According to a recent report by the British Broadcasting Corporation (BBC), American scientists have created a new “microbattery†model with three-dimensional electrodes. Compared with current commercial batteries, new batteries with the same function are only one-tenth of that. The charging rate is 1000 times. Scientists said that once the safety problem is solved, the new battery will hopefully change the charging mode of consumer electronics devices and cars. The relevant research will be published in the latest issue of Nature News.
There are three components in the battery: the cathode and the anode at the two ends of the battery and the electrolyte as a "bridge". The breakthrough in the latest research is mainly that scientists have integrated the anode and cathode at the microscale.
They first made a grid of tiny polystyrene spheres; then filled the inside and outside of the sphere with metal; dissolved the sphere, leaving a three-dimensional metal stent, and added a nickel-tin to the metal scaffold. Alloy anode and manganese hydroxide mineral cathode; Finally, the device is attached to the surface of a glass, and the glass surface is immersed in a liquid at 300 degrees Celsius (as an electrolyte).
The head of the study, Professor William King of the University of Illinois, said: “The cathode and anode are so close together that the ions and electrons at the two poles of the battery do not have to travel far enough to generate energy faster. Technology can be expanded to make the battery bigger."
Kim pointed out that although smartphones and Other electronic devices have benefited a lot from microelectronics, progress in the battery field has been very impressive, and the latest research has changed this situation. The "big head" of the new battery with the same function is only one-tenth of the original battery. The new battery can be used in the car.
Other battery experts are happy with the new research, but they are also concerned that safety issues may become a "stumbling block" for their marketization.
Professor Claire Gray from the Department of Chemistry at Cambridge University in the United Kingdom stated: "The challenge is to create a sufficiently stable microbattery array that will not short circuit the entire battery array through an inexpensive and scalable process." Inorganic Chemistry, University of Oxford Peter and Edwards, an expert in the field of energy and energy, also pointed out: "The latest research has proved that we can obtain high energy density, but the problem lies in how to scale up for industrial production, while finding a simpler manufacturing method and solving security problems. It is not known if this microbattery is prone to spontaneous combustion and there is a problem with lithium cobalt oxide batteries."
Kim acknowledged that because the liquids currently used are prone to spontaneous combustion, safety issues do exist. He said that the test equipment uses very little liquid and this poses a very low risk of explosion. However, if the battery is made large, the risk may increase. However, he plans to use a safer polymer electrolyte solution to solve this problem. He hopes that by the end of this year, the technology will be able to power electronic equipment and automobiles. (Liu Xia)
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