Manufacturing method of batteries
US6371996B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2000 |
| Grant date | Apr 16, 2002 |
| Priority date | — |
| Expiry date | Apr 25, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4911
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This manufacturing method of batteries that comprises the steps of accommodating a battery element 4 in an envelope film body 3 of which one end side is opened to form an opening 3a for injecting an electrolytic solution; and sealing the opening 3a after the electrolytic solution 12 is injected from the opening 3a of the envelope film body 3; wherein an opening 3a side of the envelope film body 3 is made larger than a prescribed shape and dimension to use as a temporary reservoir region 3c of an injected electrolytic solution 12, after injection of a prescribed amount of the electrolytic solution 12 the region 3d of the prescribed shape and dimension being sealed and cut to form a battery. According to the method, a manufacturing method of batteries that can not only make smaller and lighter the batteries but also mass-produce batteries of high quality can be provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.