Organic sulfur compound anode material, and aluminum ion battery and anode piece for aluminum ion battery

A composite cathode material, aluminum ion battery technology, applied in battery electrodes, secondary batteries, circuits, etc., can solve the problems of low overall capacity, affecting the capacity of carbon-sulfur composite materials, etc., to improve product qualification rate, good market prospects, The effect of high conductivity

Active Publication Date: 2016-11-23
深圳博磊达新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The composite positive electrode is applied to the secondary aluminum battery system, which can effectively improve the specific capacity, stability and cycle performance of the battery, but the polyaniline coating layer will cause the overall capacity to be low, which will affect the capacity of the carbon-sulfur composite material.

Method used

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  • Organic sulfur compound anode material, and aluminum ion battery and anode piece for aluminum ion battery
  • Organic sulfur compound anode material, and aluminum ion battery and anode piece for aluminum ion battery
  • Organic sulfur compound anode material, and aluminum ion battery and anode piece for aluminum ion battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The organosulfur composite positive electrode material of this embodiment is prepared by the following method:

[0036] Dissolve 30g of polypropylene carbonate (high molecular polymer) in 300g of dimethyl carbonate, stir at a low speed for 15min to obtain a polymer solution, add 10g of vulcanized polyacetylene powder (C:S=1:3) to the In the above polymer solution (mass ratio of high molecular polymer to organic sulfur powder is 30:10), after stirring for 30 minutes, filter the filter residue, wash it with deionized water, and then dry it at 70°C under the protection of argon , to obtain the organic sulfur composite cathode material.

[0037] The aluminum ion battery positive pole sheet of the present embodiment is prepared by the following method:

[0038] 1) Composite binder preparation: Take 40g of polyacrylic acid, 15g of polypropylene glycol, 40g of polyvinylidene fluoride, and 5g of vinyl carbonate and add them into a high-speed disperser and stir and mix for 1 ho...

Embodiment 2

[0041] The organosulfur composite positive electrode material of this embodiment is prepared by the following method:

[0042]Dissolve 10g of polymethyl acrylate (high molecular weight polymer) in 300g of diethyl carbonate, stir at a low speed for 15min to obtain a polymer solution, add 5g of carbyne polysulfide powder (C:S=1:2) to the In the above polymer solution (mass ratio of polymer to organic sulfur powder is 10:5), after stirring for 30 minutes, filter the filter residue, wash it with deionized water, and then dry it at 70°C under the protection of argon , to obtain the organic sulfur composite cathode material.

[0043] The aluminum ion battery positive pole piece of the present embodiment is prepared by the following method:

[0044] 1) Composite binder preparation: Take 30g of polyacrylic acid, 19g of polypropylene glycol, 50g of polyvinylidene fluoride, and 1g of vinyl carbonate and add them into a high-speed disperser and mix them for 1 hour to obtain a composite ...

Embodiment 3

[0047] The organosulfur composite positive electrode material of this embodiment is prepared by the following method:

[0048] 50g of polymethyl methacrylate (macromolecular polymer) was dissolved in 500g of ethyl methyl carbonate, stirred at a low speed for 15min to obtain a polymer solution, and 20g of polythiopolystyrene powder (C:S=1: 5) Add it into the polymer solution (mass ratio of high molecular polymer to organic sulfur powder is 50:20), stir for 30 minutes, filter the filter residue, wash it with deionized water, and then heat it at 70°C under argon gas. drying under protection to obtain the organosulfur composite cathode material.

[0049] The aluminum ion battery positive pole piece of the present embodiment is prepared by the following method:

[0050] 1) Composite binder preparation: take 50g of polyacrylic acid, 20g of polypropylene glycol, 25g of polyvinylidene fluoride, and 5g of vinyl carbonate and add them into a high-speed disperser and stir and mix for 1 ...

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Abstract

The invention discloses an organic sulfur compound anode material, and an aluminum ion battery and an anode piece for the aluminum ion battery. The compound anode material is prepared according to the method comprising the following steps: dissolving a high-molecular polymer into a carbonic ester solvent, thereby obtaining a polymer solution; mixing organic sulfur powder with the polymer solution; filtering and taking filter residue; washing and drying, thereby obtaining the organic sulfur compound anode material. The mass ratio of high-molecular polymer to organic sulfur powder is (10-50):(5-20); the high-molecular polymer is any one or combination of polypropylene carbonate, polydiethylsiloxane, polymethyl acrylate and polymethyl methacrylate; the high-molecular polymer is covered on the organic sulfur surface, so that the stability of organic sulfur of the core is increased and the product yield of the pole piece processing is increased; the material is taken as the anode material for preparing the aluminum ion battery and the coating layer of the high-molecular polymer is dissolved in the organic electrolyte, so that the characteristic of high specific capacity of the organic sulfur is fully exerted.

Description

technical field [0001] The invention belongs to the technical field of aluminum ion batteries, and specifically relates to an organic sulfur composite positive electrode material, and also relates to a positive pole piece for an aluminum ion battery and an aluminum ion battery using the composite positive electrode material. Background technique [0002] With people's thirst for high-energy-density power sources, there is an urgent need for the development and application of cheap, safe, environmentally friendly and high-performance secondary batteries. The secondary aluminum-sulfur battery, which uses aluminum and its alloys as negative electrode materials and chalcogenide materials as positive electrodes, is one of the batteries that can meet the above requirements. Aluminum and sulfur materials are safe, environmentally friendly, low in price and rich in resources. The battery has good safety. The theoretical energy density of metal aluminum is as high as 2980mAh / g, secon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/36H01M4/60H01M4/137H01M10/054
CPCH01M4/137H01M4/364H01M4/60H01M10/054Y02E60/10
Inventor 王燕李志原东甲王磊
Owner 深圳博磊达新能源科技有限公司
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