The new battery technology is so much this zinc empty battery is very attractive

There are so many new battery technologies This zinc empty battery is very attractive

The rapid advance of mobile devices is increasingly revealing the stagnation of battery technology. In fact, the industry has always been trying to invest in the development of new high-efficiency battery technology. However, due to various factors, it has not been universalized, and many of them have remained on paper.

Stanford University has now developed an advanced zinc-air battery (Zinc-Air/Zinc Oxygen Battery). Compared to platinum and rhodium batteries, it not only has high catalytic activity and reliability, but also has a high cost. It is much cheaper, and the latter is undoubtedly the key to the popularization of new technologies.

According to Hongjie Dai, professor of chemistry at Stanford University who is the principal of the study, “The demand for high-performance, cheap, and safe batteries for portable electronic devices, electric vehicles, and other energy storage applications is increasing. Metal-air batteries provide a There is a promising low-cost solution.There is enough oxygen in the atmosphere, and the theoretical energy density of metal-air batteries is much higher than that of traditional water-electrolyte batteries and lithium-ion batteries.In this, zinc-air batteries are technically and economically Are the most reliable choices."

Zinc air cells put ordinary oxygen and zinc metal in the alkaline electrolyte, and the current generated by the oxidation reaction of zinc. After recharging, oxygen and zinc can be regenerated and reciprocated.

In fact, this kind of battery technology is not new and has already existed. It can be used as small as hearing aids and electric vehicles. However, ordinary zinc-air batteries cannot be charged, and rechargeable batteries are large fuel cells. The biggest obstacle to the manufacture of rechargeable zinc empty batteries is the lack of high enough activity and efficiency of air catalysts, and the limited life of zinc electrodes.

Hongjie Dai led his team to use common metal electrodes or nanocrystals to mix carbon nanotubes and developed a series of high-performance electrocatalysts that have better catalytic activity and reliability than other precious metals in alkaline electrolytes. many.

This battery also exhibits excellent reversibility and reliability for up to several weeks of discharge and charge cycles.

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