-
公开(公告)号：US10044071B2
公开(公告)日：2018-08-07
申请号：US15024068
申请日：2014-06-09
Inventor： Sayaka Yonehara , Keisuke Matsumoto , Takashi Honda , Kousuke Hagiyama , Fumihiro Kawamura , Osamu Shimamura , Kazuki Miyatake , Ikuma Matsuzaki , Ryuuta Yamaguchi , Kuniharu Nomoto
IPC: H01M10/42 , H01M10/0585 , H01M10/0525 , H01M10/44 , H01M10/0567
Abstract: 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).
-
公开(公告)号：US09608261B2
公开(公告)日：2017-03-28
申请号：US14776010
申请日：2014-03-13
Applicant: NISSAN MOTOR CO., LTD.
Inventor： Kenji Ohara , Yoshiaki Nitta , Satoru Ichikawa , Gentaro Kano , Manabu Nishijima , Osamu Shimamura , Fumihiro Kawamura , Kousuke Hagiyama , Shigeo Ibuka , Manabu Kaseda , Masanori Suenaga , Tamaki Hirai , Masahiro Takaya , Kuniharu Nomoto
IPC: H01M2/02 , H01M4/36 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M4/131 , H01M10/0585 , H01M2/16 , H01M4/02
CPC classification number: H01M4/364 , H01M2/0217 , H01M2/0285 , H01M2/16 , H01M4/131 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M10/0585 , H01M2004/021 , H01M2004/028 , H01M2220/20 , Y02E60/122
Abstract: [Object] Provided is a means for improving cycle characteristics by suppressing electrode deterioration resulting from non-uniformity of voltage across an electrode plane in a high-capacity and large-area non-aqueous electrolyte secondary battery that includes lithium nickel-based composite oxide as a positive electrode active substance.[Solving Means] Disclosed is a positive electrode for a non-aqueous electrolyte secondary battery used in a non-aqueous electrolyte secondary battery in which the ratio value of battery area (projected area of the battery including the battery outer casing body) to rated capacity is 5 cm2/Ah or more and the rated capacity is 3 Ah or more, the positive electrode comprising a positive electrode current collector and a positive electrode active substance layer that is formed on a surface of the positive electrode current collector and has a positive electrode active substance containing a lithium nickel-based composite oxide and a spinel type lithium manganese composite oxide, in which, when the average secondary particle diameter (D50) of the lithium nickel-based composite oxide is D50(A) [μm], the content ratio of the lithium nickel-based composite oxide in the positive electrode active substance layer is A [% by mass], the average secondary particle diameter (D50) of the spinel type lithium manganese composite oxide is D50(B) [μm], and the content ratio of the spinel type lithium manganese composite oxide in the positive electrode active substance layer is B [% by mass], the positive electrode satisfies the following Mathematical Formula 1 and Mathematical Formula 2: [Math. 1] 0.5≦D50(A)/D50(B)≦2.0 MathematicalFormula1: B/(A+B)≧0.2 MathematicalFormula2:
-
公开(公告)号：US08652220B2
公开(公告)日：2014-02-18
申请号：US13793765
申请日：2013-03-11
Applicant: Nissan Motor Co., Ltd.
Inventor： Kyoichi Watanabe , Hideaki Horie , Takanori Ito , Takaaki Abe , Osamu Shimamura , Takamitsu Saitou , Hiroshi Sugawara
CPC classification number: H01M2/24 , H01M2/0207 , H01M2/0287 , H01M2/0292 , H01M2/1077 , H01M2/1094 , H01M2/204 , H01M2/206 , H01M2/22 , H01M2/26 , H01M2/32 , H01M10/052 , Y02T10/7011 , Y10T29/49108
Abstract: A battery is provided with a plurality of unit cells each having a tab, a bus bar connecting the tab of one of the plurality of unit cells and the tab of another one of the plurality of unit cells, and a plurality of welding points disposed on a center of gravity of an area, in which the bus bar and the tab are overlapped, or a vicinity thereof, and at least one position of line segments, radiately extending from the center of gravity, or a vicinity thereof, such that the bus bar and the tab are connected to one another at the plurality of welding points.
Abstract translation: 电池设有多个单元电池，每个单元电池均具有接头，连接多个单元电池单元之一的接头和多个单元电池中的另一个单元的接头的汇流条，以及多个焊接点 其中汇流条和突片重叠的区域的重心或其附近，以及从重心辐射地延伸的线段或其附近的至少一个线段的位置，使得总线 杆和突片在多个焊接点处彼此连接。
-
公开(公告)号：US20130248106A1
公开(公告)日：2013-09-26
申请号：US13891755
申请日：2013-05-10
Applicant: NISSAN MOTOR CO., LTD.
Inventor： Yasunari Hisamitsu , Hideaki Horie , Taketo Kaneko , Osamu Shimamura
IPC: H01M10/04
CPC classification number: H01M10/04 , H01M4/13 , H01M4/131 , H01M4/133 , H01M4/70 , H01M10/0418 , H01M10/052 , H01M10/0525 , H01M10/056 , H01M10/0565 , H01M10/0566 , H01M10/0585 , H01M2300/0025 , H01M2300/0082 , Y02E60/122 , Y10T29/49115
Abstract: A secondary battery includes: an electric cell layer including a stack structure sequentially including: a positive electrode layer, a separator layer, and a negative electrode layer having an electrolyte higher in conductivity than an electrolyte of at least one of the separator layer and the positive electrode layer.
Abstract translation: 二次电池包括：电池单元层，其包括堆叠结构，其顺序地包括：正电极层，隔离层和负极层，其电导率高于隔板层和正极中的至少一个的电解质的导电性 电极层。
-
公开(公告)号：US09966605B2
公开(公告)日：2018-05-08
申请号：US14780089
申请日：2014-03-26
Inventor： Ryuuta Yamaguchi , Takashi Honda , Kousuke Hagiyama , Ikuma Matsuzaki , Takeshi Miyamoto , Osamu Shimamura , Keisuke Matsumoto
IPC: H01M4/62 , H01M2/18 , H01M4/13 , H01M10/052 , H01M10/04
CPC classification number: H01M4/621 , H01M2/18 , H01M4/13 , H01M10/0481 , H01M10/052 , H01M2220/20 , Y02E60/122 , Y02T10/7011
Abstract: 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.
-
Patent Agency Ranking
公开(公告)号：US09899674B2
公开(公告)日：2018-02-20
申请号：US14771017
申请日：2014-02-27
Applicant: NISSAN MOTOR CO., LTD.
Inventor： Tamaki Hirai , Manabu Kaseda , Osamu Shimamura , Kenji Ohara , Kousuke Hagiyama , Fumihiro Kawamura , Masanori Aoyagi
IPC: H01M4/131 , H01M4/505 , H01M2/16 , H01M4/525 , H01M10/052 , C01G53/00 , H01M4/36 , H01M10/0525 , H01M4/1391 , H01M4/02
CPC classification number: H01M4/505 , C01G53/006 , C01G53/50 , C01P2002/50 , C01P2002/52 , C01P2004/10 , C01P2004/20 , C01P2004/32 , C01P2004/38 , C01P2004/39 , C01P2004/61 , C01P2004/84 , C01P2006/10 , C01P2006/12 , H01M2/16 , H01M4/131 , H01M4/1391 , H01M4/366 , H01M4/525 , H01M10/052 , H01M10/0525 , H01M2004/021 , H01M2004/028 , Y02T10/7011
Abstract: [Object] Provided is a means which is capable, with respect to a non-aqueous electrolyte secondary battery, of suppressing a decrease in capacity when the battery is used for a long period of time, and improving cycle characteristics.[Solving Means] Provided is a positive electrode active substance for a non-aqueous electrolyte secondary battery, the positive electrode active substance being a lithium-nickel-manganese-cobalt composite oxide and having true density of 4.40 to 4.80 g/cm3.
-
公开(公告)号：US09899649B2
公开(公告)日：2018-02-20
申请号：US14780395
申请日：2014-03-26
Inventor： Fumihiro Kawamura , Ikuma Matsuzaki , Ryuta Yamaguchi , Kosuke Hagiyama , Takashi Honda , Takeshi Miyamoto , Osamu Shimamura , Keisuke Matsumoto
IPC: H01M2/12 , H01M4/13 , H01M10/0566 , H01M10/0585 , H01M2/16 , H01M10/0525 , H01M4/62 , H01M10/04 , H01M2/02 , H01M4/02 , H01M4/133
CPC classification number: 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
Abstract: 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.
-
公开(公告)号：US09716266B2
公开(公告)日：2017-07-25
申请号：US14776270
申请日：2014-03-13
Applicant: NISSAN MOTOR CO., LTD.
Inventor： Kenji Ohara , Yoshiaki Nitta , Satoru Ichikawa , Gentaro Kano , Manabu Nishijima , Osamu Shimamura , Fumihiro Kawamura , Kousuke Hagiyama , Shigeo Ibuka , Manabu Kaseda , Masanori Suenaga , Tamaki Hirai , Masahiro Takaya , Kuniharu Nomoto
IPC: H01M4/02 , H01M4/36 , H01M4/131 , H01M4/505 , H01M4/525 , H01M10/0585 , H01M2/02 , H01M10/0525 , H01M2/16
CPC classification number: H01M4/364 , H01M2/0217 , H01M2/16 , H01M4/131 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M10/0585 , H01M2220/20 , H01M2220/30
Abstract: [Object] Provided is a means for improving cycle characteristics by suppressing electrode deterioration resulting from non-uniformity of voltage across an electrode plane in a high-capacity and large-area non-aqueous electrolyte secondary battery that includes lithium nickel-based composite oxide as a positive electrode active substance.[Solving Means] Disclosed is a positive electrode for a non-aqueous electrolyte secondary battery used in a non-aqueous electrolyte secondary battery in which the ratio value of battery area (projected area of the battery including the battery outer casing body) to rated capacity is 5 cm2/Ah or more and the rated capacity is 3 Ah or more, the positive electrode comprising a positive electrode current collector and a positive electrode active substance layer that is formed on a surface of the positive electrode current collector and has a positive electrode active substance containing a lithium nickel-based composite oxide and a spinel type lithium manganese composite oxide, in which, when the average secondary particle diameter (D50) of the lithium nickel-based composite oxide is D50(A) [μm], the content ratio of the lithium nickel-based composite oxide in the positive electrode active substance layer is A [% by mass], the average secondary particle diameter (D50) of the spinel type lithium manganese composite oxide is D50(B) [μm], and the content ratio of the spinel type lithium manganese composite oxide in the positive electrode active substance layer is B [% by mass], the positive electrode satisfies the following Mathematical Formula 1 and Mathematical Formula 2: [Math. 1] 2.0
-
公开(公告)号：US09847516B2
公开(公告)日：2017-12-19
申请号：US14780460
申请日：2014-03-26
Inventor： Kosuke Hagiyama , Takashi Honda , Ryuta Yamaguchi , Ikuma Matsuzaki , Takeshi Miyamoto , Osamu Shimamura , Keisuke Matsumoto
IPC: 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 classification number: 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
Abstract: 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.
-
公开(公告)号：US09350008B2
公开(公告)日：2016-05-24
申请号：US14142472
申请日：2013-12-27
Applicant: NISSAN MOTOR CO., LTD.
Inventor： Osamu Shimamura , Hiroshi Sugawara , Hideaki Horie , Tomaru Ogawa , Takaaki Abe , Takanori Ito
IPC: H01M2/02 , H01M2/00 , H01M2/20 , H01M2/30 , H01M10/04 , H01M6/40 , H01M10/0525 , H01M4/02 , H01M10/42
CPC classification number: H01M2/206 , H01M2/021 , H01M2/024 , H01M2/0257 , H01M2/0287 , H01M2/202 , H01M2/30 , H01M6/40 , H01M10/0413 , H01M10/0525 , H01M2004/021 , H01M2010/4292 , Y02E60/122 , Y02T10/7011 , Y10T29/4911 , Y10T29/49114
Abstract: An automobile cell is provided with an electric power generating element composed of a positive electrode having a positive electrode active substance layer, a negative electrode having a negative electrode active substance layer and a separator interposed between the electrodes, a cell outer sheath made of a laminate film compositely composed of polymer and metal, a positive electrode terminal lead electrically conductive with the positive electrode and extending to an outside of the cell outer sheath, and a negative electrode terminal lead electrically conductive with the negative electrode and extending to the outside of the cell outer sheath. The positive electrode and the negative electrode associated therewith via the separator defines a unit electrode, and the relationship between a thickness of the automobile cell and a sum of a thickness of the positive electrode active substance layer and a thickness of the negative electrode active substance layer of the unit electrodes, is defined such that a value obtained by dividing the former by the latter is equal to or less than 80.
Abstract translation: 汽车电池设置有由正极活性物质层，具有负极活性物质层的负极和插入在电极之间的隔膜构成的正极构成的发电元件，由层叠体构成的电池外护套 由聚合物和金属组成的膜，正极端子引线与正极导电并延伸到电池外护套的外部，负极端子引线与负极导电并延伸到电池外部 外护套 通过分离器与其相关联的正极和负极限定单位电极，汽车电池的厚度与正极活性物质层的厚度与负极活性物质层的厚度之和的关系 的单位电极，被定义为通过将前者除以后者获得的值等于或小于80。
-
-
-
-
-
-
-
-
-
Search Results
11
records
(took 0.032 seconds)
