Positive active material composition, and lithium secondary battery including the positive electrode including the positive active material composition, and lithium battery including the positive electrode
US10270088B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Mar 7, 2017 |
| Grant date | Apr 23, 2019 |
| Priority date | — |
| Expiry date | Jun 15, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A positive active material composition for a lithium secondary battery includes a positive active material that allows intercalation and deintercalation of lithium ions, a binder, and a conductive agent. The conductive agent includes a first conductive agent having an average particle diameter (D50) ranging from about 20 nanometers (nm) to about 40 nm and a second conductive agent having a D50 ranging from about 1 micrometer (μm) to about 5 μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.