Car news / Sharp Achieves the World"s Highest Power Density for Direct Methanol Fuel Cells; Elemental Technology for the Practical Application of Fuel Cells for Mobile Equipment |
15.05.2008
Sharp Achieves the World"s Highest Power Density for Direct Methanol Fuel Cells; Elemental Technology for the Practical Application of Fuel Cells for Mobile EquipmentCar News /
Osaka, Japan, May 15, 2008 - Sharp Corporation hasachieved the world"s highest(1) power density(2), 0.3W/cc, for directmethanol fuel cells (DMFC) for mobile equipment. This new technologyenables efficient power generation from a small cell volume. Thus, theuse of this technology can make it possible to develop fuel cells thathave almost the same volume but a longer continuous-use lifespan thanlithium-ion batteries, which are the main type currently in use. Sharpwill promote further research and development for the practicalapplication of fuel cells for mobile equipment such as PDAs, electronicdictionaries, and notebook computers. Because fuel cells use energy produced by the chemical reaction betweenhydrogen and oxygen, they have a small impact on the global environment.Also, fuel cells are expected to become the next-generation powergenerating devices because of their high generating efficiency thatcomes from converting chemical energy directly into electrical energy.In particular, DMFC have a simple structure in which power is generatedthrough a chemical reaction between methanol supplied directly to thepower generation part and oxygen in the air, making them suitable forminiaturization. Therefore, since these fuel cells have great potentialfor future use in mobile equipment, active research and development onDMFC is intensifying all over the world. However, there are someproblems that need to be solved, such as their low power density thatincreases the size of the power generation part and, as a result,increases the total cell volume. Giving special attention to the power generation part"s stackstructure(3), Sharp has developed the three-dimensional highlyintegrated stack structure through the use of thin cells made bymicrofabrication. This structure can be created by the alternatelamination of reed-shaped thin cells arranged in parallel at fixedintervals and reed-shaped (porous) spacers, with the cells and spacersrunning perpendicular to each other like a grid. With this structure,uniform and continuous spaces are secured, making it possible toincrease the cell surface area per unit volume and smoothly circulatethe air that is one of the sources for power generation. Thus, Sharp hasimproved power density per unit volume and achieved the world"s highestlevel, 0.3W/cc (about 7 times greater than previous Sharp technology).In the future, through continuing to pursue the development of thiselemental technology, cell volume can be further miniaturized, and thecreation of cells with the same volume but a longer lifespan than thecurrently mainstream lithium-ion batteries can be achieved. By furtherpromoting this elemental technology in the future, Sharp will commititself to the creation of small fuel cells with a long lifespan.Sharp will announce this new technology at The 15th Fuel Cell Symposium,to be held on May 15, 2008 at Tower Hall Funabori (Funabori, Edogawa-ku,Tokyo), sponsored by the Fuel Cell Development Information Center.(1) As of May 15, 2008, taken as the unit volume for the powergeneration part of passive -type direct methanol fuel cells. (2) The output is per unit volume for the power generation part (stack).The unit is W/cc. (3) One of the units constituting the main body of fuel cell, itconsists of the assembly of several unit cells. Sharp CorporationSharp Corporation is a worldwide developer of innovativeproducts and core technologies that play a key role in shaping thefuture of electronics. As a leader in liquid crystal displays (LCDs) anddigital technologies, Sharp offers one of the broadest and most advancedlines of consumer electronics, information products and electroniccomponents, while also creating new network businesses. SharpCorporation employs about 57,600 people in the world (as of April 30,2007) and recorded consolidated annual sales of 3,127,771 million yenfor the fiscal year ended March 31, 2007. For more information, pleasevisit www.sharp.co.jp .
Dear users, on our car site you find many interesting automobile news, breaking car news, road tests. We offer: car dealers, auto dealers, buy a car, used trucks, used auto, buy new car, buy car online, sell car, sell my car, sell used car, auto sale, sell used cars, selling a car, auto loan calculator, used car prices, car reviews, car loan calculator, used car pricin.
|
|
TOP |
 |
|
|
| |
SEARCH |
|
|
|
|
|
|
|
|
18.03.2010The Volkswagen R GmbH will be the specialist for sporty exclusive models from Volkswagen in the future. Volkswagen AG has bundled the responsibilities and competencies for development, Car News / 18.03.2010 This past March at the Geneva Motor Show, the Swedish super car company Keonigsegg revealed the NLV Quant electric sedan. Well now it is the exotic Italian coachbuilder Bugatti’s turn, and Ettore’s original brand has done quite an impressive job on the all new Bugatti 16 C Galibier concept that was unveiled this past weekend in Molsheim. According to the automaker the upcoming super car will become "the most exclusive, elegant, and powerful four door automobile in the world." Car News / 18.03.2010 In addition to the forthcoming Prime Edition, Mercedes will also offer an AMG Sports package for the newly launched E-Class Cabrio. Unlike the Prime Edition, which seems to have an entire catalog of Mercedes models to choose from, the AMG Sports package will only be available for the E500 model. Car News / 29.03.2009With the debut of the 2010 Lexus HS 250h, the Toyota Prius expands into a family of vehicles that now includes a formal four-door sedan--one with a pricetag likely to hit $30,000. The HS 250h, Lexus announced this morning at the 2009 Detroit auto show, is the first luxury hybrid-only vehicle, as well as being Lexus' most fuel-efficient vehicle of all. Car News / 29.03.2009The Civic’s base price of $15,505 compares favorably with its direct competitor, the Toyota Corolla ($15,350), the outgoing Mazda 3 i Sport ($15,360), and Hyundai Elantra GLS ($14,120). Fuel economy, ever important for buyers in this segment, is a frugal 26 city, 34 highway mpg. Notably, both the Ford Focus (24/35) and Chevrolet Cobalt XFE (25/37) achieve better highway mileage. The Cobalt is tops in its class for horsepower, too, with 155. The Civic’s 1.8L engine makes 140 hp. Car News /
|
|
