Recycling of Lithium Ion Electrodes

Votes: 3
Views: 356

This process is an electrochemical process that effectively leaches cobalt and other valuable constituents from Li-ion battery electrodes. A reductant is used to solubilize the metal species in a dilute acid solution. Typical recycling process reactions usually require elevated temperatures and multiple hours for completion. INL’s process helps lower the cost of the recycling process. It uses inexpensive materials and can easily be scaled. It also uses less input chemicals. Both of these translate to lower cost and energy usage.

Researchers at INL have developed a process that effectively leaches cobalt and other valuable constituents from Li-ion battery electrodes at room temperature with short reaction times. This method has been extended to an electrochemical process which minimizes the amount of reducing agent needed and provides an inexpensive and scalable process for the cobalt recovery. The lower acid content is compatible with known metal extraction conditions needed for multi-metal battery chemistries (see attached figure).

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  • ABOUT THE ENTRANT

  • Name:
    Donna Baek
  • Type of entry:
    team
    Team members:
    Tedd Lister, Luis Diaz Aldana
  • Profession:
    Scientist
  • Donna is inspired by:
    Dr. Donna Ly Baek is a research chemist at Idaho National Laboratory specializing in supercritical fluids and metal extraction. At INL, she contributes her knowledge on supercritical fluid extraction to develop a supercritical fluid extraction and separation technique for recovering and recycling rare earth elements (REE).

    Dr. Fox is a senior chemical research scientist actively involved in proposing, capturing, performing, and directing innovative scientific research in the areas of analytical chemistry, process chemistry, electrochemistry, supercritical fluid sciences, nanomaterials synthesis and characterization, metal –complexation reactions, lanthanide and actinide separations, renewable and biofuel synthesis, geochemistry, environmental radiochemistry, LIBS atomic spectroscopy, laser spectroscopy, and molecular spectroscopy.

    Dr. Tedd Lister is an electrochemical scientist with Idaho National Laboratory with broad experience in energy storage, electrolysis, electrodeposition, and analytical electrochemistry. His work involves energy conversion reactions and surface processing for materials applications, also corrosion research, both applied and basic.
  • Patent status:
    pending