Rear earth-ferrotitanium hydrogen storage alloy for wind power storage and preparation method thereof

A hydrogen storage alloy and rare earth technology, which is applied in the field of rare earth-titanium iron hydrogen storage alloy for wind power energy storage and its preparation, can solve the problems of reduced activation times of the alloy, large wind power generation, harsh activation conditions, etc., and reduce the cost of raw materials. , Reduce volatilization loss, solve the effect of difficult activation

Active Publication Date: 2015-12-09
CENT IRON & STEEL RES INST
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Problems solved by technology

Third, wind power has the characteristics of anti-peak regulation, that is, when the electricity load is at a low point at night, the wind power generation capacity is relatively large. The phenomenon
The research found that by a

Method used

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  • Rear earth-ferrotitanium hydrogen storage alloy for wind power storage and preparation method thereof
  • Rear earth-ferrotitanium hydrogen storage alloy for wind power storage and preparation method thereof
  • Rear earth-ferrotitanium hydrogen storage alloy for wind power storage and preparation method thereof

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preparation example Construction

[0048] The preparation method of the rare earth-titanium iron hydrogen storage alloy for wind power energy storage of the present invention comprises the following steps:

[0049] A. Proportion: Composition of Ti according to chemical formula 1.1-x Fe 0.8 mn 0.2 m x +yLaNi 5 Carry out weighing and proportioning, wherein, x is the atomic ratio, 0

Embodiment 1

[0057] Example 1Ti 1.055 Fe 0.8 mn 0.2 La 0.03 Ce 0.015 +5%LaNi 5

Embodiment 2

[0058] Example 2Ti 1.055 Fe 0.8 mn 0.2 La 0.03 Ce 0.015 +5%LaNi 5

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Abstract

The invention belongs to the technical field of hydrogen storage alloys, and relates to a rear earth-ferrotitanium hydrogen storage alloy for wind power storage and a preparation method thereof. The rear earth-ferrotitanium hydrogen storage alloy consists of Ti, Fe, Mn, multi-component rear earth and few LaNi5 alloy, and has a chemical formula as follows: Ti1.1-xFe0.8Mn0.2Mx+yLaNi5, wherein x is an atomic ratio greater than 0 and less than or equal to 0.09, y is mass percent greater than or equal to 2% and less than or equal to 8%, and M is multi-component rear earth which further contains at least one of Ce, Y, Nd, Pr and Gd in addition to La with the atomic ratio of 0.5-0.7. The alloy is prepared by the following steps: proportioning, carrying out vacuum smelting, carrying out rapid quenching, carrying out mechanical crushing and carrying out ball-milling. The rear earth-ferrotitanium hydrogen storage alloy mainly adopts Ti and Fe elements which are rich in the natural world and cheap, so that large-scale popularization and application are facilitated. Compared with a smelting and annealing process, the alloy with high-density nanocrystalline grains is prepared through the rapid quenching process; and by virtue of mechanical ball-milling, the alloy forms high-density crystal defects. The rapid quenching process and the ball-milling process are simple and easy to grasp, so that the preparation method is suitable for large-scale production.

Description

technical field [0001] The invention belongs to the technical field of hydrogen storage alloys, and relates to a rare earth-iron-titanium hydrogen storage alloy for wind power energy storage and a preparation method thereof. Background technique [0002] As a clean renewable energy, wind energy has become the fastest-growing way of power generation in the world, and it is developing in the direction of large-scale, large-capacity, and industrialization. At present, there are three deficiencies in wind power generation. First, wind power has severe fluctuations in voltage, frequency and phase. In order to maintain the stability of the grid, the power company limits the amount of wind power connected to the grid to no more than 10% of the grid capacity. Second, my country's wind power generation areas are far away from the load center, requiring large-scale long-distance transmission lines. Third, wind power has the characteristics of anti-peak regulation, that is, when the ...

Claims

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Application Information

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IPC IPC(8): C22C14/00C22C1/03
Inventor 张羊换尚宏伟李龙文赵栋梁祁焱郭世海
Owner CENT IRON & STEEL RES INST
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