Skip to main content
eScholarship
Open Access Publications from the University of California

Toward practical application of functional conductive polymer binder for a high-energy lithium-ion battery design

  • Author(s): Zhao, H
  • Wang, Z
  • Lu, P
  • Jiang, M
  • Shi, F
  • Song, X
  • Zheng, Z
  • Zhou, X
  • Fu, Y
  • Abdelbast, G
  • Xiao, X
  • Liu, Z
  • Battaglia, VS
  • Zaghib, K
  • Liu, G
  • et al.

Published Web Location

https://doi.org/10.1021/nl503490h
Abstract

© 2014 American Chemical Society. Silicon alloys have the highest specific capacity when used as anode material for lithium-ion batteries; however, the drastic volume change inherent in their use causes formidable challenges toward achieving stable cycling performance. Large quantities of binders and conductive additives are typically necessary to maintain good cell performance. In this report, only 2% (by weight) functional conductive polymer binder without any conductive additives was successfully used with a micron-size silicon monoxide (SiO) anode material, demonstrating stable and high gravimetric capacity (>1000 mAh/g) for μ500 cycles and more than 90% capacity retention. Prelithiation of this anode using stabilized lithium metal powder (SLMP) improves the first cycle Coulombic efficiency of a SiO/NMC full cell from μ48% to μ90%. The combination enables good capacity retention of more than 80% after 100 cycles at C/3 in a lithium-ion full cell.

Main Content
Current View