4.7 Article

Inverse Vulcanization of Elemental Sulfur to Prepare Polymeric Electrode Materials for Li-S Batteries

Journal

ACS MACRO LETTERS
Volume 3, Issue 3, Pages 229-232

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/mz400649w

Keywords

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Funding

  1. ACS-PRF [51026-ND10]
  2. NSF [CHE-1305773]
  3. WCU Program through the NRF of Korea - Ministry of Education, Science and Technology [R31-10013]
  4. NRF for the National Creative Research Initiative Center for Intelligent Hybrids [2010-0018290]
  5. Korean Ministry of Education, Science, and Technology through Institute of Basic Science (IBS) Program
  6. NIST [70NANB12H164]

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Sulfur-rich copolymers based on poly(sulfur-random-1,3-diisopropenylbenzene) (poly(S-r-DIB)) were synthesized via inverse vulcanization to create cathode materials for lithium sulfur battery applications. These materials exhibit enhanced capacity retention (1005 mAh/g at 100 cycles) and battery lifetimes over 500 cycles at a C/10 rate. These poly(S-r-DIB) copolymers represent a new class of polymeric electrode materials that exhibit one of the highest charge capacities reported, particularly after extended charge discharge cycling in Li-S batteries.

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