Title:
A manufacturing method of a rechargeable battery
Document Type and Number:
Japanese Patent JP6048161
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for manufacturing a secondary battery capable of manufacturing an electrode mixture paste having excellent properties even when an electrode active material having a tap density of 1.0 g/cmor more is used.SOLUTION: The method for manufacturing a secondary battery involves manufacturing an electrode mixture paste by mixing and kneading a powder and a solvent used when creating an electrode mixture paste while varying the amount of the solvent (preparatory mixing), and by fully mixing and kneading the same at a mixture ratio at which mixing torque indicates a peak value. When the tap density of an active material included in a powder component is 1.0 g/cmor more, a solvent of the same component as a solvent component used when creating the electrode mixture paste is mixed, before preparatory mixing, into the active material used in preparatory mixing for a time predetermined according to the tap density, by which a predetermined amount of solvent is included (wetting process).
Inventors:
Ryosuke Osawa
Hiroyuki Hashimoto
Hiroyuki Hashimoto
Application Number:
JP2013010865A
Publication Date:
December 21, 2016
Filing Date:
January 24, 2013
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
H01M4/04; H01M4/1393
Domestic Patent References:
| JP2004303572A | ||||
| JP2011014262A | ||||
| JP2003115295A |
Attorney, Agent or Firm:
Patent Business Corporation Cosmos Patent Office