Hierarchical Carbon with High Nitrogen Doping Level: A Versatile Anode and Cathode Host Material for Long-Life Lithium-Ion and Lithium–Sulfur Batteries

2016 ◽  
Vol 8 (16) ◽  
pp. 10274-10282 ◽  
Author(s):  
Christian Reitz ◽  
Ben Breitung ◽  
Artur Schneider ◽  
Di Wang ◽  
Martin von der Lehr ◽  
...  
Keyword(s):  
Doping Level ◽  
Nitrogen Doping ◽  
Lithium Ion ◽  
Host Material ◽  
High Nitrogen ◽  
Lithium Sulfur Batteries ◽  
Long Life ◽  
Hierarchical Carbon ◽  
Lithium Sulfur

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

scholarly journals Microporous Carbon Nanoparticles for Lithium–Sulfur Batteries

Nanomaterials ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 2012
Author(s):  
Hui-Ju Kang ◽  
Gazi A. K. M. Rafiqul Bari ◽  
Tae-Gyu Lee ◽  
Tamal Tahsin Khan ◽  
Jae-Woo Park ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Synthesis Method ◽  
Eutectic Mixture ◽  
Lithium Ion ◽  
Inert Atmosphere ◽  
Host Material ◽  
Retention Capacity ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Lithium Sulfur

Rechargeable lithium–sulfur batteries (LSBs) are emerging as some of the most promising next-generation battery alternatives to state-of-the-art lithium-ion batteries (LIBs) due to their high gravimetric energy density, being inexpensive, and having an abundance of elemental sulfur (S8). However, one main, well-known drawback of LSBs is the so-called polysulfide shuttling, where the polysulfide dissolves into organic electrolytes from sulfur host materials. Numerous studies have shown the ability of porous carbon as a sulfur host material. Porous carbon can significantly impede polysulfide shuttling and mitigate the insulating passivation layers, such as Li2S, owing to its intrinsic high electrical conductivity. This work suggests a scalable and straightforward one-step synthesis method to prepare a unique interconnected microporous and mesoporous carbon framework via salt templating with a eutectic mixture of LiI and KI at 800 °C in an inert atmosphere. The synthesis step used environmentally friendly water as a washing solvent to remove salt from the carbon–salt mixture. When employed as a sulfur host material, the electrode exhibited an excellent capacity of 780 mAh g−1 at 500 mA g−1 and a sulfur loading mass of 2 mg cm−2 with a minor capacity loss of 0.36% per cycle for 100 cycles. This synthesis method of a unique porous carbon structure could provide a new avenue for the development of an electrode with a high retention capacity and high accommodated sulfur for electrochemical energy storage applications.

Mechanism investigation of iron selenide as polysulfide mediator for long-life lithium-sulfur batteries

2021 ◽  
pp. 129166
Author(s):  
Weiwei Sun ◽  
Yujie Li ◽  
Shuangke Liu ◽  
Chang Liu ◽  
Xiaojian Tan ◽  
...  
Keyword(s):  
Iron Selenide ◽  
Lithium Sulfur Batteries ◽  
Long Life ◽  
Lithium Sulfur

scholarly journals Effective ion pathways and 3D conductive carbon networks in bentonite host enable stable and high-rate lithium–sulfur batteries

2021 ◽  
Vol 10 (1) ◽  
pp. 20-33
Author(s):  
Lian Wu ◽  
Yongqiang Dai ◽  
Wei Zeng ◽  
Jintao Huang ◽  
Bing Liao ◽  
...  
Keyword(s):  
Network Architecture ◽  
High Performance ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
High Rate ◽  
Lithium Sulfur Batteries ◽  
Carbon Networks ◽  
Carbon Coated ◽  
Lithium Sulfur ◽  
Initial Capacity

Abstract Fast charge transfer and lithium-ion transport in the electrodes are necessary for high performance Li–S batteries. Herein, a N-doped carbon-coated intercalated-bentonite (Bent@C) with interlamellar ion path and 3D conductive network architecture is designed to improve the performance of Li–S batteries by expediting ion/electron transport in the cathode. The interlamellar ion pathways are constructed through inorganic/organic intercalation of bentonite. The 3D conductive networks consist of N-doped carbon, both in the interlayer and on the surface of the modified bentonite. Benefiting from the unique structure of the Bent@C, the S/Bent@C cathode exhibits a high initial capacity of 1,361 mA h g−1 at 0.2C and achieves a high reversible capacity of 618.1 m Ah g−1 at 2C after 500 cycles with a sulfur loading of 2 mg cm−2. Moreover, with a higher sulfur loading of 3.0 mg cm−2, the cathode still delivers a reversible capacity of 560.2 mA h g−1 at 0.1C after 100 cycles.

Sandwich-Type NbS2@S@I-Doped Graphene for High-Sulfur-Loaded, Ultrahigh-Rate, and Long-Life Lithium–Sulfur Batteries

ACS Nano ◽  
2017 ◽  
Vol 11 (8) ◽  
pp. 8488-8498 ◽  
Author(s):  
Zhubing Xiao ◽  
Zhi Yang ◽  
Linjie Zhang ◽  
Hui Pan ◽  
Ruihu Wang
Keyword(s):  
Lithium Sulfur Batteries ◽  
Sandwich Type ◽  
Doped Graphene ◽  
Long Life ◽  
Lithium Sulfur
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