It is reported that the R&D team has developed a prototype of rechargeable solid-state battery based on fluoride ions. Theoretically, the battery prototype has higher energy density. In principle, the battery uses fluoride ions to conduct electricity and generates electricity by transferring fluoride ions from one electrode to another. The anode is composed of fluorine, copper and cobalt, and the cathode is mainly composed of lanthanum. In addition, the researchers replaced the liquid electrolyte used in lithium-ion batteries with solid electrolyte. Another advantage of this solid-state battery is its high thermal stability and no danger of fire. Engineers can greatly improve the charging and discharging power of batteries without worrying about overheating and spontaneous combustion of batteries.
Of course, at present, this battery technology is still facing great challenges. One of them is that fluoride ions will move to the electrode only when the solid electrolyte is fully heated in a high temperature environment. In other words, the battery can only work at high temperature, and the high temperature environment may cause the battery electrodes to expand when heated. However, the research teams of Kyoto University and Toyota said that they had found a way to prevent the electrode from swelling, that is, to make the electrode from an alloy of cobalt, nickel and copper. However, the specific improvement needs to be verified by experiments.
The development of new energy automobile industry has greatly promoted the progress of battery-related technology. At present, people are increasingly looking forward to the early commercialization of fluoride ion batteries. However, judging from the development track of lithium-ion battery, the lithium-ion prototype battery was developed from 1985 to 199 1 year, with an interval of 6 years. Therefore, the commercialization of fluoride ion batteries still has a long way to go. According to experts, commercially feasible fluoride ion batteries may not be popularized until the 1930s.
This article comes from car home, the author of the car manufacturer, and does not represent car home's position.