Title:
POSITIVE ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERIES, AND LITHIUM ION SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2017/082313
Kind Code:
A1
Abstract:
Provided are: a positive electrode active material whereby a lithium ion secondary battery can be obtained that has high discharge capacity and suppressed reduction of discharge capacity caused by repeated charge/discharge cycles; a positive electrode for lithium ion secondary batteries; and a lithium ion secondary battery. The positive electrode active material is indicated by formula aLi (Li1/3Mn2/3)O2·(1-a)LiMO2 (M indicating an element including at least Ni and Mn and 0 < a <1) and is characterized by including lithium-containing complex oxide having an integral width of no more than 1.25 deg, between peaks in a (110) plane that returns to the crystal structure of a C2/m space group, in an X-ray diffraction pattern.
Inventors:
SAKAI TOMOHIRO (JP)
Application Number:
PCT/JP2016/083277
Publication Date:
May 18, 2017
Filing Date:
November 09, 2016
Export Citation:
Assignee:
ASAHI GLASS CO LTD (JP)
International Classes:
H01M4/505; C01G53/00; H01M4/131; H01M4/36; H01M4/525
Domestic Patent References:
| WO2012111614A1 | 2012-08-23 | |||
| WO2013146287A1 | 2013-10-03 | |||
| WO2014192759A1 | 2014-12-04 | |||
| WO2014192758A1 | 2014-12-04 |
Attorney, Agent or Firm:
SENMYO, Kenji et al. (JP)
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