Search Results Found For: "UNIST"

Conducting polymer increases the energy efficiency of metal-air batteries

A team of researchers affiliated with the South Korean university UNIST has developed a new way to increase the energy efficiency of metal-air batteries by using a conducting polymer. In “Polypyrrole-assisted oxygen electrocatalysis on perovskite oxides,” published in Energy & Environmental Science, Professors Dong-Gyu Lee, Hyun-Kon Song and Guntae Kim explain that, in the cathode… Read more »

Online energy management for PHEVs claims 30% improvement in fuel efficiency

Engineers at the University of California, Riverside (UCR) have developed a new online energy management system (EMS) that they say can improve PHEV fuel efficiency by more than 30%. In “Development and Evaluation of an Evolutionary Algorithm-Based Online Energy Management System for Plug-In Hybrid Electric Vehicles,” published in IEEE Transactions on Intelligent Transportation Systems, Xuewei… Read more »

Researchers demonstrate Li-ion anode with silicon-nanolayer-embedded graphite/carbon

Larger figure Researchers from South Korea’s Ulsan National Institute of Science and Technology (UNIST) and Stanford University have demonstrated the feasibility of a hybrid anode for Li-ion batteries using silicon-nanolayer-embedded graphite/carbon. In “Scalable synthesis of silicon-nanolayer-embedded graphite for high-energy lithium-ion batteries,” published in Nature Energy, Minseong Ko and colleagues explain that this architecture allows compatibility… Read more »

This Changes Everything: Capitalism vs. the Climate (book review)

This Changes Everything: Capitalism vs. the Climate, by Naomi Klein, is a powerful, important book, meticulously researched and beautifully written. I also found it a very disturbing book, and in a way I wish I hadn’t read it. The thesis is that the kind of action required to avert climate catastrophe is incompatible with the… Read more »

Echo Automotive aims for the plug-in fleet sweet spot

The commercial fleet market is one of the most exciting frontiers in the electromobility revolution, not only because of the enormous potential for fuel savings, but because it offers opportunities for a smaller company, which can hope to carve out a lucrative niche developing a powertrain solution, without the need to build the sort of… Read more »

South Korean team develops coated LMO cathode that lasts longer at high temperatures

The quest for the better battery involves ongoing research on improving and optimizing materials used for lithium-ion cells. One such material is LiMn2O4 (LMO), which offers high power and low cost, but cell life at high temperatures can be problematic. In a paper in Nano Letters, a team from the Ulsan National Institute of Science… Read more »

Pike report assesses 10 leading lithium battery firms

Lithium ion batteries – we EV boosters love ‘em (though we wish they could be a bit lighter and a lot cheaper). EV party-poopers hate ‘em, telling anyone who will listen that they’re bound to explode, stop working after a year or two, or maybe even channel mind-controlling signals from hippy Communist aliens. Everyone agrees… Read more »