Abstract
Electrically well-contacted state between electrode coating layer and current collector in lithium rechargeable batteries is very important because their insufficient interfacial contact can occur degradation of electrochemical performance.[1] To enhance adhesion property between silicon electrode and copper current collector, in this work, surface-roughened Cu foil (roughness: 4-5μm) is employed as a new current collector. Its physical and electrochemical performances are compared with the commercial smooth Cu foil (roughness: 1-2 μm) for lithium rechargeable batteries. The silicon anode on the surface-roughened Cu foil showed not only higher the adhesion strength, but also improved cycle performance. We verified this issue by measuring adhesion force during the peeling test (Versatile Peel Analyzer, SUNGMOON SYSTECH Corp.) and checking capacity retention ratio during galvanic cycling with 2032 coin half-cells. In addition, scanning electron microscope (SEM) and confocal optical microscope (VertScan, SUNGMOON SYSTECH Corp.) are employed for their morphological analysis.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
