Carbon shell design curbs shuttle effect in thermal battery cathodes

Transition metal fluorides are widely regarded as promising cathode materials because of their high theoretical voltages and excellent thermal stability. However, in real batteries, these materials tend to dissolve and migrate within the electrolyte during operation—a phenomenon often called the "shuttle effect"—causing active material loss, declining capacity, and long-term structural damage.

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Carbon shell design curbs shuttle effect in thermal battery cathodes

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