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Original title: The discharge efficiency is still close to 100% after 500 cycles.
Original source: Science and Technology Daily
Science and Technology Daily (Reporter Zhao Hanbin) The reporter learned from Yunnan University on May 23 that the team of Professor Guo Hong from the School of Materials and Energy of the school has made breakthroughs in covalent organic framework new energy storage materials.
At present, the development of high-performance and sustainable green electrode materials is crucial to the development of lithium-ion batteries.
Compared with traditional inorganic compounds, covalent organic framework is a kind of porous crystalline framework material with designable component structure and strong stability.
In response to these problems, the research team proposed for the first time an atomic layer covalent organic framework modified by the dual effective redox sites of carbonyl and cyano groups, and it was successfully applied to lithium-ion battery cathode materials.
The research team peeled off the cluster-shaped covalent organic framework material with optical conductivity by mechanical peeling method to obtain the atomic layer covalent organic framework material.
