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Abstract
High-power Lithium-ion batteries (LIBs) rely on highly ionically and electronically conductive cathode active materials (CAMs). While oxospinels meet these criteria and are therefore widely employed in state-of-the-art LIBs, we demonstrate that halospinels offer greatly enhanced transport properties and enable the incorporation of earth-abundant transition metals such as iron. Using spinel type Li2-xFeCl4 (02 mA h cm 2) at practical current densities (0.5 mA cm 2) over 200 cycles. Our findings position LFC as a commercially viable CAM, paving the way for cost-effective, high-performance ASSBs.
Supplementary materials
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Supplementary Information
Description
Experimental Methods, Supplementary Text, Figures S1 to S13, Tables S1 to S14. All data are available in the main text or the supplementary materials, and available from the corresponding author upon reasonable request.
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