MOF-Derived Hollow Dodecahedral Carbon Structures with Abundant N Sites and Co Nanoparticle-Modified Cu Foil for Dendrite-Free Lithium Metal Battery DOI Open Access

Fei Wang,

Huijie Wei, Xinyuan Ren

et al.

Coatings, Journal Year: 2025, Volume and Issue: 15(4), P. 490 - 490

Published: April 20, 2025

In this work, hollow dodecahedral carbon structures with abundant N-doping sites and metal nanoparticles (NC-Co-CNTs) based on MOF-derivative materials were designed prepared as host for lithium to ensure uniform deposition a Cu current collector. NC-Co-CNTs have good electrical conductivity, which ensures fast electron transport Li+ transfer. The nanotubes catalytically derived by Co can promote the distribution of along surface inside cavity, larger electronegativity N-doped lithophilic such effectively adsorb lithium, inducing be deposited in form spherical dendrite-free state, inhibiting growth dendritic improving electrochemical performance battery. Based above advantages, electrodes NC-Co-CNT-based symmetric cells present superior cycling more than 1100 h low overpotential at 1 mAh cm−2/1 mAh·cm−2. Even high density 5 mA cm−2 parameters cm−2, it still cycles up 800 relatively overpotential.

Language: Английский

MOF-Derived Hollow Dodecahedral Carbon Structures with Abundant N Sites and Co Nanoparticle-Modified Cu Foil for Dendrite-Free Lithium Metal Battery DOI Open Access

Fei Wang,

Huijie Wei, Xinyuan Ren

et al.

Coatings, Journal Year: 2025, Volume and Issue: 15(4), P. 490 - 490

Published: April 20, 2025

In this work, hollow dodecahedral carbon structures with abundant N-doping sites and metal nanoparticles (NC-Co-CNTs) based on MOF-derivative materials were designed prepared as host for lithium to ensure uniform deposition a Cu current collector. NC-Co-CNTs have good electrical conductivity, which ensures fast electron transport Li+ transfer. The nanotubes catalytically derived by Co can promote the distribution of along surface inside cavity, larger electronegativity N-doped lithophilic such effectively adsorb lithium, inducing be deposited in form spherical dendrite-free state, inhibiting growth dendritic improving electrochemical performance battery. Based above advantages, electrodes NC-Co-CNT-based symmetric cells present superior cycling more than 1100 h low overpotential at 1 mAh cm−2/1 mAh·cm−2. Even high density 5 mA cm−2 parameters cm−2, it still cycles up 800 relatively overpotential.

Language: Английский

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