The Ohio State University Corporate Engagement Office

Back to All Technologies

Methods of Improving Cathode Stability in High Voltage Energy Storage Devices

Engineering & Physical Sciences
Energy, Earth, & Environmental
Battery & Fuel Cells
College
College of Engineering (COE)
Researchers
Kim, Jung Hyun
Jiao, Xinwei "Jocelyn"
Yu, Chanyeop
Licensing Manager
Randhawa, Davinder
614-247-7709
randhawa.40@osu.edu
External Links

T2021-119

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.

Benefits/Advantages

  • 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.