Lewis Acid–Base Interactions between Polysulfides and Metal Organic Framework in Lithium Sulfur Batteries

• Published in: Nano letters Vol. 14; no. 5; pp. 2345 - 2352
• Main Authors: Zheng, Jianming, Tian, Jian, Wu, Dangxin, Gu, Meng, Xu, Wu, Wang, Chongmin, Gao, Fei, Engelhard, Mark H, Zhang, Ji-Guang, Liu, Jun, Xiao, Jie
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 14.05.2014
• Subjects: Condensed matter: structure, mechanical and thermal properties; Confinement; Cycles; Diffusion in nanoscale solids; Diffusion in solids; Environmental Molecular Sciences Laboratory; Exact sciences and technology; Lewis acidic center; Li-S battery; Lithium sulfur batteries; metal organic framework; Metal-organic frameworks; Migration; Nickel; Physics; Polysulfides; polysulfides confinement; Porosity; Sulfur; sulfur composite; Transport properties of condensed matter (nonelectronic); Metal organic framework; polysulfides confinement; sulfur composite; Lewis acidic center; cycle life; lithium sulfur battery; Nickel base alloys; Composite materials; Strong interactions; Benzene; Organometallic compounds; Molecular interaction; Diffusion; Dissolution; Lithium sulfur batteries

Lithium–sulfur (Li–S) battery is one of the most promising energy storage systems because of its high specific capacity of 1675 mAh g–1 based on sulfur. However, the rapid capacity degradation, mainly caused by polysulfide dissolution, remains a significant challenge prior to practical applications....