Liquid active magnesium-cuprous chloride paper battery and preparation method thereof

A technology of cuprous chloride paper and liquid activation, which is applied in the direction of dry batteries, etc.

Inactive Publication Date: 2013-08-28
NANCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This battery is simple in structure, easy to use, and cheap, especially in the military, maritime and meteorological departments. At present, there are few patents on magnesium-cuprous chloride batteries in China, and most of them are patents on the production method of magnesium anodes.

Method used

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  • Liquid active magnesium-cuprous chloride paper battery and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Example 1. Fabrication of liquid-activated magnesium-cuprous chloride paper batteries.

[0040] (1) Passivation treatment of magnesium anode. Soak 0.1mm thick metal magnesium foil in 0.05M stannate solution for 5 minutes to form a passivation film.

[0041] (2) Preparation of electrolyte. Prepare Mg(ClO 4 ) 2 Electrolyte with a concentration of 0.4M and a quaternary ammonium salt concentration of 0.06M.

[0042](3) Treatment of fiber paper. Immerse the filter paper in the above mixed electrolyte for 2-3 minutes, take out and drain the excess drip, and dry it at 40-50°C for later use.

[0043] (4) Preparation of cuprous chloride mixed powder. The method is to mix according to the ratio of cuprous chloride: graphite: carbon nanotube: zeolite = 90:5:5:0.1, and obtain CuCl mixed powder through ball milling.

[0044] (5) Preparation and coating of CuCl active slurry. The method is to weigh a certain amount of cuprous chloride mixed powder, add deionized water to pre...

Embodiment 2

[0047] Example 2. Fabrication of liquid-activated magnesium-cuprous chloride paper batteries.

[0048] (1) Passivation treatment of magnesium anode. The method is to immerse a magnesium alloy with a thickness of about 0.2mm in a 0.05M vanadate solution for 3 minutes to form a passivation film.

[0049] (2) Preparation of electrolyte. Prepare MgSO 4 An electrolyte with a concentration of 1.0M and a stannate concentration of 0.03M.

[0050] (3) Treatment of fiber paper. The method is to soak the quick-absorbing paper in the above-mentioned electrolyte for 2-3 minutes, take out and drain the excess dripping liquid, and dry it at 40-50°C for later use.

[0051] (4) The preparation of CuCl mixed powder, its method is to press CuCl: carbon nanotube: V 2 o 5 =90:10:0.05 ratio mixing, through ball milling to get CuCl mixed powder.

[0052] (5) Preparation and coating of CuCl active slurry. The method is to weigh a certain amount of CuCl mixed powder, add deionized water to pre...

Embodiment 3

[0055] Example 3. Fabrication of liquid-activated magnesium-cuprous chloride paper batteries.

[0056] (1) Passivation treatment of magnesium negative electrode, the method is to immerse a 0.1mm thick magnesium foil in a 0.1M phosphate solution for 5 minutes to form a passivation film.

[0057] (2) Preparation of electrolyte, preparation of MgBr 2 An electrolyte with a concentration of 0.2M and a chromate concentration of 0.02M.

[0058] (3) Treatment of fiber paper, the method is to immerse the filter paper in the above electrolyte solution for 5 minutes, take out and drain the excess dripping liquid, and dry it at 40~50°C for later use.

[0059] (4) Preparation of CuCl mixed powder, the method is to mix according to the ratio of CuCl: carbon black: MgO=85:15:0.1, and obtain CuCl mixed powder by ball milling.

[0060] (5) Preparation and coating of CuCl active slurry. The method is to weigh a certain amount of CuCl mixed powder, add deionized water to prepare a slurry, and...

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Abstract

The invention provides a liquid active magnesium-cuprous chloride paper battery and a preparation method thereof. The magnesium-cuprous chloride paper battery is composed of the following successively laminated components: a magnesium negative electrode, fiber paper having absorbed an electrolyte, diaphragm paper coated with CuCl active slurry and a carbon current collector. The preparation method comprises the following steps: passivating the magnesium negative electrode and preparing the electrolyte with a magnesium salt concentration of 0.1 to 1.0 M and a corrosion inhibitor concentration of 0.02 to 0.06 M; dipping the fiber paper in the electrolyte and then drying the fiber paper at a temperature of 40 to 50 DEG C for subsequent usage; mixing CuCl, a conductive agent and an additive according to a mass ratio of 80-90: 10-20: 0.1-1, carrying out ball milling to obtain CuCl mixed powder, then weighing a certain amount of the CuCl mixed powder, adding deionized water into the weighed CuCl mixed powder to prepare the CuCl active slurry, then coating the CuCl active slurry on the surface of the diaphragm paper and drying the diaphragm paper at a temperature of 30 to 40 DEG C for subsequent usage; and successively superposing a layer of absorbent paper having absorbed the electrolyte, the diaphragm paper coated with the CuCl active slurry and the carbon current collector on the surface of the magnesium electrode, leading out positive and negative wires and carrying out vacuum packaging with a plastic film. The liquid active magnesium-cuprous chloride paper battery provided by the invention has excellent storage performance and does not lose efficacy after long-term storage, and the voltage of a battery cell reaches 1.8 to 2.0 V.

Description

Technical field [0001] The present invention is a paper battery, especially the liquid activated magnesium-chlorine copper paper battery and its production method. technical background [0002] Magnesium is a lively metal with an electrical negativeness of 1.31, and the standard electrode potential is -2.36V theoretical than 2.20AH / g. ) Small, far larger than metal zinc (0.82AH / g), so magnesium is a very promising battery negative material. my country's magnesium resources are very rich and reserved in the world. [0003] Copper chloride is slightly soluble in water, and it is stable in dry air, but it is oxidized with green alkali salt in humid air.Copper chloride has a stimulating effect on the skin and eyes, and should pay attention to safety when using.Metal magnesium and chlorine chloride batteries are commonly used in maritime and meteorological departments. [0004] MG-CUCL battery's reaction process: [0005] Negative reaction: mg → mg 2+ +2e [0006] Positive reaction: C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M6/06
Inventor 付敏恭孙晓刚吁霁彭晓清吴小勇庞志鹏付琦
Owner NANCHANG UNIV
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