Advertisement
more top stories »

Rechargeable Batteries

— Environment

earthCell batteries promise near-zero waste and better value

By - November 8, 2011 2 Pictures
If you really want to minimize the amount of toxins that you put into the environment, use rechargeable batteries. Disposable and rechargeable batteries can contain heavy metals such as mercury, lead, and cadmium, and with an estimated 3 billion batteries a year being discarded in the U.S. alone, the sometimes small amounts in each battery can really add up. Using rechargeables greatly reduces the number of batteries entering landfills, but many people don't bother buying them, or the chargers that they require. That's where earthCell batteries come in. They can be used like disposables, except that users send them away for for recharging or recycling when they're dead. Read More
— Automotive

BYD's all-electric e6 hits the market - 87 mph and a range of 190 miles

By - October 27, 2011 5 Pictures
One of the stars of the Chinese automotive industry is Shenzen-based BYD, which although only sixth largest of the Chinese manufacturers, had the country's top selling individual vehicle last year in the form of the BYD F3 (a Toyota Corolla E120 clone). Now, after substantive testing of its e6 all-electric model in taxi and company fleets, the five-seater 75 kW, 87 mph crossover has gone on sale to the Chinese public, with a (claimed) range of 300 km (186 miles), which would give it the longest range of any EV in the world at present. It also has a smartphone-based information system which seems at least as advanced as anything currently available anywhere. Read More
— Electronics

MIT researchers boost energy density of lithium-air batteries

By - July 28, 2011 3 Pictures
Last year MIT researchers reported improving the efficiency of lithium-air batteries through the use of electrodes with gold or platinum catalysts. MIT News is now reporting that in a continuation of that work, researchers have been able to further increase the energy storage capacity of lithium-air batteries for a given weight by creating carbon-fiber-based electrodes. Read More
— Electronics

Flat batteries could improve performance and lower cost of energy storage

By - October 12, 2010 1 Picture
In the continuing search for ever more efficient and cheaper batteries, researchers at the Department of Energy’s (DoE) Pacific Northwest National Laboratory (PNNL) have managed to increase the performance of sodium-nickel chloride batteries in an interesting way – flattening them. No, not running them down until they’re out of juice, but rather replacing their typical cylindrical shape with a flat disc design. The redesign allows the battery to deliver 30 percent more power at lower temperatures, making them a viable alternative to lithium-ion batteries. Read More
— Bicycles

Peugeot's electric assist racing bike concept

By - October 3, 2010 12 Pictures
Tucked away on the Peugeot stand at Mondial De l’Automobile (October 2-17) is a racing bicycle with electric assist. It’s almost an identical situation to the very similar machine Lexus showed at the 2009 Tokyo Motor Show, except Lexus was subsequently prepared to give us the specs, whereas Peugeot isn’t and the Peugeot model on display is clearly still at least partially conceptual but there a few clues that indicate this “concept” is a lot more than just a styling exercise. Read More
— Computers

Wireless Magic Charger keeps Magic Mouse charged up using magic of induction

By - September 29, 2010 4 Pictures
Wireless mice are great for users who don’t like a “tail” trailing from the mouse getting tangled up with all manner of objects sitting on a desk. The only real downside is the need to replace or recharge batteries when their power runs down. For users of Apple’s Magic Mouse who are tired of constantly swapping out dead batteries for new alkalines or fully charged rechargeables, Mobee Technology has unveiled its Magic Charger. Unveiled at IFA, the device charges wirelessly using the magic of induction technology to provide around six days of power under constant use. Read More
— Environment

Just how environmentally friendly are electric vehicles?

By - August 31, 2010 1 Picture
Because they produce no exhaust gases in operation electric vehicles (EVs) are seen as the eco-friendly alternative to conventional gas-fueled cars. While zero-local emissions is clearly a big plus, other factors contributing to the overall environmental impact of EVs are often overlooked – namely the manufacture, usage and disposal of the batteries used to store the electrical energy and the sources of power used to charge them. Now, for the first time, a team of scientists from the Swiss Federal Laboratories for Materials Testing and Research (or EMPA) have made a detailed life cycle assessment or ecobalance of the type of lithium-ion batteries most frequently used in EVs, to see if they really are as environmentally friendly as their manufacturers would have us believe. Read More
— Electronics

Wax and soap could help build a better rechargeable battery

By - August 12, 2010 1 Picture
Rechargeable lithium ion batteries are used in everything from mobile phones to cars. Most of the batteries available today are designed with an oxide of metal such as cobalt, nickel, or manganese, which adds to their cost. Researchers looking for lower-priced alternatives to existing lithium ion-metal oxide batteries have discovered that a little wax and soap can help build electrodes and will allow battery developers to explore lower-priced alternatives to the lithium ion-metal oxide batteries currently on the market. Read More
— Science

Lithium-air batteries offer three times the energy density

By - April 5, 2010 2 Pictures
Lithium-air battery technology looks to have a big future. With the potential of providing energy densities up to three times that of the conventional lithium-ion batteries found in just about every portable consumer electronics device going around (not to mention the incoming wave of electric vehicles), many companies, including IBM and General Motors are pursuing work on lithium-air batteries. Now researchers at MIT have made a breakthrough that could help make the commercial development of lightweight rechargeable batteries a reality. Read More
Advertisement
Advertisement
Advertisement
Advertisement
Advertisement

Subscribe to Gizmag's email newsletter

Advertisement