COATED NICKEL HYDROXIDE POWDER FOR ALKALI SECONDARY BATTERY POSITIVE ELECTRODE ACTIVE MATERIAL AND METHOD OF PRODUCING SAME

COATED NICKEL HYDROXIDE POWDER FOR ALKALI SECONDARY BATTERY POSITIVE ELECTRODE ACTIVE MATERIAL AND METHOD OF PRODUCING SAME

A coated nickel hydroxide powder that has improved dispersibility in a paste to inhibit agglomeration and can be densely packed in a three-dimensional metal porous body in the preparation of a positive electrode for alkaline secondary battery includes nickel hydroxide particles and a coating layer m...

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Hauptverfasser: NIHEI TOMOMICHI, OKATO KAZUAKI, SASAOKA HIDEO
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Sprache:eng
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BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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creator NIHEI TOMOMICHI
OKATO KAZUAKI
SASAOKA HIDEO
description A coated nickel hydroxide powder that has improved dispersibility in a paste to inhibit agglomeration and can be densely packed in a three-dimensional metal porous body in the preparation of a positive electrode for alkaline secondary battery includes nickel hydroxide particles and a coating layer made of a cobalt compound and formed on a surface of the nickel hydroxide particles, wherein when 10 mL of water is added to 10 g of the coated nickel hydroxide powder to prepare a suspension, a total amount of eluted ions except for oxonium ions, hydroxide ions, and carbonate ions in the suspension is 6.5 mmol/L or less. The coated nickel hydroxide powder obtained through a crystallization step, a coating step, and a washing step is dried in a drying step in a decarbonated atmosphere whose partial pressure of a carbon-containing gas is 15 Pa or less.
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subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
title COATED NICKEL HYDROXIDE POWDER FOR ALKALI SECONDARY BATTERY POSITIVE ELECTRODE ACTIVE MATERIAL AND METHOD OF PRODUCING SAME
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