SBIR-STTR Award

State of Battery Health Test Set, Employing Time Domain Spectroscopic Techniques
Award last edited on: 3/28/02

Sponsored Program
SBIR
Awarding Agency
DOD : SOCOM
Total Award Amount
$99,987
Award Phase
1
Solicitation Topic Code
SOCOM96-001
Principal Investigator
William H Laletin

Company Information

TDS Technologies Inc (AKA: Texas Gulf Systems, Inc.)

P.O. Box 1939
Slidell, LA 70459
   (504) 645-8800
   N/A
   N/A
Location: Single
Congr. District: 01
County: St. Tammany Parish

Phase I

Contract Number: USZA22-97-P-0009
Start Date: 12/20/96    Completed: 6/20/97
Phase I year
1997
Phase I Amount
$99,987
Time Domain Spectroscopy (TDS) is a precision metrology technique which allows the condition of an electrochemical cell or battery to be quantitatively evaluated in real time, obviating the protracted data collection times associated with the more familiar Frequency Response Analysis Method. In the FRA method, the cell's responses to a sequence of sinusoidal excitations are used to estimate the parameter values of an electric circuit model, which can then be used to simulate the behavior of the cell. In contract, a well defined non-sinusoidal excitation is used for TDS measurement, and the resulting response is evaluated using pattern recognition algorithms to immediately assess the condition and capacity of the cell under test. The TDS method has been demonstrated to be effective for determining the condition and capacity of cells of several secondary battery chemistries, including lead-acid, nickel-cadmium, and most recently, lithium-ion types. Preliminary results also indicate that the 'state-of-life' of these cell may be estimated. TDS Technologies, Inc., proposes to extend this technique for use with a variety of primary and secondary cell types, including lithium sulfer dioxide units and others.

Keywords:
Time Domain Spectroscopy Non-Invasive Measurement Battery Test Equipment Primary Battery Testing

Phase II

Contract Number: ----------
Start Date: 00/00/00    Completed: 00/00/00
Phase II year
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Phase II Amount
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