Praseodymium-free, neodymium-free and cobalt-free high capacity superlattice hydrogen storage alloy containing magnesium

A technology of hydrogen storage alloy and high capacity, applied in the field of hydrogen storage alloy, can solve the problem of difficulty in improving the discharge capacity of the alloy, and achieve the effects of low self-discharge performance, low cost, and reasonable PCT platform pressure
CN103436738AInactive Publication Date: 2013-12-11鞍山鑫普新材料有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
鞍山鑫普新材料有限公司
Publication Date
2013-12-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to praseodymium-free, neodymium-free and cobalt-free high capacity superlattice hydrogen storage alloy containing magnesium. The alloy is characterized in that a composite chemical formula of the alloy is one of Mm(1-x-y)LaxMgyNiaAlb, Mn(1-x-y-z)LaxMgyMzNiaAlb, Mm(1-x-y)LaxMgyNiaAlbNc or Mm(1-x-y-z)LaxMgyMzNiaAlbNc, wherein Mm is rare earth or misch metal at least containing one or more than one of La, Ce, Y, Sm and Gd; M is one or more than one of Ti, Zr and Hf; N is one or more than one of Mn, Sn, Cr, V, W and Mo; x, y, z, a, b and c represent molar ratios. Compared with the prior art, the alloy has the advantages of large discharge capacity, low cost and good low self discharge property.
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Description

technical field

[0001] The invention relates to the field of hydrogen storage alloys, in particular to a high-capacity magnesium-containing superlattice hydrogen storage alloy without praseodymium, neodymium and cobalt. Background technique

[0002] As the price of rare earth continues to rise, especially the substantial increase of rare earth metals such as praseodymium Pr and neodymium Nd, it has brought great pressure on the production costs of rare earth downstream industries such as magnetic materials and nickel-metal hydride batteries. Especially the nickel-metal hydride battery industry, due to the competition of other batteries such as lithium-ion batteries, has no cost advantage, and the consumer market is facing the danger of gradually shrinking, casting a shadow on the development of the industry.

[0003] How to reduce the production cost of hydrogen storage alloys on the premise of maintaining the performance of hydrogen storage alloys has become the key to the ...

Claims

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