Patent · US Expired

Ternary lithium manganese spinel and process for the production thereof

US6294147A · kind A · utility

1Cited by
3References
9Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 1, 2000
Grant dateSep 25, 2001
Priority date
Expiry dateJun 1, 2020

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02E60/10
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

The invention relates to a process for the preparation of ternary lithium spinels, and to ternary lithium spinels of the general formula Li.sub.a Me.sub.b Mn.sub.2-b O.sub.c. The invention is achieved in accordance with the invention by a process which comprises dissolving a manganese salt in water, adding an oxidant, adding the mixture to an aqueous lithium hydroxide solution containing from 0.1 to 1 % by weight, based on the content of LiOH employed, of seed crystals selected from the group consisting of activated carbon, Aerosil and spine, and separating off, washing and heating the precipitate.

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