Method of manufacturing positive electrode material for electrical storage device
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United States of America Patent
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Sep 1, 2020
Grant Date -
Nov 30, 2017
app pub date -
Nov 5, 2015
filing date -
Nov 26, 2014
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Abstract
Provided is a method of manufacturing a positive electrode material for an electrical storage device, the positive electrode material for an electrical storage device including a positive electrode active material represented toy the general formula Nax(Fe1−aMa)yP2Oz, where M represents at least one kind of transition metal element selected from the group consisting of Cr, Mn, Co, and Ni, x satisfies 1.2≤x≤2.8, y satisfies 0.95≤y≤1.6, a satisfies 0≤a≤0.9, and z satisfies 7≤z≤8, the method including a step of firing an oxide material serving as a raw material at from 400° C. to 610° C. in a reducing atmosphere.
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