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公开(公告)号：US10553369B2
公开(公告)日：2020-02-04
申请号：US15475078
申请日：2017-03-30
摘要： An electric storage cell has an electric storage element and a covering film package. The covering film package houses the electric storage element and includes: a metal layer having a first principle face on the electric storage element side and a second principle face on the opposite side of the first principle face, an internal resin layer laminated to the first principle face, and an external resin layer laminated to the second principle face, with a slit formed in the external resin layer; wherein the contact area further includes a non-seal area between the seal area and the electric storage element as viewed from above, wherein the seal area has a projecting area that penetrates into the non-seal area, and the slit is provided between the projecting area and the electric storage element as viewed from above.
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公开(公告)号：US10410799B2
公开(公告)日：2019-09-10
申请号：US15462739
申请日：2017-03-17
发明人： Takatoshi Nagase , Shinji Ishii , Koji Kano , Katsunori Yokoshima
IPC分类号： H01M10/04 , H01G11/28 , H01G11/52 , H01G11/26 , H01G11/66 , H01M10/0587 , H01G11/58 , H01G11/68
摘要： An electrochemical device includes a positive electrode, a negative electrode, and separators which are stacked and wound together, and electrolytic solution. A negative-electrode terminal is provided which is made of metal, and has a joining part which is a part joined to the principal face of the negative-electrode collector. The negative electrode has a first width, the positive electrode has a second width, which is smaller than the first width, and the separators have a third width, which is greater than the first width, along the direction parallel with the center axis of winding. The length of the joining part along the direction parallel with the center axis of winding is equal to or greater than the second width, but equal to or smaller than the third width.
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公开(公告)号：US10381171B2
公开(公告)日：2019-08-13
申请号：US15041861
申请日：2016-02-11
发明人： Hiromi Sato , Tomofumi Akiba , Shinji Ishii , Katsunori Yokoshima
摘要： An electric storage cell has an electric storage element and a covering body. The covering body houses the electric storage element and has a metal layer with a first principal face on the electric storage element side and a second principal face on the opposite side, an internal resin layer made of resin laminated onto the first principal face, and an external resin layer made of resin laminated onto the second principal face, with a groove part formed on the second principal face side of the metal layer. The above structures provides a highly reliable electric storage cell, covering film, and electric storage module capable of releasing the rising internal pressure safely in the event of abnormality.
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公开(公告)号：US10658125B2
公开(公告)日：2020-05-19
申请号：US16177150
申请日：2018-10-31
摘要： An electrochemical device is constituted by a positive electrode, a negative electrode, and separators that are wound in such a way that the first principal face of the negative electrode and third principal face of the positive electrode are on the inner side of winding, while the second principal face of the negative electrode and fourth principal face of the positive electrode are on the outer side of winding, with the separators separating the positive electrode and negative electrode; wherein the second principal face has a first region opposed to the positive electrode via the separator and a second region on the outermost side of winding and not opposed to the positive electrode, the second region includes a first uncoated region where no negative electrode active material layer is formed, and a metal lithium is joined to the first uncoated region and immersed in electrolytic solution.
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公开(公告)号：US10601009B2
公开(公告)日：2020-03-24
申请号：US15475063
申请日：2017-03-30
发明人： Takayuki Tsuchiya , Hiromi Sato , Shinji Ishii
IPC分类号： H01M2/12 , H01M2/02 , H01G11/74 , H01G11/82 , H01G11/78 , H01M4/587 , H01M10/0525 , H01G11/12
摘要： An electric storage cell has an electric storage element and a covering film package. The covering film package houses the electric storage element and includes: a metal layer having a first principle face on the electric storage element side and a second principle face on the opposite side of the first principle face, an internal resin layer made of synthetic resin and laminated to the first principle face, and an external resin layer made of synthetic resin and laminated to the second principle face, with a slit formed at least in the external resin layer.
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公开(公告)号：US10545192B2
公开(公告)日：2020-01-28
申请号：US16148882
申请日：2018-10-01
发明人： Takayuki Tsuchiya , Shinji Ishii
IPC分类号： G01R31/36 , H01G11/78 , G01R31/396 , H01G11/76 , H01G11/10 , H01G11/08 , H01M10/48 , H01M10/0525
摘要： An electric storage module includes an electric storage cell, a voltage detection board, and a spacer. The electric storage cell has an electric storage element, as well as terminals electrically connected to the positive or negative electrodes of the electric storage element. The voltage detection board has a land and wiring provided on it. The spacer has electrical conductivity and contacts the terminal and the land.
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公开(公告)号：US10784052B2
公开(公告)日：2020-09-22
申请号：US16138471
申请日：2018-09-21
发明人： Takayuki Tsuchiya , Shinji Ishii
IPC分类号： H01M2/00 , H01G11/12 , H01M2/10 , H01G11/82 , H01G11/80 , H01M10/42 , H01M2/02 , H01M2/12 , H01M10/04 , H01M10/0525 , H01M10/52 , H01M10/54
摘要： An electric storage module includes an electric storage cell and an enclosure, wherein the electric storage cell includes an electric storage element and an exterior body in which the electric storage element is sealed; the enclosure has a housing space in which the electric storage cell is housed; the enclosure has a through hole that connects the housing space and the exterior space; and the through hole is formed at a position corresponding to the part of the electric storage cell where the electric storage element does not exist.
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公开(公告)号：US10658124B2
公开(公告)日：2020-05-19
申请号：US15783985
申请日：2017-10-13
IPC分类号： H01G11/06 , H01G11/26 , H01M10/052 , H01M10/04 , H01G11/28 , H01G11/70 , H01G11/86 , H01M2/16 , H01M10/0587 , H01G11/52 , H01G11/82
摘要： In an embodiment, an electrochemical device includes a winding structure which has a negative electrode, a positive electrode, and separators stacked and wound together; a negative-electrode terminal; a positive-electrode terminal; a first protective tape which covers the negative-electrode terminal and a negative-electrode active material layer; a second protective tape which covers the positive-electrode terminal and a positive-electrode active material layer; and electrolyte, wherein the positive-electrode terminal is separated from the negative-electrode terminal by a first distance. The width corresponding to the sum of a first width of the first protective tape along a winding direction of the winding structure, and a second width of the second protective tape along the winding direction, is smaller than a value obtained by multiplying the first distance by pi.
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公开(公告)号：US10403871B2
公开(公告)日：2019-09-03
申请号：US15475067
申请日：2017-03-30
发明人： Takayuki Tsuchiya , Hiromi Sato , Shinji Ishii
IPC分类号： H01M2/12 , H01G11/14 , H01G11/58 , H01M2/10 , H01M10/0566 , H01M2/02 , H01G11/78 , H01G11/06 , H01M10/0525
摘要： An electric storage cell has an electric storage element and a covering film package. The covering film package houses the electric storage element and includes: a metal layer having a first principle face on the electric storage element side and a second principle face on the opposite side of the first principle face, an internal resin layer made of synthetic resin and laminated to the first principle face, and an external resin layer made of synthetic resin and laminated to the second principle face, with a slit formed at least in the external resin layer; wherein a stress mitigation part to mitigate any stress that tries to separate the internal resin layers that are contacting each other, and a stress concentration part where this stress concentrates, are provided between the slit and the electric storage element.
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公开(公告)号：US10354809B2
公开(公告)日：2019-07-16
申请号：US15433811
申请日：2017-02-15
IPC分类号： H01G11/06 , H01G11/52 , H01G11/70 , H01G11/86 , H01G9/00 , H01G9/048 , H01G11/28 , H01G11/82
摘要： An electrochemical device is constituted by a positive electrode, a negative electrode, and separators that are wound in such a way that the first principal face of the negative electrode and third principal face of the positive electrode are on the inner side of winding, while the second principal face of the negative electrode and fourth principal face of the positive electrode are on the outer side of winding, with the separators separating the positive electrode and negative electrode; wherein the second principal face has a first region opposed to the positive electrode via the separator and a second region on the outermost side of winding and not opposed to the positive electrode, the second region includes a first uncoated region where no negative electrode active material layer is formed, and a metal lithium is joined to the first uncoated region and immersed in electrolytic solution.
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