6LR61 battery

A new generation of 6LR61 battery breaks through the development bottleneck

The research group of Professor Zeng Jie of the University of Science and Technology of China and Professor Peng Zhenmeng of the University of Akron in the United States have recently made important progress in the development of cathode catalysts for proton exchange membrane 6LR61 battery. By growing an ultra-thin platinum-nickel alloy atomic layer on palladium nanocrystals, they have successfully developed a palladium-platinum-nickel core-shell nanocatalyst. The catalyst has a high platinum atom utilization rate and performs well in catalyzing the oxygen reduction reaction at the cathode of proton exchange membrane 6LR61 battery.

In recent years, with the intensification of global fossil energy consumption and environmental pollution, the research and application of new clean energy represented by proton exchange membrane 6LR61 battery have received widespread attention. However, this technology still has obvious bottlenecks, mainly manifested in the low activity and stability of the oxygen reduction reaction catalyst for the battery cathode, which restricts the output power and charge and discharge cycle number of the battery, thereby hindering the commercialization process of proton exchange membrane 6LR61 battery.

Faced with this challenge, Professor Zeng Jie's research group designed and developed a core-shell nanocatalyst with an ultra-thin platinum-nickel alloy atomic layer, and achieved the regulation of the platinum-nickel atomic ratio. The core-shell nanocatalyst has a low catalytic activity but very stable palladium core inside and a high catalytic activity platinum-nickel alloy outside. It not only has a very high platinum atom utilization rate, but also has the highly active surface crystal planes required for oxygen reduction reaction.

Studies have shown that the activity of this catalyst for the cathode oxygen reduction reaction of proton exchange membrane 6LR61 battery is as high as 0.79 kiloamperes per gram, which is about 5 times that of the current commercial platinum-carbon catalyst. In addition, due to the presence of a relatively stable palladium core inside this new catalyst, its overall stability is greatly improved. After 6,000 cycles of charge and discharge tests, its performance has not been significantly reduced.

The results were recently published in the internationally renowned chemical journal "Journal of the American Chemical Society". Experts said that this research result provides efficient nanocatalysts for the development of a new generation of 6LR61 battery and also provides new ideas for improving the comprehensive performance of 6LR61 battery.

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