WO2007040948A3 - Rapid charge lithium ion battery charger - Google Patents

Rapid charge lithium ion battery charger Download PDF

Info

Publication number
WO2007040948A3
WO2007040948A3 PCT/US2006/035897 US2006035897W WO2007040948A3 WO 2007040948 A3 WO2007040948 A3 WO 2007040948A3 US 2006035897 W US2006035897 W US 2006035897W WO 2007040948 A3 WO2007040948 A3 WO 2007040948A3
Authority
WO
WIPO (PCT)
Prior art keywords
charging
voltage
circuit
battery cell
battery
Prior art date
Application number
PCT/US2006/035897
Other languages
French (fr)
Other versions
WO2007040948A2 (en
Inventor
Robert F Wentink
Huang Tai Guang
Xia Ju Jie
Li Wen Hua
Original Assignee
Internat Components Corp
Robert F Wentink
Huang Tai Guang
Xia Ju Jie
Li Wen Hua
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 Internat Components Corp, Robert F Wentink, Huang Tai Guang, Xia Ju Jie, Li Wen Hua filed Critical Internat Components Corp
Publication of WO2007040948A2 publication Critical patent/WO2007040948A2/en
Publication of WO2007040948A3 publication Critical patent/WO2007040948A3/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
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • 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
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
    • 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
    • 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
    • Y02E60/13—Energy storage using capacitors

Abstract

A rapid charging circuit (figure 4) for a lithium ion battery (57, 59). The battery charger (figure 4) in accordance with the present invention compensates for the voltage drops across the various resistance elements (61) in the battery circuit (figure 4) by setting the charging voltage to a level (53) to compensate for the initial resistance of the series resistances in the circuit and an additional resistance selected to take into account the anticipated increase in resistance of the various circuit elements over time. The battery charger (figure 4) in accordance with the present invention periodically monitors (55) the open- circuit voltage of the battery cell (57, 59) and reduces the charging voltage (51) to when the battery cell voltage reaches the optimal value. Thus, during a constant current charging mode, the battery cell is dπven at a relatively optimal charging current to reduce the charging time. As such, the system is able to optimize the charging current supplied to a battery cell during a constant current mode of operation while compensating for circuit elements whose resistance may vary over time due to temperature (RT) or other factors, such as corrosion, while at the same time avoiding exceeding the maximum recommended voltage for the battery cell.
PCT/US2006/035897 2005-09-30 2006-09-14 Rapid charge lithium ion battery charger WO2007040948A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/241,718 2005-09-30
US11/241,718 US7626362B2 (en) 2005-09-30 2005-09-30 Rapid charge lithium ion battery charger

Publications (2)

Publication Number Publication Date
WO2007040948A2 WO2007040948A2 (en) 2007-04-12
WO2007040948A3 true WO2007040948A3 (en) 2009-04-23

Family

ID=37901263

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/035897 WO2007040948A2 (en) 2005-09-30 2006-09-14 Rapid charge lithium ion battery charger

Country Status (2)

Country Link
US (4) US7626362B2 (en)
WO (1) WO2007040948A2 (en)

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Also Published As

Publication number Publication date
US20070075682A1 (en) 2007-04-05
US7898220B2 (en) 2011-03-01
US20080012533A1 (en) 2008-01-17
WO2007040948A2 (en) 2007-04-12
US7683574B2 (en) 2010-03-23
US20080024090A1 (en) 2008-01-31
US20100033137A1 (en) 2010-02-11
US7598709B2 (en) 2009-10-06
US7626362B2 (en) 2009-12-01

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