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January 22, 2026Open Access

Thermal Decomposition Pathways and Interfacial Reactivity in Potassium-Ion Batteries: Focus on Electrolyte and Anode

SNSiddhartha NandaThe University of Texas at Austin ADAndrei DolocanWalker (United States)AYAyrton M. YanyachiWalker (United States)

Key Points

To explore the thermal decomposition pathways and interfacial reactivity in potassium-ion batteries.
Analyzed thermal safety of potassium-ion battery components.
Investigated interactions between electrolytes and anodes under heat.
Assessed reactivity changes in battery materials at elevated temperatures.
Identified key thermal decomposition pathways for potassium-ion battery components.
Reactivity profiles revealed potential thermal safety risks.
Demonstrated that specific electrolytes enhance overall battery stability.

Abstract

Potassium(K)-ion batteries are an attractive alternative to lithium-ion due to their resource abundance, graphite-anode compatibility, manufacturability, and reduced reliance on critical metals. Yet their thermal safety remains poorly defined. Here,...

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