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Patent Agency Ranking
公开(公告)号：US20210032122A1
公开(公告)日：2021-02-04
申请号：US17043623
申请日：2019-06-11
Applicant: Microvast Power Systems Co., LTD.
Inventor： BRYAN YONEMOTO , XIAO ZHANG
Abstract: The invention relates to a method for preparing core-shell structured particle precursor under a co-precipitation reaction. In this method, by controlling the feeding of different types of anion compositions and/or cation compositions, and adjusting the pH to match with the species, precipitated particles are deposited to form a precipitated particle slurry, filtering, and drying the precipitated particle slurry to yield the particle precursor. The invention also provides a particle precursor which includes a core-shell structure. The shell is made of gradient anions and/or cations. Such particle precursor can be used to prepare cathode of lithium-ion battery.
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公开(公告)号：US20210017040A1
公开(公告)日：2021-01-21
申请号：US17043610
申请日：2019-05-21
Applicant: Microvast Power Systems Co., LTD.
Inventor： BRYAN YONEMOTO , XIAO ZHANG , HUIJIE GUO , JIANZHAO LIU
IPC: C01G53/00 , H01M4/36 , H01M4/1391 , H01M4/525 , H01M4/04
Abstract: The invention relates to a method for preparing transitional-metal particles (cathode particle precursor) under a co-precipitation reaction. In this method, by feeding different types of anion compositions and/or cation compositions, and adjusting the pH to match with the species, precipitated particles are deposited to form a slurry, colleting the slurry, treating with water, and drying to get a cathode particle precursor. Mixing the cathode particle precursor with a lithium source and calcining to yield core-shell structured cathode active particles. Such cathode active particle can be used to prepare cathode of lithium-ion battery.
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公开(公告)号：US20190312265A1
公开(公告)日：2019-10-10
申请号：US16378554
申请日：2019-04-08
Applicant: Microvast Power Systems Co., LTD.
Inventor： BRYAN YONEMOTO , XIAO ZHANG
Abstract: The invention relates to a method for preparing cathode particles under a co-precipitation reaction by feeding NaOH and metal sulfate solution into different vessels. The invention further provides a cathode active material having the cathode particles. By the method of the invention, the number density distribution of prepared particles is much smaller than feeding NaOH and metal sulfate together into same vessel.
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公开(公告)号：US20210020913A1
公开(公告)日：2021-01-21
申请号：US17043649
申请日：2019-06-11
Applicant: Microvast Power Systems Co., LTD.
Inventor： BRYAN YONEMOTO , XIAO ZHANG
IPC: H01M4/1391 , H01M4/131 , H01M4/525 , H01M4/04
Abstract: The present disclosure provides a method for preparing full-gradient particle precursors, and the full-gradient particle precursor prepared thereby. By controlling different types of anion compositions and/or cation compositions gradually changed to other types, and adjusting the pH to match with the species, precipitated particles are deposited to form a slurry, collecting the precipitated particle, treating with water, and drying to yield the particle precursor. After being washed and dried, the particle precursor is further mixed with lithium source, after calcining to yield cathode active particles. The cathode active particles can be used to prepare cathode of lithium-ion battery.
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公开(公告)号：US20190017979A1
公开(公告)日：2019-01-17
申请号：US16035725
申请日：2018-07-16
Applicant: Microvast Power Systems Co., Ltd.
Inventor： BRYAN YONEMOTO , XIAO ZHANG , WENJUAN LIU MATTIS , ZHIFENG ZHANG
CPC classification number: G01N31/22 , B01J8/006 , B01J19/0006 , B01J2208/00557 , B01J2208/00663 , B01J2219/00707 , C01F11/24 , C01G19/02 , C01G53/006 , C01P2002/89 , G01N31/02
Abstract: The present invention provides an analytical method for precipitated particles during co-precipitation reaction, comprising: running a co-precipitation reaction in a reaction vessel to form a precipitated product; injecting a tracking metal to the reaction vessel for a given time duration; collecting the precipitated product containing the tracking metal from the reaction vessel in increments of time to obtain multiple product samples; filtering each collected product sample to separate precipitated particles from filtrate; performing elemental analysis for the tracking metal in the precipitated particles of each collected product sample, to obtain the residence time distribution of the precipitated particles in the reaction vessel according to the concentration of the tracking metal in the precipitated particles. By the analytical method, the preferred residence time of the precipitated particles in the reaction vessel can be ascertained, so that it is clear when the precipitated particles should be collected from the reaction vessel.
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