KR100252806B1 - Protecting circuit of lithium ion battery - Google Patents

Protecting circuit of lithium ion battery Download PDF

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Publication number
KR100252806B1
KR100252806B1 KR1019970067646A KR19970067646A KR100252806B1 KR 100252806 B1 KR100252806 B1 KR 100252806B1 KR 1019970067646 A KR1019970067646 A KR 1019970067646A KR 19970067646 A KR19970067646 A KR 19970067646A KR 100252806 B1 KR100252806 B1 KR 100252806B1
Authority
KR
South Korea
Prior art keywords
lithium ion
switching element
state
potential
final
Prior art date
Application number
KR1019970067646A
Other languages
Korean (ko)
Other versions
KR19980019602A (en
Inventor
Woo Tae Kim
Original Assignee
Hanrim Electronics Ind Co Ltd
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 Hanrim Electronics Ind Co Ltd filed Critical Hanrim Electronics Ind Co Ltd
Priority to KR1019970067646A priority Critical patent/KR100252806B1/en
Publication of KR19980019602A publication Critical patent/KR19980019602A/en
Application granted granted Critical
Publication of KR100252806B1 publication Critical patent/KR100252806B1/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
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
    • 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • 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
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Protection Of Static Devices (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

PURPOSE: A protective circuit for lithium ion secondary battery is provided to protect the entire circuits of the lithium battery from over-current state by only changing final output switching elements and voltage detection elements without detecting for every batteries independent to their constructions. CONSTITUTION: The protective circuit for lithium ion secondary battery is operated by a switching element(18) for controlling over-discharging and is "on" state when a combined potential of cells(26)(28) above a potential set by a detecting element diode(14) is detected between (+) and (-), and (+) bias is applied to a final discharging switching element(18); and, on the contrary, if the combined potential of cells(26)(28) is detected as the potential set by the diode(14), another switching element(24) is "off" state and consequently, the final element(18) becomes "off" to block the introduction of current between both terminal loads (+) and (-).
KR1019970067646A 1997-12-11 1997-12-11 Protecting circuit of lithium ion battery KR100252806B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019970067646A KR100252806B1 (en) 1997-12-11 1997-12-11 Protecting circuit of lithium ion battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019970067646A KR100252806B1 (en) 1997-12-11 1997-12-11 Protecting circuit of lithium ion battery

Publications (2)

Publication Number Publication Date
KR19980019602A KR19980019602A (en) 1998-06-05
KR100252806B1 true KR100252806B1 (en) 2000-04-15

Family

ID=19527003

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019970067646A KR100252806B1 (en) 1997-12-11 1997-12-11 Protecting circuit of lithium ion battery

Country Status (1)

Country Link
KR (1) KR100252806B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100319963B1 (en) * 1999-04-23 2002-01-10 박명완 Aaaaa
DE602005019188D1 (en) * 2004-08-20 2010-03-18 Lg Chemical Ltd SECONDARY BATTERY WITH CONSTANT VOLTAGE
JP2008532467A (en) 2005-02-25 2008-08-14 エルジー・ケム・リミテッド Secondary battery protection device and method

Also Published As

Publication number Publication date
KR19980019602A (en) 1998-06-05

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