Title:
角形二次電池及びその製造方法
Document Type and Number:
Japanese Patent JP7115464
Kind Code:
B2
Abstract:
A rectangular secondary battery includes a rectangular casing that contains an electrode body, a sealing plate that seals an opening of the rectangular casing, a first positive electrode tab group that is composed of a plurality of positive electrode tabs, a positive electrode terminal that is attached to the sealing plate, a second positive electrode current collector that constitutes a positive electrode current collector member that is electrically connected to the first positive electrode tab group and the positive electrode terminal, and a second insulator. The second insulator includes a base portion that is disposed between the sealing plate and the second positive electrode current collector. The first positive electrode tab group is bent and connected to the second positive electrode current collector, the region being disposed along the sealing plate. A first wall portion is disposed between the first positive electrode tab group and the rectangular casing.
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Inventors:
Ryoichi Wakimoto
Hiroyuki Yamada
Hiroyuki Yamada
Application Number:
JP2019501393A
Publication Date:
August 09, 2022
Filing Date:
February 22, 2018
Export Citation:
Assignee:
Sanyo Electric Co., Ltd.
International Classes:
H01M50/586; H01M10/04; H01M50/103; H01M50/176; H01M50/184; H01M50/186; H01M50/533; H01M50/553; H01M50/591; H01M50/593; H01M50/16; H01M50/191; H01M50/536; H01M50/54; H01M50/55; H01M50/562; H01M50/566
Domestic Patent References:
| JP2015041523A | ||||
| JP2016219268A |
Foreign References:
| WO2014003185A1 | ||||
| WO2016159099A1 |
Attorney, Agent or Firm:
Yoshiaki Tokuda
Murayama Masato
Murayama Masato