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This is a In Vitro Study study.

Synergistic Lewis Acid and Hydrogen Bonding Strategy to Enable Polymerized and Wide‐Temperature Li‐Fe‐F Conversion Solid‐State Batteries

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Innovative approach improves lithium-ion transport in solid-state batteries, suggesting enhanced performance across a wide temperature range.

Composite electrolyte achieves high ionic conductivity of 1.4 × 10 −4 S cm −1 and a lithium-ion transference number of 0.7 at room temperature.
Stable cycling of Li metal for over 5000 hours with critical current density reaching 6.4 mA cm −2 in Li‖Li cells.
The design combines Lewis acidic fluoride perovskite and hydrogen-bond-stabilized materials to enhance polymerization and transport kinetics.
Wide-temperature operability from −20 to 100 °C enables stable cycling in Li‖FeF 3 cells for 200 cycles, with capacities exceeding 500 mAh g −1.

Meng et al. (2025) studied this question.

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Innovative approach improves lithium-ion transport in solid-state batteries, suggesting enhanced performance across a wide temperature range.