H - Electricity – 01 – M
Patent
H - Electricity
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M
H01M 4/139 (2010.01) H01M 4/583 (2010.01) C01B 13/36 (2006.01) C01B 31/24 (2006.01) C01G 51/04 (2006.01) C01G 51/06 (2006.01) C01G 53/00 (2006.01) C01G 53/04 (2006.01) C01G 53/06 (2006.01) H01M 4/24 (2006.01)
Patent
CA 2436796
A process for producing a cobalt III encapsulated nickel hydroxide or basic nickel carbonate product including the steps of:(i) providing an ammoniacal solution including cobalt ammine complexes and nickel II ammine complexes;(ii) progressively reducing the ammonia content to sequentially precipiate the nickel as an hydroxide or basic carbonate; and(iii) further reduce the ammonia content to precipitate the majority of the cobalt as cobalt III oxide hydroxide; wherein the majority of cobalt III oxide hydroxide coats on the surface of the precipitate nickel hydroxide or basic nickel carbonate to form a coated particle.
L'invention concerne un procédé de production d'un produit d'hydroxyde de nickel ou de carbonate de nickel basique encapsulé au cobalt (III). Ce procédé consiste (i) à préparer une solution d'ammoniac contenant des complexes aminés de cobalt et des complexes aminés de nickel (II), (ii) à réduire progressivement la teneur en ammoniac afin de précipiter séquentiellement le nickel en hydroxyde ou en carbonate basique, et (iii) à réduire davantage la teneur en ammoniac en vue de précipiter la majorité du cobalt en hydroxyde d'oxyde de cobalt (III), la majorité de l'hydroxyde d'oxyde de cobalt (III) revêtant la surface de l'hydroxyde de nickel précipité ou du carbonate de nickel précipité de manière à former une particule revêtue.
Fittock John Ernest
Howison Katherine Fiona
Lucas Cheryl Christine
Qni Technology Pty Ltd
Sim & Mcburney
LandOfFree
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