Surface-modified battery composite material as well as preparation method and application thereof
The invention discloses a surface-modified battery composite material as well as a preparation method and application thereof. The preparation method comprises the following steps: uniformly coating the surface of a battery active material with a carbon fluoride material to obtain an initial composi...
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| creator | LI HONG FENG SHUHANG YU XIQIAN YANG YANG SONG JUNJIE |
| description | The invention discloses a surface-modified battery composite material as well as a preparation method and application thereof. The preparation method comprises the following steps: uniformly coating the surface of a battery active material with a carbon fluoride material to obtain an initial composite material; the initial composite material is pretreated, the fluorinated carbon material on the surface of the battery active material generates a surface film rich in nano L < i > F and inorganic carbon through an in-situ reaction, and the surface-modified battery composite material is obtained; a surface film of the battery composite material comprises nano L < i > F and inorganic carbon; the particle size of the nano L < i > F is 3-8 nm; the mass of the nano L < i > F accounts for more than 0 and less than or equal to 4.5 wt% of the total mass of the battery composite material; when the battery composite material disclosed by the invention is applied to the secondary battery, the secondary battery can have hig |
| format | Patent |
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| language | chi ; eng |
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| subjects | BASIC ELECTRIC ELEMENTS ELECTRICITY MANUFACTURE OR TREATMENT OF NANOSTRUCTURES MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES NANOTECHNOLOGY PERFORMING OPERATIONS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES TRANSPORTING |
| title | Surface-modified battery composite material as well as preparation method and application thereof |
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