Anode active material for lithium secondary battery and manufacturing method thereof
US7749655B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2005 |
| Grant date | Jul 6, 2010 |
| Priority date | — |
| Expiry date | Feb 9, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An anode active material for a lithium secondary battery, wherein a nitride compound containing silicon or metal such as copper, tin, germanium, indium and zinc is doped with second metal such as ferrum, cobalt, nickel and copper. To obtain the anode active material, a predetermined amount of metal nitride or silicon nitride is added to a second metal powder and then mixed uniformly. The mixture powder is filled into a container, and then a pressure is applied thereto to obtain a solid sample. The solid sample is heat-treated and pulverized into fine powder. The fine powder is heat-treated to obtain the metal nitride or the silicon nitride doped with the second metal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.