I’ve been testing a device that just been introduced called the PowerGorilla. It’s a portable power pack that acts an emergency back-up charger for your laptop computer other other electronic gadgets. The battery inside the PowerGorilla is a lithium-ion and weighs just 631 grams (1.4 pounds). The charger will give you an extra 2-5 hours […]
The PowerGorilla: Flexible Portable Power Read More »
Science Daily reports that British scientists have developed a “biofuel cell” that generates electricity from air spike with small amounts of hydrogen. These cells are an inexpensive, renewable alternative to “fuel cells” that have been closely associated with the “hydrogen economy”. At a recent meeting of the American Chemical Society, Fraser Armstrong, described how his
New Biofuel Cells: Electricity From Hydrogen and Thin Air Read More »
Wet Lead Acid batteries are the most common batteries used in energy systems because of their price, local availability, and ease of recycling. A properly maintained lead acid cell will last about ten years. This type of battery will deliver about 1000 full charge-discharge cycles. The drawbacks of Wet Lead Acid Batteries include the following:
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Gel Cell batteries are also lead acid but the electrolyte is in gelatin form instead of liquid. Thus, they need no maintenance — water does not need to be added, and it doesn’t corrode. They can also be stored in any position and since there are no dangerous fumes, they can be placed in any
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Metabolix has found a way to produce high-quality plastics using plants and bacteria. In one process it has re-engineered bacteria to turn them into highly efficient "biofactories." By feeding sugars and oils to bacteria in a fermentation process, the company has created bacteria that produce plastics amounting to more than 85% of the cell’s weight.
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