High Current Experimental and Modeling Targeting Large Scale, Safe, Reliable and Cost-Effective Lithium Ion Battery Systems
Abstract
Project Summary/Abstract (Approved for Public Release)Lithium ion batteries are well suited for a wide range of applications Because of their high specific energy and high energy density. Recently lithium ion cells which also have high specific power and high power density have been developed. Some types of lithium ion cells especially lithium iron phosphate and lithium titanate can provide high service life of thousands of cycles.The goal of the proposed research is to develop an experimental and modeling program with emphasis on developing electrical equivalent circuit models to support the study of complex and interactive effects of combined mechanical and electrical loading on safety and integrity of lithium-ion cells, modules, and battery packs. In addition, cell comparison methods will be developed to help the Navy select cells for various applications. A cell test procedure including on the order of 100 cycles has been developed to characterize a cell and develop a moderate fidelity two capacitor equivalent RC circuit model. This procedure will be used to evaluate a number of candidate cells for use by the Navy in pulsed power and reserve power applications. In addition, the MIT team will work in coordination with colleagues at Temple University who are modeling and evaluating the mechanical behavior of lithium ion cells and stressing cells mechanically (~indenting~). The MIT team will run electrical evaluation of indented and undamaged cells at up to maximum operating conditions and exceeding some specified conditions to explore the operating envelope and to develop methods of possibly detecting damaged cells.The end result of this work will be to enable the US Navy and other military organizations to select components and to design energy storage systems for pulsed power and reserve applications.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- May 23, 2019
- Source ID
- N000141912359
Entities
People
- James Kirtley
Organizations
- Massachusetts Institute of Technology
- Office of Naval Research
- United States Navy