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.

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

scholarly journals MnO2-Coated Dual Core–Shell Spindle-Like Nanorods for Improved Capacity Retention of Lithium–Sulfur Batteries

2020 ◽  
Vol 4 (2) ◽  
pp. 42 ◽  
Author(s):  
Hamza Dunya ◽  
Maziar Ashuri ◽  
Dana Alramahi ◽  
Zheng Yue ◽  
Kamil Kucuk ◽  
...  
Keyword(s):  
High Performance ◽  
Synergistic Effects ◽  
Coulombic Efficiency ◽  
Rate Capability ◽  
Core Shell ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Hollow Carbon ◽  
Dual Core ◽  
Lithium Sulfur

The emerging need for high-performance lithium–sulfur batteries has motivated many researchers to investigate different designs. However, the polysulfide shuttle effect, which is the result of dissolution of many intermediate polysulfides in electrolyte, has still remained unsolved. In this study, we have designed a sulfur-filled dual core–shell spindle-like nanorod structure coated with manganese oxide (S@HCNR@MnO2) to achieve a high-performance cathode for lithium–sulfur batteries. The cathode showed an initial discharge capacity of 1661 mA h g−1 with 80% retention of capacity over 70 cycles at a 0.2C rate. Furthermore, compared with the nanorods without any coating (S@HCNR), the MnO2-coated material displayed superior rate capability, cycling stability, and Coulombic efficiency. The synergistic effects of the nitrogen-doped hollow carbon host and the MnO2 second shell are responsible for the improved electrochemical performance of this nanostructure.

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.

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
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