Provide conduction of electrons from the positive and negative terminals and connect with the external circuits of the battery.
What is a current collector?
Current Collectors are one of the most important components in a battery because these components are responsible to allow the flow of electrons between the negative and the positive terminals of the battery (electrodes) which directly influence the charge duration and the useful life of the cell.
Long processability time and expensive manufacturing process
High degradation and severe oxidation issues
High contact resistance and poor addition
A NEW CURRENT COLLECTOR TECHNOLOGY
Dispenses of the use of toxic and polluting raw materials or thermal drying processes
Our proposal is to do it better….
GNN main goals for this new current collector technology involves the use of natural binders and nanomaterials to increase the surface area, reduce the contact resistance, improve the adherence and at the same time develop a more efficient and low-cost manufacturing process in order to make the battery industry more competitive and sustainable for applications like electric vehicles, mobile devices and energy storage systems of high electrical performance.
How we achieved that….
Our technology involves the use of carbon nanomaterials for the fabrication of the coating slurry that is apply by a revolutionary and fast deposition process that takes only 15 seconds and that is not dependent on toxic and pollutant raw materials. GNN chemistry and manufacturing process allows to have more control of the coating thickness, adherence quality and contact resistance of the slurry on the metal foil which is directly linked to the current collector properties.
NEW GENERATION OF CURRENT COLLECTOR
Picture of GNN current collector technology in our research lab
GNN Current Collector features
High surface area that is translated in high-capacity current collectors
Protects the metal foils from corrosion
Excellent thickness coating control
Made with eco-friendly raw material
Excellent adherence (+3X)
Outstanding electrochemical stability and performance (+4X)
High speed coating deposition (15 s)
Easily scalable from laboratory to massive production
Fast drying process with low-cost technology