GB855935A - Improvements in or relating to safety devices for series connected hermetically sealed battery cells - Google Patents

Improvements in or relating to safety devices for series connected hermetically sealed battery cells

Info

Publication number
GB855935A
GB855935A GB40220/57A GB4022057A GB855935A GB 855935 A GB855935 A GB 855935A GB 40220/57 A GB40220/57 A GB 40220/57A GB 4022057 A GB4022057 A GB 4022057A GB 855935 A GB855935 A GB 855935A
Authority
GB
United Kingdom
Prior art keywords
cell
cells
battery
contact
hermetically sealed
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB40220/57A
Inventor
Erik Jonsson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Svenska Ackumulator Jungner AB
Original Assignee
Svenska Ackumulator Jungner AB
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 Svenska Ackumulator Jungner AB filed Critical Svenska Ackumulator Jungner AB
Priority to GB40220/57A priority Critical patent/GB855935A/en
Publication of GB855935A publication Critical patent/GB855935A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • 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
    • H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
    • H02J7/00719—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to degree of gas development in the battery
    • 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
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/04—Regulation of charging current or voltage
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H01M2200/20—Pressure-sensitive devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

855,935. Discharging batteries; protective arrangements. SVENSKA ACKUMULATOR AKTIEBOLAGET JUNGNER. Dec. 27, 1957, No. 40220/57. Class 38 (4). In order to prevent the destruction of one or more of a number of series connected battery cells by the excess gas pressure generated should the cell or cells begin charging with reversed polarity due to the cell or cells becoming fully discharged before the remainder when the battery is discharging there is. provided means to short-circuit the cell or cells when the gas pressure in the cell or cells rises above a certain limit or when the polarity reverses. An hermetically sealed cell 1 which forms part of a battery of such cells series connected, is normally charged from a source 7, 8 over a polarized relay 15, the armature 16 being unattracted during charging. When the battery is discharging the current direction through the operating winding 17 of the relay 15 is such as to cause attraction of the armature 16 so that the contact 13 moves into the vicinity of a contact 11 responsive to the gas pressure in the cell 1. Should the cell now become discharged before the remainder of the cells in the battery the cell 1 will tend to charge with reverse polarity thereby creating a large evolution of gas within the hermetically sealed casing such that when the pressure reaches a predetermined value the contact 11 will be moved into contact with the contact 13 thereby shortcircuiting the cell 1 preventing damage thereof. In another embodiment the polarized relay 15 is provided with two windings in a mutually aiding sense, one of which windings is responsive to the terminal voltage of the cell and is serially connected with a half-wave rectifier to make itsoperation current direction responsive.
GB40220/57A 1957-12-27 1957-12-27 Improvements in or relating to safety devices for series connected hermetically sealed battery cells Expired GB855935A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB40220/57A GB855935A (en) 1957-12-27 1957-12-27 Improvements in or relating to safety devices for series connected hermetically sealed battery cells

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB40220/57A GB855935A (en) 1957-12-27 1957-12-27 Improvements in or relating to safety devices for series connected hermetically sealed battery cells

Publications (1)

Publication Number Publication Date
GB855935A true GB855935A (en) 1960-12-14

Family

ID=10413811

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40220/57A Expired GB855935A (en) 1957-12-27 1957-12-27 Improvements in or relating to safety devices for series connected hermetically sealed battery cells

Country Status (1)

Country Link
GB (1) GB855935A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0013005A1 (en) * 1978-12-21 1980-07-09 The Dow Chemical Company D.C. transformers and multi-terminal D.C. power network utilizing the same
US4233554A (en) * 1979-04-05 1980-11-11 The United States Of America As Represented By The Secretary Of The Army Vent actuated shorting switch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0013005A1 (en) * 1978-12-21 1980-07-09 The Dow Chemical Company D.C. transformers and multi-terminal D.C. power network utilizing the same
US4233554A (en) * 1979-04-05 1980-11-11 The United States Of America As Represented By The Secretary Of The Army Vent actuated shorting switch

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