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1. 发明授权

US12117499B2 Battery management apparatus, battery management method, and battery energy storage system 有权
公开(公告)号：US12117499B2
公开(公告)日：2024-10-15
申请号：US17440394
申请日：2020-03-17
申请人： Vehicle Energy Japan Inc.
发明人： Fanny Matthey , Ryohhei Nakao , Keiichiro Ohkawa , Yosuke Wada
IPC分类号： H02J7/00 , G01R31/388 , G01R31/392 , H01M10/44 , H01M10/48
CPC分类号： G01R31/388 , G01R31/392 , H01M10/44 , H01M10/48 , H01M10/486 , H02J7/0048 , H02J7/005 , H02J7/007182
摘要： A battery management apparatus 102 is an apparatus which manages a chargeable and dischargeable battery, and includes: a battery state calculation unit 501 which calculates a state of charge SOC representing the state of charge of the battery, and a charge capacity fade SOHQ representing a deterioration degree; a mid voltage calculation unit 502 which calculates a mid voltage that is present between the discharge voltage in a current state of charge of the battery, and a voltage value representing the discharge voltage in a minimum state of charge of the battery; a remaining capacity calculation unit 503 which calculates a remaining capacity of the battery, based on the state of charge SOC and the charge capacity fade SOHQ; and an available energy calculation unit 504 which calculates available energy of the battery, based on the mid voltage and the remaining capacity.

2. 发明公开

US20240266625A1 BATTERY MODULE AND METHOD FOR INSPECTING THE BATTERY MODULE 审中-公开
公开(公告)号：US20240266625A1
公开(公告)日：2024-08-08
申请号：US18566996
申请日：2022-03-28
申请人： VEHICLE ENERGY JAPAN INC.
发明人： Hirofumi TAKAHASHI , Osamu KUBOTA , Yoshitaka WATAHIKI
IPC分类号： H01M10/48 , H01M10/615 , H01M10/625 , H01M10/647 , H01M10/657 , H01M10/6571 , H01M50/209 , H01M50/249 , H01M50/569
CPC分类号： H01M10/486 , H01M10/482 , H01M10/615 , H01M10/625 , H01M10/647 , H01M10/657 , H01M10/6571 , H01M50/209 , H01M50/249 , H01M50/569 , H01M2220/20
摘要： Provided are a battery module which can be efficiently inspected without applying an electrical load to the battery module and a method for inspecting the battery module. This battery module has a unit cell 13 equipped with a battery container 13a accommodating battery elements, a thermistor 23 disposed in contact with an outer surface of the battery container 13a and thermally connected thereto, and an electrically insulating, rigid insulation cover 17 partially covering the battery container 13a and pressing the thermistor 23 against the battery container 13a, wherein a through hole 26 through which a heat application means 28, 29 passes is formed in the insulation cover 17, and the thermistor 23 is disposed at a position outside a heat application area formed when the through hole 26 is orthographically projected on a planar section 21 of the battery container 13a.

3. 发明授权

US12034150B2 Lithium ion secondary battery and method for manufacturing same 有权
公开(公告)号：US12034150B2
公开(公告)日：2024-07-09
申请号：US17292293
申请日：2019-10-31
申请人： VEHICLE ENERGY JAPAN INC.
发明人： Hiroyuki Toshiro , Yasuo Arishima
IPC分类号： H01M4/36 , H01M4/131 , H01M4/139 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M10/0587 , H01M4/02
CPC分类号： H01M4/364 , H01M4/131 , H01M4/139 , H01M4/366 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M10/0587 , H01M2004/021 , H01M2004/028
摘要： A lithium ion secondary battery with increased durability and capacity includes a positive electrode, a negative electrode, and a separator. The positive electrode includes a current collector foil and an electrode mixture layer disposed on a surface of the current collector foil. The positive electrode mixture layer includes a superficial layer portion and a deep layer portion. The superficial layer portion opposes the negative electrode via the separator. The deep layer portion is disposed between the superficial layer portion and the current collector foil. The superficial layer portion contains positive electrode active material particles having an average particle diameter larger than an average particle diameter of positive electrode active material particles contained in the deep layer portion. A space ratio between the positive electrode active material particles in the superficial layer portion is lower than a space ratio between the positive electrode active material particles in the deep layer portion.

4. 发明公开

US20240006663A1 SOLID ELECTROLYTE SHEET, AND SOLID ELECTROLYTE SECONDARY BATTERY USING SAID SOLID ELECTROLYTE SHEET 审中-公开
公开(公告)号：US20240006663A1
公开(公告)日：2024-01-04
申请号：US18021903
申请日：2021-09-17
申请人： Vehicle Energy Japan Inc.
发明人： Yuki YAMAMOTO , Yukio YAMAKAWA
IPC分类号： H01M10/0585 , H01M10/0562 , H01M10/0525
CPC分类号： H01M10/0585 , H01M10/0562 , H01M10/0525 , H01M2300/0071
摘要： A solid electrolyte sheet capable of increasing rigidity near an end surface of the solid electrolyte sheet, and a solid electrolyte secondary battery used with the solid electrolyte sheet are provided. A solid electrolyte sheet 10 includes a base 11 formed in a plate shape containing a solid electrolyte, and a plate-shaped reinforcing part 12 formed on an outside of the base, in which the reinforcing part 12 is made of a combination of two electrical insulating members different in material, and higher in rigidity than the base 11. Since rigidity near the periphery of the solid electrolyte sheet can be increased, a risk of damage near the periphery of the solid electrolyte sheet can be reduced.

5. 发明公开

US20230411793A1 SQUARE SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF 审中-公开
公开(公告)号：US20230411793A1
公开(公告)日：2023-12-21
申请号：US18002365
申请日：2021-09-28
申请人： VEHICLE ENERGY JAPAN INC.
发明人： Nobuyoshi Tanaka
IPC分类号： H01M50/477 , H01M50/103 , H01M50/15
CPC分类号： H01M50/477 , H01M50/103 , H01M50/15
摘要： A square secondary battery, including: a conductive container which is formed in a rectangular parallelepiped shape opened on one surface side; a lid which seals the one surface side of the container; a charge/discharge body which is housed in the container and which has electrodes respectively formed on both sides in a width direction; and an insulating member which coats the charge/discharge body and which insulates the charge/discharge body and the container from each other, wherein the insulating member is formed in a rectangular parallelepiped shape opened on one surface side and at least one side surface among a pair of side surfaces respectively opposing the electrodes of the charge/discharge body is folded in a direction of separation from the charge/discharge body along a height direction.

6. 发明公开

US20230352795A1 ASSEMBLED BATTERY 审中-公开
公开(公告)号：US20230352795A1
公开(公告)日：2023-11-02
申请号：US18002297
申请日：2021-09-27
申请人： VEHICLE ENERGY JAPAN INC.
发明人： Koji Chida
IPC分类号： H01M50/358 , H01M50/204
CPC分类号： H01M50/358 , H01M50/204
摘要： An assembled battery includes: a plurality of batteries, each with a container that contains an electric charger/discharger and an electrolytic solution and a gas discharge unit on its one surface, wherein the plurality of batteries are stacked so that the one surface of each battery is aligned to be flush with the one surface of the other batteries; a metal first flow path member is placed opposite the surface with the gas discharge unit, and configures a first flow path unit for gas discharged from the gas discharge units of the batteries; a second flow path member that forms a second flow path unit with a smaller flow path cross-sectional area; a connector that couples the first and the second flow path unit via an opening in the first flow path member; and a guide member that partitions a space inside the connector. This configuration allows for efficient gas discharge.

7. 发明申请

US20220294073A1 Battery Module 有权
公开(公告)号：US20220294073A1
公开(公告)日：2022-09-15
申请号：US17635943
申请日：2020-08-28
申请人： Vehicle Energy Japan Inc.
发明人： Kazunori OJIMA , Sadayuki AOKI , Osamu KUBOTA , Yoshitaka WATAHIKI
IPC分类号： H01M50/298
摘要： Provided is a battery module capable of suppressing failures in accurate detection of the state of battery cells due to the effects of unwanted radiation from the battery cells. A battery module 30 includes a plurality of battery cells 20 that are stacked and disposed and a wiring member 50 to detect the state of the plurality of battery cells 20. In the wiring member 50, an insulating base material 52, a wiring layer 53 disposed on one surface 52a side of the base material 52 and including a plurality of detection lines 53a to detect the state of the plurality of battery cells 20, and a ground layer 55 disposed in a position corresponding to at least the wiring layer 53, on the other surface 52b side of the base material 52 are stacked.

8. 发明申请

US20220163591A1 BATTERY MANAGEMENT APPARATUS, BATTERY MANAGEMENT METHOD, AND BATTERY ENERGY STORAGE SYSTEM 有权
公开(公告)号：US20220163591A1
公开(公告)日：2022-05-26
申请号：US17440394
申请日：2020-03-17
申请人： Vehicle Energy Japan Inc.
发明人： Fanny MATTHEY , Ryohhei NAKAO , Keiichiro OHKAWA , Yosuke WADA
IPC分类号： G01R31/388 , H01M10/44 , H01M10/48 , G01R31/392 , H02J7/00
摘要： A battery management apparatus 102 is an apparatus which manages a chargeable and dischargeable battery, and includes: a battery state calculation unit 501 which calculates a state of charge SOC representing the state of charge of the battery, and a charge capacity fade SOHQ representing a deterioration degree; a mid voltage calculation unit 502 which calculates a mid voltage that is present between the discharge voltage in a current state of charge of the battery, and a voltage value representing the discharge voltage in a minimum state of charge of the battery; a remaining capacity calculation unit 503 which calculates a remaining capacity of the battery, based on the state of charge SOC and the charge capacity fade SOHQ; and an available energy calculation unit 504 which calculates available energy of the battery, based on the mid voltage and the remaining capacity.

9. 发明授权

US11296352B2 Secondary battery 有权
公开(公告)号：US11296352B2
公开(公告)日：2022-04-05
申请号：US16626709
申请日：2018-03-16
申请人： VEHICLE ENERGY JAPAN INC.
发明人： Motonari Kifune , Tetsuya Horinohchi , Kazuhide Uemura , Mutsumi Tsujide
IPC分类号： H01M10/04 , H01M10/0525
摘要： An object of the present invention is to obtain a secondary battery that allows grasping a position of a mixture layer on an electrode and facilitates adjustment of positions of a positive electrode and a negative electrode. A secondary battery (100) of the present invention includes a negative electrode (32) that includes a strip-shaped copper foil (45) having both surfaces, negative electrode mixture layers (32a) on both the surfaces, a negative electrode foil exposed portion (32b), and insulating layers (31). The negative electrode foil exposed portion (32b) where the copper foil (45) is exposed is formed in an end portion on one side in a width direction of the copper foil (45). The insulating layers (31) are disposed on the negative electrode mixture layers (32a) and on the negative electrode foil exposed portion (32b). The insulating layer (31) includes a window portion (31a) at a position corresponding to a boundary part between the negative electrode mixture layer (32a) and the negative electrode foil exposed portion (32b). An end portion of the negative electrode mixture layer (32a) is visually recognizable from the window portion (31a).

10. 发明申请

US20210336299A1 BATTERY MANAGEMENT APPARATUS, BATTERY MANAGEMENT METHOD, AND BATTERY ENERGY STORAGE SYSTEM 有权
公开(公告)号：US20210336299A1
公开(公告)日：2021-10-28
申请号：US17264508
申请日：2019-03-12
申请人： VEHICLE ENERGY JAPAN INC.
发明人： Fanny MATTHEY , Ryohhei NAKAO , Hiroshi MORIKAWA
IPC分类号： H01M10/44 , H02J7/00 , G01R31/36
摘要： A battery management apparatus for managing a chargeable-dischargeable battery includes: a battery status calculation unit that calculates a degradation degree of the battery; a degradation speed calculation unit that calculates a degradation speed of the battery on the basis of the degradation degree; and an upper limit temperature setting unit that sets an upper limit temperature of the battery on the basis of the degradation speed, wherein the upper limit temperature setting unit raises the upper limit temperature in association with a decrease of the degradation speed.

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