公开(公告)号：US20230361313A1

公开(公告)日：2023-11-09

申请号：US17634391

申请日：2021-03-30

Applicant: TDK Corporation

Inventor： Takuya AOKI ,  Shuji HIGASHI ,  Syuji TSUKAMOTO ,  Keisuke TATSUZAKI ,  Kosuke TANAKA

IPC: H01M4/13 ,  H01M4/66 ,  H01M10/0525 ,  H01M4/70

CPC classification number: H01M4/70 ,  H01M4/13 ,  H01M4/661 ,  H01M10/0525 ,  H01M2004/021

Abstract: An electrode for power storage devices includes: a resin layer having a first surface and a second surface that is located on an opposite side from the first surface; a first electrically-conductive layer that is disposed on the first surface side of the resin layer; and a first layer of particles that is disposed on an opposite side of the first electrically-conductive layer from the resin layer. In a cross section parallel to a thickness direction of the resin layer, the first electrically-conductive layer has a first shape including a plurality of protrusions that are convexed toward the resin layer and a recess that is disposed between two adjacent protrusions among the plurality of protrusions. A distance H along the thickness direction from one of top points of the two adjacent protrusions to a bottom point of the recess is smaller than a thickness of the resin layer.

公开(公告)号：US20230261207A1

公开(公告)日：2023-08-17

申请号：US17634372

申请日：2021-03-31

Applicant: TDK Corporation

Inventor： Shuji HIGASHI ,  Takuya AOKI

IPC: H01M4/70 ,  H01M4/66 ,  H01M4/62 ,  H01M4/587 ,  H01M4/133

CPC classification number: H01M4/70 ,  H01M4/667 ,  H01M4/626 ,  H01M4/587 ,  H01M4/133 ,  H01G11/28

Abstract: An electrode for power storage devices includes: a conductor plate having a first surface which has at least one first recessed portion and a second surface located opposite to the first surface, the first surface including a first region located outside the first recessed portion; and a first composite film including a first layer which contains an insulative material, a first electrically-conductive layer and a second electrically-conductive layer, the first layer being provided between the first electrically-conductive layer and the second electrically-conductive layer, wherein the first electrically-conductive layer of the first composite film is connected with the conductor plate at the first recessed portion, and the second electrically-conductive layer of the first composite film is connected with the first electrically-conductive layer at a position overlapping the first recessed portion as viewed in a normal direction of the first region of the conductor plate.

公开(公告)号：US20230361299A1

公开(公告)日：2023-11-09

申请号：US17634352

申请日：2021-03-29

Applicant: TDK Corporation

Inventor： Takuya AOKI ,  Shuji HIGASHI ,  Miyuki YANAGIDA ,  Makoto ENDO ,  Yoshihiro KANBAYASHI

IPC: H01M4/583 ,  H01M4/66 ,  H01M10/0525

CPC classification number: H01M4/583 ,  H01M4/667 ,  H01M10/0525 ,  G01N23/2055

Abstract: An electrode for power storage devices includes: a resin layer; a conductive layer containing copper and being disposed on the resin layer; and an active material layer containing graphite and being disposed on the conductive layer, wherein when measured by an X-ray diffraction method from a surface of the active material layer, a peak intensity ratio A/B between an intensity A at a highest X-ray diffraction peak in a range where a diffraction angle is 48° or more and 53° or less and an intensity B at a highest X-ray diffraction peak in a range where a diffraction angle is 52° or more and 57° or less satisfies Expression (1):







0.3
≤

A
/
B

≤
1




­­­(1)