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Review
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Hai Yang et al.
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Pengcheng Shi et al.
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Tianjiao Li et al.
Summary: The oxygen-containing carbonized coconut framework (O-CCF) with a 3D tubular structure is designed to inhibit dendrite growth, enabling stable Na stripping/plating over 10,000 cycles. The oxygen functional groups contribute to the adsorption of Na+ and reduce the Na nucleation energy on the surface of O-CCF.
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Chao Ye et al.
Summary: This study reports the catalytic oxidation of K2S on a sulfur host with Co single atoms immobilized on nitrogen-doped carbon. The potassium-sulfur battery exhibited high capacities under high current densities, providing atomic-scale insights for the rational design of highly efficient sulfur hosts.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
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Chichu Qin et al.
Summary: Potassium metal is a promising alkali metal anode but dendrite formation limits its application. The construction of a continuous and compact protective layer on potassium metal anode through a self-catalysis tribo-electrochemistry reaction in seconds significantly improves K+ diffusion kinetics and suppresses K dendrite formation. This results in potassium symmetric cells exhibiting stable cycles lasting over 1000 hours, nearly 500 times longer than pristine K.
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Jiaheng Zhang et al.
Summary: This study utilized a graphite-intercalation-compound of K (K-GIC) as an anode for potassium metal batteries, which effectively suppressed dendrite growth and mitigated volume expansion, leading to improved cycling stability. Additionally, the K-GIC compound exhibited good environmental stability when in contact with air and water, indicating its potential for promoting the application of safe and high-performance potassium metal batteries.
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