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公开(公告)号：US10992005B2
公开(公告)日：2021-04-27
申请号：US16212203
申请日：2018-12-06
发明人： Eugene Levin
IPC分类号： H01M50/124 , H01M10/0525 , H01M10/0585 , H01M50/116
摘要： An electrochemical pouch cell includes a pouch cell housing and an electrode assembly disposed in the housing. The housing is formed of a single blank that is progressively drawn to form first and second recesses in the sheet, where the first recess coincides with a portion of the second recess. The blank is then folded so that the recesses are aligned and open facing each other. The electrode assembly is disposed in the space defined within and between the recesses, and flange portions of the material surrounding the recesses are sealed together to form a sealed electrochemical cell in which one side of the cell is free of the flange. The progressive drawing process along with the configuration of the recesses allows the cell housing to have an increased depth relative to some conventional pouch cell housings.
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公开(公告)号：US20200185668A1
公开(公告)日：2020-06-11
申请号：US16212203
申请日：2018-12-06
发明人： Eugene Levin
IPC分类号： H01M2/02 , H01M10/0525 , H01M10/0585
摘要： An electrochemical pouch cell includes a pouch cell housing and an electrode assembly disposed in the housing. The housing is formed of a single blank that is progressively drawn to form first and second recesses in the sheet, where the first recess coincides with a portion of the second recess. The blank is then folded so that the recesses are aligned and open facing each other. The electrode assembly is disposed in the space defined within and between the recesses, and flange portions of the material surrounding the recesses are sealed together to form a sealed electrochemical cell in which one side of the cell is free of the flange. The progressive drawing process along with the configuration of the recesses allows the cell housing to have an increased depth relative to some conventional pouch cell housings.
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公开(公告)号：US11588183B2
公开(公告)日：2023-02-21
申请号：US16228524
申请日：2018-12-20
发明人： Mehul Botadra , Eugene Levin , Mark Kotik , Paul Frick
IPC分类号： H01M10/0587 , H01M10/052 , H01M10/04 , H01M10/0525
摘要： An electrochemical cell includes a cell housing and an electrode assembly disposed in the cell housing. The electrode assembly includes an electrode pair that is arranged to form a winding having a polygonal spiral wound shape in which a radius of the corner portions of each turn of the winding is constant, regardless of the number of turns. In addition, a length of the linear portions of one turn of the winding is different than a length of the linear portions of another turn of the winding. Since each turn of the winding includes the corner portions having a desired radius, the volumetric efficiency of the electrode assembly including the winding within a cell housing is improved relative to some cells that use conventional windings. An apparatus and method of forming a polygonal spiral wound winding are disclosed.
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4.发明申请公开(公告)号：US20190123392A1
公开(公告)日：2019-04-25
申请号：US16228524
申请日：2018-12-20
发明人： Mehul Botadra , Eugene Levin , Mark Kotik , Paul Frick
IPC分类号： H01M10/0587 , H01M10/04 , H01M10/052 , H01M10/0525
摘要： An electrochemical cell includes a cell housing and an electrode assembly disposed in the cell housing. The electrode assembly includes an electrode pair that is arranged to form a winding having a polygonal spiral wound shape in which a radius of the corner portions of each turn of the winding is constant, regardless of the number of turns. In addition, a length of the linear portions of one turn of the winding is different than a length of the linear portions of another turn of the winding. Since each turn of the winding includes the corner portions having a desired radius, the volumetric efficiency of the electrode assembly including the winding within a cell housing is improved relative to some cells that use conventional windings. An apparatus and method of forming a polygonal spiral wound winding are disclosed.
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公开(公告)号：US10224573B2
公开(公告)日：2019-03-05
申请号：US15082743
申请日：2016-03-28
发明人： Mehul Botadra , Eugene Levin , Mark Kotik , Paul Frick
IPC分类号： H01M10/04 , H01M10/0587 , H01M10/0525 , H01M10/052
摘要： An electrochemical cell includes a cell housing and an electrode assembly disposed in the cell housing. The electrode assembly includes an electrode pair that is arranged to form a winding having a polygonal spiral wound shape in which a radius of the corner portions of each turn of the winding is constant, regardless of the number of turns. In addition, a length of the linear portions of one turn of the winding is different than a length of the linear portions of another turn of the winding. Since each turn of the winding includes the corner portions having a desired radius, the volumetric efficiency of the electrode assembly including the winding within a cell housing is improved relative to some cells that use conventional windings. An apparatus and method of forming a polygonal spiral wound winding are disclosed.
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6.发明申请公开(公告)号：US20190131661A1
公开(公告)日：2019-05-02
申请号：US16228490
申请日：2018-12-20
发明人： Mehul Botadra , Eugene Levin , Mark Kotik , Paul Frick
IPC分类号： H01M10/0587 , H01M10/04 , H01M10/052 , H01M10/0525
摘要： An electrochemical cell includes a cell housing and an electrode assembly disposed in the cell housing. The electrode assembly includes an electrode pair that is arranged to form a winding having a polygonal spiral wound shape in which a radius of the corner portions of each turn of the winding is constant, regardless of the number of turns. In addition, a length of the linear portions of one turn of the winding is different than a length of the linear portions of another turn of the winding. Since each turn of the winding includes the corner portions having a desired radius, the volumetric efficiency of the electrode assembly including the winding within a cell housing is improved relative to some cells that use conventional windings. An apparatus and method of forming a polygonal spiral wound winding are disclosed.
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7.发明申请公开(公告)号：US20170279156A1
公开(公告)日：2017-09-28
申请号：US15082743
申请日：2016-03-28
发明人： Mehul Botadra , Eugene Levin , Mark Kotik , Paul Frick
IPC分类号： H01M10/0587 , H01M10/0525 , H01M10/04
CPC分类号： H01M10/0587 , H01M10/0409 , H01M10/0431 , H01M10/049 , H01M10/052 , H01M10/0525 , H01M2220/20 , Y02E60/122 , Y02P70/54 , Y02T10/7011
摘要： An electrochemical cell includes a cell housing and an electrode assembly disposed in the cell housing. The electrode assembly includes an electrode pair that is arranged to form a winding having a polygonal spiral wound shape in which a radius of the corner portions of each turn of the winding is constant, regardless of the number of turns. In addition, a length of the linear portions of one turn of the winding is different than a length of the linear portions of another turn of the winding. Since each turn of the winding includes the corner portions having a desired radius, the volumetric efficiency of the electrode assembly including the winding within a cell housing is improved relative to some cells that use conventional windings. An apparatus and method of forming a polygonal spiral wound winding are disclosed.
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公开(公告)号：US20180366690A1
公开(公告)日：2018-12-20
申请号：US15622885
申请日：2017-06-14
发明人： Eugene Levin
摘要： An electrochemical cell includes a housing, and an electrode assembly disposed in the housing. The electrode assembly comprises a positive electrode, a negative electrode and a separator disposed between the positive electrode and the negative electrode. The housing is formed of a first case half and a second case half. Each case half is formed of a metal foil laminate material and includes a wedge-shaped central recess that is surrounded by a flange. The flange of the first case half is joined to the flange of the second case half along a seal line that surrounds the respective central recesses. The central recesses cooperate to define an interior space of the housing that contains the electrode assembly, and the interior space has the shape of a rectangular prism. The seal line extends along a diagonal of a side of the rectangular prism. A method of forming the housing is described.
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公开(公告)号：US11050103B2
公开(公告)日：2021-06-29
申请号：US16506260
申请日：2019-07-09
申请人： Robert Bosch GmbH
发明人： Eugene Levin
IPC分类号： H01M50/124 , B21D22/20 , B29C43/14 , B29C51/26 , H01M50/10 , H01M50/116 , B29C65/02 , B29L9/00 , B29L31/00 , B29K23/00 , B29C65/00 , B29K705/02 , B29C51/08 , B29L31/34 , H01M50/103
摘要： An electrochemical cell includes a housing, and an electrode assembly disposed in the housing. The electrode assembly comprises a positive electrode, a negative electrode and a separator disposed between the positive electrode and the negative electrode. The housing is formed of a first case half and a second case half. Each case half is formed of a metal foil laminate material and includes a wedge-shaped central recess that is surrounded by a flange. The flange of the first case half is joined to the flange of the second case half along a seal line that surrounds the respective central recesses. The central recesses cooperate to define an interior space of the housing that contains the electrode assembly, and the interior space has the shape of a rectangular prism. The seal line extends along a diagonal of a side of the rectangular prism. A method of forming the housing is described.
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公开(公告)号：US20210283671A1
公开(公告)日：2021-09-16
申请号：US16332408
申请日：2017-11-22
申请人： Robert Bosch GmbH
发明人： Mark Kotik , Eugene Levin , David Sarazin
IPC分类号： B21D22/20 , B21D51/52 , H01M50/124
摘要： A forming device is configured to form metal laminated sheet material into a tray-shaped case half while allowing the material to form pleats in the corners of the recess during the forming process while preventing formation of pleats along the flange. The device forms the flange so that excess material in the corners of the case halves is arranged in an undulating shape. As a result, the flange has a waved or ruffled configuration at each corner. Two such case halves are sealed together along the flange to form a reliably sealed package. A method of forming pouch cell is also described.
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