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A Method for Improving the Properties of High-Temperature Superconducting Strips Using Electrochemical Method

A technology of high-temperature superconducting strips and chemical methods, applied in the field of improving the performance of high-temperature superconducting strips by electrochemical methods, can solve problems such as the shortage of non-renewable energy sources, improve superconducting transition temperature and critical current density, and improve performance , easy-to-operate effects

Active Publication Date: 2020-08-11
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, my country's energy, especially non-renewable energy is relatively short

Method used

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  • A Method for Improving the Properties of High-Temperature Superconducting Strips Using Electrochemical Method
  • A Method for Improving the Properties of High-Temperature Superconducting Strips Using Electrochemical Method
  • A Method for Improving the Properties of High-Temperature Superconducting Strips Using Electrochemical Method

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Embodiment 1

[0034] This embodiment is a method for improving the performance of the YBCO high-temperature superconducting tape by using an electrochemical method, wherein the structural diagram of the high-temperature superconducting tape is as follows figure 1 As shown, it includes a substrate 1, an intermediate layer 2, a REBCO high temperature superconducting layer 3, a protective layer 4, and the like. The intermediate layer 2 includes one or more of alumina, yttrium oxide, magnesium oxide, lanthanum manganate, lanthanum zirconate or cerium oxide. The protective layer 4 includes a silver protective layer. In other embodiments, a copper protection layer may also be deposited on the silver protection layer.

[0035] The method for utilizing the electrochemical method of the present embodiment to improve the performance of the YBCO high-temperature superconducting strip includes the following steps:

[0036] 1. Pour 500ml of acetone into the beaker, seal the mouth of the beaker with ti...

Embodiment 2

[0048] This embodiment is a method for improving the performance of a high-temperature superconducting strip by using an electrochemical method, including the following steps:

[0049] 1. Take 200 ml of organic reagents acetone and methanol, pour them into a beaker and mix thoroughly, seal the mouth of the beaker with tin foil, and put it in a ventilated and dry place for later use.

[0050] 2. Pour 50ml of ammonia water and hydrogen peroxide into another beaker and mix well, seal the mouth of the beaker with tin foil, and put it in a ventilated and dry place for later use.

[0051] 3. Take 20 cm of YBCO high-temperature superconducting tape as a sample, and completely immerse the sample in a beaker filled with uniformly mixed ammonia and hydrogen peroxide until the silver on the surface is completely dissolved. Among them, the YBCO high-temperature superconducting tape is deposited on the NiW base tape by the pulsed laser deposition method, and the cerium oxide intermediate lay...

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Abstract

The invention discloses a method for improving performance of a high-temperature superconduction strip by an electrochemical method. The method comprises the following steps of a) preparing an organicsolution; b) removing a protection layer of a high-temperature superconduction strip sample; c) electrochemically processing the high-temperature superconduction strip of which the protection layer is removed by the prepared organic solution; d) taking out the high-temperature superconduction strip sample after being processed by the electrochemical method, and drying the high-temperature superconduction strip sample; e) depositing the protection layer on a surface of the dried high-temperature superconduction strip sample; and f) performing oxygen-through annealing on the high-temperature superconduction strip sample deposited with the protection layer. By the method, the performance such as the superconduction conversion temperature and the critical current density of the high-temperature superconduction strip can be obviously improved; and meanwhile, the method is simple, is easy to operate and is completely and repeatedly controllable.

Description

technical field [0001] The invention relates to a high-temperature superconducting material, in particular to a method for improving the performance of a high-temperature superconducting strip by using an electrochemical method. Background technique [0002] my country has a vast territory and a large population, and is in a period of rapid industrialization and urbanization, with high energy consumption intensity. However, my country's energy, especially non-renewable energy is relatively short. With the further expansion of the economic scale, there will be great pressure on energy supply, and the contradiction between supply and demand will exist for a long time. As one of the most important energy sources in people's daily life, electric energy suffers an astonishing loss during transmission. About 10% of electric energy is consumed in the form of heat during transmission. [0003] If high-temperature superconducting tape can be used instead of ordinary copper wire as ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B13/00H01B12/06
CPCH01B12/06H01B13/00Y02E40/60
Inventor 王伟刘林飞郑通刘顺帆叶佳超李贻杰
Owner SHANGHAI JIAO TONG UNIV
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