A New Type of Multifunctional Polar Binder: Toward Practical Application of High Energy Lithium Sulfur Batteries


Journal Article

Researchers have designed and synthesized a new type of amino functional group (AFG) binder by the polymerization of hexamethylene diisocyanate (HDI) with polyethylenimine (PEI) polymer, which has been successfully used with a commercial sulfur powder cathode. The unique advantages of the binder design are featured with abundant amine groups and hyper-branched network structures, which provide the strong affinity to absorb polysulfide intermediates, resulting in improved cycling performance with a capacity retention of 91.3% over 600 cycles at 2C. It also shows a high sulfur-loading areal capacity up to 7.9 mAh cm -2 with stable performance.

Full Text

Duke Authors

Cited Authors

  • Chen, W; Qian, T; Xiong, J; Xu, N; Liu, X; Liu, J; Zhou, J; Shen, X; Yang, T; Chen, Y; Yan, C

Published Date

  • March 28, 2017

Published In

Volume / Issue

  • 29 / 12

Electronic International Standard Serial Number (EISSN)

  • 1521-4095

International Standard Serial Number (ISSN)

  • 0935-9648

Digital Object Identifier (DOI)

  • 10.1002/adma.201605160

Citation Source

  • Scopus