Approach for manufacturing efficient mesoporous nano-composite positive electrode LiMn1-xFexPO4 materials

Patent metadata

Field	Value
Publication number	US-9385367-B2
Application number	US-201214128433-A
Country	US
Kind code	B2
Filing date	Jun 27, 2012
Priority date	Jun 27, 2011
Publication date	Jul 5, 2016
Grant date	Jul 5, 2016

Abstract

A process of preparing mesoporous nano-composite LiMn 1-x Fe x PO 4 (0≦x≦1, e.g., x=0, 0.2, 0.5 and 0.8) particles. The process contains the steps of providing a mixture of a soft-template compound, a lithium ion-containing compound, an iron ion-containing compound, a manganese ion-containing compound, and a phosphate ion-containing compound in a solvent, removing the solvent to obtain a LiMn 1-x Fe x PO 4 precursor, and calcining the precursor followed by milling and annealing. Also disclosed is a mesoporous nano-composite LiMn 1-x Fe x PO 4 particle prepared by this process.

First claim

What is claimed is:

1. A process of preparing nano-composite LiMn 1-x Fe x PO 4 particles, the process comprising:
providing a solvent containing a soft-template compound, a lithium ion-containing compound, an iron ion-containing compound, a manganese ion-containing compound, and a phosphate ion-containing compound;
removing the solvent to obtain a LiMn 1-x Fe x PO 4 precursor;
calcining the LiMn 1-x Fe x PO 4 precursor to obtain crystalline LiMn 1-x Fe x PO 4 grains;
mi…

Assignees

• Balaya Palani
• Ramar Vishwanathan
• Univ Singapore

Inventors

• Balaya Palani
• Ramar Vishwanathan

Classifications

• Y02E60/10

  Cross-Sectional Technologies · mapped topic

• H01M2004/021

  Electricity · mapped topic

• H01M4/366 Primary

  Electricity · mapped topic

• C01B25/45

  Chemistry & Metallurgy · mapped topic

• H01M4/0471

  Electricity · mapped topic