Communication-Fueling from the Electrochemistry of Halide Solid Electrolytes - Archive ouverte HAL
Article Dans Une Revue Journal of The Electrochemical Society Année : 2024

Communication-Fueling from the Electrochemistry of Halide Solid Electrolytes

Résumé

Unveiling the electrochemistry of solid-state Li 2 ZrCl 6 halide electrolyte, we reveal its triple function as an ion conductor and a supplementary reversible, and sacrificial, electron source/sink. This groundbreaking discovery leads to a remarkable long-term enhancement of the specific capacity of industry-relevant heavily loaded LiFePO 4 electrodes by several tens of percent, while significantly amplifying that of Si-based or anode-less full cells through effective compensation for side reactions. We show that these effects can potentially be tuned by adjusting the initial xLiCl-ZrCl 4 composition of the solid electrolyte, which may thus become a new and mighty parameter for balancing the two electrodes.

Dates et versions

hal-04606919 , version 1 (10-06-2024)

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Citer

Branimir Stamenkovic, Ying Shirley Meng, Philippe Moreau, Joel Gaubicher. Communication-Fueling from the Electrochemistry of Halide Solid Electrolytes. Journal of The Electrochemical Society, 2024, 171 (5), pp.050554. ⟨10.1149/1945-7111/ad4c99⟩. ⟨hal-04606919⟩
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