Water-soluble polyamic acid, method of preparing the same, binder composition for lithium battery including the same, and lithium battery manufactured using the binder composition
US10186709B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | Nov 21, 2016 |
| Grant date | Jan 22, 2019 |
| Priority date | — |
| Expiry date | Apr 15, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A water-soluble partially lithiated polyamic acid having an acid equivalent of less than 300 grams per equivalent and a degree of lithium ion substitution of from about 0.2 equivalents to about 1.0 equivalent with respect to carboxylic acid groups, which is a product of a polyamic acid and lithium hydroxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.