Will the battery be made into a flexible, easy-to-carry accessory, or even made into a fabric made of fibers? On the 2nd, the reporter learned from professors Hu Wenbin, Zhong Cheng, and Deng Yida of the Tianjin University that the group developed a woven flexible wire-like zinc-air battery through a fast, simple and continuous method; An atomic-scale mesoporous Co3O4/N-rGO (mesoporous osmium tetroxide/nitrogen-doped redox graphene) composite nanosheet with high oxygen reduction and oxygen precipitation catalytic performance was also designed and prepared, and the composite nanosheet was used as The catalyst's flexible linear zinc-air battery shows excellent performance.
Recently, the study was published in the form of a cover article in the international journals "Advanced Materials" and "Advanced Energy Materials."
"With the development of wearable electronic devices, people's demand for flexible energy storage devices continues to increase, but flexible lithium-ion batteries and super capacitors have problems such as insufficient energy density, which restricts their development and application," said Hu Wenbin.
The research group studied the use of rapid electrodeposition method to lay a cobalt hydroxide layer in situ on the carbon fiber surface of carbon cloth, combined with subsequent heat treatment process, and obtained a combination of ultra-thin mesoporous tetroxide (Co3O4) and carbon cloth with high efficiency. Oxygen reduction and oxygen precipitation capability integrated air electrode.
“Using integrated air electrodes with high-efficiency oxygen reduction and oxygen precipitation to catalyze and prepare them into flexible devices with superior performance. For example, flexible zinc-air batteries that are connected in series and in parallel can drive various electronic devices and charge Apple’s mobile phones. "Hu Wenbin said. (Reporter Ma Aiping)
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