COBALT-COATED NICKEL-CONTAINING HYDROXIDE PARTICLE

• Main Authors: SATOMI NAOTOSHI, HATA MIKIO, HANAMURA NAOYA
• Format: Patent
• Language: English; Japanese
• Published: 27.12.2021
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; ELECTRICITY; INORGANIC CHEMISTRY; METALLURGY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

To provide a cobalt-coated nickel-containing hydroxide particle having excellent particle strength, thereby capable of preventing a break or crack in the particle and formation of fine powder.SOLUTION: In a cobalt-coated nickel-containing hydroxide particle, a coating layer involving cobalt oxyhydroxide is formed on a nickel-containing hydroxide particle. In the cobalt-coated nickel-containing hydroxide particle, the average size of 10 particles whose particle strength has been measured is 10.0 μm or over and 11.5 μm or under, and the cobalt-coated nickel-containing hydroxide particles have an average particle strength of 65.0 MPa or over and 100.0 MPa or under.SELECTED DRAWING: None 【課題】優れた粒子強度を有することで、粒子に割れや亀裂の発生及び微粉の発生を防止できるコバルト被覆ニッケル含有水酸化物粒子を提供する。【解決手段】ニッケル含有水酸化物粒子にオキシ水酸化コバルトを含む被覆層が形成されたコバルト被覆ニッケル含有水酸化物粒子であって、粒子強度を測定した１０個の粒子径の平均値が１０．０μｍ以上１１．５μｍ以下である前記コバルト被覆ニッケル含有水酸化物粒子の平均粒子強度が、６５．０ＭＰａ以上１００．０ＭＰａ以下であるコバルト被覆ニッケル含有水酸化物粒子。【選択図】なし