公开(公告)号：US20140347788A1

公开(公告)日：2014-11-27

申请号：US14227727

申请日：2014-03-27

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Takatoshi NAGASE ,  Naoto HAGIWARA

IPC: H01G11/28 ,  H01G11/86

CPC classification number: H01G11/28 ,  H01G9/15 ,  H01G11/86 ,  Y02E60/13

Abstract: An electrode for an electrochemical device includes a current collector, electrode layer, and active material layer. The electrode layer is formed on the current collector and contains an active material. The active material layer is formed in an area on the current collector where the electrode layer is not formed, and contains an active material. The electrode is capable of reducing the leak current while improving the device reliability.

Abstract translation: 用于电化学装置的电极包括集电器，电极层和活性材料层。 电极层形成在集电体上并含有活性物质。 活性物质层形成在集电体上未形成电极层的区域中，并含有活性物质。 电极能够在提高器件可靠性的同时降低漏电流。

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.

公开(公告)号：US20170104216A1

公开(公告)日：2017-04-13

申请号：US15250058

申请日：2016-08-29

Applicant: Taiyo Yuden Co., Ltd.

Inventor： Takatoshi NAGASE ,  Shinji ISHll ,  Koji KANO ,  Katsunori YOKOSHIMA ,  Hiroki TAKAHASHI ,  Yuki KAWAI ,  Takahiro NAGASHIMA

IPC: H01M4/62 ,  H01M10/04 ,  H01M4/583

CPC classification number: H01M4/622 ,  H01G11/26 ,  H01G11/28 ,  H01M4/02 ,  H01M4/133 ,  H01M10/04 ,  H01M10/0431 ,  H01M10/05

Abstract: One object is to provide an electrochemical device having a small inner resistance and a high reliability in a high temperature and a high voltage. In accordance with one aspect, the electrochemical device of the present invention includes a positive electrode and a negative electrode. At least one of the positive electrode and the negative electrode includes a current collector layer and an active material layer formed on at least one surface of the current collector layer, and the active material layer includes electrode active material bodies and a mixture film formed between the electrode active material bodies, the mixture film having a thickness of 0.1 μm to 0.4 μm.

公开(公告)号：US20130120909A1

公开(公告)日：2013-05-16

申请号：US13665580

申请日：2012-10-31

Applicant: Taiyo Yuden Co., Ltd.

Inventor： Takatoshi NAGASE ,  Koji KANO ,  Takeo TSUZUKI

IPC: H01G9/145 ,  H01G9/02

CPC classification number: H01G11/52 ,  Y02E60/13

Abstract: An object of the present invention is to provide a way to reduce the internal resistance of a lithium ion capacitor without causing its capacity or withstand voltage to drop. The present invention provides a lithium ion capacitor having a positive electrode, a negative electrode, a separator, and an electrolyte solution, wherein the separator contains cellulose that has been given a treatment to create carbon-carbon double bonds.

Abstract translation: 本发明的目的是提供一种降低锂离子电容器的内阻而不会使其容量或耐压下降的方法。 本发明提供一种具有正极，负极，隔膜和电解质溶液的锂离子电容器，其中，所述隔膜含有已经进行了碳 - 碳双键的处理的纤维素。

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

IPC: H01G11/06 ,  H01G11/82 ,  H01G11/28 ,  H01G11/70 ,  H01G11/86

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.

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

IPC: H01G11/06 ,  H01G11/28 ,  H01G11/52 ,  H01G11/70 ,  H01G11/82 ,  H01G11/86 ,  H01M2/16 ,  H01M10/0587

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.

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

IPC: H01G11/28 ,  H01G11/58 ,  H01G11/68 ,  H01M10/04 ,  H01G11/52

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.

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

IPC: H01G11/52 ,  H01G11/86 ,  H01G11/06 ,  H01G11/70

CPC classification number: H01G11/06 ,  H01G11/28 ,  H01G11/70 ,  H01G11/82 ,  H01G11/86 ,  Y02E60/13

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.

公开(公告)号：US20170011862A1

公开(公告)日：2017-01-12

申请号：US15181305

申请日：2016-06-13

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Takeo TSUZUKI ,  Takatoshi NAGASE

IPC: H01G11/62

CPC classification number: H01G11/62 ,  H01G11/60 ,  Y02E60/13

Abstract: An electric double-layer capacitor contains an electrolytic solution, wherein the electrolytic solution comprises 1.2 to 1.8 mol/L of spirobipyrrolidinium tetrafluoroborate as electrolyte as well as solvent, where the solvent contains 50 to 60 percent by volume of propylene carbonate, 30 to 36 percent by volume of dimethyl carbonate, and 4 to 20 percent by volume of ethyl methyl carbonate. The electric double-layer capacitor can maintain its initial high capacitance and low internal resistance, while undergoing smaller characteristic changes after being exposed to low-temperature environments, high-voltage environments or high-temperature environments.

Abstract translation: 电双层电容器包含电解液，其中电解液包含1.2至1.8mol / L的作为电解质的四氟硼酸螺吡咯烷鎓溶剂以及溶剂，其中溶剂含有50-60％（体积）的碳酸亚丙酯，30-36％ 的碳酸二甲酯和4〜20体积％的碳酸甲乙酯。 电双层电容器可以保持其初始高电容和低内阻，同时在暴露于低温环境，高压环境或高温环境之后经历更小的特性变化。

公开(公告)号：US20140347789A1

公开(公告)日：2014-11-27

申请号：US14227749

申请日：2014-03-27

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Takatoshi NAGASE ,  Naoto HAGIWARA

IPC: H01G11/28 ,  H01G11/86

CPC classification number: H01G11/28 ,  H01G11/70 ,  H01G11/86 ,  Y02E60/13 ,  Y10T29/49204

Abstract: An electrode for an electrochemical device includes a current collector and an electrode layer. The current collector has a main face and a side face. The side face has a concave-convex shape whose convex part is constituted by a projection extending along the main face. The projection is formed along a periphery of the electrode layer, forming a support portion. The electrode layer contains active material and is formed on and in contact with the main face including a surface formed by the support portion. The electrode is capable of mitigating the concentration of current at the edges of the electrode layer.

Abstract translation: 用于电化学装置的电极包括集电器和电极层。 集电体具有主面和侧面。 侧面具有凹凸形状，其凸部由沿主面延伸的突起构成。 突起沿电极层的周边形成，形成支撑部。 电极层包含活性物质，并且与主面形成并与主面接触，包括由支撑部形成的表面。 电极能够减轻电极层边缘处的电流浓度。