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公开(公告)号：US20170288275A1
公开(公告)日：2017-10-05
申请号：US15474349
申请日：2017-03-30
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Katsunori YOKOSHIMA , Shinji ISHII , Koji KANO , Hiroki TAKAHASHI , Takatoshi NAGASE
IPC: H01M10/0587 , H01G11/52 , H01M10/42 , H01G11/28 , H01M10/0525 , H01M4/587
CPC classification number: H01M10/0587 , H01G11/28 , H01G11/74 , H01G11/76 , H01G11/80 , H01G11/82 , H01M4/0461 , H01M4/587 , H01M10/0525 , Y02E60/13
Abstract: An electrochemical device has a positive electrode, a negative electrode, a negative-electrode terminal, separators, and electrolytic solution, where the positive electrode, negative electrode, and separators are stacked and wound together. The negative-electrode terminal is made of metal, and has a joining part which is a part joined to the principal face of the negative-electrode collector. A protective tape is made of insulating material and attached to the negative electrode to cover the joining part. The negative electrode has a first width along the direction parallel with the axis of winding. The positive electrode has a second width, which is smaller than the first width, along the direction parallel with the axis of winding. The length of the protective tape along the direction parallel with the axis of winding is equal to or greater than the second width.
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Patent Agency Ranking
公开(公告)号：US20160260552A1
公开(公告)日：2016-09-08
申请号：US15041861
申请日：2016-02-11
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Hiromi SATO , Tomofumi AKIBA , Shinji ISHII , Katsunori YOKOSHIMA
CPC classification number: H01G11/80 , H01G11/78 , H01M2/021 , H01M2/0212 , H01M2/0275 , H01M2/0277 , H01M2/0285 , H01M2/0287 , H01M2/0292 , H01M2/1241 , Y02E60/13
Abstract: 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.
Abstract translation: 蓄电单元具有蓄电元件和覆盖体。 覆盖体容纳蓄电元件，并且具有在蓄电元件侧具有第一主面的金属层和相对侧的第二主面，层叠在第一主面上的由树脂制成的内部树脂层， 由树脂制成的外部树脂层层压到第二主面上，在金属层的第二主面侧形成有槽部。 上述结构提供了在异常情况下能够安全地释放上升的内部压力的高度可靠的蓄电池，覆盖膜和蓄电模块。
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公开(公告)号：US20190066934A1
公开(公告)日：2019-02-28
申请号：US16177150
申请日：2018-10-31
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Koji KANO , Shinji ISHII , Katsunori YOKOSHIMA , Hiroki TAKAHASHI , Takatoshi NAGASE
Abstract: 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：US20180108494A1
公开(公告)日：2018-04-19
申请号：US15783985
申请日：2017-10-13
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Hiroki TAKAHASHI , Koji KANO , Takatoshi NAGASE , Katsunori YOKOSHIMA , Shinji ISHII
CPC classification number: H01G11/06 , H01G11/26 , H01G11/28 , H01G11/52 , H01G11/70 , H01G11/82 , H01G11/86 , H01M2/1673 , H01M10/0431 , H01M10/052 , H01M10/0587 , Y02E60/13
Abstract: 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：US20170278642A1
公开(公告)日：2017-09-28
申请号：US15462739
申请日：2017-03-17
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Takatoshi NAGASE , Shinji ISHII , Koji KANO , Katsunori YOKOSHIMA
CPC classification number: H01G11/28 , H01G11/26 , H01G11/52 , H01G11/58 , H01G11/66 , H01G11/68 , H01M10/0431 , H01M10/0587 , Y02E60/13
Abstract: 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：US20170236656A1
公开(公告)日：2017-08-17
申请号：US15433811
申请日：2017-02-15
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Koji KANO , Shinji ISHII , Katsunori YOKOSHIMA , Hiroki TAKAHASHI , Takatoshi NAGASE
Abstract: 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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