The University's Scientific Research Team Has 'shrunk' Lithium-ion Batteries

- Feb 01, 2018-

How can electronic consumer goods such as mobile phones and laptops be lighter and thinner, and how electric cars have a longer range of power in limited space……With the increasing demand for energy storage, the demand for secondary battery performance is higher and higher.Nanotechnology can make batteries "lighter" and "faster", but because of the low density of nanomaterials, "smaller" is a challenge for researchers in energy storage.Winners of national outstanding youth science fund, tianjin university professor Yang qh team "s template method" was proposed, based on high energy density lithium ion battery cathode material volume design, finishing for the active particles graphene package "tailored", make the lithium ion battery becomes "smaller" possible.The results were published online Jan. 26 in the journal Nature Communications.

Carbon cage structure of carbon nano material building is considered to be solve tin, silicon and other non carbon negative electrode materials intercalated-li huge volume expansion problem of the main means, but in the process of building a carbon buffer network, often introduce too much room, limits the performance of lithium ion battery cathode volume.Therefore, the precise customization of carbon cage structure is not only an important academic problem, but also the only way for the industrialization of new high performance anode materials.

The carbon cage based on graphene assembly structure design ideas of "tailored" can expand to generalize the next generation of high-energy lithium ion battery and lithium sulfur batteries, lithium ion battery electrode materials such as air building strategy.