The cyclic stress in lithium-ion battery electrodes induced by repeated charge and discharge cycles causes electrode degradation and fracture, resulting in reduced battery performance and lifetime. To investigate electrode mechanics as a function of electrochemical cycling, we utilize digital image correlation (DIC) to measure the strains that develop in lithium-ion battery electrodes during li...

A concentric coplanar capacitive sensor includes a charged central disc forming a first electrode, an outer annular ring coplanar with and outer to the charged central disc, the outer annular ring forming a second electrode, and a gap between the charged central disc and the outer annular ring. The first electrode and the second electrode may be attached to an insulative film. A method provides...

Engineering ceramics have been widely used in modern industry for their excellent physical and mechanical properties, and they are difficult to machine owing to their high hardness and brittleness. Electrical discharge machining (EDM) is the appropriate process for machining engineering ceramics provided they are electrically conducting. However, the electrical resistivity of the popular engine...

We develop a performance model for a polymer electrolyte membrane based regenerative hydrogen-bromine fuel cell (rHBFC). The model includes four voltage loss mechanisms: ohmic loss through the membrane, hydrogen electrode activation, bromine electrode activation, and bromine electrode mass transport. We explore a large parameter space by looking at the dependences of each of these losses as a f...

TAMPERE UNIVERSITY OF TECHNOLOGY Master’s Degree Programme in Electrical Engineering ILKKA HOKAJÄRVI: Electrode Contact Impedance and Biopotential Signal Quality Master of Science Thesis, 66 pages, 3 Appendix pages September 2012 Major: Biomedical Engineering Examiner: Professor Jari Hyttinen

Top Electrode Engineering In article 2300146, Cheol Seong Hwang and co-workers demonstrate that the Ru top electrode significantly improves ferroelectric performance of Hf0.5Zr0.5O2/TiN bottom thin film capacitor by adequately controlling oxygen vacancy concentration at interface. Therefore, interfacial engineering is an important technology can overcome trade-off relationship between polarizat...

a School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN 47907, USA b Birck Nanotechnology Center, Purdue University, West Lafayette, IN 47907, USA c School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907, USA d Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA e Micro and Nanotechnology Lab, Univ...

The stability of implanted electrodes is a significant problem affecting their long-term use in vivo. Problems include mechanical failure and inflammation at the implantation site. The engineering of bioactive electrode coatings has been investigated for its potential to promote in-growth of neural tissue and reduce sheer at the electrode-host interface. Preliminary results indicate that hydrog...