Ultrasonic welding of lithium onto a current collector
US9300007B1 · kind B1 · utility
1Cited by
14References
23Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 9, 2012 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | Aug 29, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An ultrasonic welding process for joining a current collector to an anode or cathode material of electrochemical cells is described. The ultrasonic welding process utilizes an ultrasonic welding frequency which may be combined with an applied force to bond dissimilar metals comprising the electrode material and the current collector. Preferably, the method is used to bond the anode material to the anode current collector. This method of attachment is suitable for either primary or secondary cells, particularly those powering implantable biomedical devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.