Anode plate material for magnesium cell

A technology for magnesium batteries and plates, applied in the direction of electrode carriers/collectors, etc., can solve problems such as stress corrosion and delamination corrosion, high production costs, and reduced utilization of magnesium

Inactive Publication Date: 2003-12-10
FUJIAN HUAMEI NEW TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Magnesium-manganese laminated battery anode plates are now made of extruded or rolled magnesium alloy sheets. Whether it is extruded or rolled, the production process is very complicated, resulting in high production costs, especially for magnesium-manganese laminated batteries. Anodic magnesium alloy plates with a thickness of less than 1 mm are more difficult to produce and cost more
The metallographic structure of extruded or rolled anode magnesium alloy is very unfavorable to the corrosion resistance of the battery, especially the thin anode magnesium alloy plate. First, there are many p

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0008] The magnesium battery anode plate of the present invention is a magnesium battery anode plate formed by one-time casting or casting and rolling from a liquid anode magnesium alloy material by continuous casting or continuous casting and rolling technology, and the thickness of the anode magnesium alloy plate is selected according to the model of the battery.

[0009] The composition of magnesium battery anode plate is based on magnesium, and contains 5-8% aluminum, 0.5-2.5% zinc, 0.1-0.5% manganese, 0.1-1% trace elements (trace elements can be alkali metal Such as lithium, alkaline earth metals such as calcium and barium, rare earth metals such as blue and cerium, etc.). The optimal composition is: 6% Aluminum, 1.5% Zinc, 0.35% Manganese, 0.25% Alkaline Earth Metals, and the remainder Magnesium.

[0010] Adopt the same structural form as the zinc-manganese laminated battery, and use the anode plate of the magnesium battery as the anode plate of the magnesium-manganese l...

Embodiment 2

[0013] The magnesium battery anode plate of the present invention can be used as the magnesium alloy anode plate of the magnesium seawater battery.

[0014] The parts not described in this embodiment are the same as those in Embodiment 1.

Embodiment 3

[0016] The magnesium battery anode plate of the present invention can be used as the magnesium alloy anode plate of the magnesium-air battery.

[0017] The parts not described in this embodiment are the same as those in Embodiment 1.

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PUM

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Abstract

The anode plate material of magnesium cell is a continuously cast or continuously cast-rolled magnesium alloy, and its metallographic structure is a column crystal imward grown from surface layer andits structure is compact. Said anode plate material is an alloy using magnesium as base body and adding several elements, and said plate material is applicable to magnesium manganese laminated battery, cylindrical magnesium manganese dry battery, magnesium air cell and magnesium sea-water battery.

Description

Technical field: [0001] The invention belongs to the constituent materials of chemical power sources, in particular to the anode materials of magnesium batteries. technical background [0002] Magnesium batteries, such as magnesium-manganese laminated battery packs, are characterized by high voltage, high power, high capacity, storage resistance, excellent low-temperature discharge performance, and environmental protection (no mercury, no cadmium, no lead). In addition, the raw material resources of this battery are abundant, the production process is simple, and the production cost is low. It has realized the requirements of communication, electrical appliances, military, etc. that require more advanced laminated battery packs. Magnesium-manganese laminated battery packs have been applied in the military of some countries. However, magnesium-manganese laminated battery packs have not been commercialized. The reason for this situation is that apart from technical factors, m...

Claims

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Application Information

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IPC IPC(8): H01M4/66
CPCY02E60/10
Inventor 李华伦黄育宏李书伟杨仲可
Owner FUJIAN HUAMEI NEW TECH DEV
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