Rechargeable Li/Li(x)CoO(2) 100 Ah/600 Ah Battery With Integral Smart Charge Control
Abstract
The Navy is seeking to develop advanced rechargeable batteries for propulsion of underwater vehicles. Emphasis is placed on achieving high energy density as opposed to cycle life. The goal of this effort was the development of a battery that could deliver twice the energy density (100 Wh/lb) of the zinc/silver oxide system presently employed by the SEAL Delivery Vehicle. The lithium/lithium cobalt oxide (Li/Li(0.5)CoO2) electrochemistry was developed at the 100 ampere-hour cell level. This cell served as the unit building block of a series/parallel-connected battery. Charge and discharge control circuitry was added to each individual cell. This made each cell of the battery protected from operator error and unbalanced charging. Results are reported on the cycling behavior of thirty, 100 ampere-hour cells along with a battery test, for demonstrating smart battery electronics control and monitoring on a six cell battery. Test data on battery response to the control monitoring system is presented along with a complete users manual for its PC based Smart Battery functionality.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1999
- Accession Number
- ADA376415
Entities
People
- C. J. Kelly
- C. W. Fleischmann
- P. H. Smith
- S. D. James