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3D Structured Anode Enabled by Porous Current Collector for Fast Charging in Solid-State Batteries

Invention Reference Number

202506025
Electric train engineer and technician with an electric train in the train repair factory as the background image. Image from Envato

This technology presents a novel anode structure that enables fast charging and improved cycling performance in solid-state batteries. By integrating a lightweight, porous current collector with a uniquely structured anode design, the invention addresses key interfacial and mechanical challenges associated with high-capacity materials. The approach enhances energy density and stability while reducing overall cell weight, paving the way for safer, higher-performance batteries suited for next-generation energy storage systems.

Description

The invention introduces a three-dimensional anode structure featuring a porous current collector that improves the performance of all-solid-state batteries. Traditional solid-state battery designs suffer from poor mechanical compatibility and limited ion transport due to expansion and contraction of high-capacity anode materials during charge cycles. This innovation employs a current collector with engineered porosity that provides mechanical buffering and improved interfacial contact. The 3D structure facilitates better accommodation of material expansion and allows efficient electron and ion transport across interfaces. The result is a lighter, higher-energy-density battery architecture with improved electrochemical and mechanical stability, supporting faster charging rates and longer operational lifespans. This approach offers a scalable, practical pathway toward next-generation solid-state battery manufacturing without compromising safety or reliability.

Benefits

  • Enables fast charging and enhanced cycle life
  • Improves interfacial stability and mechanical integrity
  • Reduces cell weight and increases energy density
  • Supports scalable manufacturing for solid-state systems

Applications and Industries

  • Electric vehicles and hybrid transportation
  • Grid-scale and renewable energy storage systems
  • Consumer electronics and portable power devices
  • Aerospace and defense energy applications

Contact

To learn more about this technology, email partnerships@ornl.gov or call 865-574-1051.

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