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Title:
POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING SAID POSITIVE ELECTRODE ACTIVE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2019/009160
Kind Code:
A1
Abstract:
Provided is a positive electrode active material for a non-aqueous electrolyte secondary battery, wherein, when the positive electrode active material is used in a positive electrode of a battery, the negative electrode resistance is reduced without a change in the composition ratio between the positive and negative electrodes, and a battery having excellent power characteristics can be obtained. The positive electrode active material for a non-aqueous electrolyte secondary battery comprises a lithium metal composite oxide, wherein the lithium metal composite oxide is represented by the general formula LiaNi1-x-y-zCoxDyEzO2 (in the formula, 0.05≤x≤0.35, 0≤y≤0.35, 0.002≤z≤0.05, 1.00≤a≤1.30, D is at least one element selected from among Mn, V, Mo, Nb, Ti, and W, and E is an element that is alloyed with lithium at a nobler potential than the potential at which ions of element E are reduced), and is composed of primary particles and secondary particles formed by aggregation of the primary particles, an element E-containing oxide being present on the surfaces of either the primary particles or the secondary particles.

Inventors:
TOMA TAKAHIRO (JP)
FUKUI ATSUSHI (JP)
AIDA TAIRA (JP)
KOMUKAI TETSUFUMI (JP)
Application Number:
PCT/JP2018/024417
Publication Date:
January 10, 2019
Filing Date:
June 27, 2018
Export Citation:
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Assignee:
SUMITOMO METAL MINING CO (JP)
International Classes:
H01M4/525; C01G53/00; H01M4/36; H01M4/505
Foreign References:
JP2012230898A2012-11-22
JP2014528891A2014-10-30
JP2012221855A2012-11-12
JP2016031881A2016-03-07
JP2018106892A2018-07-05
JP2017139168A2017-08-10
Attorney, Agent or Firm:
KOIKE Akira et al. (JP)
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