The Samsung Technology Research Institute (SAIT) has recently successfully developed a new solution to increase the capacity of lithium batteries, using graphene plus silicon anode combinations, which is expected to be commercially available soon.
This article refers to the address: http://
The SAIT team directly coats the surface of the silicon anode material with a layer of graphene and uses a chemical vapor deposition (CVD) process to avoid the formation of silicon carbide, which uses carbon dioxide as the oxidant.
According to the researchers, because graphene has good electrical and mechanical properties, it can slide silicon nanoparticles to the left and right and prevent silicon nanoparticles from diffusing in the electrode gap. Graphene-coated silicon nanoparticles increase battery capacity while maintaining good performance.
Once paired with the cathode of the currently available lithium battery, the silicon anode will allow the lithium battery cell to have an energy density of 1.5 to 1.8 times that of a conventional lithium battery after 200 charge and discharge cycles.
In addition to the increase in energy density, since the capacity change of the battery anode is less than 10% of the entire battery unit, the battery using the new scheme does not have any problem in terms of safety.
In addition, the SAIT team also emphasized that the most critical part of the process is to avoid the formation of silicon carbide. Silicon carbide is a poor electrical insulator and is inactive with lithium ions, and once formed, it will hinder the diffusion of lithium ions into the silicon phase. After a series of experiments, the SAIT team found that carbon dioxide as an oxidant can reduce the reaction temperature while avoiding the formation of silicon carbide.
SAIT said that although the above program is still a research project, it will take some time to apply it to real life. However, if the electric vehicle adopts this technology in the future, its cruising range will be greatly improved.
The LTM series is designed to meet the needs of human-computer interaction in the market. Our engineers have developed 8-inch to 65-inch LCD touch monitors and touch all-in-ones to provide longer life, high picture quality, and a wide temperature range. It can be used for uninterrupted operation in rugged equipment in harsh environments (high and low temperature, humidity, salt spray and rain) and harsh conditions (high shock, high vibration, and fall). Support a variety of signal input interfaces, including VGA and Video, special requirements can increase DVI and HMI interfaces; support DC12V or AC220V power input, special requirements support DC 9 ~ 36V wide voltage input can be wall-mounted, folding / rotating bottom seat Embedded installation, open installation and other diversified installation methods to meet the various needs of customers. Specially designed folding base, adjustable for multiple angles; no shaking when touched; TFT digital true color LCD display mode to meet customer visual effects; hidden adjustment panel to make the frame more smooth and flat; touch screen can flexibly choose serial port, The USB port communicates with the host, using resistive screens, sonic screens, and infrared screens to meet customer environmental needs.
desktop display,desktop monitors,desktop monitor touch screen,desktop monitoring,best desktop monitors,desktop computer monitor
Shenzhen Hengstar Technology Co., Ltd. , https://www.angeltondal.com