Graphene producer Zenyatta Ventures is to concentrate efforts on next-generation lithium-ion battery development using advanced nanomaterials
Zenyatta Ventures, a mineral development company based in Ontario, has said it concentrate efforts on producing next generation lithium-ion batteries based on “advanced nanomaterials.”
Graphite producer Zenyatta has already used graphene oxide (GO) combined with silicon in a new battery application being developed by a materials company in the US. Given the present limitations of the existing li-ion technology, R&D facilities across the world are looking to develop cells with higher capacity and quicker charging times to meet growing consumer demand.
Zenyatta chairman Keith Morrison stated: “Graphene is emerging as the most promising nanomaterial for enhancing the performance of products across a broad range of industry sectors. Given its incredible natural properties, it is not surprising to find graphene integrated into new LIB designs. LIB developers plan market disruption by engineering optimization of a product’s performance and cost that outperforms its internal combustion competition. The forecasted growth rates for LIB’s in the next decade are impacting critical supply chain resource values today.”
High-quality graphene can make batteries that are potentially lighter, durable, safer, have higher energy storage capacity and shorten charging times, the company says, by improving conductivity without requiring the amount or type of carbon used in conventional batteries. These new advanced batteries can be enhanced by incorporating graphene into the battery and exploiting its superior conductivity, high material strength and large surface area characteristics to achieve optimum performance.
Zenyatta’s high-purity graphite was converted to graphene oxide by Dr. Aicheng Chen, Professor at Lakehead University. That material was then sent to an American advanced materials company where it was successfully used to create a silicon-graphene composite for testing as a new anode material in a next generation lithium-ion battery. The superior dispersion qualities and electrochemical performance of the Company’s material are desirable properties that are well suited for this advanced silicon-graphene battery.
While silicon has many times the capacity of the current graphite anode, it cannot be used alone due to rapid degradation. A significant amount of research has been carried out to encapsulate silicon in a graphene oxide material to enhance the cycle life while also increasing charge capacity and durability for advanced lithium-ion batteries.