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Aluminum-ion secondary battery employing nickel-sulfur compound as positive electrode and preparation technology of aluminum-ion secondary battery

A secondary battery and compound technology, applied in battery electrodes, non-aqueous electrolyte batteries, circuits, etc., can solve the problems of unreported aluminum ion secondary batteries, and achieve abundant reserves, good chemical stability, and good electrochemical stability Effect

Inactive Publication Date: 2016-06-01
BEIJING ALUMINUM ENERGY S&T +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But so far patents and literature have not yet reported about nickel-sulfur compounds and their composite materials as positive poles and aluminum ion secondary batteries with such positive poles.

Method used

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  • Aluminum-ion secondary battery employing nickel-sulfur compound as positive electrode and preparation technology of aluminum-ion secondary battery
  • Aluminum-ion secondary battery employing nickel-sulfur compound as positive electrode and preparation technology of aluminum-ion secondary battery

Examples

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Embodiment 1

[0030] use Ni 3 S 2 As the positive active material, the positive plate is assembled by Ni 3 S 2 : Graphene: PTFE mass ratio of 80:10:10 is evenly mixed, baked in an oven at 80 degrees Celsius until it becomes a gel, and then spreads the gel evenly on a tantalum sheet of appropriate size (thickness 0.01 mm), and finally dried in an oven at 60-100 degrees Celsius for more than 12 hours, then wrapped with GF / D separator material as the positive electrode of the battery. The negative electrode is a high-purity aluminum sheet, which is soaked in absolute ethanol for 1-2 hours, dried by ultrasonic vibration, and then cut into a suitable size sheet as the negative electrode. Anhydrous aluminum chloride and 1-ethyl-3-methylimidazolium chloride are prepared in a molar ratio of 1.3:1 in a glove box in an argon atmosphere to prepare an ionic liquid as an electrolyte for an aluminum ion battery of the present invention. Finally, the prepared positive electrode, negative electrode and...

Embodiment 2

[0032] use Ni 3 S 2 As the positive active material, the positive plate is assembled by Ni 3 S 2 : Acetylene black: PTFE mass ratio of 60:30:10 is mixed evenly, baked in an oven at 80 degrees Celsius until it becomes a gel, and then spreads the gel evenly on a niobium sheet of a suitable size (thickness 0.01 mm), and finally dried in an oven at 60-100 degrees Celsius for more than 12 hours, then wrapped with GF / D separator material as the positive electrode of the battery. The negative electrode is a high-purity aluminum sheet, which is soaked in absolute ethanol for 1-2 hours, dried by ultrasonic vibration, and then cut into a suitable size sheet as the negative electrode. Anhydrous aluminum chloride and 1-ethyl-3-methylimidazolium chloride are prepared in a molar ratio of 1.3:1 in a glove box in an argon atmosphere to prepare an ionic liquid as an electrolyte for an aluminum ion battery of the present invention. Finally, the prepared positive electrode, negative electrod...

Embodiment 3

[0034] NiS is used as the positive electrode active material, and the positive electrode plate is assembled according to the ratio of NiS:platinum slurry mass ratio of 80:20, and then the gel is evenly spread on the tantalum sheet of appropriate size (thickness 0.01mm), and finally After standing in an oven at 60-100 degrees Celsius for more than 12 hours, wrap it with GF / D separator material as the positive electrode of the battery. The negative electrode is an aluminum-nickel alloy with an aluminum purity greater than 90%, which is soaked in absolute ethanol for 1-2 hours, dried by ultrasonic vibration, and then cut into a suitable size sheet as the negative electrode. Anhydrous aluminum fluoride and 1-ethyl-3-methylimidazolium fluoride are prepared in a molar ratio of 1.3:1 in a glove box in an argon atmosphere to prepare an ionic liquid as an electrolyte for an aluminum ion battery of the present invention. Finally, the prepared positive electrode, negative electrode and e...

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Abstract

The invention belongs to the technical field of batteries, and particularly relates to an aluminum-ion secondary battery employing a nickel-sulfur compound as a positive electrode and a preparation technology of the aluminum-ion secondary battery. The aluminum-ion secondary battery can be widely applied to the fields of electronic industry, communication industry and the like, and can also be applied to a power battery for an electric automobile. The aluminum-ion secondary battery comprises a positive electrode, a negative electrode, a diaphragm material, a liquid aluminum-ion electrolyte and an electrolytic tank device, wherein a positive active material is the nickel-sulfur compound; the negative electrode is metal aluminum or aluminum-containing alloy; the liquid aluminum-ion electrolyte is a non-aqueous solution electrolyte containing Al<3+> ions; and the positive electrode, the negative electrode and the electrolyte of the battery and the like are coated by an insulated soft package or are assembled by a tubular container. The aluminum-ion secondary battery provided by the invention can be repeatedly charged and discharged and has the advantages of high capacity, high charge-discharge efficiency, good cycling stability and excellent charge-discharge characteristics; the first discharge specific capacity can reach 350mAhg<-1>; and the discharge platform can reach 1.1V vs.Al<3+ / >Al.

Description

technical field [0001] The invention belongs to a positive electrode of a nickel-sulfur compound composite material, an aluminum ion secondary battery using the positive electrode and a preparation process thereof, which can be used as a new type of green energy battery in the fields of electronics industry, communication industry, electric vehicle power battery and the like. Background technique [0002] In recent years, non-renewable fossil fuels such as coal, oil and natural gas have been increasingly depleted, environmental pollution and greenhouse effect have become increasingly serious, and energy crisis and environmental protection have become two major problems facing the world. Therefore, the development and utilization of clean and renewable energy has become a hot spot in current research, and electric energy has become the key to the development and utilization of renewable energy because it is at the core stage of various energy conversions. Since Japan's SONY c...

Claims

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Application Information

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IPC IPC(8): H01M4/36H01M4/58H01M4/62H01M10/05
CPCH01M4/364H01M4/5815H01M4/625H01M10/05Y02E60/10
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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