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A battery with chlorine-containing ionic liquid as positive electrode active material and assembly method thereof

An ionic liquid and battery technology, which is applied in the manufacture of electrolyte batteries, non-aqueous electrolyte batteries, battery electrodes, etc., can solve the problems of slow kinetics and inactivity, and achieve the effects of high specific energy, low cost, and low price

Active Publication Date: 2019-09-10
HENGDIAN GRP DMEGC MAGNETICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the system with water, there is a serious hydrogen evolution reaction of aluminum and magnesium as electrodes; in the organic system, aluminum and magnesium have thicker passivation films, and Al 3+ , Mg 2+ It is very slow for ions to migrate through the passivation film into the electrolyte, so aluminum and magnesium electrodes show kinetic sluggishness and inactivity, which restrict their application

Method used

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  • A battery with chlorine-containing ionic liquid as positive electrode active material and assembly method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A kind of battery, comprises positive pole compartment and negative pole compartment separated by Nafion film; In the electrolyte of positive pole compartment, comprise tetraethyl ammonium trichloride, in the negative pole compartment, be injected with ionic liquid electrolyte; In the positive pole compartment, be inserted with carbon nanotube The positive electrode and the negative electrode chamber are immersed in an aluminum negative electrode.

[0055] The ionic liquid electrolyte is prepared by mixing anhydrous aluminum chloride and 1-ethyl-3-methyl-imidazolium chloride salt in a molar ratio of 2:1.

[0056] The battery assembly method specifically includes the following steps:

[0057] (1) carbon nanotube positive electrode, tetraethylammonium chloride, and ionic liquid electrolyte are placed in a glove box full of argon;

[0058] (2) Use Nafion membrane and sealing ring for lamination and assembly;

[0059] (3) Insert the carbon nanotube positive electrode into...

Embodiment 2

[0061] Compared with Example 1, the Selemion membrane is used instead of the Nafion membrane, and the others are the same as in Example 1.

Embodiment 3

[0063] Compared with Example 1, the Nafion film is replaced by a Daramic film, and the others are the same as in Example 1.

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Abstract

The invention relates to a battery using a chlorine-containing ionic liquid as a positive electrode active material and an assembling method thereof. The battery comprises a positive electrode chamber and a negative electrode chamber separated by a cation exchange membrane; the electrolyte in the positive electrode chamber contains chlorine-containing ionic liquid The ionic liquid is injected into the negative electrode chamber with an ionic liquid electrolyte. The chlorine-containing ionic liquid in the present invention is obtained by reacting elemental chlorine with an organic salt. The present invention adopts ionic liquid as electrolyte, chlorine-containing ionic liquid as positive active material, aluminum or magnesium as negative electrode, aluminum and magnesium electrodes do not have passivation film in ionic liquid, so they have high reversibility; The invention is an inexpensive, environmentally friendly, and high-energy-ratio battery system.

Description

technical field [0001] The invention relates to the field of secondary batteries, in particular to a battery and an assembly method thereof, in particular to a battery using a chlorine-containing ionic liquid as a positive electrode active material and an assembly method thereof. Background technique [0002] Lithium-ion batteries were once considered to be the power batteries with the most development potential for electric vehicles; however, with the development of precious metals such as nickel, cobalt, and lithium, the raw materials of lithium-ion power batteries have risen sharply. In comparison, the price has increased by more than 4 times, which seriously restricts the promotion and application of new energy vehicles; the poor safety of lithium-ion power batteries and the poor economic benefits of recycling are also important factors restricting its development. Therefore, the development and production of secondary batteries with low cost, environmental friendliness ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/36H01M10/0525H01M10/058
CPCH01M4/364H01M10/0525H01M10/058Y02E60/10Y02P70/50
Inventor 唐怀远王媛珍王康彦金源
Owner HENGDIAN GRP DMEGC MAGNETICS CO LTD