EP0588790A1 - Verfahren und schaltungsanordnung zum laden und pruefen vonbatterien - Google Patents
Verfahren und schaltungsanordnung zum laden und pruefen vonbatterienInfo
- Publication number
- EP0588790A1 EP0588790A1 EP91913582A EP91913582A EP0588790A1 EP 0588790 A1 EP0588790 A1 EP 0588790A1 EP 91913582 A EP91913582 A EP 91913582A EP 91913582 A EP91913582 A EP 91913582A EP 0588790 A1 EP0588790 A1 EP 0588790A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- battery
- voltage
- current
- charge
- cells
- 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.)
- Withdrawn
Links
- 238000007600 charging Methods 0.000 title claims abstract description 48
- 238000012360 testing method Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims description 105
- 230000007547 defect Effects 0.000 claims description 33
- 239000002253 acid Substances 0.000 claims description 32
- 230000003247 decreasing effect Effects 0.000 claims description 28
- 230000004044 response Effects 0.000 claims description 18
- 230000006870 function Effects 0.000 claims description 14
- 230000007423 decrease Effects 0.000 claims description 8
- 230000002950 deficient Effects 0.000 claims description 6
- 239000003792 electrolyte Substances 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000010998 test method Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 78
- 230000010287 polarization Effects 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 230000008859 change Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 230000028161 membrane depolarization Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010280 constant potential charging Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- ZRXYMHTYEQQBLN-UHFFFAOYSA-N [Br].[Zn] Chemical compound [Br].[Zn] ZRXYMHTYEQQBLN-UHFFFAOYSA-N 0.000 description 1
- ICGLOTCMOYCOTB-UHFFFAOYSA-N [Cl].[Zn] Chemical compound [Cl].[Zn] ICGLOTCMOYCOTB-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 description 1
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- BSWGGJHLVUUXTL-UHFFFAOYSA-N silver zinc Chemical compound [Zn].[Ag] BSWGGJHLVUUXTL-UHFFFAOYSA-N 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Definitions
- FIG. 12 is a flow diagram of a preferred embodiment of this invention.
- FIG. 13 is a charge profile of a lead-acid battery, whose initial SOC was 50%, charged with the battery charger of this invention in accordance with the embodiment of
- the signal consists of a continuous or discrete increasing voltage ramp from the OCV to a predetermined end voltage usually a voltage corresponding to about 0.4 to about 0.6 V higher.- than the OCV for each cell.
- a voltage corresponding to about 0.4 to about 0.6 V higher.- than the OCV for each cell Daring the voltage ramp, the current response of the battery is measured.
- a plot of dl/dV vs Vramp, Iresponse or ramp time exhibits a minimum corresponding to the gas point. The presence of multiple minima in any direction indicates the presence of mismatched cells in the battery.
- FIGS. 7 and 8 show dl/dV vs. Iresponse data for the same battery at different states of charge (50 and 100%). The Igas and Vgas parameters have the same significance as in the previous current ramp method.
- a 20 Ah battery was discharged to various known depths, and then recharged with the apparatus of this invention.
- the charge output from the battery during discharge, the corresponding state of charge, the subsequent charge input to the battery during the charge process, and the percent of the charge wasted are shown in
- a 20 Ah battery was discharged to the low cut-off limit of 1.75 V/cell, and left in open circuit for 3 days. After this period when charged with said charger, the message, "Presence of sulfated cells" was indicated by the charger, yet the battery was charged successfully. The same procedure was repeated with an open circuit period of 8 days after discharge with the same result.
Landscapes
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/350,071 US5049803A (en) | 1989-05-10 | 1989-05-10 | Method and apparatus for charging and testing batteries |
| PCT/US1991/004232 WO1992022822A1 (en) | 1989-05-10 | 1991-06-13 | Method and apparatus for charging and testing batteries |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0588790A1 true EP0588790A1 (de) | 1994-03-30 |
Family
ID=26783207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP91913582A Withdrawn EP0588790A1 (de) | 1989-05-10 | 1991-06-13 | Verfahren und schaltungsanordnung zum laden und pruefen vonbatterien |
Country Status (1)
| Country | Link |
|---|---|
| EP (1) | EP0588790A1 (de) |
-
1991
- 1991-06-13 EP EP91913582A patent/EP0588790A1/de not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9222822A1 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 19931214 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE ES FR GB IT SE |
|
| 17Q | First examination report despatched |
Effective date: 19940421 |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ALLIEDSIGNAL INC. |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 19940901 |