Title:
NICKEL LITHIUM METAL COMPOSITE OXIDE POWDER AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2016/031677
Kind Code:
A1
Abstract:
[Problem] To provide a lithium nickel cobalt aluminum oxide (LNCAO) type positive electrode active material that can offer a lithium ion battery with high per-volume discharge capacity and outstanding discharge capacity retention. [Solution] Provided is a nickel lithium metal composite oxide powder, characterized by comprising a nickel lithium metal composite oxide represented by general formula (1), LixNi1−y−zMyNzO1.7-2.2 (1), and in that the fracture strength of a secondary particle is 80 MPa or less, the density when compressed at a pressure of 192 MPa is 3.30 g/cm3 or greater, and the density when compressed at a pressure of 240 MPa is 3.46 g/cm3 or greater. Further provided is a method for manufacturing the nickel lithium metal composite oxide powder, characterized by comprising a water washing step after a sintering step for manufacturing a nickel lithium metal composite oxide powder precursor.
Inventors:
TANI HIROYUKI (JP)
RALPH OTTERSTEDT (DE)
RALPH OTTERSTEDT (DE)
Application Number:
PCT/JP2015/073407
Publication Date:
March 03, 2016
Filing Date:
August 20, 2015
Export Citation:
Assignee:
CS ENERGY MATERIALS LTD (JP)
International Classes:
H01M4/525; C01G53/00; H01M4/505
Domestic Patent References:
| WO2011105126A1 | 2011-09-01 |
Foreign References:
| JP2013065468A | 2013-04-11 | |||
| JP2007257985A | 2007-10-04 | |||
| JP2009176528A | 2009-08-06 | |||
| JP2004171961A | 2004-06-17 |
Attorney, Agent or Firm:
IZAWA MAKOTO (JP)
Jun Izawa (JP)
Jun Izawa (JP)
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