Reversible Crosslinked Polymer Binder for Recyclable Lithium Sulfur Batteries with High Performance Academic Article uri icon

abstract

  • AbstractOwing to the negative impact of the extensive utilization of batteries on the environment, sustainability of the cells needs to be included in the systemic research of batteries. Herein, a dissolvable ionic crosslinked polymer (DICP) is exploited as a binder for lithiumsulfur batteries by crosslinking the polyacrylic acid and polyethyleneimine through carboxyamino ionic interaction. This interaction is pHcontrolled, and therefore, the crosslinked binder network can be readily dissociated under basic conditions, providing a facile strategy enabling valuable components recycled through a convenient washing method. The sulfur cathode prepared using the recycled carbonsulfur composite can deliver comparable capacity as that of fresh electrode. In addition, evidence from cell performance and characterizations, such as in situ Xray absorption spectroscopy, in situ UVvisible spectroscopy, Xray photoelectron spectroscopy, and density functional theory calculation, confirms that DICP is a more effective binder than its commercial counterpart on suppressing polysulfide dissolution in the electrolyte. Exploiting reversible crosslinked polymer binder for recyclable LiS batteries with ameliorated electrochemical performance, this study illuminates sustainable development for largescale energy storage systems.

published proceedings

  • ADVANCED FUNCTIONAL MATERIALS

altmetric score

  • 2.6

author list (cited authors)

  • Liu, Z., He, X., Fang, C., Camacho-Forero, L. E., Zhao, Y., Fu, Y., ... Liu, G.

citation count

  • 65

complete list of authors

  • Liu, Zhimeng||He, Xin||Fang, Chen||Camacho-Forero, Luis E||Zhao, Yangzhi||Fu, Yanbao||Feng, Jun||Kostecki, Robert||Balbuena, Perla B||Zhang, Junhua||Lei, Jingxin||Liu, Gao

publication date

  • September 2020

publisher