Methods of Improving Cathode Stability in High Voltage Energy Storage Devices

The Need

As the world rapidly transitions to electric mobility and seeks to combat climate change, the transportation sector faces a pressing challenge. Electric vehicles (EVs) hold the key to a sustainable future, but their high cost, primarily driven by expensive lithium-ion batteries, hinders mass-market adoption. Automakers urgently require breakthroughs in battery technology to significantly reduce costs, increase energy density, and improve cycle life, paving the way for profitable mass-market electric vehicles. To achieve this, a new generation of cathode chemistry is essential, offering higher specific energy, extended life, and reduced reliance on critical materials like cobalt.

The Technology

This technology is a cutting-edge approach of cathode stabilization for high-performance and next-generation cathode materials. Leveraging state-of-the-art solid electric conductors, the technology effectively passivates the cathode surface, extending the lifespan of cathode materials like nickel-rich LiNi1-xMn0.5xCo0.5xO2 (NMC with x ≤ 0.2) and high-voltage LiNi0.5-xMn1.5-yMx+yO4 (M = Ti, V, Cr, Mg, Al, Co, Fe, Cu, Zn) spinel oxide. By addressing the unwanted cathode/electrolyte reaction, it ensures enhanced performance and reliability for electric vehicles.

Commercial Applications

  • EV Batteries: The technology's application in next-gen cathode materials opens up new possibilities for electric vehicle batteries with higher specific energy, improved cycle life, and lower cobalt content, leading to more affordable and efficient EVs.
  • Consumer Electronics: Beyond the automotive industry, the technology can revolutionize the battery landscape for portable electronics, enabling longer-lasting and more energy-efficient devices like smartphones and laptops.
  • Renewable Energy Storage: Advancements extend to energy storage solutions, supporting the integration of renewable energy sources by improving the efficiency and reliability of battery systems in grid applications.


  • Cost Reduction: By stabilizing cathode materials, the technology paves the way for cost-effective electric vehicle batteries, significantly reducing the price.
  • Enhanced Performance: Solid electric conductors boost energy density and cycle life, resulting in batteries that deliver superior performance and increased driving range for electric vehicles.
  • Reduced Reliance on Critical Materials: With a decreased reliance on materials like cobalt, the technology mitigates supply risks and ensures a more sustainable battery ecosystem.

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