Review—The Importance of Chemical Interactions between Sulfur Host Materials and Lithium Polysulfides for Advanced Lithium-Sulfur Batteries

2015 ◽  
Vol 162 (14) ◽  
pp. A2567-A2576 ◽  
Author(s):  
Quan Pang ◽  
Xiao Liang ◽  
C. Y. Kwok ◽  
Linda F. Nazar
Keyword(s):  
Chemical Interactions ◽  
Host Materials ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Lithium Sulfur

Porous TiO2−x with oxygen deficiency as sulfur host for lithium–sulfur batteries

2021 ◽  
pp. 2143004
Author(s):  
Yuman Yang ◽  
Yi Zhang ◽  
Meng Yang ◽  
Xiangyu Zhao
Keyword(s):  
Oxygen Deficiency ◽  
Reversible Capacity ◽  
Polar Compounds ◽  
High Specific Surface Area ◽  
Chemical Adsorption ◽  
Sulfur Species ◽  
Host Materials ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Lithium Sulfur

The dissolution and shuttle behavior of lithium polysulfides has been considered to be one of the serious problems restricting the development of lithium−sulfur (Li–S) batteries. Polar compounds are regarded as promising sulfur host materials due to their strong chemical adsorption to lithium polysulfides. Herein, polar TiO[Formula: see text] with porous structure is employed as the sulfur host, which has a high specific surface area and provides nanoconfined space for storage and adsorption of sulfur species. As a result, the as-prepared S@TiO[Formula: see text] cathode exhibits significantly enhanced reversible capacity, cycling stability, and reaction kinetics compared to those of the as-prepared S@TiO2 cathode.

MgCo layered double hydroxide-based yolk shell polyhedrons as multifunctional sulfur mediator for lithium-sulfur batteries

2021 ◽  
Author(s):  
Kai Zhang ◽  
You Li ◽  
Hongyu Wang ◽  
Zisheng Zhang ◽  
Guihua Liu ◽  
...  
Keyword(s):  
Layered Double Hydroxide ◽  
High Discharge ◽  
Shuttle Effect ◽  
High Discharge Capacity ◽  
Host Materials ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Double Hydroxide ◽  
Areal Capacity ◽  
Lithium Sulfur

Abstract The development of efficient sulfur host materials to address the shuttle effect issues of lithium polysulfides (LiPSs) is crucial in the lithium-sulfur (Li-S) batteries, but still challenging. In the present study, a novel yolk shell structured MgCo-LDH/ZIF-67 composite is designed as Li-S battery cathode. In this composite, the shell layer is MgCo layered double hydroxide constructed by partially etching ZIF-67 nanoparticle by Mg2+, and the core is the unreacted ZIF-67 particle. The unique yolk shell structure not only provides abundant pores for sulfur accommodation, but also facilitates the electrolyte penetration and ion transport. The ZIF-67 core exhibits strong polar adsorption to LiPSs through the Lewis acid-base interactions, and the micropores/mesoporous can further trap LiPSs. Meanwhile, the MgCo-LDH shell exposes enough sulfur-philic sites for enhancing chemisorption and catalyzes the LiPSs conversion. As a result, when MgCo-LDH/ZIF-67 is used as sulfur host in the cathode, the cell achieves a high discharge capacity of 1121 mAh g-1 at 0.2 C, and an areal capacity of 5.0 mAh cm-2 under the high sulfur loading of 5.8 mg cm-2. The S/MgCo-LDH/ZIF-67 electrode holds a promising potential for the development of Li-S batteries.

Enhancing the performance of lithium–sulfur batteries by anchoring polar polymers on the surface of sulfur host materials

2016 ◽  
Vol 4 (41) ◽  
pp. 16148-16156 ◽  
Author(s):  
Manfang Chen ◽  
Xianyou Wang ◽  
Siyu Cai ◽  
Zhongyun Ma ◽  
Peng Song ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Carbon Materials ◽  
Polar Polymers ◽  
Host Materials ◽  
Excellent Electrochemical Performance ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Triton X ◽  
Lithium Sulfur ◽  
Polar Polymer

Through anchoring polar polymer Triton X-100 on carbon materials, the MAC/S manifests excellent electrochemical performance as the cathode for Li–S batteries.

A graphene-like metallic cathode host for long-life and high-loading lithium–sulfur batteries

2016 ◽  
Vol 3 (2) ◽  
pp. 130-136 ◽  
Author(s):  
Quan Pang ◽  
Dipan Kundu ◽  
Linda F. Nazar
Keyword(s):  
High Performance ◽  
Electronic Conductivity ◽  
High Loading ◽  
Host Materials ◽  
High Electronic Conductivity ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Long Life ◽  
Lithium Sulfur

Nanostructured sulfur host materials that embrace both high electronic conductivity and strong chemisorption towards polysulfides are central to enable high performance Li–S batteries.

3D pomegranate-like TiN@graphene composites with electrochemical reaction chambers as sulfur hosts for ultralong-life lithium–sulfur batteries

2019 ◽  
Vol 4 (2) ◽  
pp. 531-539 ◽  
Author(s):  
Rongjie Luo ◽  
Qiuhong Yu ◽  
Yang Lu ◽  
Mengjie Zhang ◽  
Tao Peng ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Electrochemical Reaction ◽  
Host Materials ◽  
Lithium Sulfur Batteries ◽  
Reaction Chambers ◽  
Sulfur Host ◽  
Sulfur Hosts ◽  
Lithium Sulfur

3D pomegranate-like TiN@graphene composites as novel sulfur host materials can effectively improve the electrochemical properties of Li–S systems.

Self-templated preparation of hollow mesoporous TiN microspheres as sulfur host materials for advanced lithium–sulfur batteries

2018 ◽  
Vol 53 (14) ◽  
pp. 10363-10371 ◽  
Author(s):  
Liang Chen ◽  
Weiwei Yang ◽  
Hao Zhang ◽  
Jianguo Liu ◽  
Yong Zhou
Keyword(s):  
Host Materials ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Lithium Sulfur

Sulfur nanoparticles/Ti3C2Tx MXene with optimum sulfur content as cathode for highly stable lithium-sulfur batteries

2021 ◽  
Author(s):  
Aoning Wang ◽  
Yixuan Chen ◽  
Li Liu ◽  
Xiang Liu ◽  
Zhoulu Wang ◽  
...  
Keyword(s):  
Energy Density ◽  
Titanium Carbide ◽  
Capacity Fading ◽  
Shuttle Effect ◽  
Host Materials ◽  
Lithium Polysulfide ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Lithium Sulfur ◽  
Sulfur Nanoparticles

Lithium-sulfur batteries have high theoretical energy density, but they need better sulfur host materials to retain lithium polysulfide shuttle effect which result in batteries’ capacity fading. Titanium carbide MXene (Ti3C2Tx...

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