中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

45 records (took 0.018 seconds)

    LITHIUM ION BATTERY
    31.
    发明公开
    LITHIUM ION BATTERY 审中-公开

    公开(公告)号：US20230141498A1

    公开(公告)日：2023-05-11

    申请号：US17794076

    申请日：2021-01-21

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Kazuko Asano ,  Yukihiro Oki ,  Nanami Takeda ,  Mitsuhiro Hibino

    IPC: H01M4/38 ,  H01M10/0525 ,  H01M4/62

    CPC classification number: H01M4/387 ,  H01M4/622 ,  H01M10/0525 ,  H01M2004/027

    Abstract: Provided is a lithium ion battery with a positive electrode having a positive electrode mixture layer that contains a positive electrode active material, and a negative electrode having a negative electrode mixture layer that contains a negative electrode active material, the lithium ion battery being charged and discharged by the movement of lithium ions between the positive electrode and the negative electrode. The negative electrode mixture layer contains a negative electrode active material represented by general formula M3Me2X7 (in the formula, M includes at least one of La and Ca; Me includes at least one of Mn, Ni, Fe, and Co; and X includes at least one of Ge, Si, Sn, and Al), and a binding agent that contains cyano groups, the ratio of the binding agent in the negative electrode mixture layer being 0.5-7.0 mass% (inclusive).

    LITHIUM ION BATTERY
    32.
    发明申请
    LITHIUM ION BATTERY 有权

    公开(公告)号：US20230100030A1

    公开(公告)日：2023-03-30

    申请号：US17800768

    申请日：2021-02-25

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Kazuko Asano ,  Yukihiro Oki ,  Nanami Takeda ,  Mitsuhiro Hibino

    IPC: H01M4/38 ,  H01M10/0525

    Abstract: The present invention provides a lithium ion battery which comprises a positive electrode having a positive electrode mixture layer that contains a positive electrode active material, and a negative electrode having a negative electrode mixture layer that contains a negative electrode active material, and which is charged and discharged by the movement of lithium ions between the positive electrode and the negative electrode. The negative electrode mixture layer contains a negative electrode active material represented by general formula La3(1-x)M3xNi2(1-y)Me2yX7 (wherein M contains at least one of Ca, Mg and Sr; Me contains at least one of Mn, Co, Cu and Fe; X contains at least one of Ge, Si, Sn and Al; 0.1≤x

    POSITIVE ELECTRODE FOR SECONDARY BATTERY, AND METHOD FOR PRODUCING POSITIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY
    39.
    发明申请
    POSITIVE ELECTRODE FOR SECONDARY BATTERY, AND METHOD FOR PRODUCING POSITIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY 有权

    公开(公告)号：US20250105274A1

    公开(公告)日：2025-03-27

    申请号：US18724795

    申请日：2022-10-31

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Youshin Lee ,  Mitsuhiro Hibino ,  Kensuke Nakura

    IPC: H01M4/525 ,  H01M4/02 ,  H01M4/04 ,  H01M10/0525

    Abstract: This positive electrode comprises a positive electrode current collector, and a positive electrode mixture layer disposed on the positive electrode current collector, wherein: the positive electrode mixture layer has a positive electrode active material containing a lithium-containing composite oxide composed of secondary particles in which primary particles are aggregated; the lithium-containing composite oxide has a Nb element; the average particle diameter of the primary particles is 1 μm or less; and in a depth profile obtained by time-of-flight secondary ion mass spectrometry (TOF-SIMS) of a cross-section of the positive electrode mixture layer, when the minimum ionic strength of Nb in the region from the surface of the positive electrode mixture layer to 500 nm in the thickness direction is Imin and the maximum ionic strength of Nb in a region from 500 nm to 1000 nm in the thickness direction is Imax, Imax/Imin is at least 1.5.

Patent Agency Ranking