Method of making an electrolyte activatable lithium-ion rechargeable battery cell
US5456000A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 1995 |
| Grant date | Oct 10, 1995 |
| Priority date | — |
| Expiry date | Jan 5, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49114
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Li-ion rechargeable battery cell electrode and electrolyte/separator elements formulated as layers of plasticized polymeric matrix compositions are laminated to form a unitary battery cell structure. The structure may be stored indefinitely, since it is essentially devoid of electrolyte solution which typically comprises a moisture-sensitive lithium salt. Prior to the battery's being put into service, at least a portion of the compatible polymeric composition plasticizer is displaced by contact with a lithium salt electrolyte solution or is removed by extraction with a selective solvent and replaced with the electrolyte solution by simple imbibition. The battery thus activated may then be charged and recharged in the usual manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.