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Negative electrode alloy material for nickel-hydrogen power battery

A technology for power batteries and alloy materials, applied in battery electrodes, circuits, electrical components, etc., can solve problems such as poor dehydrogenation kinetics

Inactive Publication Date: 2006-10-18
黄长庚 +3
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this alloy has poor dehydrogenation kinetics due to the overly stable hydride

Method used

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  • Negative electrode alloy material for nickel-hydrogen power battery
  • Negative electrode alloy material for nickel-hydrogen power battery
  • Negative electrode alloy material for nickel-hydrogen power battery

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Embodiment Construction

[0022] The composition of the negative electrode alloy material for Ni-MH power battery of the present invention is Mm 1-x Mg x Ni 4.5-y co y mn z Al 0.7-z , where, 0≤x≤0.1; 0.1≤y≤0.6; 0.1≤z≤0.6, Mm is misch.

[0023] Mm prepared by the present invention 1-x Mg x Ni 4.5-y co y mn z Al 0.7-z (0 ≤ x ≤ 0.1; 0.1 ≤ y ≤ 0.6; 0.1 ≤ z ≤ 0.6, Mm is mixed rare earth) alloy is suitable for the negative electrode material of nickel-metal hydride power battery, not only can greatly reduce the cost of the alloy, but also can improve the performance of the alloy, Facilitates high power output.

[0024]The addition of Mg in the alloy mainly plays a positive and negative role. The positive role is to inhibit the lattice expansion rate of the alloy in the c-axis direction, thereby improving the life of the low-cobalt alloy, that is, the addition of Mg plays the role of Co , but the price of Mg is much lower, so the cost of the alloy can be greatly reduced; the negative effect is: th...

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Abstract

The present invention relates to a negative electrode alloy material for nickel hydrogen power cell. Its composition is Mm1-xMgxNi4.5-yCOy Mn2 Al0.7-2 (Mm is mixed rare-earth), in which the added quantity of Mg is 0-0.1; Co content is 0.1-0.6, Mn content is 0.1-0.6, besides, Mg element is added into the alloy by adopting form of MgNi2 alloy.

Description

technical field [0001] The invention generally relates to the field of batteries, in particular to negative electrode alloy materials for nickel-hydrogen power batteries. Background technique [0002] Energy and the environment are two major issues facing contemporary mankind. Energy is the source of power for human activities, and a good environment is the basis for human survival and development. According to reports, the proven reserves of fossil fuels (oil, natural gas and coal, etc.) in the world will be exhausted in 40 to 50 years according to the current consumption rate. Therefore, exploring new pollution-free energy sources to replace fossil fuels is an urgent task related to the future and destiny of mankind. [0003] In recent years, with the development of production and the improvement of people's living standards, especially the popularization of automobiles, environmental pollution has become increasingly serious. According to reports from authoritative mon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/38C22C1/00C22C19/00
CPCY02E60/10
Inventor 黄长庚杨金洪张建洪刘安勇
Owner 黄长庚