Application areas:

The performance of the graphene-based power lithium battery developed has reached international leadership, and the application of efficient graphene-based power lithium batteries in new energy vehicles, drones, power tools, etc. has been realized through the transfer of industrial technology.

Technical characteristics:

The establishment of a large-scale dispersion preparation process for graphene conductive paste solves the problems of difficulty in processing and dispersion of graphene in the preparation of lithium battery paste. By introducing graphene materials in three aspects: cathode materials, conductive agents and current collectors, the performance of graphene power batteries is systematically improved. By updating and supplementing key process equipment and process control equipment, the newly built production line will be more advanced and reasonable in terms of production process technology, which will improve the engineering capabilities of independently innovative products, and will also create advantages for market development.

Performance indicators:

The product has been verified by pilot test technology. Among them, the graphene-based lithium iron phosphate power battery has a rapid charge of 90% capacity in 6 minutes, and a capacity retention rate of more than 80% for 3500 cycles at a 5C rate. The performance is ahead of similar types of lithium iron phosphate battery products at home and abroad; Energy-type graphene-based ternary power battery, with an energy density increased to 260Wh/kg and a capacity of 80% for 1000 cycles at 0.5C, ranks at the advanced level in the world.

Current status:

Graphene-based power lithium batteries have passed the scale-up verification and safety test in the pilot stage. The battery batch has good stability and meets the technical conditions for transformation into the industry.