Title:
SLURRY FOR POSITIVE ELECTRODE OF LITHIUM-ION SECONDARY BATTERY, POSITIVE ELECTRODE FOR LITHIUM-ION SECONDARY BATTERY OBTAINED USING SLURRY FOR POSITIVE ELECTRODE OF LITHIUM-ION SECONDARY BATTERY AND PRODUCTION METHOD THEREFOR, AND LITHIUM-ION SECONDARY BATTERY PROVIDED WITH POSITIVE ELECTRODE FOR LITHIUM-ION SECONDARY BATTERY AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2017/026345
Kind Code:
A1
Abstract:
Provided is a slurry for a positive electrode of a lithium-ion secondary battery, wherein said slurry increases the dispersibility of a positive electrode active material, improves the coatability on a current collector of slurry for a positive electrode, and makes it possible to obtain a lithium-ion secondary battery having a low initial resistance value. Also provided are: a positive electrode for a lithium-ion secondary battery, said electrode being obtained using the slurry for a positive electrode of a lithium-ion secondary battery, and a production method for said electrode; and a lithium-ion secondary battery provided with the positive electrode for a lithium-ion secondary battery, and a production method for said battery. The slurry for a positive electrode of a lithium-ion secondary battery is characterized by comprising a positive electrode active material (A), a conductive auxiliary agent (B), a resin binder (C), a viscosity-improvement dispersion agent (D), and water (E), wherein the viscosity-improvement dispersion agent (D) comprises a polyalkylene oxide having a phenyl group in a side chain thereof.
Inventors:
AOKI YUSUKE (JP)
HANASAKI MITSURU (JP)
HANASAKI MITSURU (JP)
Application Number:
PCT/JP2016/072780
Publication Date:
February 16, 2017
Filing Date:
August 03, 2016
Export Citation:
Assignee:
SHOWA DENKO KK (JP)
International Classes:
H01M4/62; C08F220/04; C08F220/28; C08L31/06; C08L71/02; H01M4/13; H01M4/139; H01M10/052; H01M10/058
Domestic Patent References:
| WO2014115802A1 | 2014-07-31 | |||
| WO2013114849A1 | 2013-08-08 |
Foreign References:
| JP2014154360A | 2014-08-25 | |||
| JP2014143078A | 2014-08-07 | |||
| JPS52134642A | 1977-11-11 |
Other References:
See also references of EP 3336940A4
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
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