Results 41 to 50 of about 299,354 (357)

Effects of Goethite/Birnessite on Antimony Speciation in Yellow Soil from an Antimony Mining Area under Simulated Natural Conditions

open access: yesYankuang ceshi
The antimony (Sb) mining area and its surrounding soil are severely polluted with antimony, and the degree of antimony pollution is closely related to its speciation in the soil.
Jingguang LIU   +5 more
doaj   +1 more source

Tuning the Electronic Structure and Spin State of Fe─N─C Catalysts Using an Axial Oxygen Ligand and Fe Clusters for High‐Efficiency Rechargeable Zinc–Air Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A FeN4─O/Clu@NC‐0.1Ac catalyst containing atomically‐dispersed FeN4─O sites (medium‐spin Fe2+) and Fe clusters delivered a half‐wave potential of 0.89 V for ORR and an overpotential of 330 mV at 10 mA cm−2 for OER in 0.1 m KOH. When the catalyst was used in a rechargeable Zn–air battery, a power density of 284.5 mW cm−2 was achieved with excellent ...
Yongfang Zhou   +8 more
wiley   +1 more source

Anti-Kasha triplet energy transfer and excitation wavelength dependent persistent luminescence from host-guest doping systems

open access: yesNature Communications, 2023
Anti-Kasha’s process in organic luminogens has attracted many attentions since its discovery. However, only limited examples of anti-Kasha’s rule have been reported and anti-Kasha triplet energy transfer (ET) is even less-touched.
Weiwei Xie   +6 more
doaj   +1 more source

Artificial Amorphous Interface Matters for Boosting High‐Voltage Stable LiCoO2 Cathode

open access: yesAdvanced Functional Materials, EarlyView.
The amorphization of phosphate‐based surface layer with favorable Li‐ion conducting kinetics is realized by precisely tailored atomic‐level fabrication. This amorphous coating enables the lithium cobalt oxide (LCO) cathode superior high‐voltage rate capability and cycling performance, owing to the fast interfacial ionic transport and maintained ...
Jinjin Ma   +10 more
wiley   +1 more source

Digital Actuation Control of Soft Robotic Origami With Self‐Folding Liquid Crystal Elastomer Hinges

open access: yesAdvanced Functional Materials, EarlyView.
Self‐folding soft‐rigid hybrid robotic origami is enabled by liquid crystal elastomer actuators with embedded Joule heating and closed‐loop digital control. Digitally addressable hinges provide reversible and programmable transitions between distinct folded states while maintaining actuation performance at high cycle counts (over 1500).
David C. Bershadsky   +3 more
wiley   +1 more source

Effects of LaPO4 coating on the performance of LiNi0.5Co0.2Mn0.3O2 cathode material for lithium ion batteries

open access: yesInternational Journal of Electrochemical Science, 2018
LiNi0.5Co0.2Mn0.3O2 (NCM-523) cathode material is coated with 2.0, 4.0 and 6.0 wt% of LaPO4 via liquid phase coating method. The structure, morphology and electrochemical properties of surface modified LiNi0.5Co0.2Mn0.3O2 materials are characterized by X-
Xiaodong Jiang   +11 more
doaj   +1 more source

Laser‐Welded Cellulose‐Carbon Nanotube Nanocomposites as a 3D Scaffold of Si Anodes for High‐Performance Lithium‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A Si anode comprising entangled networks of cellulose and SWCNT (C‐CNT) nanocomposites as an anode electrode for a high‐performance LIB is realized by fully utilizing the generated microstructure of a novel conductive 3D scaffold via a low‐temperature and eco‐friendly process. Additionally, localized heating via photo‐thermal conversion can be utilized
Boeun Ryu   +5 more
wiley   +1 more source

Giant dielectric ceramic of Li0.3Ti0.02Ni0.68O with abundant oxygen vacancies enabling high lithium-ion conductivity in composite solid-state electrolyte

open access: yesCarbon Neutrality
The low ionic conductivity of composite solid-state electrolytes due to the lack of free Li-ions and Li dendrite growth induced by the low transference number seriously hinder their application.
Xufei An   +7 more
doaj   +1 more source

ZIF-based heterojunction filler enhancing Li-ion transport of composite solid-state electrolytes

open access: yesEnergy Materials and Devices
Composite solid electrolytes (CSEs) are considered among the most promising candidates for solid-state batteries. However, their practical application is hindered by low ionic conductivity and a limited lithium-ion transference number, primarily owing to
Jianshuai Lv   +9 more
doaj   +1 more source

Global Sensitivity Methods for Design of Experiments in Lithium-ion Battery Context [PDF]

open access: yes, 2020
Battery management systems may rely on mathematical models to provide higher performance than standard charging protocols. Electrochemical models allow us to capture the phenomena occurring inside a lithium-ion cell and therefore, could be the best model
Pozzi, Andrea   +3 more
core   +2 more sources

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