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Camcorder fueled with hydrogen
April 19, 2001Peep! "Please switch off. Power supply almost exhausted." Every day millions of mobile phone, palmtop, notebook, portable CD player and camcorder users are driven to fury by this warning. Without a power source, this wonderful new wealth of modern electronics is of no use at all. Yet the mobile and wireless trend still surges on. Electronic devices can only be portable if they maintain their own, self-sufficient power source. Disposable or rechargeable batteries are expensive, harmful to the environment and usually do not last long enough. Researchers are thus looking for ever greater urgency for alternatives.
The Fraunhofer-Initiative "Miniature fuel cells" is working on innovative energy concepts for portable electronic devices. Its new means of mobile power supply will be on show at the Hanover fair. Fraunhofer researchers will operate a camcorder using the new fuel cells to illustrate their effectiveness in the low-power segment. "Our exhibit is a world first, since for the first time we will be demonstrating a fully operational and integrated fuel cell system," emphasizes Dr Christopher Hebling of the Fraunhofer Institute for Solar Energy Systems ISE. A miniature fuel cell with a performance capability of 10W at 8V supplies enough power to run a camcorder. The miniature fuel cell is barely larger than a matchbox and consists of 16 bipolar plates stacked and glued on top of one another. A metal hydride reservoir, which can be easily replaced, serves as a tank for the hydrogen. The researchers have paid particular attention to cost-effective subsequent series production.
Also on display will be a fully self-sufficient palmtop, fitted by the ISE with high-performance solar cells. It requires neither fuel, nor battery nor network connection. It draws its energy from the sun. Indeed, even artificial light provides adequate energy to operate the palmtop. Concepts are currently under development for a fuel cell beamer and a universal power pack for portable power supply using fuel cells and solar cells - mobile power stations enabling users of electronic devices to dispense with any power cables.
Fraunhofer-Gesellschaft
Fraunhofer-Gesellschaft
Fuel Cells Current Events and Fuel Cells News RSSShifting the world to 100 percent clean, renewable energy as early as 2030 -- here are the numbers
Most of the technology needed to shift the world from fossil fuel to clean, renewable energy already exists. Implementing that technology requires overcoming obstacles in planning and politics, but doing so could result in a 30 percent decrease in global power demand.
U of C chemists discover recipe to design a better type of fuel cell
Fuel cells are often touted as one method to help decrease society's addiction to fossil fuels. But there is still a lot of work to be done before fuel cells will be ready for mass market to be used in transportation, home heating and portable power for emergencies.
Ion Tiger fuel cell unmanned air vehicle completes 23-hour flight
The Naval Research Laboratory's (NRL's) Ion Tiger, a hydrogen-powered fuel cell unmanned air vehicle (UAV), has flown 23 hours and 17 minutes, setting an unofficial flight endurance record for a fuel-cell powered flight.
New aluminum-water rocket propellant promising for future space missions
Researchers are developing a new type of rocket propellant made of a frozen mixture of water and "nanoscale aluminum" powder that is more environmentally friendly than conventional propellants and could be manufactured on the moon, Mars and other water-bearing bodies.
A recipe for controlling carbon nanotubes
Nanoscopic tubes made of a lattice of carbon just a single atom deep hold promise for delivering medicines directly to a tumor, sensors so keen they detect the arrival or departure of a single electron, a replacement for costly platinum in fuel cells or as energy‐saving transistors and wires.
University of the Basque Country researcher makes progress in optimising solid oxide fuel cells
While our standard of life increases, so does the worldwide energy demand. In this vein, the application of technologies based on fuel cells is put forward as an alternative to the massive consumption of fossil fuels.
Smaller isn't always better: Catalyst simulations could lower fuel cell cost
Imagine a car that runs on hydrogen from solar power and produces water instead of carbon emissions. While vehicles like this won't be on the market anytime soon, University of Wisconsin-Madison researchers are making incremental but important strides in the fuel cell technology that could make clean cars a reality.
Water quality in orbit
Space is not a fun place to get a stomach bug. To ensure drinking water is adequately disinfected, University of Utah chemists developed a two-minute water quality monitoring method that just started six months of tests aboard the International Space Station.
Making more efficient fuel cells
Bacteria that generate significant amounts of electricity could be used in microbial fuel cells to provide power in remote environments or to convert waste to electricity.
Pitt researchers harness carbon nanomaterials for drug delivery systems, oxygen sensors
Two nanoscale devices recently reported by University of Pittsburgh researchers in two separate journals harness the potential of carbon nanomaterials to enhance technologies for drug or imaging agent delivery and energy storage systems, in one case, and, in the other, bolster the sensitivity of oxygen sensors essential in confined settings, from mines to spacecrafts.
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