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CR2032 can be charged?

Discussion in 'Electronic Design' started by terry, Nov 1, 2004.

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  1. terry

    terry Guest


    I have heard that CR2032 can be charged. Is it true?

  2. Don't bet your house on it !!
  3. Guy Macon

    Guy Macon Guest

    No. I believe that all 2032 coin cells have a pure lithium anode. If you
    try to recharge them slowly, lithium deposits cause a short. If you try
    to recharge them faster (at least in the case of a AA cell) you can get
    to the point where you have a thermal runaway, a cell that reaches the
    melting point of lithium, a ruptured case, and venting with flame. For
    a description of this happening in a rechargable AA cell, please see
    [ ].
  4. Some manufacturers have done a vanadium pentoxide lithium cell in the 2032
    size, which is a rechargeable technology, and I have also seen the
    maganese titanium lithium cells in this size. These have different
    identifier letters than 'CR' though. So some '2032' batteries may be
    recharged, but _not_ the CR2032.

    Best Wishes
  5. Guy Macon

    Guy Macon Guest

    I didn't know that the rechargables were in coin form factor.
    Thanks! (...does some serching...) Ah. Here are some:
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