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← ScienceWhich consequence results when lithium-ion batteries experience over-discharge?
A)Copper dendrites form within battery✓
B)Electrolyte oxidation rapidly escalates
C)Thermal runaway creates excess pressure
D)Decreased ionic transfer across membrane
💡 Explanation
Copper dendrite formation occurs because the dissolution of copper current collectors deposits metallic copper. This electrochemical plating reduces cell capacity rather than other failure possibilities such as excessive heat; therefore dendrites are the core failure mode.
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