Relationship between conductivity and nickel content of LiNMCO2?

13 January 2022 1 3K Report

Actually i wonder whether NMC811 is more conductive than lets say NMC523, or vice versa. Can we say as nickel content increase, powder conductivity decreases or increases?

thanks in advance

Vadim S. Gorshkov

Reed Petersen

This reasoning is very primitive: the conductivity of a solid solution is non-additive, moreover, it does not correlate with the conductivity of the constituents. By the way, the conductivity of such compounds strongly depends on oxygen nonstoichiometry, so "almost stoichiometric" lithium cobaltate is a very poor conductor.

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