Nuvvon has developed novel solid polymer electrolytes and truly solid-state batteries. This is the beginning of a roadmap to remove resource constrained minerals from battery cells. Starting with highly stable solid polymer electrolytes, the near-term deliverable is truly solid-state cells, then we open the door to lower cost and more abundant cathode and anode materials. We will define new limits as costs are reduced and energy density is increased.
In 2017, Manveer and Karmjit Sidhu started Sidhu Laboratories with the objective of creating a truly solid-state battery based on electroactive polymers. In early 2022, Sidhu Laboratories combined with newly formed Nuvvon to commercialize the technology first developed at Sidhu Laboratories.
Nuvvon developed a family of highly stable solid polymer electrolytes that are used both as the active separator and in the cathode. They are ionically conductive at room temperature and atmospheric pressure without liquids or gels. They are compatible with a lithium metal anode and high voltage cathodes. They have high mechanical stability and can operate at high temperatures. And they can be manufactured using standard Li-ion processes. We don’t know of any other company that can make this set of claims.
Yes. Our cells have passed independent abuse testing by UL. This includes, overcharge, over discharge, short circuit and the thermal runaway test which puts a propane flame on the naked cell for 20 minutes. The batch of test cells only exhibited benign failure modes. As we develop and improve cell performance, we will repeat independent abuse tests.
Generally, yes. However, Nuvvon’s novel polymer electrolytes have high ionic conductivities exceeding 1*10-3 S/cm at room temperature while maintaining excellent mechanical strength.
Nuvvon successfully developed solid polymer electrolytic membranes capable of an electrochemical stability window up to 5.5V. These membranes have demonstrated stability with high-voltage materials, such as LNMO.
Yes, in the case of oxide or sulfide solid-state electrolytes. However, Nuvvon’s solid polymer electrolytes exhibit extremely low electrode-electrolyte interfacial impedances. Consequently, our solid-state cells can be charged and discharged without the need for pressure normalized to the surface of the cell. This has been independently verified in single-layer and multi-layer formats.
Not all polymer electrolytes are lithium stable. But Nuvvon developed a deep understanding of the components of our solid polymer electrolytes versus dendrite formation in lithium-metal anodes. Through rigorous optimization, our polymer electrolytes are already capable of successfully cycling with lithium-metal anodes for hundreds of cycles.
Some claimed solid electrolytes still require liquids to operate. However, Nuvvon has developed completely solid battery cells without any conventional liquid electrolytes or polyionic/ionic liquids in the cathode, interfaces, or within the polymer electrolyte separator. Furthermore, we do not use inactive separator materials (e.g. PE, PP, PAN).
Yes. Nuvvon produced and tested more than 1,000 cells over the last 4-years. Nuvvon also had LFP pouch cells independently produced on standard production equipment (see below). Nuvvon constructed LNMO pouch cells and NMC coin cells at lab scale and tested them at room temperature and atmospheric pressure.
In December 2021 Nuvvon successfully commissioned the fabrication of solid-state battery cells using an independent standard Li-ion process. This involved mixing and coating using standard equipment then assembly on a standard line with roll-to-roll capabilities. The process was standard but simplified because electrolyte injection, degassing and aging were not required.
The polymer electrolyte was pre-mixed into an LFP cathode slurry and layered onto the aluminum current collector at room temperature and dried. Then the polymer electrolyte was layered onto the cathode, also at room temperature, to form the active separator layer. The cathode-with-separator was assembled with lithium coated copper and connector tabs into a pouch to form the cell. This was to independently demonstrate a standard, scalable and cost-effective method to manufacture our solid-state cells. Both single-and-multilayer lithium-metal pouch cells were independently fabricated then tested at atmospheric pressure and room temperature.
In the coming months, Nuvvon will commission the manufacture of LNMO and NMC solid-state pouch cells on an independent production line.
Yes, our validated third-party performance data is available for review under NDA
First, we will take battery production to the commercial prototype stage on a standard MWh line. Our giga-scale business model is to license novel polymer formulas to the largest polymer manufacturers and the electrolyte formulas to the largest electrode and cell manufacturers globally.
We also believe that there is a market for highly specialized and custom-made batteries used in military and aviation specialized markets. We will co-develop customized battery production to the commercial prototype stage and then, similarly, consider licensing opportunities.
We have filed patent applications covering our key technologies.