A dual coaxial nanocable sulfur composite for high-rate lithium-sulfur batteries

Nanoscale
Zhen LiYunhui Huang

Abstract

Lithium-sulfur batteries have great potential for some high energy applications such as in electric vehicles and smart grids due to their high capacity, natural abundance, low cost and environmental friendliness. But they suffer from rapid capacity decay and poor rate capability. The problems are mainly related to the dissolution of the intermediate polysulfides in the electrolyte, and to the poor conductivity of sulfur and the discharge products. In this work, we propose a novel dual coaxial nanocable sulfur composite fabricated with multi-walled nanotubes (MWCNT), nitrogen-doped porous carbon (NPC) and polyethylene glycol (PEG), i.e. MWCNTs@S/NPC@PEG nanocable, as a cathode material for Li-S batteries. In such a coaxial structure, the middle N-doped carbon with hierarchical porous structure provides a nanosized capsule to contain and hold the sulfur particles; the inner MWCNTs and the outer PEG layer can further ensure the fast electronic transport and prevent the dissolution of the polysulfides into the electrolyte, respectively. The as-designed MWCNT@S/NPC@PEG composite shows good cycling stability and excellent rate capability. The capacity is retained at 527 mA h g(-1) at 1 C after 100 cycles, and 791 mA h g(-1) at 0.5 C ...Continue Reading

References

Mar 13, 2009·Nature·Byoungwoo Kang, Gerbrand Ceder
Mar 11, 2010·Advanced Materials·Chang LiuHui-Ming Cheng
May 19, 2011·Angewandte Chemie·N JayaprakashLynden A Archer
May 26, 2011·Nature Communications·Xiulei JiLinda F Nazar
Oct 25, 2011·Journal of the American Chemical Society·Liwen JiYuegang Zhang
Dec 16, 2011·Nature Materials·Peter G BruceJean-Marie Tarascon
Mar 3, 2012·Physical Chemistry Chemical Physics : PCCP·Jia-jia ChenQuan-feng Dong
Mar 22, 2012·Chemical Communications : Chem Comm·Susanne DörflerMichael J Hoffmann
Oct 12, 2012·Accounts of Chemical Research·Scott Evers, Linda F Nazar
Oct 26, 2012·Accounts of Chemical Research·Arumugam ManthiramYu-Sheng Su
Oct 30, 2012·Journal of the American Chemical Society·Sen XinLi-Jun Wan
May 11, 2013·Physical Chemistry Chemical Physics : PCCP·Deli WangHéctor D Abruña
May 23, 2013·Nature Chemistry·Woo Jin ChungJeffrey Pyun
May 24, 2013·ACS Applied Materials & Interfaces·Fugen SunLicheng Ling
May 31, 2013·Angewandte Chemie·Yongzhu FuArumugam Manthiram
Sep 11, 2013·Advanced Materials·San MoonDo Kyung Kim

❮ Previous
Next ❯

Citations

Feb 18, 2015·Advanced Materials·Arumugam ManthiramChenxi Zu
Sep 18, 2014·Chemical Communications : Chem Comm·Renjie ChenFeng Wu
Oct 4, 2014·The Analyst·Binod RizalMichael J Naughton
Jan 10, 2018·Chemistry : a European Journal·Zhi ChangXiaogang Zhang
Jul 16, 2014·Chemical Communications : Chem Comm·Xia LiXueliang Sun
Jan 23, 2018·ACS Applied Materials & Interfaces·Linlin ZhangJun Chen
Oct 8, 2014·Chemical Reviews·Liqiang MaiLin Xu

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.