GB2600676A - A cooling apparatus for cooling the battery of an electric vehicle, a method of cooling the battery of an electric vehicle and an electrically powered vehicle - Google Patents

A cooling apparatus for cooling the battery of an electric vehicle, a method of cooling the battery of an electric vehicle and an electrically powered vehicle Download PDF

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Publication number
GB2600676A
GB2600676A GB2015248.4A GB202015248A GB2600676A GB 2600676 A GB2600676 A GB 2600676A GB 202015248 A GB202015248 A GB 202015248A GB 2600676 A GB2600676 A GB 2600676A
Authority
GB
United Kingdom
Prior art keywords
cooling
cooling apparatus
battery
pipe
bag
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
Application number
GB2015248.4A
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GB202015248D0 (en
Inventor
Lauren Bailey Jessica
Salah Bakr Tawfik Ahmed
Rose Pauline Blunt Maria
Bailey Richard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Environmental Defence Systems Ltd
Original Assignee
Environmental Defence Systems Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Environmental Defence Systems Ltd filed Critical Environmental Defence Systems Ltd
Priority to GB2015248.4A priority Critical patent/GB2600676A/en
Publication of GB202015248D0 publication Critical patent/GB202015248D0/en
Publication of GB2600676A publication Critical patent/GB2600676A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/655Solid structures for heat exchange or heat conduction
    • H01M10/6556Solid parts with flow channel passages or pipes for heat exchange
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/61Types of temperature control
    • H01M10/613Cooling or keeping cold
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/62Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625Vehicles
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/655Solid structures for heat exchange or heat conduction
    • H01M10/6556Solid parts with flow channel passages or pipes for heat exchange
    • H01M10/6557Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/656Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567Liquids
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

A cooling apparatus 1 for cooling the battery of an electric vehicle comprises (i) a cooling bag 2 comprising a cooling bag wall 3 defining a cooling bag volume 6; (ii) a pipe connector 8 for connecting to a pipe, the pipe connector extending through an aperture 7 in the cooling bag wall; and (iii) an absorbent core 9 arranged in the cooling bag volume, the absorbent core comprising absorbent crystalline and fibrous materials. This allows the cooling apparatus to be moved underneath a vehicle in a dry state and then wetted to cause it to expand and abut the underside of the vehicle, so cooling the battery of the vehicle (Figs 8 & 9). The absorbent crystalline material is preferably a superabsorbent polymer such as a polyacrylate or polyacrylamide, or salt thereof. The absorbent fibrous material is preferably a cellulose which may comprise between 40-80 wt% of the total absorbent core. The cooling apparatus may comprise a plurality of sub-bags (Figs 5-7). A method of cooling the battery is also claimed, with a pipe being connected to the pipe connector to enable flowing a liquid, preferably water, into the cooling bag to wet the absorbent core.

Description

A cooling apparatus for cooling the battery of an electric vehicle, a method of cooling the battery of an electric vehicle and an electrically powered vehicle.
The present invention relates to a cooling apparatus for cooling the battery of an electric vehicle. More particularly, but not exclusively, the present invention relates to a cooling apparatus for cooling the battery of an electric vehicle comprising a cooling bag having a pipe connector in the wall of the bag and an absorbent core in the bag, the absorbent core comprising an absorbent crystalline material and an absorbent fibrous material. The present invention also relates to a method of cooling the battery of an electric vehicle. More particularly, but not exclusively, the present invention relates to a method of cooling the battery of an electric vehicle comprising the steps of providing an apparatus for cooling the battery of an electric vehicle, arranging the cooling apparatus under the vehicle such that at least a portion of the cooling bag is beneath the battery and then wetting the absorbent core. The present invention also relates to an electrically powered vehicle. More particularly, but not exclusively, the present invention relates to an electrically powered vehicle comprising a chassis, a battery in fixed relation to the chassis and a cooling apparatus arranged such that on expansion it pushes against the battery.
Electric vehicles at least partially powered by one or more batteries are becoming increasingly common. Such batteries typically comprise a plurality of battery cells. A problem with such cells is that they can start to overheat. They can then go into thermal runaway which can cause them to leak or even ignite, releasing dangerous chemicals into the surrounding atmosphere and potentially setting light to the vehicle.
It can often be difficult to cool the batteries of an electric vehicle as the batteries are typically in an inaccessible location They are often located on the chassis of the vehicle below the passenger compartment.
The present invention seeks to overcome the problems of the prior art.
In a first aspect the present invention provides a cooling apparatus for cooling the battery of an electric vehicle, the cooling apparatus comprising a cooling bag comprising a cooling bag wall defining a cooling bag volume; (ii) a pipe connector for connecting to a pipe, the pipe connector extending through an aperture in the cooling bag wall; and, (iii) an absorbent core arranged in the cooling bag volume, the absorbent core comprising an absorbent crystalline material and an absorbent fibrous material; The cooling apparatus according to the invention can be moved under an electric vehicle in a dry state. Once under the vehicle it can be wetted causing it to expand and abut the underside of the vehicle so cooling the battery of the vehicle.
Preferably the cooling apparatus further comprises a plurality of sub-bags, each sub-bag comprising a sub-bag wall defining a sub-bag volume, each sub-bag being arranged in the cooling bag volume and containing a portion of the absorbent core.
Preferably the sub bags are arranged in a repeating pattern.
Preferably the sub-bags are arranged in a plurality of layers, each layer comprising a plurality of sub-bags.
Preferably the cooling apparatus further comprises at least one mixing pipe arranged within the cooling bag volume, the mixing pipe comprising first and second ends and a mixing pipe wall extending therebetween; the first end of the mixing pipe being connected to the pipe connector; the mixing pipe wall comprising at least one aperture extending therethrough.
Preferably the second end of the mixing pipe is open.
Preferably the mixing pipe is arranged along a serpentine path in the cooling bag volume.
Preferably the mixing pipe is arranged between adjacent layers of sub-bags.
Preferably the apparatus comprises a plurality of mixing pipes arranged within the cooling bag volume.
Preferably the absorbent crystalline material is a superabsorbent polymer.
Preferably the superabsorbent polymer is one or more polyacrylate or polyacrylamide, preferably a polyacrylate and/or polyacrylamide salt.
Preferably the absorbent fibrous material is a cellulosic material.
Preferably the cellulosic material comprises from 40% to 80% by weight of the total absorbent core.
Preferably the absorbent core comprises an admixture of absorbent crystalline material and absorbent fibrous material.
Preferably the absorbent core comprises alternating layers of absorbent crystalline material and absorbent fibrous material.
In a further aspect of the invention there is provided a method of cooling a battery of an electric vehicle comprising the steps of (a) providing a cooling apparatus as claimed in any one of claims 1 to 15 with the cooling bag in a dry state; (b) connecting a pipe to the pipe connector; (c) moving the cooling apparatus to a point under the vehicle such that at least a portion of the bag is beneath the battery; and, (e) flowing a liquid along the pipe, through the pipe connector and into the cooling bag volume so wetting the absorbent core.
Preferably the liquid is water.
Preferably the method further comprises the step of arranging the cooling apparatus on a platform; and wherein the step of moving the cooling apparatus comprises moving the platform with the cooling apparatus thereon.
Preferably the cooling apparatus is arranged on the platform before the pipe is connected to the cooling apparatus Alternatively the cooling apparatus is arranged on the platform after the pipe is connected to the cooling apparatus.
Preferably the liquid is cooled before being flowed into the pipe.
In a further aspect of the invention there is provided an electrically powered vehicle comprising a chassis; a battery in fixed relation to the chassis; and, at least one cooling apparatus as claimed in any one of claims 1 to 15 in a dry state; the cooling apparatus being arranged such that on expansion it pushes against the battery.
Preferably the cooling apparatus is arranged between the battery and chassis.
Preferably the battery is arranged between the cooling apparatus and chassis.
Preferably the electrically powered vehicle comprises a plurality of cooling apparatus, the battery being arranged between spaced apart cooling apparatus.
Preferably the cooling bag is shaped as a pouch and the battery is arranged in the pouch.
The present invention will now be described by way of example only and not in any!imitative sense with reference to the accompanying drawings in which Figure 1 shows a first embodiment of a cooling apparatus according to the invention in vertical cross section in a dry state; Figure 2 shows the embodiment of figure 1 in the wet state; Figure 3 shows a further embodiment of a cooling apparatus according to the invention in vertical cross section; Figure 4 shows a further embodiment of a cooling apparatus according to the invention in vertical cross section; Figure 5 shows a further embodiment of a cooling apparatus according to the invention in vertical cross section; Figure 6 shows a further embodiment of a cooling apparatus according to the invention in vertical cross section; Figure 7 shows a further embodiment of a cooling apparatus according to the invention in vertical cross section; Figures 8(a) to 8(d) a first embodiment of a method according to the invention; Figure 9 shows the last step of a further embodiment of a method according to the invention; Figure 10 shows a further embodiment of a cooling apparatus according to the invention; Figure 11 shows a first embodiment of an electrically powered vehicle according to the invention; Figure 12 shows a further embodiment of an electrically powered vehicle according to the invention; Figure 13 shows a further embodiment of an electrically powered vehicle according to the invention; and, Figure 14 shows a further embodiment of an electrically powered vehicle according to the invention.
Shown in figure 1 is a cooling apparatus 1 according to the invention in vertical cross section in a dry state. The cooling apparatus 1 comprises a cooling bag 2 which comprises a cooling bag wall 3 having first and second faces 4,5. The cooling bag wall 3 defines a cooling bag volume 6. In this embodiment the cooling bag wall 3 is impermeable to liquids although in alternative embodiments may be semi-permeable or permeable to liquids. The cooling bag wall 3 is typically a plastics material or the like.
An aperture 7 extends through one of the first and second faces 4,5. Surrounding the aperture 7 is a pipe connector 8 for connection to a pipe, the function of which is explained in more detail below.
Arranged within the cooling bag volume 6 is an absorbent core 9. The absorbent core 9 comprises an absorbent crystalline material and an absorbent fibrous material. The absorbent crystalline material is typically a superabsorbent polymer. Typically the superabsorbent polymer is one or more polyacrylate or polyacrylamide. Preferably the superabsorbent polymer is one or more polyacrylate and/or polyacrylamide salt.
The absorbent fibrous material is typically a cellulosic material such as wood pulp or paper or mixtures thereof. The cellulosic material typically comprises from 40% to 80% by weight of the total absorbent core.
In this embodiment the absorbent crystalline material and absorbent fibrous material are uniformly mixed together so that the absorbent crystalline material is substantially uniformly distributed throughout the absorbent core 9. In one method of manufacture of the absorbent core 9 the absorbent crystalline material and absorbent fibrous material are mixed together in a rotating drum such that the crystals of the absorbent crystalline material coat the fibres of the absorbent fibrous material. Other methods of manufacture are possible.
S
When a liquid such as water is added to the absorbent core 9 it absorbs the water and expands to many times its volume. Figure 2 shows the cooling apparatus of figure 1 in the wet state, ie when the absorbent core 9 has absorbed water and has expanded.
Shown in figure 3 is a further embodiment of a cooling apparatus 1 according to the invention in vertical cross section in the wet state. This embodiment is similar to that of figure 1 except the absorbent crystalline material 10 and absorbent fibrous material 11 are arranged in alternating layers.
Shown in figure 4 is a further embodiment of a cooling apparatus 1 according to the invention in vertical cross section in the wet state. This embodiment is again similar to that of figure 1 except in this embodiment the cooling apparatus 1 further comprises a mixing pipe 12 arranged within the cooling bag volume 6. The mixing pipe 12 comprises first and second ends 13,14 and a mixing pipe wall 15 extending therebetween. The first end 13 of the mixing pipe 12 is connected to the pipe connector 8. The second end 14 of the mixing pipe 12 is open. The mixing pipe wall 15 is permeable to liquids, typically water. In this embodiment the mixing pipe wall 15 comprises a plurality of apertures (not shown) extending therethrough through which water can escape the mixing pipe 12. The mixing pipe 12 is arranged along a serpentine path within the cooling bag volume 6 as shown.
The water which flows through the pipe connector 8 flows along the mixing pipe 12 and exits through the second end 14 of the mixing pipe 12 and through the apertures in the mixing pipe wall 15. As the mixing pipe 12 is arranged along a serpentine path the absorbent core 9 is wetted uniformly by the water. This increases the rate of expansion of the absorbent core 9. It also increases the uniformity with which the absorbent core 9 expands.
Shown in figure 5 is a further embodiment of a cooling apparatus 1 according to the invention in vertical cross section in the wet state. This embodiment is similar to that of figure 1 except it further comprises a plurality of sub-bags 16 arranged within the cooling bag volume 6. Each sub-bag 16 comprises a sub-bag wall 17 which defines a sub-bag volume 18. The sub bag wall 17 is porous to liquids, typically water. Arranged in each sub-bag 16 is a portion of the absorbent core 9. In this embodiment the absorbent crystalline material 10 and absorbent fibrous material 11 are substantially uniformly mixed.
The sub-bags 16 are arranged in a repeating pattern. In this embodiment the sub-bags 16 are arranged in a plurality of layers with each layer comprising a plurality of sub-bags 16. The sub-bags 16 are typically stitched to each other. The sub-bags 16 maintain the absorbent core 9 in position in the cooling bag volume 6, preventing it from moving when the cooling bag 2 is being transported or moved in to position.
Shown in figure 6 is a further embodiment of a cooling apparatus 1 according to the invention in vertical cross section in the wet state. This embodiment is similar to that of figure 5 except the absorbent core 9 in the sub bags 16 is arranged in alternating layers of absorbent crystalline material 10 and absorbent fibrous material 11. A mixing pipe 12 is arranged between alternating layers of sub-bags 16 as shown to maximise the rate and uniformity of wetting of the sub-bags 16.
Shown in figure 7 is a further embodiment of a cooling apparatus 1 according to the invention in vertical cross section. This embodiment is similar to the embodiment of figure 6 except it further comprises a drain 19 extending through the cooling bag wall 3. The drain 19 enables the fluid to be continuously flowed through the cooling apparatus 1 in use.
Figures 8(a) to 8(d) show a first embodiment of method of cooling a battery of an electric vehicle according to the invention.
According to the method the cooling apparatus 1 is firstly arranged on a platform 20 with the cooling bag 1 in a dry state. Typically the cooling bag 2 is arranged such that the pipe connector 8 is on the upper face as shown in figure 8(a). A pipe 21, typically a hose pipe, is then connected to the pipe connector 8 as shown in figure 8(b). The platform 20 is then moved under a vehicle 22 such that at least a portion of the cooling bag 2 is beneath the battery 23 as shown in figure 8(c). In a final step a liquid, typically water is flowed along the pipe 21, through the pipe connector Sand into the cooling bag volume 6. The water causes the absorbent core 9 to expand rapidly until it abuts the underside of the chassis of the vehicle 22 as shown in figure 8(d). The cold cooling bag 2 cools the battery preventing it from overheating.
In an alternative embodiment of a method according to the invention the pipe 21 is connected to the pipe connector 8 before the cooling apparatus 1 is arranged on the platform 20.
Typically the liquid is water supplied from a cold water tap. Alternatively, the liquid may be cooled by a refrigeration apparatus before being flowed to the cooling apparatus 1. Typically the refrigeration apparatus will cool the liquid by a few degrees. In an alternative embodiment the refrigeration apparatus cools a gas such as nitrogen to form liquid nitrogen which is then flowed to the cooling apparatus 1.
Figure 9 shows the final step of a further method of cooling a battery 23 of an electric vehicle 22 according to the invention. In this embodiment of the method the cooling apparatus 1 of figure 7 is employed. In this embodiment water is continuously flowed through the cooling apparatus so keeping it cool. In this embodiment of the method according to the invention a platform 20 is not employed. Instead the cooling apparatus is slid into position under the vehicle.
Figure 10 shows a further embodiment of a cooling apparatus according 1 to the invention in plan view. The cooling apparatus 1 of this embodiment comprises a plurality of mixing pipes 12 arranged within the cooling bag volume 6. Each mixing pipe 12 is arranged along a serpentine path as shown. Increasing the number of mixing pipes 12 increases the rate at which the cooling apparatus 1 absorbs water and expands.
Shown in figure 11 is a first embodiment of an electrically powered vehicle 24 according to the invention. The electrically powered vehicle 24 comprises a chassis 25. Held in fixed relation to the chassis 25 is a battery 26 which is used to power the vehicle 24. The vehicle 24 further comprises a cooling apparatus 1 arranged between the chassis 25 and battery 26. The cooling apparatus 1 comprises a cooling bag 2 comprising a cooling bag wall 3 defining a cooling bag volume 6. The cooling apparatus 1 further comprises a pipe connector 8 for connecting to a pipe, the pipe connector extending through an aperture 7 in the cooling bag wall; and, an absorbent core 9 arranged in the cooling bag volume 6, the absorbent core 9 comprising an absorbent crystalline material and an absorbent fibrous material. The cooling apparatus 1 can for example be any of the cooling apparatus as shown in figures 1 to 9.
The cooling apparatus 1 is in the dry state. In this state the cooling apparatus 1 is spaced apart slightly from the battery 26 as shown. A chassis pipe 27 extends from the pipe connector 8 to the edge of the chassis 25. In use, if the battery 26 starts to overheat a liquid source (for example a tap) is connected to the chassis pipe 27. The liquid is then flowed along the chassis pipe 27 to the cooling apparatus 1. As the absorbent core 9 becomes wet it expands so pushing the cooling apparatus 1 against the battery 26 and cooling the battery 26.
Figure 12 shows a further embodiment of an electrically powered vehicle 24 according to the invention. This embodiment is similar to that of figure 11 except the battery 26 is arranged between the chassis 25 and cooling apparatus 1 (or in other words the cooling apparatus 1 is above the battery 26). The cooling apparatus 1 is typically fixed in place by straps or other fixing mechanisms. Again, as the cooling apparatus 1 expands it pushes against the battery 26 so cooling it.
Figure 13 shows a further embodiment of an electrically powered vehicle 24 according to the invention. In this embodiment the battery 26 is arranged between first and second cooling apparatus 1.
In the above embodiments of the electrically powered vehicle 24 the cooling apparatus 1 is/are spaced apart from the battery 26 when in the dry state. This allows air cooling of the battery 26 during normal operation. In alternative embodiments of the invention when the cooling apparatus 1 is/are in the dry state they abut (ie are in contact with) the battery 26. The operation of the cooling apparatus 1 however is the same. As the cooling apparatus 1 expands it pushes against the battery 26 increasing the contact area between the cooling apparatus 1 and battery 26 so enabling efficient cooling of the battery 26 by the cooling apparatus 1.
Shown in figure 14 is a further embodiment of an electrically powered vehicle 24 according to the invention. In this embodiment the cooling apparatus 1 is shaped as a pouch and the battery 26 is arranged within the pouch.

Claims (1)

  1. CLAIMS.1. A cooling apparatus for cooling the battery of an electric vehicle, the cooling apparatus comprising (i) a cooling bag comprising a cooling bag wall defining a cooling bag volume; (ii) a pipe connector for connecting to a pipe, the pipe connector extending through an aperture in the cooling bag wall; and, (iii) an absorbent core arranged in the cooling bag volume, the absorbent core comprising an absorbent crystalline material and an absorbent fibrous material; 2. A cooling apparatus as claimed in claim 1 further comprising a plurality of sub-bags, each sub-bag comprising a sub-bag wall defining a sub-bag volume, each sub-bag being arranged in the cooling bag volume and containing a portion of the absorbent core.3. A cooling apparatus as claimed in claim 2 wherein the sub bags are arranged in a repeating pattern.4. A cooling apparatus as claimed in claim 3, wherein the sub-bags are arranged in a plurality of layers, each layer comprising a plurality of sub-bags.S. A cooling apparatus as claimed in any one of claims 1 to 4, further comprising a mixing pipe arranged within the cooling bag volume, the mixing pipe comprising first and second ends and a mixing pipe wall extending therebetween; the first end of the mixing pipe being connected to the pipe connector; the mixing pipe wall comprising at least one aperture extending therethrough.6. A cooling apparatus as claimed in claim 5, wherein the second end of the mixing pipe is open.7. A cooling apparatus as claimed in either of claims 5 or 6, wherein the mixing pipe is arranged along a serpentine path in the cooling bag volume.8. A cooling apparatus as claimed in any one of claims 5 to 7, when dependent on claim 4 wherein the mixing pipe is arranged between adjacent layers of sub-bags.9. A cooling apparatus as claimed in any one of claims 5 to 8, comprising a plurality of mixing pipes arranged within the cooling bag volume.10. An apparatus as claimed in any one of claims 1 to 9, wherein the absorbent crystalline material is a superabsorbent polymer.11. A apparatus as claimed in claim 10, wherein the superabsorbent polymer is one or more polyacrylate or polyacrylamide, preferably a polyacrylate and/or polyacrylamide salt.12. An apparatus as claimed in any one of claims 1 to 11, wherein the absorbent fibrous material is a cellulosic material.13. An apparatus as claimed in claim 12, wherein the cellulosic material comprises from 40% to 80% by weight of the total absorbent core.14. An apparatus as claimed in any one of claims 1 to 13, wherein the absorbent core comprises an admixture of absorbent crystalline material and absorbent fibrous material.15. An apparatus as claimed in any one of claims 1 to 13, wherein the absorbent core comprises alternating layers of absorbent crystalline material and absorbent fibrous material.16. A method of cooling a battery of an electric vehicle comprising the steps of (a) providing a cooling apparatus as claimed in any one of claims 1 to 15 with the cooling bag in a dry state; (b) connecting a pipe to the pipe connector; (c) moving the cooling apparatus to a point under the vehicle such that at least a portion of the bag is beneath the battery; and, (e) flowing a liquid along the pipe, through the pipe connector and into the cooling bag volume so wetting the absorbent core.17. A method as claimed in claim 16 wherein the liquid is water.18. A method as claimed in either of claims 16 or 17 further comprising the step of arranging the cooling apparatus on a platform; and wherein the step of moving the cooling apparatus comprises moving the platform with the cooling apparatus thereon.19. A method as claimed in claim 18 wherein the cooling apparatus is arranged on the platform before the pipe is connected to the cooling apparatus 20. A method as claimed in claim 18, wherein the cooling apparatus is arranged on the platform after the pipe is connected to the cooling apparatus.21. A method as claimed in any one of claims 16 to 20, wherein the liquid is cooled before being flowed along the pipe.22. An electrically powered vehicle comprising a chassis; a battery in fixed relation to the chassis; and, at least one cooling apparatus as claimed in any one of claims 1 to 15 in a dry state; the cooling apparatus being arranged such that on expansion it pushes against the battery.23. An electrically powered vehicle as claimed in claim 22, wherein the cooling apparatus is arranged between the battery and chassis.24. An electrically powered vehicle as claimed in claim 22, wherein the battery is arranged between the cooling apparatus and chassis.25. An electrically powered vehicle as claimed in claim 22, comprising a plurality of cooling apparatus, the battery being arranged between spaced apart cooling apparatus.26. An electrically powered vehicle as claimed in claim 22, wherein the cooling bag is shaped as a pouch and the battery is arranged in the pouch.
GB2015248.4A 2020-09-26 2020-09-26 A cooling apparatus for cooling the battery of an electric vehicle, a method of cooling the battery of an electric vehicle and an electrically powered vehicle Pending GB2600676A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2015248.4A GB2600676A (en) 2020-09-26 2020-09-26 A cooling apparatus for cooling the battery of an electric vehicle, a method of cooling the battery of an electric vehicle and an electrically powered vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2015248.4A GB2600676A (en) 2020-09-26 2020-09-26 A cooling apparatus for cooling the battery of an electric vehicle, a method of cooling the battery of an electric vehicle and an electrically powered vehicle

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GB202015248D0 GB202015248D0 (en) 2020-11-11
GB2600676A true GB2600676A (en) 2022-05-11

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160254577A1 (en) * 2015-02-26 2016-09-01 MAGNETI MARELLI S.p.A. Cooling circuit with cooling fluid for lithium batteries, and a vehicle comprising said cooling circuit
US20170030696A1 (en) * 2014-04-08 2017-02-02 Environmental Defence Systems Limited A Method and Apparatus for Controlling a Hazardous Device
US20190214692A1 (en) * 2016-08-16 2019-07-11 Autonetworks Technologies, Ltd. Power storage module

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170030696A1 (en) * 2014-04-08 2017-02-02 Environmental Defence Systems Limited A Method and Apparatus for Controlling a Hazardous Device
US20160254577A1 (en) * 2015-02-26 2016-09-01 MAGNETI MARELLI S.p.A. Cooling circuit with cooling fluid for lithium batteries, and a vehicle comprising said cooling circuit
US20190214692A1 (en) * 2016-08-16 2019-07-11 Autonetworks Technologies, Ltd. Power storage module

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