Method of manufacturing high volumetric density electrodes from self-aligning fiber powders
US10199633B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Dec 9, 2015 |
| Grant date | Feb 5, 2019 |
| Priority date | — |
| Expiry date | May 1, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrode and a related method of manufacture are provided. The electrode includes a self-aligning active material having short fiber powders with a cylindrical morphology to increase the packing density from 0.74 to nearly 0.91. The short fiber powders self-align during a slurring coating process as a result of shear forces between a die and a foil. The resulting coating includes parallel short fibers in a closed packed arrangement, providing an increased volumetric capacity of at least approximately 17%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.