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  • Recycling NCM lithium-ion batteries with citric acid

    From Jan Panteltje@21:1/5 to All on Sat Nov 16 05:22:47 2024
    Recycling batteries with citric acid

    Highly efficient recycling process for NCM lithium-ion batteries
    https://www.sciencedaily.com/releases/2024/11/241115124731.htm

    Summary:
    A simple, highly efficient, inexpensive, and environmentally friendly process
    could provide a viable pathway for the sustainable recycling of depleted lithium-ion batteries (LIBs):
    No chemicals beyond citric acid need to be added to leach out and separate
    over 99 % of the lithium, nickel, cobalt, and manganese metals contained in
    NCM batteries.
    The resulting recycled material can be directly converted into NCM electrodes, reports a research team.

    Link with more info:
    https://onlinelibrary.wiley.com/page/journal/15213773/homepage/press/202419press.html

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  • From Martin Brown@21:1/5 to Jan Panteltje on Sat Nov 16 13:38:50 2024
    On 16/11/2024 05:22, Jan Panteltje wrote:
    Recycling batteries with citric acid

    Highly efficient recycling process for NCM lithium-ion batteries
    https://www.sciencedaily.com/releases/2024/11/241115124731.htm

    Summary:
    A simple, highly efficient, inexpensive, and environmentally friendly process
    could provide a viable pathway for the sustainable recycling of depleted lithium-ion batteries (LIBs):
    No chemicals beyond citric acid need to be added to leach out and separate
    over 99 % of the lithium, nickel, cobalt, and manganese metals contained in
    NCM batteries.
    The resulting recycled material can be directly converted into NCM electrodes, reports a research team.

    Link with more info:
    https://onlinelibrary.wiley.com/page/journal/15213773/homepage/press/202419press.html

    You do get some interesting chemistry with citrates not all of it good
    for you. Natural fruit acids is not the same as harmless. Oxalic acid of rhubarb leaves and ant stings is really rather nasty.

    https://en.wikipedia.org/wiki/Nickel_organic_acid_salts

    Although cute the worry is much more about the metal ions than the acid
    used to dissolve them. The cobalt chloride pale pink "invisible ink" of
    our childhood which turns blue when heated is now deemed a carcinogen
    and all dessicants using it as an indicator were withdrawn around Y2k.

    Hydrochloric acid will dissolve all of the above metals a lot quicker.


    --
    Martin Brown

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  • From Jeroen Belleman@21:1/5 to Martin Brown on Sat Nov 16 15:15:04 2024
    On 11/16/24 14:38, Martin Brown wrote:
    On 16/11/2024 05:22, Jan Panteltje wrote:
      Recycling batteries with citric acid

    Highly efficient recycling process for NCM lithium-ion batteries
      https://www.sciencedaily.com/releases/2024/11/241115124731.htm

    Summary:
      A simple, highly efficient, inexpensive, and environmentally
    friendly process
      could provide a viable pathway for the sustainable recycling of
    depleted lithium-ion batteries  (LIBs):
      No chemicals beyond citric acid need to be added to leach out and
    separate
      over 99 % of the lithium, nickel, cobalt, and manganese metals
    contained in
      NCM batteries.
      The resulting recycled material can be directly converted into NCM
    electrodes, reports a research team.

    Link with more info:

    https://onlinelibrary.wiley.com/page/journal/15213773/homepage/press/202419press.html

    You do get some interesting chemistry with citrates not all of it good
    for you. Natural fruit acids is not the same as harmless. Oxalic acid of rhubarb leaves and ant stings is really rather nasty.

    https://en.wikipedia.org/wiki/Nickel_organic_acid_salts

    Although cute the worry is much more about the metal ions than the acid
    used to dissolve them. The cobalt chloride pale pink "invisible ink" of
    our childhood which turns blue when heated is now deemed a carcinogen
    and all dessicants using it as an indicator were withdrawn around Y2k.

    Hydrochloric acid will dissolve all of the above metals a lot quicker.



    Yes, another example of blatant green washing. Citrates are 'natural'
    so they must be harmless, right?

    Not!

    Jeroen Belleman

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