Chinese professor invented phosphorus nano-battery: allows mobile phone life increased by 7 times
Today, battery life has become the largest short-circuit smart phones, and scientists from all over the world are constantly trying to solve this problem. Recently, the team led by Duan Xingyu, a professor of chemical engineering at Tsinghua University in Taiwan, announced that it has successfully developed a new type of battery based on "phosphorus", which has greatly enhanced the energy density. According to reports, this "phosphorus battery" made of red phosphorus doped with iodine nanoparticles made of only 1/6 the weight of ordinary batteries, but the energy density has increased by 7 times!
The research team said that at present most of the digital products are using lithium batteries, but the negative electrode material used graphite battery capacity has reached its limit, many scientists began to try to use higher storage phosphorus to replace, but because of non-conductive, charging Easily after expansion and other reasons can not break the line.
However, Duan Xingyu team spent more than one year, invented the solution synthesis method, the use of phosphorus triiodide (PI3) as raw material, at room temperature for 5 minutes can synthesize iodine-doped red phosphorus nanoparticles, the conductivity increased to red Phosphorus 100 billion times, but after hundreds of times the charge and discharge is still stable and not broken.
At the same time, this phosphor battery also takes into account the characteristics of lightweight, the current weight of graphite used in iPhone batteries is about 6 grams, while the same capacity of the phosphor battery is less than 1 gram.
Currently, Duan Xingyu team's research findings have been published in the United States authoritative chemical journal "C & EN news", which not only allows longer phone life, but also for micro-smart wear or drones.
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