Post-Densified conformal coating of a Pyrogallol/Polyethyleneimine complex as a durable Electrolyte-Blocking organic layer for High-Capacity anode materials

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161649 - 161649

Published: March 1, 2025

Language: Английский

Three-Dimensional Carbon Nanotube-Coated Copper Mesh as a Current Collector for Graphite Anodes in High-Performance Lithium-Ion Batteries

Processes, Journal Year: 2025, Volume and Issue: 13(4), P. 964 - 964

Published: March 24, 2025

Copper foil has been widely adopted as the anode current collector in commercial lithium-ion batteries (LIBs) due to its exceptional electrical conductivity, mechanical flexibility, and low cost. However, smooth surface of copper often leads active material delamination during cycling, resulting accelerated capacity degradation. To address this limitation, study developed a novel composite featuring high specific area rough porous architecture through dip-coating method. The fabrication process employs mesh structural skeleton, integrated with carbon nanotubes (CNTs) polyvinylidene fluoride (PVDF) functional fillers. Compared conventional metallic foils, demonstrates superior interfacial wettability, enhanced adhesion strength, reduced contact resistance. When paired graphite material, electrode exhibits outstanding cycling stability rate capability. Specifically, delivers 297.9 mAh g−1 94.3% retention after 200 cycles at 0.5 C, significantly outperforming graphite–copper counterpart (238.3 g−1, 81.2% retention). This work provides an innovative strategy for enhancing battery performance rational design efficient durable collectors.

Language: Английский

Towards high performance lithium storage anodes: Design strategy for carbon coated SnS-SnO2/rGO nanocomposites

Radiation Physics and Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 112821 - 112821

Published: April 1, 2025

Language: Английский