A sensor for measuring a level of a conductive liquid, is provided. The sensor includes at least two electrodes that can be positioned in a holding tank so as to be partially submerged in the conductive liquid, sensor leads coupled to the at least two electrodes, and circuitry and a controller for d
A sensor for measuring a level of a conductive liquid, is provided. The sensor includes at least two electrodes that can be positioned in a holding tank so as to be partially submerged in the conductive liquid, sensor leads coupled to the at least two electrodes, and circuitry and a controller for determining the properties of the electrolyte, the circuitry being coupled to the at least two electrodes via the sensor leads, and the controller being coupled to the circuitry. The sensor may be used as an electrolyte level sensor in a flow battery system.
대표청구항▼
1. A flow battery, comprising: a first holding tank for holding a first conductive electrolyte;a second holding tank for holding a second conductive electrolyte;at least one cell through which the first conductive electrolyte and the second conductive electrolyte are flowed;a first level sensor posi
1. A flow battery, comprising: a first holding tank for holding a first conductive electrolyte;a second holding tank for holding a second conductive electrolyte;at least one cell through which the first conductive electrolyte and the second conductive electrolyte are flowed;a first level sensor positioned in the first holding tank;a second level sensor positioned in the second holding tank and decoupled from the first level sensor, wherein said first and second level sensors are arranged such that there is no potential for cross-talk between the first and second level sensors; andcircuitry coupled to the first level sensor and the second level sensor to alternatingly determine a liquid level in each of the first holding tank and the second holding tank, wherein the first level sensor and the second level sensor each comprise: at least two electrodes, the two electrodes being positioned in the holding tank; andsensor leads that couple the at least two electrodes to the circuit. 2. The battery of claim 1, wherein the circuitry provides an alternating current (AC) voltage to the electrodes of the first fluid level sensor and/or the second fluid level sensor. 3. The battery of claim 1, wherein the AC voltage is provided with a frequency greater than about 80 Hz and less than about 200 KHz. 4. The battery of claim 1, wherein the electrodes of the first fluid level sensor and the electrodes of the second fluid level sensor are capacitively or inductively isolated from the circuitry such that a voltage in the conductive liquid does not affect the circuitry. 5. The battery of claim 1, further comprising: a first temperature sensor thermally coupled to the first conductive electrolyte in the first holding tank;a second temperature sensor thermally coupled to the second conductive electrolyte in the second holding tank; anda controller, wherein the controller is coupled to the first temperature sensor, the second temperature sensor and the circuitry and adjusts the determined liquid level based upon data from the first temperature sensor and/or the second temperature sensor. 6. The battery of claim 1, wherein the electrodes of the first level sensor and the electrodes of the second level sensor are formed from a material comprising carbon-loaded polyethylene, and are coupled to the sensor leads by a conductive wire coupled to end portions of the electrodes. 7. A flow battery, comprising: at least one holding tank for holding a conductive electrolyte;at least one cell through which the conductive electrolyte is flowed;at least one liquid level sensor positioned in the tank, the at least one liquid level sensor comprising: at least two electrodes that are immersed during use along an immersed portion of their length in the conductive electrolyte, the conductive electrolyte electrically coupling at least two electrodes along the immersed portion of their length;a housing, the housing comprising: a first adapter having a first end and a second end, the first end being coupled to an outer structure of the housing, and the second end being coupled to a hollow cup structure;a potting material received by the hollow cup structure;an end adapter coupled to an inner structure of the housing, the inner structure extending through the potting material; andthe outer structure and the inner structure, a gap being between the outer structure and the inner structure, the outer and inner structures comprising:a first set of venting holes formed in a first portion of the outer and inner structures; anda second set of venting holes formed in a second portion of the outer and inner structures, wherein:the first set of venting holes allows the liquid to flow through the outer structure, the inner structure, and the gap; andthe second set of venting holes allows gas to flow through the outer structure, the inner structure, and the gap; anda sensor circuit coupled to at least one liquid level sensor, whereinthe sensor circuit determines the length of the non-immersed portion of the immersed electrodes, wherein the length of the non-immersed portion of the immersed electrode is used by the sensor circuit to determine a liquid level in at least one holding tank. 8. The flow battery of claim 7, further comprising: at least two grooves formed on a peripheral surface of the inner structure along a length of the peripheral surface, wherein each of the at least two electrodes are formed to securely fit in one of the at least two grooves. 9. The battery of claim 7, wherein a resistance per unit length of one or more of the electrodes is greater than a resistance per unit depth of the conductive liquid. 10. The battery of claim 7, wherein the sensor circuit provides an alternating current (AC) voltage to the at least two electrodes. 11. The battery of claim 10, wherein the AC voltage is provided with a frequency greater than about 80 Hz and less than about 200 KHz. 12. The battery of claim 10, wherein the length of the non-immersed portion of the immersed electrodes is calculated from a measured current of the immersed electrodes during use. 13. The battery of claim 10, wherein the immersed electrodes are capacitively or inductively isolated from the sensor circuit such that a voltage in the conductive electrolyte does not affect the circuitry. 14. The battery of claim 10, further comprising: at least one temperature sensor thermally coupled to the conductive electrolyte; anda controller, wherein the controller is coupled to the at least one temperature sensor and the sensor circuit and adjusts the calculation of the level of the conductive electrolyte based upon a temperature sensed by at least one temperature sensor. 15. The battery of claim 7, further comprising a temperature sensor extending through the inner structure and being coupled to the end adapter. 16. The battery of claim 7, wherein at least one of the electrodes is formed from a material comprising carbon-loaded polyethylene, and is coupled to sensor leads by a conductive wire coupled to end portions of the electrode. 17. A battery, comprising: a first holding tank adapted to hold a first conductive electrolyte;a second holding tank adapted to hold a second conductive electrolyte;at least one cell through which the first and second conductive electrolytes are flowed;a first level sensor positioned in the first holding tank;a second level sensor positioned in the second holding tank and decoupled from the first level sensor such that there is no potential for cross-talk between the second level sensor and the first level sensor; andcircuitry coupled to the first level sensor and the second level sensor, said circuitry being adapted to facilitate determining a liquid level in each of the first and second holding tanks. 18. The battery of claim 17, wherein said second level sensor operates at a frequency that is different than the operating frequency of said first level sensor. 19. The battery of claim 17, wherein said circuitry is arranged to read only one of said first and second level sensors at a time. 20. The battery of claim 17, wherein said circuitry comprises a single circuit. 21. The battery of claim 17, wherein at least one of said first level sensor and said second level sensor includes a plurality of electrodes. 22. The battery of claim 21, wherein at least one of said plurality of electrodes is partially immersed in one of said first and second electrolytes. 23. The battery of claim 22, wherein a resistance per unit length of said at least one electrode is greater than a resistance per unit depth of its respective first or second electrolyte. 24. The battery of claim 22, wherein the length of the non-immersed portion of the immersed electrode is used to determine the liquid level for the one of said first and second electrolytes. 25. The battery of claim 17, wherein at least one of said plurality of electrodes is formed from a material comprising carbon-loaded polyethylene. 26. The battery of claim 17, further comprising: at least one temperature sensor thermally coupled to at least one of said first and second holding tanks and adapted to provide data to facilitate the determining of the liquid level in the at least one of said first and second holding tanks.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (60)
Shimizu Masayuki (Osaka JPX) Sakamoto Tatsuhiko (Osaka JPX) Shigematsu Toshio (Osaka JPX), Apparatus and method for regenerating electrolyte of a redox flow battery.
Downing Robert W. (Fort Wayne IN) Conte Donald V. (Fort Wayne IN) Ramon David (Columbia City IN), Automatic voltage control system and method for forced electrolyte flow batteries.
Remick Robert J. (Naperville IL) Ang Peter G. P. (Naperville IL), Electrically rechargeable anionically active reduction-oxidation electrical storage-supply system.
Inoue Makoto (Ohtsu JPX) Kobayashi Masaru (Ohtsu JPX), Electrode material for flow-through type electrolytic cell, wherein the electrode comprises carbonaceous material having.
Zhong Shihuang (Kensington AUX) Kazacos Michael (Sylvania Heights AUX) Kazacos Maria Skyllas (Sylvania AUX) Haddadi-Asl Vahid (Hillsdale AUX), Flexible, conducting plastic electrode and process for its preparation.
Kazacos,Michael; Kazacos,Maria Skyllas, High energy density vanadium electrolyte solutions, methods of preparation thereof and all-vanadium redox cells and batteries containing high energy vanadium electrolyte solutions.
Ito,Takefumi; Tokuda,Nobuyuki, Pressure fluctuation prevention tank structure, electrolyte circulation type secondary battery, and redox flow type secondary battery.
Wakabayashi Ataru (Yokohama JPX) Umehara Yohichi (Yokohama JPX) Morie Satsuki (Kawasaki JPX) Kuwahara Ikuro (Kawasaki JPX) Okada Yoshimi (Yokohama JPX), Process for the preparation of redox battery electrolyte and recovery of lead chloride.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.