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Aluminium ion secondary battery taking CuS as cathode and preparation technology thereof

A technology of secondary battery and preparation process, which is applied in the direction of secondary battery, electrolyte battery manufacturing, battery electrodes, etc. It can solve the problems of unreported CuS and its composite aluminum ion secondary battery, etc., and achieve abundant reserves and high cycle reversibility Sexuality and wide application prospects

Active Publication Date: 2016-03-30
BEIJING ALUMINUM ENERGY S&T +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the patents and documents so far have not reported about CuS and its composite materials as the positive electrode and the aluminum ion secondary battery with this positive electrode.

Method used

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  • Aluminium ion secondary battery taking CuS as cathode and preparation technology thereof
  • Aluminium ion secondary battery taking CuS as cathode and preparation technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025]The positive active material is CuS, the conductive material is acetylene black, and the binder is polytetrafluoroethylene (PTFE). The three are mixed evenly in absolute ethanol according to the mass ratio of 50:40:10, and then baked in an oven at 80 degrees Celsius until gelatinous, and then the gelatinous material is evenly smeared on a suitable size current collector tantalum On the sheet (thickness 0.01mm), it was finally dried in an oven at 100 degrees Celsius for more than 12 hours and then wrapped with GF / D separator material as the positive electrode of the battery. The negative electrode is made of high-purity aluminum sheet with a thickness of 0.2 mm, which is cut into pieces of suitable size, then polished with fine sandpaper, washed in absolute ethanol, and dried by ultrasonic vibration as the negative electrode material. Anhydrous aluminum chloride and 1-ethyl-3-methylimidazolium chloride in a molar ratio of 1.3:1 are prepared into an ionic liquid in a glove...

Embodiment 2

[0027] The positive active material is CuS, the conductive material is graphene, and the binder is polytetrafluoroethylene (PTFE). The three are mixed evenly in absolute ethanol according to the mass ratio of 80:10:10, and then baked in an oven at 80 degrees Celsius until gelatinous, and then the gelatinous material is evenly smeared on a suitable size current collector niobium On the sheet (thickness 0.01mm), it was finally dried in an oven at 60 degrees Celsius for more than 12 hours and then wrapped with GF / D separator material as the positive electrode of the battery. The negative electrode is made of high-purity aluminum sheet with a thickness of 0.2 mm, which is cut into pieces of suitable size, then polished with fine sandpaper, washed in absolute ethanol, and dried by ultrasonic vibration as the negative electrode material. Anhydrous aluminum chloride and 1-ethyl-3-methylimidazolium chloride in a molar ratio of 1.3:1 are prepared into an ionic liquid in a glove box in ...

Embodiment 3

[0029] The positive active material is CuS, and the conductive material is platinum paste. The two are mixed evenly in absolute ethanol in a mass ratio of 80:20, and then baked in an oven at 80 degrees Celsius to a gel-like substance, and then the gel-like substance is It is evenly spread on the niobium sheet of suitable size (thickness 0.01mm), and finally dried in an oven at 80 degrees Celsius for more than 12 hours, and then wrapped with GF / D separator material as the positive electrode of the battery. The negative electrode is made of high-purity aluminum sheet with a thickness of 0.2 mm, which is cut into pieces of suitable size, then polished with fine sandpaper, washed in absolute ethanol, and dried by ultrasonic vibration as the negative electrode material. Anhydrous aluminum chloride and 1-ethyl-3-methylimidazolium chloride in a molar ratio of 1.3:1 are prepared into an ionic liquid in a glove box in an argon atmosphere, as the electrolyte for the aluminum ion secondar...

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Abstract

The invention belongs to the technical field of the new type green energy battery, especially an aluminium ion secondary battery taking CuS as cathode and a preparation technology thereof. The cathode active material is CuS; the anode is metallic aluminium or aluminium-containing alloy; the liquid ion electrolyte is nonaqueous solution electrolyte containing AI3 +; the battery cathode and anode and the electrolyte thereof are packaged by insulating soft bags or assembled by cylindrical containers. The aluminium ion secondary battery provided by the invention can charge and discharge repeatedly, is featured by high capacity, good circulation stability, cheap raw material and environmental friendliness; the first charge and discharge specific capacity respectively is 270mAhg-1 and 275mAhg-1; the discharge platform reaches 1.15V(i)va.( / i)Al3+ / Al. The aluminium ion secondary battery can be widely applied in fields such as the electronic industry, the communication industry and so on.

Description

technical field [0001] The invention belongs to the technical field of novel green energy batteries, and in particular relates to an aluminum ion secondary battery with a CuS material as a positive electrode and a preparation process thereof. Background technique [0002] With the rapid economic development, the energy crisis and environmental pollution are increasing day by day. Therefore, the development of a renewable energy source, such as energy storage batteries, has become a hot research topic. Lithium-ion batteries based on carbonaceous materials, such as graphite as anode, lithium metal oxide materials (LiCoO 2 etc.) as the cathode, the battery with aprotic liquid as the electrolyte has always been a hot spot in scientific research in the field of portable electronic applications. However, due to the limitation of lithium resources, the high cost and the greater safety hazards limit the further development of lithium-ion batteries. To meet new demands for smaller...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/054H01M4/58H01M10/058
CPCH01M4/5815H01M10/054H01M10/058Y02E60/10Y02P70/50
Inventor 焦树强王帅余智静王俊香雷海萍李海滨
Owner BEIJING ALUMINUM ENERGY S&T
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