NMP-Free Lithium Ion Electrodes for Battery Manufacturing – Phase III

NCMS Project #: 141027

Problem: Batteries using currently available active materials for energy storage are unlikely to meet future demands for energy density.  Ongoing research is producing higher energy density active materials however these new materials pose additional problems in stability and performance.

Benefit: Advances in battery performance can improve their utility, reduce costs, and reduce environmental burdens associated with production and disposal of batteries.  The work in this project will advance batteries designed for electric vehicles, personal and industrial use.  

Solution/Approach: Phase I focused on the use of advanced cathode binder materials that improve battery performance with reduced cost and environmental impact through the elimination of N-methyl pyrrolidine (NMP).  In Phase II, the project team has begun formulating novel binders for anodes that are designed to enhance battery performance and reduce costs.  The industry partners are validating a novel cathode coating architecture and will use the cathode coating formulations developed in Phase I to create the new cathode coating architectures. 

Phase III endeavors to meet the need of Army modernization priorities, most specifically electrification, which will require batteries designed for hybrid use applications.  Work done in Phase I and Phase II targets a 6T replacement battery and supports moving toward materials for hybrid batteries.  Phase III will develop binders for high-nickel active materials that facilitate the creation of higher-energy density batteries.  Materials designed for thermal measurement and management will be evaluated to provide enhanced performance and safety, with minimal impact to vehicle weight or battery cost. 

Impact on Warfighter:

  • Reduce costs
  • Improve capacity, capabilities and stealth
  • Increase security and safety
  • Enhance warfighter lethality

DOD Participation:

  • U.S. Army GVSC

Industry Participation:

  • PPG Industries, Inc.
  • NCMS

Benefit Area(s):

  • Cost savings
  • Positive environmental impact
  • Safety
  • Improved readiness
  • Energy efficiency
  • Lightweighting

Focus Area:

  • Energy, environmental, health, and safety