Interfacial Chemistry and Lithiophilicity Design for High Energy Hybrid Li‐Ion/Metal Batteries in a Wide Temperature Range DOI Open Access
Taiyu Lyu, Meina Huang, Jinping Xu

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 20, 2025

Abstract Hybrid Li‐ion/metal batteries can optimize energy density and lifespan. However, hybrid face key obstacles like poor Li reversibility dendrite growth. Herein, carbon nanofibers encapsulated by graphitized layers decorated with uniformly distributed Ag nanoparticles (G‐CF‐Ag) are designed, interfacial chemistry is regulated to enhance the performance of batteries. The C sp2 structure in effectively reduces side reactions electrolytes, improve lithiophilicity induce uniform plating/stripping. A weakly solvated electrolyte 1 m LiFSI‐THF‐0.5wt.%LiNO 3 induces achieve rapid transport Li‐ions under fast charging conditions low temperatures. Consequently, a high‐capacity deposition 500 mA h g −1 (≈1.25 cm −2 ), G‐CF‐Ag||Li delivers an ultra‐high plateau capacity 716 at voltages below 0.1V 0.2 C, maintains average CE 99.1% over 150 cycles 2 charging. Notably, cell continues operate stably even wide temperature range from 50°C ‐20°C. Furthermore, ultra‐low N/P ratio 0.3, G‐CF‐Ag||NCM811 provides high 587.5 W kg C. At same ratio, G‐CF‐Ag||LFP stable cycling

Language: Английский

Interfacial Chemistry and Lithiophilicity Design for High Energy Hybrid Li‐Ion/Metal Batteries in a Wide Temperature Range DOI Open Access
Taiyu Lyu, Meina Huang, Jinping Xu

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 20, 2025

Abstract Hybrid Li‐ion/metal batteries can optimize energy density and lifespan. However, hybrid face key obstacles like poor Li reversibility dendrite growth. Herein, carbon nanofibers encapsulated by graphitized layers decorated with uniformly distributed Ag nanoparticles (G‐CF‐Ag) are designed, interfacial chemistry is regulated to enhance the performance of batteries. The C sp2 structure in effectively reduces side reactions electrolytes, improve lithiophilicity induce uniform plating/stripping. A weakly solvated electrolyte 1 m LiFSI‐THF‐0.5wt.%LiNO 3 induces achieve rapid transport Li‐ions under fast charging conditions low temperatures. Consequently, a high‐capacity deposition 500 mA h g −1 (≈1.25 cm −2 ), G‐CF‐Ag||Li delivers an ultra‐high plateau capacity 716 at voltages below 0.1V 0.2 C, maintains average CE 99.1% over 150 cycles 2 charging. Notably, cell continues operate stably even wide temperature range from 50°C ‐20°C. Furthermore, ultra‐low N/P ratio 0.3, G‐CF‐Ag||NCM811 provides high 587.5 W kg C. At same ratio, G‐CF‐Ag||LFP stable cycling

Language: Английский

Citations

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