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Battery Breakthrough Promises Lighter Weight, More Power

Better battery life is on the top of most people’s gadget wish lists. Now, a technology breakthrough from MIT offers hope for the mobile masses — but it will have to contend with other experimental approaches in a race to the market that could take years, experts say.

MIT researchers say they have found a way to create batteries that can offer up to three times the energy density of current batteries, while being much lighter. That paves the way for portable devices that could both be lighter and have a much longer battery life than current gadgets.

“You can get battery life in a laptop computer similar that’s three times more than what you have now, even as the battery gets three times lighter, ” Yang Shao-Horn, associate professor of mechanical engineering and materials science at MIT, told Wired.com.

While advances in material sciences and chip design have led to more powerful computers with better displays, battery life has remained a big roadblock. That’s why new battery technologies have become a major area of research. Companies such as GE and IBM are exploring the promise of a new kind of battery called lithium-air. These batteries could replace existing lithium-ion batteries.

Lithium-air batteries have a lithium anode that is electrochemically coupled to atmospheric oxygen through an air cathode. By contrast, current lithium-ion batteries have a carbon anode and a metal oxide-based cathode.

“There’s huge potential for lithium-air batteries,” says Vishal Sapru, industry manager for power and energy system at research firm Frost & Sullivan. “The combination of lithium anode and air cathode not only makes them lighter than lithium-ion but also offers higher energy density.”

Sapru estimates that a typical lithium-air battery can offer an output of 1800 watts per kilogram compared to about 120 to 350 watts per kilogram seen in lithium-ion batteries.

But so far, there has been a lack of understanding about the kinds of electrode materials that could promote the electrochemical reactions that take place in lithium-air batteries, which has held back their development, says MIT’s Shao-Horn.

The answer, she says, according to her team, lies in using gold or platinum as a catalyst.

And despite the bling factor, batteries using these precious metals could still be cost competitive, says Shao-Horn. “We need to have only the surfaces covered by these elements,” she says. “We are not using platinum and gold in the bulk of the battery.”

It’s an interesting breakthrough, agrees Sapru, but one that’s by no means guaranteed a commercial future. Other battery researchers are working on other materials, such as aluminum-polymer laminates, for instance. What will eventually reach the hands of consumers remains to be seen, he says.

“Till these technologies reach commercial manufacturing stage we can’t reliably tell how they will do in terms of costs and accessibility,” says Sapru. “While gold and platinum offer some advantages, aluminum-polymer laminates can be more flexible, so we will have to wait and see.”

Shao-Horn says her team’s ideas are still a long way from commercialization. The group is yet to perfect the chemistry of the charging and discharging processes and increase efficiency of the system, she says.

“Ultimately, just like we have different types of lithium-ion batteries today,” says Sapru, “we will have different lithium-air batteries. But all of this is a couple of years away from reaching consumers.”

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About the Author

Battery company is an operated online retailer of high-quality electronics accessories, specialising in laptop batteries and laptop adapter, battery chargers, camera batteries, camcorder batteries, power tool batteries and mobile phone batteries. Battery company has quickly grown to one of the top online Australian retailers of electronics accessories, offering generic product brands that provide the same quality as the big brand names but at half the price. Now at www.battery-company.com.au, we offer customers a wide selection of products at unbeatable prices, together with personalised customer service and fast shipping for our customers.

Camco Anode Rods $13.99 ANODE RODSThese anode rods prevent your water heater from being corroded — they corrode themselvesJust replace the 1/2″ or 3/4″ pipe thread with these anode rods to ensure that your water heater is completely safeThese anode rods are perfect to protect the Atwood/Suburban water heaters

LED FLASHING 5mm GREEN $2.95 LED FLASHING 5mm GREEN

LED FLASHING 5mm RED $2.95 LED FLASHING 5mm RED

LED FLASHING 5mm YELLOW $2.95 LED FLASHING 5mm YELLOW

LED Indicator Pack $8.95 Connect to the VEX Microcontroller Analog / Digital Ports when configured as a Digital Output. Set the line low to turn the LED On and set the line high to turn Off the LED. Compatible with VEX 2.0 and VEX Pro Digital Outputs. Use these for feedback indicators, to debug code, verify Microcontroller mode, or for cool light patterns. Pack contains: (3) Red LED Indicators, (3) Green LED Indicators, (2) Yellow LED Indicators.

Kuryakyn L.E.D. Saddlebag Moldings $252.99 L.E.D. SADDLEBAG MOLDINGS Chromed replacement lighted moldingReplace existing parts on the bike so there is no added bulkAll stock mounting points and hardware are retainedState of the art L.E.D. Lights4 pieces

Budweiser Black And White LED Picture $64.99 Retro meets the present with this circa 1940s photograph accented with LED lights for a dramatic art piece. Hardwood frame. 16″ x 20″.

Budweiser Served Here LED Sign $64.99 The past and present come together with this sign featuring the vintage look of Budweiser accented with LED lights. Hardwood frame. 16″ x 20″.

LED Roof Lamps $79.5 # PTC-9X05XX – Hummer H2 2003-2008, LED Roof Lamps. Add high quality, customized lighting products to your Car, Truck, or SUV! Lighting accessories ranging from running lights to Putco’s exclusive LED Replacement Third Brake Lights make the Pure brand the number one choice of auto customizers! Available Kits: Kit #1 – Front Boss Roof Lamps, Ion Chrome (set of 2) Kit #2 – Front Boss Roof Lamps, Ion Chrome (set of 5) Kit #3 – 2 Front Boss Lamps, 3 Middle LED Lamps – Ion Chrome Kit #4 – 2 Front Boss Lamps, 3 Middle LED, 5 Rear LED – Ion Chrome Kit #5 – 5 Front LED, 5 Rear LED – Clear Kit #6 – 5 Front LED, 5 Rear LED – Ion Chrome Kit #7 – 5 Front LED, 5 Rear LED – Smoke Kit #8 – 5 Front Boss Lamps, 5 Rear LED – Ion Chrome PUTCO Pure Light Accessories: Available for today’s top trucks! Installs easily with included hardware and simple tools. Upgrade your truck’s dull factory lights to Putco’s eye-popping Pure replacements! Some installations require some basic wiring knowledge.

Intellitronix Led Digital Tachometer $115.99 INTELLITRONIX LED DIGITAL TACHOMETERIntellitronix offers the coolest and most stunning LED digital tachometer gauges available in the market today! They feature microprocessor controls with peak RPM recall. Accurate, bright and intelligent all in one.3-3/8″ Diameter LED Tachometer.Peak RPM recall.0-9900 read out.Works on 4-6-8 cylinder engines.Choose from Blue, Green, Red or White LED with a black bezel.Limited Lifetime Warranty

Hella Led Taillamp Kit $309.99 LED Taillamp KitLED Taillamp kit has OE fit and function.LEDs perform stop/turn functionsCELIS light guides perform the taillamp & parking functionEasy plug & play installationIncreased margin of safety with fast illumination and high visibility LED brake light functionKit includes:Two LED/CELIS taillamps, cab-mounted LED brake lamp and mounting instruction

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Intellitronix Led Digital Speedometer $115.99 INTELLITRONIX LED DIGITAL SPEEDOMETERNow you can really watch your speed with the Intellitronix bright LED digital speedometer! They feature microprocessor controls with peak top speed recall. Accurate, bright and intelligent all in one.0 to 60 MPH and ¼ Mile Elapsed Time.3 3/8″ DiameterProgrammable with high-speed recall(sending unit not included).Also includes an odometer and trip odometer.Choose from Blue, Green, Red or White LED with a black bezel.Limited Lifetime Warranty

Smoke LED Tail Lights $212 # THL-30090 – Chrysler 300/300C 2005-2007, Full-Function Custom Smoke L.E.D. Taillights, 1 Pair. L.E.D. (light emitting diodes) tail lamps are a direct replacement to your factory OEM tail lights. Tail Lamps light up with LED’s in brake light function. Do not underestimate what your exterior lighting means. Leaving it alone and staying satisfied with what the factory provides will do you no favors in the end. Crystal Clear LED Tail Lights are a blistering way to make sure that your ride never becomes another OEM casualty. Inject LED power & technology into all of your existing lighting functions and witness the searing transformation your vehicle makes before your very eyes! Choices range from Crystal Clear, Bermuda Black, Carbon Fiber, and Platinum Smoke. An extreme improvement and a simple upgrade – Custom Crystal Clear LED Tail Lights put your potential in full view.

LED Smoke Tail Lights $255 # THL-31163 – Nissan Altima 2002-2006, Custom Smoke L.E.D. Taillights, 1 Pair. L.E.D. (light emitting diodes) tail lamps are a direct replacement to your factory OEM tail lights. Tail Lamps light up with LED’s in such functions as running light and brake light. The reverse and turn signal are not LED. Do not underestimate what your exterior lighting means. Leaving it alone and staying satisfied with what the factory provides will do you no favors in the end. Crystal Clear LED Tail Lights are a blistering way to make sure that your ride never becomes another OEM casualty. Inject LED power & technology into all of your existing lighting functions and witness the searing transformation your vehicle makes before your very eyes! Choices range from Crystal Clear, Bermuda Black, Carbon Fiber, and Platinum Smoke. An extreme improvement and a simple upgrade – Custom Crystal Clear LED Tail Lights put your potential in full view.

Kuryakyn L.E.D. Trunk Moldings $193.99 L.E.D. TRUNK MOLDINGS ChromeStyled to be a perfect match for our lighted saddlebag molding2 circuit L.E.Ds function as both running and brake lights for a highly visible, long lasting light sourcePlace minimal draw on electrical system

Kuryakyn L.E.D. Mirror $60.99 L.E.D. MIRROR LIGHTS Easily installedSlim construction does not detract or interfere with the viewable mirror surfaceL.E.D. lights will help vehicles at your flank or in your blind spot notice turn signal activation

Led Mini Marker Lights $18.99 LED MINI MARKER LIGHTS Easy mounting with pressure-sensitive self-adhesive backing (some drilling may be required) Lights add extra styling and take-notice visibility Compact size-approximately 1″W x 3/4″H x 2-1/2″L-makes them easy to mount almost anywhere Use as marker or running lights or auxiliary turn signals. Feature molded plastic housing with clear plastic lens, amber LED and 2 color-coded wire pigtails. Sold in pairs.

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