EP2030267A2 - Batterie mit elektrolytdurchmischungsvorrichtung - Google Patents
Batterie mit elektrolytdurchmischungsvorrichtungInfo
- Publication number
- EP2030267A2 EP2030267A2 EP07722388A EP07722388A EP2030267A2 EP 2030267 A2 EP2030267 A2 EP 2030267A2 EP 07722388 A EP07722388 A EP 07722388A EP 07722388 A EP07722388 A EP 07722388A EP 2030267 A2 EP2030267 A2 EP 2030267A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- battery
- electrolyte
- flow channel
- housing
- openings
- 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- Withdrawn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
- 239000003792 electrolyte Substances 0.000 title claims abstract description 38
- 239000011244 liquid electrolyte Substances 0.000 claims abstract description 12
- 238000009826 distribution Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 239000002253 acid Substances 0.000 description 11
- 238000005096 rolling process Methods 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000013517 stratification Methods 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
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
- H01M10/06—Lead-acid accumulators
- H01M10/12—Construction or manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
-
- 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
- H01M10/4214—Arrangements for moving electrodes or electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
- H01M50/691—Arrangements or processes for draining liquids from casings; Cleaning battery or cell casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/70—Arrangements for stirring or circulating the electrolyte
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the invention relates to a battery with liquid electrolyte, hereinafter called liquid electrolyte battery, preferably in moving vehicles, such. B. in cars, boats or aircraft is used and has a device for electrolyte mixing.
- the endeavor of the vehicle industry for lightweight construction also relates to the saving of battery weight.
- the demand for higher battery power increases, since in addition to the conventional energy for starting z. B. a car and energy for additional aggregates such as power windows, servomotors for adjusting the seats or for electrically heating the seats is needed.
- Battery power is understood below to mean the capacity of the battery as well as the ability of the battery to supply power or to draw power. Battery performance is affected by various factors known to those skilled in the art.
- the inventors of the present invention have determined, however, that no optimal electrolyte intermixing can be achieved with these devices known from the prior art.
- the object of the invention is to provide a liquid electrolyte battery with electrolyte mixing by accelerated movements of the battery, wherein the electrolyte mixing is to be improved over the prior art. At the same time, there is a need for a particularly simple and cost-effective solution.
- the battery comprises:
- a housing with side walls, a caseback and a cover This housing forms a battery cell. Frequently several such battery cells are combined to form a battery with a multiple housing. summarizes.
- the plate-shaped electrodes are covered, which are covered by the liquid electrolyte.
- a liquid electrolyte circulation apparatus For circulation of the electrolyte in the case of a positive or negative acceleration of the battery in a preferred direction, a liquid electrolyte circulation apparatus is provided which has the following features:
- one flow channel plate is arranged at a distance, so that a respective flow channel is formed between the respective battery housing wall and the flow channel plate.
- the electrolyte when the battery accelerates in the predetermined direction, the electrolyte is pushed upwards through the flow channel.
- the end of the flow channel is a Ausströmschlitz, to which above the electrolyte level each an approximately horizontal or slightly inclined to the center of the battery flow plate connects, via which the effluent electrolyte runs, so that an electrolyte circuit is formed.
- the drainage plates have openings over their entire surface, through which the electrolyte can drain.
- the apertures are arranged in terms of their size and distribution so that the effluent electrolyte distributed almost uniformly on the electrolyte surface.
- the concrete dimensioning can be determined by a person skilled in the art on the basis of a few experiments or calculated using known software for the calculation of fluid mechanical processes.
- the openings are connected to the top of the drain plate with rectilinear channels.
- the volume of electrolyte that is currently on the drain plate is urged by rolling motion of the vehicle in an unpredictable direction. This results in uneven propagation of the electrolyte wave on the drain plate.
- the channels are at least 0.2 mm deep. A depth of about 0.5 to 1 mm is optimal. If the channels are formed even deeper, this brings no further benefit. It is only to be noted that the thickness of the drain plate must be adapted to the channel depth.
- Fig. 1 shows a side sectional view and a detailed plan view of a first embodiment of the invention.
- Fig. 2 shows a side sectional view and a detailed plan view of a second embodiment of the invention.
- Fig. 3 shows an empty battery box according to the prior art.
- FIG. 3 shows a battery box with 6 cells. All subsequent explanations relate to a single cell, the cell being shown in FIGS. 1 and 2 from the direction indicated by reference numeral 1c in FIG.
- FIG. 1 shows a side sectional view of a first embodiment of the invention.
- a battery case having side walls 1a, 1b, a case bottom 1e, and a cover includes vertical plate electrodes 2 and a liquid electrolyte 3.
- This case forms a battery cell.
- Usually several such battery cells are combined to form a battery in a multiple housing.
- the level of the electrolyte 3 is indicated by 3a.
- a respective flow channel plate 4a and 4b Parallel to the vertical edges of the plate electrodes 2 is a respective flow channel plate 4a and 4b arranged so that between the respective battery housing wall 1a, 1b and the flow channel plate 4a, 4b each have a flow channel 5a, 5b is formed.
- each flow channel plate 4a, 4b a horizontal or slightly inclined to the housing center drain plate 6a, 6b is provided, wherein the drain plate is disposed a few millimeters above the electrolyte level 3a.
- the electrolyte 3 When the battery is accelerated in a predetermined direction, the electrolyte 3 is pushed up by one of the flow channels 5a or 5b.
- the drainage plates 6a, 6b have apertures 7 within their entire area, through which the electrolyte can drain.
- the lower heavier acid mixes with the upper lighter acid so that acid stratification, so-called acid stating, can be avoided.
- the electrolyte passing over the drainage plates 6a, 6b is distributed almost uniformly over the entire electrolyte surface so that there are no dead zones during mixing, ie to areas which only slightly or not intermix become. From the view AA it can be seen that the openings 7 are formed as round holes, which are becoming larger towards the center of the housing.
- the electrolyte in the left flow channel 5a spills up, forms at the end of the flow channel, a small liquid wave, which runs to the right and is symbolically represented by the curved arrow.
- a first volume amount runs down through the first row of holes.
- the volume of the liquid wave is slightly reduced.
- these holes must be slightly larger. The same considerations apply to the next row of holes and the right flow channel 5b, so that a description can be dispensed with.
- the apertures 7 can have different shapes and sizes. It therefore does not require any inventive activity to determine suitable shapes and sizes for the openings and their required arrangement, if the person skilled in the art uses the technical teaching of patent claim 1 for this purpose.
- Fig. 2 shows a side sectional view of a second embodiment of the invention, in which the openings 7 are connected to rectilinear channels 8.
- the channels are at least 0, 2 mm deep.
- the electrolyte circuit has been substantially improved in the invention, so that now even a good mixing occurs when the battery is not or not exclusively accelerated in its preferred direction in which a particularly pronounced Sloshing of the electrolyte occurs, but sufficient mixing occurs even when the battery is installed transversely to the preferred direction, so that the desired sloshing of the electrolyte preferably occurs when cornering.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Filling, Topping-Up Batteries (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006021578A DE102006021578B3 (de) | 2006-05-09 | 2006-05-09 | Batterie mit Elektrolytdurchmischungsvorrichtung |
PCT/DE2007/000834 WO2007128293A2 (de) | 2006-05-09 | 2007-05-09 | Batterie mit elektrolytdurchmischungsvorrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2030267A2 true EP2030267A2 (de) | 2009-03-04 |
Family
ID=38438628
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07722388A Withdrawn EP2030267A2 (de) | 2006-05-09 | 2007-05-09 | Batterie mit elektrolytdurchmischungsvorrichtung |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2030267A2 (de) |
DE (1) | DE102006021578B3 (de) |
WO (1) | WO2007128293A2 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2914159C (en) | 2012-11-28 | 2021-03-16 | Iq Power Licensing Ag | Battery with electrolyte intermixing device |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4963444A (en) * | 1988-05-31 | 1990-10-16 | Globe-Union Inc. | Internal hydrostatic pump for a mobile vehicle battery |
DE19722361A1 (de) * | 1997-05-28 | 1998-12-03 | Wittkewitz Karin | Anordnung zum Durchmischen von Fluiden |
DE19744863A1 (de) * | 1997-10-10 | 1999-04-15 | Iq Battery Res & Dev Gmbh | Flüssigelektrolytbatterie |
DE19823916A1 (de) * | 1998-05-28 | 1999-12-02 | Iq Battery Res & Dev Gmbh | Flüssigelektrolytbatterie |
-
2006
- 2006-05-09 DE DE102006021578A patent/DE102006021578B3/de not_active Expired - Fee Related
-
2007
- 2007-05-09 EP EP07722388A patent/EP2030267A2/de not_active Withdrawn
- 2007-05-09 WO PCT/DE2007/000834 patent/WO2007128293A2/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2007128293A2 * |
Also Published As
Publication number | Publication date |
---|---|
DE102006021578B3 (de) | 2007-09-27 |
WO2007128293A2 (de) | 2007-11-15 |
WO2007128293A3 (de) | 2008-02-14 |
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Legal Events
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RIC1 | Information provided on ipc code assigned before grant |
Ipc: H01M 10/12 20060101ALI20110530BHEP Ipc: H01M 2/36 20060101ALI20110530BHEP Ipc: H01M 10/42 20060101ALI20110530BHEP Ipc: H01M 2/02 20060101ALI20110530BHEP Ipc: H01M 2/38 20060101AFI20110530BHEP |
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