Title:
リチウム含有複合酸化物の製造方法、正極活物質、リチウムイオン二次電池用正極およびリチウムイオン二次電池
Document Type and Number:
Japanese Patent JP6574098
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide: a method for producing a lithium-containing composite oxide capable of obtaining a lithium ion secondary battery excellent in discharge capacity and cycle characteristics; a cathode active material; a positive electrode for a lithium ion secondary battery containing a lithium-containing composite oxide; and a lithium ion secondary battery.SOLUTION: There is provided a method for producing a lithium-containing composite oxide represented by LiNiCoMnMO(x:1.1 to 1.7, a:0.15 to 0.55, b:0 to 0.33, c:0.33 to 0.85, d:0 to 0.05, a+b+c+d=1, M:other metal elements, y:molar number of oxygen), which comprises: (b) a step of mixing a hydroxide containing Ni and Mn as essential components and a lithium compound, followed by pulverizing in a liquid medium using a pulverizing medium to obtain a slurry containing a pulverized product having a Dof 0.01 to 1 μm; (c) a step of drying the slurry to obtain a granulated body; and (d) a step of calcining the granulated body at 800 to 1100°C to obtain a lithium-containing composite oxide.SELECTED DRAWING: Figure 2
Inventors:
Tomohiro Sakai
Application Number:
JP2015079039A
Publication Date:
September 11, 2019
Filing Date:
April 08, 2015
Export Citation:
Assignee:
Sumitomo Chemical Co., Ltd.
International Classes:
C01G53/00; H01M4/505; H01M4/525
Domestic Patent References:
| JP2007095571A | ||||
| JP2012253009A |
Foreign References:
| WO2011083861A1 | ||||
| WO2014192758A1 | ||||
| WO2008091028A1 |
Attorney, Agent or Firm:
Sumio Tanai
Akio Sato
Shingo Suzuki
Hiroyuki Kato
Akio Sato
Shingo Suzuki
Hiroyuki Kato