US Secretary of Energy, Dr. Steven Chu

Arizona State University professor Cody Friesen thinks he can make a metal-air battery with up to 11 times the energy density of lithium batteries at potentially half the cost. Now the US Department of Energy’s advanced research incubator ARPA-E has just given his spin-off company, Fluidic Energy, a $5.13 million research grant to try and do just that.

Read more of this story »

The Salamander of myth and legend: a creature which lives in water but renews its life in fire. It’s rubbish, Bunkum, steaming horse manure…  a bit like an electric car with neither plug nor solar panels.

Except no one’s told those clever boffins over at Advanced Power and Energy Sources Transportation (APET) in Hong Kong. According to them, the Salamander and the cordless EV are about to step out of myth and into reality.

APET’s revolution centres upon how zinc air batteries can power EVs. The technology is proven on the small scale: hearing aid battery adverts dominate any Google search for “zinc air battery”.

Furthermore, as zinc air batteries need only zinc, air and water to produce electricity they are likely the most environmentally friendly ones around.

However, upscaling the technology from a hearing aid to a car has always been a problem.

Until now.

Read more of this story »

Lithium-ion batteries are great and all—having heralded in a new age of portable electronics and allowed for the possibility of mass-market electric cars—but they have a few major drawbacks. For instance, they have a propensity to catch fire and explode and, although they have a much better energy storage capacity than say lead-acid or nickel metal hydride (NiMH) batteries, they still weigh too much to pack more than a couple hundred miles of range into a passenger car.

Read more of this story »

A group of researchers at Uppsala University in Sweden have discovered that a particular type of algae — with a bad reputation for causing damaging algal blooms in oceans throughout the world — produces a substance that can be used to make inexpensive, non-toxic, simple-to-build, flexible, thin and durable batteries that, after optimization, are expected to perform on par with today’s most advanced lithium-ion batteries.

The key to the discovery lies in the way in which the algae, Cladophora, produce a unique type of cellulose with a very large surface area (approximately 80 square meters of surface area per gram of material).

By coating this algal cellulose material with a thin layer of a well-known, conductive polymer, called polypyrrole (PPy), the team has “succeeded in producing a battery that weighs almost nothing and that has set new charge-time and capacity records for polymer-cellulose-based [non-metallic] batteries,” according to Gustav Nyström, a doctoral student in nanotechnology and one of the main researchers.

Read more of this story »

Setting its sights on the burgeoning US market for car batteries, cutting-edge Swiss zinc-air battery company, ReVolt, has decided to take advantage of Oregon’s generous business tax credits for development of next generation car technologies.

Read more of this story »