Results 201 to 210 of about 6,770 (239)

Self‐Assembled Networks for Regulating Lithium Polysulfides in Lithium‐Sulfur Batteries

ChemSusChem, 2022
AbstractInhibiting the shuttle effect caused by soluble lithium polysulfides (LiPSs) is of importance for lithium‐sulfur (Li−S) batteries. Here, a strategy was developed to construct protective layers by self‐assembly networks to regulate the LiPSs. 2,5‐Dichloropyridine (25DCP) holds two kinds of functional groups.
Zhihua Wang, Yilin Liu, Junze Ni, Yingying You, Yingying Cai, Hanping Zhang   +5 more
openaire   +2 more sources

Thermodynamic aspect of sulfur, polysulfide anion and lithium polysulfide: plausible reaction path during discharge of lithium–sulfur battery

Physical Chemistry Chemical Physics, 2021
The discharge voltage of reactions for formation of Li2Sn from S8 is higher than that for formation of Li2S from Li2Sn.
Seiji Tsuzuki, Tomoaki Kaneko, Keitaro Sodeyama, Yasuhiro Umebayashi, Wataru Shinoda, Shiro Seki, Kazuhide Ueno, Kaoru Dokko, Masayoshi Watanabe   +8 more
openaire   +2 more sources

Design considerations for lithium–sulfur batteries: mass transport of lithium polysulfides

Nanoscale, 2020
The mass transport of soluble LiPSs is a significant important factor determining the performance of sulfur cathode. The effect of mass transport was clearly elucidated.
Seong-Jun Kim, Yunseo Jeoun, Jungjin Park, Seung-Ho Yu, Yung-Eun Sung   +4 more
openaire   +2 more sources

Anode‐Free Lithium–Sulfur Cells Enabled by Rationally Tuning Lithium Polysulfide Molecules

Angewandte Chemie, 2022
AbstractThe two major barriers of practical lithium–sulfur batteries are the poor reversibility of lithium‐metal anode and sluggish kinetics of sulfur cathode. Here, we report a simple yet cogent, molecular tailoring approach for lithium polysulfides, enabling a synergistic enhancement of anode reversibility and cathode kinetics.
Yuxun Ren, Amruth Bhargav, Woochul Shin, Hyunki Sul, Arumugam Manthiram   +4 more
openaire   +2 more sources

Chemical Immobilization Effect on Lithium Polysulfides for Lithium–Sulfur Batteries

Small, 2017
AbstractDespite great progress in lithium–sulfur batteries (LSBs), great obstacles still exist to achieve high loading content of sulfur and avoid the loss of active materials due to the dissolution of the intermediate polysulfide products in the electrolyte.
Caixia Li, Zhucong Xi, Dexiang Guo, Xiangju Chen, Longwei Yin   +4 more
openaire   +2 more sources

High-power lithium polysulfide-carbon battery

Carbon, 2016
Abstract We report a lithium battery using activated carbon on gas diffusion layer (GDL) electrode as host for lithium polysulfide conversion reaction. The cell operates within 2.8 and 2.1 V and delivers a capacity ranging from 400 mAh g −1 at 1C to 150 mAh g −1 at 40C over 100 cycles.
Shin H. -D., Agostini M., Belharouak I., Hassoun J., Sun Y. -K.   +4 more
openaire   +2 more sources

Electrochemistry of a lithium electrode in lithium polysulfide solutions

Russian Journal of Electrochemistry, 2008
The effect of lithium polysulfides on the cycling of a lithium electrode and the corrosion rate of lithium cathodic deposits in sulfolane electrolytes is studied. Lithium polysulfides are found to affect the shape of polarization curves, the overpotential of electrode processes, and the cycling time.
V. S. Kolosnitsyn, E. V. Karaseva, A. L. Ivanov   +2 more
openaire   +1 more source

Three dimensional porous SiC for lithium polysulfide trapping

Physical Chemistry Chemical Physics, 2018
A series of 3D porous SiC materials with active sp2 hybridized Si atoms have been designed for lithium polysulfide retention in Li–S batteries. The shuttle effect can be effectively depressed by the strong Si⋯S interaction between Li2Sn and the 3D porous SiC hosts.
Fen Li, Jijun Zhao
openaire   +2 more sources

Kinetics of Lithium-Polysulfide Flow Batteries

ECS Meeting Abstracts, 2014
We recently demonstrated that the high solubility of polysulfides in nonaqueous electrolytes can be exploited to make a high energy density lithium-sulfur flow battery with low storage cost1–3. Here we used a new approach, whereby percolating networks of nanoscale conductor particles (in this case carbon black) are incorporated within the electrode ...
Frank Fan, William Woodford, Menghsuan Pan, Zheng Li, Kyle C. Smith, W. Craig Carter, Yet-Ming Chiang   +6 more
openaire   +1 more source

High Entropy Sulfide Nanoparticles as Lithium Polysulfide Redox Catalysts

ACS Nano, 2023
The polysulfide shuttle contributes to capacity loss in lithium-sulfur batteries, which limits their practical utilization. Materials that catalyze the complex redox reactions responsible for the polysulfide shuttle are emerging, but foundational knowledge that enables catalyst development remains limited with only a small number of catalysts ...
M. J. Theibault, Connor R. McCormick, Shuangyan Lang, Raymond E. Schaak, Hèctor D. Abruña   +4 more
openaire   +2 more sources