Results 101 to 110 of about 2,499,115 (239)

Cross‐scale Material‐Structure Synergy for 2D Metamaterials: Toward Customizable Intelligent Electromagnetic Manipulation in Multiphysics Fields

open access: yesAdvanced Science, EarlyView.
Recent advances in metasurface‐enabled low‐observable technologies are reviewed from the perspective of cross‐scale material–structure synergy. Electromagnetic, thermal, optical, and acoustic stealth are highlighted together with dynamic tuning, programmable coding, data‐driven inverse design, artificial intelligence, multispectral compatibility, and ...
Shuhao Wang   +5 more
wiley   +1 more source

Full-Scale Experimental Analysis of the Behavior of Electric Vehicle Fires and the Effectiveness of Extinguishing Methods

open access: yesFire
The emergence of electric vehicles (EVs) has brought specific risks, including the possibility of fires or explosions resulting from mechanical, thermal, or electrical failures, which can lead to thermal runaway (TR).
Ana Olona, Luis Castejon
doaj   +1 more source

Geometry‐Encoded Soft Strain Sensing via Liquid‐Metal Transmission Lines

open access: yesAdvanced Science, EarlyView.
This study presents a liquid‐metal transmission‐line strain sensor that achieves intrinsic decoupling by encoding axial elongation into propagation delay. The time‐domain readout remains stable under complex off‐axis. This enables reliable, repeatable, real‐time elongation measurement in dynamic, multiaxial loading environments for wearable electronics,
Zhang Liu   +12 more
wiley   +1 more source

Synergy of high-efficiency passive protective nanocomposite materials and active liquid cooling for suppressing thermal diffusion in lithium-ion power batteries

open access: yesApplications in Energy and Combustion Science
The widespread adoption of high-energy-density NCM 811 lithium-ion batteries in electric vehicles is hampered by significant safety risks associated with thermal runaway and its propagation.
Hao Zhang   +5 more
doaj   +1 more source

Self‐Healing UPy‐Functionalized Polyethylene Networks: A Robust Platform for Resilient and High‐Performance Lithium Battery Separators

open access: yesAdvanced Science, EarlyView.
Self‐healing separators are developed by grafting ureidopyrimidinone (UPy) quadruple hydrogen‐bonding motifs onto PE‐HEMA copolymers, blended with high‐MW PEO via solvent‐free hot‐pressing. The dynamic UPy network enables autonomous healing, restoring functionality after short circuits.
Daniele Callegari   +4 more
wiley   +1 more source

Anode‐Free Sodium Metal Batteries: From Materials Design to System‐Level Integration

open access: yesAdvanced Science, EarlyView.
Anode‐free sodium metal batteries hold no sodium reserve, so every inefficiency becomes permanent loss. Resolving the inventory into reversible, dead, and chemically bound fractions exposes what Coulombic efficiency hides. Practical 500‐cycle operation requires above 99.95%, a threshold few systems meet under lean electrolyte and high areal capacity ...
Hamid Hussain   +10 more
wiley   +1 more source

Detection and Prevention Technologies for Lithium-Ion Battery Thermal Runaway

open access: yes
The rapid popularization of lithium-ion batteries (LIBs) in vehicles and energy storage brings frequent thermal runaway safety accidents, which severely restrict industrial development.
Yuansheng Xu   +4 more
core   +1 more source

Active Oscillations of Elastic Membranes Arising from the Coupling with a Catalytic Reaction

open access: yesAdvanced Science, EarlyView.
Coupling an elastic membrane to a catalytic reaction produces active oscillations that self‐sustain for hours: the membrane cyclically inflates and deflates as the reaction spontaneously activates and deactivates, without external power. Energy release is directly embodied in the oscillation dynamics, opening elasto‐chemical strategies for the physical
Alberto Comoretto   +5 more
wiley   +1 more source

Thermal Runaway Simulation and Fire Risk Assessment of Electric Vehicle Power Battery Packs

open access: yesFire
Thermal runaway in electric vehicle power battery packs is a key risk in fire prevention and control for electric transportation. Its triggering, propagation, and failure modes are jointly affected by external thermal abuse, material insulation ...
Junwei Shi, Ziyan Zhang, Mengyao Zhang
doaj   +1 more source

Thermal Runaway Severity Reduction Assessment and Implementation: On Li-Ion Batteries [PDF]

open access: yes, 2015
Preventing cell-cell thermal runaway propagation and flames/sparks from exiting battery enclosure is possible with proper thermal & electrical design and cell thermal runaway ejecta/effluent management and can be had with minimal mass/volume ...
Darcy, Eric
core  

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