High-Density Lithium with Bi-Layered Graphene to Increase Battery...

High-Density Lithium with Bi-Layered Graphene to Increase Battery Capacity

By Energy CIO Insights | Monday, January 28, 2019

Mirroring the growth of batteries in various fields, the worldwide market of lithium-ion poises real growth and involvement of new materials. Due to the new materials in lithium-ion technologies, the lithium-ion batteries have become cheaper than the batteries used in traditional gas-powered vehicles. The significant rise in the market growth is due to the reduction of cobalt proportionally inside the cathode.

Companies like Elcora have been targeted to reduce the cost of lithium-ion batteries targeting between $80/kWh and $100/kWh. Elcora  stays unique in studying the graphene-infused Li-ion battery. The company works with both graphene and Li-ion battery. Graphene, being a metastable material, has a low shelf life. Compared to other new materials, graphene tends to agglomerate and self assemble to graphite.

To increase the battery capacity, the density of lithium has to be improved. As both lithium and carbon are lightweight atoms, the electron microscope results are identical. Researchers find it difficult to enhance their research in increasing the battery capacity. By using a transmission electron microscope, researchers have started to examine the possibilities of lithium atom to form lithium carbide and to increase battery capacity. During the research, the electrons pass through a ribbon of double layered graphene.

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Unexpectedly, the lithium forms multiple layers of crystalline lithium. The crystalline lithium passes through the graphene rapidly, thereby increasing voltage rates. 

According to the results, the high-density lithium was generated between the two graphene sheets. Irrespective of the present search results, researchers think about the ironic effect of the lithium ion during the charging cycle. As graphene does not last longer, researchers are not sure about the lithium and graphene combination. Researchers consider it as an example of the experimental necessity that brings unexpected results with a new set of observations to learn.

Recently, researchers at the University of Vienna and other international researchers have developed a new nanostructured anode for lithium batteries to increase the capacity and life cycle. In order to use the batteries in large vehicles, the researchers have combined mesoporous mixed metal oxide with graphene.

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