Results 91 to 100 of about 455,502 (342)

Spinel LiMn2O4 with Two-step Nano-Al2O3 Coating as High Performance Positive Materials

open access: yesInternational Journal of Electrochemical Science, 2017
To study the influence of the uniformity and integrity of amphoteric metal oxide coating layers on the performance of positive materials in Lithium-ion batteries, nano-Al2O3-coated LiMn2O4 positive material were synthesized by using a two-step sol-gel ...
Yannan Zhang   +10 more
doaj   +1 more source

Powering the Future: A Cobalt‐Based Catalyst for Longer‐Lasting Zinc–Air Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A novel N‐doped graphitic shell‐encapsulated Co catalyst reveals superior bifunctional ORR/OER activity in alkaline media, empowering outstanding liquid and quasi‐solid‐state ZAB activity. The system delivers long‐term durability, a peak power density of 127 mW cm−2 and successfully powers an LED and a mini fan.
Manami Banerjee   +10 more
wiley   +1 more source

Preparation and Electrochemical Properties of Multiscale Porous Active Carbon for Supercapacitor Electrodes Made from Ultra-Pure Lignite by Microwave Irradiation

open access: yesInternational Journal of Electrochemical Science, 2016
Multiscale porous activate carbon with appropriate pore-size distribution for supercapacitor electrode was prepared from ultra-pure lignite with only 0.3wt% ash through the synergistic effect of microwave irradiation, the activation of KOH and ZnCl2 ...
Mingyue Zhang   +2 more
doaj   +1 more source

Prospects for lithium-ion batteries and beyond—a 2030 vision

open access: yesNature Communications, 2020
It would be unwise to assume ‘conventional’ lithium-ion batteries are approaching the end of their era and so we discuss current strategies to improve the current and next generation systems, where a holistic approach will be needed to unlock higher ...
C. Grey, D. Hall
semanticscholar   +1 more source

Photo‐Switching Thermal and Lithium‐Ion Conductivity in Azobenzene Polymers

open access: yesAdvanced Functional Materials, EarlyView.
Light‐responsive azobenzene polymers control thermal and ionic transport simultaneously through structural transitions. UV illumination disrupts π–π stacking, converting crystalline trans states to amorphous cis configurations. Thermal conductivity drops from 0.45 to 0.15 W·m−1·K−1 while Li+ diffusivity increases 100 fold. This dual transport switching
Jaeuk Sung   +7 more
wiley   +1 more source

Revisiting the Enhancement Mechanism of Electrochemical Performance of Functional Atom‐Doped Hard Carbon in Potassium‐Ion Batteries

open access: yesSusMat
Atomic doping is recognized as an effective strategy to enhance the electrochemical performance of hard carbon (HC) in potassium‐ion batteries. However, the comprehension of its influence on microstructure remains inadequately understood.
Ziyi Zhu   +8 more
doaj   +1 more source

Biomass-derived carbon materials for energy storage applications [PDF]

open access: yes, 2021
Energy storage systems are an essential link in the implementation of renewable energies and in the development of electric vehicles, which are needed to reduce our dependence on fossil fuels and the emission of greenhouse gases.
Gómez Martín, Aurora
core  

Laser‐Induced Microfabrication of Carbon Nanostructure: Processing Mechanism and Application for Next‐Generation Battery Technology

open access: yesAdvanced Functional Materials, EarlyView.
The article reviews laser‐processed carbons from various precursors, processing mechanism and their application in advanced batteries. The laser process is chemical free, fast, and scalable, enabling improved battery performance and stability for Li, Na, and Zn battery technologies.
Sujit Deshmukh   +2 more
wiley   +1 more source

Advances in Repurposing and Recycling of Post-Vehicle-Application Lithium-Ion Batteries [PDF]

open access: yes, 2016
Increased electrification of vehicles has increased the use of lithium-ion batteries for energy storage, and raised the issue of what to do with post-vehicle-application batteries. Three possibilities have been identified: 1) remanufacturing for intended
Baine, Nicholas   +2 more
core   +1 more source

Solar Heating Enhanced Selective Recovery of Metal Ions Through Flowing Electrodes Enabled by Hybrid Carbon Nanostructures

open access: yesAdvanced Functional Materials, EarlyView.
A new electrochemical system based on a microporous hybrid of carbon nanoplatelets and nanotubes to selectively capture Ni2+ from wastewater is constructed. The system temperature rises rapidly when irradiated with sunlight, which enhances the Ni2+ removal rate by 250% and the selectivity by 53%, and the energy consumption is also reduced by 51 ...
Ziquan Wang   +11 more
wiley   +1 more source

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