Electrode active material, electrode and secondary battery including the same, and method of preparing the electrode active material
US10615409B2 · kind B2 · utility
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28Claims
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Key dates
| Filing date | May 23, 2016 |
| Grant date | Apr 7, 2020 |
| Priority date | — |
| Expiry date | Jun 20, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A secondary particle-type electrode active material including: at least one pore; and a shell surrounding the at least one pore, wherein the shell includes a first layer and a second layer, the first layer including a first carbonaceous material, and the second layer including a composite and disposed on the first layer, wherein the composite includes a silicon material and a second carbonaceous material. Also, an electrode and a secondary battery include the electrode active material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.