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公开(公告)号：US20230335781A1
公开(公告)日：2023-10-19
申请号：US18072961
申请日：2022-12-01
发明人： Ken Ogata , Yang Yang , Hajime Hoshi , Masatsugu Nakano , Hiroshi Imoto
IPC分类号： H01M10/04 , H01M10/0525 , H01M10/058 , H01M10/48
CPC分类号： H01M10/0481 , H01M10/0525 , H01M10/058 , H01M10/48 , H01M50/20
摘要： A battery cell having a layered pressure homogenizing soft medium for liquid/solid state Li-ion rechargeable batteries. The battery cell of the present technology includes one or more battery pouches, a pressure mechanism external to the battery pouches that applies a pressure to the battery pouches, and a layered pressure homogenizing soft medium that is displaced between the battery pouches and the pressure mechanism. By using a number of pressure homogenizing medium layers, each with a specific range of thickness and within a range of physical properties, the battery pouches displaced between the pressure homogenizing medium layers are evenly pressurized by the mediums due to pressure applied by the pressure mechanism to within a desired range of pressure. The pressure applied to the battery pouches by the pressure homogenizing medium is monitored by a pressure sensor, such as a two-dimensional pressure sensor. If the pressure to the battery pouches is not within a desired pressure range, a controller can control the pressure mechanism to adjust the pressure to the mediums and battery pouches to bring the pressure within the desired range.
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公开(公告)号：US11335943B2
公开(公告)日：2022-05-17
申请号：US16529188
申请日：2019-08-01
发明人： Ken Ogata , Yang Yang , Hajime Hoshi , Masatsugu Nakano , Hiroshi Imoto
摘要： Various variable planar pouch battery pressure optimization systems are presented. The system may include a first and second plate, between which a planar pouch battery cell is installed. Multiple pressure application components may be individually controlled to apply varying pressure to the first and second plate. Various pressure patterns may be tested in order to determine a pressure pattern that optimizes at least one electrical characteristic of the planar pouch battery cell.
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公开(公告)号：US20210336270A1
公开(公告)日：2021-10-28
申请号：US17366410
申请日：2021-07-02
发明人： Ken Ogata , Yang Yang , Hajime Hoshi , Masatsugu Nakano , Hiroshi Imoto
IPC分类号： H01M4/62 , H01M10/0525 , H01M4/66 , H01M10/0587 , H01M50/107 , H01M10/42
摘要： Various arrangements of an anode-free battery cell are presented herein. The battery cell can include a lithium ion buffer layer that is located between a electrolyte and an anode current collector. Lithium ions may be stored within the lithium ion buffer layer when the battery cell is charged, which can decrease an amount of swelling within the battery cell.
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公开(公告)号：US20210175534A1
公开(公告)日：2021-06-10
申请号：US17179701
申请日：2021-02-19
发明人： Ken Ogata , Yang Yang , Hajime Hoshi , Masatsugu Nakano , Hiroshi Imoto
IPC分类号： H01M10/04 , H01M10/643 , H01M10/48 , B30B3/02 , B30B15/34
摘要： Various arrangements for compressing a cylindrical battery cell are presented herein. The cylindrical battery cell may be wrapped in a buffer material. The buffer material may then be compressed using a compression mechanism. The buffer material may uniformly distribute pressure applied to the buffer material to a curved sidewall of the cylindrical battery cell.
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公开(公告)号：US11522212B2
公开(公告)日：2022-12-06
申请号：US16578343
申请日：2019-09-22
发明人： Ken Ogata , Yang Yang , Hajime Hoshi , Masatsugu Nakano , Hiroshi Imoto
IPC分类号： H01M10/04 , H01M10/0525 , H01M10/058 , H01M10/48 , H01M50/20
摘要： A battery cell having a layered pressure homogenizing soft medium for liquid/solid state Li-ion rechargeable batteries. The battery cell of the present technology includes one or more battery pouches, a pressure mechanism external to the battery pouches that applies a pressure to the battery pouches, and a layered pressure homogenizing soft medium that is displaced between the battery pouches and the pressure mechanism. By using a number of pressure homogenizing medium layers, each with a specific range of thickness and within a range of physical properties, the battery pouches displaced between the pressure homogenizing medium layers are evenly pressurized by the mediums due to pressure applied by the pressure mechanism to within a desired range of pressure. The pressure applied to the battery pouches by the pressure homogenizing medium is monitored by a pressure sensor, such as a two-dimensional pressure sensor. If the pressure to the battery pouches is not within a desired pressure range, a controller can control the pressure mechanism to adjust the pressure to the mediums and battery pouches to bring the pressure within the desired range.
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公开(公告)号：US20210104747A1
公开(公告)日：2021-04-08
申请号：US16596696
申请日：2019-10-08
发明人： Ken Ogata , Yang Yang , Hajime Hoshi , Masatsugu Nakano , Hiroshi Imoto
IPC分类号： H01M4/62 , H01M10/0525 , H01M10/42 , H01M2/16
摘要： A battery cell having a cathode, an anode, an electrolyte, and a dendrite absorber material. The dendrite absorber material reacts with lithium dendrite that forms on the anode after cycling the battery cell through charging and discharging cycles. The dendrite absorption material interacts with the lithium dendrite via lithium fusion. As a result of the lithium fusion, the dendrite absorber forms a lithium alloy and prevents expansion of the dendrite past the dendrite absorber material within the cell battery. This helps prevent short-circuiting between the anode and cathode due to lithium dendrite, which would cause performance degradation and safety issues such as fires.
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公开(公告)号：US11695149B2
公开(公告)日：2023-07-04
申请号：US17179701
申请日：2021-02-19
发明人： Ken Ogata , Yang Yang , Hajime Hoshi , Masatsugu Nakano , Hiroshi Imoto
IPC分类号： H01M10/04 , H01M10/643 , B30B3/02 , B30B15/34 , H01M10/48 , H01M50/121 , H01M50/14
CPC分类号： H01M10/0422 , B30B3/02 , B30B15/34 , H01M10/0404 , H01M10/0468 , H01M10/486 , H01M10/643 , H01M50/121 , H01M50/14 , H01M2220/20
摘要： Various arrangements for compressing a cylindrical battery cell are presented herein. The cylindrical battery cell may be wrapped in a buffer material. The buffer material may then be compressed using a compression mechanism. The buffer material may uniformly distribute pressure applied to the buffer material to a curved sidewall of the cylindrical battery cell.
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公开(公告)号：US20230028855A1
公开(公告)日：2023-01-26
申请号：US17736742
申请日：2022-05-04
发明人： Ken Ogata , Yang Yang , Hajime Hoshi , Masatsugu Nakano , Hiroshi Imoto
摘要： Various variable planar pouch battery pressure optimization systems are presented. The system may include a first and second plate, between which a planar pouch battery cell is installed. Multiple pressure application components may be individually controlled to apply varying pressure to the first and second plate. Various pressure patterns may be tested in order to determine a pressure pattern that optimizes at least one electrical characteristic of the planar pouch battery cell.
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公开(公告)号：US11069897B2
公开(公告)日：2021-07-20
申请号：US16414748
申请日：2019-05-16
发明人： Ken Ogata , Yang Yang , Hajime Hoshi , Masatsugu Nakano , Hiroshi Imoto
IPC分类号： H01M4/62 , H01M4/66 , H01M10/0525 , H01M10/0587
摘要： Various arrangements of an anode-free solid-state battery cell are presented herein. The battery cell can include a lithium ion buffer layer that is located between a solid-state electrolyte and an anode current collector. Lithium ions may be stored within the lithium ion buffer layer when the battery cell is charged, which can decrease an amount of swelling within the battery cell.
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公开(公告)号：US10957935B2
公开(公告)日：2021-03-23
申请号：US16412338
申请日：2019-05-14
发明人： Ken Ogata , Yang Yang , Hajime Hoshi , Masatsugu Nakano , Hiroshi Imoto
IPC分类号： H01M10/04 , B30B3/02 , H01M10/643 , H01M10/48 , B30B15/34
摘要： Various arrangements for compressing a cylindrical battery cell are presented herein. The cylindrical battery cell may be wrapped in a buffer material. The buffer material may then be compressed using a compression mechanism. The buffer material may uniformly distribute pressure applied to the buffer material to a curved sidewall of the cylindrical battery cell. The cylindrical battery cell may be heated while the buffer material is being compressed using the compression mechanism.
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