MIXED CATHODE UPCYCLING
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United States of America Patent
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Issued Date -
Mar 7, 2024
app pub date -
Sep 2, 2022
filing date -
Sep 5, 2021
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Abstract
A method for recycling secondary battery charge materials includes a one-step molten-salt process to upcycle mixed Ni-lean polycrystalline NMC cathodes into Ni-rich single-crystal NMC cathodes. The method includes receiving a recycling stream of charge materials from end-of-lifetime batteries, adding additional charge materials based on an upcycled battery chemistry intended for the upgraded, recycled battery, and sintering the combined charge materials for generating a single crystal charge material corresponding to the upcycled battery chemistry using a molten salt direct recycling process.
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