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Development of a tester for evaluation of prototype thermal cells and batteries

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1 Author(s)
Guidotti, R.A. ; Sandia Nat. Labs., Albuquerque, NM, USA

A tester was developed to evaluate prototype thermal cells and batteries-especially high-voltage units-under a wide range of constant-current and constant-resistance discharge conditions. Programming of the steady-state and pulsing conditions was by software control or by hardware control via an external pulse generator. The tester was assembled from primarily Hewlett-Packard (H-P) instrumentation and was operated under H-P's Rocky Mountain Basic (RMB). Constant-current electronic loads rated up to 4 kW (400 V at up to 100 A) were successfully used with the setup. For testing under constant-resistance conditions, power metal-oxide field-effect transistors (MOSFETs) controlled by a programmable pulse generator were used to switch between steady-state and pulse loads. The pulses were digitized at up to a 50 kHz rate (20 μ s/pt) using high-speed DVMs; steady-state voltages were monitored with standard DVMs. This paper describes several of the test configurations used and discusses the limitations of each. Representative data are presented for a number of the test conditions

Published in:

Battery Conference on Applications and Advances, 1995., Proceedings of the Tenth Annual

Date of Conference:

10-13 Jan 1995