Effect of Fluoroethylene Carbonate on Electrochemical Performances of Lithium Electrodes and Lithium-Sulfur Batteries

2013 ◽  
Vol 160 (6) ◽  
pp. A873-A881 ◽  
Author(s):  
Ju-Hye Song ◽  
Jin-Tak Yeon ◽  
Jun-Yeong Jang ◽  
Jung-Gu Han ◽  
Sang-Min Lee ◽  
...  
Keyword(s):  
Electrochemical Performances ◽  
Lithium Sulfur Batteries ◽  
Fluoroethylene Carbonate ◽  
Lithium Sulfur

Separator modified by Ketjen black for enhanced electrochemical performance of lithium–sulfur batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (17) ◽  
pp. 13680-13685 ◽  
Author(s):  
Di Zhao ◽  
Xinye Qian ◽  
Lina Jin ◽  
Xiaolong Yang ◽  
Shanwen Wang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Cathode Side ◽  
Electrochemical Performances ◽  
Lithium Sulfur Batteries ◽  
Enhanced Electrochemical Performance ◽  
Lithium Sulfur

A routine separator modified by a Ketjen black (KB) layer on the cathode side has been investigated to improve the electrochemical performances of Li–S batteries.

Functionalized N-doped hollow carbon spheres as sulfur host with enhanced electrochemical performances of lithium-sulfur batteries

Ionics ◽  
2018 ◽  
Vol 25 (2) ◽  
pp. 503-511 ◽  
Author(s):  
Xiaoping Li ◽  
Zhenghui Pan ◽  
Zihao Li ◽  
Yaotang Zhong ◽  
Xianshu Wang ◽  
...  
Keyword(s):  
Electrochemical Performances ◽  
Carbon Spheres ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Hollow Carbon ◽  
Hollow Carbon Spheres ◽  
Lithium Sulfur

Constructing Multi-functional Composite Separator of PVDF-HFP/h-BN supported Co-CNF membrane for Lithium-Sulfur Batteries

2022 ◽  
Author(s):  
Xin Liang ◽  
Lulu Wang ◽  
Yang Wang ◽  
Yongchao Liu ◽  
Yi Sun ◽  
...  
Keyword(s):  
Electrochemical Performances ◽  
Functional Design ◽  
Functional Composite ◽  
Lithium Sulfur Batteries ◽  
Composite Separator ◽  
Lithium Sulfur

Functional design of separator has been proved to be one of the most efficient methods to improve electrochemical performances of lithium-sulfur batteries. In this work, a multifunctional separator with gradual...

Enabling effective polysulfide trapping and high sulfur loading via a pyrrole modified graphene foam host for advanced lithium–sulfur batteries

2017 ◽  
Vol 5 (16) ◽  
pp. 7309-7315 ◽  
Author(s):  
Kun Zhang ◽  
Keyu Xie ◽  
Kai Yuan ◽  
Wei Lu ◽  
Shitian Hu ◽  
...  
Keyword(s):  
Electrochemical Performances ◽  
Chemical Absorption ◽  
Graphene Foam ◽  
3D Graphene ◽  
Lithium Sulfur Batteries ◽  
Physical Entrapment ◽  
Modified Graphene ◽  
Lithium Sulfur ◽  
High Sulfur Loading

A Py-GF@S cathode with high sulfur loading has been synthesized and it displays excellent electrochemical performances via chemical absorption by pyrrole and physical entrapment of polysulfides by 3D graphene foam.

Metal–organic framework derived yolk–shell NiS2/carbon spheres for lithium–sulfur batteries with enhanced polysulfide redox kinetics

2019 ◽  
Vol 55 (22) ◽  
pp. 3243-3246 ◽  
Author(s):  
Yaxi Tian ◽  
Huawen Huang ◽  
Guoxue Liu ◽  
Ran Bi ◽  
Lei Zhang
Keyword(s):  
Shell Structure ◽  
Metal Organic Framework ◽  
Electrochemical Performances ◽  
Carbon Spheres ◽  
Redox Kinetics ◽  
Lithium Sulfur Batteries ◽  
Metal Organic ◽  
Kinetics Of ◽  
Lithium Sulfur ◽  
Organic Framework

A yolk–shell NiS2/C–S cathode exhibits enhanced electrochemical performances in lithium–sulfur batteries due to the improved redox kinetics of polysulfide confined within the yolk–shell structure.

Metal hydroxide – a new stabilizer for the construction of sulfur/carbon composites as high-performance cathode materials for lithium–sulfur batteries

2015 ◽  
Vol 3 (33) ◽  
pp. 17106-17112 ◽  
Author(s):  
Xiao-qing Niu ◽  
Xiu-li Wang ◽  
Dong-huang Wang ◽  
Yi Li ◽  
Yi-jun Zhang ◽  
...  
Keyword(s):  
Cathode Materials ◽  
High Performance ◽  
Rational Design ◽  
Metal Hydroxide ◽  
Carbon Composites ◽  
Electrochemical Performances ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Due to the rational design, the Co(OH)2@S/CCB electrode exhibits enhanced electrochemical performances compared with the bare S/CCB electrode.

NiCo2S4/S Composites Used as Cathode Materials in Lithium-Sulfur Batteries with High Performance

NANO ◽  
2021 ◽  
pp. 2150029
Author(s):  
Qian Zhang ◽  
Renxia Zhu ◽  
Chenyu Zhao ◽  
Runze Fan ◽  
Yong Zhang ◽  
...  
Keyword(s):  
High Performance ◽  
High Current Density ◽  
Coulombic Efficiency ◽  
Specific Capacity ◽  
Volumetric Strain ◽  
Electrochemical Performances ◽  
Discharge Process ◽  
Strong Adsorption ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Application of lithium-sulfur battery has been limited due to polysulfide dissolution, the insulating nature of sulfur and the volumetric strain produced during charge and discharge process. To improve the performance of Li-S batteries, two kinds of bimetallic sulfides of NiCo2S4 with flaky (F-NiCo2S4) and sea urchin-like (S-NiCo2S4) structures were synthesized by using simple hydrothermal method, which were used as sulfur carriers in lithium-sulfur batteries and showed excellent electrochemical properties. At 0.2[Formula: see text]C, both electrodes of F-NiCo2S4/S and S-NiCo2S4/S have high pristine discharge specific capacities of 986[Formula: see text]mAh[Formula: see text]g[Formula: see text] and 959[Formula: see text]mAh[Formula: see text]g[Formula: see text]. At high current density of 4[Formula: see text]C, the F-NiCo2S4/S electrode still has a high pristine discharge specific capacity of 673[Formula: see text]mAh[Formula: see text]g[Formula: see text] and a coulombic efficiency of 97.00%. The specific capacity can remain at 526[Formula: see text]mAh[Formula: see text]g[Formula: see text] with a low average attenuation of 0.17% even after 130 cycles. The excellent electrochemical performances of the cathode material can be ascribed to the synergistic effect of tubular morphology, good electrical conductivity and strong adsorption ability of NiCo2S4 matrix for polysulfide. The job provides a new scheme and material for application of lithium-sulfur batteries with high performance.

Two-dimensional Nafion nanoweb anion-shield for improved electrochemical performances of lithium–sulfur batteries

2016 ◽  
Vol 4 (29) ◽  
pp. 11203-11206 ◽  
Author(s):  
Joo Hyun Kim ◽  
Junghyun Choi ◽  
Jihoon Seo ◽  
Jiseok Kwon ◽  
Ungyu Paik
Keyword(s):  
Electrochemical Performances ◽  
Two Dimensional ◽  
Effective Strategy ◽  
Sulfur Cathode ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

We first demonstrate a facile and effective strategy to directly deposit a Nafion nanoweb onto a sulfur cathode to address the challenges underlying in Li–S batteries.

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