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公开(公告)号:US11056886B2
公开(公告)日:2021-07-06
申请号:US16615523
申请日:2018-04-16
Inventor: Masaki Kato , Naohisa Morimoto , Masaaki Kuranuki , Jun Yamasaki , Yohei Ishii , Koichi Sawada
Abstract: In a power storage system, a three-phase AC wire is connected to a three-phase AC power system. Power storage blocks, each of which includes a power storage module and a power conditioner, are connected in parallel to the three-phase AC wire. A system controller individually controls power storage blocks. The power storage modules each includes: a power storage unit; and a management unit that manages the power storage unit. The power conditioner includes a power converter and a controller. The power converter converts DC power discharged into single-phase AC power and outputs the converted AC power to two lines of the three-phase AC wire, or converts single-phase AC power received from the two lines of the three-phase AC wire into DC power and charges the power storage unit. The controller is connected to the system controller via a communication line and the management unit via a communication line.
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公开(公告)号:US11843128B2
公开(公告)日:2023-12-12
申请号:US17253599
申请日:2019-02-08
Inventor: Koichi Sawada , Takeshi Nagao , Jiro Muratsu , Keisuke Naito
IPC: H01M50/503 , H01M50/213 , H01M50/50 , H01M50/583 , H01M50/593 , H01M50/107 , H01M50/545 , H01M50/559 , H01M50/526 , H01M50/20 , H01M50/55 , H01M50/152
CPC classification number: H01M50/503 , H01M50/213 , H01M50/50 , H01M50/583 , H01M50/107 , H01M50/152 , H01M50/20 , H01M50/526 , H01M50/545 , H01M50/55 , H01M50/559 , H01M50/593
Abstract: A cell module includes a plurality of cells that each have a cylindrical shape and include a positive-electrode terminal and a negative-electrode terminal disposed on one end of the cell. One of the terminals is located at a center, and the other terminal is located on a circumferential edge and is electrically connected to a side surface of a tube of each of the cells, a connection intervening member mounted on the other terminal includes a tab extending along the side surface of the tube and electrically connected to the side surface, and a hole that causes the center of the one end to be exposed. The plurality of cells make up a cell block where the one ends are oriented in an identical direction, and cells adjacent to each other are aligned in rows, on the one ends of the plurality of cells, a plate having electrical insulating properties is disposed, the plate is provided with a hole that causes the one end of each of the cells to be exposed and is further provided with a plurality of conductive members on a surface of the plate distant from the cells, the conductive members extend along the rows of the cells aligned, two of the conductive members are disposed for each cell block and include terminal connectors electrically connected to terminals, having identical polarity, of the cells in each cell block, and the other terminals are connected with the terminal connectors through the connection intervening member.
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公开(公告)号:US11276861B2
公开(公告)日:2022-03-15
申请号:US16391375
申请日:2019-04-23
Inventor: Koichi Sawada , Tsutomu Kawashima
Abstract: A positive electrode for an air battery includes a current collector and a porous layer including an electroconductive material. The current collector includes a base having a first major surface, and a plurality of projections disposed on at least the first major surface of the base. The first major surface of the base is a planar surface. The porous layer is disposed on the first major surface of the base and is in direct contact with the first major surface. The projections are in direct contact with the porous layer in the interior of the porous layer.
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公开(公告)号:US10700343B2
公开(公告)日:2020-06-30
申请号:US16155848
申请日:2018-10-09
Inventor: Koichi Sawada
Abstract: A positive electrode is for use in an air battery. The positive electrode includes a current collector including one or more openings, and an electroconductive layer including a porous body, the porous body including a carbon material. In the electroconductive layer, a second pore volume of a first region is greater than a second pore volume of a second region, wherein it is assumed that the electroconductive layer includes the first and second regions, the second region faces the one or more openings of the current collector, and the first region is located opposite to the second region with respect to a central plane containing midpoints in a thickness direction of the electroconductive layer.
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公开(公告)号:US11183794B2
公开(公告)日:2021-11-23
申请号:US16326066
申请日:2017-10-23
Inventor: Koichi Sawada
IPC: H01R13/631 , H01M10/613 , H01M10/6563 , H01M10/63 , H01M50/20 , H01M50/528
Abstract: A connector structure has a first connector unit including a first connector and a first terminal, and a second connector unit including a second connector and a second terminal. The second connector unit has a locating pin and an insertion hole into which the locating pin is inserted. In the connector structure, the first connector and the first terminal, and the second connector and the second terminal are brought into a connectible state when the locating pin is inserted into the insertion hole.
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