Results 61 to 70 of about 1,381 (204)

Regulating Solvent‐Separated Ion Pairs to Control Polysulfide Redox for Fast and Stable Room‐Temperature Na‐S Batteries

Advanced Science, EarlyView.
A local high‐concentration electrolyte with tailored solvent‐separated ion pairs is pioneered to design for room‐temperature sodium‐sulfur batteries. This electrolyte allows sparingly dissolved polysulfides and localizes them onto reactive interfaces for liquid‐solid conversion.
Xiang‐Long Huang, Xue Li, Hengjia Shao, Xinran Gao, Zhengzhao Huang, Lingfei Zhao, Long Yao, Kunjie Zhu, Fu‐Sheng Ke, Hua‐Kun Liu, Wei‐Hong Lai, Yun‐Xiao Wang   +11 more
wiley   +1 more source

Electrostatic Polysulfides Confinement to Inhibit Redox Shuttle Process in the Lithium Sulfur Batteries

ACS Applied Materials & Interfaces, 2017
Cationic polymer can capture polysulfide ions and inhibit polysulfide shuttle effect in lithium sulfur (Li-S) rechargeable batteries, enhancing the Li-S battery cycling performance. The cationic poly[bis(2-chloroethyl) ether-alt-1,3-bis[3-(dimethylamino) propyl]urea] quaternized (PQ) with a high density quaternary ammonium cations can trap the lithium ...
Min Ling, Wenjun Yan, Ayako Kawase, Hui Zhao, Yanbao Fu, Vincent S. Battaglia, Gao Liu   +6 more
openaire   +3 more sources

Beyond the Edge: Basal‐Plane Defects as the Dominant Catalytic Sites in Sulfur‐Doped Graphene

Advanced Science, EarlyView.
Identification of basal‐plane sites in sulfur‐doped graphene challenges the conventional edge‐focused catalytic picture. Sulfur dopants together with inevitable oxygen‐containing groups modulate local charge and spin distributions, enhancing lithium binding and activating ORR/NRR intermediates.
Xuanhao Yuan, Chenhui Wang, Hui Hu, Hao Cui, Yan Li, Chengxin Wang   +5 more
wiley   +1 more source

Self‐Nitriding Nanostructured Transition Metal Nitrides in Architected‐Carbon Matrices: Unveiling Mechanisms and Advancing Performance in Lithium‐Sulfur Pouch Cells

Advanced Science, EarlyView.
Imidazolium PIL nanoparticles, as an N‐rich template and morphology director, enable a colloidal self‐nitriding route to TMNs (VN, Mo2N) within controlled solid/hollow carbon architectures. As sulfur hosts/additives, TMNs accelerate Li–S redox kinetics and support high‐loading cathodes.
Yael Rodriguez Ayllon, Liqiang Lu, Dongjiu Xie, Xuefeng Pan, Teodor Jianu, Fangmu Qu, Sijia Cao, Yu Zhang, Roberto Félix, Marcus Bär, Nadezda V. Tarakina, Johannes Schmidt, Qingping Wu, Jiayin Yuan, Yan Lu   +14 more
wiley   +1 more source

Facile synthesis of sulfur@titanium carbide Mxene as high performance cathode for lithium-sulfur batteries

Nanophotonics, 2020
The design of sulfur hosts with polar, sulfurphilic, and conductive network is critical to lithium-sulfur (Li-S) batteries whose potential applications are greatly limited by the lithium polysulfide shuttle effect.
Zhang Fan, Zhou Yunlei, Zhang Yi, Li Dongchan, Huang Zhichao   +4 more
doaj   +1 more source

Electrodeposited Sulfur and CoxS Electrocatalyst on Buckypaper as High-Performance Cathode for Li–S Batteries

Nano-Micro Letters, 2020
Lithium–sulfur batteries (LSBs) are considered as the next generation of advanced rechargeable batteries because of their high energy density. In this study, sulfur and CoxS electrocatalyst are deposited on carbon nanotube buckypaper (S/CoxS/BP) by a ...
Yi Zhan, Andrea Buffa, Linghui Yu, Zhichuan J. Xu, Daniel Mandler   +4 more
doaj   +1 more source

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

Mesoporous Co3O4 Nanosheets as Highly Efficient Sulphur Host for Lithium-Sulfur Batteries

International Journal of Electrochemical Science, 2020
As an important part of the lithium-sulfur battery, the cathode material plays a key role in the electrochemical performance of the lithium-sulfur batteries.
Xun Qiao, Fuxiang Yin, Jianshe Huang
doaj   +1 more source

Unveiling Copper‐Induced Phase Transitions and Degradation Mechanisms of Transition Metal Sulfide Anodes for Sodium‐Ion Batteries

Advanced Science, EarlyView.
Sodium polysulfides, which are generated from TMS anodes, react with the Cu current collector, thereby triggering Na‐Cu–S interfacial phase formation. Simultaneously, transition metals undergo ionization and redeposition on the counter electrode. The coupled processes drive the phase evolution of TMS toward the stable Cu1.8S phase.
Jacob Choe, Junpyo Hur, Sanghyeon Park, Jeongmin Kim, Jaeeun Joo, Jae Yeol Park, Chan‐Woo Lee, Jong Min Yuk   +7 more
wiley   +1 more source

Polyaniline-Pyrrole as a Potential Cathode Modifier in Magnesium-Sulfur Battery: An Ab Initio Study

Reactions
Magnesium-sulfur (Mg-S) batteries present a compelling energy storage solution, characterised by their remarkable theoretical energy density and economic viability.
Hassan Shoyiga, Msimelelo Siswana
doaj   +1 more source