Working Principle of Duplex Battery Fuel
I. Principles of Fuel Cells
Shuangdeng battery is a power generation device that directly converts the chemical energy of fuel into electric energy. The principle of this device is an electrochemical device, and its composition is the same as that of ordinary batteries. Monomer batteries consist of positive and negative electrodes (fuel electrodes and oxidizer electrodes) and electrolytes. The difference is that the active substances of general batteries are stored inside the batteries, so the capacity of batteries is limited. The positive and negative electrodes of fuel cells do not contain active substances, but are catalytic converting elements. Therefore, fuel cells are truly energy conversion machines that convert chemical energy into electrical energy. When the battery is working, fuel and oxidant are supplied from outside to react. In principle, fuel cells can generate electricity continuously as long as the reactants are continuously input and the reaction products are continuously eliminated.
The concept of double-deck fuel cell was proposed as early as 1839, but it did not make substantial progress until the 1950s. In the 1960s, the battery was successfully applied to Apollo lunar landing spacecraft. Since the 1960s, hydrogen and oxygen fuel cells have been widely used in the field of aerospace, and have been applied in the field of automobiles. However, in the field of consumer electronics, hydrogen and oxygen fuel cells belong to a relatively new battery technology.
Since the popularity of smartphones, battery life has become a key technical constraint. According to a survey on the shortcomings of the iPhone conducted by FixYa, a Japanese smartphone user service company, the number one is the short battery life, accounting for 35%. The reason why the battery life of mobile phones can not change qualitatively is that it can only rely on the development of lithium-ion batteries, and the speed of lithium-ion batteries is far behind the growth rate of demand for batteries for smart phones. As the pioneer of smartphones, Apple needs fuel cell technology to solve this problem.
CHARACTERISTICS OF FUEL CELLS
Shuangdeng fuel cell has the advantages of high power generation efficiency and less environmental pollution.
Fuel cells directly convert chemical energy into electrical energy by chemical reaction between fuel and oxidant. There is no intermediate energy conversion link, so the energy conversion efficiency of this power generation method can be as high as 50%. The fuel used is not only natural gas, gas and liquefied fuel, but also methanol, biogas and even wood. Different fuels can be selected for fuel cell power generation system according to the specific conditions of different regions. When natural gas and gas are used as fuels, the amount of pollutants discharged is less and the environment is more friendly.
The main challenges in the application of this technology and consumer electronics are portability and cost. According to media reports, Apple has applied for a patent that makes it unnecessary for fuel cell systems to integrate large and heavy batteries by allowing fuel cells and rechargeable batteries to work together, thus significantly reducing the size, weight and cost of fuel cell systems.
3. It will take time to apply it to Apple devices
Intelligent Energy, a fuel cell company that works with Apple, has a consumer business, and its website says it can tailor batteries to customers'requirements to support a variety of devices, including laptops and mobile phones.
Shunden battery analysis fuel cell is a kind of electrochemical battery which converts the chemical energy of fuel and oxidant into electric energy directly and effectively. In order to clarify the definition of fuel electricity, it is clearly stipulated. Fuel refers to conventional fuels, namely fossil fuels and derivatives derived therefrom, such as liquid and gas fuels such as hydrogen, hydrazine, hydrocarbons, gas, etc., excluding metal fuels, such as sodium, etc. Oxygen penalty refers to oxygen or oxygen in the air, excluding non-oxygen oxidants.
In 1839, Grove in England first reacted hydrogen and oxygen in batteries, producing water and publishing weak currents. At the end of the 19th century, with the creation and development of thermodynamics, it was theoretically pointed out that the power generation efficiency of fuel cells could not be limited by the Carnot cycle, so it had the possibility of higher energy conversion efficiency than that of heat engines. In the late 1950s, due to the urgent need of space technology development, fuel cell research was promoted, and great progress was made. Fuel pool was successfully applied to the lunar landing flight and space shuttle. At the end of the HelpAge, fuel cells for aerospace reached a climax because of the successful power supply in the American Apollo spacecraft. Later, with the end of the U.S. lunar landing program and the decline of interest in fuel cells in the automotive industry, fuel cell development has significantly shrunk. However, since 1973, due to the impact of the energy crisis, the research and development of Tiantian Electric Power Company has been re-emphasized.
In addition, people are also interested in the application of fuel cells to ground power generation based on the consideration of the effective use of energy and environmental protection. After a period of basic research and applied research, the governments of the United States, Japan and other countries have strengthened the basic research and applied research of Fuel Electricity Other, and the government investment has increased repeatedly. They have all started to draw up a long-term plan for the research and development of Fuel Electricity Other and the implementation of the organizational plan. Experts in Japan predict that by the end of the next two years, 13% of Japan's electricity needs will be supplied by fuel cells (25ukq0). Compared with a single power plant, fuel cells can be built faster. For example, it takes only two years to install 4.8 IfW power plant, five years for thermal power plant and ten years for nuclear power plant. Fuel electricity emits only air and water without pollution to the environment. Batteries fueled by derivatives of petroleum or coal generate less sulfur dioxide and oxidation gardens per 109 J of electricity, respectively, than O.055 and 108.
Therefore, the Shuangdeng battery fuel cell works cleanly and quietly, and can be built on the service site, saving the cost of power supply and transformation.