Battery cell comprising a housing covering plate having a raised central region
US10476047B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 30, 2013 |
| Grant date | Nov 12, 2019 |
| Priority date | — |
| Expiry date | Feb 24, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a battery cell, in particular a lithium-ion battery cell, wherein a cover plate (23) forming a part of a battery cell housing, which is designed as a plane sheet in a conventional manner, is modified to avoid short circuits between the poles of the battery cell due to moisture, for example. To this end, the cover plate (23) is provided with a central area (33) and an edge area (35) surrounding said central area (33). The central area (33) is located above an opening (14) to be closed off by the cover plate (23) of a container (13) forming a part of the battery cell housing, whereas the edge area (35) extends inside said opening (14). Thus, occurring moisture can drain off the platform-like raised central area (33) sideways toward a channel (37) in the edge area (35), and evaporate from there.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.