Method of providing an electrochemical cell casing having an open-ended main body portion of grade 5 or 23 titanium closed by upper and lower lids of grade 1 or 2 titanium
US10916740B2 · kind B2 · utility
0Cited by
8References
16Claims
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Key dates
| Filing date | Oct 5, 2018 |
| Grant date | Feb 9, 2021 |
| Priority date | — |
| Expiry date | Jul 20, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4911
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrochemical cell, preferably a secondary, rechargeable cell, including a casing comprised of a main body portion having opposed lower and upper open ends closed by respective lower and upper lids is described. The main body portion is composed of titanium Grades 5 or 23 having a relatively high electrical resistivity material while the lower and upper lids are composed of titanium Grades 1 or 2. The lids are preferably joined to the main body portion using laser welding. The combination of these differing titanium alloys provides a cell casing that effectively retards eddy current induced heating during cell recharging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.