Synthesis And Characterization Of Li-rich Triplets Compound Cathodes For Lithium Ion Batteries

In the past several ten years,the studies of sulfide material for lithium battery caught more and more researchers'attention.And there are fruitful achievements in these researches. The existing researches focused mainly on what kind of cathode material and what kind of preparation for cathode material.They intensified people's understanding of sulfide material in theory and presented some new thoughts and directions. The industrial workers are also provided for increasing battery capacity, improving battery performance, and optimizing the process with guidance and new ideas.The previous studies pointed out that there are a variety of materials can be used as cathode materials for lithium batteries, this article make preliminary study on the ASP cathode material.In this paper,we have done a large number of experiments, the main research results obtained are as follows:After thorough literature review,I designed the Preliminary framework of the study and make experimental program of sol-gel and coprecipitation.Then I also reparated ASP cathode materials based on experimental program, assembled into batteries,and make initial characterization of materials by battery capacity.The paper also design orthogonal experiment for coprecipitation, trying to find the optimal conditions for coprecipitation.According to the experimental results of the analysis, this paper also take preliminary forecast for the further research.The conclusions of this study are as follows: in this experiment we successfully prepared ASP cathode material; the capacity of battery is about 240-260mAh/g;The material have higher charge-discharge efficiency and good stability.In the orthogonal experiment, the titration time have the greatest impact for battery capacity; The level of the factors are selected as follows: calcination temperature for 950℃,calcination time for 7h, pH =8.0, reaction time for 3h, aging time for18h.