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Aluminum ion electrolyte solution, magnesium ion electrolyte solution and battery

An electrolyte solution and aluminum ion technology, applied in the energy field, can solve the problems of price reversal, resource shortage, etc., and achieve the effects of high cost performance, excellent safety, and rapid charge and discharge.

Inactive Publication Date: 2019-11-05
杭州怡莱珂科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, lithium, cobalt, and nickel, which are used to manufacture lithium-ion batteries, are all facing resource shortages, and the rapid rise in prices is difficult to reverse

Method used

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  • Aluminum ion electrolyte solution, magnesium ion electrolyte solution and battery
  • Aluminum ion electrolyte solution, magnesium ion electrolyte solution and battery

Examples

Experimental program
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Effect test

preparation example Construction

[0036] The preparation method of the carbon-sulfur intermolecular compound electrode comprises the following steps:

[0037]1) Mix microcrystalline graphite or conductive carbon black with a particle size of less than 500 mesh and sulfur evenly in a ratio of carbon to sulfur weight ratio equal to 1:0.7 to 1:0.5, fill it into an autoclave with an air extraction device and compact it.

[0038] There is no strict stoichiometric ratio for the formation of intermolecular compounds between carbon and sulfur, and the recommended carbon-sulfur ratio is an optimized empirical value. Products synthesized with higher carbon-sulfur ratios have better conductivity, but relatively lower energy density; products synthesized with lower carbon-sulfur ratios have lower conductivity, but higher energy density.

[0039] 2) Connect the exhaust valve of the autoclave to the vacuum pump, and close the exhaust valve after vacuuming.

[0040] The purpose of vacuuming the autoclave is to ensure safety...

Embodiment 1

[0078] Mix aluminum trifluoromethanesulfonate and sodium hexafluorophosphate at a weight ratio of 1:1, then add ethyl methyl carbonate solvent 3 times the weight of the solid, stir until the solid is completely dissolved, and heat to a constant temperature of 110°C Water was removed for 8 hours to obtain an aluminum ion electrolyte solution.

Embodiment 2

[0080]Mix aluminum trifluoromethanesulfonate and sodium hexafluorophosphate at a weight ratio of 1:1.5, then add gamma-butyrolactone solvent 5 times the weight of the solid, stir until the solid is completely dissolved, and heat to 130°C Constant temperature for 5 hours to remove moisture, to aluminum ion electrolyte solution. An aluminum ion electrolyte solution is obtained.

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Abstract

The invention discloses aluminum ion and magnesium ion electrolyte solutions and a battery. The aluminum ion and magnesium ion electrolyte solutions are each formed by dissolving an ion carrier and aconductive enhancer in an organic solvent. As an application example, the invention provides a scheme for forming a sulfur-aluminum and sulfur-magnesium ion battery based on the aluminum ion and magnesium ion electrolyte solutions. According to the batteries, carbon-sulfur intermolecular compound electrodes and metallic aluminum or metallic magnesium are taken as two poles of the batteries, and aluminum ion or magnesium ion electrolyte solutions are poured into the batteries. During the assembly of the batteries, an electrolyte solution is poured into a battery shell, then a carbon-sulfur intermolecular compound electrode and a metal electrode are immersed in the solution, and the battery shell is sealed after vacuum pumping and exhausting, so that the sulfur-aluminum or sulfur-magnesium ion battery is obtained. The battery is a secondary battery capable of being charged and discharged repeatedly, has the advantages of high energy density, high cost performance, safety superior to thatof a lithium ion battery, capability of being charged and discharged quickly and the like, is suitable for being used as a passenger vehicle power battery, and can also be used as an energy storage device matched with a renewable energy power generation device.

Description

technical field [0001] The invention belongs to the field of energy, and in particular relates to an aluminum ion electrolyte solution and a battery. Background technique [0002] Lithium-ion batteries are currently the most widely used, which have the advantages of high energy density, long charge and discharge cycle life and so on. However, in terms of safety performance, lithium-ion batteries are obviously inferior to lead-acid batteries and alkaline batteries. From mobile phones to electric vehicles, lithium-ion batteries have experienced spontaneous combustion accidents, causing serious losses to manufacturers and users of related products. The fundamental reason is that lithium metal will inevitably precipitate on the electrodes during the charging and discharging process of lithium-ion batteries, and the chemical properties of lithium are too active. As long as the seal of the battery fails, metal lithium will react violently with air and water vapor and ignite. Powe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0568H01M10/42H01M10/054
CPCH01M10/054H01M10/0568H01M10/4235H01M2300/0025Y02E60/10
Inventor 叶瑛夏天张平萍
Owner 杭州怡莱珂科技有限公司