Optimized dimensional relationships for an electrochemical cell having a coiled core
US8399116B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Dec 22, 2008 |
| Grant date | Mar 19, 2013 |
| Priority date | — |
| Expiry date | Jan 29, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrochemical storage cell having a coiled core is disclosed. The coiled core includes a cathode sheet, an anode sheet, and a separator sheet. An anode connector is connected with the anode sheet at a first end of the coiled core and a cathode connector is connected with the cathode sheet at a second, opposite end of the coiled core. The coiled core has a length Lcore and a width Wcore and each connector has a width Wconnector. The length of the coiled core Lcore, width of the coiled core Wcore, and width of each connector Wconnector have the relationship 0<(Wcore−Wconnector)/Lcore<0.37.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.