Common carrier for the integrated mandrel battery assembly
US9299971B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2011 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | May 19, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/5313
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system for the automated coiling of a jelly roll electrode assembly for controlled assembly and tensioning of jelly roll assembly is provided. The system includes: a shuttle, and a mandrel to which electrodes are welded; a base, mateable with the shuttle and on which the battery head assembly is mounted for welding to the mandrel; and a coiling device. The coiling device has an upper spool, a lower spool, holding a separator strip and a platform between the two holding the base. The separator strip is threaded through a passage in the mandrel separating positive and negative portions. Rotating the mandrel coils the positive electrode, the separator strip and the negative electrode to coil around the mandrel. The coiling device may include a feedback loop braking one or both spools and allowing the coiling tension to be programmed to a desired level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.