Decomposition of factors affecting the life of lithium batteries

Lithium battery technology, a rechargeable lithium battery that moves lithium ions back and forth to charge and discharge, makes the device charge faster and last longer. An international research team led by SLAC's Stanford Institute of Materials and Materials Science and Stanford Materials Science Professor William Cui published the findings today. Macromolecular compounds. In the past, it was a bit like a black clip, said Martin Bazant, a professor at MIT and another person in charge of this research. You can see that the material works very well, and certain additives seem to help, but you can’t know exactly where the lithium ion will go at each step of the process. You can only try to develop a theory and regress from measurement. With new instruments and measurement technologies, we have begun to have a more rigorous scientific understanding of how these things work. The popcorn effect Anyone who has taken an electric bus, used a power tool, or used a cordless vacuum is likely to benefit from the battery material they researched, lithium iron phosphate. It can also be used for the start-stop function of cars and steam turbines and grids that store wind and solar energy. A better understanding of this material and other similar materials may lead to faster charging, longer life and more durable batteries. But until recently, researchers could only speculate on the mechanism that would make it useful. When the lithium battery is charged and discharged, lithium ions flow from the liquid solution into the solid storage compartment. But once it enters the solid, the lithium rearranges, sometimes causing the material to split into two different phases, just like when oil and water are mixed together. This creates the so-called popcorn effect of awakening. The ions gather together to form hot spots, thereby shortening battery life. Researchers from the Russian Federation Research Nuclear University (Russia) have made a breakthrough in extending the service life of lithium batteries. They are developing a radiopharmaceutical β-voltaic battery containing a nickel-63 nano-cluster radioisotope film. The concept is to develop a safe nuclear battery with a lifespan of 100 years for use in pacemakers, miniature glucose sensors, arterial blood pressure monitoring systems, remote control objects and miniature robots, as well as independent systems that can work for a long time. The research results are published in the journal. Use physical correspondence. Researchers are more interested in projects than ever before, developing nanotechnology, miniaturizing technical equipment, and most importantly, nano-communication systems. The latest achievements in creating microelectromechanical and nanoelectromechanical systems that combine nanoelectronics and mechanical components can make it possible to develop microscopic physical, biological or chemical sensors. However, the lack of micro-batteries powers micro-electro-mechanical systems and nano-electro-mechanical systems, hindering the large-scale introduction of such devices. Today, scientists are studying the possibility of manufacturing miniature lithium batteries, solar panels, solid-state batteries and various types of coolers. However, these batteries are still too large to develop true micro and nano systems. Another way to power advanced microelectromechanical and nanoelectromechanical systems is to use radioisotope batteries. The radio isotope or nuclear or atomic battery converts the energy of the decay of the elemental stable element (nucleus) radioactive material into electrical energy. The mass and volume of these elements have a high energy density. The duration of the continued energy emission varies with the choice of nuclide. The silent radio nuclide battery can work without errors or long-term maintenance. The magical properties of nickel-63 thermoelectric conversion is considered to be one of the most convenient ways to convert radioactive decay energy into electrical energy. But scientists are also studying beta-voltaic batteries and their practical use. By installing a wireless phone radionuclide that emits soft beta radiation in a miniature battery, the user and nearby objects can be protected from radiation. Therefore, this battery will be widely used. The Mayphy researchers studied the electrophysical properties of the nanocluster nickel film and selected the best parameters for the experiment. The purpose is to establish a system that effectively converts the beta decay energy of the nickel-63 isotope into electrical energy. The nickel-63 radionuclide is one of the most promising radioisotopes in the β-voltaic process. The half-life of this soft beta radiation emitter is very long, 100.1 years. Therefore, this magical element is very suitable for powering various systems that do not require high output. Nickel, which is elastic, relatively inert and easy to produce, is an effective metal in terms of its properties. It does not have to be stored and transported in a container. Researchers are trying to improve the efficiency of the current system, converting the beta decay energy of the nickel-63 element into electrical energy, and looking for alternative physical systems. This approach is very promising. Mayphy's researchers are using new methods. PyltrBorisAum, an assistant professor at the Mayphy School of Physics and Technology Metrology, said that researchers have developed an unusual physical system that allows secondary electrons to appear in nanostructured nickel films. Greatly enhance the current signal caused by a series of non-momentum conservation of beta particles. He pointed out: Relatively speaking, it is relatively easy to make a test system. The system is composed of densely packed nickel microclusters. The coefficient distribution of gold nanoparticles on the surface of silica is a broadband dielectric, which depends on Their size. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.