DE102008024812A1 - Electro-chemical storage battery, has sensor elements connected with measuring unit and designed as electro-chemical cells with positive and negative electrode surface units, which act together with electrolyte in cell area - Google Patents
Electro-chemical storage battery, has sensor elements connected with measuring unit and designed as electro-chemical cells with positive and negative electrode surface units, which act together with electrolyte in cell area Download PDFInfo
- Publication number
- DE102008024812A1 DE102008024812A1 DE102008024812A DE102008024812A DE102008024812A1 DE 102008024812 A1 DE102008024812 A1 DE 102008024812A1 DE 102008024812 A DE102008024812 A DE 102008024812A DE 102008024812 A DE102008024812 A DE 102008024812A DE 102008024812 A1 DE102008024812 A1 DE 102008024812A1
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- Prior art keywords
- cell
- electrolyte
- acid
- positive
- sensor elements
- 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
Links
- 239000003792 electrolyte Substances 0.000 title claims abstract description 36
- 239000000126 substance Substances 0.000 title abstract 3
- 239000002253 acid Substances 0.000 claims abstract description 76
- 239000000758 substrate Substances 0.000 claims description 17
- YADSGOSSYOOKMP-UHFFFAOYSA-N dioxolead Chemical compound O=[Pb]=O YADSGOSSYOOKMP-UHFFFAOYSA-N 0.000 claims description 16
- 239000004020 conductor Substances 0.000 claims description 9
- 239000004063 acid-resistant material Substances 0.000 claims 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 16
- 238000013517 stratification Methods 0.000 description 9
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001739 density measurement Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000011262 electrochemically active material Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 229940021013 electrolyte solution Drugs 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000003862 health status Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007858 starting material Substances 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/484—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring electrolyte level, electrolyte density or electrolyte conductivity
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
Abstract
Description
Die Erfindung betrifft eine elektrochemische Speicherbatterie mit einem Zellgefäß mit mindestens einem Zellraum, mit einer Mehrzahl elektrochemische Zellen bildende positiven und negativen Elektroden, sowie mit Elektrolyt in den Zellräumen, und mit einem das Zellgefäß an einer gegenüberliegend von einem Boden des Zellgefäßes offenen Oberseite abschließenden Deckel.The The invention relates to an electrochemical storage battery with a Cell vessel with at least one cell space, with one Multiple electrochemical cells forming positive and negative Electrodes, as well as with electrolyte in the cell spaces, and with one the cell vessel at one opposite finalizing a bottom of the cell vessel open top Cover.
Beim Betrieb einer elektrochemischen Speicherbatterie mit Elektrolyt stellt sich das Problem, dass sich in Abhängigkeit von dem Betriebs- oder Alterungszustand eine sogenannte Säureschichtung innerhalb der Batterie bildet. Diese Säureschichtung ist so ausgeprägt, dass die Konzentration der Säure über die Höhe des Akkumulators ungleichmäßig verteilt ist, d. h. das sich ein Konzentrationsgradient innerhalb des Elektrolyten aufgrund von elektrochemischen Reaktionen, von Transportvorgängen und der Schwerkraft ausbildet.At the Operation of an electrochemical storage battery with electrolyte turns the problem that depends on the operating or aging state, a so-called acid stratification inside the battery. This acid stratification is so pronounced that the concentration of acid is above the height of the accumulator uneven is distributed, d. H. which is a concentration gradient within of the electrolyte due to electrochemical reactions, from Transport processes and gravity trains.
Die Säureschichtung verhindert eine Vollladung des Akkumulators dadurch, dass die höhere Säuerdichte dem unteren Elektrolytraum potenzialbestimmend für die ganze Batterie ist und damit das Potenzial einer vollgeladenen Batterie hat. Zudem erfolgt eine beschleunigte Alterung durch die höhere Elektrolytkonzentration. Weiterhin ist durch Messen der Ruhespannung keine Ladezustandserkennung mehr möglich.The Acid stratification prevents a full charge of the accumulator in that the higher acid density is lower Electrolyte compartment determines the potential of the whole battery and thus has the potential of a fully charged battery. moreover accelerated aging occurs due to the higher electrolyte concentration. Furthermore, by measuring the rest voltage no charge state detection more possible.
Der Säuredichtewert ist daher für die Bestimmung des Batteriezustands entscheidend, insbesondere zur Ermittlung des Ladezustands SOC und des Gesundheitszustand SOH (state of health). Es sind verschiedene Verfahren bekannt, die ein entsprechend der Änderung der Säuredichte sich änderndes Ausgangssignal liefern.Of the Acid density value is therefore for the determination of the Battery state crucial, especially for determining the state of charge SOC and health status SOH (state of health). They are different Method is known, which corresponds to the change of the Acid density will provide changing output signal.
Zur
Bestimmung des Ladezustands SOC von Bleiakkumulatoren mit Säureschichtung
sind zahlreiche Verfahren bekannt. Beispielsweise beschreibt
Für die Anwendung der bekannten Verfahren ist es problematisch, dass die Säuredichte im Zellraum nicht gleichbleibend verteilt und konstant ist. Es ist daher nicht ausreichend, im Zellraum die Säuredichte mit einem Sensor nur an einer Stelle, insbesondere im oberen Bereich zu messen. Zudem ist zur Bestimmung des Zustands eines Akkumulators die Kenntnis wichtig, ob eine Säureschichtung vorliegt.For the application of the known methods, it is problematic that the acid density in the cell space is not uniformly distributed and is constant. It is therefore not sufficient in cell space Acid density with a sensor only in one place, in particular to measure in the upper area. In addition, to determine the condition of a rechargeable battery the knowledge important if an acid stratification is present.
Aufgabe der Erfindung ist es daher, eine verbesserte elektrochemische Speicherbatterie mit Säuredichte-Sensorelementen zu schaffen, die eine einfache, genaue und zuverlässige Ermittlung der Elektrolytkonzentration sowie der Säuredichteverteilung zulässt.The object of the invention is therefore a ver improved electrochemical storage battery with acid density sensor elements to create, which allows a simple, accurate and reliable determination of the electrolyte concentration and the acid density distribution.
Die Aufgabe wird mit der elektrochemischen Speicherbatterie der eingangs genannten Art dadurch gelöst, dass über die Höhe des Zellgefäßes vom Boden zum Deckel in mindestens einen Zellraum verteilt Säuredichte-Sensorelemente angeordnet sind, die Säuredichte-Sensorelemente mit einer zur Bestimmung der Säuredichte des Elektrolyten im Bereich der Höhe des jeweiligen Säuredichte-Sensorelementes aus den von den Säuredichte-Sensorelementen bereitgestellten elektrischen Größen eingerichteten Messeinheit verbunden sind und die Säuredichte-Sensorelemente als elektrochemische Zellen mit positiven und negativen Elektrodenflächenelementen, die mit dem zu untersuchenden Elektrolyt in dem jeweiligen Zellraum zusammenwirken, ausgebildet sind.The Task is with the electrochemical storage battery of the beginning type mentioned solved that over the height of the cell vessel from the bottom to the lid in at least a cell space distributed acid density sensor elements arranged are, the acid density sensor elements with one for the determination the acid density of the electrolyte in the range of height the respective acid density sensor element from the of electrical acid provided to the acid density sensor elements Sizes furnished measuring unit are connected and the acid density sensor elements as electrochemical Cells with positive and negative electrode surface elements, the with the electrolyte to be examined in each cell space interact, are trained.
Es wird somit vorgeschlagen, im Unterschied zu den bislang bekannten Akkumulatoren eine Mehrzahl von Säuredichte-Sensorelementen senkrecht, d. h. über die Höhe des Zellgefäßes verteilt im Zellraum anzuordnen. Die Verteilung der Säuredichte-Sensorelemente über die Höhe des Zellgefäßes vom Boden zum Deckel muss aber nicht gleichförmig sein und die Säuredichte-Sensorelemente müssen sich nicht bis zum Deckel und Boden des Zellgefäßes hinunter erstrecken. Entscheidend ist, dass im interessierenden Bereich des Elektrolyts die sich insbesondere durch Schwerkraft über die Höhe veränderte Säuredichte, d. h. der Konzentrationsgradient mit Hilfe der in Richtung der Schwerkraft verteilt angeordneten Säuredichte-Sensorelemente erfassbar ist.It is thus proposed, in contrast to the previously known Accumulators a plurality of acid density sensor elements vertical, d. H. about the height of the cell vessel distributed in the cell space to arrange. The distribution of the acid density sensor elements via the height of the cell vessel from the ground to However, the lid does not have to be uniform and the acid density sensor elements do not have to reach the top and bottom of the cell vessel extend down. What matters is that in the interest Range of the electrolyte, in particular by gravity over the height changed acid density, d. H. the concentration gradient with the help of in the direction of gravity distributed arranged acid density sensor elements detectable is.
Die positiven und negativen Elektrodenflächen der Säuredichte-Sensorelemente bilden besonders bevorzugt ein Elektrodenpaar mit Bleienthaltenden negativen Elektroden und Bleidioxidenthaltenen positiven Elektroden.The positive and negative electrode surfaces of the acid density sensor elements Particularly preferably, an electrode pair with lead-containing ends form negative electrodes and lead dioxide containing positive electrodes.
Weiterhin ist es vorteilhaft, wenn mindestens ein Temperatursensor mit dem Zellgefäß gekoppelt ist, um die Elektrolyttemperatur zu bestimmen oder zumindest ungefähr abzuschätzen. Mit Hilfe dieses mit einer Messeinheit verbundenen mindestens einen Temperatursensors ist dann möglich, die jeweiligen Säuredichten in funktionaler Abhängigkeit von einer zugeordneten Elektrolyttemperatur zu bestimmen. Unter der Annahme einer annähernd gleichen Temperatur in allen Zellen einer Speicherbatterie reicht es aus, die Temperatur an einem Ort der Speicherbatterie zu messen.Farther it is advantageous if at least one temperature sensor with the Cell vessel is coupled to the electrolyte temperature to determine or at least approximate. With the help of this connected to a measuring unit at least one Temperature sensor is then possible, the respective acid densities in functional dependence on an assigned electrolyte temperature to determine. Assuming an approximately equal temperature In all cells of a storage battery, it is enough to measure the temperature to measure at a location of the storage battery.
Eine Messung in der Umgebung der Speicherbatterie kann unter Umständen auch ausreichend sein, da der Temperaturgradient zwischen Umgebungstemperatur und Zelltemperatur in der Regel annähernd gleich ist und etwaige Schwankungen unter Berücksichtigung der Temperatur als Einflussgröße zur Bestimmung der jeweiligen Säuredichten einen vernachlässigbaren Einfluss haben.A Measurement in the environment of the storage battery may be possible also be sufficient, since the temperature gradient between ambient temperature and cell temperature is usually approximately the same and possible fluctuations taking into account the temperature as influencing factor for the determination of the respective Acid densities have a negligible influence to have.
Die positiven und negativen Elektrodenflächenelemente, die die Säuredichte-Sensorelemente bilden, können auf oder in einem Substrat angebracht sein, das in den jeweiligen Zellraum eingebaut ist. Ein solches Substrat kann beispielsweise eine flexible Folie sein. Das Substrat trägt Sensorsignalleiter, die mit den Elektrodenflächenelementen elektrisch leitend verbunden sind und aus der Speicherbatterie herausgeführt werden, um die Sensorsignalleiter mit der Messeinheit zu verbinden.The positive and negative electrode sheets, the can form the acid density sensor elements be mounted on or in a substrate that in the respective Cell space is installed. Such a substrate may be, for example to be a flexible film. The substrate carries sensor signal conductors, the electrically conductive with the electrode surface elements are connected and led out of the storage battery to connect the sensor signal conductors to the measuring unit.
Das Substrat sollte dann aus einem elektrisch isolierten und säurefesten Material bestehen.The Substrate should then be made of an electrically isolated and acid-proof Material exist.
Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels mit den beigefügten Zeichnungen näher erläutert. Es zeigen:The Invention will be described below with reference to an embodiment explained in more detail with the accompanying drawings. Show it:
In
den Zellraum
Auf
dem Substrat
Es
ist erkennbar, dass das Säuredichte-Sensorelement
Weiterhin
lässt
Die
positiven und negativen Elektrodenflächenelemente
Die
Sensorssignalleiter können aus einem beliebigen elektrisch
leitenden Material sein, sollten jedoch zur zuverlässigen
Anbindung an die aktive Masse der Elektrodenflächenelemente
Insbesondere
sollte eine die aktive Masse bildende Paste in eine vorgesehene
Vertiefung auf der Oberseite des jeweiligen Elektrodenflächenelementes
Dabei
ist D die Säuredichte des Elektrolyten im Bereich angrenzend
an die jeweilige elektrochemische Miniaturzelle und U die gemessene
Zellenspannung zwischen einem Paar positiver und negativer Elektrodenflächenelemente
Die
auf dem Substrat
Geringe
Selbstentladungen der elektrochemischen Miniaturzellen aufgrund
der Reaktion zwischen dem aktiven Elektrodenmaterial und der Schwefelsäure
des Elektro lyten führt zu bestimmten Abweichungen der detektierten
Spannungen zwischen den positiven und negativen Elektrodenflächenelementen
Die
Elektrolytdichte wurde mit Hilfe der oben beschriebenen Sensoren
gemessen, die in dem freien Volumen des Elektrolyts zwischen den
Elektrodenplatten, wie in der
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 19819013 A1 [0005] - DE 19819013 A1 [0005]
- - DE 4221189 C2 [0006] - DE 4221189 C2 [0006]
- - US 2844532 A [0007] US Pat. No. 2,843,532 A [0007]
- - DE 19629569 [0008] - DE 19629569 [0008]
- - US 4689571 A [0009] - US 4689571 A [0009]
- - DE 10216637 B3 [0010] - DE 10216637 B3 [0010]
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008024812.6A DE102008024812B4 (en) | 2008-05-23 | 2008-05-23 | Electrochemical storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008024812.6A DE102008024812B4 (en) | 2008-05-23 | 2008-05-23 | Electrochemical storage battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE102008024812A1 true DE102008024812A1 (en) | 2009-11-26 |
| DE102008024812B4 DE102008024812B4 (en) | 2017-05-04 |
Family
ID=41212618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102008024812.6A Active DE102008024812B4 (en) | 2008-05-23 | 2008-05-23 | Electrochemical storage battery |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102008024812B4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110376095A (en) * | 2019-06-05 | 2019-10-25 | 天能集团江苏科技有限公司 | The acid adding uniformity detection method of energy storage battery |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2844532A (en) | 1956-10-19 | 1958-07-22 | Joseph C White | Apparatus for determining specific gravity of an acid solution |
| DE2450227A1 (en) * | 1974-10-23 | 1976-05-06 | Hoeh Guenther Dipl Ing | Specific gravity meter for acid electrolytes - has two point electrodes in housing to measure conductivity of tested electrolyte |
| US4689571A (en) | 1984-01-06 | 1987-08-25 | Japan Storage Battery Company Limited | Specific gravity detecting device for lead-acid battery |
| DE19629569A1 (en) | 1996-07-11 | 1998-01-22 | Bae Berliner Batteriefabrik Gm | Sulphuric acid concentration determination method for batteries |
| DE19819013A1 (en) | 1998-04-29 | 1999-11-11 | Ulrich Kuipers | Combined density, filling level and temperature measuring device and method e.g. for liquid electrolyte battery |
| DE19915328C1 (en) * | 1999-04-03 | 2000-07-27 | Fraunhofer Ges Forschung | Arrangement for measuring density of electrolyte, has electrodes in tubes connected to voltage source to generate gas to fill tubes to associated depths on contact with electrolyte |
| DE4221189C2 (en) | 1991-07-01 | 2003-05-15 | Yuasa Battery Co Ltd | Sensor for the sulfuric acid concentration and lead accumulator equipped with the sensor for the sulfuric acid concentration |
| DE10216637B3 (en) | 2002-04-15 | 2004-01-22 | Akkumulatorenfabrik Moll Gmbh & Co. Kg | Method and device for determining the state of charge of a battery |
-
2008
- 2008-05-23 DE DE102008024812.6A patent/DE102008024812B4/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2844532A (en) | 1956-10-19 | 1958-07-22 | Joseph C White | Apparatus for determining specific gravity of an acid solution |
| DE2450227A1 (en) * | 1974-10-23 | 1976-05-06 | Hoeh Guenther Dipl Ing | Specific gravity meter for acid electrolytes - has two point electrodes in housing to measure conductivity of tested electrolyte |
| US4689571A (en) | 1984-01-06 | 1987-08-25 | Japan Storage Battery Company Limited | Specific gravity detecting device for lead-acid battery |
| DE4221189C2 (en) | 1991-07-01 | 2003-05-15 | Yuasa Battery Co Ltd | Sensor for the sulfuric acid concentration and lead accumulator equipped with the sensor for the sulfuric acid concentration |
| DE19629569A1 (en) | 1996-07-11 | 1998-01-22 | Bae Berliner Batteriefabrik Gm | Sulphuric acid concentration determination method for batteries |
| DE19819013A1 (en) | 1998-04-29 | 1999-11-11 | Ulrich Kuipers | Combined density, filling level and temperature measuring device and method e.g. for liquid electrolyte battery |
| DE19915328C1 (en) * | 1999-04-03 | 2000-07-27 | Fraunhofer Ges Forschung | Arrangement for measuring density of electrolyte, has electrodes in tubes connected to voltage source to generate gas to fill tubes to associated depths on contact with electrolyte |
| DE10216637B3 (en) | 2002-04-15 | 2004-01-22 | Akkumulatorenfabrik Moll Gmbh & Co. Kg | Method and device for determining the state of charge of a battery |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110376095A (en) * | 2019-06-05 | 2019-10-25 | 天能集团江苏科技有限公司 | The acid adding uniformity detection method of energy storage battery |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102008024812B4 (en) | 2017-05-04 |
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Owner name: JOHNSON CONTROLS AUTOBATTERIE GMBH & CO. KGAA, DE Free format text: FORMER OWNER: VB AUTOBATTERIE GMBH & CO. KGAA, 30419 HANNOVER, DE Effective date: 20141113 |
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Representative=s name: MEISSNER, BOLTE & PARTNER GBR, DE Effective date: 20141113 Representative=s name: MEISSNER, BOLTE & PARTNER GBR, DE Effective date: 20140826 Representative=s name: MEISSNER, BOLTE & PARTNER GBR, DE Effective date: 20140604 Representative=s name: MEISSNER BOLTE PATENTANWAELTE RECHTSANWAELTE P, DE Effective date: 20140604 Representative=s name: MEISSNER BOLTE PATENTANWAELTE RECHTSANWAELTE P, DE Effective date: 20140826 Representative=s name: MEISSNER BOLTE PATENTANWAELTE RECHTSANWAELTE P, DE Effective date: 20141113 |
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