Results 31 to 40 of about 125,749 (268)

Experimental Study of Single Phase Flow in a Closed-Loop Cooling System with Integrated Mini-Channel Heat Sink

Entropy, 2016
The flow and heat transfer characteristics of a closed-loop cooling system with a mini-channel heat sink for thermal management of electronics is studied experimentally.
Lei Ma, Xuxin Zhao, Hongyuan Sun, Qixing Wu, Wei Liu   +4 more
doaj   +1 more source

Testing and characterisation of large high-energy lithium-ion batteries for electric and hybrid electric vehicles [PDF]

, 2007
This thesis considers the drivetrain and battery system requirements of Hybrid Electric Vehicles. The data herein proves that a series hybrid electric drivetrain with Lithium-ion batteries and plug-in recharge promises to be viable and sustainable ...
Doerffel, Dennis
core  

Microstructure Reconstruction in Battery Electrodes Using Machine Learning Based on Low‐Voltage Focused Ion Beam–Scanning Electron Microscopy Tomography Images

Advanced Engineering Materials, EarlyView.
Low‐voltage FIB‐SEM tomography combined with a image preprocessing pipeline improves phase contrast and enables reliable machine‐learning segmentation of conductive networks in lithium‐ion battery electrodes. Structural descriptors are extracted from segmented images, done semimanually and automated, and compared.
Lisa Beran, Vincent Nebel, Dominik Perius, Kshitij Kumar, Yannis Heim, Laura Bies, Tobias Kraus   +6 more
wiley   +1 more source

Tackling activity-stability paradox of reconstructed NiIrOx electrocatalysts by bridged W-O moiety

Nature Communications
One challenge remaining in the development of Ir-based electrocatalyst is the activity-stability paradox during acidic oxygen evolution reaction (OER), especially for the surface reconstructed IrOx catalyst with high efficiency.
Muhammad Imran Abdullah, Yusheng Fang, Xiaobing Wu, Meiqi Hu, Jing Shao, Youkun Tao, Haijiang Wang   +6 more
doaj   +1 more source

New Insight into Vinylethylene Carbonate as a Film Forming Additive to Ethylene Carbonate-Based Electrolytes for Lithium- Ion Batteries

International Journal of Electrochemical Science, 2013
The effects of vinylethylene carbonate (VEC) as electrolyte additive and the content of VEC in ethylene carbonate (EC)-based electrolyte on the formation mechanisms of solid electrolyte interphase (SEI) film and the electrochemical properties of the ...
Shou-Dong Xu, Quan-Chao Zhuang, Jing Wang, Ya-Qian Xu, Ya-Bo Zhu   +4 more
doaj   +1 more source

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

Advanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng, Qian Yao, Yanan Sun, Hongyu Lv, Zhongchao Bai, Guoliang Zhang, Nana Wang, Jian Yang   +7 more
wiley   +1 more source

Concurrent surface and bulk modification of ceria-based cathodic catalyst for CO2 reduction in solid oxide electrolysis cell under strong polarization conditions

Journal of Advanced Ceramics
High-temperature solid oxide electrolysis cells (SOECs) offer high energy efficiency and environmental compatibility for CO2 conversion but currently face the critical challenges of phase instability and coke formation, especially under the strong ...
Yongjian Chen, Ciyuan Deng, Wanying Luo, Hongming Ye, Rui Yang, Manish Singh, Te-Wei Chiu, Liangdong Fan   +7 more
doaj   +1 more source

From Food to Power: Hydrogel Thermoelectrics for Ingestible Electronics

Advanced Functional Materials, EarlyView.
We introduce a fully edible thermoelectric–electrochromic platform that harvests heat from food and converts it into a visible color change. N‐type and p‐type hydrogel thermoelectric generators connected in series power anthocyanin‐based electrochromic displays, demonstrating the feasibility of safe, biodegradable, ingestible systems for on‐food ...
Antonia Georgopoulou, Bokeon Kwak, Dario Floreano, Esther Amstad   +3 more
wiley   +1 more source

Direct observation of active material concentration gradients and crystallinity breakdown in LiFePO4 electrodes during charge/discharge cycling of lithium batteries

, 2014
The phase changes that occur during discharge of an electrode comprised of LiFePO4, carbon, and PTFE binder have been studied in lithium half cells by using X-ray diffraction measurements in reflection geometry. Differences in the state of charge between
Nicklin, Chris, Alex Madsen, Hector, Andrew L., Roberts, Matthew R.,, Palmer, M., Matthew R. Roberts, Chris Nicklin, John R. Owen, Roberts, Matthew R., Rawle, Jonathan, Jonathan Rawle, Michael G. Palmer, Andrew L. Hector, Owen, John R., Madsen, Alex, Palmer, Michael G.   +15 more
core   +1 more source

Receptor‐Free Identification of Toxic Gases Enabled by Hygroscopic Aqueous Salt Films

Advanced Functional Materials, EarlyView.
Water as a gas sensor coating sounds impossible—until it stops evaporating. Here, hygroscopic salt solutions (LiCl, LiBr, H3PO4) form non‐drying aqueous films on CNT chemiresistors under ambient air. Gases partition into these liquid layers, sometimes transforming into water, and generate salt‐specific resistance fingerprints across a four‐channel ...
Seongwoo Lee, Yun‐Tae Kim, Hwarang Choi, Sanghwan Park, Seongyeop Lim, Chang Young Lee   +5 more
wiley   +1 more source