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Which behavior emerges at high discharge rate during LiFePO4 electrode operation?

A)Increased particle surface heterogeneity
B)Elevated risk from thermal runaway
C)Decreased entropy change overall
D)Diminished reaction pathway branching

💡 Explanation

Under high rates, large overpotentials are present and ohmic heating is enhanced, therefore the electrode temperature rises, driving the local system outside its safe operating window resulting in thermal runaway, rather than any of the other thermal behaviors mentioned at those rates, because those alternatives do not match empirical discharge data under thermal constraint.

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