Binder composition, electrode for rechargeable battery employing the same and manufacturing method thereof
US9085691B2 · kind B2 · utility
1Cited by
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12Claims
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Key dates
| Filing date | Aug 6, 2012 |
| Grant date | Jul 21, 2015 |
| Priority date | — |
| Expiry date | Apr 25, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A binder composition has good tensile strength, and can improve the cycle life of a rechargeable battery by maintaining the conduction path of an electrode even during expansion or shrinkage of the active material. The binder composition is environmentally friendly, and can be used in existing production lines as-is. An electrode and a rechargeable battery use the binder composition. The binder composition for a rechargeable battery includes a main binder including a poly(p-phenylene terephthalamide) having at least one of a sulfonic acid group (—SO3H) or a sulfonate group (—SO3−M+) in the polymer main chain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.