Solve lithium-ion battery pain points with tape: reducing dendritic extension battery life

ليکڪ: آئي فلو پاور - Nešiojamų elektrinių tiekėjas

The scientific research team of Les University is based on tape, combined with some advanced laser technology, and has developed a new type of electrode material. This material can overcome the long-term problems of the current lithium-ion battery and expect to increase the performance of the battery. Lithium metal battery refers to a battery that is conventionally used as a graphite that is used as an anode (two electrodes) to pure metal lithium battery.

Since this material has a very high energy density, metal lithium can make the battery's charging speed is greatly accelerated, and the capacity can reach 10 times. However, there are still some shortcomings in lithium-ion batteries, which is more troublesome to "dendrites". During the charging process, these dendrites are formed on the surface of the anode and may result in short circuit, failure or fire, so a large number of battery studies are concentrated.

The scientific research team from Les University has a new breakthrough in this field, first is a tape. The team passes the tape to the copper current collector constituting the lithium anode and treated it with a laser to heat it to the extreme temperature of 2300 Kelvin (3680 ¡ã F or 2026 ¡ã C), thereby imparting some very useful New feature. This process turns the tape into a porous coating, which is important from silicon, oxygen, and a small amount of magical material graphene.

Preliminary experiments on the film show that it can be used as a protective layer of current collector assemblies, which can absorb and release metal lithium, and will not allow harmful dendrites. In its laser-induced silicon oxide protection coating, the Less University team may have found a way to take advantage of these positive factors, not newly increased lithium burden. Its experiments show that the battery with its new coating exhibits three times the life of other "zero excess" metal lithium-ion batteries, and reserves 70% capacity in 60 charge cycles.

The team introduced that this technology is fast and safe, does not involve solvent, and can be carried out at room temperature. Therefore, it is highly hoped, thinks it has the potential to expand scale.