Negative electrode material for secondary battery, method for preparing the same, and battery containing the same
US10847789B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 27, 2017 |
| Grant date | Nov 24, 2020 |
| Priority date | — |
| Expiry date | Dec 19, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present application relates to the field of secondary batteries and, particularly, relates to a negative electrode material for the secondary battery, a method for preparing the same, and a secondary battery containing the same. The negative electrode material includes a kernel particle, a connection carbon layer, a conductive carbon microparticle, the connection carbon layer is coated on a surface of the kernel particle, and the conductive carbon microparticle is distributed on a surface of the connection carbon layer. A high-molecular polymer is used as binder. A layer of conductive carbon microparticle is uniformly coated on a surface of the negative electrode active material, so that a stable and effective conductive network is formed in the electrode plate, thereby significantly improving a dynamic performance of the negative electrode material and providing a battery containing the negative electrode material with high rate performance and fast charging capability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.