Very High Frequency Measurements of Geometric Factors in Transmission Line Lead Acid Cells

Abstract

Strip-line cells using Lead strips 1 cm wide with Sulfuric Acid electrolyte have been constructed with lengths of 10 cm, 25 cm and 100 cm with several electrode spacing to test the predictions of the theoretical models under real cell conditions. The impedance of these cells has been measured over a wide frequency range (0.1 - 10 to the 7th power Hz). New experimental techniques had to be developed for this task including the use of a new potentiostat (BC 2000) which has a full current slew rate of 4 microseconds. Since the usual current measuring resistors are too inductive for use at these extreme frequencies, currents were measured with a high speed current probe (which has a bandwidth of 50 MHz). The results show clearly the effects of the inductance of the cell. These effects are clearly visible at frequencies as low as 100 Hz. The results suggest that the use of large battery systems in the short time domain will be seriously limited by these effects. (aw)

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Document Details

Document Type
Technical Report
Publication Date
Mar 15, 1990
Accession Number
ADA219463

Entities

People

  • B. D. Cahan
  • E. B. Yeager
  • M. L. Daroux
  • R. R. Adzic

Organizations

  • Case Western Reserve University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Bandwidth
  • Capacitance
  • Cells
  • Chemistry
  • Frequency
  • Geometry
  • Impedance
  • Inductance
  • Measurement
  • Military Research
  • Oxidation
  • Photoelectrochemical Cells
  • Resistance
  • Strip Transmission Lines
  • Time Domain
  • Transmission Lines
  • Very High Frequency

Fields of Study

  • Physics

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Electronics Engineering

Technology Areas

  • Space
  • Space - Hall-Effect Thruster