A “boxes in fibers” strategy to construct a necklace-like conductive network for high-rate and high-loading lithium–sulfur batteries

2020 ◽  
Vol 8 (22) ◽  
pp. 11327-11336 ◽  
Author(s):  
Shiyuan Zhou ◽  
Jiapeng Liu ◽  
Fanxuan Xie ◽  
Yinghao Zhao ◽  
Tao Mei ◽  
...  
Keyword(s):  
Carbon Nanofibers ◽  
High Rate ◽  
High Loading ◽  
Conductive Network ◽  
Excellent Performance ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Lithium Sulfur

Following a “boxes in fibers” strategy, a 3D conductive network is constructed by necklace-like N-doped carbon nanofibers with carbon nanoboxes and TiC as an efficient sulfur host, showing excellent performance even under high-rate and high-loading.

Macroporous Multichannel Carbon Nanofibers Embedded with Co/Fe‐N Electrocatalyst as the Sulfur Host for Boosting Polysulfides Conversion in Lithium‐Sulfur Batteries

2021 ◽  
Vol 6 (24) ◽  
pp. 5932-5940
Author(s):  
Zhiliang Zhang ◽  
Jie Xu ◽  
Waqas Ahmed ◽  
Weiqiang Tang ◽  
Dongfang Niu ◽  
...  
Keyword(s):  
Carbon Nanofibers ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Lithium Sulfur

scholarly journals Co-W Bimetallic Carbides as Sulfur Host for High-Performance Lithium–Sulfur Batteries

2021 ◽  
Author(s):  
Dongke Zhang ◽  
Ting Huang ◽  
Pengfei Zhao ◽  
Ze Zhang ◽  
Xingtao Qi ◽  
...  
Keyword(s):  
High Performance ◽  
Conductive Network ◽  
Rate Performance ◽  
Cycle Stability ◽  
Sulfur Cathode ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Lithium Sulfur ◽  
Excellent Stability

Abstract Due to the low conductivity of sulfur and the dissolution of polysulfides, the research and application of lithium-sulfur (Li-S) batteries have encountered certain resistance. Increasing conductivity and introducing polarity into the sulfur host can effectively overcome these long-standing problems. Herein, We first prepared Co3W3C@ C@ CNTs / S material and used it in the cathode of lithium-sulfur batteries, The existence of carboxylated CNTs can form a conductive network, accelerate the transmission of electrons and improve the rate performance, and polar Co3W3C can form a strong interaction with polysulfide intermediates, effectively inhibiting its shuttle effect, improving the utilization of sulfur cathode electrodes, and improving the capacity and cycle stability. The Co3W3C@C@CNTs / S electrode material has a capacity of 1,093 mA h g-1 at a 0.1 A g− 1 and 482 mA h g-1 at 5 A g− 1. Even after 500 cycles of 2 A g− 1, the capacity of each cycle is only reduced by 0.08%. The excellent stability of this material can provide a new idea for the future development of lithium-sulfur batteries.

Frogspawn inspired hollow Fe3C@N–C as an efficient sulfur host for high-rate lithium–sulfur batteries

Nanoscale ◽  
2019 ◽  
Vol 11 (44) ◽  
pp. 21532-21541 ◽  
Author(s):  
Huaiyue Zhang ◽  
Hongtao Cui ◽  
Jing Li ◽  
Yuanyuan Liu ◽  
Yanzhao Yang ◽  
...  
Keyword(s):  
High Rate ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Long Life ◽  
Lithium Sulfur

A hollow Fe3C@N–C with frogspawn-like architecture was successfully constructed as an efficient sulfur host for high-rate and long-life lithium–sulfur batteries.

A 3D conductive network with high loading Li2S@C for high performance lithium–sulfur batteries

2017 ◽  
Vol 5 (36) ◽  
pp. 19358-19363 ◽  
Author(s):  
Dong-huang Wang ◽  
Dong Xie ◽  
Xin-hui Xia ◽  
Xu-qing Zhang ◽  
Wang-jia Tang ◽  
...  
Keyword(s):  
High Performance ◽  
Active Material ◽  
High Loading ◽  
Conductive Network ◽  
Protective Shield ◽  
Lithium Sulfur Batteries ◽  
Material Utilization ◽  
Areal Capacity ◽  
Lithium Sulfur ◽  
Active Material Utilization

We have prepared an integrated CF–CB–Li2S@C cathode with high loading Li2S for high areal-capacity Li–S batteries. The federated conductive network and efficient carbon coating not only provide an efficient electron transport and guarantee high active material utilization but also form a durable protective shield for suppressing polysulfide dissolution.

scholarly journals Free-standing and binder-free highly N-doped carbon/sulfur cathodes with tailorable loading for high-areal-capacity lithium–sulfur batteries

2015 ◽  
Vol 3 (41) ◽  
pp. 20482-20486 ◽  
Author(s):  
A. Schneider ◽  
C. Suchomski ◽  
H. Sommer ◽  
J. Janek ◽  
T. Brezesinski
Keyword(s):  
High Loading ◽  
Carbon Paper ◽  
Free Standing ◽  
Lithium Sulfur Batteries ◽  
Binder Free ◽  
Sulfur Host ◽  
Sulfur Cathodes ◽  
Areal Capacity ◽  
Lithium Sulfur

A practical high-loading Li–S battery is realized by using free-standing and highly conductive N-doped carbon paper as sulfur host.

scholarly journals Constructing Co 3 S 4 Nanosheets Coating N‐Doped Carbon Nanofibers as Freestanding Sulfur Host for High‐Performance Lithium–Sulfur Batteries

2020 ◽  
Vol 7 (22) ◽  
pp. 2002037
Author(s):  
Xuzi Zhang ◽  
Chaoqun Shang ◽  
Eser Metin Akinoglu ◽  
Xin Wang ◽  
Guofu Zhou
Keyword(s):  
Carbon Nanofibers ◽  
High Performance ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Lithium Sulfur
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