Technology Available for Licensing

Case 12248/13090

3D Microbatteries

Keywords:

Micro-battery, energy density

Applications:

Micro-batteries could be used to power a wide variety of small system.

Problem:

Current battery has low energy density and big volume.

Technology:

This invention is founded on a micro-fabricated structure of 3D electrode array, proposing an integrally packaged, solid-state lithium rechargeable microbattery with a 3-dimensional interpenetrating-electrode internal architecture. The microbatteries will have the capability for outer package aspect ratios of less than 5:1 for maximum to minimum dimensions, active materials packing fraction of >75% in a 1mm3 volume. The proposed approach will use currently available and proven cathode and anode materials, but will allow drop-in of higher energy or higher rate active materials as they are developed in the future.

Advantages:

This invention proposes to achieve the energy densities of 350-1500Wh/L.

Inventors:

• Professor Yet-Ming Chiang(Materials Science and Engineering, MIT)
• Ryan Wartena (Materials Science and Engineering, MIT)
• Timothy Edward Chin (Materials Science and Engineering, MIT)
• Wei Lai (Materials Science and Engineering, MIT)
• Can Kerem Erdonmez (Materials Science and Engineering, MIT)

Intellectual Property:

US Patent Application 12/126841 filed on May 23, 2008

PCT Patent Application US08/006604 filed on May 23, 2008

EP Patent Application 08754689.1 filed on May 23, 2008

CN Patent Application 200880100459.1 filed on May 23, 2008

Publications:

N/A

Please contact: Christopher R. Noble MIT Technology Licensing Officer 1 Cambridge Center, Kendall Square, NE18-501 Cambridge, Massachusetts 02142-1601

Email: crn@mit.edu Tel: 617-253-6966 Fax: 617–258-6790 Website: http://tlo.mit.edu