公开(公告)号：US10439191B2

公开(公告)日：2019-10-08

申请号：US15642866

申请日：2017-07-06

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Seiji Kumazawa ,  Takayuki Ashida ,  Shinya Mori ,  Hiroaki Takano

IPC: H01M2/20 ,  H01M2/02 ,  C22C9/01 ,  B23K26/282 ,  B23K26/323 ,  B23K9/23 ,  B23K35/28 ,  B23K35/30 ,  B23K11/20 ,  B23K35/02 ,  B32B15/01 ,  B23K26/244 ,  B23K101/36 ,  B23K103/18

Abstract: A welded metal component, includes: a first component; a second component that is stacked on the first component and that is made of a material different from the first component; and at least one welded part that passes through the second component so as to reach the first component, wherein a proportion of an intermetallic compound present in the at least one welded part is from 15% to 60%, and the intermetallic compound includes a metal element that constitutes the first component, and a metal element that constitutes the second component. Further disclosed is a battery comprising the above welded metal component, wherein the second component serves as a bus bar, and the first component serves as an electrode for the battery.

公开(公告)号：US11428251B2

公开(公告)日：2022-08-30

申请号：US15754294

申请日：2016-09-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Seiji Kumazawa ,  Tomomi Tanaka ,  Daisuke Shioga ,  Takayuki Ashida

IPC: F16B5/08 ,  B23K26/244 ,  B23K26/323

Abstract: Weld structures of metal members include: a first member; and a second member that is layered together with the first member, wherein at least one first solidified part that extends from a surface of the first member to the inside of the first member, at least one second solidified part that is formed by a molten area extending through the first member and the second member, and at least one third solidified member that is formed by a molten area extending through the first member and the second member are provided, and the third solidified part is located closer to a non-layered surface of the second member than the second member is.

公开(公告)号：US11185947B2

公开(公告)日：2021-11-30

申请号：US16318959

申请日：2018-06-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Seiji Kumazawa ,  Takayuki Ashida

IPC: B23K26/00 ,  B23K26/22 ,  B23K26/24 ,  H01M50/528

Abstract: A welding structure for a metal member includes a first member containing a metal member, a second member containing a metal member, a first solidifying portion, a second solidifying portion, and a third solidifying portion. The first solidifying portion is present from a first surface to a second surface of the first member. The second solidifying portion has a first end that is present in the second member and a second end that is connected to the first solidifying portion. The third solidifying portion has a first end that is present in the second member and a second end that is connected to the first solidifying portion. The third solidifying portion is shorter than the second solidifying portion. The second solidifying portion and the third solidifying portion are separated from each other in the second member.

公开(公告)号：US11161197B2

公开(公告)日：2021-11-02

申请号：US16245159

申请日：2019-01-10

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takayuki Hirose ,  Yasushi Taniguchi ,  Seiji Kumazawa ,  Takayuki Ashida

IPC: B23K20/10 ,  B29C65/08 ,  B29C65/00 ,  B32B3/02 ,  B32B15/01 ,  H01M4/13 ,  H01M4/02 ,  B29L31/34 ,  B29L9/00

Abstract: A highly reliable joined structure and joining method by suppressing peeling at joined portions in the joined structure formed by joining metals together is provided. A joined structure includes a plurality of metals laminated and joined together. The plurality of metals are shaped to include a plurality of convex portions arranged on a surface positioned in a lamination direction, and flat portions arranged between the plural convex portions. Tip ends of the plurality of convex portions are formed as curved surfaces.