US 11,670,765 B2
Nickel manganese composite hydroxide, production method for nickel manganese composite hydroxide, positive electrode active material for non-aqueous electrolyte secondary battery, production method for positive electrode active material for non-aqueous electrolyte secondary battery, and non-aqueous electrolyte secondary battery
Haruki Kaneda, Niihama (JP); Yuki Koshika, Niihama (JP); and Takaaki Ando, Niihama (JP)
Assigned to SUMITOMO METAL MINING CO., LTD., Tokyo (JP)
Appl. No. 16/320,670
Filed by SUMITOMO METAL MINING CO., LTD., Tokyo (JP)
PCT Filed Jul. 28, 2017, PCT No. PCT/JP2017/027539
§ 371(c)(1), (2) Date Apr. 17, 2019,
PCT Pub. No. WO2018/021556, PCT Pub. Date Feb. 1, 2018.
Claims priority of application No. JP2016-150506 (JP), filed on Jul. 29, 2016.
Prior Publication US 2019/0296348 A1, Sep. 26, 2019
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 4/505 (2010.01); C01G 53/00 (2006.01); H01M 4/525 (2010.01); H01M 10/0525 (2010.01); C01G 53/04 (2006.01); H01M 4/02 (2006.01)
CPC H01M 4/505 (2013.01) [C01G 53/006 (2013.01); C01G 53/04 (2013.01); H01M 4/525 (2013.01); H01M 10/0525 (2013.01); C01P 2002/52 (2013.01); C01P 2002/74 (2013.01); C01P 2004/50 (2013.01); C01P 2004/51 (2013.01); C01P 2006/11 (2013.01); C01P 2006/12 (2013.01); C01P 2006/14 (2013.01); C01P 2006/40 (2013.01); H01M 2004/028 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A nickel-manganese composite hydroxide represented by General Formula (1): NixMnyMz(OH)2+α (in Formula (1), M is at least one element selected from Co, Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, Fe, and W; x satisfies 0.1≤x≤0.9, y satisfies 0.05≤y≤0.8, z satisfies 0≤z≤0.8, and x+y+z=1.0; and α satisfies 0≤α≤0.4) and containing a secondary particle formed of a plurality of flocculated primary particles, wherein
the nickel-manganese composite hydroxide has a half width of a diffraction peak of a (001) plane obtained by X-ray diffraction measurement of at least 0.35° and up to 0.50° and has a degree of sparsity/density represented by [(a void area within a cross section area of the secondary particle/the cross section area of the secondary particle)×100](%) within a range of greater than 10% and up to 22%.