An ultrathin surface-nitrided porous titanium sheet as a current collector-free sulfur host for high-gravimetric-capacity lithium–sulfur batteries

2019 ◽  
Vol 55 (11) ◽  
pp. 1655-1658 ◽  
Author(s):  
Hao Zhao ◽  
Pei Yang ◽  
Meili Du ◽  
Wenxiang He ◽  
Meng Liu ◽  
...  
Keyword(s):  
Sulfur Content ◽  
Current Collector ◽  
Porous Titanium ◽  
Titanium Sheet ◽  
Lithium Sulfur Batteries ◽  
Cathode Structure ◽  
Sulfur Host ◽  
A Current ◽  
Lithium Sulfur ◽  
Free Sulfur

A novel cathode structure combines the sulfur host and the current collector together, increasing the sulfur content by over 20%.

An N-doped porous carbon/MXene composite as a sulfur host for lithium–sulfur batteries

2019 ◽  
Vol 6 (10) ◽  
pp. 2894-2899 ◽  
Author(s):  
Youquan Zhang ◽  
Wenwen Tang ◽  
Renming Zhan ◽  
Heng Liu ◽  
Hao Chen ◽  
...  
Keyword(s):  
Sulfur Content ◽  
Porous Carbon ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Multiple Adsorption ◽  
Lithium Sulfur

The sulfur content of the composite can reach 80%, and the composite has multiple adsorption for polysulfides.

Application of a Ti-Ni Alloy as a Current Collector of Positive Electrode for Lithium/Sulfur Batteries

2005 ◽  
Vol 486-487 ◽  
pp. 650-653 ◽  
Author(s):  
Gyu Bong Cho ◽  
Sang Sik Jeong ◽  
Soo Moon Park ◽  
Tae Hyun Nam
Keyword(s):  
Current Collector ◽  
Positive Electrode ◽  
Cycle Performance ◽  
Austenitic Phase ◽  
Lithium Polysulfide ◽  
Lithium Sulfide ◽  
Ni Alloy ◽  
Lithium Sulfur Batteries ◽  
A Current ◽  
Lithium Sulfur

A 49.8 at.%Ti-50.2 at.%Ni shape memory alloy was applied to a current collector of positive electrode for lithium/sulfur (Li/S) battery. Flexible austenitic phase having pseudoelasticity dominated in the Ti-Ni current collector at room temperature. In the discharge curve, two plateau regions due to the lithium polysulfide (Li2Sn) and the lithium sulfide (Li2S) were obviously observed. The initial discharge capacity was 1068 mAh/g for Li/S cell with the Al current collector, and that of the cell with the Ti-Ni current collector reached 1140 mAh/g. A little bit of declined cycle performance was associated with decreased sulfur utilization owing to a reaction with dissolved Ti and Ni elements. Compared with the Al current collector used commercially, the Ti-Ni alloy with pseudoelasticity was more suitable to apply for the current collector of Li/S battery.

A lightweight and binder-free electrode enabled by lignin fibers@carbon-nanotubes and graphene for ultrastable lithium–sulfur batteries

2018 ◽  
Vol 6 (46) ◽  
pp. 23486-23494 ◽  
Author(s):  
Tao Liu ◽  
Shimei Sun ◽  
Wei Song ◽  
Xiaolin Sun ◽  
Quanhai Niu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Current Collector ◽  
Lithium Sulfur Batteries ◽  
Binder Free ◽  
Sulfur Host ◽  
Lithium Sulfur

A lightweight and binder-free electrode, composed of lignin fibers@carbon nanotubes as sulfur host and graphene as current collector, is applied for ultrastable Li–S batteries.

Graphene-nanoscroll-based Integrated and self-standing electrode with a sandwich structure for lithium sulfur batteries

2020 ◽  
Vol 7 (3) ◽  
pp. 592-596 ◽  
Author(s):  
Yi Guo ◽  
Yin Zhang ◽  
Yali Sun ◽  
Yun Zhang ◽  
Hao Wu
Keyword(s):  
Sandwich Structure ◽  
Active Material ◽  
Current Collector ◽  
Lithium Sulfur Batteries ◽  
A Current ◽  
Lithium Sulfur

A sandwich-like and self-standing electrode integrating a current collector, active material and interlayer provides multifunctional polysulfide-trapping ability in lithium sulfur batteries.

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