Title:
MANUFACTURING METHOD OF NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
Document Type and Number:
Japanese Patent JP2020087569
Kind Code:
A
Abstract:
To provide a method capable of manufacturing a nonaqueous electrolyte secondary battery excellent in low temperature input characteristics.SOLUTION: A manufacturing method of nonaqueous electrolyte secondary battery includes a coating step of coating a negative electrode collector with aqueous paste containing a negative electrode active material, a binding material and a thickner, a desiccation step of manufacturing a negative electrode including a negative electrode active material layer by desiccating the applied aqueous paste, and an assembly step of assembling a nonaqueous electrolyte secondary battery by using the manufactured negative electrode. The thickner contains carboxyl group. In the desiccation step, desiccation of the aqueous paste is carried out at a temperature of 160°C-210°C. At least after desiccation operation of the desiccation step to the assembly step is carried out under a circumstance of dew-point of 0°C or less.SELECTED DRAWING: Figure 2
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Inventors:
TAMAKI TAKUMI
KAWAMOTO YUTA
KAWAMOTO YUTA
Application Number:
JP2018216652A
Publication Date:
June 04, 2020
Filing Date:
November 19, 2018
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
H01M10/058; H01G11/86; H01M4/13; H01M4/139; H01M4/62
Domestic Patent References:
| JP2017033773A | 2017-02-09 | |||
| JP2014049390A | 2014-03-17 |
Foreign References:
| WO2015037367A1 | 2015-03-19 |
Attorney, Agent or Firm:
Makoto Abe
Michiko Oi
Koji Amano
Michiko Oi
Koji Amano