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公开(公告)号：US20190190061A1
公开(公告)日：2019-06-20
申请号：US16223651
申请日：2018-12-18
发明人： Ichiro ARISE , Toshihiko OGATA , Junji SUZUKI
摘要： The present invention provides a nonaqueous electrolyte secondary battery containing (i) a separator containing a polyolefin porous film, (ii) a porous layer containing a polyvinylidene fluoride-based resin, (iii) a positive electrode plate having a capacitance falling within a certain range, and (iv) a negative electrode plate having a capacitance falling within a certain range, the polyvinylidene fluoride-based resin containing an α-form polyvinylidene fluoride-based resin in an amount of not less than 35.0 mol %.
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公开(公告)号：US20170117525A1
公开(公告)日：2017-04-27
申请号：US15302057
申请日：2015-04-06
发明人： Junji SUZUKI
IPC分类号： H01M2/16 , H01M10/0525 , B32B27/14 , B32B5/16 , B32B27/32
CPC分类号： H01M2/1686 , B32B5/16 , B32B5/18 , B32B27/14 , B32B27/32 , B32B2264/102 , B32B2457/10 , H01M2/1646 , H01M2/1653 , H01M2/166 , H01M10/052 , H01M10/0525
摘要： A laminated porous film includes a porous base material layer containing polyolefin as a main component; a filler layer containing inorganic particles as a main component; and a resin layer containing resin particles as a main component, the resin particles showing an endothermic curve satisfying conditions (1) and (2) below, the endothermic curve being obtained by differential scanning calorimetry. Condition (1): a temperature at which DDSC is not less than 0.10 mW/min/mg is not less than 70° C. Condition (2): endothermic amount calculated from an area of the endothermic curve in a range of not less than 50° C. and not more than 70° C. is not less than −20.0 J/g.
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公开(公告)号：US20190245176A1
公开(公告)日：2019-08-08
申请号：US16344232
申请日：2016-10-24
发明人： Junji SUZUKI , Toshihiko OGATA
IPC分类号： H01M2/16 , H01M10/058
CPC分类号： H01M2/16 , B32B5/24 , C08J9/26 , H01G11/52 , H01M10/058
摘要： Provided are a separator capable of being used for a secondary battery such as a nonaqueous electrolyte-solution secondary battery and a secondary battery including the separator. A separator having a first layer including a porous polyethylene and an organic additive is provided. A white index of the first layer is equal to or more than 85 and equal to or less than 98, and a reduction rate of diethyl carbonate dropped on the first layer is equal to or higher than 0.048 mg/s and equal to or lower than 0.067 mg/s. The to separator may further include a porous layer over the first layer.
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公开(公告)号：US20180301679A1
公开(公告)日：2018-10-18
申请号：US15592314
申请日：2017-05-11
发明人： Junji SUZUKI , Hiroki HASHIWAKI
IPC分类号： H01M2/16 , H01M10/0525
摘要： Realized is a nonaqueous electrolyte secondary battery coating material which is excellent in storage property, solution sending property, and coating property. The nonaqueous electrolyte secondary battery coating material has a first value and a second value which fall within respective given ranges, the first value being obtained by dividing a viscosity of the nonaqueous electrolyte secondary battery coating material at a shear rate of 0.1 sec−1 by a viscosity of the nonaqueous electrolyte secondary battery coating material at a shear rate of 100 sec−1, the second value being obtained by dividing the viscosity of the nonaqueous electrolyte secondary battery coating material at the shear rate of 0.1 sec−1 by a viscosity of the nonaqueous electrolyte secondary battery coating material at a shear rate of 10,000 sec−1.
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公开(公告)号：US20180183030A1
公开(公告)日：2018-06-28
申请号：US15727955
申请日：2017-10-09
发明人： Junji SUZUKI , Takamasa EGAWA
CPC分类号： H01M2/18 , B65H75/10 , B65H75/505 , H01M2/14 , H01M2/145
摘要： The invention provides for a reduction in the period of time necessary for recycling a separator winding core around which a nonaqueous electrolyte secondary battery separator is wound. The separator winding core is described by the Munsell color system as (i) a lightness of not less than 3.0 but not more than 9.2 and (ii) a chroma of not less than 0.5.
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公开(公告)号：US20170155119A1
公开(公告)日：2017-06-01
申请号：US15362874
申请日：2016-11-29
发明人： Junji SUZUKI
IPC分类号： H01M2/16 , H01M10/0525
CPC分类号： H01M2/1686 , H01M2/1653 , H01M10/0525 , Y02T10/7011
摘要： Provided are (i) a nonaqueous electrolyte secondary battery separator including a porous film, the nonaqueous electrolyte secondary battery separator having a lightness (L*) of not lower than 83 and not higher than 95 and a white index (WI) of not lower than 85 and not higher than 98, and allowing a nonaqueous electrolyte secondary battery to have an excellent rate capacity maintaining property, and (ii) a nonaqueous electrolyte secondary battery.
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公开(公告)号：US20170025659A1
公开(公告)日：2017-01-26
申请号：US15302201
申请日：2015-04-03
发明人： Junji SUZUKI
CPC分类号： H01M2/145 , H01M2/1646 , H01M2/166 , H01M2/1686 , H01M10/052 , H01M10/4235
摘要： A method is provided for producing a laminated porous film including: a porous base material layer containing polyolefin as a main component; a filler layer containing inorganic particles as a main component; and a resin layer containing resin particles as a main component, the filler layer and resin layer being provided on opposite surfaces of the porous base material layer. The method includes steps of: applying, on one surface of the porous base material layer, a coating solution containing more than 50 wt % of inorganic particles, and drying the coating solution to form a filler layer, and thereafter applying, on the other surface of the porous base material layer, a coating solution containing more than 50 wt % of resin particles, and drying the coating solution to form a resin layer, the weight percentages (wt %) being based on total weight of components other than the medium of each coating solution.
摘要翻译： 提供了一种制造层压多孔膜的方法，包括：以聚烯烃为主要成分的多孔基材层; 含有无机颗粒作为主要成分的填料层; 和以树脂粒子为主要成分的树脂层，所述填充层和树脂层设置在所述多孔基材层的相对面上。 该方法包括以下步骤：在多孔基材层的一个表面上涂布含有超过50重量％的无机颗粒的涂布溶液，并干燥涂布溶液以形成填料层，然后在另一表面 的多孔基材层，含有50重量％以上的树脂粒子的涂布液，干燥该涂布液以形成树脂层，重量百分比（wt％）以除介质以外的成分的总重量 每个涂层溶液。
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公开(公告)号：US20190245179A1
公开(公告)日：2019-08-08
申请号：US16344084
申请日：2016-10-24
发明人： Hiroki HASHIWAKI , Chikara MURAKAMI , Junji SUZUKI
摘要： Provided is a separator capable of suppressing an increase in internal resistance and a decrease in a battery performance. A separator having a first layer consisting of a porous polyolefin and an organic antioxidant and a secondary battery including the separator are provided. The first layer has a parameter X, defined by the following equation, equal to or more than 0 and equal to or less than 20, X = 100 MD tan δ - TD tan δ MD tan δ + TD tan δ 2 where MD tan δ and TD tan δ are respectively a loss tangent in a flow direction and a loss tangent in a width direction which are obtained by a viscoelasticity measurement of the first layer at a temperature of 90° C. and a frequency of 10 Hz. A white index of the first layer is equal to or more than 85 and equal to or less than 98.
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公开(公告)号：US20190190080A1
公开(公告)日：2019-06-20
申请号：US16224803
申请日：2018-12-19
发明人： Ichiro ARISE , Toshihiko OGATA , Kosuke KURAKANE , Junji SUZUKI
CPC分类号： H01M10/0585 , H01M2/16 , H01M4/131 , H01M4/133 , H01M4/48 , H01M4/583 , H01M10/0525 , H01M10/48
摘要： A nonaqueous electrolyte secondary battery in accordance with an embodiment of the present invention includes: a separator including a polyolefin porous film; a porous layer containing a polyvinylidene fluoride-based resin; a positive electrode plate, a bend number of which being not less than 130, the bend number indicating how many times the positive electrode plate bends before peeling of a positive electrode active material layer occurs; and a negative electrode plate, a bend number of which being not less than 1650, the bend number indicating how many times the negative electrode plate bends before peeling of a negative electrode active material layer occurs, the polyvinylidene fluoride-based resin containing not less than 35.0 mol % of an α-form polyvinylidene fluoride-based resin.
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公开(公告)号：US20190189993A1
公开(公告)日：2019-06-20
申请号：US16224111
申请日：2018-12-18
发明人： Ichiro ARISE , Toshihiko OGATA , Kosuke KURAKANE , Junji SUZUKI
CPC分类号： H01M2/1686 , H01M2/1653 , H01M4/483 , H01M4/583
摘要： A nonaqueous electrolyte secondary battery includes: a separator including a polyolefin porous film; a porous layer containing a polyvinylidene fluoride-based resin; and a positive electrode plate and a negative electrode plate for each of which the result of a scratch test in the width direction and the result of a scratch test in the flow direction are each within a predetermined range, the polyvinylidene fluoride-based resin containing an α-form polyvinylidene fluoride-based resin in an amount of not less than 35.0 mol %.
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