Results 91 to 100 of about 6,770 (239)

Review: Insight on Porous Carbon Positive Electrode for Sodium‐Ion Capacitors: Interplay Between Synthesis, Properties, and Performance

Advanced Science, EarlyView.
Sodium ion capacitor (SIC) is currently constrained by the low discharge capacity of commercial activated carbon as positive electrode material. This review provides a holistic summary of research efforts on alternative porous carbon materials for SIC. Image created by the authors with www.biorender.com.
Ademola Adeniji, Adrian Beda, Camélia Matei Ghimbeu   +2 more
wiley   +1 more source

Synergistic Se‐Doping and Accompanying S‐Vacancies Drive Lattice Distortion and p‐Band Modulation for Enhanced Sodium Storage in Sulfides

Advanced Science, EarlyView.
Se‐doping in sulfides facilitates the creation of S vacancies. The collaboration of Se‐doping and S vacancies not only induces lattice distortion to weaken the M─S bonds and lift the p‐band center for improved Na+ adsorption, but also increases the number of charge carriers for an improved electronic conductivity.
Chunyang Xu, Jinfeng Liu, Biao Ma, Yawen Liang, Dongdong Wang, Chengcheng Miao, Jianhua Zhu, Liu Wang, Yunfeng Chao, Xinwei Cui   +9 more
wiley   +1 more source

Synergetic Interlayer in Li‐S Batteries: Polysulfide‐Impeding Effect of Conductive Carbon Cloth Supporting Topological‐Phase Bi2Se3

ChemElectroChem
The shuttle effect and sluggish sulfur conversion kinetics hamper the development of lithium–sulfur batteries. In this study, Bi2Se3 nanosheets were grown in‐situ directly on a carbon cloth and adopted as an interlayer in lithium–sulfur batteries to ...
Heng Wang, Huichao Dong, Ting Kan, Hewei Luo, Ji Yan, Hirofumi Yoshikawa   +5 more
doaj   +1 more source

A Theoretical Study of Reactions between Polysulfides and Organic Carbonates and Raman Spectra in Lithium-Sulfur Battery [PDF]

, 2015
锂硫电池具有更高能量密度比，近年来锂硫电池研究备受关注。作为电池主要构成的一部分，电解液会显著影响电池的电化学行为。在锂硫电池工作中，如果可溶的多硫阴离子与电解液发生化学反应，将严重影响电池的循环性能。 有机碳酸酯类材料中的碳酸乙烯酯(EC)和碳酸丙烯酯(PC)常作为电解液用于电池。然而，其作为锂离子电池电解液时具有优良的循环性能，但在作为锂硫电池电解液时却使电池循环性能变差。不同的研究者对此现象的认识存在较大的分歧，其主要的分歧在于多硫阴离子(Sn2 ...
潘文博
core  

Investigation of the Self-Discharge Behavior of Lithium-Sulfur Batteries [PDF]

, 2016
Lithium-Sulfur (Li-S) batteries represent a perspective energy storage technology, which reaches very high theoretical limits in terms of specific capacity, specific energy, and energy density.
Knap, Vaclav, Schaltz, Erik, Stroe, Daniel Loan, Swierczynski, Maciej Jozef, Teodorescu, Remus   +4 more
core   +2 more sources

Comparative Insights and Overlooked Factors of Interphase Chemistry in Alkali Metal‐Ion Batteries

Advanced Energy Materials, EarlyView.
This review presents a comparative analysis of Li‐, Na‐, and K‐ion batteries, focusing on the critical role of electrode–electrolyte interphases. It especially highlights overlooked aspects such as SEI/CEI misconceptions, binder effects, and self‐discharge relevance, emphasizing the limitations of current understanding and offering strategies for ...
Changhee Lee, Zachary T. Gossage, Shinichi Kumakura, Shinichi Komaba   +3 more
wiley   +1 more source

An ultrathin and crack‐free metal‐organic framework film for effective polysulfide inhibition in lithium–sulfur batteries

Interdisciplinary Materials
Due to their extensive microporous structure, metal‐organic frameworks (MOFs) find widespread application in constructing modification layers, functioning as ion sieves.
Cheng Zhou, Chenxu Dong, Weixiao Wang, Yu Tian, Chunli Shen, Kaijian Yan, Liqiang Mai, Xu Xu   +7 more
doaj   +1 more source

Impact of Moisture Exposure on Thermal Stability and Safety of Solid‐State Batteries

Advanced Energy Materials, EarlyView.
Sulfide‐based solid‐state batteries (SSBs) hold significant potential for next‐generation energy storage, yet their practical deployment is hindered by the moisture sensitivity of sulfide solid electrolytes. This study examines how moisture exposure influences thermo‐electrochemical instability at the material and cell‐level, and underscores the ...
Md Toukir Hasan, Alvaro J. Miguel, Bairav S. Vishnugopi, Abhinanda Sengupta, Avijit Karmakar, Gordon H. Waller, Corey T. Love, Partha P. Mukherjee   +7 more
wiley   +1 more source

A compact inorganic layer for robust anode protection in lithium‐sulfur batteries

InfoMat, 2020
Lithium‐sulfur (Li‐S) batteries are one of the most promising candidates for high energy density rechargeable batteries beyond current Li‐ion batteries.
Yu‐Xing Yao, Xue‐Qiang Zhang, Bo‐Quan Li, Chong Yan, Peng‐Yu Chen, Jia‐Qi Huang, Qiang Zhang   +6 more
doaj   +1 more source

Depth‐of‐Discharge‐Dependent Chemical Evolution in Sulfurized Polyacrylonitrile Cathodes for Ether‐Based Room‐Temperature Sodium–Sulfur Batteries

Advanced Energy Materials, EarlyView.
Sulfurized polyacrylonitrile (SPAN) is investigated as a cathode for room‐temperature Na–S batteries in ether‐based electrolytes under controlled discharge depths. Depth‐of‐discharge‐dependent structural evolution reveals that deep discharge below 1.0 V destabilizes SPAN structure, alters polysulfide equilibria, and promotes sodium dendrite formation ...
Liwen Yang, Angelina Sarapulova, Bercis Pektas, Rong Li, Hatice Mutlu, Sonia Dsoke   +5 more
wiley   +1 more source