Results 81 to 90 of about 2,193,640 (333)

A Hydrophobic Surface Based on a Ni-P-PTFE Coating on a Metallic Bipolar Plate

International Journal of Electrochemical Science, 2018
The performance of 5052 aluminum bipolar plates (BPPs) with surface treatment for proton exchange membrane fuel cell (PEMFC) systems are characterized in this study.
Chien-Hung Lin, Jia-Ren Lee, Pei-Jing Teng, Sung-Ying Tsai, Hung-Hua Sheu, Kung-Hsu Hou, Ming-Der Ger   +6 more
doaj   +1 more source

Optically Tunable Threshold Switching and Thermally Activated Transport in Planar Ag/MAPbI3 Thin Single‐Crystal Devices

Advanced Science, EarlyView.
Planar Ag/MAPbI3 thin single‐crystal halide perovskite devices show ultralow dark current and optically tunable threshold switching. Illumination enhances the polarity‐dependent hysteresis and shifts the switching voltage, whereas temperature‐dependent measurements reveal thermally activated, contact‐limited transport, underscoring the central role of ...
Ofelia Durante, Valeria Demontis, Sebastiano De Stefano, Selene Matta, Adolfo Mazzotti, Daniela Marongiu, Emanuele Meloni, Elisa Pili, Fang Liu, Nicola Sestu, Angelica Simbula, Mauro Carta, Michele Saba, Andrea Mura, Massimiliano Di Ventra, Giovanni Bongiovanni, Antonio Di Bartolomeo   +16 more
wiley   +1 more source

Axiomatic Design of Carbon Composite Bipolar Plates for PEMFC Vehicles [PDF]

, 2011
A PEMFC (Polymer Electrolyte Membrane Fuel Cell or Proton Exchange Membrane Fuel Cell) stack is composed of Gas Diffusion Layers (GDLs), Membrane Electrode Assemblies (MEAs), endplates and bipolar plates.
Yu, H. N., Lee, D. G., Kim, M. K., Suh, J. D., Lim, J. W.   +4 more
core   +1 more source

A review of lightweight bionic sandwich and additive structural designs for hydrogen fuel cell bipolar plates

Frontiers in Mechanical Engineering
Bipolar plates (BPs) constitute the primary structural and functional components of proton exchange membrane fuel cells (PEMFCs), accounting for approximately 60%–80% of the total stack weight and 30%–45% of the total cost.
Yingshuai Liu, Hengyuan Zhang, Xiaochong Tian, Xiaobo Huang, Jianwei Tan   +4 more
doaj   +1 more source

A Review of Metallic Bipolar Plates for Proton Exchange Membrane Fuel Cells: Materials and Fabrication Methods

Advances in Materials Science and Engineering, 2012
The proton exchange membrane fuel cell offers an exceptional potential for a clean, efficient, and reliable power source. The bipolar plate is a key component in this device, as it connects each cell electrically, supplies reactant gases to both anode ...
Shahram Karimi, Norman Fraser, Bronwyn Roberts, Frank R. Foulkes   +3 more
doaj   +1 more source

A comprehensive comparison of state-of-the-art manufacturing methods for fuel cell bipolar plates including anticipated future industry trends

, 2020
This article explains and evaluates contemporary methods for manufacturing bipolar plates (BPPs) for low-temperature polymer electrolyte membrane fuel cells (LT-PEMFC) and highlights the potential of new improved approaches.
S. Porstmann, T. Wannemacher, W. Drossel
semanticscholar   +1 more source

Study on dimensional and corrosion properties of thixoformed A356 and AA7075 aluminum bipolar plates for proton exchange membrane fuel cells

, 2014
Metallic bipolar plates for polymer exchange membrane (PEM) fuel cells are currently manufactured by stamping of thin sheets. However, there are dimensional and shape errors of microchannels because of forming limitation such as spring back of thin ...
Bolouri, Amir, Kang, Chung Gil
core   +1 more source

Neuromorphic Devices and Computing for Sensing, Memory, and Control

Advanced Science, EarlyView.
This review introduces neuromorphic devices made from diverse materials. These devices mimic neuronal functions and architectures and, when integrated with artificial or biological computing, can form closed loops with neurons for pressure, optical, acoustic, and biochemical sensing and modulation.
Zhengguang Zhu, Nicholas Schaffer, Xiao Yang   +2 more
wiley   +1 more source

Indented metallic bipolar plates for vanadium redox flow batteries

Next Energy
The standard industrial vanadium redox flow battery (VRFB) stack is made of thick graphite bipolar plates to support the flow field required for optimal circulation of electrolyte.
Laxman Kumar Kundarapu, M. Maruthi Prasanna, Sreenivas Jayanti   +2 more
doaj   +1 more source

A Microenvironment‐Adaptive Scaffold Rejuvenates Peripheral Nerve Regeneration During Aging Via Dual Modulation of Ferroptotic Stimuli in Schwann Cells

Advanced Science, EarlyView.
(i) Aging impairs peripheral nerve regeneration via its dual ferroptosis‐mediated pathologies in senescent schwann cells. (ii) The composite nerve conduit is a symbiosis niche integrating microenvironment‐responsive nanoparticles (Ga‐PTAs) and maxillofacial‐derived mesenchymal stem cells (Mmscs).
Ning Zhan, Lixin Tian, Lianjie Peng, Jingyu Zhang, Lining Lin, Xiaoting Zhang, Yaxian Luo, Zhichao Liu, Xinhua Yao, Mouyuan Sun, Yong He, Mengfei Yu, Huiming Wang   +12 more
wiley   +1 more source