# US 11,909,039 B2 · Nickel-containing composite hydroxide and production process thereof

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- Number: US 11,909,039 B2
- Document ID: US11909039B2
- Status: Granted
- Kind: B2
- Application number: 16/749,208
- Filed: 2020-01-22
- Published: 2020-05-21
- Granted: 2024-02-20
- Earliest claimed: 2014-10-30
- Assignees: Sumitomo Metal Mining Co., Ltd.
- Applicants: Sumitomo Metal Mining Co., Ltd.
- Inventors: Kazuomi Ryoshi; Kensaku Mori; Katsuya Kase; Yasutaka Kamata
- Web page: https://patentgrep.com/patent/US11909039B2

## CPC

- H01M 4/525: of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
- C01G 53/42: containing alkali metals, e.g. LiNiO2
- C01G 53/502: containing lithium and cobalt
- C01G 53/66: containing alkaline earth metals, e.g. SrNiO3 or SrNiO2
- C01G 53/84: Hydroxides
- H01M 10/0525: Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
- C01P 2004/03: obtained by SEM
- C01P 2004/32: Spheres
- C01P 2004/53: bimodal size distribution
- C01P 2004/61: Micrometer sized, i.e. from 1-100 micrometer
- C01P 2004/62: Submicrometer sized, i.e. from 0.1-1 micrometer
- C01P 2004/64: Nanometer sized, i.e. from 1-100 nanometer
- C01P 2006/11: Powder tap density
- C01P 2006/12: Surface area
- C01P 2006/40: Electric properties
- H01M 2004/021: {Physical characteristics, e.g. porosity, surface area}
- H01M 2004/028: {Positive electrodes}
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- C01G: COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F (metal hydrides {monoborane, diborane or addition complexes thereof} C01B6/00; salts of oxyacids of halogens C01B11/00; peroxides, salts or peroxyacids C01B15/00; thiosulfates, dithionites, polythionates C01B17/64; compounds containing selenium, or tellurium C01B19/00; binary compounds of nitrogen with metals C01B21/06; azides C01B21/08; {compounds containing nitrogen, other non-metals and metal C01B21/082}; metal amides C01B21/092; nitrites C01B21/50; {compounds of noble gases C01B23/0005}; phosphides C01B25/08; salts of oxyacids of phosphorus C01B25/16; carbides C01B32/90; compounds containing silicon C01B33/00; compounds containing boron C01B35/00; compounds having molecular sieve properties but not having base-exchange properties C01B37/00; compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites, C01B39/00; cyanides C01C3/08; salts of cyanamide C01C3/16; thiocyanates C01C3/20)
- C01P: INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

The nickel-containing composite hydroxide disclosed herein contain secondary particles, which are formed from an aggregation of numerous primary particles, which have an average particle size of the primary particles is 0.01 μm to 0.40 μm. These secondary particles have a spherical or ellipsoidal shape, an average particle size of 20 μm to 50 μm, and a BET value of 12 m2/g to 50 m2/g after being roasted in air for 2 hours at 800° C.

## Claims

### Claim 1

A nickel-containing composite hydroxide that is expressed by
the general formula: Ni1-x-yCoxAlyMt(OH)2+α, where, 0≤x≤0.20, 0≤y≤0.15, 0≤t≤0.10, 0≤α≤0.50, and M is one or more kind of element selected from among Mg, Ca, Ba, Nb, Mo, V, Ti, Zr and Y, or
the general formula: Ni1-x-zCoxMnzMt(OH)2+α, where 0≤x≤0.50, 0≤z≤0.50, x+z≤0.70, 0≤t≤0.10, 0≤α≤0.50, and M is one or more kind of element selected from among Mg, Ca, Ba, Nb, Mo, V, Ti, Zr and Y,
the nickel-containing composite hydroxide comprising secondary particles, each of the secondary particles being formed from an aggregation of a plurality of primary particles,
wherein the shape of each of the secondary particles is spherical or ellipsoidal,
wherein the average particle size of the secondary particles is 20 μm to 50 μm, and the average particle size of the primary particles is 0.01 μm to 0.40 μm, and the BET value after roasting the nickel-containing composite hydroxide in air for 2 hours at 800° C. is 12 m2/g to 50 m2/g.

### Claim 2 (depends on 1)

The nickel-containing composite hydroxide according to claim 1, wherein the average particle size of the secondary particles is 25 μm to 50 μm.