期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 7, 期 15, 页码 12948-12954出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.9b01951
关键词
Li-S batteries; Fullerene-shaped carbons; Hybrid cathodes; Detonation; Frameworks
资金
- National Natural Science Foundation of China [51802322]
- Ningbo Natural Science Foundation [2018A610082]
- S&T Innovation 2025 Major Special Programme of Ningbo [2018B10054]
- Anhui Natural Science Foundation [1908085ME151]
Hereinafter, we report onion-like carbon (OLC) and fullerene-like carbon (FLC) materials synthesized via 2,4,6-trinitrotoluene (TNT) and 1,3,5-trinitro-1,3,5-triazine (Royal Demolition Explosive, RDX) detonation technique and acetylene gas explosion process, respectively. Abundant micropores, mesopores, and different spatial structures exist inside the two carbon materials. They demonstrate good conductivity and sulfur storage capacity, and various rich pore structures, inhibiting the shuttle effect of the solved lithium polysulfide in the charge-discharge process. The pore size distribution, pore volume, specific surface area, electronic conductivity, composite structure, interaction between sulfur and carbon, and cell performance are researched. The Li-S battery furnished with the two carbon-sulfur hybrid materials as the cathode host material delivers a well reversible rate cycling performance, and a low decay rate of 0.037% and 0.056% per cycle during 1000 cycles at 1C for FLC and OLC, respectively, with a sulfur load of about 2.2 mg/cm(2). The excellent electrochemical performance of the two carbon materials obtained by detonation method makes them ideal substitute products of the commercial Super P carbon material, especially the FLC material.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据