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Battery swelling question

Discussion in 'General Hardware' started by Derek12, Jun 1, 2012.

  1. Derek12

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    Because I saw a thing that puzzled me:

    I had an old phone (Sony Ericsson T100) stored for 4 years more or less in a drawer, in a perfectly working state, nobody touched it since, and when I come to it I saw the phone almost destroyed, due the battery (Li-ion), that it was inside, was very swollen but not exploded or anything.

    How is it possible a battery to swell if it was resting during that time?????????????? after seeing this, I am now charging a very old laptop that was resting too without any use with its battery inside but it seems fine.

    Many thanks!

    EDIT: Here are some pics of the battery

    [​IMG]
    [​IMG]
    Last edited: Jun 1, 2012
  2. temp02 New Member

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    Funny thing, I also let a couple of batteries from my previous phone, Ericsson R600, die as a result of not being used used for longer than a month. My guess is that the phone completely dried the batteries charge and then the small amount of humidity naturally existing on air ruined it.
    Derek12 says thanks.
  3. brandonwh64

    brandonwh64 Addicted to Bacon and StarCrunches!!!

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  4. Derek12

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  5. bencrutz

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    batteries may also swell due to heat. what was the storage temps?
    also, store batteries with 30 - 40% of charge, and make sure you remove / disconnect them from the device.
    Derek12 says thanks.
  6. Derek12

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    Thanks, the battery was at room temperature, inside of the phone, as of the charge, I do not remember exactly as it was 4 years ago more or less.
  7. cadaveca

    cadaveca My name is Dave

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    Leaving batteries installed is where things went wrong. If storing electronics for any lengthy period of time, abtteries should all be removed, no matter the device. I pull CMOS batteries from the boards I review before putting them into storage, even.

    Ben Crutz here has the right advice.
    Derek12 and 95Viper say thanks.
  8. 95Viper

    95Viper

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    The responses given are just a few of the many correct answers it could be.
    What you are seeing is the result of the cause.
    And, the results could have been be worse.
    Those wonderful devices that supply power for your devices could be hazardous to you.

    This final report from the National Fire Protection Association's web site, "Lithium-Ion Batteries Hazard and Use Assessment", covers many types of li-ion batteries and is a wealth of info on them.
    you may want to read the section "Cell and Battery Failure Modes - Non-Energetic Failures" on page 62.

    Quote from that section:
    Derek12 says thanks.
  9. ThE_MaD_ShOt

    ThE_MaD_ShOt

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    Hi! I'm from the Internet
    I also pull batteries from anything that is going to be stored for any length of time.
    Derek12 says thanks.
    Crunching for Team TPU
  10. Derek12

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    Many thanks to all specially 95Viper for the very helpful and interesting report :)

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