Low impedance folded polymeric laminate rechargeable battery and method of making
US6444354B1 · kind B1 · utility
3Cited by
3References
20Claims
0Family size
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Inventor
Key dates
| Filing date | May 20, 1999 |
| Grant date | Sep 3, 2002 |
| Priority date | — |
| Expiry date | May 20, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Single cell laminated polymeric rechargeable battery sheets are folded in irregularly alternating directions about parallel fold axes to provide battery cell structures presenting available terminal locations requiring reduced collector element current travel distance to thereby significantly reduce battery impedance. An embodiment enables the use of equilateral cell sheets which are folded about orthogonal axes in two dimensions to yield battery cells with exceptionally high ratios of active area to collector-origin impedance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.