Title:
LI-NI COMPOSITE OXIDE PARTICLE POWDER AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2019/168160
Kind Code:
A1
Abstract:
The present invention provides: a positive electrode active material particle powder of a lithium nickelate composite oxide that has a high energy density and has superior charge-discharge repetition characteristics during high voltage charge; and a nonaqueous electrolyte secondary battery. The present invention pertains to a positive electrode active material particle powder comprising: as core particles X, a lithium nickelate composite oxide Li1+aNi1-b-cCobMcO2 (M represents at least one element among Mn, Al, B, Mg, Ti, Sn, Zn, and Zr, and -0.1 ≤ a ≤ 0.2, 0.05 ≤ b ≤ 0.5, and 0.01 ≤ c ≤ 0.4 are satisfied) having a layered structure; and a coating compound Y having an average thickness of 0.2-5 nm and containing at least one element among Al, Mg, Zr, Ti, and Si, the positive electrode active material particle powder being characterized in that a crystal phase containing Ni2+ ions and having a layered rock-salt structure is present as a layer between the coating compound Y and the core particles X.
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Inventors:
WATANABE HIROYASU (US)
SUN XIANG (US)
FETTERER MITCHELL (US)
SUN XIANG (US)
FETTERER MITCHELL (US)
Application Number:
PCT/JP2019/008127
Publication Date:
September 06, 2019
Filing Date:
March 01, 2019
Export Citation:
Assignee:
TODA KOGYO CORP (JP)
International Classes:
H01M4/525; C01G53/00; H01M4/36; H01M4/505; H01M10/052
Domestic Patent References:
| WO2017123836A1 | 2017-07-20 |
Foreign References:
| JP2014116111A | 2014-06-26 | |||
| JP2000133246A | 2000-05-12 | |||
| JPH10302779A | 1998-11-13 | |||
| JP2004335345A | 2004-11-25 |
Other References:
C. DELMAS ET AL., ELECTROCHIMICA ACTA, vol. 45, 1999, pages 243 - 253
J. KIM ET AL., ELECTROCHEM. AND SOLID-STATE LETT., vol. 9, 2006, pages A19 - A23
M. -J. LEE ET AL., J. MATER. CHEM. A, vol. 3, 2015, pages 13453 - 13460
J. -S. PARK ET AL., CHEM. MATER., vol. 26, 2014, pages 3128 - 3134
MOHANTY ET AL., SCIENTIFIC REPORTS, vol. 6, 2016, pages 26532 - 1,16
Y. CHO ET AL., NANO LETT., vol. 13, 2013, pages 1145 - 1152
J. MORALESS ET AL., MAT. RES. BULL., vol. 25, 1990, pages 623 - 630
H. ARAI ET AL., SOLID STATE IONICS, vol. 80, 1995, pages 261 - 269
D. P. ABRAHAM ET AL., J. ELECTROCHEM. SOC., vol. 80, 1995, pages 261 - 269
X. MENG ET AL., ADV. MATER., vol. 24, 2012, pages 3589 - 3615
A. W. WEIMER: "Particle Coating by Atomic Layer Deposition (ALD", 2004, PARTEC
See also references of EP 3761414A4
J. KIM ET AL., ELECTROCHEM. AND SOLID-STATE LETT., vol. 9, 2006, pages A19 - A23
M. -J. LEE ET AL., J. MATER. CHEM. A, vol. 3, 2015, pages 13453 - 13460
J. -S. PARK ET AL., CHEM. MATER., vol. 26, 2014, pages 3128 - 3134
MOHANTY ET AL., SCIENTIFIC REPORTS, vol. 6, 2016, pages 26532 - 1,16
Y. CHO ET AL., NANO LETT., vol. 13, 2013, pages 1145 - 1152
J. MORALESS ET AL., MAT. RES. BULL., vol. 25, 1990, pages 623 - 630
H. ARAI ET AL., SOLID STATE IONICS, vol. 80, 1995, pages 261 - 269
D. P. ABRAHAM ET AL., J. ELECTROCHEM. SOC., vol. 80, 1995, pages 261 - 269
X. MENG ET AL., ADV. MATER., vol. 24, 2012, pages 3589 - 3615
A. W. WEIMER: "Particle Coating by Atomic Layer Deposition (ALD", 2004, PARTEC
See also references of EP 3761414A4
Attorney, Agent or Firm:
OKADA, Kazuhiko (JP)
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