Flexible freestanding sandwich-structured sulfur cathode with superior performance for lithium–sulfur batteries

2014 ◽  
Vol 2 (23) ◽  
pp. 8623-8627 ◽  
Author(s):  
Jiangxuan Song ◽  
Zhaoxin Yu ◽  
Terrence Xu ◽  
Shuru Chen ◽  
Hiesang Sohn ◽  
...  
Keyword(s):  
Rate Capability ◽  
Cycling Stability ◽  
Superior Performance ◽  
Sulfur Cathode ◽  
Lithium Sulfur Batteries ◽  
Excellent Cycling Stability ◽  
Sulfur Cathodes ◽  
Areal Capacity ◽  
Lithium Sulfur

Flexible freestanding sandwich-structured sulfur cathodes are developed for lithium–sulfur batteries, which exhibit excellent cycling stability and rate capability. A high areal capacity of ∼4 mA h cm−2 is also demonstrated based on this new cathode configuration.

Gel based sulfur cathodes with a high sulfur content and large mass loading for high-performance lithium–sulfur batteries

2017 ◽  
Vol 5 (4) ◽  
pp. 1650-1657 ◽  
Author(s):  
Shiqi Li ◽  
Tong Mou ◽  
Guofeng Ren ◽  
Juliusz Warzywoda ◽  
Zidong Wei ◽  
...  
Keyword(s):  
Sulfur Content ◽  
High Performance ◽  
Large Mass ◽  
Mass Loading ◽  
Sulfur Cathode ◽  
High Sulfur Content ◽  
Lithium Sulfur Batteries ◽  
Sulfur Cathodes ◽  
Lithium Sulfur ◽  
High Sulfur Loading

A bacterial cellulose based carbon nanoribbon aerogel was employed for a gel-based sulfur cathode, simultaneously achieving both a high sulfur content (90%) and a high sulfur loading (6.4 mg cm−2) with a large capacity of 943 mA h g−1or 5.9 mA h cm−2.

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 Electroconductive Additives for High-Rate Capability of High-Areal-Capacity Lithium–Sulfur Batteries Using Metal-Foam Current Collector

2019 ◽  
Author(s):  
Hiroki Nara ◽  
Tokihiko Yokoshima ◽  
Hitoshi Mikuriya ◽  
Shingo Tsuda ◽  
Tetsuya Osaka
Keyword(s):  
Energy Density ◽  
Aluminum Foam ◽  
Metal Foam ◽  
Rate Capability ◽  
Current Collector ◽  
High Rate ◽  
Lithium Sulfur Batteries ◽  
Areal Capacity ◽  
Lithium Sulfur ◽  
High Sulfur Loading

Various types of electroconductive additives were evaluated for high C-rate capability in an attempt to extend practical application of high-areal-capacity lithium–sulfur batteries that employ an aluminum-foam current collector. Carbon nanofibers (CNFs) were found to be the most effective additive, with the ability to attain a high-sulfur-loading of 40 mg cm−2. A CNF-containing cell exhibited gravimetric capacities of 1094 and 758 mAh gsulfur−1 (46.8 and 32.4 mAh cm−2) at 0.05 and 0.1 C-rate, respectively, in an ether-based electrolyte. Because a CNF-containing slurry exhibits low viscosity even at a high solid ratio, it could be filled into the aluminum foam. Additionally, a lithium–sulfur battery with high-sulfur-loading had an energy density of ~120 Wh kg−1, a value that was calculated from the weight of the components of the cathode, anode, current collectors, electrolyte, and separator. Assuming that the amount of electrolyte decreases and that the energy density of cells accumulate, a theoretical energy density of 522 Wh kg−1 was estimated. Moreover, it was found that even if a high-areal-capacity was achieved, the discharge capacity converged at a high C-rate, unless there was an improvement in ion diffusion in the bulk electrolyte. This is considered a limitation of sulfur cathodes with high-sulfur-loading.

A new cathode material synthesized by a thiol-modified metal–organic framework (MOF) covalently connecting sulfur for superior long-cycling stability in lithium–sulfur batteries

2019 ◽  
Vol 7 (42) ◽  
pp. 24515-24523 ◽  
Author(s):  
Xu Liu ◽  
Shi Wang ◽  
Ailian Wang ◽  
Zhinan Wang ◽  
Jie Chen ◽  
...  
Keyword(s):  
Cathode Material ◽  
Metal Organic Framework ◽  
Cycling Stability ◽  
Sulfur Cathode ◽  
Lithium Sulfur Batteries ◽  
Metal Organic ◽  
First Time ◽  
Lithium Sulfur ◽  
Organic Framework

A stabilized sulfur cathode with CNT@MOF covalently connected with sulfur was fabricated for the first time.

A high-areal-capacity lithium–sulfur cathode achieved by a boron-doped carbon–sulfur aerogel with consecutive core–shell structures

2019 ◽  
Vol 55 (8) ◽  
pp. 1084-1087 ◽  
Author(s):  
Yuqing Liu ◽  
Yan Yan ◽  
Kun Li ◽  
Yang Yu ◽  
Qinghong Wang ◽  
...  
Keyword(s):  
Specific Capacity ◽  
Cycling Stability ◽  
Shell Structures ◽  
Core Shell ◽  
Sulfur Cathode ◽  
High Specific Capacity ◽  
Boron Doped ◽  
Areal Capacity ◽  
Lithium Sulfur

A boron-doped carbon–sulfur (BCS) aerogel with consecutive “core–shell” structures achieves a high specific capacity of 1326 mA h g−1, a high areal capacity of 13.5 mA h cm−2, and a long-term cycling stability.

Cubic MnSe2 microcube enabling high-performance sulfur cathode for lithium-sulfur batteries

2021 ◽  
Author(s):  
Jian Bao ◽  
Xin-Yang Yue ◽  
Rui-Jie Luo ◽  
Yong-Ning Zhou
Keyword(s):  
Strong Interaction ◽  
High Performance ◽  
Sulfur Cathode ◽  
Shuttle Effect ◽  
Lithium Polysulfide ◽  
Lithium Sulfur Batteries ◽  
Sulfur Cathodes ◽  
Lithium Sulfur

Cubic MnSe2 microcubes are introduced into sulfur cathodes to prevent the shuttle effect of lithium polysulfide through binding with polysulfide via the strong interaction between Se and S, thus alleviate...

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