Elemental-Sulfur-Mediated Facile Synthesis of a Covalent Triazine Framework for High-Performance Lithium-Sulfur Batteries

2016 ◽  
Vol 55 (9) ◽  
pp. 3106-3111 ◽  
Author(s):  
Siddulu Naidu Talapaneni ◽  
Tae Hoon Hwang ◽  
Sang Hyun Je ◽  
Onur Buyukcakir ◽  
Jang Wook Choi ◽  
...  
Keyword(s):  
High Performance ◽  
Elemental Sulfur ◽  
Facile Synthesis ◽  
Lithium Sulfur Batteries ◽  
Covalent Triazine Framework ◽  
Lithium Sulfur

Elemental-Sulfur-Mediated Facile Synthesis of a Covalent Triazine Framework for High-Performance Lithium-Sulfur Batteries

2016 ◽  
Vol 128 (9) ◽  
pp. 3158-3163 ◽  
Author(s):  
Siddulu Naidu Talapaneni ◽  
Tae Hoon Hwang ◽  
Sang Hyun Je ◽  
Onur Buyukcakir ◽  
Jang Wook Choi ◽  
...  
Keyword(s):  
High Performance ◽  
Elemental Sulfur ◽  
Facile Synthesis ◽  
Lithium Sulfur Batteries ◽  
Covalent Triazine Framework ◽  
Lithium Sulfur

scholarly journals Fabrication of a Covalent Triazine Framework Functional Interlayer for High-Performance Lithium–Sulfur Batteries

Nanomaterials ◽  
2022 ◽  
Vol 12 (2) ◽  
pp. 255
Author(s):  
Ben Hu ◽  
Bing Ding ◽  
Chong Xu ◽  
Zengjie Fan ◽  
Derong Luo ◽  
...  
Keyword(s):  
Electronic Transport ◽  
High Performance ◽  
Capacity Fading ◽  
Transport Pathway ◽  
One Dimensional ◽  
Strong Adsorption ◽  
Lithium Sulfur Batteries ◽  
Covalent Triazine Framework ◽  
Adsorption Capability ◽  
Lithium Sulfur

The shuttling effect of polysulfides is one of the major problems of lithium–sulfur (Li–S) batteries, which causes rapid capacity fading during cycling. Modification of the commercial separator with a functional interlayer is an effective strategy to address this issue. Herein, we modified the commercial Celgard separator of Li–S batteries with one-dimensional (1D) covalent triazine framework (CTF) and a carbon nanotube (CNT) composite as a functional interlayer. The intertwined CTF/CNT can provide a fast lithium ionic/electronic transport pathway and strong adsorption capability towards polysulfides. The Li–S batteries with the CTF/CNT/Celgard separator delivered a high initial capacity of 1314 mAh g−1 at 0.1 C and remained at 684 mAh g−1 after 400 cycles−1 at 1 C. Theoretical calculation and static-adsorption experiments indicated that the triazine ring in the CTF skeleton possessed strong adsorption capability towards polysulfides. The work described here demonstrates the potential for CTF-based permselective membranes as separators in Li–S batteries.

Facile synthesis of porous Co3O4 nanoflakes as an interlayer for high performance lithium–sulfur batteries

2020 ◽  
Vol 49 (17) ◽  
pp. 5677-5683 ◽  
Author(s):  
Xiao-Xiao Zheng ◽  
Shi-Xi Zhao ◽  
Jin-Lin Yang ◽  
Yi-Ming Lu ◽  
Qi-Long Wu ◽  
...  
Keyword(s):  
High Performance ◽  
Synergistic Effects ◽  
Facile Synthesis ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Co3O4 nanoflakes were fabricated using oil bath and calcination methods. Lithium–sulfur batteries with Co3O4–super P interlayer exhibited better performance attributed to the synergistic effects of Co3O4–super P.

Substituting copolymeric poly(alkylenetetrasulfide) for elemental sulfur to diminish the shuttling effect of modified intermediate polysulfides for high-performance lithium–sulfur batteries

2019 ◽  
Vol 55 (26) ◽  
pp. 3729-3732 ◽  
Author(s):  
He Zhou ◽  
Faqi Yu ◽  
Min Wei ◽  
Yunlan Su ◽  
Yuchen Ma ◽  
...  
Keyword(s):  
High Performance ◽  
Elemental Sulfur ◽  
Experimental Tests ◽  
First Principle ◽  
First Principle Calculations ◽  
Lithium Sulfur Batteries ◽  
Copolymer Poly ◽  
Lithium Sulfur

Substituting linear copolymer poly(methylenetetrasulfide) for molecular S8 could introduce one or two –CH2– units in-between the S–S bond of an intermediate polysulfide, proved by both experimental tests and first-principle calculations.

Facile synthesis of Ti4O7 on hollow carbon spheres with enhanced polysulfide binding for high-performance lithium–sulfur batteries

2019 ◽  
Vol 7 (17) ◽  
pp. 10494-10504 ◽  
Author(s):  
Fang Wang ◽  
Xian Ding ◽  
Ruyue Shi ◽  
Miaoran Li ◽  
Yimin Lei ◽  
...  
Keyword(s):  
High Performance ◽  
Reversible Capacity ◽  
Reduction Reaction ◽  
Carbon Spheres ◽  
Facile Synthesis ◽  
Lithium Sulfur Batteries ◽  
Hollow Carbon ◽  
Hollow Carbon Spheres ◽  
Lithium Sulfur ◽  
Carbothermal Reduction Reaction

Ti4O7 nanoparticles grown on hollow carbon spheres through the carbothermal reduction reaction exhibit high sulfur loading, superior reversible capacity and favorable cycling stability.

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