Vanadium based carbide–oxide heterogeneous V2O5@V2C nanotube arrays for high-rate and long-life lithium–sulfur batteries

Nanoscale ◽  
2020 ◽  
Vol 12 (36) ◽  
pp. 18950-18964
Author(s):  
Zhenguo Wang ◽  
Ke Yu ◽  
Shijing Gong ◽  
Erwei Du ◽  
Ziqiang Zhu
Keyword(s):  
High Rate ◽  
Nanotube Arrays ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Long Life ◽  
Lithium Sulfur

V2O5 nanotube arrays were grown on V2C nanosheets to suppress the shuttle effect and extend the life of lithium–sulfur batteries.

Frogspawn inspired hollow Fe3C@N–C as an efficient sulfur host for high-rate lithium–sulfur batteries

Nanoscale ◽  
2019 ◽  
Vol 11 (44) ◽  
pp. 21532-21541 ◽  
Author(s):  
Huaiyue Zhang ◽  
Hongtao Cui ◽  
Jing Li ◽  
Yuanyuan Liu ◽  
Yanzhao Yang ◽  
...  
Keyword(s):  
High Rate ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Long Life ◽  
Lithium Sulfur

A hollow Fe3C@N–C with frogspawn-like architecture was successfully constructed as an efficient sulfur host for high-rate and long-life lithium–sulfur batteries.

Laminar MXene-Nafion-modified separator with highly inhibited shuttle effect for long-life lithium–sulfur batteries

2019 ◽  
Vol 320 ◽  
pp. 134558 ◽  
Author(s):  
Jingtao Wang ◽  
Pengfei Zhai ◽  
Tongkun Zhao ◽  
Mengjia Li ◽  
Zhihao Yang ◽  
...  
Keyword(s):  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Long Life ◽  
Lithium Sulfur ◽  
Modified Separator

scholarly journals Construction of Electrocatalytic and Heat-Resistant Self-Supporting Electrodes for High-Performance Lithium–Sulfur Batteries

2019 ◽  
Vol 11 (1) ◽  
Author(s):  
Xuemei Zhang ◽  
Yunhong Wei ◽  
Boya Wang ◽  
Mei Wang ◽  
Yun Zhang ◽  
...  
Keyword(s):  
Elevated Temperature ◽  
High Performance ◽  
Structural Engineering ◽  
Utilization Efficiency ◽  
High Rate ◽  
Shuttle Effect ◽  
Electrocatalytic Effect ◽  
Lithium Sulfur Batteries ◽  
Engineering Strategy ◽  
Lithium Sulfur

Abstract Boosting the utilization efficiency of sulfur electrodes and suppressing the “shuttle effect” of intermediate polysulfides remain the critical challenge for high-performance lithium–sulfur batteries (LSBs). However, most of reported sulfur electrodes are not competent to realize the fast conversion of polysulfides into insoluble lithium sulfides when applied with high sulfur loading, as well as to mitigate the more serious shuttle effect of polysulfides, especially when worked at an elevated temperature. Herein, we reported a unique structural engineering strategy of crafting a unique hierarchical multifunctional electrode architecture constructed by rooting MOF-derived CoS2/carbon nanoleaf arrays (CoS2–CNA) into a nitrogen-rich 3D conductive scaffold (CTNF@CoS2–CNA) for LSBs. An accelerated electrocatalytic effect and improved polysulfide redox kinetics arising from CoS2–CNA were investigated. Besides, the strong capillarity effect and chemisorption of CTNF@CoS2–CNA to polysulfides enable high loading and efficient utilization of sulfur, thus leading to high-performance LIBs performed not only at room temperature but also up to an elevated temperature (55 °C). Even with the ultrahigh sulfur loading of 7.19 mg cm−2, the CTNF@CoS2–CNA/S cathode still exhibits high rate capacity at 55 °C.

Highly Dispersed Catalytic Co3S4 among a Hierarchical Carbon Nanostructure for High-Rate and Long-Life Lithium–Sulfur Batteries

ACS Nano ◽  
2019 ◽  
Vol 13 (4) ◽  
pp. 3982-3991 ◽  
Author(s):  
Hui Zhang ◽  
Mingchu Zou ◽  
Wenqi Zhao ◽  
Yunsong Wang ◽  
Yijun Chen ◽  
...  
Keyword(s):  
High Rate ◽  
Carbon Nanostructure ◽  
Lithium Sulfur Batteries ◽  
Highly Dispersed ◽  
Long Life ◽  
Hierarchical Carbon ◽  
Lithium Sulfur

Synthesis of carbon nanoflake/sulfur arrays as cathode materials of lithium-sulfur batteries

2018 ◽  
Vol 11 (06) ◽  
pp. 1840001 ◽  
Author(s):  
Fan Wang ◽  
Xinqi Liang ◽  
Minghua Chen ◽  
Xinhui Xia
Keyword(s):  
Cathode Materials ◽  
Cycling Performance ◽  
High Rate ◽  
Synthetic Method ◽  
Sulfur Cathode ◽  
Dual Roles ◽  
High Quality ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

It is of great importance to develop high-quality carbon/sulfur cathode for lithium-sulfur batteries (LSBs). Herein, we report a facile strategy to embed sulfur into interconnected carbon nanoflake matrix forming integrated electrode. Interlinked carbon nanoflakes have dual roles not only as a highly conductive matrix to host sulfur, but also act as blocking barriers to suppress the shuttle effect of intermediate polysulfides. In the light of these positive characteristics, the obtained carbon nanoflake/S cathode exhibit good LSBs performances with high capacities (1117[Formula: see text]mAh[Formula: see text]g[Formula: see text] at 0.2[Formula: see text]C, and 741[Formula: see text]mAh[Formula: see text]g[Formula: see text] at 0.6[Formula: see text]C) and good high-rate cycling performance. Our synthetic method provides a novel way to construct enhanced carbon/sulfur cathode for LSBs.

A yolk–shell Fe3O4@void@carbon nanochain as shuttle effect suppressive and volume-change accommodating sulfur host for long-life lithium–sulfur batteries

Nanoscale ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 7744-7750
Author(s):  
Ting Zhou ◽  
Zihan Shen ◽  
Yong Wu ◽  
Tianli Han ◽  
Mengfei Zhu ◽  
...  
Keyword(s):  
Volume Change ◽  
Carbon Shell ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Long Life ◽  
Lithium Sulfur

A yolk–shell Fe3O4@S@C nanochain in which sulfur is encapsulated between the Fe3O4 core and the carbon shell is developed for Li–S batteries.

scholarly journals Sulfur-Embedded Activated Multichannel Carbon Nanofiber Composites for Long-Life, High-Rate Lithium-Sulfur Batteries

2016 ◽  
Vol 7 (5) ◽  
pp. 1601943 ◽  
Author(s):  
Jun Seop Lee ◽  
Wooyoung Kim ◽  
Jyongsik Jang ◽  
Arumugam Manthiram
Keyword(s):  
Carbon Nanofiber ◽  
High Rate ◽  
Lithium Sulfur Batteries ◽  
Long Life ◽  
Lithium Sulfur
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