Patent · US Expired

Method for preparing composite materials comprising an electrode active compound and an electronic conductor such as carbon in particular for a lithium battery

US7776234B2 · kind B2 · utility

3Cited by
4References
27Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 26, 2005
Grant dateAug 17, 2010
Priority date
Expiry dateJul 15, 2025

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02E60/10
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

The present invention relates to a process for preparing composite materials comprising an electrode active compound of formula AaDdMmZzOoNnFf, such as an alkali metal ion, such as a lithium ion, insertion compound, and an electronically conducting compound, such as carbon, in which a homogeneous mixed precursor containing all the elements A, D, M, Z, O, N and F forming the electrode active compound and also one or more organic and/or organometallic compounds are thermally decomposed, in a short period of time, so as to obtain the composite material. These composite materials in particular find their application in devices containing said compounds and/or active materials, such as electrochemical devices and batteries, in particular lithium batteries.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.