CA2007672A1 - Method for rejuvenating ni-h_ batteries - Google Patents

Method for rejuvenating ni-h_ batteries

Info

Publication number
CA2007672A1
CA2007672A1 CA2007672A CA2007672A CA2007672A1 CA 2007672 A1 CA2007672 A1 CA 2007672A1 CA 2007672 A CA2007672 A CA 2007672A CA 2007672 A CA2007672 A CA 2007672A CA 2007672 A1 CA2007672 A1 CA 2007672A1
Authority
CA
Canada
Prior art keywords
cells
battery
rejuvenating
free water
electrode stacks
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.)
Granted
Application number
CA2007672A
Other languages
French (fr)
Other versions
CA2007672C (en
Inventor
Martin W. Earl
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.)
Comsat Corp
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of CA2007672C publication Critical patent/CA2007672C/en
Publication of CA2007672A1 publication Critical patent/CA2007672A1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01M10/34—Gastight accumulators
    • H01M10/345—Gastight metal hydride accumulators
    • 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
    • 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)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Fuel Cell (AREA)
  • Secondary Cells (AREA)

Abstract

ABSTRACT OF THE DISCLOSURE
A method for rejuvenating Ni-H2 battery cells suffering a voltage anomaly providing an improved cell output voltage and capacity. After the battery containing the cells suffering the voltage anomaly is removed from service, the battery is discharged. Discharging the battery reduces the hydrogen pressure within the cells, thereby increasing the rate of mass transport of free water back to the electrode stacks of the cells. The cells are then left to stand for a period sufficient to allow any free water to diffuse back to the electrode stacks.
CA002007672A 1989-01-18 1990-01-12 Method for rejuvenating ni-h_ batteries Expired - Lifetime CA2007672C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US29813989A 1989-01-18 1989-01-18
US298,139 1989-01-18

Publications (2)

Publication Number Publication Date
CA2007672C CA2007672C (en) 1990-07-18
CA2007672A1 true CA2007672A1 (en) 1990-07-18

Family

ID=23149218

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002007672A Expired - Lifetime CA2007672C (en) 1989-01-18 1990-01-12 Method for rejuvenating ni-h_ batteries

Country Status (5)

Country Link
EP (1) EP0379203B1 (en)
JP (1) JPH03196470A (en)
AU (1) AU619640B2 (en)
CA (1) CA2007672C (en)
DE (1) DE69011539T2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3006813A1 (en) * 2013-06-06 2014-12-12 St Microelectronics Tours Sas REGENERATION OF CHARACTER CAPACITY OF A BATTERY

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4055709A (en) * 1976-08-05 1977-10-25 The United States Of America As Represented By The Secretary Of The Navy Rejuvenation of nickel-cadmium battery cells
DE3326729A1 (en) * 1983-07-25 1985-02-07 Siemens AG, 1000 Berlin und 8000 München METHOD FOR OPERATING AN ELECTROCHEMICAL STORAGE
US4689544A (en) * 1985-10-17 1987-08-25 Hughes Aircraft Company Control of the charging of pressurized gas-metal electrical storage cells

Also Published As

Publication number Publication date
CA2007672C (en) 1990-07-18
JPH03196470A (en) 1991-08-27
DE69011539D1 (en) 1994-09-22
EP0379203B1 (en) 1994-08-17
EP0379203A1 (en) 1990-07-25
AU4790890A (en) 1990-07-26
AU619640B2 (en) 1992-01-30
DE69011539T2 (en) 1995-04-20

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed