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Anode of zinc air battery using zinc paste and manufacturing method thereof

A zinc-air battery and zinc paste technology, applied in electrode manufacturing, battery electrodes, fuel cell-type half-cells and primary battery-type half-cells, etc., can solve problems such as self-discharge, and achieve environmental protection and low energy consumption in the production process. Effect

Inactive Publication Date: 2017-01-11
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide an anode for a zinc-air battery using zinc paste and a manufacturing method thereof, which solves the problem of self-discharge in the storage process of a zinc-air battery using zinc paste, and prepares an anode that can be stored for a long time High performance zinc anode without self-discharge

Method used

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  • Anode of zinc air battery using zinc paste and manufacturing method thereof
  • Anode of zinc air battery using zinc paste and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Step 1: Make zinc paste according to the conventional method, which is composed of zinc powder: sodium polyacrylate: water: KOH with a mass ratio of 65g: 1g: 21g: 14g, and mix the above materials evenly to make zinc paste.

[0012] Step 2: Freeze-dry the prepared zinc paste at -80°C in cold hydrazine, and vacuum-dry until the dehydration is complete to obtain the anode active material.

[0013] Step 3: Press the anode active material and the current collector copper mesh through a roller machine or a press to make a high-performance zinc anode that can be stored for a long time.

[0014] Step 4: Assemble into a zinc-air battery, and let it stand for 5 months under vacuum.

[0015] Step 5: Add water into the water inlet until the battery is fully filled, and let it stand for 10 minutes.

[0016] Step 6: Test its discharge curve under the charge and discharge tester.

[0017] The result is that the zinc-air battery has better discharge performance, and the discharge can...

Embodiment 2

[0019] Step 1: Make zinc paste according to the conventional method, which is composed of zinc powder: sodium hydroxymethylcellulose: water: KOH with a mass ratio of 75g: 1.2g: 28g: 20g, and mix the above materials evenly to make zinc paste .

[0020] Step 2: Freeze-dry the prepared zinc paste at -80°C in cold hydrazine, and vacuum-dry until the dehydration is complete to obtain the anode active material.

[0021] Step 3: Press the anode active material and the current collector copper mesh through a roller machine or a press to make a high-performance zinc anode that can be stored for a long time.

[0022] Step 4: Assemble into a zinc-air battery, and let it stand for 5 months under vacuum.

[0023] Step 5: Add water into the water inlet until the battery is fully filled, and let it stand for 10 minutes.

[0024] Step 6: Test its discharge curve under the charge and discharge tester.

[0025] The result is that the zinc-air battery has better discharge performance, and the...

Embodiment 3

[0027] Step 1: Make zinc paste according to the conventional method, which is composed of zinc powder: sodium hydroxymethylcellulose: sodium polyacrylate: water: KOH, the mass ratio is 65g: 0.2g: 0.8: 28g: 20g, mix the above materials Evenly make zinc paste.

[0028] Step 2: Freeze-dry the prepared zinc paste at -80°C in cold hydrazine, and vacuum-dry until the dehydration is complete to obtain the anode active material.

[0029] Step 3: Press the anode active material and the current collector copper mesh through a roller machine or a press to make a high-performance zinc anode that can be stored for a long time.

[0030] Step 4: Assemble into a zinc-air battery, and let it stand for 5 months under vacuum.

[0031] Step 5: Add water into the water inlet until the battery is fully filled, and let it stand for 10 minutes.

[0032] Step 6: Test its discharge curve under the charge and discharge tester.

[0033] The result is that the zinc-air battery has better discharge perf...

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Abstract

The invention relates to an anode of a zinc air battery using zinc paste. The anode is characterized in that the specific process comprises the following steps: 1) preparing the zinc paste according to mass ratio that the proportion of zinc powder, a binding agent, water and KOH is (10-80): (0.1-5): (10-50): (10-40), wherein the binding agent is one of hydroxymethyl cellulose, carboxymethyl cellulose sodium and sodium polyacrylate or a mixture thereof in a proportion of 1: 1: 1; 2) carrying out freeze drying treatment on the prepared zinc paste, enabling the temperature of cold hydrazine to be -10 DEG C to -200 DEG C, and carrying out vacuum drying until dehydration is completed so as to obtain an anode active substance; and 3) pressing the anode active substance and a current collector copper wire mesh by a rolling machine or a press machine so as to prepare a high-performance zinc anode capable of long-term storage. The anode solves the problem of self-discharging existing in the storage process of the zinc air battery using zinc pate, and the non-self-discharging and high-performance zinc anode capable of long-term storage is prepared.

Description

technical field [0001] The invention relates to an anode for a zinc-air battery using zinc paste and a manufacturing method thereof, and is a metal anode of a metal-air battery and a manufacturing method thereof. Background technique [0002] At present, zinc-air batteries use active metals as the negative electrode active material, and oxygen in the air as the positive electrode active material, which abandons chemical elements such as lead, mercury, cadmium, and nickel in traditional batteries, reduces costs, and solves the pollution problem of traditional batteries. . Because the oxygen in the air battery does not occupy the space of the battery, the metal-air battery can store more reaction materials under the same volume and weight, and has higher specific energy density and lower cost than traditional batteries. Because the use of air as the cathode active material greatly improves the output capacity and discharge performance of the battery, and integrates the best t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M12/06H01M4/04H01M4/42
CPCH01M4/043H01M4/42H01M12/06Y02E60/10
Inventor 王金兴张斌许德超刘宏宇崔龙张克金
Owner CHINA FIRST AUTOMOBILE
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