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1.发明申请公开(公告)号：US20220393508A1
公开(公告)日：2022-12-08
申请号：US17751658
申请日：2022-05-23
发明人： Kevin Li , James Wang , Jeff Zhang , Danny Ma , Lavin Li , Terrence Zeng
摘要： A nanocrystalline magnetic conductive sheet for wireless charging and a preparation method therefor are provided. The nanocrystalline magnetic conductive sheet includes a composition of Fe(100-x-y-z-α-β-γ)MxCuyM′zSiαBβXγ, saturation magnetic induction is greater than or equal to 1.25 T. The preparation method includes preparing an alloy with a preset composition of into an alloy strip with an initial state of amorphousness by a single roll rapid quenching method, annealing an amorphous alloy strip according to a preset annealing process, to obtain a nanocrystalline strip, performing a magnetic fragmentation process on the nanocrystalline strip, to obtain the nanocrystalline magnetic conductive sheet for wireless charging.
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2.发明授权公开(公告)号：US11770022B2
公开(公告)日：2023-09-26
申请号：US17751658
申请日：2022-05-23
发明人： Kevin Li , James Wang , Jeff Zhang , Danny Ma , Lavin Li , Terrence Zeng
CPC分类号： H02J50/10 , C22C45/02 , H01F1/15308 , H01F1/15333 , H01F1/15341 , H01F27/36 , H02J50/70
摘要： A nanocrystalline magnetic conductive sheet for wireless charging and a preparation method therefor are provided. The nanocrystalline magnetic conductive sheet includes a composition of Fe(100-x-y-z-α-β-γ)MxCuyM′zSiαBβXγ, saturation magnetic induction is greater than or equal to 1.25T. The preparation method includes preparing an alloy with a preset composition of into an alloy strip with an initial state of amorphousness by a single roll rapid quenching method, annealing an amorphous alloy strip according to a preset annealing process, to obtain a nanocrystalline strip, performing a magnetic fragmentation process on the nanocrystalline strip, to obtain the nanocrystalline magnetic conductive sheet for wireless charging.
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