WO1996029773A3 - Method and apparatus for detection and control of thermal runaway in a battery under charge - Google Patents

Method and apparatus for detection and control of thermal runaway in a battery under charge Download PDF

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Publication number
WO1996029773A3
WO1996029773A3 PCT/US1996/003473 US9603473W WO9629773A3 WO 1996029773 A3 WO1996029773 A3 WO 1996029773A3 US 9603473 W US9603473 W US 9603473W WO 9629773 A3 WO9629773 A3 WO 9629773A3
Authority
WO
WIPO (PCT)
Prior art keywords
battery
thermal runaway
detection
under charge
control
Prior art date
Application number
PCT/US1996/003473
Other languages
French (fr)
Other versions
WO1996029773A2 (en
Inventor
Stephen J Mcshane
Mark Hlavac
Kevin Bertness
Original Assignee
Midtronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Midtronics Inc filed Critical Midtronics Inc
Priority to AU53634/96A priority Critical patent/AU5363496A/en
Publication of WO1996029773A2 publication Critical patent/WO1996029773A2/en
Publication of WO1996029773A3 publication Critical patent/WO1996029773A3/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00711—Regulation of charging or discharging current or voltage with introduction of pulses during the charging process

Abstract

A thermal runaway detection apparatus (16) is provided for use during charging of a battery (12). The thermal runaway detection apparatus includes circuitry for determining internal resistance (impedance) or conductance (admittance) of the battery (12) under charge. Detection circuitry detects an increase in internal battery conductance or a decrease in internal battery resistance and provides an output. The output is indicative of a thermal runaway condition in the battery. The circuitry can be used to provide feedback which controls charging of the battery (12).
PCT/US1996/003473 1995-03-17 1996-03-15 Method and apparatus for detection and control of thermal runaway in a battery under charge WO1996029773A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU53634/96A AU5363496A (en) 1995-03-17 1996-03-15 Method and apparatus for detection and control of thermal runaway in a battery under charge

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/406,210 1995-03-17
US08/406,210 US5574355A (en) 1995-03-17 1995-03-17 Method and apparatus for detection and control of thermal runaway in a battery under charge

Publications (2)

Publication Number Publication Date
WO1996029773A2 WO1996029773A2 (en) 1996-09-26
WO1996029773A3 true WO1996029773A3 (en) 1996-12-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/003473 WO1996029773A2 (en) 1995-03-17 1996-03-15 Method and apparatus for detection and control of thermal runaway in a battery under charge

Country Status (3)

Country Link
US (1) US5574355A (en)
AU (1) AU5363496A (en)
WO (1) WO1996029773A2 (en)

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Publication number Publication date
AU5363496A (en) 1996-10-08
US5574355A (en) 1996-11-12
WO1996029773A2 (en) 1996-09-26

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