Title:
CARBON ELECTRODE MATERIAL FOR REDOX FLOW BATTERY, AND MANUFACTURING METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2019/049756
Kind Code:
A1
Abstract:
Provided is a carbon electrode material for a redox flow battery that particularly, even when using an Mn-Ti type electrolyte, while stabilizing Mn ions and suppressing a rise in cell resistance during initial charge and discharge, has excellent oxidation resistance. The electrode material of the present invention comprises a carbonaceous fiber (A), and a carbonaceous material (B) for binding the carbonaceous fiber (A), and satisfies the requirements noted hereafter. (1) When the size of a crystallite in a c axis direction found by X-ray diffraction in the carbonaceous material (B) is Lc(B), Lc(B) is 10 nm or greater; (2) when the size of the crystallite in the c axis direction found by X-ray diffraction in the carbonaceous fiber (A) is Lc(A), Lc(B)/Lc(A) is 1.0 or greater; and (3) the number of bonded oxygen atoms of the carbon electrode material surface is 1.0% or greater than the total number of carbon atoms of the carbon electrode material surface.
Inventors:
ENJOJI TOSHIKATSU (JP)
MATSUMURA TAKAHIRO (JP)
IWAHARA RYOUHEI (JP)
KOBAYASHI MASARU (JP)
TATSUTA MASAKO (JP)
DONG YONGRONG (JP)
OYA MASAYUKI (JP)
ITOU KENICHI (JP)
KAWAGOE YOSHIYASU (JP)
MATSUMURA TAKAHIRO (JP)
IWAHARA RYOUHEI (JP)
KOBAYASHI MASARU (JP)
TATSUTA MASAKO (JP)
DONG YONGRONG (JP)
OYA MASAYUKI (JP)
ITOU KENICHI (JP)
KAWAGOE YOSHIYASU (JP)
Application Number:
PCT/JP2018/032014
Publication Date:
March 14, 2019
Filing Date:
August 29, 2018
Export Citation:
Assignee:
TOYO BOSEKI (JP)
SUMITOMO ELECTRIC INDUSTRIES (JP)
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
H01M8/18; H01M4/96
Domestic Patent References:
| WO2017022564A1 | 2017-02-09 |
Foreign References:
| JP2017033757A | 2017-02-09 | |||
| JP2017033758A | 2017-02-09 | |||
| JP2006265751A | 2006-10-05 | |||
| JP2001196071A | 2001-07-19 | |||
| JP2001085028A | 2001-03-30 | |||
| JP2000357520A | 2000-12-26 | |||
| JP2017076485A | 2017-04-20 | |||
| JPS60232669A | 1985-11-19 | |||
| JPH05234612A | 1993-09-10 | |||
| JP2000357520A | 2000-12-26 | |||
| JP2017033758A | 2017-02-09 | |||
| JP2012204135A | 2012-10-22 | |||
| JPS63200467A | 1988-08-18 | |||
| JP2017172122A | 2017-09-28 | |||
| JP2017172123A | 2017-09-28 | |||
| JP2017172124A | 2017-09-28 |
Other References:
See also references of EP 3680975A4
Attorney, Agent or Firm:
UEKI, Kyuichi et al. (JP)
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