Interfacial Design of Thick Sulfur Cathodes to Achieve High Energy Density and Stability

2021 ◽  
Author(s):  
Zijian Zheng ◽  
Yufeng Luo ◽  
Yuan Gao ◽  
Qianyi Guo
Keyword(s):  
Energy Demand ◽  
Specific Capacity ◽  
High Energy ◽  
High Energy Density ◽  
Future Technology ◽  
Theoretical Specific Capacity ◽  
Sulfur Battery ◽  
Sulfur Cathodes ◽  
Significant Attention ◽  
Lithium Sulfur

The lithium-sulfur battery (LSB) attracts significant attention to meet the ever-growing energy demand for future technology because of the high theoretical specific capacity of sulfur. To achieve the goal of...

Strategies for inhibiting anode dendrite growth in lithium–sulfur batteries

2020 ◽  
Vol 8 (9) ◽  
pp. 4629-4646 ◽  
Author(s):  
Yaqiu Luo ◽  
Linli Guo ◽  
Min Xiao ◽  
Shuanjin Wang ◽  
Shan Ren ◽  
...  
Keyword(s):  
Energy Density ◽  
Specific Capacity ◽  
High Energy ◽  
Dendrite Growth ◽  
High Energy Density ◽  
Lithium Anode ◽  
Lithium Sulfur Batteries ◽  
Theoretical Specific Capacity ◽  
Lithium Sulfur

Recently, lithium–sulfur batteries have attracted considerable attention due to their high theoretical specific capacity and high energy density. In this paper, we summarize the strategies of lithium anode improvement formulated in recent years.

scholarly journals Confine sulfur in double-hollow carbon sphere integrated with carbon nanotubes for advanced lithium–sulfur batteries

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Maru Dessie Walle ◽  
You-Nian Liu
Keyword(s):  
Carbon Nanotubes ◽  
Coulombic Efficiency ◽  
Specific Capacity ◽  
High Energy ◽  
High Energy Density ◽  
Carbon Sphere ◽  
Hollow Carbon Sphere ◽  
Lithium Sulfur Batteries ◽  
Hollow Carbon ◽  
Lithium Sulfur

AbstractThe lithium–sulfur (Li–S) batteries are promising because of the high energy density, low cost, and natural abundance of sulfur material. Li–S batteries have suffered from severe capacity fading and poor cyclability, resulting in low sulfur utilization. Herein, S-DHCS/CNTs are synthesized by integration of a double-hollow carbon sphere (DHCS) with carbon nanotubes (CNTs), and the addition of sulfur in DHCS by melt impregnations. The proposed S-DHCS/CNTs can effectively confine sulfur and physically suppress the diffusion of polysulfides within the double-hollow structures. CNTs act as a conductive agent. S-DHCS/CNTs maintain the volume variations and accommodate high sulfur content 73 wt%. The designed S-DHCS/CNTs electrode with high sulfur loading (3.3 mg cm−2) and high areal capacity (5.6 mAh mg cm−2) shows a high initial specific capacity of 1709 mAh g−1 and maintains a reversible capacity of 730 mAh g−1 after 48 cycles at 0.2 C with high coulombic efficiency (100%). This work offers a fascinating strategy to design carbon-based material for high-performance lithium–sulfur batteries.

Nitrogen-Doped Multi-Channel Carbon Nanofibers Incorporated with Nickel Nanoparticles as Multifunctional Modification of Separator for Ultra Stable Li-S Batteries

2021 ◽  
Author(s):  
Zhikang Wang ◽  
Guiqiang Cao ◽  
Da Bi ◽  
Tian-Xiong Tan ◽  
Qingxue Lai ◽  
...  
Keyword(s):  
Nickel Nanoparticles ◽  
Specific Capacity ◽  
High Energy ◽  
High Energy Density ◽  
Storage Device ◽  
Energy Storage Device ◽  
High Specific Capacity ◽  
Nitrogen Doped ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Lithium-Sulfur batteries have been regarded as the most promising electrochemical energy storage device in consideration of their satisfactory high specific capacity and high energy density. However, the inferior conversion efficiency...

Lithium Polysulfide Sparingly Solvating Electrolyte for Practical High Energy Density Lithium Sulfur Battery

2020 ◽  
Vol MA2020-02 (2) ◽  
pp. 280-280
Author(s):  
Shanglin Li ◽  
Masayoshi Watanabe ◽  
Nao Nomura ◽  
Ryoichi Tatara ◽  
Jiali Liu ◽  
...  
Keyword(s):  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Lithium Sulfur Battery ◽  
Lithium Polysulfide ◽  
Sulfur Battery ◽  
Lithium Sulfur

Electrostatic trapping of polysulfides enabled by imidazolium-based ionic polymers for high-energy-density lithium–sulfur batteries

2018 ◽  
Vol 6 (17) ◽  
pp. 7375-7381 ◽  
Author(s):  
Zhibin Cheng ◽  
Hui Pan ◽  
Zhubing Xiao ◽  
Dejian Chen ◽  
Xiaoju Li ◽  
...  
Keyword(s):  
Main Chain ◽  
High Energy ◽  
High Energy Density ◽  
Ionic Polymers ◽  
Shuttle Effect ◽  
Effective Suppression ◽  
Lithium Polysulfide ◽  
Lithium Sulfur Batteries ◽  
Sulfur Cathodes ◽  
Lithium Sulfur

A new lithium polysulfide (PS) trapping strategy based on electrostatic attraction between imidazolium groups and PSs has been demonstrated. Simple introduction of main-chain imidazolium-based ionic polymers into sulfur cathodes results in effective suppression of the PS shuttle effect, thus significantly improving cycling stability of lithium–sulfur batteries.

scholarly journals Insulator-to-metal transition of lithium–sulfur battery

RSC Advances ◽  
2017 ◽  
Vol 7 (70) ◽  
pp. 44326-44332 ◽  
Author(s):  
Yong Pan ◽  
Weiming Guan ◽  
Pengyu Mao
Keyword(s):  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Lithium Sulfur Battery ◽  
High Theoretical Capacity ◽  
Battery Material ◽  
Sulfur Battery ◽  
Lithium Sulfur

Li2S is a promising battery material due to the high theoretical capacity and high energy density.

Graphene oxide-polypyrrole composite as sulfur hosts for high-performance lithium-sulfur batteries

2018 ◽  
Vol 11 (06) ◽  
pp. 1840007 ◽  
Author(s):  
Qian Wang ◽  
Chengkai Yang ◽  
Hui Tang ◽  
Kai Wu ◽  
Henghui Zhou
Keyword(s):  
Graphene Oxide ◽  
High Performance ◽  
Density Functional ◽  
Specific Capacity ◽  
High Energy ◽  
High Energy Density ◽  
Composite Cathodes ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur ◽  
Capacity Decay

Lithium-sulfur batteries are considered as a promising candidate for the next-generation high energy density storage devices. However, they are still hindered by serious capacity decay on cycling caused by the dissolution of redox intermediates. Here, we designed a unique structure with polypyrrole (ppy) inserting into the graphene oxide (GO) sheet for accommodating sulfur. Such a sulfur host not only exhibits a good electronic and ionic conductivity, but also can suppress polysulfide dissolution effectively. With this advanced design, the composite cathode showed a high specific capacity of 548.4[Formula: see text]mA[Formula: see text]h[Formula: see text]g[Formula: see text] at 5.0 C. A stable Coulombic efficiency of [Formula: see text]99.5% and a capacity decay rate as low as 0.089% per cycle along with 300 cycles at 1.0 C were achieved for composite cathodes with 78[Formula: see text]wt.% of S. Besides, the interaction mechanism between PPy and lithium polysulfides (LPS) was investigated by density-functional theory (DFT), suggesting that only the polymerization of N atoms can bind strongly to Li ions of LPS rather than single N atoms. The 3D structure GO-PPy host with high conductivity and excellent trapping ability to LPS offered a viable strategy to design high-performance cathodes for Li–S batteries.

scholarly journals Engineering and characterization of interphases for Lithium metal anode 

2021 ◽  
Author(s):  
Zulipiya Shadike ◽  
Sha Tan ◽  
Ruoqian Lin ◽  
Xia Cao ◽  
Enyuan Hu ◽  
...  
Keyword(s):  
Energy Density ◽  
Specific Capacity ◽  
High Energy ◽  
High Energy Density ◽  
Lithium Metal ◽  
Metal Anode ◽  
Lithium Metal Anode ◽  
Battery Systems ◽  
Theoretical Specific Capacity

Lithium metal is a very promising anode material in achieving high energy density for next generation battery systems due to its low redox potential and high theoretical specific capacity of...

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