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公开(公告)号：US09054388B2
公开(公告)日：2015-06-09
申请号：US13864133
申请日：2013-04-16
Applicant: GS Yuasa International, Ltd.
Inventor： Akihiko Miyazaki , Sumio Mori , Tomonori Kako
IPC: H01M4/00 , H01M10/04 , H01M2/16 , H01M10/0587
CPC classification number: H01M10/0431 , H01M2/1686 , H01M10/0468 , H01M10/0587 , Y10T29/49114 , Y10T29/53135
Abstract: Provided is an energy storage device which employs the use of a separator provided with a layer having poor thermal properties such as a heat resistant coated layer and is capable of inhibiting a decrease in performance. The energy storage device includes: a wound body including a positive electrode, a negative electrode, and separators which are layered and wound, the separators being interposed between the positive electrode and the negative electrode and having a first surface and a second surface, the first surface having thermal bonding properties superior to thermal bonding properties of the second surface; and an insulation sheet wound around an outermost layer of the wound body. At least one of the separators is bonded to the insulation sheet via the first surface thereof.
Abstract translation: 提供一种能量储存装置，其使用具有耐热性能差的层的隔膜，例如耐热涂层，并且能够抑制性能的降低。 能量存储装置包括：卷绕体，其包括正极，负极和层叠并卷绕的隔板，所述隔板插入在正极和负极之间并具有第一表面和第二表面，第一 具有优于第二表面的热粘合性能的热粘合性能的表面; 以及缠绕在所述卷绕体的最外层的绝缘片。 至少一个分离器经由其第一表面结合到绝缘片。
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22.发明授权Energy storage element, method of producing energy storage element, and non-aqueous electrolyte 有权蓄能元件，储能元件的制造方法以及非水电解质公开(公告)号：US08986881B2
公开(公告)日：2015-03-24
申请号：US13739170
申请日：2013-01-11
Applicant: GS Yuasa International Ltd.
Inventor： Tomonori Kako , Sumio Mori , Kenta Nakai , Akihiko Miyazaki
IPC: H01M10/26 , H01M10/0567 , H01M4/131 , H01M10/056 , H01M4/505 , H01M4/133 , H01M4/1391 , H01M4/1393 , H01M10/0525 , H01M10/44
CPC classification number: H01M10/056 , H01M4/131 , H01M4/133 , H01M4/1391 , H01M4/1393 , H01M4/505 , H01M4/525 , H01M4/587 , H01M10/0525 , H01M10/0567 , H01M10/44 , Y02E60/122 , Y10T29/49108
Abstract: An energy storage element, wherein a non-aqueous electrolyte contains lithium difluorobis(oxalato)phosphate that is a first additive represented by Formula (1): and lithium tetrafluorooxalatophosphate that is a second additive represented by Formula (2): wherein the amount of the first additive to be added is not less than 0.3% by weight and not more than 1.0% by weight based on the total weight of the non-aqueous electrolyte, and the amount of the second additive to be added is not less than 0.05 times and not more than 0.3 times the amount of the first additive to be added.
Abstract translation: 一种能量储存元件，其中非水电解质含有作为由式（1）表示的第一种添加剂的二氟双（草酸）磷酸锂和作为由式（2）表示的第二添加剂的四氟草酸磷酸锂：其中， 第一添加剂的添加量相对于非水电解质的总重量为0.3重量％以上1.0重量％以下，第二添加剂的添加量不低于0.05倍， 不超过第一种添加剂添加量的0.3倍。
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公开(公告)号：US20140377629A1
公开(公告)日：2014-12-25
申请号：US14306068
申请日：2014-06-16
Applicant: GS Yuasa International Ltd.
Inventor： Akihiko MIYAZAKI , Sumio Mori , Tomonori Kako , Kenta Nakai
CPC classification number: H01M2/1686 , H01M2/1646 , H01M2/1673 , H01M4/66 , H01M10/4235 , H01M2004/021
Abstract: In the state where a positive electrode and a separator are held in a case, the value of the ratio of the tensile elongation in a first direction of the separator to the tensile elongation in the first direction of a positive electrode substrate is from 4 to 68. In the same state, the value of the ratio of the tensile elongation in a second direction of the separator to the tensile elongation in the second direction of the positive electrode substrate is from 4 to 68. The value of the ratio of the thickness of a heat-resistant layer to the thickness of the positive electrode substrate is from 0.25 to 0.70. The proportion by mass of heat-resistant particles contained in the heat-resistant layer is from 30 to 99% by mass of the heat-resistant layer.
Abstract translation: 在将正极和隔板保持在壳体中的状态下，隔板的第一方向的拉伸伸长率与正极基板的第一方向的拉伸伸长率之比为4〜68 在相同的状态下，隔板的第二方向的拉伸伸长率与正极基板的第二方向的拉伸伸长率的比值为4〜68。 对于正极基板的厚度的耐热层为0.25〜0.70。 耐热层中所含的耐热粒子的质量比例为耐热层的30〜99质量％。
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公开(公告)号：US20140295220A1
公开(公告)日：2014-10-02
申请号：US14227394
申请日：2014-03-27
Applicant: GS Yuasa International Ltd.
Inventor： Sumio Mori , Tomonori Kako , Akihiko Miyazaki , Kenta Nakai
CPC classification number: H01M2/12 , H01G9/12 , H01G11/18 , H01M2/024 , H01M2/0478 , H01M2/1077 , H01M2/263 , H01M2/305 , H01M10/613 , H01M10/625 , H01M10/647 , H01M10/6557 , Y02E60/13
Abstract: An electric storage device is provided with an electrode assembly including a positive electrode plate and a negative electrode plate; a case for housing the electrode assembly; a positive-electrode external terminal arranged on an outer surface of the case and electrically connected to the positive electrode plate; a negative-electrode external terminal arranged on an outer surface of the case and electrically connected to the negative electrode plate; and a gas exhaust valve formed in a region of the case on the opposite side of a region where the positive-electrode external terminal and the negative-electrode external terminal are arranged.
Abstract translation: 蓄电装置设置有包括正极板和负极板的电极组件; 用于容纳电极组件的壳体; 正极外部端子，布置在壳体的外表面上并电连接到正极板; 负极外部端子，其布置在所述壳体的外表面上并电连接到所述负极板; 以及形成在壳体的与配置有正极外部端子和负极外部端子的区域的相对侧的区域中的排气阀。
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公开(公告)号：US20140154557A1
公开(公告)日：2014-06-05
申请号：US14094247
申请日：2013-12-02
Applicant: GS Yuasa International Ltd.
Inventor： Sumio MORI , Kenta Nakai , Akihiko Miyazaki , Tomonori Kako
IPC: H01M4/587 , H01M10/0525
CPC classification number: H01M4/587 , H01M2/26 , H01M2/263 , H01M4/13 , H01M4/133 , H01M10/0525 , H01M10/0567 , H01M2004/021 , Y02E60/122 , Y02T10/7011
Abstract: An energy storage device including a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte, wherein the negative electrode includes a negative electrode active material layer containing a non-graphitizable carbon as a negative electrode active material, and the negative electrode active material has a negative electrode active material weight per unit volume of the negative electrode active material layer of 0.92 g/cc or more and 1.13 g/cc or less and a particle size D90 of 4.3 μm or more and 11.5 μm or less, the particle size D90 being a particle size in particle size distribution in which a cumulative volume is 90%.
Abstract translation: 一种蓄电装置，其特征在于，具备正极，负极，配置在所述正极和所述负极之间的隔板以及非水电解质的蓄电装置，所述负极包括含有不可石墨化碳的负极活性物质层 负极活性物质，负极活性物质的负极活性物质层的单位面积负极活性物质重量为0.92g / cc以上且1.13g / cc以下，粒径D90为4.3 μm以上且11.5μm以下，粒径D90为累积体积为90％的粒度分布的粒径。
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Patent Agency Ranking
公开(公告)号：US11258065B2
公开(公告)日：2022-02-22
申请号：US16069929
申请日：2017-01-13
Applicant: GS Yuasa International Ltd.
Inventor： Shota Ito , Kenta Nakai , Akihiko Miyazaki , Tomonori Kako , Sumio Mori
IPC: H01M4/02 , H01G11/06 , H01M4/587 , H01M10/0525 , H01M4/13 , H01M10/058 , H01G11/42 , H01G11/32 , H01G11/26 , H01G11/50 , H01G11/24
Abstract: An energy storage device includes: a positive electrode plate containing a positive composite layer including a positive active material capable of occluding and releasing a lithium ion; and a negative electrode plate containing a negative composite layer including a negative active material capable of occluding and releasing a lithium ion. A peak pore diameter Rp of the positive composite layer in a pore distribution measured by a mercury penetration method is 0.5 μm or less, and a peak pore diameter Rn of the negative composite layer in a pore distribution measured by a mercury penetration method is 0.5 μm or less. A ratio Rp/Rn of the peak pore diameter of the positive composite layer to the peak pore diameter of the negative composite layer is 0.60 or more and 1.70 or less.
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公开(公告)号：US11239458B2
公开(公告)日：2022-02-01
申请号：US16330483
申请日：2017-09-06
Applicant: GS Yuasa International Ltd.
Inventor： Ryosuke Shimokawa , Tomonori Kako , Shota Ito , Kazuki Kawaguchi
IPC: H01M4/139 , H01M10/0525 , H01M4/505 , H01M4/525 , H01M4/62 , H01M4/13 , H01M4/36 , H01G11/86 , H01G11/24 , H01M4/02
Abstract: An energy storage device is provided that has improved power performance at low temperature. In the present embodiment, an energy storage device is provided that includes an electrode having an active material layer, the active material layer contains at least active material particles, the particles contained in the active material layer gives a volume-based particle size frequency distribution that has a first peak and a second peak appearing in a particle size larger than a particle size of the first peak, and particles having particle sizes equal to or smaller than a particle size Dx have a volume proportion of 49% or more and 62% or less in a volume of whole particles contained in the active material layer, with the particle size Dx defined as a particle size at a local minimum frequency between the first peak and the second peak in the particle size frequency distribution.
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公开(公告)号：US10833349B2
公开(公告)日：2020-11-10
申请号：US15068915
申请日：2016-03-14
Applicant: GS Yuasa International Ltd.
Inventor： Kenta Nakai , Tomonori Kako , Akihiko Miyazaki , Sumio Mori
IPC: H01M10/04 , H01M10/0583 , H01M2/16 , H01G11/52 , H01G11/26 , H01G11/76 , H01G11/82 , H01G11/12 , H01G11/06
Abstract: An energy storage device includes: an electrode assembly which includes: an approximately rectangular positive electrode; an approximately rectangular negative electrode which is stacked alternately with the positive electrode; and a strip-like elongated separator having a base material layer and an inorganic layer which is made to overlap with the first base material layer, wherein the elongated separator is arranged between the positive electrode and the negative electrode, and the base material layer of the elongated separator faces the negative electrode in an opposed manner between the positive electrode and the negative electrode.
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公开(公告)号：US09865878B2
公开(公告)日：2018-01-09
申请号：US15072506
申请日：2016-03-17
Applicant: GS Yuasa International Ltd.
Inventor： Kenta Nakai , Akihiko Miyazaki , Tomonori Kako , Sumio Mori
CPC classification number: H01M4/587 , H01G11/24 , H01G11/52 , H01G11/58 , H01M4/131 , H01M10/0525 , H01M2004/021 , H01M2004/027 , H01M2220/20 , Y02T10/7011
Abstract: An energy storage device includes a positive electrode, a negative electrode, and a nonaqueous electrolyte solution. The negative electrode includes an active material layer, and the active material layer has pores having a pore size of 0.1 μm or more and 1.0 μm or less, and a total volume of the pores is 0.26 cm3/g or more and 0.46 cm3/g or less.
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公开(公告)号：US09761876B2
公开(公告)日：2017-09-12
申请号：US14094247
申请日：2013-12-02
Applicant: GS Yuasa International Ltd.
Inventor： Sumio Mori , Kenta Nakai , Akihiko Miyazaki , Tomonori Kako
IPC: H01M4/587 , H01M10/0525 , H01M4/133 , H01M2/26 , H01M4/13 , H01M4/02 , H01M10/0567
CPC classification number: H01M4/587 , H01M2/26 , H01M2/263 , H01M4/13 , H01M4/133 , H01M10/0525 , H01M10/0567 , H01M2004/021 , Y02E60/122 , Y02T10/7011
Abstract: An energy storage device including a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte, wherein the negative electrode includes a negative electrode active material layer containing a non-graphitizable carbon as a negative electrode active material, and the negative electrode active material has a negative electrode active material weight per unit volume of the negative electrode active material layer of 0.92 g/cc or more and 1.13 g/cc or less and a particle size D90 of 4.3 μm or more and 11.5 μm or less, the particle size D90 being a particle size in particle size distribution in which a cumulative volume is 90%.
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