公开(公告)号：US10079370B2

公开(公告)日：2018-09-18

申请号：US14944846

申请日：2015-11-18

Applicant: SANYO Electric Co., Ltd.

Inventor： Ryoichi Wakimoto ,  Eiji Okutani ,  Shinichiro Yoshida

IPC: H01M2/02 ,  H01M4/66 ,  H01M10/04 ,  H01M2/26 ,  H01M2/22 ,  H01M2/30 ,  H01M2/04

CPC classification number: H01M2/0217 ,  H01M2/0237 ,  H01M2/043 ,  H01M2/22 ,  H01M2/263 ,  H01M2/30 ,  H01M4/661 ,  H01M10/0431 ,  H01M2220/20

Abstract: The thickness of a terminal connection portion of a positive electrode current collector is greater than that of a terminal connection portion of a negative electrode current collector. The terminal connection portion of the positive electrode current collector has a through-hole, and a positive electrode terminal is inserted into the through-hole and is upset on the terminal connection portion. The terminal connection portion of the negative electrode current collector has a through-hole, and a negative electrode terminal is inserted into the through-hole and is upset on the terminal connection portion. A recessed portion is formed in a lower surface of the positive electrode terminal connection portion around the through-hole, and a lower end portion of the positive electrode terminal is disposed in the recessed portion.

公开(公告)号：US20160155998A1

公开(公告)日：2016-06-02

申请号：US14944846

申请日：2015-11-18

Applicant: SANYO Electric Co., Ltd.

Inventor： Ryoichi Wakimoto ,  Eiji Okutani ,  Shinichiro Yoshida

IPC: H01M2/04 ,  H01M10/04 ,  H01M2/08 ,  H01M4/66

CPC classification number: H01M2/0217 ,  H01M2/0237 ,  H01M2/043 ,  H01M2/22 ,  H01M2/263 ,  H01M2/30 ,  H01M4/661 ,  H01M10/0431 ,  H01M2220/20

Abstract: The thickness of a terminal connection portion of a positive electrode current collector is greater than that of a terminal connection portion of a negative electrode current collector. The terminal connection portion of the positive electrode current collector has a through-hole, and a positive electrode terminal is inserted into the through-hole and is upset on the terminal connection portion. The terminal connection portion of the negative electrode current collector has a through-hole, and a negative electrode terminal is inserted into the through-hole and is upset on the terminal connection portion. A recessed portion is formed in a lower surface of the positive electrode terminal connection portion around the through-hole, and a lower end portion of the positive electrode terminal is disposed in the recessed portion.

Abstract translation: 正极集电体的端子连接部的厚度大于负极集电体的端子连接部的厚度。 正极集电体的端子连接部具有通孔，正极端子插入通孔，并在端子连接部上产生镦锻。 负极集电体的端子连接部具有通孔，负极端子插入贯通孔，并在端子连接部上产生镦锻。 在正极端子连接部的贯通孔的下表面形成有凹部，正极端子的下端部设置在凹部内。