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21. 发明授权

US10511004B2 Non-aqueous electrolyte secondary battery 有权
公开(公告)号：US10511004B2
公开(公告)日：2019-12-17
申请号：US15117068
申请日：2015-01-26
申请人： Nissan Motor Co., Ltd.
发明人： Yuki Kusachi , Yasuhiko Ohsawa , Hiroshi Akama , Hideaki Horie , Yuta Murakami , Kenichi Kawakita , Yusuke Mizuno , Yasuhiro Tsudo , Yasuhiro Shindo
IPC分类号： H01M2/16 , H01M10/052 , H01M4/62 , H01M4/36 , H01M10/0525
摘要： A non-aqueous electrolyte secondary battery has a positive electrode having a positive electrode active material layer, a negative electrode having a negative electrode active material layer, and an electrolyte layer having an electrolyte solution containing a non-aqueous solvent. At least one of the positive electrode active material layer and the negative electrode active material layer contains an electrode material for a non-aqueous electrolyte secondary battery having a core part including an electrode active material and a shell part including a conductive material in a base material formed by a gel-forming polymer having a liquid absorption rate with respect to the electrolyte solution of 10 to 200%.

22. 发明授权

US09941511B2 Electrode material for non-aqueous electrolyte secondary battery, and non-aqueous electrolyte secondary battery electrode and non-aqueous electrolyte secondary battery using the same 有权
公开(公告)号：US09941511B2
公开(公告)日：2018-04-10
申请号：US15027499
申请日：2014-10-03
申请人： NISSAN MOTOR CO., LTD.
发明人： Yasuhiko Ohsawa , Hideaki Horie , Hiroshi Akama , Yuki Kusachi , Yuta Murakami , Kenichi Kawakita , Yusuke Mizuno , Yasuhiro Tsudo , Yasuhiro Shindo
IPC分类号： H01M10/00 , H01M4/36 , H01M4/131 , H01M4/139 , H01M4/62 , H01M10/0525 , H01M4/485 , H01M4/66
CPC分类号： H01M4/366 , H01M4/131 , H01M4/139 , H01M4/485 , H01M4/622 , H01M4/624 , H01M4/625 , H01M4/66 , H01M10/0525 , H01M2220/20 , Y02E60/122 , Y02P70/54 , Y02T10/7011
摘要： A core-shell-type electrode material is used as an electrode active material layer of a non-aqueous electrolyte secondary battery, the core-shell-type electrode material having a core part in which at least a part of a surface of an electrode active material is coated with a first conductive material and a shell part in which a second conductive material is contained in a base material formed by a gel-forming polymer having a tensile elongation at break of 10% or more in a gel state.

23. 发明授权

US11522242B2 Battery pack 有权
公开(公告)号：US11522242B2
公开(公告)日：2022-12-06
申请号：US16082729
申请日：2017-03-08
申请人： NISSAN MOTOR CO., LTD.
发明人： Hajime Satou , Yasuhiko Ohsawa , Yuki Kusachi , Hiroshi Akama , Hideaki Horie , Yusuke Mizuno , Yusuke Emori , Takahiro Imaishi
IPC分类号： H01M6/46 , H01M10/625 , H01M50/238 , H01M50/10 , H01M50/147 , H01M50/172
摘要： The battery pack has a laminated body in which unit cells are laminated one on another, a cell case having a first opening and containing the laminated body, and a first lid member to tightly close the first opening. The first opening is positioned to face, in connection with a unit cell laminated direction, a first face of the laminated body. The first lid member is configured to, if an internal pressure of the cell case is lower than atmospheric pressure, deform while keeping the tightly closing state, come into contact with the first face of the laminated body, and apply a pressure based on a differential pressure between atmospheric pressure and the internal pressure of the cell case to the contacting face.

24. 发明授权

US11063295B2 Non-aqueous electrolyte secondary battery and method for manufacturing the same 有权
公开(公告)号：US11063295B2
公开(公告)日：2021-07-13
申请号：US16521766
申请日：2019-07-25
申请人： NISSAN MOTOR CO., LTD.
发明人： Yasuhiko Ohsawa , Yuki Kusachi , Hiroshi Akama , Hideaki Horie , Yusuke Mizuno , Kenichi Kawakita , Yasuhiro Shindo , Yasuhiro Tsudo
IPC分类号： H01M10/0565 , H01M4/36 , H01M10/0585 , H01M4/13 , H01M4/139
摘要： To provide a structure which allows production of an electrode, even if the film thickness of an electrode is increased; and a non-aqueous electrolyte secondary battery using the same.
A non-aqueous electrolyte secondary battery including a power generating element including: two electrodes having different polarity and formed by forming an active material layer on a current collector; and an electrolyte layer positioned between the electrodes, wherein at least one of the active material layers of the two electrodes having different polarity contains an active material and a conductive member made from an electron conducting material, the active material layer has a first principal surface which comes into contact with the electrolyte layer side, and a second principal surface which comes into contact with the current collector side, at least a part of the conductive member forms a conductive path electrically connecting the first principal surface to the second principal surface, and the conductive path is in contact with the active material in the periphery of the conductive path, at least a part of the surface of the active material is coated with a coating agent that includes a coating resin and a conduction assisting agent, and an electrolyte solution contained in the electrolyte layer or the two electrodes having different polarity is a gel phase electrolyte.

25. 发明授权

US10673057B2 Negative electrode for lithium ion battery and method for producing negative electrode for lithium ion battery 审中-公开
公开(公告)号：US10673057B2
公开(公告)日：2020-06-02
申请号：US16470610
申请日：2017-12-19
申请人： NISSAN MOTOR CO., LTD.
发明人： Kazuya Tsuchida , Yusuke Nakashima , Yasuhiko Ohsawa , Yuki Kusachi , Hajime Satou , Hiroshi Akama , Hideaki Horie
IPC分类号： H01M4/04 , H01M4/133 , H01M4/134 , H01M4/1393 , H01M4/1395 , H01M4/36 , H01M4/38 , H01M4/587 , H01M10/0525 , H01M4/62 , H01M4/02
摘要： To provide a negative electrode for a lithium ion battery in which a volume change of a silicon-based negative electrode active material due to charging and discharging is small, and a production method therefor.Provided is a method for producing a negative electrode for a lithium ion battery, the method including a step of forming a coating film on a current collector or a separator by using a slurry containing a negative electrode active material composition, which contains a silicon-based negative electrode active material and a carbon-based negative electrode active material, and a dispersion medium, in which the method further includes a step of doping the silicon-based negative electrode active material with lithium ions and a step of doping the carbon-based negative electrode active material with lithium ions before or after the step of forming the coating film and before assembling a lithium ion battery, and the method does not substantially include a step of drying the coating film.

26. 发明授权

US09461299B2 Transition metal oxide containing solid solution lithium, non-aqueous electrolyte secondary battery positive electrode and non-aqueous electrolyte secondary battery 有权
标题翻译：过渡金属氧化物含固溶锂，非水电解质二次电池正极和非水电解质二次电池
公开(公告)号：US09461299B2
公开(公告)日：2016-10-04
申请号：US14374607
申请日：2013-02-01
申请人： NISSAN MOTOR CO., LTD.
发明人： Atsushi Ito , Yasuhiko Ohsawa , Tomohiro Kaburagi , Shinji Yamamoto , Kenzo Oshihara
IPC分类号： H01M4/131 , H01M4/505 , H01M4/525 , C01G53/00 , H01M4/36 , H01M4/485 , H01M4/1391 , H01M4/02
CPC分类号： H01M4/131 , C01G53/56 , C01P2002/32 , C01P2004/61 , C01P2006/10 , C01P2006/12 , C01P2006/14 , C01P2006/40 , H01M4/1391 , H01M4/362 , H01M4/366 , H01M4/485 , H01M4/505 , H01M4/525 , H01M2004/028 , H01M2220/20 , Y02E60/122
摘要： A transition metal oxide containing solid solution lithium contains a transition metal oxide containing lithium, which is represented by a chemical formula: Li1.5[NiaCobMnc[Li]d]O3 where 0
摘要翻译：含有固溶体锂的过渡金属氧化物含有含锂的过渡金属氧化物，其由化学式Li1.5 [NiaCobMnc [Li] d] O3表示，其中0

27. 发明申请

US20150034863A1 POSITIVE ELECTRODE ACTIVE MATERIAL 审中-公开
标题翻译：正极电极活性材料
公开(公告)号：US20150034863A1
公开(公告)日：2015-02-05
申请号：US14379693
申请日：2013-02-15
申请人： NISSAN MOTOR CO., LTD.
发明人： Atsushi Ito , Yasuhiko Ohsawa
IPC分类号： H01M4/505 , H01M4/525
CPC分类号： H01M4/505 , H01M4/131 , H01M4/525 , H01M10/0525 , Y02T10/7011
摘要： A positive-electrode active material is formed of a solid solution type complex oxide represented by a compositional formula of [Li1.5][Li{0.5{1−x}−ny}(n−1)yM′nyMn1−xM1.5x]O3, wherein 0.1±x±0.5 is satisfied, M is represented by NiαCoβMnγ, where 0
摘要翻译：正极活性物质由[Li1.5] [Li {0.5 {1-x} -ny}（n-1）yM'nyMn1-xM1.5x的组成式表示的固溶体型复合氧化物形成 ] O3，其中满足0.1±x±0.5，M由NiαCo＆bgr;Mnγ表示，其中0 <α＆nlE; 0.5,0和nlE;＆bgr;＆nlE; 0.33和0 <γ＆nlE; 0.5，M'是至少一个元素选择从由Mg，Zn，Al，Fe，Ti和V组成的组中，n价为2〜5，0≤n≤0.5。 “”代表一个洞。

28. 发明申请

US20140320141A1 SECONDARY BATTERY CONTROL DEVICE AND SOC DETECTION METHOD 有权
标题翻译：二次电池控制装置和SOC检测方法
公开(公告)号：US20140320141A1
公开(公告)日：2014-10-30
申请号：US14357305
申请日：2012-10-24
申请人： NISSAN MOTOR CO., LTD.
发明人： Tomohiro Kaburagi , Yasuhiko Ohsawa , Atsushi Itou , Takuya Kinoshita
IPC分类号： H01M10/48
CPC分类号： H01M10/48 , G01R31/362 , H02J7/0047 , H02J7/0086 , H02J7/1461
摘要： A control device of a secondary battery uses, as material of a positive electrode, positive electrode active material that shows a difference of an open circuit voltage curve between charging and discharging. A storing unit stores, as discharge open circuit voltage information, a relationship between an SOC in a discharge process and an open circuit voltage for each changeover SOC that is an SOC when changing a state of the secondary battery from the charge to the discharge. An SOC calculating unit calculates the SOC of the secondary battery in the discharge process on the basis of a changeover SOC when actually performing the change from the charge to the discharge and the discharge open circuit voltage information stored in the storing unit. It is therefore possible to properly detect the SOC during the discharge
摘要翻译：作为正极材料，二次电池的控制装置使用表示充放电之间的开路电压曲线的差的正极活性物质。存储单元将作为放电开路电压信息的放电处理中的SOC与作为将二次电池的状态从充电改变为放电的SOC时的SOC的开路电压的关系存储起来。 SOC计算单元在实际执行从充电到放电的改变和存储在存储单元中的放电开路电压信息时，基于转换SOC来计算放电处理中的二次电池的SOC。因此，可以在放电期间适当地检测SOC

29. 发明授权

US11664489B2 Negative electrode for non-aqueous electrolyte secondary battery and non-aqueous electrolyte secondary battery using the same 有权
公开(公告)号：US11664489B2
公开(公告)日：2023-05-30
申请号：US16495148
申请日：2018-03-26
申请人： NISSAN MOTOR CO., LTD.
发明人： Yasuhiko Ohsawa , Yuki Kusachi , Hajime Satou , Hiroshi Akama , Hideaki Horie , Hideki Nishimura
IPC分类号： H01M4/62 , H01M4/133 , H01M4/587 , H01M4/38 , H01M4/36 , H01M4/134 , H01M10/0525 , H01M4/02
CPC分类号： H01M4/133 , H01M4/134 , H01M4/366 , H01M4/386 , H01M4/387 , H01M4/587 , H01M4/622 , H01M10/0525 , H01M2004/021 , H01M2004/027
摘要： To provide a negative electrode for a non-aqueous electrolyte secondary battery that can be produced even without performing a heat treatment at a high temperature such as 2,000° C. or higher and can have the discharge capacity and the cycle characteristics (capacity retention) further increased.
The negative electrode for a non-aqueous electrolyte secondary battery according to the invention has a configuration in which a negative electrode active material layer containing a negative electrode material and a binder is formed on the surface of a current collector. Further, the negative electrode material has a core portion including carbonaceous negative electrode active material particles; and a shell portion including a polyimide and silicon-based negative electrode active material particles and/or tin-based negative electrode active material particles. Here, there is a feature that the content of the silicon-based negative electrode active material particles and/or tin-based negative electrode active material particles with respect to 100% by mass of the content of the carbonaceous negative electrode active material particles is 2% to 20% by mass. Furthermore, there is a feature that the binder is formed of a hydrophilic unit and a hydrophobic unit bonded together.

30. 发明授权

US11063327B2 Secondary battery and secondary battery control method 有权
公开(公告)号：US11063327B2
公开(公告)日：2021-07-13
申请号：US16484206
申请日：2017-03-03
申请人： Nissan Motor Co., Ltd.
发明人： Gentaro Kano , Atsushi Horai , Kazuki Arihara , Hajime Satou , Yasuhiko Ohsawa , Ryoichi Senbokuya , Maki Chumon , Eiji Minegishi
IPC分类号： H01M50/00 , H01M50/572 , G01R31/50 , H01M10/04 , H01M10/0565 , H01M10/0585 , H01M10/44 , H01M50/531 , H01M50/543
摘要： A secondary battery is provided with a power generation element, an electroconductive member, an external short circuit, a current detector and an external discharge safety circuit. The power generation element has a unit cell layer that includes a positive electrode, a separator and a negative electrode stacked in that order. The electroconductive member is disposed on one outward side of the power generation element with an insulation member interposed therebetween. A lead wire connects the electroconductive member with the negative electrode tab. The current detector detects whether or not current is flowing to the lead wire. The external discharge safety circuit is provided to short-circuits a path between the positive electrode tab and the negative electrode tab outside the power generation element while current detector detects a current.

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