期刊
CHEMELECTROCHEM
卷 4, 期 1, 页码 115-121出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/celc.201600479
关键词
batteries; lithium; polymers; sulfur; synthesis design
资金
- National Natural Science Foundation of China [51631004, 51422103, 21673095, 51671092]
- Key Project of Chinese Ministry of Education [313026]
- Research Fund for the Doctoral Program of Higher Education of China [20120061120042]
- Top-Notch Young Talent Program of China
- Program for New Century Excellent Talents in University [NCET-13-0255]
- Special Fund for Industrial Innovation in Jilin Province [2016C039]
- Program for Innovative Research Teams (in Science and Technology) at the University of Jilin Province
- Changbai Mountain Scholars Program
- Natural Science Foundation of Jilin Province [20160101315JC]
To explore the potential application of lithium-sulfur batteries (LSBs) in the emerging electric vehicle market, sulfur-polypyrrole (S-PPy) is prepared by a facile ball-milling route, in which polypyrrole is synthesized by using ferric chloride as an oxidant in a self-degrading template method. Compared with sulfur, S-PPy possesses a higher discharge capacity, much better cycling stability, and better rate performance. At a current density of 200mAg(-1), the discharge capacity of S-PPy is maintained at 675mAhg(-1) after 150cycles, and even at a current density of 1675mAg(-1), the retained discharge capacity is still 617mAhg(-1) after 100cycles. The retained discharge capacity of pure sulfur, however, is only 150mAhg(-1) after 150cycles at a current density of 200mAg(-1). These results indicate that S-PPy, with its facile, low-cost, and eco-friendly synthesis, could be a potential cathode material for LSBs.
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