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Battery utilizing chlorine-containing ionic liquid as positive active material and assembling method of battery

An ionic liquid and battery technology, applied in the direction of non-aqueous electrolyte batteries, electrolyte battery manufacturing, battery electrodes, etc., can solve the problems of slow kinetics, inactivity, etc., achieve high specific energy, low cost, and prolong cycle life.

Active Publication Date: 2018-02-06
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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  • Battery utilizing chlorine-containing ionic liquid as positive active material and assembling method of battery

Examples

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Effect test

Embodiment 1

[0054] A battery comprising a positive electrode chamber and a negative electrode chamber separated by a Nafion membrane; the electrolyte of the positive electrode chamber includes tetraethylammonium trichloride, and the negative electrode chamber is injected with an ionic liquid electrolyte; the positive electrode chamber is inserted with carbon nanotubes 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 electrod...

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 utilizing a chlorine-containing ionic liquid as a positive active material and an assembling method of the battery. The battery comprises a positive electrode chamber and a negative electrode chamber spaced by a cation exchange membrane, wherein an electrolyte in the positive electrode chamber contains the chlorine-containing ionic liquid, and an ionic liquid electrolyte is injected into the negative electrode chamber. The chlorine-containing ionic liquid is prepared from elemental chlorine and organic salt through a reaction. According to the battery, the ionic liquid is taken as the electrolyte, the chlorine-containing ionic liquid is taken as the positive active material, aluminum or magnesium is taken as a negative electrode, and the aluminum and magnesium electrodes are free of passive membranes in the ionic liquid, so that the battery has higher reversibility; the battery is in a cheap and environment-friendly battery system with high energy ratio.

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 Applications(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
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