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Magnesium dry cell

A technology of dry batteries and magnesium alloys, applied in dry batteries, battery electrodes, circuits, etc., can solve the problems of no commercial promotion of magnesium dry batteries, long voltage lag time, corrosion of magnesium electrodes, etc., and achieve controllable voltage lag time and high magnesium utilization rate. , The effect of less self-corrosion

Inactive Publication Date: 2004-01-07
FUJIAN HUAMEI NEW TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, magnesium alloy is used as the anode material of the battery, because in the case of a certain content of the anode material, magnesium can obtain higher working voltage and more electric energy, and its discharge characteristics are excellent and its storage performance at high temperature is excellent, but this The magnesium electrode of this kind of magnesium dry battery is easy to corrode and lose energy (that is, self-discharge), and a layer of Mg(OH) is formed on the surface of the magnesium electrode during storage. 2 The passivation film will lead to a long voltage lag time during use, that is, it takes a period of time to reach the working voltage after the switch is activated.
Based on the above reasons, at present, there is no commercial promotion of magnesium dry batteries.

Method used

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Embodiment 1

[0033] Magnesium dry battery, it uses magnesium alloy as the anode material, magnesium is the main component in the magnesium alloy, metal A is also contained in the alloy, the metal A is alkaline earth metal barium, and its addition accounts for 0.1% of the total weight, and the magnesium alloy also contains Contains 1% by weight of aluminum, 0.5% by weight of zinc, and an appropriate amount of manganese.

[0034] The magnesium dry battery uses oxygen-containing salt Mg(ClO) with magnesium 4 ) 2 neutral electrolyte solution, and an organic corrosion inhibitor is added to the electrolyte.

[0035] The parts not described in this embodiment are the same as the prior art.

Embodiment 2

[0037] Magnesium dry battery, which uses magnesium alloy as the anode material, magnesium alloy is the main component, and the alloy also contains metal A, metal A is alkaline earth metal barium and calcium, and its addition accounts for 2% of the total weight. Magnesium alloy It also contains 10% of the total weight of aluminum, 5% of the total weight of zinc, and an appropriate amount of manganese.

[0038] The parts not described in this embodiment are the same as those in Embodiment 1.

Embodiment 3

[0040] Magnesium dry battery, which is made of magnesium alloy as the anode material. Magnesium is the main component of the magnesium alloy. The alloy also contains metal A. Metal A is alkali metal sodium, potassium and alkaline earth metal calcium and beryllium. The amount added accounts for the total weight The magnesium alloy also contains 6% of the total weight of aluminum, 2% of the total weight of zinc, and an appropriate amount of manganese.

[0041] The magnesium dry battery uses oxygen-containing salt MgBr with magnesium 2 The neutral electrolyte solution, the electrolyte is also added with chromate (NH 4 ) 2 CrO 4 as a corrosion inhibitor.

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Abstract

This invention relates to a Mg dry battery with Mg alloy as the anode material in which, Mg is the main component is Mg alloy and the key point is that the said alloy also includes metal A which is either alkal; metal, alkali earth metal or or rare earth metal or any combination for thee materials. The thickness of the passive film can be controlled, voltage delay time can be controlled, the Mg electrode is seldom corroded and the said Mg alloy does not includes Hg and Cd.

Description

technical field [0001] The invention relates to a battery whose electrode is based on a magnesium alloy, in particular to a magnesium dry battery using a magnesium alloy as an anode material. Background technique [0002] In the prior art, magnesium alloy is used as the anode material of the battery, because in the case of a certain content of the anode material, magnesium can obtain higher operating voltage and more electric energy, and its discharge characteristics are excellent and its storage performance at high temperature is excellent, but this The magnesium electrode of this kind of magnesium dry battery is easy to corrode and lose energy (that is, self-discharge), and a layer of Mg(OH) is formed on the surface of the magnesium electrode during storage. 2 A passivation film will lead to a long voltage lag time during use, that is, it takes a period of time to reach the working voltage after the switch is activated. Based on the above reasons, currently, there is no c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/46H01M6/06
Inventor 李华伦李书伟杨仲可黄育宏
Owner FUJIAN HUAMEI NEW TECH DEV
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