Jelly-based lithium battery developed by Leeds researchers

By Shawn Knight
Sep 12, 2011
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  1. Researchers from the University of Leeds have developed a polymer jelly that could make batteries of the future safer, cheaper, smaller and more powerful. The technology could lead to thinner…

    Read the whole story
  2. Jelly based battery for electric cars? I can't help but be reminded of the movie Demolition Man. That's cool.
  3. yorro

    yorro TechSpot Enthusiast Posts: 244

    It's pure capacitance gel!
  4. Dermund

    Dermund Newcomer, in training

  5. "electric cars are much more efficient than gasoline-powered vehicles" Actually they're not.
    "gasoline has 40x the energy per gram, compared to lithium batteries" and these batteries cost $100/lb. Lead acid batteries are 400x less efficient than gas by weight.
    http://muller.lbl.gov/teaching/Physics10/old%20physics%2010/physics%2010%20notes/Electric%20cars%20.html
  6. Will they be edible?
  7. Still not a Mr Fussion. I want to run my car on a bannana peel and soda can.
  8. Perhaps what they meant is how much of the energy from the gasoline is actually used by the car rather than lost through the heat. With batteries most of the energy from the batteries is used by the car and thus is more efficient than gasoline in which only around 30 percent of the energy is actually used while the rest is lost through heat. However if you're just talking about pure energy, gasoline has more energy per weight than battery. Same reason why jet fuel is very very very expensive because per weight, it provides a lot of energy.
  9. Zecias

    Zecias TechSpot Booster Posts: 202

    except electric car batteries aren't made out of lithium........
    if they were, they would weigh much, much more.
    i don't know where you got that from, but most electric cars use a type of lanthanum battery that is much more weight efficient.
    gas powered car are very inefficient, they only use about 20% of the generated energy. Compared to the nickel metal hydride(lanthanum + mixture of other metals) battery with an efficiency of about 70%. Most electrical cars require gas to run and the energy also comes from inefficient powerplants, so that bring the efficiency down a bit. The electrical cars are still more efficient though.
  10. Nice owneship there. You got him owned!
  11. tengeta

    tengeta TechSpot Enthusiast Posts: 632

    if lithium is exposed to oxygen, it explodes. end of story.
     
  12. True. It's not like gasoline is all safe anyways so there's some drawbacks but now the question is whether the advantages outweighs the disadvantages which it seems to be the case here.


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