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Easily activated hydrogen storage alloy, its manufacturing method and melting equipment

A hydrogen storage alloy and a manufacturing method technology, applied in the field of hydrogen energy, can solve the problems of hours to tens of hours, even repeated hydrogen charging and discharging several times to a dozen times, effective hydrogen storage density of sacrificial alloys, poor activation performance, etc. , to achieve the effect of reducing labor input, eliminating crushing and pulverizing processes, and saving hydrogen

Active Publication Date: 2020-09-04
上海铂陆洁安新能源科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the problem with titanium-iron-based hydrogen storage alloys is that the activation performance is not good. The material needs to be incubated and activated for a long time at a temperature of 400°C in a 4MPa high-purity hydrogen atmosphere for several hours to dozens of hours, or even repeatedly charged and discharged. Hydrogen several to ten times, the alloy material will absorb hydrogen
Although this method slightly improves the activation performance of titanium-iron-based hydrogen storage alloys, the activation conditions still achieve low-cost, high-efficiency operation, and there are still problems such as sacrificing the effective hydrogen storage density of the alloy, increasing alloy pulverization, and affecting cycle life. , the practical application value is low

Method used

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  • Easily activated hydrogen storage alloy, its manufacturing method and melting equipment
  • Easily activated hydrogen storage alloy, its manufacturing method and melting equipment
  • Easily activated hydrogen storage alloy, its manufacturing method and melting equipment

Examples

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Embodiment 1 to 5

[0056] The contents of Examples 1 to 5 are shown in Table 1.

[0057] Table 1 Representative formula components of easily activatable titanium-iron hydrogen storage alloys of the present invention

[0058]

Embodiment 6

[0061] A kind of easily activatable titanium-iron series hydrogen storage alloy Ti in embodiment 1 in above-mentioned table 1 50 Fe 40 mn 5 Cr 5 - (TiFe) 44 Nb 56 , the preparation method adopted is as follows:

[0062] According to embodiment 1 formula titanium-iron series hydrogen storage alloy main component Ti 50 Fe 40 mn 5 Cr 5 Prepare raw materials. Among them, the titanium material is made of industrial sea surface titanium with a purity of 98%, which is cleaned and dried with weak acid, the iron material is made of 99% pure metal iron rod, and the surface oxide scale is removed by grinding wheel, and the manganese material is made of sheet metal with a purity of 99%. Manganese and chromium are metal chromium blocks with a purity of 98%. After the above raw materials are crushed, they are mixed and stacked in a three-high graphite crucible coated with BN oil on the surface of the induction melting furnace, and the induction melting furnace is evacuated to 5×10...

Embodiment 7

[0064] A kind of easily activatable titanium-iron series hydrogen storage alloy Ti in embodiment 2 in above-mentioned table 1 38 (FeV 80 ) 12 Fe 40 mn 10 - (TiFe) 44 Nb 56 , the preparation method adopted is as follows:

[0065] According to embodiment 2 formula titanium-iron series hydrogen storage alloy main component Ti 38 (FeV 80 ) 12 Fe 40 mn 10 Prepare raw materials. Among them, the titanium raw material adopts industrial titanium rods with a purity of 98%, FeV 80 The raw materials are block materials that meet the national standards. The iron raw materials are made of pure metal iron rods with a purity of 99%. The above three raw materials are all polished by grinding wheels to remove surface scale and impurities. The manganese raw materials are made of sheet metal manganese with a purity of 99%. After the raw materials are chopped and mixed, they are placed in a specially designed water-cooled copper crucible in an electric arc melting furnace, and the vac...

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Abstract

The invention discloses an easy-to-activate hydrogen storage alloy and a manufacturing method thereof and smelting equipment. The chemical formula of the easy-to-activate hydrogen storage alloy is Ti50-xMxFe50-yNy-(TiFe)100-aAa, wherein M is one or several kinds of Fe, V, Zr, Mg and Al, N is one or several kinds of Cr, Mn, Co and Ni, A is one or several kinds of Li, Nb, La, Ce, Nd, Sm and Y, 0<=x<=25, 0<y<=25, and 40<a<=80. According to the hydrogen storage alloy, the effective hydrogen storage density, the hydrogen adsorption and desorption speed, pulverization resistance, the cycle life andthe like keep the original performance advantages.

Description

technical field [0001] The present application relates to the technical field of hydrogen energy, in particular to an easily activated hydrogen storage alloy, its manufacturing method and smelting equipment. Background technique [0002] Hydrogen energy is the future star in the energy field, and is called the "ultimate energy" by industry experts. It has many advantages such as a wide range of hydrogen sources, high combustion calorific value, clean and pollution-free, multiple utilization forms, and good safety. It is used in vehicles, Mobile equipment such as ships, drones, and aerospace, as well as mobile and stationary energy storage, have been commercially applied. [0003] The storage of hydrogen energy is one of the bottlenecks in the development of the hydrogen energy industry. There are three storage methods for hydrogen: high-pressure gaseous state, low-temperature liquid hydrogen, organic liquid, and solid state. At present, the main hydrogen fuel cell vehicles...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C30/00C22C1/02C22F1/00H01M8/22
CPCC22C1/02C22C30/00C22F1/00H01M8/22Y02E60/50
Inventor 李志林
Owner 上海铂陆洁安新能源科技有限责任公司