Gas phase deposition of battery separators
US9647259B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2013 |
| Grant date | May 9, 2017 |
| Priority date | — |
| Expiry date | Dec 5, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Methods of making a battery component are provided. The method comprises gas phase depositing a composition onto an electrode, the composition comprising a first component and a second component, and removing at least a portion of the second component to form a separator comprising a porous polymer film on the electrode. The first component is selected from the group consisting of polymers, dimers and monomers. In some embodiments, the second component is selected from the group consisting of polymers, dimers and monomers and is different from the first component. The first component and the second component each form separate polymer phases and together form a layer. In some embodiments, the second component is selected from the group consisting of by-products and remaining portions of the first component from the forming the first polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.