|
|||||
|
|
Tungsten Disulfide Catalysts Supported on a Carbon Cloth Interlayer for High Performance Li–S Battery |
|
| Authors: | Jungjin Park Byeong‐Chul Yu Joong Sun Park Jang Wook Choi Chunjoong Kim Yung‐Eun Sung John B. Goodenough |
| Affiliation: | 1. School of Chemical and Biological Engineering, Seoul National University (SNU), Seoul, Republic of Korea;2. Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, Republic of Korea;3. Texas Materials Institute, University of Texas at Austin, TX, USA;4. Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, IL, USA;5. Graduate School of EEWS (Energy, Environment, Water, Sustainability), Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea;6. Department of Material Science and Engineering, Chungnam National University, Daejeon, Republic of Korea |
| Abstract: | The capacity limitations of insertion‐compound cathodes has motivated interest in a sulfur cathode for a rechargeable battery cell with a metallic‐lithium anode; but irreversible capacity loss owing to solubility of intermediate Li2Sx (x = 2–8) polysulfides in the organic‐liquid electrolytes used has prevented practical application. A dual‐function cathode structure consisting of layered tungsten disulfide (WS2) supported both on the cathode current collector and on a carbon cloth interlayer (CCl) gives excellent performance in a lithium half‐cell by providing strong adsorption of the soluble Li2Sx on the WS2 with fast access to electrons from the current collector via a blocking carbon cloth interlayer. |
| Keywords: | carbon cloth interlayer lithium– sulfur batteries polysulfide adsorption polysulfide redox kinetics tungsten disulfide |