Tailoring binder–cathode interactions for long-life room-temperature sodium–sulfur batteries

2020 ◽  
Vol 8 (43) ◽  
pp. 22983-22997 ◽  
Author(s):  
Alex Yong Sheng Eng ◽  
Dan-Thien Nguyen ◽  
Vipin Kumar ◽  
Gomathy Sandhya Subramanian ◽  
Man-Fai Ng ◽  
...  
Keyword(s):  
Room Temperature ◽  
Structural Integrity ◽  
Short Chain ◽  
Strong Interactions ◽  
Capacity Loss ◽  
Long Life ◽  
Sodium Sulfur ◽  
Sulfur Cathodes

Strong interactions between carboxyl binder groups and short-chain sodium polysulfides prevent capacity loss and maintain structural integrity of sulfur cathodes.

scholarly journals Nickel sulfide nanocrystals on nitrogen-doped porous carbon nanotubes with high-efficiency electrocatalysis for room-temperature sodium-sulfur batteries

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Zichao Yan ◽  
Jin Xiao ◽  
Weihong Lai ◽  
Li Wang ◽  
Florian Gebert ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Porous Carbon ◽  
Density Functional ◽  
Room Temperature ◽  
Lewis Base ◽  
Nitrogen Doped ◽  
High Electronic Conductivity ◽  
Sulfur Host ◽  
Sodium Sulfur ◽  
Sulfur Cathodes

Abstract Polysulfide dissolution and slow electrochemical kinetics of conversion reactions lead to low utilization of sulfur cathodes that inhibits further development of room-temperature sodium-sulfur batteries. Here we report a multifunctional sulfur host, NiS2 nanocrystals implanted in nitrogen-doped porous carbon nanotubes, which is rationally designed to achieve high polysulfide immobilization and conversion. Attributable to the synergetic effect of physical confinement and chemical bonding, the high electronic conductivity of the matrix, closed porous structure, and polarized additives of the multifunctional sulfur host effectively immobilize polysulfides. Significantly, the electrocatalytic behaviors of the Lewis base matrix and the NiS2 component are clearly evidenced by operando synchrotron X-ray diffraction and density functional theory with strong adsorption of polysulfides and high conversion of soluble polysulfides into insoluble Na2S2/Na2S. Thus, the as-obtained sulfur cathodes exhibit excellent performance in room-temperature Na/S batteries.

scholarly journals Long‐Life Room‐Temperature Sodium–Sulfur Batteries by Virtue of Transition‐Metal‐Nanocluster–Sulfur Interactions

2019 ◽  
Vol 58 (5) ◽  
pp. 1484-1488 ◽  
Author(s):  
Bin‐Wei Zhang ◽  
Tian Sheng ◽  
Yun‐Xiao Wang ◽  
Shulei Chou ◽  
Kenneth Davey ◽  
...  
Keyword(s):  
Transition Metal ◽  
Room Temperature ◽  
Metal Nanocluster ◽  
Long Life ◽  
Sodium Sulfur

scholarly journals Atomic cobalt as an efficient electrocatalyst in sulfur cathodes for superior room-temperature sodium-sulfur batteries

2018 ◽  
Vol 9 (1) ◽  
Author(s):  
Bin-Wei Zhang ◽  
Tian Sheng ◽  
Yun-Dan Liu ◽  
Yun-Xiao Wang ◽  
Lei Zhang ◽  
...  
Keyword(s):  
Room Temperature ◽  
Sodium Sulfur ◽  
Sulfur Cathodes

Metal-based electrocatalysts for sulfur cathodes in room-temperature Na-S batteries

2021 ◽  
Author(s):  
Xiang Long Huang ◽  
Shi Xue Dou ◽  
Zhiming M. Wang
Keyword(s):  
Energy Storage ◽  
Room Temperature ◽  
Next Generation ◽  
Energy Storage Devices ◽  
Research Attention ◽  
Storage Devices ◽  
Intensive Research ◽  
Sodium Sulfur ◽  
Sulfur Cathodes

Room-temperature sodium-sulfur (RT Na-S) batteries have recently captured intensive research attention from the community and are regarded as one of promising next-generation energy storage devices, since they not only integrate...

scholarly journals Long‐life room‐temperature sodium‐sulfur batteries by virtue oftransition metal nanocluster‐sulfur interactions

2018 ◽  
Author(s):  
binwei zhang ◽  
tian sheng ◽  
yunxiao wang ◽  
shulei chou ◽  
Kenneth Davey ◽  
...  
Keyword(s):  
Room Temperature ◽  
Metal Nanocluster ◽  
Long Life ◽  
Sodium Sulfur

scholarly journals Unveiling the physiochemical aspects of the matrix in improving sulfur-loading for room-temperature sodium–sulfur batteries

2021 ◽  
Author(s):  
Sungjemmenla ◽  
Chhail Bihari Soni ◽  
S. K. Vineeth ◽  
Vipin Kumar
Keyword(s):  
Room Temperature ◽  
The Matrix ◽  
Sodium Sulfur ◽  
Sulfur Cathodes

The physiochemical aspects of the matrix play an important role in deciding the loading of sulfur cathodes.

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