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Large-capacity high-voltage graphene power storage battery and preparation method thereof

A power storage battery and graphene technology, applied in battery electrodes, secondary batteries, circuits, etc., can solve the problems of lithium batteries such as easy heating, long charging time, and broken mileage, and achieve fast charging speed, long mileage, and cycle long life effect

Active Publication Date: 2019-05-14
李连博
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Due to the progress of human society and the increase of population, the demand for social materials continues to increase, and the ensuing aggravation of environmental pollution, people urgently look forward to the improvement of the environment, and automobile fuel is an important factor causing pollution. Electric vehicles are the best choice for zero emissions. Finding an alternative fuel-powered battery is the top priority. I once placed high hopes on lithium batteries. Practice has proved that lithium batteries have hidden dangers such as heat generation and explosion. , long charging time, broken mileage and other defects, no matter which brand you use, the most important thing is safety first, followed by charging time, and the third is mileage

Method used

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  • Large-capacity high-voltage graphene power storage battery and preparation method thereof
  • Large-capacity high-voltage graphene power storage battery and preparation method thereof
  • Large-capacity high-voltage graphene power storage battery and preparation method thereof

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specific Embodiment approach

[0043] The specific embodiment: the present invention will be further described below in conjunction with accompanying drawing:

[0044] Such as figure 1 As shown, the present invention provides a large-capacity high-voltage graphene power battery, a large-capacity high-voltage graphene power battery, the battery includes a positive electrode aluminum foil current collector 1, a positive electrode graphene coating 2, organic carbon cotton (solid state) Electrolyte hard carbon cotton 3, negative electrode silicon / wrinkled graphene coating 4 and negative electrode copper foil current collector 5, positive electrode aluminum foil current collector 1, positive electrode graphene coating 2, organic carbon cotton (solid state) electrolyte hard carbon cotton 3, negative electrode silicon / The wrinkled graphene coating 4 and the negative electrode copper foil current collector 5 are arranged in the casing 10; the organic carbon cotton (solid) electrolyte hard carbon cotton 3 is arran...

Embodiment 1

[0050] Cathode material: directly spray graphene;

[0051] Negative electrode material: Composite material of wrinkled graphene and nanometer "silicon".

[0052] The preparation process of wrinkled graphene:

[0053] (1) Ultrasonic dispersion of 100g graphene oxide in 500ml deionized water to form a uniform suspension;

[0054] (2) Ultrasonically disperse 500 mg of silicon dioxide (sio2) with a particle size of 10 nm in 100 ml of deionized water;

[0055] (3) Mix the two solutions above and disperse them ultrasonically for 30 minutes, then freeze them in an ice water vessel.

[0056] (4), the mixture in N 2 Heat treatment at 1000°C in nitrogen atmosphere.

[0057] (5) Etch silicon dioxide (sio2) with hydrofluoric acid (FH) solution, and dry to obtain wrinkled graphene;

[0058] The preparation process of coated nano "silicon":

[0059] Spray drying method using emulsified asphalt and conventional solid powder asphalt as coating agent:

[0060] It is obtained by carbonizat...

Embodiment 2

[0066] Cathode material: directly spray graphene;

[0067] Negative electrode material: Composite material of wrinkled graphene and nanometer "silicon".

[0068] The preparation process of wrinkled graphene:

[0069] (1) Ultrasonic dispersion of 50g graphene oxide in 400ml deionized water to form a uniform suspension;

[0070] (2) Ultrasonic disperse 600 mg of silicon dioxide (sio2) with a particle size of 15 nm in 150 ml of deionized water;

[0071] (3) Mix the above two solutions and disperse them ultrasonically for 10 minutes, then freeze them in an ice water container.

[0072] (4), the mixture in N 2 Heat treatment at 700°C in nitrogen atmosphere.

[0073] (5) Etch silicon dioxide (sio2) with hydrofluoric acid (FH) solution, and dry to obtain wrinkled graphene;

[0074] The preparation process of coated nano "silicon":

[0075] Spray drying method using emulsified asphalt and conventional solid powder asphalt as coating agent:

[0076] It is obtained by carbonizati...

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Abstract

A large-capacity high-voltage graphene power storage battery, which includes a positive electrode aluminum foil current collector, a positive electrode graphene coating, an organic carbon cotton (solid-state) electrolyte hard carbon cotton, a negative electrode silicon / wrinkled graphene coating, and a negative electrode copper foil current collector , the materials used in the present invention are graphene, silicon oxygen / carbon and wrinkled graphene, which greatly reduce the cost, and the charging speed of the material is faster than that of the traditional lithium battery, the cycle life is long, the safety performance is good, there is no environmental pollution, and the cruising range long.

Description

technical field [0001] The invention provides a large-capacity, high-voltage graphene and a modified power storage battery thereof. Background technique [0002] Due to the progress of human society and the increase of population, the demand for social materials continues to increase, and the ensuing aggravation of environmental pollution, people urgently look forward to the improvement of the environment, and automobile fuel is an important factor causing pollution. Electric vehicles are the best choice for zero emissions. Finding an alternative fuel-powered battery is the top priority. I once placed high hopes on lithium batteries. Practice has proved that lithium batteries have hidden dangers such as heat generation and explosion. , Long charging time, broken cruising range and other defects, no matter which brand you use, the most important thing is safety first, followed by charging time, and the third is cruising range. Various technical measures of the present invent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/583H01M10/0565H01M10/38
CPCH01M4/583H01M10/0565H01M10/38Y02E60/10Y02P70/50
Inventor 李连博于恩华王晓凤
Owner 李连博