Title:
POSITIVE ELECTRODE MATERIAL AND MANUFACTURING METHOD THEREFOR, BATTERY USING POSITIVE ELECTRODE MATERIAL AND MANUFACTURING METHOD THEREFOR, AND ELECTRONIC EQUIPMENT USING BATTERY
Document Type and Number:
WIPO Patent Application WO/2019/159262
Kind Code:
A1
Abstract:
This positive electrode material has, in X-ray diffraction (2θ=5°-90°) that uses radiated light having a wavelength 1Å, diffraction peaks located at 2θ = 13.1°±0.2°, 14.0°±0.2°, and 18.4°±0.2°, and has a monoclinic crystal structure belonging to a space group P21/c. The positive electrode material is represented by composition formula Li2-2xCo1+xP2O7 (-0.2≤x≤0.2).
Inventors:
KURITA TOMOCHIKA (JP)
HOMMA KENJI (JP)
HIDA MASAHARU (JP)
IWATA JIYUNICHI (JP)
HOMMA KENJI (JP)
HIDA MASAHARU (JP)
IWATA JIYUNICHI (JP)
Application Number:
PCT/JP2018/005102
Publication Date:
August 22, 2019
Filing Date:
February 14, 2018
Export Citation:
Assignee:
FUJITSU LTD (JP)
International Classes:
H01M4/58
Domestic Patent References:
| WO2013035572A1 | 2013-03-14 | |||
| WO2014181436A1 | 2014-11-13 | |||
| WO2011068255A1 | 2011-06-09 | |||
| WO2015056412A1 | 2015-04-23 |
Foreign References:
| JP2016038996A | 2016-03-22 |
Other References:
NISHIMURA, SHIN-ICHI ET AL.: "New Lithium Iron Pyrophosphate as 3.5V Class Cathode Material for Lithium Ion Battery", J. AM. CHEM. SOC., vol. 132, no. 39, 6 October 2010 (2010-10-06), pages 13596 - 13597, XP055634930
KIM, H. ET AL., CHEMISTRY OF MATERIALS, vol. 23, no. 17, 2011, pages 3930 - 3937
See also references of EP 3754766A4
KIM, H. ET AL., CHEMISTRY OF MATERIALS, vol. 23, no. 17, 2011, pages 3930 - 3937
See also references of EP 3754766A4
Attorney, Agent or Firm:
HIROTA, Koichi (JP)
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