Due to the large volume change, limited energy density, large safety problems, and other factors restricting the development of potassium ion battery in the process of charge and discharge, the research on the cathode materials of potassium ion battery is an indispensable part. In this article, we designed and predicted P2-type structures by introducing "cationic potential" that captures the key interactions of the layered materials. The precursors of the designed potassium ion battery cathode materials were obtained by co-precipitation method. Through component analysis, the experimental conditions most in line with the theoretical content of precursors were found. The cathode material was synthesized by solid phase method. This material has a highly reversible K + insertion/deinsertion effect. The initial discharge specific capacity of the battery appears at about 47 mAh/g. After 30 charge-discharge cycle tests, the discharge specific capacity of the battery drops to about 33 mAh/g, and the retention rate is about 70%.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.