Positive-electrode materials: methods for their preparation and use in lithium secondary batteries
US10090525B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 13, 2017 |
| Grant date | Oct 2, 2018 |
| Priority date | — |
| Expiry date | Jan 13, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A positive-electrode material for a lithium secondary battery. The material includes a lithium oxide compound or a complex oxide as reactive substance. The material also includes at least one type of carbon material, and optionally a binder. A first type of carbon material is provided as a coating on the reactive substance particles surface. A second type of carbon material is carbon black. And a third type of carbon material is a fibrous carbon material provided as a mixture of at least two types of fibrous carbon material different in fiber diameter and/or fiber length. Also, a method for preparing the material as well as lithium secondary batteries including the material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.