Prepn of Y-containing spherical nickel hydroxide
Title：
Prepn of Y-containing spherical nickel hydroxide
Application Number：
 02159508
Application Date：
 2002/12/30
Announcement Date：
 2003/05/14
Pub. Date：
Publication Number：
 1417877
Announcement Number：
 1228867
Grant Date：
 2005-11-23
Granted Pub. Date：
 2005-11-23
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 H01M 4/04, H01M 4/52, C01G 53/00
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Jiang Changyin, Yan Jie, Wan Chunrong
Key Words：
 Prepn, Y-containing, spherical, nickel hydroxide
Abstract：
 The present invention belongs to a preparation process of Y-containing spherical nickel hydroxide in the field of chemical material preparation. Through coprecipitation process, solid solution of hydroxide of Y and Ni is formed and prepared into Y-containing spherical nickel hydroxide; or through chemical precipitation process, one layer of ytterbium hydroxide is coated to the surface of spherical ytterbium hydroxide particles with or without ytterbium. The solid solution type or coated Y-containing spherical nickel hydroxide, when it has a molar Y/Ni ratio of 1-3%, aas obviously improved charge and discharge performance at 60 deg.c.
Claim：
Priority：
PCT：
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2008-4-17
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
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