Method for producing electrode active material for secondary battery, electrode active material for secondary battery, secondary battery, and precursor for electrode active material for secondary battery

Method for producing electrode active material for secondary battery, electrode active material for secondary battery, secondary battery, and precursor for electrode active material for secondary battery

  • CN 102,403,498 A
  • Filed: 09/08/2011
  • Published: 04/04/2012
  • Est. Priority Date: 09/10/2010
  • Status: Active Application
First Claim
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1. the manufacturing approach of electrode for secondary battery active material, this method is to comprise with LiMPO 4The manufacturing approach of the electrode for secondary battery active material that contains the lithium phosphate cpd with olivine-type skeleton of expression, in the formula, M is the element more than a kind that is selected from Mn, Fe, Co, Cu, Ni and Mg, this method comprises:

  • The 1st firing process that the mixed-powder of the initiation material of electrode for secondary battery active material is burnt till under the 1st temperature,The pulverizing process that the powder that said the 1st firing process is obtained is pulverized andThe 2nd firing process that the powder that said pulverizing process is obtained burns till under than the 2nd high temperature of said the 1st temperature,Said the 1st firing process comprises the operation that the mixed-powder of heating raw is almost completely removed until volatile ingredient.

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