Title:
非水電解質二次電池の製造方法
Document Type and Number:
Japanese Patent JP6981344
Kind Code:
B2
Abstract:
To achieve both suppression of deterioration in cyclic characteristics and suppression of deterioration in high-temperature storage characteristics, in a nonaqueous electrolyte secondary battery containing, as a negative electrode active material, graphite and silicon oxide.SOLUTION: A method for manufacturing a nonaqueous electrolyte secondary battery includes: mixing a negative electrode active material, a binder and a solvent to obtain a granulated body; and transferring the granulated body onto a surface of a negative electrode current collector. Silicon oxide has an average particle size A of 11 μm or more and 21 μm or less. Graphite has an average particle size B of 10 μm or more and 20 μm or less. The ratio A/B of the average particle sizes of the silicon oxide and the graphite is 0.7 or more and 1.3 or less.SELECTED DRAWING: Figure 2
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Inventors:
Ryosuke Osawa
Akihiro Taniguchi
Kaoru Inoue
Akihiro Taniguchi
Kaoru Inoue
Application Number:
JP2018073034A
Publication Date:
December 15, 2021
Filing Date:
April 05, 2018
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
H01M4/1393; H01M4/36; H01M4/48
Domestic Patent References:
| JP2017054763A | ||||
| JP2016100117A | ||||
| JP2017054637A | ||||
| JP2017084567A | ||||
| JP2017068915A | ||||
| JP2014067587A | ||||
| JP2013101921A | ||||
| JP2017022018A | ||||
| JP2014102888A | ||||
| JP2013110104A | ||||
| JP2016213094A |
Foreign References:
| WO2013176068A1 | ||||
| US20170040602 |
Attorney, Agent or Firm:
Fukami patent office