Coated lithium-nickel composite oxide particles, and method for producing coated lithium-nickel composite oxide particles
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United States of America Patent
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Dec 7, 2021
Grant Date -
Nov 21, 2019
app pub date -
Aug 1, 2019
filing date -
May 30, 2014
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Abstract
Provided are excellent coated lithium-nickel composite oxide particles with which it is possible, due to the high environmental stability thereof, to minimize the incidence of impurities owing to absorption of moisture and carbon dioxide gas, said particles having high adhesiveness such that the coating layer does not easily delaminate, and having lithium-ion conductivity. The coated lithium-nickel composite oxide particles, in which an electroconductive polymer is cross-linked to the lithium-nickel composite oxide particles by a three-dimensional structure, are electrically and ionically conductive, and the compound is capable of suppressing the transmission of moisture and carbon dioxide. It is therefore possible to provide coated lithium-nickel composite oxide particles for a lithium-ion cell positive-electrode active substance that is excellent for use in a lithium-ion cell.
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