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Aluminum ion battery and its cathode material

A technology for aluminum ion batteries and positive electrode materials, applied in battery electrodes, secondary batteries, circuits, etc., can solve problems such as complex processes and high raw material costs, and achieve the effect of improving mass capacity and volume capacity

Active Publication Date: 2021-01-08
绿业中试低碳科技(镇江)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the biggest disadvantage of preparing aluminum-ion battery cathodes from graphene is that the process is complex and the cost of raw materials is high. Therefore, it is urgent to develop a material suitable for industrial applications.

Method used

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  • Aluminum ion battery and its cathode material
  • Aluminum ion battery and its cathode material
  • Aluminum ion battery and its cathode material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0019] This embodiment provides a positive electrode material for an aluminum ion battery. The positive electrode material is a graphite interlayer compound, which is composed of a host material—natural flake graphite and an intercalation material—anhydrous ferric chloride at a molar ratio of 3:1. .

[0020] The preparation method of above-mentioned cathode material is as follows:

[0021] Weigh 1g of natural flake graphite and 4.5g of anhydrous ferric chloride in a glove box and mix thoroughly (the molar ratio of natural flake graphite to anhydrous ferric chloride is 3:1), and place the mixture in a quartz tube for vacuum drying at 100°C After more than 6 hours, the quartz tube was placed in a muffle furnace for 2 hours at 500°C; the obtained powder was washed with deionized water and then dried in an oven at 80°C for 6 hours to obtain the above positive electrode material, such as figure 1 .

[0022] The method for preparing an aluminum ion battery using the above-mention...

Embodiment approach 2

[0028] This embodiment provides a positive electrode material for an aluminum ion battery. The positive electrode material is a graphite intercalation compound composed of a host material—artificial graphite and an intercalation material—anhydrous aluminum chloride in a molar ratio of 1:1.35.

[0029] The preparation method of above-mentioned cathode material is as follows:

[0030] Weigh 1g of artificial graphite and 10g of anhydrous aluminum chloride in a glove box and mix thoroughly (the molar ratio of artificial graphite to anhydrous aluminum chloride is 1:1.35), and place the mixture in a quartz tube and dry it under vacuum at 100°C for more than 6 hours , and then put the quartz tube into a muffle furnace at 250°C for 2 hours; the obtained powder was washed with deionized water and then dried in an oven at 80°C for 6 hours to obtain the above-mentioned positive electrode material.

[0031] The method for preparing an aluminum ion battery using the above-mentioned cathode...

Embodiment approach 3

[0037] This embodiment provides a positive electrode material for an aluminum ion battery. The positive electrode material is a graphite intercalation compound composed of a host material—artificial graphite and an intercalation material—fluorine gas.

[0038] The preparation method of above-mentioned cathode material is as follows:

[0039] Weigh 1g of artificial graphite and put it into a quartz tube, dry it in vacuum at 100°C for 6 hours, pass in argon gas to clear the air in the tube, then continue to pass in fluorine gas and then raise the temperature to 600°C for 3 hours; the obtained powder is deionized water Wash and dry in an oven at 80° C. for 6 hours to obtain the above positive electrode material.

[0040] The method for preparing an aluminum ion battery using the above-mentioned cathode material is as follows:

[0041] Mix the above positive electrode material with polyvinylidene fluoride (concentration 5%, solvent N-methyl-2-pyrrolidone) according to the mass ra...

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Abstract

The invention relates to the field of novel batteries and discloses an aluminum ion battery and an anode material thereof. The anode material is a graphite intercalation compound and is composed of ahost material and an intercalation material in a molar ratio of (0.1-10): 1, wherein the host material is a graphite material and the intercalation material is a substance which can enter into a graphite intercalated SP2 hybridized orbital of the graphite material and is different from C atoms. Compared with the prior art, in the anode material, the intercalation material can increase the graphiteintercalated separation distance of the graphite material effectively, so that more aluminum ions can be stored in the anode material. The mass volume and the size volume of the prepared aluminum ionbattery are improved greatly.

Description

technical field [0001] The invention relates to the field of novel batteries, in particular to an aluminum ion battery and its positive electrode material. Background technique [0002] Currently, worldwide research hotspots on energy storage technologies are focused on high-capacity, high-power, and low-cost batteries that utilize earth-abundant and environmentally friendly elements. A large number of experimental studies have attempted to introduce optimized lightweight metals such as aluminum and magnesium in order to reduce the weight of the entire energy storage system and increase its energy density. Based on this viewpoint, there has been increasing research on the development of batteries based on Al anodes in the past few years. Aluminum is the most abundant metallic element in the Earth's crust and the third most abundant element. Aluminum has a clear price advantage over other common chemical power metals (lithium and sodium). In terms of energy density and cha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/36H01M4/38H01M4/58H01M4/587H01M10/054
CPCH01M4/366H01M4/381H01M4/388H01M4/58H01M4/582H01M4/587H01M10/054Y02E60/10
Inventor 乔佳杨建红温合静
Owner 绿业中试低碳科技(镇江)有限公司