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Title: Method of monitoring electrochemical cells

Abstract

This patent describes the method of monitoring on a continuous basis the physical and electrical condition of electrochemical cells of a battery so that corrective action can be taken before explosion and/or venting occurs, and wherein each of the electrochemical cells has an electrically conductive shell. The method includes the steps of: (A) coating the electrically conductive shell of each cell of the battery with a thin non electrically conductive layer, (B) applying a sensor stripe over the non electrically conductive layer so that the sensor does not make electrical contact to the shell of the cell, wherein the sensor stripe is comprised of multiple sensor elements including a conductive thermally sensitive material and a conductive stress/strain material, and wherein the materials are connected together to form a continuous series electrical path using bonding pads of a metallic material to interface the junctions of the conductive thermally sensitive material and the sensor leads. (C) connecting leads to the sensor and then coating the sensor with a protective layer, and (D) connecting the sensor leads of individual cells of the battery into an electrical series circuit, the remaining leads of the series sensor circuit being connected to an alarm/control network thatmore » monitors the conductivity of the series electrical path.« less

Inventors:
;
Publication Date:
OSTI Identifier:
5153311
Patent Number(s):
US 4727006
Assignee:
Secretary of the Army, Washington, DC
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 12 Feb 1986
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; ELECTRIC BATTERIES; ELECTRIC MEASURING INSTRUMENTS; MONITORING; ELECTRIC CONDUCTIVITY; ELECTRIC CONDUCTORS; ELECTRIC CONTACTS; FABRICATION; MONITORS; OPERATION; PROTECTIVE COATINGS; COATINGS; ELECTRICAL EQUIPMENT; ELECTRICAL PROPERTIES; ELECTROCHEMICAL CELLS; EQUIPMENT; MEASURING INSTRUMENTS; PHYSICAL PROPERTIES; 250903* - Energy Storage- Batteries- Materials, Components, & Auxiliaries

Citation Formats

Malinowski, G J, and Chaskin, D M. Method of monitoring electrochemical cells. United States: N. p., 1988. Web.
Malinowski, G J, & Chaskin, D M. Method of monitoring electrochemical cells. United States.
Malinowski, G J, and Chaskin, D M. Tue . "Method of monitoring electrochemical cells". United States.
@article{osti_5153311,
title = {Method of monitoring electrochemical cells},
author = {Malinowski, G J and Chaskin, D M},
abstractNote = {This patent describes the method of monitoring on a continuous basis the physical and electrical condition of electrochemical cells of a battery so that corrective action can be taken before explosion and/or venting occurs, and wherein each of the electrochemical cells has an electrically conductive shell. The method includes the steps of: (A) coating the electrically conductive shell of each cell of the battery with a thin non electrically conductive layer, (B) applying a sensor stripe over the non electrically conductive layer so that the sensor does not make electrical contact to the shell of the cell, wherein the sensor stripe is comprised of multiple sensor elements including a conductive thermally sensitive material and a conductive stress/strain material, and wherein the materials are connected together to form a continuous series electrical path using bonding pads of a metallic material to interface the junctions of the conductive thermally sensitive material and the sensor leads. (C) connecting leads to the sensor and then coating the sensor with a protective layer, and (D) connecting the sensor leads of individual cells of the battery into an electrical series circuit, the remaining leads of the series sensor circuit being connected to an alarm/control network that monitors the conductivity of the series electrical path.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {2}
}