GB2539187A - Electrochemical device comprising a thermo-couple for measuring temperature distribution inside the device - Google Patents
Electrochemical device comprising a thermo-couple for measuring temperature distribution inside the device Download PDFInfo
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- GB2539187A GB2539187A GB1509690.2A GB201509690A GB2539187A GB 2539187 A GB2539187 A GB 2539187A GB 201509690 A GB201509690 A GB 201509690A GB 2539187 A GB2539187 A GB 2539187A
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- thermo
- elements
- electrochemical device
- thermocouple
- temperature measuring
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- 238000009826 distribution Methods 0.000 title claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 41
- 239000000446 fuel Substances 0.000 claims abstract description 12
- 230000005678 Seebeck effect Effects 0.000 description 6
- 238000009529 body temperature measurement Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 229910000809 Alumel Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910001179 chromel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012883 sequential measurement Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- 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
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
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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
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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
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/0432—Temperature; Ambient temperature
- H01M8/04365—Temperature; Ambient temperature of other components of a fuel cell or fuel cell stacks
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/80—Constructional details
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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
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M2008/1293—Fuel cells with solid oxide electrolytes
-
- 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
- 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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
An electrochemical device 10, such as a fuel cell or a battery, comprises a thermocouple 18 for measuring temperature distribution inside the device. The thermocouple 18 comprises a plurality of first thermo-elements 1, 2, 3 formed of one or more first materials and a plurality of second thermo-elements 4, 5, 6 formed of one or more second materials which differ from the first material(s). The thermocouple 18 comprises an array of independent temperature measuring junctions J1 to J9 each of which is defined by the intersection of one of the first and second thermo-elements, and each of the first thermo-elements 1, 2, 3 intersects each of the second thermo-elements 4, 5, 6 to form at least two temperature measuring junctions inside the electrochemical device 10. The plurality of first thermo-elements and the plurality of second thermo-elements may be arranged in electrical contact with an electrode of the electrochemical device
Description
ELECTROCHEMICAL DEVICE COMPRISING A THERMOCOUPLE FOR MEASURING TEMPERATURE DISTRIBUTION INSIDE THE DEVICE
Technical Field
The present disclosure relates generally to the measurement of temperature distribution inside an electrochemical device such as a fuel cell or a battery. More particularly, embodiments of the present disclosure provide an electrochemical device comprising a thermocouple for measuring temperature distribution inside the device.
Technical Background
Thermocouples are used extensively for temperature measurement in a wide variety of applications, including electrochemical devices such as fuel cells and batteries. A standard thermocouple uses two thermo-elements, such as wires, whose proximal ends meet at a temperature measuring junction to enable measurement of the temperature at that junction. The thermo-elements are formed of dissimilar materials so that a voltage difference can be measured between the distal ends of the thermoelements by exploiting the Seebeck effect, which arises due to the temperature difference between the proximal end and the distal end of each thermo-element. The voltage difference is indicative of the temperature at the temperature measuring junction, so the temperature can be determined based on the measured voltage difference.
In order to properly characterise the reactions in an electrochemical device such as a fuel cell or battery and thereby monitor the performance of the electrochemical device, it is desirable to measure temperatures at several locations (to provide a temperature distribution or temperature profile) and this can be achieved by providing several temperature measuring junctions. The temperature at each junction is measured as described above using two thermo-elements formed of dissimilar materials, meaning that temperature measurement at two junctions requires four thermo-elements, at three junctions requires six thermo-elements, etc. In an electrochemical device, space constraints may, however, limit the number of thermo-elements that can be used. As a result, it may not be possible to adequately measure the temperature distribution inside an electrochemical device.
There is, therefore, a need for an electrochemical device comprising a thermocouple which enables the temperature distribution inside the device to be adequately measured, so that the performance of the device can be satisfactorily monitored.
Summary of the Disclosure
According to a first aspect of the present disclosure, there is provided an electrochemical device comprising a thermocouple for measuring temperature distribution inside the device; the thermocouple comprising a plurality of first thermo-elements formed of one or more first materials and a plurality of second thermo-elements formed of one or more second materials which differ from the first material(s); the thermocouple comprising an array of independent temperature measuring junctions each of which is defined by the intersection of one of the first and second thermo-elements; wherein each of the first thermo-elements intersects each of the second thermo-elements to form at least two temperature measuring junctions.
The arrangement of the first and second thermo-elements to provide multiple temperature measuring junctions enables the temperature distribution inside the electrochemical device to be measured using fewer thermo-elements than would be needed if a conventional thermocouple (requiring two thermo-elements for each temperature measuring junction) was employed. The space required to implement the thermocouple is, thus, reduced. This means, for example, that a larger number of temperature measuring junctions can be provided inside the electrochemical device thus enabling the electrochemical reactions inside the device, and hence the performance of the device, to be more readily characterised.
The electrochemical device may be a fuel cell, such as a solid oxide fuel cell (SOFC), or may a battery. -3
The plurality of first thermo-elements and the plurality of second thermo-elements may be arranged in electrical contact with an electrode (e.g. anode and/or cathode) of the electrochemical device. In one embodiment, the first and second thermo-elements may be deposited on an electrode of the electrochemical device. In another embodiment, the first and second thermo-elements may be formed as a mesh which is arranged in electrical contact with an electrode of the electrochemical device. In the case of a fuel cell for example, one or more of the first thermo-elements and/or one or more of the second thermo-elements can act as a current collector and permit current collection from the electrode. With this arrangement, the construction of the electrochemical device is simplified because temperature measurement and current collection are achieved using the first and second thermo-elements and a separate current collector does not need to be provided.
In one embodiment, the number of temperature measuring junctions is N2 and the total number of first and second thermo-elements 2N. This arrangement provides the maximum reduction in the number of thermo-elements needed to provide N2 temperature measuring junctions as compared to a conventional thermocouple requiring two thermo-elements for each temperature measuring junction.
In another embodiment, the number of temperature measuring junctions is N2 and the total number of first and second thermo-elements is less than 2N2.
The plurality of first thermo-elements may be parallel and aligned in a first direction.
The plurality of second thereto-elements may be parallel and aligned in a second direction. The first and second directions may be substantially perpendicular to each other and the plurality of first and second thermo-elements may intersect to form a grid or lattice.
The plurality of first thereto-elements may all be formed of the same first material.
Alternatively or in addition, the plurality of second thermo-elements may all be formed of the same second material. An arrangement in which the first thermo-elements are formed of the same first material and in which the second thermoelements are formed of the same second material is the most straightforward, requiring the use of only two different materials to form the thermo-elements.
Each of the plurality of first and second thermo-elements may include a distal end.
The distal ends may be spaced apart and may be at a common reference temperature. This is necessary to enable the temperatures at the temperature measuring junctions to be determined by measuring a voltage difference between selected pairs of distal ends, i.e., by exploiting the Seebeck effect. The distal ends of the plurality of first and second thermo-elements may be arranged in an isothermal region. In some embodiments, the isothermal region may be temperature-controlled to maintain a predetermined reference temperature.
The distal ends of the first and second thermo-elements may be connected to a voltage sensing device, for example a voltage sensing circuit, which may be arranged to measure the voltage difference between the distal ends of selected pairs of first and second thermo-elements and thereby enable the temperature to be determined at corresponding selected temperature measuring junctions, by exploiting the Seebeck effect.
The voltage sensing device may be configured to simultaneously measure a plurality of voltage differences. This arrangement permits the temperatures at several temperature measuring junctions to be determined simultaneously.
The distal ends of the first and second thermo-elements could be connected to the voltage sensing device via a switching device. With this arrangement, the voltage sensing device sequentially measures the voltage difference between the distal ends of selected pairs of first and second thermo-elements and thereby provides for sequential, rather than simultaneous, temperature measurement at the corresponding selected temperature measuring junctions. Any suitable switching device can be used, for example an electronic switching device, such as a multiplexer or a solid-state relay, or an electrical switching device, such as a mechanical relay.
The first and second thermo-elements may comprise wires or may be fabricated by a thin or thick film technique. Suitable fabrication techniques include, but are not limited to, sputter deposition, spot welding, 3D printing (or additive manufacturing), and tape casting.
According to a second aspect of the present disclosure, there is provided an electrochemical device comprising a thermocouple for measuring temperature distribution inside the device; the thermocouple comprising a plurality of first thermo-elements formed of one or more first materials and a plurality of second thermo-elements formed of one or more second materials which differ from the first material(s); the thermocouple comprising an array of independent temperature measuring junctions each of which is defined by the intersection of one of the first and second 15 thermo-elements; wherein the first thermo-elements intersect the second thermo-elements to form at least two temperature measuring junctions and the plurality of first thermoelements and the plurality of second thermo-elements are arranged in electrical contact with an electrode of the electrochemical device.
The electrochemical device according to the second aspect may include one or more of the features defined above.
Brief Description of the Drawings
Figure 1 is a diagrammatic representation of one implementation of an electrochemical device according to the present disclosure comprising a first embodiment of a thermocouple; and Figure 2 is a diagrammatic representation of a second embodiment of a thermocouple for use with the electrochemical device of Figure 1.
Detailed Description of Embodiments
Embodiments of the present disclosure will now be described by way of example only and with reference to the accompanying drawings.
Figure 1 illustrates an electrochemical device 10 in the form of a solid oxide fuel cell (SOFC) comprising an electrolyte 12 positioned between a first electrode 14 (which may be an anode or a cathode) and a second electrode 16 (which may also be an anode or a cathode). The electrochemical device 10 further comprises a thermocouple 18 for measuring the temperature distribution inside the electrochemical device 10.
The thermocouple 18 comprises a plurality of first thermo-elements 1, 2, 3 and a plurality of second thermo-elements 4, 5, 6. The first thermo-elements 1, 2, 3 are all formed of the same first material which is represented in Figure 1 by the use of dotted lines. The second thermo-elements 4, 5, 6 are all formed of the same second material which is represented in Figure 1 by the use of solid lines. The first and second materials differ from each other so that at the points of intersection of the first and second thermo-elements, independent temperature measuring junctions Ji to J9 are formed at which the temperature can be determined by exploiting the Seebeck effect.
The thermocouple 18 may be a K-type thermocouple, for example in which the first thermo-elements 1, 2, 3 comprise chromel and the second thermo-elements 4, 5, 6 comprise alumel, or vice-versa. The thermocouple 18 could, however, be a different type and any suitable combination of materials could be used to fabricate the first and second thermo-elements provided that each temperature measuring junction Ji to J9 is formed by the intersection of two different materials.
The first thermo-elements 1, 2, 3 are arranged to be parallel to each other and are aligned in a first direction. The second thermo-elements 4, 5, 6 are similarly arranged to be parallel to each other and are aligned in a second direction which is perpendicular to the first direction. The first and second thermo-elements are, thus, arranged to form a grid or lattice in which each of the first thermo-elements 1, 2, 3 intersects each of the second thermo-elements 4, 5, 6 to form an array of independent temperature measuring junctions Ji to J9.
In the embodiment of Figure 1, it will be seen that the thermocouple 18 comprises an array of nine independent temperature measuring junctions J1 to Jy at the points of intersection of the first and second thermo-elements. The temperature at a temperature measuring junction can be determined by virtue of the Seebeck effect by measuring the voltage difference, using a voltage sensing device, between the distal ends of a selected pair of thermo-elements. For example: the temperature at junction Ji can be determined by measuring the voltage difference between the distal ends of the first thermo-element labelled '3' and the second thermo-element labelled '6'; the temperature at junction Jo can be determined by measuring the voltage difference between the distal ends of the first thermo-element labelled '1' and the second thereto-element labelled '5'; and the temperature at junction J8 can be determined by measuring the voltage difference between the distal ends of the first thereto-element labelled '2' and the second them-to-element labelled '4'.
Thus, the present disclosure enables the temperature distribution or temperature profile to be measured over a surface inside the electrochemical device 10 using the minimum number of thermo-elements. If the thermocouple illustrated in Figure 1 was implemented using a conventional arrangement in which two thermo-elements formed of dissimilar materials were used to form each temperature measuring junction, it will be understood that eighteen thermo-elements would be needed to provide the nine temperature measuring junctions J1 to J9. The use of the grid/lattice structure thus enables a significant reduction in the number of thereto-elements to be realised.
In order to permit temperature measurement by exploiting the Seebeck effect, the distal ends of the first and second thermo-elements (between which voltage difference is measured) need to be positioned in an isothermal region and, although not apparent from Figure 1, this region will typically be located outside the electrochemical device 10. In addition, the temperature at the temperature measuring junctions Ji to Jy can be measured simultaneously or sequentially. If sequential measurement is preferred, a switching device can be used to sequentially select different terminals to which the distal ends of the first and second thermo-elements are connected, to allow the temperature to be determined sequentially between selected pairs of distal ends and, hence, at selected temperature measuring junctions Ji to J9.
The first thermo-elements 1, 2, 3, and the second thermo-elements 4, 5, 6 forming the thermocouple 18 are preferably arranged in electrical contact with an electrode 14, 16 of the electrochemical device 10. In the solid oxide fuel cell illustrated in Figure 1, the first and second thermo-elements forming the thermocouple 18 are arranged in electrical contact with the first electrode 14. Another thermocouple 18, having the same or a different grid arrangement and formed by a plurality of first and second thermo-elements, can alternatively or additionally be provided on the second electrode 16 of the electrochemical device 10. In one embodiment, the first and second thermo-elements are deposited directly on the surface of the first electrode 14 and/or the second electrode 16 during fabrication of the electrochemical device 10. In another embodiment, the first and second thermo-elements are arranged as a self-supporting mesh or grid which is removably positioned in electrical contact with the first and/or second electrode 14, 16.
The arrangement illustrated in Figure 1 is particularly advantageous because one or more of the first thermo-elements 1, 2, 3 and/or one or more of the second thermoelements 4, 5, 6 can be used to collect current from the first electrode 14 (and/or the second electrode 16 if a thermocouple 18 is provided in electrical contact with the second electrode 16). Thus, in the case of a fuel cell for example, a separate current collector does not need to be provided enabling a simplified structure to be achieved.
In preferred embodiments such as that illustrated in Figure 1, the number of temperature measuring junctions is N2 and the total number of first and second thermo-elements is 2N. This arrangement provides the maximum reduction in the number of thermo-elements that are needed to provide N2 temperature measuring junctions as compared to a conventional thermocouple using two thermo-elements to form each temperature measuring junction.
Figure 2 illustrates an alternative embodiment of a thermocouple 118 for use with the electrochemical device 10 of Figure 1. In this alternative arrangement, it is seen that a different number of first and second thermo-elements can be used to provide an array of independent temperature measuring junctions Ji to Jo. In particular, the thermocouple 118 comprises two thermo-elements 1, 2 formed of the same first material which is represented in Figure 2 by dashed lines. The thermocouple 118 further comprises three second thermo-elements 3, 4, 5 which are formed of the same second material which differs from the first material and which is represented by solid lines. In this arrangement, it will once again be seen that each of the first thermo-elements 1, 2, intersects each of the second thermo-elements 3, 4, 5 to form the array of six independent temperature measuring junctions Ji to Jo. It will, therefore, be understood from this alternative embodiment that it is not strictly necessary for the thermocouple according to the present disclosure to comprise N2 temperature measuring junctions, and that other arrangements are entirely within the scope of the
present disclosure.
Although exemplary embodiments have been described in the preceding paragraphs, it should be understood that various modifications may be made to those embodiments without departing from the scope of the appended claims. Thus, the breadth and scope of the claims should not be limited to the above-described exemplary embodiments. Each feature disclosed in the specification, including the claims and drawings, may be replaced by alternative features serving the same, equivalent or similar purposes, unless expressly stated otherwise.
Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like, are to be construed in an inclusive as opposed to an exclusive or exhaustive sense; that is to say, in the sense of "including, but not limited to".
-10 -Any combination of the above-described features in all possible variations thereof is encompassed by the present invention unless otherwise indicated herein or otherwise clearly contradicted by context.
Claims (14)
- Claims 1. An electrochemical device comprising a thermocouple for measuring temperature distribution inside the device; the thermocouple comprising a plurality of first thermo-elements formed of one or more first materials and a plurality of second thermo-elements formed of one or more second materials which differ from the first material(s); the thermocouple comprising an array of independent temperature measuring junctions each of which is defined by the intersection of one of the first and second thermo-elements; wherein each of the first thermo-elements intersects each of the second thermo-elements to form at least two temperature measuring junctions.
- 2. An electrochemical device according to claim I, wherein the plurality of first thermo-elements and the plurality of second thermo-elements are arranged in electrical contact with an electrode of the electrochemical device to permit current collection from the electrode using one or more of the first thermo-elements and/or one or more of the second thermo-elements.
- 3. An electrochemical device according to claim 2, wherein the first and second thermo-elements are deposited on an electrode of the electrochemical device.
- 4. An electrochemical device according to claim 2, wherein the first and second thermo-elements are formed as a mesh which is arranged in electrical contact with an electrode of the electrochemical device.
- 5. An electrochemical device according to any preceding claim, wherein the number of temperature measuring junctions is N2 and the total number of first and second thermo-elements is 2N.
- 6. An electrochemical device according to any of claims I to 4, wherein the number of temperature measuring junctions is N2 and the total number of first and second thermo-elements is less than 2N2.-12 -
- 7. An electrochemical device according to any preceding claim, wherein the plurality of first thermo-elements are parallel and aligned in a first direction and the plurality of second thermo-elements are parallel and aligned in a second direction such that the plurality of first and second thermo-elements intersect to form a grid.
- 8. An electrochemical device according to claim 7, wherein the first and second directions are substantially perpendicular to each other.
- 9. An electrochemical device according to any preceding claim, wherein the plurality of first thermo-elements are all formed of the same first material.
- 10. An electrochemical device according to any preceding claim, wherein the plurality of second thermo-elements are all formed of the same second material.
- 11. An electrochemical device according to any preceding claim, wherein the electrochemical device is selected from the group consisting of a fuel cell and a battery.
- 12. An electrochemical device comprising a thermocouple for measuring temperature distribution inside the device; the thermocouple comprising a plurality of first thermo-elements formed of one or more first materials and a plurality of second thermo-elements formed of one or more second materials which differ from the first material(s); the thermocouple comprising an array of independent temperature measuring junctions each of which is defined by the intersection of one of the lirst and second thermo-el ements; wherein the first thermo-elements intersect the second thermo-elements to form at least two temperature measuring junctions and the plurality of first thermo-elements and the plurality of second thermo-elements are arranged in electrical contact with an electrode of the electrochemical device.-
- 13 - 13. An electrochemical device according to claim H, comprising the features of any one or more of claims 3 to 11.
- 14. An electrochemical device substantially as hereinbefore described and/or as shown in the accompanying drawings.Amendments to the claims have been filed as follows: * ** * * * *** * * * * * 15 * ** * * * * ** * * Claims 1. An electrochemical device comprising a thermocouple for measuring temperature distribution inside the device; the thermocouple comprising a plurality of first thermo-elements formed of one or more first materials and a plurality of second thermo-elements formed of one or more second materials which differ from the first material(s); the thermocouple comprising an array of independent temperature measuring junctions each of which is defined by the intersection of one of the first and second thermo-elements; wherein each of the first thermo-elements intersects each of the second thenno-elements to form at least two temperature measuring junctions and the plurality of first thermo-elements and the plurality of second thermo-elements are arranged in electrical contact with an electrode of the electrochemical device.2. An electrochemical device according to claim 1, wherein the first and second thermo-elements are deposited on an electrode of the electrochemical device.3. An electrochemical device according to claim 1, wherein the first and second thermo-elements are formed as a mesh which is arranged in electrical contact with an electrode of the electrochemical device.4. An electrochemical device according to any preceding claim, wherein the plurality of first thermo-elements are parallel and aligned in a first direction and the plurality of second thermo-elements are parallel and aligned in a second direction such that the plurality of first and second thermo-elements intersect to form a grid.5. An electrochemical device according to claim 4, wherein the first and second directions are substantially perpendicular to each other.6. An electrochemical device according to any preceding claim, wherein the plurality of first thermo-elements are all formed of the same first material.7. An electrochemical device according to any preceding claim, wherein the plurality of second thermo-elements are all formed of the same second material.8. An electrochemical device according to any preceding claim, wherein the electrochemical device is selected from the group consisting of a fuel cell and a battery.9. An electrochemical device comprising a thermocouple for measuring temperature distribution inside the device; the thermocouple comprising a plurality of first thermo-elements formed of one or more first materials and a plurality of second thermo-elements formed of one * * ** * * or more second materials which differ from the first material(s); **** * the thermocouple comprising an array of independent temperature measuring * * junctions each of which is defined by the intersection of one of the first and second * * 15 thermo-elements; wherein the first thermo-elements intersect the second thermo-elements to * * * form at least two temperature measuring junctions and the plurality of first thereto-* * * ** * elements and the plurality of second thermo-elements are arranged in electrical * * contact with an electrode of the electrochemical device.10. An electrochemical device according to claim 9, comprising the features of any one or more of claims 2 to 8.11. An electrochemical device substantially as hereinbefore described and/or as shown in the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1509690.2A GB2539187B (en) | 2015-06-04 | 2015-06-04 | Electrochemical device comprising a thermocouple for measuring temperature distribution inside the device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1509690.2A GB2539187B (en) | 2015-06-04 | 2015-06-04 | Electrochemical device comprising a thermocouple for measuring temperature distribution inside the device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB201509690D0 GB201509690D0 (en) | 2015-07-22 |
| GB2539187A true GB2539187A (en) | 2016-12-14 |
| GB2539187B GB2539187B (en) | 2018-01-10 |
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| GB1509690.2A Expired - Fee Related GB2539187B (en) | 2015-06-04 | 2015-06-04 | Electrochemical device comprising a thermocouple for measuring temperature distribution inside the device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108474822A (en) * | 2017-08-25 | 2018-08-31 | 深圳市云中飞网络科技有限公司 | Terminal device and its cell safety monitoring method and monitoring system |
| WO2019013881A1 (en) * | 2017-07-11 | 2019-01-17 | Microsoft Technology Licensing, Llc | Mapping temperatures across a surface |
| US11522357B2 (en) | 2017-08-25 | 2022-12-06 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Terminal device, method for monitoring battery safety of terminal device |
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| JPS63193023A (en) * | 1987-02-06 | 1988-08-10 | Olympus Optical Co Ltd | Temperature measuring apparatus |
| GB2291197A (en) * | 1994-06-23 | 1996-01-17 | Alan Keith Wood | Two/three dimensional temperature sensor |
| JPH09223512A (en) * | 1996-02-16 | 1997-08-26 | Fuji Electric Co Ltd | Abnormality monitoring method of fuel cell and device therefor |
| JPH09245824A (en) * | 1996-03-11 | 1997-09-19 | Fuji Electric Co Ltd | Temperature abnormality detecting device of fuel cell |
| US5909004A (en) * | 1996-04-17 | 1999-06-01 | General Electric Company | Thermocouple array and method of fabrication |
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2015
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019013881A1 (en) * | 2017-07-11 | 2019-01-17 | Microsoft Technology Licensing, Llc | Mapping temperatures across a surface |
| US10935436B2 (en) | 2017-07-11 | 2021-03-02 | Microsoft Technology Licensing, Llc | Mapping temperatures across a surface |
| CN108474822A (en) * | 2017-08-25 | 2018-08-31 | 深圳市云中飞网络科技有限公司 | Terminal device and its cell safety monitoring method and monitoring system |
| EP3499631A4 (en) * | 2017-08-25 | 2019-10-09 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. Oppo | Terminal device and battery safety monitoring method and monitoring system therefor |
| JP2020520065A (en) * | 2017-08-25 | 2020-07-02 | オッポ広東移動通信有限公司Ｇｕａｎｇｄｏｎｇ Ｏｐｐｏ Ｍｏｂｉｌｅ Ｔｅｌｅｃｏｍｍｕｎｉｃａｔｉｏｎｓ Ｃｏｒｐ．， Ｌｔｄ． | Terminal device and its battery safety monitoring method and monitoring system |
| CN108474822B (en) * | 2017-08-25 | 2021-07-23 | Oppo广东移动通信有限公司 | Terminal equipment and battery safety monitoring method and monitoring system thereof |
| US11163008B2 (en) | 2017-08-25 | 2021-11-02 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Terminal device and method and system for monitoring battery safety of terminal device |
| US11522357B2 (en) | 2017-08-25 | 2022-12-06 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Terminal device, method for monitoring battery safety of terminal device |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2539187B (en) | 2018-01-10 |
| GB201509690D0 (en) | 2015-07-22 |
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