Making a li-ion battery has 3 times the current time

Until now, the creation of a small, high-performance, low-cost, and low-cost battery generation has always been a target of research for scientists around the world. And recently, researchers from Stanford University have successfully built a new generation of li-ion batteries with a usage time three times higher than current technology. This is a great progress in battery manufacturing techniques, not only to improve the performance of electronic devices such as smartphones, tablets, . but also can be applied for generations. electric cars in the near future.

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In theory, a battery system consists of three main components: anode (cathode), cathode (cathode) and electrolyte. For current generation of li-ion batteries, if pure anode is made of lithium, it will greatly increase the usage time. The biggest problem, however, is that lithium can react with electrolytes, heat up the battery or even explode. Therefore, most of the current generation of batteries use graphite or silicon as an anode.

And finally, Stanford researchers have found a way to overcome the drawback by " lithium " package in a special protective shell called "honeycomb carbon nano wall" to prevent anode reaction. Lithium and electrolyte cause instability during operation of the battery system. At the same time, the honeycomb surface design also helps to increase the charge density on the anode surface much higher than the current design. According to the research team, this allows to increase the performance of li-battery. ions up to 99% and can be fully commercialized on a large scale.

According to engineer Yi Cui, the lead researcher said: "Of all the materials for making anode, lithium is the perfect choice and can be called the Holy Grail in battery making techniques. It is possible to manufacture lightweight, small-sized batteries that still ensure extremely high duration, performance and stability ". In a validated test, the battery sample with lithium anode can provide up to 3 times the useful life of the battery.

According to the team's estimate, a $ 25,000 lithium anode battery system will provide enough energy for an electric vehicle to operate continuously during the journey of nearly 500km after a full charge. On a smaller scale, if the battery generation is equipped for mobile devices, it will double the life time even by 3 times compared to current battery models of the same size.

According to the plan, the research team will continue to improve the above battery production techniques with the goal of minimizing the cost of manufacturing, increasing the efficiency even further and will be ready for commercialization in the near future. . This is really a significant step forward to solve the problem inherent on today's electronic devices - battery life issue.