It will certainly be some time before we see fuel cells used in digital cameras but it's worth noting that development fuel cells is accelerating. Toshiba today announced a small methanol fuel cell which weighs just 8.5 g (0.3 oz) and can produce 100 mW of power. Toshiba describe this new unit as "small enough for integration into a wireless headset for mobile phones, but still efficient enough to power an MP3 music player for as long as 20 hours on a single 2cc charge of highly concentrated methanol. The new fuel cell outputs 100 milliwatts of power, and can continue to do so, non-stop, for as long as users top up its integrated fuel tanka process that is as simple as it is safe."
Toshiba Announces World's Smallest Direct Methanol Fuel Cell With Energy Output of 100 Milliwatts
Tokyo -- Toshiba Corporation, the world leader in fuel-cell technology for handheld electronic devices, today announced the prototype of a highly compact direct methanol fuel cell (DMFC) that can be integrated into devices as small as digital audio players and wireless headsets for mobile phone.
At a compact 22 x 56 x 4.5mm (maximum of 9.1mm, for the fuel tank), the slim prototype DMFC is as long and wide as a woman's thumb, a size advantage that will give greater design freedom for developers of handheld electronic devices. The latest prototype, with its total weight only 8.5g, is small enough for integration into a wireless headset for mobile phones, but still efficient enough to power an MP3 music player for as long as 20 hours on a single 2cc charge of highly concentrated methanol. The new fuel cell outputs 100 milliwatts of power, and can continue to do so, non-stop, for as long as users top up its integrated fuel tanka process that is as simple as it is safe.
The new DMFC adopts a "passive" fuel supply system* which feeds methanol directly into the cell. In developing a passive DMFC, Toshiba found a solution to the potential problem of "methanol crossover," in which methanol and oxygen combine without an energy-producing reaction. The company has optimized the structure of the fuel cell's electrodes and polymer electrolyte membrane that trigger the reaction. This approach allows use of a highly concentrated methanol solution** as a fuel, which also overcomes a major obstacle to small fuel cells: achieving a very small fuel tank. The cumulative result of these advances is the world's smallest 100mW fuel cell; a more compact, more efficient DMFC that outperforms its predecessors by a factor of five in terms of power output.
Toshiba is a recognized leader in development of active DMFC for PCs and other portable devices. The company's latest announcement confirms its parallel leadership in passive fuel cells that can power the smallest portable devices on the market. Today's announcement demonstrates that Toshiba remains a step ahead of its competitor's in fuel cell miniaturization and operating efficiency. Toshiba expects to commercialize DMFC for PCs in 2004 and for smaller handheld devices in 2005.
* Active and Passive Fuel Supply System
Two types of DMFC are being brought to products: "active" and "passive". Active systems use a pump and fan to feed methanol and oxygen into a cell stack, where the oxygen reacts with the methanol to produce electricity. Active systems are more complex and output more energy than passive systems, and are better suited for larger fuel cells. However, passive DMFC have a simpler structure that requires no pump or fan, and use the concentration gradient to deliver and circulate methanol and oxygen in the cell stack.
** Methanol Concentration
Methanol in a fuel cell delivers power most efficiently when mixed with water in a concentration of less than 10%a dilution requiring a fuel tank that is much too large for use with portable equipment. Toshiba overcame this and developed a system that allows a higher concentration of methanol to pass into the cell stack and produce electricity efficiently. As the result, Toshiba's new DMFC realizes a fuel tank less than 1/10 the size of that required for storing the same volume of methanol in a concentration of less than 10%.
||Direct Methanol Fuel Cell|
|Size||Thinnest: W22 x L56 x H4.5mm
Fuel tank: H9.1mm
|Weight||8.5 g including 2cc of methanol fuel inside the tank|
|Fuel Tank Size||2cc|
|Fuel||Methanol (99.5 percent concentration)|
Basic Concept of DMFC
Nov 21, 2006
Jun 28, 2006
Mar 29, 2005
Jun 14, 2007
|Nectar Dancing by Lensmate|
from A Big Year - birds
|Sad clown by PEB|
|Mtl Gen X 2015 DP by MarioSS|
from - Gen X - (In Full Colours+ Border)
In this article, expert macro photographer Thomas Shahan shares advice for successful closeup photography of bugs, insects and small animals.
DJI's new firmware makes it difficult to fly in restricted airspace, even when you have proper clearance. Is DJI placing themselves between professionals and the FAA?
Go behind the scenes with National Geographic photographer Renan Ozturk and see what it takes to capture a dangerous, harrowing, stunning Nat Geo photo essay.
Erez Marom tells the story behind this ominous photo of the sand 'reaching up' towards the mountains at Skagsanden beach in Norway. He calls this photo 'Torment.'
DPReview staffer Carey Rose has taken the Panasonic Leica DG 15mm F1.7 along for everything from a city-side boat ride to a bachelor party across the mountains. Find out how the little Leica fared.
Canon just unveiled the largest 12-ink printer on the market. The new imagePROGRAF PRO-6000 printer can make prints from 17 all the way up to 60 inches wide.
"Standing in one of the holiest places on earth, I felt uneasy," writes Wired's Jason Parham. "Most of my fellow visitors, I realized with a brief bloom of nausea, were taking selfies."
Christopher Nolan's Dunkirk has been receiving great reviews, but it's a challenge to see it in its full glory. This handy infographic reveals the aspect ratio chaos that is wrought as the industry retreats from film.
Anti-bullying organization Ditch the Label's Annual Bullying Survey 2017 reveals yet again that Instagram, more so than any other social network, has a the worst effect on youth mental health.
It's been a crazy day for innovative patent news. Apparently Sony is thinking of developing a medium format curved sensor camera.
An update to the Silkypix Raw converter fixes some bugs and adds support for several popular new cameras.
This crazy custom-built underwater camera shoots 8x10 large format film. It's supposedly "the first successful underwater 8x10 ever made," and it can be yours for $5,800... plus shipping.
Blackmagic just reveled a new accessory for their Cintel Film Scanner. The Cintel Audio and KeyKode Reader can capture KeyKode data and high-quality audio from film in real-time as it is being scanned.
A new Nikon patent shows a lens designed for a curved full-frame sensor. Could this be the high-end Nikon mirrorless camera people are hoping for?
The ability to shoot images at 1,000 fps first appeared in a Sony smartphone sensor. Now the Japanese manufacturer is using the same feature for industrial applications.
Astronomy expert and photographer Dr. Tyler Nordgren thinks you should "see your first eclipse, photograph your second." But if you do plan on taking photos this August, here are a few tips from someone who's been there.
How confident are you that you can spot a manipulated photo? A recent study at the University of Warwick shows that many people are pretty bad at it.
If you purchased a Leica TL2, do NOT attach Leica's Visoflex electronic viewfinder. Leica is working on a fix, but for now, it's possible the viewfinder will break your camera.
Google just released Motion Stills for Android. Unlike the iOS version, the Android app uses a redesigned video processing pipeline that processes each frame of a video as it is being recorded, creating instant results.
A huge copyright lawsuit between photography firm VHT and Zillow Group is heating up again, as both sides appeal a court ruling that granted VHT $4 million in damages.
European Space Agency astronaut Thomas Pesquet spent 6 months on board the International Space Station where he worked with Google capturing spheric panorama images that are now available in Street View.
It's official. PDN has confirmed with parent company Aurelius that 94-year-old lighting company Bowens is indeed going out of business.
The newly launched firmware version 1.06 fixes AF-issues that can occur with some lenses that are not officially compatible with the MC-11 converter.
Voyager is a waterproof smart light stick you can control entirely from your phone. The light has already blown past its $300K funding goal on Indiegogo.
2018 is the last year Photokina will take place during the traditional end-of-September dates. In 2019, Photokina will take place from the 8th to the 11th of May.
The Canon IXUS 50 (known as the SD400 Digital ELPH in North America) was one of a string of high-performing, pocketable PowerShots of the mid-2000s. In this week's throwback Thursday, Barney casts his mind back to 2005.
A close look at the EOS 6D II's Raw files suggest its dynamic range has taken a significant step backwards compared with the company's recent DSLRs. We look at how much difference this might make for your photos.
With a full-production review unit in our hands, we've got over 100 production samples from the new Canon EOS 6D Mark II to share.
Need a break from your day? Kick back and watch the making of a somewhat unconventional mojito filmed on Canon's new EOS 6D Mark II.
The Bonfoton Camera Obscura Room Lens can turn any room into a camera obscura, projecting the view from your window onto the walls of your room.