Results 281 to 290 of about 9,543 (327)

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

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

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

A Polysulfide‐Immobilizing Polymer Retards the Shuttling of Polysulfide Intermediates in Lithium–Sulfur Batteries

Advanced Materials, 2018
AbstractLithium–sulfur batteries are regarded as one of the most promising candidates for next‐generation rechargeable batteries. However, the practical application of lithium–sulfur (Li–S) batteries is seriously impeded by the notorious shuttling of soluble polysulfide intermediates, inducing a low utilization of active materials, severe self ...
Shuibin Tu, Xiang Chen, Xinxin Zhao, Mingren Cheng, Peixun Xiong, Yongwu He, Qiang Zhang, Yunhua Xu   +7 more
openaire   +2 more sources

Formation of lithium polysulfides in aprotic media

Journal of Inorganic and Nuclear Chemistry, 1977
Abstract The formation of Li 2 S n in certain aprotic media can be accomplished either by electrochemical reduction of S 8 or by direct in situ reaction of S 8 with Li or Li 2 S. Polysulfide solubilities and spectra vary widely in different solvents as a result of solvent-solute interactions. A requirement for high polysulfide concentration is
R.D. Rauh, F.S. Shuker, J.M. Marston, S.B. Brummer   +3 more
openaire   +1 more source

Effect of Lithium Polysulfide As Electrolyte Additive in Lithium Sulfur Batteries

ECS Meeting Abstracts, 2014
Recently, the lithium–sulfur battery is considered as a high-energy-density storage and power device for sustainable electric vehicles (EVs) due to its high theoretical energy density and natural abundanc.1 However, there are some drawbacks to introduce this battery into commercial devices.
D. J. Lee, H. D. Shin, S. K. Lee, J. H. Park, AGOSTINI, MARCO, HASSOUN, JUSEF, SCROSATI, Bruno, Y. K. S.u.n.   +7 more
openaire   +3 more sources

Grafting and Depositing Lithium Polysulfides on Cathodes for Cycling Stability of Lithium–Sulfur Batteries

ACS Applied Materials & Interfaces, 2021
Based on dissolution/deposition chemistry, together with multielectron redox reactions, lithium-sulfur (Li-S) batteries have been demonstrated as a promising energy storage system. However, the diffusion of soluble lithium polysulfide intermediates (LiPSs) to bulk electrolyte results in the fast capacity fade of a Li-S cell.
Junfeng Wu, Bohai Zhang, Jing Liu, Sheng Liu, Tianying Yan, Xueping Gao   +5 more
openaire   +2 more sources

Direct Visualization of Lithium Polysulfides and Their Suppression in Liquid Electrolyte

Nano Letters, 2020
Understanding of lithium polysulfide (Li-PS) formation and the shuttle phenomenon is essential for practical application of the lithium/sulfur (Li/S) cell, which has superior theoretical specific energy (2600 Wh/kg). However, it suffers from the lack of direct observation on behaviors of soluble Li-PS in liquid electrolytes.
Hyeon Kook Seo, Yoon Hwa, Joon Ha Chang, Jae Yeol Park, Jae Sang Lee, Jungjae Park, Elton J. Cairns, Jong Min Yuk   +7 more
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