CN106981680A - Conductive measurement layer for measuring potential difference - Google Patents
Conductive measurement layer for measuring potential difference Download PDFInfo
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- CN106981680A CN106981680A CN201611196983.6A CN201611196983A CN106981680A CN 106981680 A CN106981680 A CN 106981680A CN 201611196983 A CN201611196983 A CN 201611196983A CN 106981680 A CN106981680 A CN 106981680A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
- G01R1/203—Resistors used for electric measuring, e.g. decade resistors standards, resistors for comparators, series resistors, shunts
-
- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
-
- 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
- H01M10/058—Construction or manufacture
- H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
-
- 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
-
- 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
-
- 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
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
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- 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
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
-
- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/06—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material including means to minimise changes in resistance with changes in temperature
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- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Secondary Cells (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The present invention relates to the conductive measurement layer of the potential difference between the electric tap of first for measuring measurement layer and at least one second electric tap, wherein measurement layer has at least one first material layer, and the first material layer has substantially temperature independent resistance.
Description
Technical field
The present invention is used to measure the first tap of measurement layer from a kind of according to the as described in the preamble of independent claims
The conductive measurement layer of potential difference between at least one second tap is set out.
Background technology
Current measure device is built with battery pack system, especially lithium ion battery pack system, the current measurement is set
It is standby for example according to shunting, Hall or magnetic flux principle come work.Battery pack current is the external application except battery temperature and cell voltage
The most important measurement parameters united in observation and regulating cell system.
Current sensor is discretely built in battery pack system according to prior art as current measuring device with battery
And controlled device（Batteries management system BMS）Read.Communication between sensor and control device for example passes through bus
System（CAN, LIN bus）Realize, only realized under special circumstances by directly reading the electric signal of physics.
In order to control and/or regulating cell system system, electric current and voltage mutually be used to calculate, such as calculating electric work
Rate（P=U*I）.For the purpose, it is important that while using the mutually total value continuously detected（Electric current and voltage measurement
Synchronism）.If for example, the current value at the first moment is closed from the magnitude of voltage at the second moment different with the first moment
Meter（verrechnen）, then the performance number change mistake calculated.But and particularly when the current measurement quilt in current sensor
Handle and be worth when being passed to control device followed by bus system, just form such time deviation, the control is set
For switch bus signal and then the value of current measurement and voltage measurement can be used to calculate.If such as battery cell monitoring
Unit（CSC）It is used for voltage measurement, then voltage measurement can also be decoupled in time in itself, and the battery monitoring unit passes through total
Linear system system is communicated with battery control equipment.
Filtering for example in the software engineering expended to current value and/or magnitude of voltage or it is smooth when run into these
Produced problem in the prior art.This cause the inaccuracy on measured value and the problem of synchronism in only have
Realize to condition and remedy.The thing followed is the bunch of cables and multipart and some of complex bus-bar or high pressure of complexity
Cable in loop, so as to middle connection sensor, wherein mechanism is connected with each other by the bunch of cables.These measures cause
High complexity and therefore also cause high cost.In addition, each sensor with required environment, such as bunch of cables and/or
Interface, the structure space in battery pack bag and weight are cost and efficiency are therefore reduced in terms of volume and weight.
In addition, temperature passes through according to prior art by the temperature sensor near battery, such as battery connector
Module controller measures and is sent to battery control equipment by bus system.Show that some are as already described above
Shortcoming.
The strong determination for simplifying streaming current of the invention and the mentioned shortcoming of elimination.In one embodiment, originally
Invention can be used for temperature.Electric current, voltage and temperature on a certain position, such as module controller is by synchro measure
And it is sent to battery control equipment.Thus it is strong to improve quality and battery pack that measured value detection and measured value are handled
Regulation, and thus simplify complexity, this also results in weight in addition to related cost savings and saved and structure space section
Save.The bunch of cables canceled improves the security of battery pack, because being reduced along with the risk of wiring, for example insulation fault or
Short circuit risk.
The T5 of document DE 11 2,010 003 272 disclose a kind of battery cell with integrated sensor platform.
Battery cell of the configuration with the sensor platform for possessing sensor element, to provide the former characteristic on battery cell
With the information of parameter.Sensor platform can be integrated into the structure of battery cell by the embodiment of battery cell, be made
For the separated structure included in battery cell, or have as these combination.In shown embodiment
In, battery cell has sensor platform, and the sensor platform has sensor element near the measured zone of positioning, its
Middle sensor platform has substrate, and the substrate has the material layer applied thereon.Material layer has at least one sensor layer,
The sensor layer constitutes sensor element so that sensor element responds the characteristic of battery cell.
The content of the invention
Advantages of the present invention
And advantages below is had according to the way of the characteristic features with independent claims of the present invention, measurement layer has base
Temperature independent resistance in sheet.Thus substantially can be with environment temperature independently by the electricity in measurement layer and known resistance
Pressure drop performs electric current and determined.
Other advantageous embodiments are the themes of dependent claims.
The first material layer of measurement layer by constantan, the semiconductor of doping, metal alloy, metal and/or is led at least in part
Electric plastics are constituted.It is achieved in the temperature dependency of good electric conductivity and very little.
The electric tap of the first of conductive measurement layer and the second electric tap are disposed on the relative side of measurement layer.It is possible thereby to
Realize and be particularly with the cornerwise voltage measurement of conductive measurement layer, the voltage measurement in the case of conductive measurement layer using only
Only one material layer realizes that more accurately electric current is determined.
Conductive measurement layer includes the second material layer with the resistance related to temperature and the 3rd electric tap.It is possible thereby to borrow
Assistant director of a film or play's electrical measurement layer determines that other characteristics, such as temperature are determined, as long as second material layer has the temperature bigger than first material layer
Spend correlation.
The first material layer of conductive measurement layer is preferably arranged between two second material layers.Thus first material layer
It can not only be precisely adjusted on its basal plane but also on its material thickness.Thus by the Ohmic resistance of first material layer
Mutually coordinate with corresponding applicable cases.Less Ohmic resistance is favourable in terms of less heating.
According to being used for by the electric current that energy storage is flowed through according to the conductive measurement layer determination of the present invention for the present invention
Method comprises the following steps：The first potential difference between first electric tap and the second electric tap is measured by measuring unit, by institute
Discuss the electric current calculated and flow through energy storage between the potential difference of measurement and known temperature independent resistance.It is possible thereby to
The electric current of energy storage is flowed through with high accuracy computation in a straightforward manner.
It is further comprising the steps of according to the method for being used for the electric current that determination flows through energy storage of the present invention：Measurement measurement
Potential difference between the electric tap of the second of layer and the 3rd electric tap, comes by identified electric current and the second measured potential difference
Determine the current resistance of second material layer.
The temperature or measurement layer within measurement layer are determined by the estimator based on model and/or temperature resistance characteristic curve
Environment temperature.Thus according to first material layer determination, flowing the electric current and the second measured current potential by measurement layer
Poor temperature.Advantageously, by according to the present invention measurement layer and affiliated method can not only realize electric current determine but also
It can realize that temperature is determined.
Advantageously, it is used according to the measurement layer of the present invention in the battery module with multiple battery cells, wherein
In order to measure the voltage drop in measurement layer, a pole of measurement layer and battery module, with least one in battery cell and/
Or be conductively connected with least one conductive plate.Thus the electric current for being advantageously carried out being integrated into battery module is determined and/or temperature
Degree is determined.
Measurement layer is advantageously used in the battery module with multiple battery cells, and wherein battery cell includes
Lithium ion battery, lithium-sulfur cell, lithium-air battery.Thus it is advantageously the battery module with high energy density and realizes standard
True current measurement and/or temperature survey.
Brief description of the drawings
Embodiments of the invention are shown in the drawings and explained in detail in the following description.
Wherein：
Fig. 1 shows the nut shell formula battery module according to prior art；And
Fig. 2 shows one of the manufacture method of the battery module by nut shell formula battery cell according to prior art
Example；And
Fig. 3 shows series circuit and the parallel connection of the nut shell formula battery cell by Metal contacts according to prior art
One example of circuit；And
Fig. 4 shows the first application mode of the first embodiment of the measurement layer according to the present invention；And
Fig. 5 shows the second application mode of the first embodiment of the measurement layer according to the present invention；And
Fig. 6 shows the first embodiment of the measurement layer with a material layer；And
Fig. 7 shows the second embodiment of the measurement layer with two material layers；And
Fig. 8 shows the second embodiment of the measurement layer according to the present invention；And
Fig. 9 shows the 3rd embodiment of the measurement layer according to the present invention；And
Figure 10 shows the 4th embodiment of the measurement layer according to the present invention；And
Figure 11 shows the 5th embodiment of the measurement layer according to the present invention；And
Figure 12 shows the 6th embodiment of the measurement layer according to the present invention；And
Figure 13 shows to be applied to the series connection of nut shell formula battery cell according to the 7th embodiment of the measurement layer of the present invention
One example of circuit and parallel circuit.
Embodiment
Identical reference represents identical apparatus assembly in all figures.
Fig. 1 shows the nut shell formula battery module 10 according to prior art.The base of nut shell formula battery cell
Present principles are：One geometry side of nut shell formula battery cell（Or the part in face）On positive cell potential simultaneously
And the opposite side of battery cell is located on negative cell potential.Nut shell formula battery cell for example comprising coated or
Repeatedly stacking（Contact site, anode, electrolyte, negative electrode and contact site）Layer（Pole group）, the layer and nut shell formula battery
Battery cell housing contact in the inside of Battery pack.The upper side and lower side of battery cell housing is electrically insulated from each other.
Figure 1 illustrates two nut shell formula battery cells 100,101.By stacking S1 nut shell formula battery packs
Battery 100,101, negative cell potential 110 and the nut shell formula battery cell 101 of nut shell formula battery cell 100
Positive cell potential 111 contact.Consider for clarity, abandon that frame, contact site and voltage measurement are shown.
Fig. 2 shows the manufacture method of the battery module by nut shell formula battery cell according to prior art
One example.By stacking many nut shell formula battery cells 200 of S2（1）、200（2）、200（3）、200（n）To manufacture
Nut shell formula battery module 20（Shown in Fig. 2 right part）.In order to simplify contact, electrical connection contact site is provided with
220th, 230, wherein electrical contacts 230 for example with nut shell formula battery cell 200（1）Negative cell potential electrical connection,
And electrical contacts 220 for example with nut shell formula battery cell 200（n）Positive cell potential electrical connection.
Fig. 3 show according to the series circuit of the nut shell formula battery cell by Metal contacts of prior art and
One example of parallel circuit.By stacking many nut shell formula battery cells 300 of S3（1）、300（2）、300（3）、300
（5）、300（n）With insertion electrical contacts 320（1）、320（m）, such as metal conductor plate and/or conductive film, formed outside nut
Shell-type battery module 30.According to electrical contacts 320（1）、320（m）, nut shell formula battery cell 300（1）、300（2）、
300（3）、300（5）、300（n）Series connection and/or parallel connection.
Fig. 4 shows the first application mode of the first embodiment of the measurement layer according to the present invention.In Fig. 4 right part
In the nut shell formula battery module 40 that shows by stacking S4 nut shell formulas battery cell 400（1）、400（2）、400
（3）、400（n）And formed according to the first embodiment of the measurement layer 440 of the present invention.By stacking S4, nut shell formula
Battery cell 400（1）、400（2）、400（3）、400（n）It is electrical contact with each other, wherein in two nut shell formula battery pack electricity
Realize and make electrical contact with by measurement layer 440 between pond.Current path between electrical contacts 420,430 is closure.According to this hair
Implement the bright individual layer of measurement layer 440, therefore only there is a material layer.Figure 4 illustrates in nut shell formula battery
The installation site of the middle of group module 40 is exemplary, in two other nut shell formula battery cells 400（1）、400
（2）、400（3）、400（n）Between arrangement be equally possible.
Fig. 5 shows the second application mode of the first embodiment of the measurement layer according to the present invention.Figure 5 illustrates heavily fortified point
Fruit shell type battery module 50 includes multiple nut shell formula battery cells 500 being electrical contact with each other（1）、500（2）、500
（3）、500（n）.Nut shell formula battery cell 500 is disposed according to the measurement layer 540 of the present invention（n）And electrical contacts
Between 520.Current path between electrical contacts 530 and electrical contacts 520 is closure.In the second shown application mode
In, in nut shell formula battery cell 500（n）Between electrical contacts 520 voltage measurement is carried out by measurement layer 540.Survey
The embodiment for measuring layer 540 is individual layer, and therefore only has a material layer.
Fig. 6 shows the first embodiment of the measurement layer with a material layer.Measurement layer 640 includes a material layer
641.For example by the electric current shown in current flowing direction 650 when flowing through measurement layer 640 base in the entire surface of measurement layer 640
It is evenly distributed on this.The material layer 641 of measurement layer 640 has ratio resistance, and the ratio resistance is substantially dependent on material layer 641
Selected material.
Fig. 7 shows the second embodiment of the measurement layer according to the present invention with two material layers.According to the present invention's
Measurement layer 740 includes three material layers 741,742,743 in shown second embodiment.Conductive material layer 742 is excellent
Selection of land is included such as the material of constantan, semiconductor, metal alloy, metal and/or the conductive plastics of doping etc.Material layer 742
Resistance is known and selects material so that running temperature does not only significantly affect resistance in whole service scope.Material
The bed of material 741,743 includes conductive material, and the conductive material has the resistance relevant with temperature.
Determine to run in the following manner using the electric current of measurement layer 740, that is, measure the voltage drop in material layer 742（Go out
Abandon showing the voltage measurement tap in measurement layer 742 in clarity reason）, and by electronic installation, such as nut shell
Formula module controller detects the voltage drop.By formula I=U/R by measured voltage drop and known resistance calculations electric current.
Be defined below operation using the temperature of measurement layer 740, that is, measure the voltage that declines in material layer 741,743 and
The temperature of material layer 741,743 is determined using the electric current calculated is determined by the electric current.By voltage drop and the institute of material layer 742
The electric current of calculating determines Ohmic resistance, and the Ohmic resistance causes distributed temperature in one of subsequent calculation procedure.Temperature
Degree determines to support by analyzing the estimator based on model in electronic installation.Temperature resistance characteristic curve can be stored
In so-called lookup table in the software of analysis electronic installation.
Fig. 8 shows the second embodiment of the measurement layer according to the present invention.Measurement layer 840 includes material layer 841 and the
The one electric electric tap 860 of tap 850 and second.It is possible thereby to realize the voltage between the first electric electric tap 860 of tap 850 and second
Measurement.By the way that the first electric electric tap 860 of tap 850 and second is arranged on the opposite side of material layer 841, for measurement layer
Small structure space is needed for 840.
Fig. 9 shows the 3rd embodiment of the measurement layer according to the present invention.Measurement layer 940 include three material layers 941,
942nd, 943 and the first electric electric tap 960 of tap 950 and second.Measurement layer 941 and 943 is for example with the electricity relevant with temperature
Resistance, thus can realize that temperature is determined by measurement layer 940.Material layer 942 has substantially temperature independent resistance.
Determine to run in the following manner using the electric current of measurement layer 940, that is, measure the voltage drop in material layer 942（Go out
Abandon showing the voltage measurement tap in measurement layer 942 in clarity reason）, and by electronic installation, such as nut shell
Formula module controller detects the voltage drop.By formula I=U/R by measured voltage drop and known resistance calculations electric current.
Determine to run in the following manner using the temperature of measurement layer 940, that is, measure what is declined in material layer 941,943
Voltage and determine that the electric current calculated determines the temperature of material layer 941,943 using by the electric current.By voltage drop and material
The electric current calculated of layer 942 determines Ohmic resistance, and the Ohmic resistance causes distributed temperature in subsequent calculation procedure
Degree.
Figure 10 shows the 4th embodiment of the measurement layer according to the present invention.Measurement layer 1040 include material layer 1041 and
The first electric electric tap 1060 of tap 1050 and second.The first electric electric tap 1060 of tap 1050 and second is arranged in by diagonal
On the relative side of measurement layer.Thus the cloth compared to off-diagonal particularly can be realized in the case of the measurement layer of individual layer
The more accurately voltage measurement put.
Figure 11 shows the 5th embodiment of the measurement layer according to the present invention.Measurement layer 1140 includes first material layer
1141st, the material layer 1143 of second material layer 1142 and the 3rd.The first electric electric tap 1160 of tap 1150 and second is by diagonal
Ground is arranged on the relative side of measurement layer.It is possible thereby to realize more accurately electric current determination.Due to three layers of measurement layer 1140
Structure, can not only realize that electric current determines but also can realize that temperature is determined by measurement layer 1140.
Determine to run in the following manner using the electric current of measurement layer 1140, that is, measure the voltage drop in material layer 1142
（Abandon showing the voltage measurement tap in measurement layer 1142 for clarity reason）, and by electronic installation, such as nut
Shell type module controller detects the voltage drop.By formula I=U/R by measured voltage drop and known resistance calculations electricity
Stream.
Operation is defined below using the temperature of measurement layer 1140, that is, measures the voltage declined in material layer 1141,1143
And determine the temperature of material layer 1141,1143 using the electric current calculated is determined by the electric current.By voltage drop and material layer
1142 electric current calculated determines Ohmic resistance, and the Ohmic resistance causes distributed temperature in subsequent calculation procedure
Degree.
Figure 12 shows the 6th embodiment of the measurement layer according to the present invention.Measurement layer 1240 includes three material layers
1241st, the 1242,1243 and first electric electric tap 1260 of tap 1250 and second.Material layer 1242 includes three material areas.
First area 1242（1）Including the first conductive material and by nonconducting region 1242（2）With nonconducting region 1242（3）
Surround.Measurement layer 1240 also includes the first electric electric tap 1260 of tap 1250 and second.Material layer 1241 and 1243 is non-conductive
's.Material area 1242（1）Ohmic resistance can be coordinated in a kind of applicable cases because material area 1242（1）Can
To be adjusted in its size and on its thickness.The Ohmic resistance should be located in region below, and electricity is measured in this region
Pressure is sufficiently large, but not by forming heating source by electric current.
Figure 13 shows to be applied to nut shell formula battery cell according to the 7th embodiment of the measurement layer of the present invention
One example of series circuit and parallel circuit.Nut shell formula battery module 1330 includes multiple nut shell formula battery packs
Battery 1300（1）、1300（2）、1300（3）、1300（5）、1300（n-1）、1300（n）, the nut shell formula battery pack electricity
Pond is by electrical contacts 1320（1）、1320（m）It is electrically connected to each other.According to the 7th embodiment of the measurement layer 1340 of the present invention
It is disposed in electrical contacts 1320（m）With nut shell formula battery cell 1300（n）、1300（n-1）Between and with it is described
Electrical contacts 1320（m）With nut shell formula battery cell 1300（n）、1300（n-1）Electrical connection.Measurement layer 1340 includes three
Individual material layer 1341,1342,1343.Material layer 1341,1343 is configured to the electrical contacts with very little resistance.By material
Layer 1342 measures the potential difference between the electric tap 1350,1360 of measurement layer 1340, and material layer 1342 has temperature independent
Resistance.Determine to flow through the electric current of measurement layer 1340 by measured potential difference.
In a kind of alternative embodiment, nut shell formula battery module 1330 is also wrapped in addition to measurement layer 1340
Include another according to the present invention the measurement layer with least one material layer, at least one described material layer with temperature without
The resistance of pass, is determined wherein the electric current determined by measurement layer 1340 is used for temperature.
The embodiment that is shown in the drawings is not limited to according to the implementation of the measurement layer of the present invention and application, but can be to appoint
Meaning combines to implement.Particularly performed at least one nut shell formula battery module at least one electric current determine and/or
At least one temperature is determined.
Nut shell formula battery module is shown schematically in the figures, and wiring is abandoned for clarity reason.
The detailed implementation of the design of electric tap is equally abandoned for clarity reason.Electric tap can be with not Tongfang
Formula realizes, such as, as being welded to connect, extrudes contact site, bolt connection, soldered connection and engage and/or clamp.According to
The measurement layer of the present invention may be implemented as plate, film, thin layer, flexible pad and/or the semiconductor wafer being stamped.
In addition, being possible according to application of the measurement layer of the present invention within nut shell formula battery cell.
Claims (10)
1. for measuring measurement layer（440、540、640、740、840、940、1040、1140、1240）The first electric tap（850、
950、1050、1150、1250）With at least one the second electric tap（860、960、1060、1160、1260）Between potential difference
Conductive measurement layer（440、540、640、740、840、940、1040、1140、1240）, wherein measurement layer（440、540、640、
740、840、940、1040、1140、1240）With at least one material layer（641、742、841、942、1041、1142、1242
（1））, the material layer is with substantially temperature independent resistance.
2. conductive measurement layer according to claim 1（440、540、640、740、840、940、1040、1140、
1240）, it is characterised in that measurement layer（440、540、640、740、840、940、1040、1140、1240）First material layer
（641、742、841、942、1041、1142、1242（1））At least in part by constantan, the semiconductor of doping, metal alloy, gold
Category and/or conductive plastics are constituted.
3. the conductive measurement layer according to one of preceding claims（440、540、640、740、840、940、1040、
1140、1240）, it is characterised in that the first electric tap（850、950、1050、1150、1250）With the second electric tap（860、960、
1060、1160、1260）It is disposed in measurement layer（440、540、640、740、840、940、1040、1140、1240）It is relative
On side.
4. the conductive measurement layer according to one of preceding claims（440、540、640、740、840、940、1040、
1140、1240）, it is characterised in that the measurement layer（440、540、640、740、840、940、1040、1140、1240）Including
At least one second material layer（741、743、941、943、1141、1143、1242（2）、1242（3））With the 3rd electric tap, institute
At least one second material layer is stated with the resistance relevant with temperature.
5. the conductive measurement layer according to one of preceding claims（440、540、640、740、840、940、1040、
1140、1240）, it is characterised in that first material layer（641、742、841、942、1041、1142、1242（1））Be disposed in
Few two second material layers（741、743、941、943、1141、1143、1242（2）、1242（3））Between.
6. for by the conductive measurement layer according to one of claim 1 to 5（440、540、640、740、840、940、
1040、1140、1240）It is determined that flowing through the method for the electric current of energy storage, it is characterised in that the first electric tap（850、950、
1050、1150、1250）With the second electric tap（860、960、1060、1160、1260）Between the first potential difference pass through and measure single
Member measures and flows through electric energy from the business of measured potential difference and the resistance to calculate by temperature independent resistance
The electric current of memory.
7. method according to claim 6, wherein measuring measurement layer（440、540、640、740、840、940、1040、
1140、1240）The second electric tap（860、960、1060、1160、1260）And the 3rd the second potential difference between electric tap is simultaneously
And determine second material layer by identified electric current and the second measured potential difference（741、743、941、943、1141、
1143、1242（2）、1242（3））Current resistance.
8. method according to claim 7, wherein by the estimator based on model and/or temperature resistance characteristic curve come
Temperature.
9. the measurement layer according to one of claim 1 to 5（440、540、640、740、840、940、1040、1140、
1240）With multiple battery cells（1300（1）、1300（2）、1300（3）、1300（5）、1300（n-1）、1300（n））
Battery module（1330）In application, wherein for measuring measurement layer（440、540、640、740、840、940、1040、
1140、1240）On voltage drop measurement layer（440、540、640、740、840、940、1040、1140、1240）With battery pack
Module（1330）A pole, with the battery cell（1300（1）、1300（2）、1300（3）、1300（5）、1300（n-1）、
1300（n））In at least one and/or with least one conductive plate（1320（1）、1320（2））It is conductively connected.
10. measurement layer according to claim 9（440、540、640、740、840、940、1040、1140、1240）Should
With wherein the battery cell（1300（1）、1300（2）、1300（3）、1300（5）、1300（n-1）、1300（n））Including
Lithium ion battery, lithium-sulfur cell, lithium-air battery.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015226665.6A DE102015226665A1 (en) | 2015-12-23 | 2015-12-23 | Electrically conductive measuring layer for measuring a potential difference |
| DE102015226665.6 | 2015-12-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106981680A true CN106981680A (en) | 2017-07-25 |
| CN106981680B CN106981680B (en) | 2021-12-31 |
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| Publication number | Publication date |
|---|---|
| DE102015226665A1 (en) | 2017-06-29 |
| CN106981680B (en) | 2021-12-31 |
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