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Homework Help: Graphite and it's application in batteries.

  1. Dec 15, 2004 #1
    A little coursework question.
    In one of my sources, of research it says that "Graphite has a theoretical specific capacity of 372mAh/g, much higher than most other electrode materials that have proven their worth in the battery industry." I'm not sure if mAh/g is a measure of current vs. voltage. If it is relevant to the physics of my title (Graphite and it's application in batteries) then could you please explain what it is! thank you.

    Also, the same source goes on to say "It’s [graphite's] state-of-charge vs. potential profile is desirable, as the potential of the lithium graphite matrix does not depend strongly on the stoichiometric ratio of lithium to carbon," I think this may be verging on the chemistry side of things - in the way that the stoichiometric ratio is basically the mole ratio, but do you think I should mention it briefly, or not?

    Lastly, The source then goes on to say, " Intercalation and deintercalation of lithium in graphite are highly reversible, making the material quite suitable for rechargeable batteries." I think this would be very useful, if I knew what intercalculation and deintercalculation are, could you explain they are?
    Thanks in advance and Merry Christmas!
  2. jcsd
  3. Dec 15, 2004 #2
    mAh/g is milli-Ampere . hours per gram. It's used to measure charge capacity.
  4. Dec 18, 2004 #3
    Graphite has a theoretical specific capacity of 372mAh/g, but i don't understand why that makes it a good electrode?
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