Under the goal of "carbon peak and carbon neutral", the new energy market is getting bigger and bigger, and so is the demand. Hydrogen energy is regarded as an ideal clean energy source due to its good and stable chemical properties, low carbon and no pollution, sustainable regeneration and high energy density. UcoTest continues to focus on the development of new energy industry, and is committed to solving the high precision testing challenges of new technologies, applications and products. Below, Dr. You will take you into the world of hydrogen energy, the new "favorite" of new energy.
一、Hydrogen Energy Battery Overview
Hydrogen energy refers to a new form of energy with hydrogen as the energy carrier. Hydrogen energy cell is a new energy cell in which hydrogen and oxygen generate electricity through chemical reaction.
The chemical reaction between hydrogen and oxygen in the fuel cell only produces water and electric current, which is clean and low-carbon, produces no pollutant gases, and realizes zero emission in the true sense of the word, and hydrogen energy also has the advantages of renewable, high energy density, etc., so hydrogen energy is known as the "ultimate energy of the 21st century".
Among them, hydrogen battery is the core product of hydrogen energy industry.
二、How Hydrogen Energy Batteries Work
The basic principle of hydrogen energy battery is hydroxide fuel cell, which is mainly composed of electrolyte, catalyst, anode material, anode material, proton exchange membrane, gas diffusion layer, etc. Its working principle is to generate electric energy through redox reaction of hydrogen and oxygen on anode and cathode.
The specific process is: when hydrogen enters into the anode catalytic layer through the anode diffusion layer, a chemical reaction occurs under the action of catalyst to generate proton H+ and electron e-, at the same time, the proton passes through the proton exchange membrane to the cathodic catalytic layer, reacts with the oxygen and electrons to generate water molecules, and the electrons are transferred to the cathode through the external circuit to form the electric current.
三、Hydrogen Energy Battery Development Prospects
Hydrogen energy with the growing global demand for new energy, clean energy, and in the context of "carbon peak, carbon neutral", around the world have introduced policies to support the development of hydrogen energy batteries, to promote the development of green, clean, low-carbon, renewable energy has been the general trend. In addition, the market share of new energy vehicles is increasing, the performance requirements of new energy batteries and clean environmental protection requirements are also getting higher and higher.
The development and application of new catalysts, gas diffusion layers, proton exchange membranes and other key materials have further improved the energy conversion efficiency and stability of hydrogen energy batteries, making them the "dark horse" of the new energy battery industry.
四、Hydrogen Energy Battery Application Areas
At present, hydrogen energy cells are mainly used in the new energy automobile industry, which is the pioneer and important field of hydrogen energy application. In addition, there are also industrial stationary utilization such as: factories, buildings, residential buildings, etc., power supply, heating and so on. Compared with other electric vehicles, hydrogen fuel cells have higher energy density, which makes the car range higher, and the reaction product is water, which is green, low-carbon and pollution-free.
Many automobile companies such as South Korea's Hyundai, Toyota, BMW, etc. have launched hydrogen energy vehicles and vigorously promote hydrogen fuel cell vehicles. China has also released a corresponding plan, pointing out the importance of hydrogen energy in the field of new energy and promoting the research and development of hydrogen battery technology.
However, although the current production and transportation in the field of hydrogen energy battery has a certain technical basis, there are still some issues that need to be focused on, such as the environment of the plant, the safety performance of the battery, the selection and control of raw materials. At present, the preparation cost of hydrogen fuel cells is still relatively high, the cell reaction catalysts and film materials and other production materials are expensive, so the realization of the full popularization and use of hydrogen energy cells is still a long way to go.
五、Hydrogen Energy Battery Test CasesThickness measurement of titanium nitride films for hydrogen energy cells:Recently, a manufacturer specializing in new energy batteries plans to develop a hydrogen energy car battery, hoping to measure the thickness of the titanium nitride metal compound film on the titanium metal of the battery, with an accuracy of 1 nm. uKeys engineers chose the AF-3000 series of thin-film thickness measuring instrument for the customer to carry out the inspection according to the customer's needs:
Titanium Nitride Film Thickness MeasurementDetected titanium nitride film thickness of about 95.4nm, matching degree of 0.009081! After receiving the test report, the customer said that the measurement effect is very satisfied, said: "This kind of measuring instrument specializing in measuring the thickness of the film is very useful to us who specialize in new energy batteries, the film thickness affects the voltage, resistance, conversion efficiency, safety and many other factors, so the many layers of film in the battery need to be measured accurately. Many layers of film in the battery need to be measured accurately, with this type of portable measuring instrument, we measure the film is also more convenient, fast and accurate."
From the point of view of the measurement principle, the use of spectral interference principle of the film thickness gauge can only measure the light transmission or semi-transparent film, theoretically speaking, the metal material film and metal-like compounds film is impermeable to light, can not be detected.
However, if the film is thin to a certain extent, part of the material film will show light transmittance, then the film thickness gauge will be able to measure the thickness of metal films and metal compounds films. However, the transmittance of metal films and metalloid films of different materials and thicknesses to light of different wavelengths is uncertain. Ucometer's AF-3000 series film thickness gauges utilize deuterium and tungsten halogen lamps with maximum spectral wavelengths ranging from 180nm to 2400nm!
If you need to measure the thickness of transparent films, translucent films, metallic films and metal-like compounds, please contact UCOMETRIC to send us a sample for testing!
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