WO2002050927A3 - Battery capacity calibration - Google Patents

Battery capacity calibration Download PDF

Info

Publication number
WO2002050927A3
WO2002050927A3 PCT/EP2001/014956 EP0114956W WO0250927A3 WO 2002050927 A3 WO2002050927 A3 WO 2002050927A3 EP 0114956 W EP0114956 W EP 0114956W WO 0250927 A3 WO0250927 A3 WO 0250927A3
Authority
WO
WIPO (PCT)
Prior art keywords
battery
calibration
charging
charging process
capacity
Prior art date
Application number
PCT/EP2001/014956
Other languages
French (fr)
Other versions
WO2002050927A2 (en
Inventor
Kristoffer Ptasinski
Charles Forsberg
Sarandis Kalogeropoulos
Rickard Andersson
Petrus Evers
Derek Liddle
Anders Laangberg
David Demers
Jeremy Carlson
Original Assignee
Ericsson Telefon Ab L M
Kristoffer Ptasinski
Charles Forsberg
Sarandis Kalogeropoulos
Rickard Andersson
Petrus Evers
Derek Liddle
Anders Laangberg
David Demers
Jeremy Carlson
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 Ericsson Telefon Ab L M, Kristoffer Ptasinski, Charles Forsberg, Sarandis Kalogeropoulos, Rickard Andersson, Petrus Evers, Derek Liddle, Anders Laangberg, David Demers, Jeremy Carlson filed Critical Ericsson Telefon Ab L M
Priority to DE60117843T priority Critical patent/DE60117843D1/en
Priority to AU2002233275A priority patent/AU2002233275A1/en
Priority to EP01984865A priority patent/EP1344074B1/en
Publication of WO2002050927A2 publication Critical patent/WO2002050927A2/en
Publication of WO2002050927A3 publication Critical patent/WO2002050927A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/3644—Constructional arrangements
    • G01R31/3648—Constructional arrangements comprising digital calculation means, e.g. for performing an algorithm
    • 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
    • H01M10/44—Methods for charging or discharging
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
    • 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

Method and apparatus for calibrating a rechargeable battery (28) for mobile telephones (10) and other electronic devices. Calibration is accomplished during a process of completely charging (105) the battery (28) by determining (120) the total amount of charge accepted by the battery (28) during the charging process, and providing (130) a value of total charge capacity of the battery (28) based, at least in part, on the total amount of charge accepted by the battery (28). The total charge capacity of the battery (28) is used to calculate remaining battery (28) capacity and to predict the remaining operational time of the device. Alternative calibration procedures are provided (125, 160) if the battery (28) is not completely discharged before charging or if the battery (28) is not fully charged by the charging process. The calibration procedures of the invention require no interaction from a user (other than his initiating the normal charging process), and typically permits a calibration to be carried out notwithstanding varying usage habits of different users.
PCT/EP2001/014956 2000-12-19 2001-12-19 Battery capacity calibration WO2002050927A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE60117843T DE60117843D1 (en) 2000-12-19 2001-12-19 BATTERY CAPACITY CALIBRATION
AU2002233275A AU2002233275A1 (en) 2000-12-19 2001-12-19 Battery capacity calibration
EP01984865A EP1344074B1 (en) 2000-12-19 2001-12-19 Battery capacity calibration

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US25673400P 2000-12-19 2000-12-19
US60/256,734 2000-12-19
US09/859,237 US6630814B2 (en) 2000-12-19 2001-05-16 Method and apparatus for calibrating a rechargeable battery
US09/859,237 2001-05-16

Publications (2)

Publication Number Publication Date
WO2002050927A2 WO2002050927A2 (en) 2002-06-27
WO2002050927A3 true WO2002050927A3 (en) 2003-02-27

Family

ID=26945557

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/014956 WO2002050927A2 (en) 2000-12-19 2001-12-19 Battery capacity calibration

Country Status (7)

Country Link
US (1) US6630814B2 (en)
EP (1) EP1344074B1 (en)
CN (1) CN1489699A (en)
AT (1) ATE320014T1 (en)
AU (1) AU2002233275A1 (en)
DE (1) DE60117843D1 (en)
WO (1) WO2002050927A2 (en)

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US8791669B2 (en) 2010-06-24 2014-07-29 Qnovo Inc. Method and circuitry to calculate the state of charge of a battery/cell
US8970178B2 (en) 2010-06-24 2015-03-03 Qnovo Inc. Method and circuitry to calculate the state of charge of a battery/cell
US11397215B2 (en) 2010-05-21 2022-07-26 Qnovo Inc. Battery adaptive charging using battery physical phenomena
US10067198B2 (en) 2010-05-21 2018-09-04 Qnovo Inc. Method and circuitry to adaptively charge a battery/cell using the state of health thereof
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Also Published As

Publication number Publication date
AU2002233275A1 (en) 2002-07-01
EP1344074A2 (en) 2003-09-17
WO2002050927A2 (en) 2002-06-27
US6630814B2 (en) 2003-10-07
ATE320014T1 (en) 2006-03-15
EP1344074B1 (en) 2006-03-08
US20020167293A1 (en) 2002-11-14
CN1489699A (en) 2004-04-14
DE60117843D1 (en) 2006-05-04

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