Ge–Si/C Nanofiber Composite with Enhanced Cyclic Stability and Rate Capability for Lithium-Ion Batteries

ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: 8(5), P. 2196 - 2204

Published: Jan. 23, 2025

To deal with the low conductivity and structural instability of silicon (Si)-based anode, a Ge–Si/C nanofiber (Ge–Si/CNF) composite is fabricated based on different starting reaction potentials for Si Ge lithium excellent Ge. Sucrose innovatively introduced as spinning aid to maintain carbon fiber structure derived from poly(vinyl alcohol) polymer. When Ge–Si/CNFs are investigated anode material lithium-ion batteries, it demonstrates cyclic stability rate capability. Specifically, can still retain 764.1 mA h g–1 at 0.5 A after 1000 cycles, its capacity retention reaches 72.1%. Significantly, specific 1168.7 2.0 g–1, which restored 1731.4 when adjusted back 0.1 g–1. The storage Ge–Si/CNF attributed effective release stress during lithiation/delithiation process because one component lithiated, other act buffer matrix improving stability. Additionally, addition fibers speed up transfer Li+ electrons.

Language: Английский

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BiPS4 quantum dots implanted in three-dimensional nitrogen-doped carbon matrix for boosted ion migration and sodium storage

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160408 - 160408

Published: Feb. 1, 2025

Language: Английский

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Stabilization strategies for bismuth-based anodes in sodium-ion batteries: From nanoscale engineering to carbon hybridization

Composites Part B Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 112538 - 112538

Published: April 1, 2025

Language: Английский

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Fabrication of Sb-based alloys/carbon nanofibers with uniform dispersion as anode material for high efficiency sodium storage

Chinese Journal of Chemical Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

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Preparation and sodium storage properties of CuFeSe2@C nanorods

Vacuum, Journal Year: 2025, Volume and Issue: unknown, P. 114380 - 114380

Published: April 1, 2025

Language: Английский

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