Prismatic secondary battery and assembled battery using the same
US10644301B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 16, 2019 |
| Grant date | May 5, 2020 |
| Priority date | — |
| Expiry date | Apr 16, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrode body including a positive electrode plate and a negative electrode plate include a positive electrode tab portion at an end portion on a sealing plate side, a positive electrode collector electrically connected to the positive electrode plate include a collector body portion, a collector extension portion, a collector connection, and a collector connection portion. A pressure-sensitive current breaking mechanism includes a conductive member having an opening portion on an electrode body side, a deformation plate that seals the opening portion, and a collector body portion disposed on the electrode body side of the deformation plate and connected to the deformation plate. The collector extension portion is offset from the collector body portion and is disposed on the sealing plate side with respect to the collector body portion. Positive electrode tab portion is connected to the collector connection bent back at an end portion of the collector extension portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.