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← ScienceWhich consequence arises when lithium-ion cathode crystal structure degrades?
A)Ionic conductivity subsequently becomes directional
B)Voltage hysteresis during cycling increases✓
C)Electronic bandgap within electrolyte narrows
D)Intercalation site energy barriers decrease
💡 Explanation
Increased voltage hysteresis occurs because decreased long-range order increases the energetic differences of lithium-ion intercalation sites during charging and discharging via the phase transition mechanism. Therefore hysteresis increases rather than bandgap shrinking which doesn't change considerably here.
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