Patents by Inventor Tomoki Tsuji

Tomoki Tsuji has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9899680
    Abstract: The nonaqueous electrolyte secondary battery of the present invention includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and a nonaqueous electrolyte. The positive electrode contains a positive electrode active material composed of a lithium-containing transition metal oxide having a layered crystal structure. The negative electrode contains a negative electrode active material composed of a Ti-based oxide and an additive composed of fluorinated carbon that reacts with lithium at a more noble potential as compared to the negative electrode active material. In the nonaqueous electrolyte secondary battery of the present invention, the battery voltage reaches a discharge cut-off voltage by a potential change in the negative electrode.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: February 20, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tomoki Tsuji, Takayuki Shirane, Shinji Mino
  • Patent number: 9871267
    Abstract: A laminated battery provided with an electricity-producing element and an outer case. The electricity-producing element contains a positive electrode, a negative electrode, and an electrolyte. The outer case comprises two sheets of laminating film and includes the following: a containing section that contains the electricity-producing element; and a sealing section that is formed around the edge of the containing section by bonding the sheets of laminating film to each other. Corners are formed along the boundary between the containing section and the sealing section, and an adhesive resin layer in the sealing section is thicker in corner regions near the aforementioned corners than in other regions.
    Type: Grant
    Filed: January 20, 2014
    Date of Patent: January 16, 2018
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Shin Haraguchi, Shinji Mino, Takayuki Shirane, Tomoki Tsuji
  • Publication number: 20170047575
    Abstract: A wound battery includes an electrode assembly in which a first electrode and a second electrode are wound together via a separator, the electrode assembly being accommodated in a battery case including a bottomed tube-shaped metallic can. The first electrode has a first uncoated region defined by an exposed portion of a first current collector sheet at an end of the first current collector sheet in the axial direction of winding. The first electrode includes a first current collector lead connected to the first uncoated region. The first uncoated region is disposed on the same side as the open end of the metallic can. The second electrode includes a second current collector lead connected thereto. The first and the second current collector leads extend toward the open end of the metallic can. At least a portion of the first uncoated region is covered with an insulating layer, and the insulating layer extends beyond an end face of the first uncoated region.
    Type: Application
    Filed: May 21, 2015
    Publication date: February 16, 2017
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tomoki TSUJI, Akira KAKINUMA, Tetsuya HAYASHI, Keisuke YONEDA
  • Publication number: 20160056463
    Abstract: A negative electrode-regulated non-aqueous electrolyte secondary battery comprises a negative electrode having a negative electrode active material layer, a positive electrode having a positive electrode active material layer, a separator interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte and stops charging as a result of the voltage drop of the negative electrode. In the non-aqueous electrolyte secondary battery, the size of the negative electrode active material layer is larger than the size of the positive electrode active material layer. The positive electrode active material layer contains a lithium-nickel composite oxide (A) represented by the general formula LiNixM1-xO2 (where 0.7?x<1 and M is one or more metals) and a lithium-nickel composite oxide (B) represented by the general formula LiNixCoyM1-x-yO2 (where 0<x?0.5, 0<y<1, and M is one or more metals except Co).
    Type: Application
    Filed: March 10, 2014
    Publication date: February 25, 2016
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Tomoki Tsuji, Takayuki Shirane, Shinji Mino, Shin Haraguchi
  • Publication number: 20150333358
    Abstract: A laminated battery provided with an electricity-producing element and an outer case. The electricity-producing element contains a positive electrode, a negative electrode, and an electrolyte. The outer case comprises two sheets of laminating film and includes the following: a containing section that contains the electricity-producing element; and a sealing section that is formed around the edge of the containing section by bonding the sheets of laminating film to each other. Corners are formed along the boundary between the containing section and the sealing section, and an adhesive resin layer in the sealing section is thicker in corner regions near the aforementioned corners than in other regions.
    Type: Application
    Filed: January 20, 2014
    Publication date: November 19, 2015
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Shin Haraguchi, Shinji Mino, Takayuki Shirane, Tomoki Tsuji
  • Publication number: 20140080003
    Abstract: The nonaqueous electrolyte secondary battery of the present invention includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and a nonaqueous electrolyte. The positive electrode contains a positive electrode active material composed of a lithium-containing transition metal oxide having a layered crystal structure. The negative electrode contains a negative electrode active material composed of a Ti-based oxide and an additive composed of fluorinated carbon that reacts with lithium at a more noble potential as compared to the negative electrode active material. In the nonaqueous electrolyte secondary battery of the present invention, the battery voltage reaches a discharge cut-off voltage by a potential change in the negative electrode.
    Type: Application
    Filed: March 26, 2013
    Publication date: March 20, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Tomoki Tsuji, Takayuki Shirane, Shinji Mino