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Nanotube composite anode materials improve lithium-ion battery performance (ANL-09-034)

Argonne National Laboratory

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Technology Marketing Summary

Rechargeable lithium-ion batteries are a critical technology for many applications, including consumer electronics and electric vehicles. As the demand for hybrid and electric vehicles continues to grow, so does the demand for lithium-ion batteries that are safer, more powerful, and less expensive. Scientists at Argonne National Laboratory are leading efforts to revolutionize battery technology with the design and development of new battery materials for electrodes, electrolytes, and interfaces that will increase the specific energy of advanced lithium-ion batteries, while simultaneously providing enhanced stability at a lower cost. To help improve the energy capacity of lithium-ion batteries, Argonne researchers have developed a new, promising nanotube composite anode material that offers an improvement over existing anode technology.

Description

Conventional lithium-ion battery configurations contain graphite anodes that exhibit low energy capacity and pose safety issues — as a result, anode materials that have higher specific capacity and are more stable are needed. Argonne researchers have developed an innovative anode material comprised of a composite structure of a lithium-alloying material coated on the wall of an aligned nanotubular base material. These nanotube composite materials provide increased structural stability during lithiation and delithiation. The Argonne-developed materials also offer a significant increase in specific capacity and improvements in long-term stability.

Benefits
  • Increases capacity
  • Improves safety
  • Increases long-term stability and reliability
Applications and Industries
  • Transportation applications, such as electric and plug-in hybrid electric vehicles
  • Portable electronic devices, such as cell phones and laptop computers
  • Medical devices
  • Space, aeronautical, and defense-related devices
Patents and Patent Applications
ID Number
Title and Abstract
Primary Lab
Date
Application 20110104551
Application
20110104551
NANOTUBE COMPOSITE ANODE MATERIALS SUITABLE FOR LITHIUM ION BATTERY APPLICATIONS
The present invention provides a composite material suitable for use in an anode for a lithium ion battery, the composite material comprising a layer of a lithium-alloying material on the walls of an aligned nanotubular base material. Preferably, the lithium-alloying material comprises a material selected from the group consisting of Si, Sn, Pb, Al, Au, Pt, Zn, Cd, Ag, Mg, and a combination of two or more of the foregoing.
11/03/2010
Filed
Technology Status
Technology IDDevelopment StageAvailabilityPublishedLast Updated
ANL IN-09-034DevelopmentAvailable02/21/201202/07/2012

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To: Elizabeth Jordan<partners@anl.gov>