Title:
非水系電解質二次電池用正極活物質前駆体、非水系電解質二次電池用正極活物質、非水系電解質二次電池用正極活物質前駆体の製造方法、非水系電解質二次電池用正極活物質の製造方法
Document Type and Number:
Japanese Patent JP7224754
Kind Code:
B2
Abstract:
To provide a positive electrode active material precursor for a nonaqueous electrolyte secondary battery, by which a positive electrode active material for a nonaqueous electrolyte secondary battery, having a higher density can be formed.SOLUTION: Provided is a positive electrode active material precursor for a nonaqueous electrolyte secondary battery, which comprises: a nickel cobalt manganese carbonate composite represented by the general formula, NiCoMnMCO(where x+y+z+t=1, 0.05≤x≤0.3, 0.1≤y≤0.4, 0.55≤z≤0.8 and 0≤t≤0.1, and M represents one or more additive elements selected from Mg, Ca, Al, Ti, V, Cr, Zr, Nb, Mo and W); and a functional group including hydrogen, wherein the substance amount ratio H/Me of the hydrogen H and a metal component Me included therein is less than 1.60. The positive electrode active material precursor includes secondary particles resulting from agglomeration of primary particles. The secondary particles have an average particle diameter of 15 μm or more and 45 μm or less.SELECTED DRAWING: Figure 3
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Inventors:
Uekusa Yoshiyuki
Application Number:
JP2017136523A
Publication Date:
February 20, 2023
Filing Date:
July 12, 2017
Export Citation:
Assignee:
Sumitomo Metal Mining Co., Ltd.
International Classes:
H01M4/505; C01G53/00; H01M4/525
Domestic Patent References:
| JP2016054101A | ||||
| JP2011108554A |
Foreign References:
| WO2013069454A1 | ||||
| WO2015108163A1 |
Other References:
WANG, Di et al.,RSC Advances,2016年,6,57310-57319
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Tadahiko Ito
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