Title:
POSITIVE ELECTRODE ACTIVE MATERIAL FOR ALL-SOLID LITHIUM ION BATTERY, POSITIVE ELECTRODE FOR ALL-SOLID LITHIUM ION BATTERY, AND ALL-SOLID LITHIUM ION BATTERY
Document Type and Number:
WIPO Patent Application WO/2020/026508
Kind Code:
A1
Abstract:
Provided is a positive electrode active material for an all-solid lithium ion battery, the positive electrode active material having good output characteristics and cycle characteristics when applied to an all-solid lithium ion battery. This positive electrode active material for an all-solid lithium ion battery has a core positive electrode active material having a composition represented by the following formula: LiaNibCocMdO2 (in the formula, M is at least one element selected from among Mn, V, Mg, Ti, and Al, and 1.00≤a≤1.02, 0.8≤b≤0.9, b+c+d=1), and a covering part formed on the core positive electrode active material, wherein the covering part is an oxide including Li, Nb, and a transition metal having a higher valence number than Nb.
Inventors:
KASHIMURA TOSHIHIDE (JP)
Application Number:
PCT/JP2019/011004
Publication Date:
February 06, 2020
Filing Date:
March 15, 2019
Export Citation:
Assignee:
JX NIPPON MINING & METALS CORP (JP)
International Classes:
H01M4/525; H01M4/36; H01M4/505; H01M10/052; H01M10/0562
Domestic Patent References:
| WO2014049964A1 | 2014-04-03 |
Foreign References:
| JP2016081790A | 2016-05-16 | |||
| CN102925978A | 2013-02-13 | |||
| JP2014197479A | 2014-10-16 | |||
| JP2006228733A | 2006-08-31 | |||
| JP2017084674A | 2017-05-18 | |||
| JP2009289726A | 2009-12-10 | |||
| JP2018198193A | 2018-12-13 |
Other References:
LIAO YOUHAO; SINGH PREETAM; LI WEISHAN; GOODENOUGH JOHN B ,XUE DONGFENG; ZHANG HONGJIE; LU LI; YIN SHU; LIU YINONG; BOO J H: "Comparison of Li+conductivity in Li3−xNb1−xMxO4(M=W, Mo) with that in Li3−2xNixNbO4", MATERIALS RESEARCH BULLETIN, vol. 48, no. 4, 3 December 2012 (2012-12-03), pages 1372 - 1375, XP028983120, ISSN: 0025-5408, DOI: 10.1016/j.materresbull.2012.11.110
See also references of EP 3736889A4
See also references of EP 3736889A4
Attorney, Agent or Firm:
AXIS PATENT INTERNATIONAL (JP)
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