Non-aqueous electrolyte cell
US5965290A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 1997 |
| Grant date | Oct 12, 1999 |
| Priority date | — |
| Expiry date | Aug 13, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A non-aqueous electrolyte cell has an electrode assembly including a negative electrode strip, a positive electrode strip having an active cathode material, and a separator. The positive electrode strip and the negative electrode strip are superposed with the separator therebetween and wound in a spiral. The negative electrode strip is disposed outside the positive electrode strip and has an outermost winding, a negative electrode strip winding end, and a penultimate winding. The positive electrode strip has an outermost winding terminating at a positive electrode strip winding end. An anode current collector contacts the negative electrode strip on the penultimate winding and is radially aligned with a portion of the outermost winding of the positive electrode strip. Insulating tape is bonded to an inside surface and an outside surface of the positive electrode strip extending from the positive electrode strip winding end and has an outer portion extending one of continuously and intermittently on the outer surface of the positive electrode strip a greater distance than an inner portion of the insulating tape covering the inner side of the positive electrode strip. In an embodimen…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.