CA3146282A1 - Isolation a vide ajustable pour la gestion thermique d'une batterie - Google Patents
Isolation a vide ajustable pour la gestion thermique d'une batterieInfo
- Publication number
- CA3146282A1 CA3146282A1 CA3146282A CA3146282A CA3146282A1 CA 3146282 A1 CA3146282 A1 CA 3146282A1 CA 3146282 A CA3146282 A CA 3146282A CA 3146282 A CA3146282 A CA 3146282A CA 3146282 A1 CA3146282 A1 CA 3146282A1
- Authority
- CA
- Canada
- Prior art keywords
- battery
- gas
- ajustable
- vide
- pour
- 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.)
- Pending
Links
- 238000002955 isolation Methods 0.000 title 1
- 239000012212 insulator Substances 0.000 claims abstract 3
- 239000000203 mixture Substances 0.000 claims abstract 2
- 239000007789 gas Substances 0.000 claims description 7
- 238000009413 insulation Methods 0.000 abstract description 6
- 239000001307 helium Substances 0.000 description 4
- 229910052734 helium Inorganic materials 0.000 description 4
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- Sustainable Energy (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Secondary Cells (AREA)
Abstract
utilisé une pompe à vide pour faire varier la quantité de gaz dans un isolant microporeux pour contrôler passivement la température d'une batterie de véhicule de transport. Revendication : ajuster de façon variable un gaz ou mélange de gaz dans une protection en vase clos pour créer un isolant variable pour la gestion thermique d'une batterie.used a vacuum pump to vary the amount of gas in a microporous insulation to passively control the temperature of a transportation vehicle battery. Claim: To variably adjust a gas or gas mixture in a closed-cup protection to create a variable insulator for the thermal management of a battery.
Description
English: Adjustable vacuum insulation for battery thermal management Français : Isolation sous vide réglable pour la gestion thermique de la batterie Il s'agit d'un système de gestion thermique d'une batterie de propulsion dans un véhicule électrique. Lorsqu'une batterie au lithium ou autre chimie se décharge ou se recharge, elle produit de la chaleur due à la résistance interne de la batterie. Ces batteries ont besoin de système de refroidissement par ventilation ou par refroidissement liquide. Dû
à ces variations de température, les besoins thermiques de la batterie changent. Une isolation statique n'est pas l'idéal, car elle conservera la batterie au chaud lorsque la batterie deviendra plus chaude.
L'isolation conservera la chaleur à l'intérieur en augmentant ainsi l'effort nécessaire pour la refroidir. Le but étant de maximiser le contrôle de la température de la batterie et ainsi augmenter l'autonomie du véhicule en diminuant l'énergie nécessaire à gérer la température de la batterie.
Le système serait donc constitué d'une batterie sceller entourer d'une âme microporeuse d'une épaisseur d'environ 2 cm et recouverte d'une enveloppe externe en métal facilitant la dissipation thermique telle que l'aluminium. Cette enveloppe pourrait aussi se limiter au dessous et au dessus seulement qui sont les endroits principaux d'échange thermique avec l'extérieur. L'âme microporeuse permettant l'échange de gaz pourrait être vidé
de son gaz, idéalement de l'hélium comme il s'agit d'un gaz ayant une bonne conductivité
thermique. Ce gaz pourrait être évacué ou remis dans l'âme microporeuse pour ajuster l'isolation de la batterie selon les besoins thermique. Lorsque la température extérieure est froide et que la batterie doit être conservé chaude ou est en recharge, le vide pourrait se faire et ainsi diminuer l'énergie électrique nécessaire à la maintenir chaude. Advenant qu'elle se réchauffe trop, le vide pourrait être rempli d'hélium et ainsi augmenter la dissipation thermique. Le simple usage d'une pompe à vide et d'un réservoir d'hélium adjacent serait nécessaire à son fonctionnement, diminuant ainsi la demande électrique. La pompe à vide nécessaire au système de freinage pourrait être utilisée parallèlement pour faire ce travail. Le coût serait relativement minime par rapport au gain d'autonomie potentiel.
L'hélium ayant une conductivité thermique de 0.151W/mK à 300K, ce choix semble tout indiqué.
Un tel système sous vide pourrait offrir une valeur d'isolation R allant à 26 pour seulement 2 cm d'épaisseur tout en ayant la possibilité d'avoir une valeur de R négligeable lorsqu'il est nécessaire de refroidir la batterie à l'aide de la température extérieure. La batterie pourrait aussi être isoler de la chaleur intense extérieure et la refroidir à l'aide d'un système de refroidissement liquide actuellement présent sur les véhicules électriques à
la manière d'un réfrigérateur qui isole le froid de l'extérieur plus chaud.
Un tel système aurait aussi l'avantage d'augmenter la sécurité de du véhicule des éléments extérieurs.
Date Reçue/Date Received 2022-01-20 English: Adjustable vacuum insulation for battery thermal management English: Adjustable vacuum insulation for thermal management of the battery This is a thermal management system for a propulsion battery in a vehicle electric. When a lithium or other chemistry battery becomes discharged or recharge, she produces heat due to the internal resistance of the battery. These batteries need cooling system by ventilation or by liquid cooling. Of to these variations temperature, the thermal requirements of the battery change. Insulation static is not ideal, as it will keep the battery warm when the battery will get hotter.
The insulation will keep the heat inside thus increasing the effort necessary for the chill. The goal is to maximize the temperature control of the battery and so increase the vehicle's range by reducing the energy needed to manage the temperature of battery.
The system would therefore consist of a sealed battery surrounded by a soul microporous of a thickness of about 2 cm and covered with an external metal casing facilitating the heat dissipation such as aluminum. This envelope could also be limit to below and above only which are the main places of exchange thermal with the outside. The microporous core allowing gas exchange could be emptied of its gas, ideally helium as it is a gas with good conductivity thermal. This gas could be evacuated or put back into the microporous core to adjust battery insulation according to thermal needs. When the outside temperature is cold and that the battery should be kept hot or is being recharged, the vacuum could occur and thus decrease energy electricity needed to keep it warm. Should she warm up too much, the void could be filled with helium and thus increase heat dissipation. The simple use of a pump vacuum and an adjacent helium tank would be required for its running, decreasing thus the electrical demand. The vacuum pump needed for the braking system could be used in parallel to do this work. The cost would be relatively minimal compared to potential gain of autonomy.
Since helium has a thermal conductivity of 0.151W/mK at 300K, this choice seems everything indicated.
Such a vacuum system could offer an R-value of up to 26 for only 2 cm thick while having the possibility of having a negligible R value when he is necessary to cool the battery using the outside temperature. There battery could also be insulated from intense external heat and cooled using of a system of liquid cooling currently present on electric vehicles with the way of a refrigerator that isolates the cold from the warmer outside.
Such a system would also have the advantage of increasing the safety of the vehicle elements exteriors.
Date Received/Date Received 2022-01-20
Claims
Revendication : ajuster de façon variable un gaz ou mélange de gaz dans une protection en vase clos pour créer un isolant variable pour la gestion thermique d'une batterie. used a vacuum pump to vary the amount of gas in an insulator microporous to passively control the temperature of a battery of vehicle of transportation.
Claim: to variably adjust a gas or mixture of gases in a vase protection closed to create a variable insulator for the thermal management of a battery.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA3146282A CA3146282A1 (en) | 2022-01-20 | 2022-01-20 | Isolation a vide ajustable pour la gestion thermique d'une batterie |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA3146282A CA3146282A1 (en) | 2022-01-20 | 2022-01-20 | Isolation a vide ajustable pour la gestion thermique d'une batterie |
Publications (1)
Publication Number | Publication Date |
---|---|
CA3146282A1 true CA3146282A1 (en) | 2023-07-20 |
Family
ID=87245303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA3146282A Pending CA3146282A1 (en) | 2022-01-20 | 2022-01-20 | Isolation a vide ajustable pour la gestion thermique d'une batterie |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA3146282A1 (en) |
-
2022
- 2022-01-20 CA CA3146282A patent/CA3146282A1/en active Pending
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