bonding strength of a second bonding portion that bonds the non-facing portion to the separator is larger than the bonding strength of a first bonding portion that bonds the facing portion to the separator.
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公开(公告)号：US09543077B2
公开(公告)日：2017-01-10
申请号：US14356254
申请日：2012-10-09
IPC分类号： H01M2/16 , H01G11/52 , B32B5/02 , B32B5/30 , H01M10/052
CPC分类号： H01G11/52 , B32B5/022 , B32B5/024 , B32B5/30 , B32B2260/025 , B32B2260/046 , B32B2264/102 , B32B2264/105 , B32B2307/304 , B32B2307/306 , B32B2457/10 , H01M2/166 , H01M2/1686 , H01M10/052 , Y02E60/13 , Y02T10/7011 , Y02T10/7022
摘要： A separator with a heat resistant insulation layer includes a porous substrate, and a heat resistant insulation layer formed on one surface or both surfaces of the porous substrate and containing at least one kind of inorganic particles and at least one kind of a binder, wherein a content mass ratio of the inorganic particles to the binder in the heat resistant insulation layer is in a range from 99:1 to 85:15, a BET specific surface area of the inorganic particles is in a range from 3 m2/g to 50 m2/g, and a ratio of the moisture content per mass of the binder to the BET specific surface area of the inorganic particles is greater than 0.0001 and smaller than 2.
摘要翻译： 具有耐热绝缘层的隔膜包括多孔基材和形成在多孔基材的一个表面或两个表面上并含有至少一种无机颗粒和至少一种粘合剂的耐热绝缘层，其中a 无机粒子与耐热绝缘层中的粘合剂的质量比在99:1〜85:15的范围内，无机粒子的BET比表面积为3m 2 / g〜50m 2 / g，粘合剂的质量含量与无机粒子的BET比表面积的比例大于0.0001且小于2。
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