Will the battery be made into bendable and easy-to-carry accessories and even be made into clothes made of fibers? Will this happen? On the 2nd, the reporter learned from Professor Hu Wenbin, Professor Zhong Cheng and Professor Deng Yida of the Tianjin University that the group passed A fast, simple, continuous method to prepare a woven flexible wire-shaped zinc-air battery; In addition, an atomic-scale mesoporous Co with high efficiency oxygen reduction and oxygen precipitation catalytic performance was designed and prepared. 3O4The N/rGO (mesoporous osmium tetroxide/nitrogen doped redox graphene) composite nanosheets exhibited excellent performance in the flexible linear zinc-air battery using the composite nanosheet as a catalyst.
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 supercapacitors have problems such as insufficient energy density, restricting their development and application.' Hu Wenbin said.
The research group studied the use of rapid electrodeposition to lay a layer of cobalt hydroxide in situ on the carbon fiber carbon fiber surface. Combined with subsequent heat treatment process, ultra-thin mesoporous cobalt tetroxide (Co) was obtained. 3O4) An integrated air electrode that combines with carbon cloth and has high oxygen reduction and oxygen evolution capabilities.
'Using an integrated air electrode with high oxygen reduction and oxygen precipitation catalytic properties, made into a flexible device, superior performance. For example, flexible zinc-air battery packs connected through series and parallel connection can drive all kinds of electronic devices and to charge Apple mobile phones. ' Hu Wenbin said.
