Method for manufacturing lithium-containing composite oxide

Patent metadata

Field	Value
Publication number	US-8945498-B2
Application number	US-201213419620-A
Country	US
Kind code	B2
Filing date	Mar 14, 2012
Priority date	Mar 18, 2011
Publication date	Feb 3, 2015
Grant date	Feb 3, 2015

Abstract

To simply manufacture a lithium-containing oxide at lower manufacturing cost. A method for manufacturing a lithium-containing composite oxide expressed by a general formula LiMPO 4 (M is one or more of Fe (II), Mn (II), Co (II), and Ni (II)). A solution containing Li and P is formed and then is dripped in a solution containing M (M is one or more of Fe (II), Mn (II), Co (II), and Ni (II)) to form a mixed solution. By a hydrothermal method using the mixed solution, a single crystal particle of a lithium-containing composite oxide expressed by the general formula LiMPO 4 (M is one or more of Fe (II), Mn (II), Co (II), and Ni (II)) is manufactured.

First claim

What is claimed is:

1. A method for manufacturing a lithium-containing composite oxide expressed by a general formula LiMPO 4 (M is one or more of Fe (II), Mn (II), Co (II), and Ni (II)), comprising:
forming a solution containing Li and P, the solution containing Li and P being slightly alkaline;
dripping the solution containing Li and P in a solution containing M (M is one or more of Fe (II), Mn (II), Co (II), and Ni (II)) while stirring the solution containing M to form a mix…

Assignees

• Futamura Tomoya
• Semiconductor Energy Lab

Inventors

• Futamura Tomoya

Classifications

• H01M4/5825 Primary

  Electricity · mapped topic

• C01B25/45 Primary

  Chemistry & Metallurgy · mapped topic

• H01M2004/021

  Electricity · mapped topic

• H01M10/0525

  Electricity · mapped topic

• Y02E60/10

  Cross-Sectional Technologies · mapped topic