What question did this study set out to answer?

This research aims to understand how discharge voltage impacts the structural integrity and capacity of LiFe0.5Mn1.5O4.

May 9, 2026

Cutoff-Voltage-Dependent Low-Voltage Structural Evolution and Apparent Capacity Balancing in Spinel LiFe0.5Mn1.5O4

Key Points

This research aims to understand how discharge voltage impacts the structural integrity and capacity of LiFe0.5Mn1.5O4.
Examined structural changes at various discharge cutoffs including 1.9 V and 2.5 V.
Assessed capacity evolution during deep discharging conditions.
Evaluated interfacial reconstruction related to voltage levels.
At 2.5 V cutoff, structural distortion is significantly reduced compared to 1.9 V.
Limiting deep discharge enhances the apparent capacity without major structural degradation.

Abstract

Deep discharging spinel LiFe0.5Mn1.5O4 unlocks additional capacity, but typically triggers rapid structural degradation. Limiting discharge cutoff to 2.5 V mitigates severe structural distortion and interfacial reconstruction induced at 1.9 V,...

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Cite This Study

Yang et al. (Thu,) studied this question.

synapsesocial.com/papers/69fed0e2b9154b0b82877fa3 https://doi.org/https://doi.org/10.1039/d6cc01105e

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