公开(公告)号：US12191532B2

公开(公告)日：2025-01-07

申请号：US17752173

申请日：2022-05-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yoshihiro Miyoshi ,  Yoshinori Sakai

IPC: H01M50/538 ,  H01M4/02 ,  H01M4/04 ,  H01M10/04 ,  H01M50/534 ,  H01M50/536

Abstract: This electrode plate has a band-shaped core, and an active material layer formed on both surfaces of the core, and a current collector lead is connected to an exposed part at which the core is exposed. The exposed part is placed on the longitudinal direction portion of the core, and an identification display part that can specify the history of the manufacturing process is formed at a position different from the current collector lead in the exposed part. In the core, the active material layer is placed at a position on the opposite side to the identification display part in the core thickness direction.

公开(公告)号：US20220285798A1

公开(公告)日：2022-09-08

申请号：US17752173

申请日：2022-05-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yoshihiro Miyoshi ,  Yoshinori Sakai

IPC: H01M50/538 ,  H01M4/04 ,  H01M10/04

Abstract: This electrode plate has a band-shaped core, and an active material layer formed on both surfaces of the core, and a current collector lead is connected to an exposed part at which the core is exposed. The exposed part is placed on the longitudinal direction portion of the core, and an identification display part that can specify the history of the manufacturing process is formed at a position different from the current collector lead in the exposed part. In the core, the active material layer is placed at a position on the opposite side to the identification display part in the core thickness direction.

公开(公告)号：US12128466B2

公开(公告)日：2024-10-29

申请号：US17289212

申请日：2019-10-25

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Fumihiro Terasawa ,  Yoshihiro Miyoshi ,  Naoyuki Koide

IPC: B21B37/38 ,  B21B29/00 ,  B21B38/04 ,  B21C51/00 ,  B30B3/00 ,  H01M4/04 ,  H01M4/139

CPC classification number: B21B37/38 ,  B21B29/00 ,  B21B38/04 ,  B21C51/00 ,  B30B3/00 ,  H01M4/0435 ,  H01M4/139 ,  B21B2269/04

Abstract: In a roll press device, a thickness meter is provided on the exit side of first and second pressure rollers and detects the thickness of an electrode plate of a secondary battery at three or more points in the width direction of the electrode plate. From thickness measurement values at the three or more points and a thickness target value, a calculation unit calculates three feature amounts: the deviation between a thickness measurement value at the central point among the three or more points and the thickness target value, the quadratic component of the thickness profile of the electrode plate, and the linear component of the thickness profile of the electrode plate, and adaptively changes the respective pressure setting values of the first press mechanism, the second press mechanism, the first bend mechanism, and the second bend mechanism based on the three feature amounts.

公开(公告)号：US20210005868A1

公开(公告)日：2021-01-07

申请号：US17040762

申请日：2019-02-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yoshihiro Miyoshi ,  Yoshinori Sakai

IPC: H01M2/26 ,  H01M10/04 ,  H01M4/04

Abstract: This electrode plate has a band-shaped core, and an active material layer formed on both surfaces of the core, and a current collector lead is connected to an exposed part at which the core is exposed. The exposed part is placed on the longitudinal direction portion of the core, and an identification display part that can specify the history of the manufacturing process is formed at a position different from the current collector lead in the exposed part. In the core, the active material layer is placed at a position on the opposite side to the identification display part in the core thickness direction.