Results 51 to 60 of about 8,733 (257)

Potassium polysulfide cathodes in potassium-sulfur batteries: A comparison between liquid and gel polymer electrolytes

open access: yesAdvanced Sensor and Energy Materials
With the growing demand for sustainable energy storage technologies, potassium-sulfur (K-S) batteries have attracted attention as a viable alternative to lithium-ion systems.
Maedeh Oroujpour   +3 more
doaj   +1 more source

A Crack‐Based One‐Dimensional Microspheres Array Enables Thermal–Mechanical Decoupled Dual‐Functional Sensing

open access: yesAdvanced Science, EarlyView.
Inspired by Nostoc, a crack‐based one‐dimensional microspheres array (COMA) sensor is developed, which stabilizes crack geometry under isotropic expansion, enabling a predictable, monotonic thermal response from which true strain can be accurately extracted. The COMA sensor exhibits high sensitivity at ultralow deformation (gauge factor up to 89) and a
Wanqing Xu   +7 more
wiley   +1 more source

Advanced Multiscale Modeling of Potassium‐Ion Batteries for Interplay of Electrochemical and Mechanical Behavior Across Scales

open access: yesSmall Structures
Potassium‐ion batteries present a promising alternative to address the global lithium shortage. However, their electrochemical performance is significantly hampered by the severe volume expansion of graphite electrodes upon K‐ion intercalation.
Subeen Kim   +3 more
doaj   +1 more source

Sulfur and nitrogen codoped cyanoethyl cellulose‐derived carbon with superior gravimetric and volumetric capacity for potassium ion storage

open access: yesCarbon Energy, 2022
We fabricated sulfur and nitrogen codoped cyanoethyl cellulose‐derived carbons (SNCCs) with state‐of‐the‐art electrochemical performance for potassium ion battery (PIB) and potassium ion capacitor (PIC) anodes.
Guangzeng Cheng   +9 more
doaj   +1 more source

An Energy Autonomous Microneedle Array‐Based Sensing System for Continuous Biomarker Monitoring

open access: yesAdvanced Science, EarlyView.
This work presents an innovative self‐powered wearable biosensor system for real‐time monitoring of multiple biomarkers in interstitial fluid. The device integrates stainless steel‐based minimally invasive microneedles with ion‐selective membranes, enabling simultaneous Na+, K+, Ca2+, pH, and glucose detection.
Arnab Pal   +9 more
wiley   +1 more source

10 Years Development of Potassium‐Ion Batteries

open access: yesAdvanced Materials
Abstract Potassium‐ion batteries (PIBs), with abundant resources and low cost, are considered as a promising alternative to commercial lithium‐ion batteries for low‐cost and large‐scale applications. Over the past decade, significant academic progresses are made in the development of PIBs, including advancements in cathodes, anodes ...
Mingnan Li   +7 more
openaire   +3 more sources

Tin-based composite anodes for potassium-ion batteries

open access: yesChemical Communications, 2016
An anode based on the tetragonal tin (Sn) phase that can alloy electrochemically with potassium is demonstrated for potassium-ion batteries.
Irin, Sultana   +4 more
openaire   +3 more sources

A Millimeter‐Scale Implantable Magneto–Mechano–Electric Transducer Based on BTO Piezoelectric Ceramics for Remote Wireless Electrical Stimulation of Injured Sciatic Nerves

open access: yesAdvanced Science, EarlyView.
We report a fully wireless, circuit‐free neural stimulator built on a millimetric magneto‐mechano‐electric (MME) cantilever transducer (3 × 10 × 5 mm) with a barium titanate (BTO) piezoelectric ceramic core. Under low‐frequency alternating magnetic fields, the MME cantilever mechanically oscillates, inducing stress on the BTO element and thereby ...
Yijing Wang   +7 more
wiley   +1 more source

Potassium Vanadate Nanobelt as a High-Capacity Cathode Material for Li-ion Battery

open access: yesInternational Journal of Electrochemical Science, 2014
In this paper, a potassium-deficient K0.66V3O8 with nanobelt morphology was synthesized by a facile and large-scale hydrothermal method and its electrochemical performance as cathode material for Li- ion battery was investigated.
Xiaobing Huang   +6 more
doaj   +1 more source

K+‐Triggered Defect Engineering and Proton‐Coupled Storage in V2O5·nH2O for Advanced Zn‐Ion Thin‐Film and Microbatteries

open access: yesAdvanced Science, EarlyView.
K+ pre‐intercalation in V2O5·nH2O induces interlayer contraction, oxygen‐vacancy formation, and mixed‐valence states, activating defect‐mediated proton‐dominated transport. This enables cooperative H+/Zn2+ storage with enhanced kinetics and stability. The resulting Zn‐based thin‐film and microbatteries deliver high areal energy and capacity, offering a
Jingli Luo   +14 more
wiley   +1 more source

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