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31.发明公开公开(公告)号：US20230163402A1
公开(公告)日：2023-05-25
申请号：US17906623
申请日：2020-12-28
发明人： NAO KOGAMI , KAZUHIRO HARAZUKA , KOJI FUJINAGA
IPC分类号： H01M50/293 , H01M50/209 , H01M50/264 , H01M50/291 , B60K1/04 , B60L50/64
CPC分类号： H01M50/293 , H01M50/209 , H01M50/264 , H01M50/291 , B60K1/04 , B60L50/64
摘要： A power supply device includes: battery block formed by stacking a plurality of battery cells in a thickness with separator interposed therebetween; a pair of end plates disposed on both end surfaces of battery block; and binding bar that is coupled to the pair of end plates and fixes battery block in a pressurized state via end plates. Separator is an elastomer, and both surfaces of plate-shaped part are formed into uneven layers having different amounts of change in thickness with respect to a pressing force.
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公开(公告)号：US20230152359A1
公开(公告)日：2023-05-18
申请号：US17906877
申请日：2020-11-19
发明人： YOUSUKE NAKAGAWA
摘要： In leakage detecting device (10) that detects an electric leakage from a high-voltage unit in which power storage unit (20) and a load are connected by a power supply line in a state of being insulated from an earth, Y capacitor (CY) is connected between the earth and a current path between power storage unit (20) and the load. Drive unit (11) of leakage detecting device (10) outputs a rectangular wave voltage to the current path between power storage unit (20) and the load via driving coupling capacitor (Cd1) to charge or discharge Y capacitor (CY). Leakage detector (12) determines presence or absence of the electric leakage between the current path and the earth according to a time transition in which the voltage at the measurement point of the current path changed according to charging or discharging of Y capacitor (CY) converges to an original voltage.
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公开(公告)号：US20230147606A1
公开(公告)日：2023-05-11
申请号：US17905636
申请日：2020-11-19
发明人： MASATO NAKAYAMA
IPC分类号： H02J7/00 , G01R31/396 , G01R31/3835 , H01M10/48 , H01M10/42
CPC分类号： H02J7/0016 , H02J7/0048 , G01R31/396 , G01R31/3835 , H01M10/482 , H01M10/425 , H01M2010/4271
摘要： In management device, voltage measurement circuit measures a voltage of each of a plurality of cells connected in series. A plurality of voltage measurement lines connect between respective nodes of the plurality of cells and respective voltage measurement terminals of voltage measurement circuit. A lower reference potential line connects between a lower node of lowermost cell of the plurality of cells and a lower reference terminal of voltage measurement circuit. Voltage dividing resistor is connected between a predetermined fixed potential and lowermost voltage measurement line. Controlling circuit monitors the voltage between a voltage dividing point potential of voltage dividing resistor and a lower reference potential of voltage measurement circuit, and diagnoses presence or absence of disconnection of lowermost voltage measurement line or the lower reference potential line.
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34.发明公开公开(公告)号：US20230143369A1
公开(公告)日：2023-05-11
申请号：US17906355
申请日：2020-11-19
IPC分类号： H01M50/284 , H01M10/48 , H01M50/209 , H01M50/298 , H01M50/512 , B60L53/60
CPC分类号： H01M50/284 , H01M10/482 , H01M50/209 , H01M50/298 , H01M50/512 , B60L53/60 , H01M2220/20
摘要： In a battery module, end plates disposed at both ends of battery stack are connected by binding bars. Electrode terminals of respective battery cells and voltage detection circuit of electronic circuit block are connected by a plurality of voltage detection lines. Electronic circuit block is disposed on an outer surface of end plate and fixes one connector formed by linearly disposing a plurality of connecting terminals to which voltage detection lines are connected to circuit board on which voltage detection circuit is mounted. Voltage detection circuit is provided with a plurality of input terminals arranged in a linear manner. In circuit board, connecting terminal and input terminal disposed at opposite positions are connected by a plurality of connection lines. A cell voltage of each battery cell is input from connection line to adjacent input terminals.
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35.发明申请公开(公告)号：US20230139909A1
公开(公告)日：2023-05-04
申请号：US17906618
申请日：2020-11-25
发明人： NAO KOGAMI , KAZUHIRO HARAZUKA , KOJI FUJINAGA
IPC分类号： H01M50/489 , H01M50/417 , H01M50/244 , H01M10/44 , H01M50/505 , B60L1/04
摘要： A power supply device includes: battery block formed by stacking a plurality of battery cells in a thickness with separator interposed therebetween; a pair of end plates disposed on both end surfaces of battery block; and binding bar connected to the pair of end plates and configured to fix battery block in a pressurized state via end plates. Separator includes an elastic plate made of a plastic foam including open cells on a surface of the separator or as a whole.
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公开(公告)号：US20230135786A1
公开(公告)日：2023-05-04
申请号：US17912632
申请日：2021-03-24
发明人： Satoru Mihara , Norie Mantoku
IPC分类号： H01M50/184 , H01M50/538 , H01M50/107 , H01M50/167
摘要： A cylindrical battery according to one embodiment comprises: an electrode assembly obtained by wrapping a positive electrode and a negative electrode around a separator; an electrolyte; a bottomed cylindrical outer can that houses the electrode assembly and the electrolyte; a sealing body that plugs the opening of the outer can; and an annular gasket that is inserted between the outer can and the sealing body. The sealing body is anchored by being crimped to an open end of the outer can via the gasket. The gasket has a projection formed on the outer peripheral surface thereof, the projection protruding outside radially and the projection is in contact with the inner peripheral surface of the open end of the outer casing.
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公开(公告)号：US20230135592A1
公开(公告)日：2023-05-04
申请号：US17912708
申请日：2021-02-08
发明人： Hidemasa Kawai , Naoki Uchida , Haruya Nakai
IPC分类号： H01M4/36 , H01M4/134 , H01M50/406
摘要： This electrode plate for a secondary battery comprises a thin plate-shaped core formed from a metal foil and an active material layer formed on at least one surface of the core. A melted section of the metal foil forming the core is scattered at an end section of the electrode plate for a secondary battery so as to spread from the plate thickness range of the core to the end face of the active material layer, adheres thereto, and is solidified.
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公开(公告)号：US20230125441A1
公开(公告)日：2023-04-27
申请号：US17905525
申请日：2020-11-19
发明人： HIROAKI KITA , TAKASHI INAMURA , YASUMASA KOJIMA
摘要： Voltage detection line (6) includes: first flexible printed circuit board (36) including a plurality of first conductive wires (42) and first insulating film (44) covering the plurality of first conductive wires (42); second flexible printed circuit board (38) including a plurality of second conductive wires (46) and second insulating film (48) covering the plurality of second conductive wires (46); and connection part (40) that is soldered to each of first conductive wires (42) and each of second conductive wires (46) corresponding to each other to electrically connect the plurality of first conductive wires (42) and the plurality of second conductive wires (46), in which the plurality of first conductive wires (42) and the plurality of second conductive wires (46) are electrically connected to a plurality of batteries to detect voltages of the plurality of batteries.
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公开(公告)号：US20230123331A1
公开(公告)日：2023-04-20
申请号：US17794782
申请日：2021-01-19
IPC分类号： H01M4/525
摘要： This positive electrode active material comprises an Ni-containing lithium composite oxide A and an Ni-containing lithium composite oxide B. Each of the Ni-containing lithium composite oxide A and the Ni-containing lithium composite oxide B contains 50% by mole or more of Ni relative to the total number of moles of the metal elements excluding Li; the Ni-containing lithium composite oxide A has an average primary particle diameter of 2 μm or more, an average secondary particle diameter of from 2 μm to 6 μm, and a particle breaking load of 5 mN or more; and the Ni-containing lithium composite oxide B has an average primary particle diameter of 1 μm or less, an average secondary particle diameter of from 10 μm to 20 μm, and a particle breaking load of 20 mN or more, while having a coating layer on the surface of each primary particle.
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公开(公告)号：US20230118798A1
公开(公告)日：2023-04-20
申请号：US17911793
申请日：2021-02-08
发明人： Kazutaka Mita
IPC分类号： H01M50/46 , H01M50/538
摘要： This electrode body for secondary batteries comprises: a positive electrode; a negative electrode; an outer separator; and an inner separator which is arranged inside the outer separator. An outer electrode, which is either the positive electrode or the negative electrode arranged on the outer side, is sandwiched by the outer separator and the inner separator. The outer separator and the inner separator have: two electrode facing parts that face the outermost layers of the outer electrode, while overlapping with each other, with the outer electrode being interposed therebetween; and a terminal overlapping part that is provided at respective ends of the outer separator and the inner separator. The thickness of the front end of the terminal overlapping part is larger than the sum of the thicknesses of the two electrode facing parts.
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