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1.发明授权公开(公告)号：US12095093B2
公开(公告)日：2024-09-17
申请号：US17250688
申请日：2019-03-06
IPC分类号： H01M4/00 , B01J21/06 , B01J23/72 , B01J23/745 , B01J23/755 , B01J27/125 , B01J27/128 , B01J27/25 , B01J35/40 , B01J37/02 , B01J37/08 , C01B32/159 , C01B32/162 , H01M4/36 , H01M4/38 , H01M4/48 , H01M4/62 , H01M10/0525 , H01M4/02
CPC分类号： H01M4/625 , B01J21/06 , B01J23/72 , B01J23/745 , B01J23/755 , B01J27/125 , B01J27/128 , B01J27/25 , B01J35/40 , B01J37/0236 , B01J37/08 , C01B32/159 , C01B32/162 , H01M4/364 , H01M4/386 , H01M4/483 , H01M10/0525 , C01B2202/02 , C01B2202/06 , C01B2202/22 , C01B2202/34 , C01B2202/36 , C01P2002/72 , C01P2002/82 , H01M2004/021 , H01M2004/027
摘要： The invention relates to a silicon-based anode material for a lithium-ion battery, a preparation method therefor, and a battery. The silicon-based negative electrode material is prepared by the compounding of 90 wt %-99.9 wt % of a silicon-based material and 0.1 wt %-10 wt % of carbon nanotubes and/or carbon nanofibers which grow on the surface of the silicon-based material in situ.
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2.发明申请公开(公告)号：US20220131154A1
公开(公告)日：2022-04-28
申请号：US17250688
申请日：2019-03-06
IPC分类号： H01M4/62 , B01J21/06 , H01M4/48 , B01J27/25 , B01J27/125 , B01J27/128 , B01J23/72 , B01J23/755 , B01J23/745 , C01B32/162 , B01J35/02 , H01M4/38 , H01M4/36 , H01M10/0525 , C01B32/159 , B01J37/02 , B01J37/08 , H01M4/02
摘要： The invention relates to a silicon-based anode material for a lithium-ion battery, a preparation method therefor, and a battery. The silicon-based negative electrode material is prepared by the compounding of 90 wt %-99.9 wt % of a silicon-based material and 0.1 wt %-10 wt % of carbon nanotubes and/or carbon nanofibers which grow on the surface of the silicon-based material in situ.
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3.发明公开公开(公告)号：US20240213462A1
公开(公告)日：2024-06-27
申请号：US18558100
申请日：2021-08-10
发明人： Fei Luo
IPC分类号： H01M4/38 , H01M4/02 , H01M4/04 , H01M4/62 , H01M10/0525
CPC分类号： H01M4/386 , H01M4/0416 , H01M4/625 , H01M10/0525 , H01M2004/021 , H01M2004/027
摘要： The structure of cathode material for a silicon-based lithium ion battery is that carbon atoms are uniformly dispersed and distributed in a silicon (II) oxide matrix on an atomic scale. The average particle diameter D50 of the particles in the cathode material for the silicon-based lithium ion battery is 1 nm to 100 μm, and the specific surface area is 0.5 m2/g to 40 m2/g; and the mass of the carbon atoms accounts for 0.1% to 40% of the mass of the silicon (II) oxide matrix. In the disclosure, a carbon-containing gas source is introduced during the preparation process of silicon (II) oxide, and the distribution of carbon atoms in the silicon (II) oxide is bulk phase distribution, the cathode material has carbon bulk phase doping, which improves the electrical conductivity of the material and the cycling stability of lithium ion batteries.
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4.发明公开公开(公告)号：US20230369572A1
公开(公告)日：2023-11-16
申请号：US18246727
申请日：2021-03-02
发明人： Yingying Yin , Bonan Liu , Fei Luo , Hong LI
IPC分类号： H01M4/36 , H01M10/0525 , H01M10/052 , H01M4/134 , H01M4/38 , H01M4/587 , H01M4/133 , C01B33/113
CPC分类号： H01M4/366 , H01M10/0525 , H01M10/052 , H01M4/134 , H01M4/386 , H01M4/587 , H01M4/133 , C01B33/113 , H01M2004/021
摘要： A negative electrode material on which a metal element is gradient-doped and an application thereof. The negative electrode material comprises a granular silica/M composite material on which a metal element M is gradient-doped. The general formula of the silica is SiOx, wherein 0
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5.发明公开公开(公告)号：US20240222611A1
公开(公告)日：2024-07-04
申请号：US18558089
申请日：2021-08-10
发明人： Fei Luo
CPC分类号： H01M4/386 , H01M4/0471 , H01M4/364 , H01M4/366 , H01M4/583 , H01M4/625 , H01M10/052 , H01M2004/021 , H01M2004/027
摘要： A negative electrode material comprises: carbon atoms uniformly distributed in a silicon oxide matrix at an atomic level; the carbon atoms are bonded to silicon atoms to form disordered C—Si bonds, and an X-ray diffraction energy spectrum has no SiC crystallization peak. In an X-ray photoelectron spectroscopy of the negative electrode material, there is a binding peak belonging to the C—Si bond at a location of 283.5±1 eV after a C1s energy spectrum is subjected to peak splitting. The average particle size of the negative electrode material particles is 1 nm-100 μm, and the specific surface area is 0.5 m2/g-40 m2/g. The mass of the carbon atoms accounts for 0.1%-40% of the mass of the silicon oxide matrix. The ultra-fine silicon obtained by gaseous treatment is bonded to highly conductive carbon to form a disordered C—Si bond structure mixed at a molecular level.
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公开(公告)号：US20220131153A1
公开(公告)日：2022-04-28
申请号：US17593782
申请日：2020-02-10
IPC分类号： H01M4/62 , H01M10/0562
摘要： Disclosed is an ionic conductor slurry, a preparation method therefor and an application thereof. The ionic conductor slurry comprised parts by mass: 0.05 wt %-99.98 wt % of an ionic conductor powder material, 0 wt %-2 wt % of an anti-settling agent, 0 wt %-10 wt % of a binder, 0 wt %-2 wt % of a dispersant, 0 wt %-2 wt % of an auxiliary agent, and 20 wt %-99.95 wt % of a solvent, wherein the ionic conductor powder material comprises one among the following: a garnet-type solid electrolyte material, a NASICON-type solid electrolyte material, a LISICON-type solid electrolyte material, a perovskite-type solid electrolyte material, and derivatives thereof; The particle size of the ionic conductor powder is between 1 nm to 100 μm; and the ionic conductor slurry is used for separator coating material, positive electrode material coating materials, negative electrode material cladding materials, positive electrode material additive, a negative electrode material additive, polymer solid electrolyte additives, or solid-liquid mixed solid electrolyte.
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公开(公告)号：US20220006118A1
公开(公告)日：2022-01-06
申请号：US17309119
申请日：2019-04-15
IPC分类号： H01M10/0562 , H01M10/0525 , H01M50/449 , H01M50/497
摘要： A modified solid electrolyte membrane is disclosed, and a preparation method therefor, and a lithium battery. The modified solid electrolyte membrane includes a base membrane and a solid electrolyte layer. The solid electrolyte layer is formed by a coating slurry, the basic membrane being coated by the coating slurry, or the basic membrane being coated by the coating slurry and the coating slurry even permeating into the basic membrane. The solid electrolyte layer is formed by a NASICON type solid electrolyte material and has a particle size smaller than 1 μm.
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