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Magnesium alloy negative electrode and primary battery comprising same

A magnesium alloy and primary battery technology, applied in the field of primary batteries, can solve problems such as environmental pollution, and achieve the effects of improving solid solubility, enhancing corrosion resistance, and eliminating matrix defects

Inactive Publication Date: 2018-10-02
SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of environmental pollution in the above-mentioned prior art, the present invention aims to provide a magnesium alloy negative electrode and a primary battery including the magnesium alloy negative electrode

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The magnesium alloy negative electrode is composed of the following components: Zn: 1.5wt%; Cu: 1.2wt%; Ca: 0.6wt%; impurity: <0.2wt%;

[0018] No. 1 battery capacity: discharge time (3.9Ω) 1360min.

[0019] Environmental testing: free of mercury, cadmium and lead, and can be safely degraded.

Embodiment 2

[0021] The magnesium alloy negative electrode is composed of the following components: Zn: 1.8wt%; Cu: 1.5wt%; Ca: 0.6wt%; impurity: <0.2wt%; the balance is Mg.

[0022] Capacity of No.1 battery: discharge time (3.9Ω) 1452min.

[0023] Environmental testing: free of mercury, cadmium and lead, and can be safely degraded.

Embodiment 3

[0025] The magnesium alloy negative electrode is composed of the following components: Zn: 2.0wt%; Cu: 1.8wt%; Ca: 0.8wt%; impurity: <0.2wt%;

[0026] Capacity of No.1 battery: discharge time (3.9Ω) 1420min.

[0027] Environmental testing: free of mercury, cadmium and lead, and can be safely degraded.

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Abstract

The invention relates to a magnesium alloy negative electrode and a primary battery comprising the same. The magnesium alloy negative electrode is composed of following components in percentage by weight: 1.5 to 2.2 wt% of Zn, 1.2 to 2.0 wt% of Cu, 0.5 to 0.8 wt% of Ca, not more than 0.2 wt% of impurities, and the balance being Mg. The magnesium alloy material does not contain any heavy metal suchas cadmium, lead, mercury, or the like. The longest discharge time of a primary battery having a negative electrode made of the magnesium alloy material can reach 1452 minutes, and the results of environmental protection tests show that the magnesium alloy material is pollution-free to the environment.

Description

technical field [0001] The invention relates to a primary battery, more specifically to a magnesium alloy negative electrode and a primary battery including the magnesium alloy negative electrode. Background technique [0002] With the increasing shortage of energy in all countries in the world, the increasing demand for energy, and the enhancement of people's awareness of environmental protection, the issue of seeking new energy is in front of us. This new energy must be a new battery product with no pollution, light weight, high energy, low price and strong adaptability. [0003] Generally speaking, the negative electrode of the battery is a metal alloy or an ionic compound of a metal. At present, the following metal alloys are widely used in the negative electrode of the battery: zinc, lead, cadmium, lithium, iron and other alloys. However, due to the needs of battery performance, heavy metals such as cadmium, lead, and mercury must be doped in the manufacturing process...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/46H01M4/06
CPCH01M4/06H01M4/466
Inventor 张娅陈秋荣张腾飞
Owner SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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