Results 181 to 190 of about 1,361 (213)

Suppression of Polysulfide Dissolution and Shuttling with Glutamate Electrolyte for Lithium Sulfur Batteries

ACS Nano, 2019
The lithium sulfur battery is regarded as a potential next-generation high-energy battery system. However, polysulfides dissolve and shuttle through the electrolytes, causing rapid capacity decay, serious self-discharge, and poor high-temperature performances.
Liwei Dong, Jipeng Liu, Dongjiang Chen, Yupei Han, Yifang Liang, Mengqiu Yang, Chunhui Yang, Weidong He   +7 more
openaire   +2 more sources

Polysulfides shuttling remedies by interface-catalytic effect of Mn3O4-MnPx heterostructure

Energy Storage Materials, 2021
Abstract Lithium-sulfur batteries (Li-S batteries) have attracted considerable attentions for the low cost and high theoretical energy density of sulfur. However, the Li-S batteries often undergo rapid degradation due to the severe “shuttle effect”, sluggish redox kinetics, and the insulator nature of sulfur.
Kai Guo, Gan Qu, Jin Li, Huicong Xia, Wenfu Yan, Jianwei Fu, Pengfei Yuan, Jianan Zhang   +7 more
openaire   +1 more source

Stepwise Electrocatalysis as a Strategy against Polysulfide Shuttling in Li–S Batteries

ACS Nano, 2019
Most issues with Li-S batteries are caused by the slowness of the multielectron sulfur electrochemical reaction resulting in the loss of sulfur as soluble polysulfides to the electrolyte and the redox shuttling of polysulfides between the cathode and anode during battery charge and discharge.
Hualin Ye, Jianguo Sun, Shengliang Zhang, Haibin Lin, Tianran Zhang, Qiaofeng Yao, Jim Yang Lee   +6 more
openaire   +2 more sources

Mitigation of Polysulfide Shuttling by Interlayer/Permselective Separators in Lithium–Sulfur Batteries

ACS Applied Energy Materials, 2020
A lithium–sulfur batteries system has been identified as a potential successor to lithium-ion batteries owing to its appealing properties such as extremely high theoretical specific capacity, energ...
Shruti Suriyakumar, A. Manuel Stephan
openaire   +1 more source

Functionalized bacterial cellulose as a separator to address polysulfides shuttling in lithium–sulfur batteries

Materials Today Energy, 2021
Abstract In lithium–sulfur batteries (LSBs), soluble long-chain polysulfide intermediates can easily shuttle between the cathode and the anode, causing rapid performance degradation. Although significant progress, through rational cathode structure and composition design, has been made to solve the polysulfide shuttling problem, this challenging ...
W. Li, S. Wang, Z. Fan, S. Li, A. Bernussi, N. Newman   +5 more
openaire   +1 more source

Mitigating Polysulfide Shuttling in Li-S Battery

2019
The energy source shortage has become a severe issue, and solving the problem with renewable and sustainable energy is the primary trend. Among the new generation energy storage, lithium-sulfur (Li-S) battery stands out for its low cost, high theoretical capacity (1,675 mAh g-1), and environmentally friendly properties.
openaire   +2 more sources

Electrocatalytic polysulfide transformation for suppressing the shuttle effect of Li-S batteries

Applied Surface Science, 2020
Abstract We report a method based on 2,4-dihydroxybenzoic acid-formaldehyde (RF-COOH) microsphere hard templates to prepare core-shelled Fe2O3 microspheres, which were then added to graphene oxide to obtain hierarchical reduced graphene oxide, ultimately dropping Fe2O3 (Fe2O3@rGO) by Vitamin C reduction and freeze drying.
Tiancheng Na, Yang Liu, Xiangcun Li, Wenji Zheng, Yan Dai, Zhijun Yan, Wei Kou, Gaohong He   +7 more
openaire   +1 more source

Physical Field Effects to Suppress Polysulfide Shuttling in Lithium–Sulfur Battery

Advanced Materials
AbstractLithium–sulfur batteries (LSB) with high theoretical energy density are plagued by the infamous shuttle effect of lithium polysulfide (LPS) and the sluggish sulfur reduction/evolution reaction. Extensive research is conducted on how to suppress shuttle effects, including physical structure confinement engineering, chemical adsorption strategy ...
Junan Feng, Chuan Shi, Xiaoxian Zhao, Ying Zhang, Shuangqiang Chen, Xinbing Cheng, Jianjun Song   +6 more
openaire   +2 more sources

MoS2 coated separator as an efficient barrier for inhibiting shuttle effect of polysulfide

Ceramics International, 2019
Abstract Functional separators have become one of the hot topics for improving the electrochemical performance of the Li-S batteries. This is mainly due to the positive effect of the functional separators for efficiently inhibiting the shuttle effect of soluble polysulfide.
Shoufa Liu, Zhaofeng Zhou, Dancheng Liu
openaire   +1 more source

Discretized Analysis of Polysulfide Shuttle Dynamics in Lithium-Sulfur Batteries

Journal of The Electrochemical Society
The polysulfide shuttle effect remains a fundamental challenge in lithium-sulfur batteries, particularly for high-energy-density applications where conventional mitigation strategies prove insufficient. Here, we introduce a state-resolved methodology for quantifying shuttle current by analyzing Coulombic efficiency across discretized charging blocks ...
Saeme Motevalian, Aqsa Nazir, Anil Pathak, Georgina Jahan, Dambar Hamal, Bilal El-Zahab   +5 more
openaire   +1 more source