公开(公告)号：US20180183109A1

公开(公告)日：2018-06-28

申请号：US15735939

申请日：2016-07-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TERUHISA MIURA ,  KOKI INOUE ,  AKIRA KAKINUMA ,  KATSUHISA WADASAKI ,  YASUTAKA KOGETSU ,  YUKI SUEHIRO

IPC: H01M10/0587 ,  H01M10/0525 ,  H01M2/08 ,  H01M2/26 ,  H01M2/04

CPC classification number: H01M10/0587 ,  H01M2/022 ,  H01M2/0413 ,  H01M2/046 ,  H01M2/08 ,  H01M2/26 ,  H01M2/263 ,  H01M10/0525

Abstract: A winding-type battery includes a battery case, a power generating element, a cap for blocking an opening of the battery case, and a gasket for insulating the battery case from the cap. The first electrode is connected to the cap via a first current collecting lead, and the second electrode is connected to the battery case via a second current collecting lead. A groove is formed near the opening end of the battery case. The gasket includes: an annular seal portion interposed between a rim of the cap and the region from the groove to the end; and a tubular portion that is integrated with the seal portion, and is disposed closer to the electrode group than the seal portion is. The first current collecting lead is connected to the cap through a hollow in the tubular portion.

公开(公告)号：US20180342724A1

公开(公告)日：2018-11-29

申请号：US15779091

申请日：2016-11-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： SADAYUKI OKAZAKI ,  YASUTAKA KOGETSU ,  KATSUHISA WADASAKI ,  SUGURU MATSUMURA

IPC: H01M2/26 ,  H01M2/04 ,  H01M2/30 ,  B23K20/10

CPC classification number: H01M2/26 ,  B23K20/10 ,  B23K20/106 ,  H01M2/023 ,  H01M2/04 ,  H01M2/0413 ,  H01M2/046 ,  H01M2/0486 ,  H01M2/22 ,  H01M2/30 ,  H01M10/0422 ,  H01M10/0431

Abstract: A battery includes: an electrode group including a first electrode, a second electrode, and a separator interposed between the first electrode and the second electrode; an electrolyte; a container for accommodating the electrode group and the electrolyte; a sealing member for blocking an opening in the container; and a first lead for electrically connecting the first electrode to the sealing member. The first lead has a weld region welded to the sealing member, and the weld region has at least one first bump along the longitudinal direction of the first lead. The cross section of the boundary between the weld region and a non-weld region on the first electrode side has a projecting shape corresponding to the bump.

公开(公告)号：US20180145304A1

公开(公告)日：2018-05-24

申请号：US15573571

申请日：2016-06-15

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YASUTAKA KOGETSU ,  SADAYUKI OKAZAKI ,  KATSUHISA WADASAKI ,  YUKI SUEHIRO

IPC: H01M2/26 ,  H01M10/0587 ,  H01M2/34 ,  H01M10/04

CPC classification number: H01M2/263 ,  H01M2/022 ,  H01M2/26 ,  H01M2/34 ,  H01M4/02 ,  H01M4/13 ,  H01M6/16 ,  H01M10/04 ,  H01M10/0431 ,  H01M10/0587

Abstract: A winding-type battery includes an electrode group that is formed by winding a first electrode and a second electrode via a separator and has a first end surface and a second end surface. The first electrode includes a first current collector sheet, and a first active material layer formed on its surface. The second electrode includes a second current collector sheet, and a second active material layer formed on its surface. The first current collector sheet includes, at its end disposed on the first end surface of the electrode group, a first uncoated portion having no first active material layer on either surface thereof. An edge surface of the first uncoated portion is at least partially covered with an insulating layer, and an end of the insulating layer projects more than an end of the separator on the first end surface.