Slashdot Mirror


NEC Unveils Methanol-Fueled Laptop

genericplacebo writes "Japanese computer giant NEC Corp. Monday revealed a prototype of a laptop computer that runs on a methanol fuel cell instead of a rechargeable battery, and said it will start selling it next year. NEC initially plans to introduce a computer with a fuel-cell system able to run for five consecutive hours on a single cartridge of methanol fuel, but also plans to make a PC within two years that can run continuously for as long as 40 hours."

13 of 363 comments (clear)

  1. Cost? by levin · · Score: 4, Interesting

    So . . . how much will it cost to recharge/replace the fuel cell?

    --

    `which fortune`
    1. Re:Cost? by Smidge204 · · Score: 3, Interesting

      You remember those stories about how drinking "moonshine" (homemade) alcohol can make you go blind?

      That's because of methanol.

      Methanol = industrial alcohol (poisonous)
      Ethanol = grain alcohol (drinkable)

      Gonna be awfully hard to use a laptop when you can't see!
      =Smidge=

  2. Methanol? by Ungrounded+Lightning · · Score: 2, Interesting

    It uses METHanol?

    Leak or vent even a little of that onto/into the user and he could go blind.

    Even WITHOUT surfing porn sites. B-(

    --
    Bantam Dominique roosters crow a four-note song. Once you've heard it as "Happy BIRTHday" you can't NOT hear it that way
    1. Re:Methanol? by DarkMan · · Score: 2, Interesting

      Not quite.

      It will only adversly affect vision when consumed. Getting methanol on your hands has an unpleasent smell and leaves the skin feeling really yucky [0]. If you leave it there for prolonged times, then it can cross the skin, but I'm not convinced that's a significant danger in a consumer product (given that people will tend to go an wash it off should it get spilt).

      Methanol/Ethanol solutions are available from my high street - it's not that dangerous.

      In fact, I'd rate it about as dangrous as boiling water, or there abouts. Even if consumed, there is an appreciable quantity before the effects kick in [1]. So, yes, drinking the contents of a methanol cartidge will be really unpleasnt, and probably have perment nasty effects. Just like drinking the contents of your typical battery, in fact. [2]

      [0] I was a lab chemist, that's from experience.

      [1] The real problem is vodka that's contaniated with methanol. It's cheap, and the sort of people who tend to buy that drink enough to get retinal damage. It's not skin contact.

      [2] Ok, yes, it would be easier to crack open a methanol cartridge and drink that. It's all about levels of risk.

  3. An application does exist! by silverhalide · · Score: 3, Interesting

    I see most people scoff at the idea of buying fuel cell cartridges for their laptop. Well, then this laptop isn't for you -- you have easy access to electricity. This is revolutionary because now you have a portable computer ANYWHERE, and you can recharge it with a little cartridge instead of lugging a huge generator with you.

    Hello military and 3rd world applications. I can see a brand new market -- deploy some these bad boys, set up a wireless access point, and you have an instant internet community with no other power infrastructure.

    This is another step in getting computing power to the third world and closing the digital divide.

  4. Why Methanol??? by dtjohnson · · Score: 4, Interesting

    Methanol is a very potent neurotoxin, is relatively volatile, and has a much lower energy storage density than ethanol. Ethanol is relatively non-toxic by comparison (unless you imbibe very heavily), is less volatile, contains much more energy per mass or volume unit, and can be made and distilled to an acceptable grade by just about anyone, anywhere.

  5. Heat and efficiency by StriderA · · Score: 2, Interesting

    Sure, but what about heat?

    Reading some information on various fuel cells, it mentions various types, the coolest being the Direct Methanol Fuel Cells (DMFC) which runs at about 120-190 degrees F (about 50-100 deg C) which would require their own heat problems, which are already a big deal with laptops. Aside from all the "what about on airplanes" questions, I'm wondering about how well the laptop will run at those temperatures. They'll have to swap out some components comming standard on laptops nowdays (s-video/etc) in exchange for fans.
    If you want longer battery life, you can get more batteries, so the only real advantage I see is they're safer for the environment in the long run.

    I'm thinking I'll wait until they become more widestream and they have some of those issues worked out before I jump on that wagon.

    --
    "When will this FP stuff stop?" "After the great growing..." "The great growing?" "Yea, when people grow up."
  6. How much do you expect methanol to cost? by MasteroftheVoxel · · Score: 4, Interesting

    I'm surprised at how many slashdotters are suspicious about this technology.

    Methanol is *extremely* cheap to make. We are talking about buying a gallon or two for less than a dollar. Yes, it is flammable but not like gasoline. There isn't a risk of explosion. Do you ever worry about your lighter exploding in your pocket? Yes, its poisonous but only if you drink it. Ever drink glass cleaner or windshield wiper fluid? Didn't think so. Its sort of like that. Its much worse to drink gasoline (we use it all the time in cars and how many people are poisoned by that?) and opening a laptop Lithium-ion or Nicad battery and eating the contents is far worse.

    I'm surprised at how happy people are with laptop batter performance these days. You are lucky to get 4 hours, especially if the battery is old. YOu can get more, but the batteries get very heavy! Methanol, on the other hand, is quite light.

  7. Re:So what by Glonoinha · · Score: 2, Interesting

    I used to use lab grade methanol to clean computers. Takes the dirt and grime right off an old IBM PC/AT case, with the paint coming off if you rub a little longer.

    Built like tanks, those old IBM machines.

    --
    Glonoinha the MebiByte Slayer
  8. Re:Well by Beryllium+Sphere(tm) · · Score: 3, Interesting

    >By definition a catalyst is not consumed in the reaction, and so theoretically, it should not be necessary to replace it for a very long time.

    Precisely correct. The open question is whether impurities in random cheap methanol sources will poison the catalyst, like running leaded gas through a car with a catalytic converter.

  9. Does nobody notice that we are walking in-place??? by evilviper · · Score: 1, Interesting

    You know, battery life on notebooks really bugs me... No matter what advancements in battery technology there is, no matter how many energy saving features (eg. ACPI) there are, battery life stays very close to the 3 hour mark...

    Why the hell do they keep doing that??? It's like notebook makers all get together and say: "With this new technology, we can double the run-time of our notebooks... Better make the battery half as large..." Is this some sort of scam to get people to buy PDAs? My 486 notebook ran just as long as my brand-new notebook! Why don't manufacturers even try to increase the battery life?

    Better yet, why should I get this new technology, when it's just going to have approximately the same battery life as the oldest notebooks? I know they are promising 5 hours, but I'd bet they'll reduce that to 3-4 hours by time they hit shelves, and I bet the real-life batter time is closer to 3 hours as well...

    Maybe it's just that I'm the only one on the planet that wants a notebook that will work longer than 3 hours between recharges??? Must not be, because Sony seems to be doing well with their double-battery notebooks (hot-swapable), so somebody else must want longer life. Why not reduce the power drain for notebook components rather than going to the fastest technology when it is just effecient enough to allow you to maintain the same run-times?

    You know, it's time I opened my own computer company just to do this all-too-obvious stuff... VCs welcome!

    --
    Slashdot gets worse every day... Pipedot: News for nerds, without the corporate slant
  10. Re:Start lobbying Congress now... by RALE007 · · Score: 2, Interesting
    "Laptop manufacturers might as well dream up a laptop powered by U-235"

    I'm curious as to the real pro's and con's of that (sarcastic) suggestion. Radioactive materials are already present in many products, U-235 can already be aquired by any bad guy with half a brain or a deep enough wallet, so why not? I (honestly) would love to hear all the reaons why I'm stupid for asking "why not?". I'm not trolling I really mean it, someone enlighten me on something I don't know much about.

    --
    Beware blue cats moving at .99c
  11. Re:Start lobbying Congress now... by galen · · Score: 2, Interesting

    The whole point of banning bic-type lighters in checked baggage is that under the low pressure conditions that exist in the cargo hold they can explode or leak. They've never been disallowed in carry-on because the cabin is pressurized. It's just common sense.