Multi-level porous carbon prepared via a facile sugar-blowing method for high-performance lithium-sulfur batteries. (27th July 2019)

• Record Type: Journal Article
• Authors: Su, Wenxiao; Feng, Wangjun; Cao, Yue; Li, Miaomiao; Song, Changkun; Cheng, Lingjin
• Is Part Of: Ferroelectrics. Volume 547(2019)
• Page Start: 148
• Page End: 155
• Publication Date: 2019-07-27
• Subjects: Lithium–sulfur battery -- multi-level porous carbon -- cathode -- sugar blowing; Ferroelectricity -- Periodicals; Ferroelectric crystals -- Periodicals; 537
• DOI: 10.1080/00150193.2019.1592494
• Languages: English
• ISSNs: 0015-0193

Abstract

Abstract: A novel 3D multi-level porous carbon is obtained via a simple facile sugar-blowing method. The multi-level porous carbon sreves as the sulfur host and prepares multi-level porous carbon/sulfur cathode, which exhibited high initial discharge capacity of 1200 mAh g −1 at 0.1 C. After 200 cycles at 0.2 C, the multi-level porous carbon/sulfur cathode remained retentive capacity of 80%. These excellent electrochemical performance can be attributed to the abundant interconnected multi-level porous carbon, providing spacious channels for the transportation of electrons and lithium ions. In addition, multi-level porous carbon prevent the shuttling of polysulfides in charge and discharge process.