Electrochemical properties of PABTH as cathode materials for rechargeable lithium battery |
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| Institution: | 1. IFW Dresden, Institute for Complex Materials, Helmholtzstr. 20, D-01069 Dresden, Germany;2. National Institute of Advanced Industrial Science and Technology (AIST), Energy Technology Research Institute, Umezono 1-1-1, Tsukuba, Japan;3. TU Dresden, Department of Inorganic Chemistry, Bergstr. 66, D-01069 Dresden, Germany;4. TU Dresden, Institute of Materials Science, Helmholtzstr. 7, D-01069 Dresden, Germany;1. Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei, Taiwan, ROC;2. School of Physics, Universiti Sains Malaysia, Pulau Pinang, Malaysia;3. Sustainable Energy Center, National Taiwan University of Science and Technology, Taipei, Taiwan, ROC;4. R&D Center for Membrane Technology, Chung Yuan Christian University, Taoyuan, Taiwan, ROC;5. Department of Chemical Engineering, Chung Yuan Christian University, Taoyuan, Taiwan, ROC;6. National Synchrotron Radiation Research Center, Hsin-Chu, Taiwan, ROC;7. Graduate School of Biochemical Engineering, Ming Chi University of Technology, New-Taipei City, Taiwan, ROC;1. Shandong Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China;2. School of Aviation and Transportation, Jiangsu College of Engineering and Technology, Nantong 226000, China;3. Dongchang College, Liaocheng University, Liaocheng 252059, China |
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| Abstract: | The electrochemical properties of polyanthra 1′,9′,8′-b,c,d,e] 4′,10′,5′-b′,c′,d′,e′]bis-1,6,6a(6a-SIV)trithia]pentalene (PABTH) were studied. It is found that PABTH exhibits a good cyclability and high capacity of 290 mAh/g in 1 M LiTFSI/DXL–DME (2:1 by weight) electrolyte. Detailed electrochemical characterization reveals that the capacity fading of PABTH within the first several cycles is due to the loss of ABTH monomer or its oligomer that is contained in PABTH in the form of soluble discharging products. It also needs to be noted that PABTH and ABTH has much higher charge–discharge efficiency (up to 95%) than that of sulfur (below 85%) because the S–S bond is fixed to the backbone. |
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