Results 61 to 70 of about 23,769 (301)

Improved electrochemical behavior of Li–S battery with functional WS2@PB–PPy–modified separator

Chemical Engineering Journal Advances, 2021
The Li–S battery is extremely attractive in electric vehicles and portable electronics owing to the ultrahigh theoretical energy density and reduced cost.
Guoda Wang, Qing Jiao, Zengcheng Zhang, Yue Zhao, Changgui Lin, Xianghua Zhang, Hongli Ma, Shixun Dai, Tiefeng Xu   +8 more
doaj   +1 more source

Polyimide‐Linked Hexaazatriphenylene‐Based Porous Organic Polymer with Multiple Redox‐Active Sites as a High‐Capacity Organic Cathode for Lithium‐Ion Batteries

Advanced Materials, EarlyView.
A high‐capacity polyimide‐linked porous organic polymer (HAT‐PTO) incorporating numerous redox‐active centers is synthesized via a hydrothermal reaction, delivering a high theoretical capacity of 484 mAh g−1. In situ hybridization with carboxyl‐functionalized multiwalled carbon nanotubes enhances conductivity and stability, achieving 397 mAh g−1 at C ...
Arindam Mal, Jonathan Caroni, Asia Patriarchi, Olivera Luzanin, Rafael Ramos, Jan Bitenc, Manuel Melle‐Franco, Manuel Souto   +7 more
wiley   +1 more source

Sulfur Encapsulation into Carbon Nanospheres as an Effective Technique to Limit Sulfide Dissolution and Extend the Cycle Life of Lithium–Sulfur Batteries

Energies
Lithium–sulfur batteries suffer from a reduced cycle life and diminished coulombic efficiency, which is attributed to the polysulfide shuttle effect.
Wissam Fawaz, Zhao Wang, Ka Yuen Simon Ng   +2 more
doaj   +1 more source

Tailored Redox‐Active Catholytes Enabling High‐Rate and High‐Loading All‐Solid‐State Lithium‐Sulfur Batteries

Advanced Materials, EarlyView.
This study explores iodine substitution in solid electrolytes to overcome sluggish redox kinetics and poor charge transport in all‐solid‐state Li‐S batteries. The resulting iodine‐rich, amorphous phase and superionic, nanocrystalline domains enable effective redox mediation and provide a robust ionic percolation network.
Jingui Yang, Ruizhuo Zhang, Ramon Zimmermanns, Mareen Schaller, Sylvio Indris, Jaehoon Choi, Simon Fleischmann, Torsten Brezesinski, Florian Strauss   +8 more
wiley   +1 more source

Copper chloride cathode for a secondary battery [PDF]

, 1990
Higher energy and power densities are achieved in a secondary battery based on molten sodium and a solid, ceramic separator such as a beta alumina and a molten catholyte such as sodium tetrachloroaluminate and a copper chloride cathode.
Bankston, Clyde P., Bugga, Ratnakumar V., Distefano, Salvador, Nagasubramanian, Ganesan   +3 more
core   +1 more source

Graphene/Li-Ion battery [PDF]

, 2012
Density function theory calculations were carried out to clarify storage states of Lithium (Li) ions in graphene clusters. The adsorption energy, spin polarization, charge distribution, electronic gap, surface curvature and dipole momentum were ...
Azizollah Shafiekhani, Frisch M. J., Narjes Kheirabadi   +2 more
core   +2 more sources

Prussian Blue Analog as a Functional Additive for Restoring Sulfide Solid Electrolytes: Enhancing Moisture Stability in All‐Solid‐State Batteries

Advanced Materials, EarlyView.
This work unveils the multifunctional roles of Prussian blue analogs (PBAs) within the LPSCl matrix, where they act as effective moisture scavengers and enable partial recovery of electrochemical performance. In addition, owing to their relatively soft nature, PBAs help mitigate interfacial stress and thereby enhance electrochemical stability and ...
Sumin Ko, Hyebin Jeong, Changshin Jo, Sang‐Min Lee   +3 more
wiley   +1 more source

Correlated Dual‐Gradient Electrodes Enabling Spatially Synchronized Sulfur Redox in High‐Mass‐Loading Li–S Batteries Under High Current Densities

Advanced Materials, EarlyView.
Coupling a dual‐gradient carbonized framework with Fe2O3/Fe‐N‐C catalytic sites enables spatially synchronized sulfur redox across the entire electrode thickness in high‐mass‐loading Li–S batteries. This synergistic structural–catalytic design effectively mitigates concentration, ohmic, and electrochemical polarization, thereby achieving high‐capacity ...
Yuxuan Zhang, Yeongjun Oh, Jinwook Baek, Minyoung Kim, Zachary Didat, Han Wook Song, Sunghwan Lee   +6 more
wiley   +1 more source

A Solid State Zwitterionic Plastic Crystal With High Static Dielectric Constant

Advanced Materials, EarlyView.
Developing solid high dielectric constant materials has been a research focus in the energy storage field. In this research, we discovered a zwitterion with a plastic crystal phase. Due to the short‐range degree of freedom of the dipole moment for this zwitterion, a relatively high static dielectric constant has been achieved in its solid state ...
Zitan Huang, Yifan Liu, Tiago Outerelo Corvo, Ain Uddin, Michelle L. Lehmann, Tomonori Saito, Valentino R. Cooper, Ralph H. Colby   +7 more
wiley   +1 more source

Hollow NiCo2O4Nanofibers Prepared by Electrospinning as an Effective Sulfur Host for High-Performance Lithium-Sulfur Batteries

International Journal of Electrochemical Science, 2019
Many achievements have been obtained for the lithium-sulfur battery by using various superior host materials for the element sulfur. However, the sulfur loading in the previous works is under 2 mg cm-2.
Bin Cai, Yuning Meng, MengEn Zhu, Peng Peng   +3 more
doaj   +1 more source