24 Matching Annotations
  1. Mar 2018
    1. What is claimed is:

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    2. Design or demand specifications deter mine material parameters for a recycled battery by identi fying a molar ratio and elements of cathode materials corresponding to a charge material chemistry of a recycled battery.
    3. For the recovery and synthesis of LiNiCoAlO. there are at least two approaches.
    4. it is desirable that the batteries be of a single stream chemistry (LiNiCoAlO) however if there are other chemistries present in the LiMO (where M is manganese, as well as Ni, Al and Co), the manganese can be removed from Solution. Ni, Co and Al can be used to precipitate precursor and synthesize cathode materials.
    5. Battery chemistries including aluminum (Al) are becoming popular for applications such as electric vehicles, using chemistry Such as LiNiCoAlO. Conventional approaches for recovering active materials from lithium ion batteries with chemistry LiNiCoAlO in a manner that can be used to make new active materials for new lithium ion batteries have been met with several shortcomings.
    6. It can be complex to sort out lithium ion batteries based on the battery chemistry and conventional methods cannot effectively recycle lithium ion batteries with mixed chemistries because different procedures are required to separate the respective compounds for reuse as active cath ode material.
    7. Primary functional parts of the lithium-ion battery 140 are the anode 160, cathode, 162 electrolyte 168, and separator 172. LIBs use an intercalated lithium compound as the electrode materials.
    8. Physical separation is applied to remove the battery cases (plastic) and electrode materials, often via magnetic separation that draws out the magnetic steel.
    9. The proposed approach is an example and is applicable to other lithium and non-lithium batteries for recycling spent batteries and recovering active cathode material suitable for use in new batteries.
    10. is a process flow diagram of recycling lithium-aluminum ion batteries

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    11. is a diagram of recycling the cathode material in the battery

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    12. FIG. 1 is a context diagram of a battery recycling environment Suitable for use with configurations herein;

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    13. It should be noted that although the methods and apparatus disclosed herein employ Li-ion bat teries as an example, the principles are intended as illustra tive and could be applied to other types of cathode materials suited to other battery chemistries.
    14. The recovered precursor material NiCoAl(OH) or NiCo(OH) can be used for making new LiNiCoAlO, or LiNiCoO cathode materials.
    15. he solution includes recovering active materials from lithium ion batteries with LiNiCoAlO. chemistry in a manner that can be used to make new active materials for new lithium ion batteries.
    16. Unfortunately, conventional approaches to the above approaches Suffer from the shortcoming that recycling approaches include high temperature processes to separate the compounds of the desirable materials of cobalt, manga nese, nickel and lithium.
    17. While 97% of lead acid batteries are recycled, such that over 50 percent of the lead supply comes from recycled batteries, lithium ion batteries are not yet being recycled widely.
    18. The disclosed approach results in synthesis of cathode materials (particularly valuable in Li-ion batteries) from recycled components. In contrast to conventional approaches, the disclosed approach does not separate Ni, Mn, and Co out. Instead, uniform-phase pre cipitation is employed as starting materials to synthesize the cathode materials as active charge material Suitable for new batteries.
    19. Current recycling procedures for Li-ion cells are generally focused on LiCoO cathode materials. Although some posted their methods to recycle more kinds of cathode materials, all are complex and not necessarily economical or practical.
    20. In short, recycling of lithium ion batteries not only protects the environment and saves energy, but also presents a lucrative outlet for battery manufacturers by providing an inexpensive Supply of active cathode material for new batteries.
    21. Additionally, battery disposal would require that fresh metals be mined for cathode material, and mining has a much bigger environmental impact and cost than simple recycling would.
    22. Recycling of the charge material in the lithium batteries both reduces waste volume and yields active charge material for new batteries
    23. Exhausted LIBs undergo a physical separation pro cess for removing Solid battery components, such as casing and plastics, and electrodes are dissolved in a solution for extracting the useful elements Co (cobalt), Ni (nickel), Mn (manganese), and Li (lithium), from mixed cathode materi als and utilizing the recycled elements to produce active materials for new batteries