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Californian doctoral student has developed a rechargeable battery that can last up to 400 years and with more than 200 cycles.
A stunning new discovery has been made by a student at the University of California named Mya Le Thai, which could change the future of all the batteries the world currently has. The student discovered, by accident, a rechargable battery capable of lasting up to 400 years. Thai's team was carrying out experiments and research on the use of nanowires for possible compatibility with batteries. Until, one day, the student changed the use of nanowires by covering them with gold in manganese dioxide and an electrolyte gel.
Rechargeable battery reaches 200 cycles
According to the chairman of the chemistry department at the university where Thai is a doctoral student, Reginald Penner, the project began to take “its first steps” with these gel capacitors, and that was when everyone was surprised.
According to Mya, the new rechargeable battery has already surpassed 10 cycles and is still advancing. After a few days, the researcher returned and stated that the battery had exceeded 30 cycles. According to Reginald, this went on for about a month, making this discovery essential for today's market. For example, a laptop's rechargeable battery has a lifespan of between 300 and 500 charge cycles only.
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The nano-battery created by the student managed to reach 200 thousand cycles in just three months. That is, it could significantly expand the average lifespan of a rechargeable battery, eliminating the near-constant need to charge the device. In addition, it would also avoid the famous “addiction” and consequently changing the battery, considering that it is rechargeable and long-lasting.
According to the director, the general scenario is that there may be a very simple way to stabilize nanowires of the type that were studied.
Scientists develop aluminum-sulfur battery
A team of scientists from China, Canada and the USA decided to reverse the way research is done on new batteries, generating a aluminum sulfur battery which can be recharged in a minute.
Instead of looking for the most efficient compounds for storing electricity and then trying to make the costs cheaper, the researchers looked for cheaper elements and found a big advantage.
Early prototypes endured multiple charge and discharge cycles and achieved incredibly high charging speeds, reaching full charge in less than a minute. The charging rate is highly dependent on the working temperature, with charging at 110°C being up to 25 times faster than charging at 25°C.
Electric car market drives development of new batteries
Undoubtedly, much of the research and current technologies in batteries arise to meet the demand for electric cars to achieve greater autonomy. The most anticipated technology currently is solid-state batteries, which will be able to expand vehicle autonomy by up to 80%, being able to charge almost completely in just 15 minutes.
By using a solid electrolyte in place of a common liquid solution, these batteries can store considerably more energy by weight and volume than lithium-ion batteries, yet still develop a component that is reliable and has a lifespan within the requirements. , has proven to be difficult so far.
The energy density is great and, in volumetric terms, the new prototype can store 1 kWh/l, about 4 times more compared to the Tesla Model 3 battery.
