Separators for electrochemical cells
US8883354B2 · kind B2 · utility
19Cited by
75References
15Claims
0Family size
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Key dates
| Filing date | Jan 12, 2007 |
| Grant date | Nov 11, 2014 |
| Priority date | — |
| Expiry date | Aug 10, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49115
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Provided are separators for use in an electrochemical cell comprising (a) an inorganic oxide and (b) an organic polymer, wherein the inorganic oxide comprises organic substituents. Preferably, the inorganic oxide comprises an hydrated aluminum oxide of the formula Al2O3.xH2O, wherein x is less than 1.0, and wherein the hydrated aluminum oxide comprises organic substituents, preferably comprising a reaction product of a multifunctional monomer and/or organic carbonate with an aluminum oxide, such as pseudo-boehmite and an aluminum oxide. Also provided are electrochemical cells comprising such separators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.