Method for manufacturing composite particles for electrochemical element electrodes, method for manufacturing electrochemical element electrodes, and method for manufacturing electrochemical elements

Title:

Method for manufacturing composite particles for electrochemical element electrodes, method for manufacturing electrochemical element electrodes, and method for manufacturing electrochemical elements

Document Type and Number:

Japanese Patent JP6344110

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a composite particle for an electrochemical element electrode, capable of obtaining an electrode active material layer excellent in film thickness accuracy, excellent in adhesion between the obtained electrode active material layer and a collector, and further capable of being collected at a high yield.SOLUTION: Composite particles for an electrochemical element electrode can be obtained by solidifying liquid droplets of a slurry in an aqueous solution of a divalent or trivalent metal salt to form particles, the slurry containing an electrode active material, a binding resin and a water-soluble polymer, and then by separating the solidified particles from the metal salt aqueous solution to be dried. The composite particles contain 300-2,000 ppm of the divalent or trivalent metal salt.SELECTED DRAWING: None

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Inventors:

Azusa Masuda
Kayoko Kataoka

Application Number:

JP2014148982A

Publication Date:

June 20, 2018

Filing Date:

July 22, 2014

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Assignee:

Zeon Corporation

International Classes:

H01M4/36; H01G11/24; H01G11/30; H01G11/38; H01G11/86; H01M4/04; H01M4/13; H01M4/139

Domestic Patent References:

JP2008251965A
JP2015501279A
JP2012528782A

Foreign References:

WO2013060790A1
WO2013080938A1
WO2008062895A1
WO2011031470A1

Attorney, Agent or Firm:

Yoshihiro Fujimoto

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