GB1423884A - Method of indicating the state of charge of electric acuumulators - Google Patents

Method of indicating the state of charge of electric acuumulators

Info

Publication number
GB1423884A
GB1423884A GB5151573A GB5151573A GB1423884A GB 1423884 A GB1423884 A GB 1423884A GB 5151573 A GB5151573 A GB 5151573A GB 5151573 A GB5151573 A GB 5151573A GB 1423884 A GB1423884 A GB 1423884A
Authority
GB
United Kingdom
Prior art keywords
charge
state
vapour
electrolyte
temperature
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
GB5151573A
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.)
VARTA Batterie AG
Original Assignee
VARTA Batterie AG
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 VARTA Batterie AG filed Critical VARTA Batterie AG
Publication of GB1423884A publication Critical patent/GB1423884A/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
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/484—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring electrolyte level, electrolyte density or electrolyte conductivity
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
    • 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

1423884 Measuring state of charge of batteries VARTA BATTERIE AG 6 Nov 1973 [6 Nov 1972] 51515/73 Heading H1B The state of charge is measured by determining the water vapour partial pressure in the gas space above the electrolyte space in the battery. The measuring member may be an hydrometer, the water vapour partial pressure being proportional to the electrolyte concentration and hence the charge state. Since the vapour pressure varies with temperature, the temperature is also measured and a correction applied to the vapour pressure value. In another method, the member comprises an ionexchange membrane which swells in correspondence with the concentration of the electrolyte vapour in the gas space. This latter method does not require temperature measurement.
GB5151573A 1972-11-06 1973-11-06 Method of indicating the state of charge of electric acuumulators Expired GB1423884A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2254207A DE2254207C2 (en) 1972-11-06 1972-11-06 Method for displaying the state of charge of electrical accumulators

Publications (1)

Publication Number Publication Date
GB1423884A true GB1423884A (en) 1976-02-04

Family

ID=5860918

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5151573A Expired GB1423884A (en) 1972-11-06 1973-11-06 Method of indicating the state of charge of electric acuumulators

Country Status (10)

Country Link
AT (1) AT321393B (en)
BE (1) BE806686A (en)
CH (1) CH560976A5 (en)
DE (1) DE2254207C2 (en)
DK (1) DK131445B (en)
FR (1) FR2205752B1 (en)
GB (1) GB1423884A (en)
IT (1) IT1006615B (en)
NL (1) NL7314615A (en)
SE (1) SE385063B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005038433A1 (en) * 2003-10-15 2005-04-28 The Commonwealth Of Australia, C/O Minister For Defence State-of-charge indicator and method therefor a flooded cell battery
AU2004281292B2 (en) * 2003-10-15 2011-08-04 The Commonwealth Of Australia, C/O Minister For Defence State-of-charge indicator and method therefor a flooded cell battery

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01250747A (en) * 1988-03-31 1989-10-05 Japan Gore Tex Inc Measuring sensor of concentration of solute in water solution
US5288563A (en) * 1991-02-18 1994-02-22 Japan Storage Battery Co., Ltd. Hydrogen ion concentration sensor and lead-acid battery having the sensor
DE102009034854B4 (en) * 2009-07-27 2015-10-15 Continental Automotive Gmbh Arrangement and use of an arrangement for carrying out a method for determining a state of charge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005038433A1 (en) * 2003-10-15 2005-04-28 The Commonwealth Of Australia, C/O Minister For Defence State-of-charge indicator and method therefor a flooded cell battery
AU2004281292B2 (en) * 2003-10-15 2011-08-04 The Commonwealth Of Australia, C/O Minister For Defence State-of-charge indicator and method therefor a flooded cell battery

Also Published As

Publication number Publication date
CH560976A5 (en) 1975-04-15
AT321393B (en) 1975-03-25
DE2254207C2 (en) 1974-06-12
DE2254207A1 (en) 1973-11-08
NL7314615A (en) 1974-05-08
DE2254207B1 (en) 1973-11-08
DK131445C (en) 1975-12-01
BE806686A (en) 1974-02-15
FR2205752A1 (en) 1974-05-31
DK131445B (en) 1975-07-14
IT1006615B (en) 1976-10-20
FR2205752B1 (en) 1976-06-18
SE385063B (en) 1976-05-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee