CN217641541U - Battery module - Google Patents

Battery module Download PDF

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Publication number
CN217641541U
CN217641541U CN202221680358.XU CN202221680358U CN217641541U CN 217641541 U CN217641541 U CN 217641541U CN 202221680358 U CN202221680358 U CN 202221680358U CN 217641541 U CN217641541 U CN 217641541U
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China
Prior art keywords
battery
module
sheet
heating
battery cell
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Active
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CN202221680358.XU
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Chinese (zh)
Inventor
詹振江
罗自皓
于璐嘉
孙娅丽
廖方俊
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Zhuhai Cosmx Power Co Ltd
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Zhuhai Cosmx Power Co Ltd
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Priority to CN202221680358.XU priority Critical patent/CN217641541U/en
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Publication of CN217641541U publication Critical patent/CN217641541U/en
Priority to PCT/CN2023/086024 priority patent/WO2024001380A1/en
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    • 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

The utility model provides a battery module, include: the method comprises the following steps: the thermoelectric module comprises a battery cell, a metal sheet, a thermoelectric conversion element, a heat conducting sheet and a heating sheet; the metal sheet is positioned on one side, away from the battery core, of the heat conducting sheet; the battery cell is respectively contacted with the heating sheet and the heat conducting sheet; the thermoelectric conversion elements are in contact with the heat conductive sheet and the metal sheet, respectively. The embodiment of the utility model provides a battery module, through turn into electric energy with electric core used heat after the storage in energy memory, convert the electric energy among the energy memory into the heat and provide electric core again when starting the battery under cold condition, avoided additionally using external heating equipment, realized saving battery use cost's effect.

Description

Battery module
Technical Field
The utility model relates to a lithium battery technology especially relates to a battery module.
Background
Along with the continuous progress of science and technology, more and more electronic products have come into people's daily life, and many electronic products all develop towards wireless, and the energy of wireless electronic product comes from with the battery of product, along with the requirement improvement of product performance, also increasingly high to the performance requirement of product battery. In addition, the demand of wireless electronic devices in some cold regions is increasing, and the discharge performance of the battery is severely limited in cold conditions, which may even cause the electronic device to fail to work normally, and the battery needs to be heated to enable the electronic product to work normally. In the prior art, the battery is generally heated by an external heating device, or a heating device is added inside the battery to supply power for heating. However, it is necessary to ensure good heating or power supply conditions outside, and some extremely cold areas, such as examination in a scientific research station, cannot ensure the heating of the battery under certain conditions. And the heating mode causes the problem of high cost for heating the battery.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a battery module has solved the too high problem of battery heating cost under cold condition.
An embodiment of the utility model provides a battery module, include: the thermoelectric module comprises a battery cell, a metal sheet, a thermoelectric conversion element, a heat conducting sheet and a heating sheet;
the metal sheet is positioned on one side, away from the battery core, of the heat conducting sheet;
the electric core is respectively contacted with the heating sheet and the heat conducting sheet;
the thermoelectric conversion elements are in contact with the heat conductive sheet and the metal sheet, respectively.
Optionally, the battery module includes a plurality of battery cells arranged in parallel;
the heating sheet comprises a plurality of heating parts arranged side by side along the arrangement direction of the battery cores, a first connecting part for connecting two adjacent heating parts and a slot formed on the first connecting part;
the heat conducting fin comprises a heat conducting part penetrating in the slot, and the heat conducting fin and the heating fin form a folding structure;
at least one electricity core is located the heat conduction portion with between the heating portion.
Optionally, the heat conducting sheet includes a second connecting portion connecting adjacent ones of the heat conducting portions;
the second connection portion is in contact with the thermoelectric conversion element.
Optionally, in the arrangement direction of the battery cells, the folding structure includes heat conducting portions respectively located on two opposite sides of the folding structure.
Optionally, the length of the heating part is greater than that of the heat conducting part, and/or
The thermoelectric conversion element has a height higher than that of the heat conductive sheet in the height direction of the battery module, and/or
The battery cell comprises a shell and a battery cell body, wherein the shell comprises an encapsulation part for coating the battery cell body and a sealing edge positioned on one side of the encapsulation part, and the sealing edge is bent towards the direction close to the battery cell body and/or
The battery cell comprises a shell and a battery cell body, wherein the shell comprises an encapsulation part for coating the battery cell body, and the adjacent encapsulation parts of the battery cell are oppositely arranged and/or
The battery module further comprises a buffer member, the buffer member is positioned between the battery core and the heating part, and/or
And the heat conducting part is positioned between the battery cell and the heat conducting part.
Optionally, the battery cell includes two first side surfaces arranged oppositely and two second side surfaces arranged oppositely;
the area of the first side surface is larger than that of the second side surface;
at least one first side of electricity core with the heating portion contact.
Optionally, the battery cells include a first battery cell located on a first side and a second battery cell located on a second side opposite to the first side;
two first side surfaces of the first battery cell are respectively contacted with the heat conducting part or the heating part, and/or
And the two second side surfaces of the second battery cell are respectively contacted with the first connecting part or the second connecting part.
Optionally, an included angle is formed between the heat conducting portion and the second connecting portion and/or between the heating portion and the first connecting portion, and the included angle is an arc angle or a linear angle.
Optionally, at least two battery cells are accommodated between the adjacent heat conducting portions or heating portions.
Optionally, the battery pack further includes a control module and an energy storage module, the control module is connected to the energy storage module, and the control module is configured to control the thermoelectric conversion element to charge the energy storage module or control the heating sheet to heat the battery cell.
Optionally, the power supply further comprises an amplifying module, the amplifying module is disposed between the thermoelectric module and the energy storage module and is electrically connected to the thermoelectric module and the energy storage module, respectively, and the amplifying module is configured to amplify the voltage generated by the thermoelectric conversion element and then charge the energy storage module.
The utility model provides a battery module, include: the method comprises the following steps: the battery comprises a battery cell, a metal sheet, a thermoelectric conversion element, a heat conducting sheet and a heating sheet; the metal sheet is positioned on one side, away from the battery core, of the heat conducting sheet; the electric core is respectively contacted with the heating sheet and the heat conducting sheet; the thermoelectric conversion elements are in contact with the heat conductive sheet and the metal sheet, respectively. The embodiment of the utility model provides a battery module, through turn into electric energy with electric core used heat after the storage in energy memory, convert the electric energy among the energy memory into the heat and provide electric core again when starting the battery under cold condition, avoided additionally using external heating equipment, realized saving battery use cost's effect.
Drawings
FIG. 1 is a schematic diagram of a battery according to an embodiment of the present invention;
fig. 2 is a second schematic diagram of the battery structure according to the embodiment of the present invention;
fig. 3 is a third schematic diagram of the battery structure in the embodiment of the present invention;
fig. 4 is a schematic structural view of a heat-conducting fin according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a heating sheet according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a folding structure in an embodiment of the present invention;
fig. 7 is a schematic block diagram of a battery module according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a circuit structure in an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all embodiments of the present invention. In the case of conflict, the embodiments and features of the embodiments described below may be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms a, an, etc. do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.
Referring to fig. 1 to 3, fig. 1, 2 and 3 are schematic views of a battery structure in the present embodiment, and a battery module provided in the present embodiment includes: the battery cell 170, the metal sheet 200, the thermoelectric conversion element 190, the heat conducting sheet 180, and the heating sheet 240;
the metal sheet 200 is located on a side of the heat conducting sheet 180 facing away from the battery cell 170;
the battery cell 170 is respectively in contact with the heating plate 240 and the heat conducting plate 180;
the thermoelectric conversion elements 190 are in contact with the heat conductive sheet 180 and the metal sheet 200, respectively.
In this embodiment, the heat conducting sheet 180 may be a high heat conducting sheet, the heating sheet 240 may be a heating sheet, and the metal sheet 200 may be an outer-leaking aluminum sheet. Thermoelectric conversion module 190 is arranged between the folded position of high heat-conducting thin sheet 180 and outer aluminum sheet 200, and in order to allow outer aluminum sheet 200 to better receive the heat from battery cell 170, heat-conducting silicone grease can be added between outer aluminum sheet 200 and the side edge of battery cell 170 to enhance the heat-conducting effect. Electric core 170 sets up between high heat conduction thin slice and heating thin slice, can keep electric core 170 temperature or heat electric core 170 according to the temperature that high heat conduction thin slice and heating thin slice provided, thermoelectric conversion element 190 is used for the heat conversion between heat source and the cold source to the electric energy and stores in batteries, electric power storage devices such as electric capacity, after control circuit's adjustment and control, can supply power for inside heating thin slice 240 of battery and high heat conduction thin slice 180 under cold condition, provide the heat for electric core, need not external power source, can let the battery can reach good discharge temperature under cold condition, guarantee the normal discharge capacity of battery, provide stable power for equipment operation. If the thermoelectric conversion element 190 is disposed on the front surface of the battery cell 170, only the heat of the outermost battery cell 170 can be absorbed well, and the heat of the inner battery cell 170 is difficult to absorb, and may occupy the thickness space of the battery cell 170. Besides the high thermal conductive sheet 180 and the heating sheet 240, a certain amount of foam 270 is attached between the battery cells 170 to absorb the thickness expansion amount of the battery cells after circulation. The control module 230 is provided with an energy storage module 220 and an amplification module 210. The battery further includes a battery upper case 250 and a battery lower case 260, wherein the battery upper case 250 is disposed on the control module 230, and the battery lower case 260 is disposed outside the folding structure. The thermoelectric conversion module 190 and the exposed aluminum sheet 200 are arranged outside the folding structure in sequence.
The utility model provides a battery module, include: the method comprises the following steps: the thermoelectric module comprises a battery cell, a metal sheet, a thermoelectric conversion element, a heat conducting sheet and a heating sheet; the metal sheet is positioned on one side, away from the battery core, of the heat conducting sheet; the battery cell is respectively contacted with the heating sheet and the heat conducting sheet; the thermoelectric conversion elements are in contact with the heat conductive sheet and the metal sheet, respectively. The embodiment of the utility model provides a battery module, through turn into electric energy with electric core used heat after the storage in energy memory, provide electric core with the electric energy conversion among the energy memory for the heat again when starting battery under cold condition, avoided additionally using external firing equipment, realized saving battery use cost's effect.
In another embodiment, referring to fig. 3 to 5, fig. 3 is a schematic structural view of a heat conducting sheet in the present embodiment, fig. 4 is a schematic structural view of a heating sheet in the present embodiment, and fig. 5 is a schematic structural view of a folding structure in the present embodiment.
Optionally, the battery module includes a plurality of battery cells arranged in parallel;
the heating sheet comprises a plurality of heating parts 243 arranged side by side along the arrangement direction of the battery cells, a first connecting part 242 for connecting two adjacent heating parts 243, and a slot formed on the first connecting part 242;
the heat conducting fin comprises a heat conducting part 182 penetrating the slot, and the heat conducting fin and the heating fin form a folding structure;
at least one of the cells is located between the thermal conductive part 182 and the heating part 243.
In this embodiment, the heating sheet is a heating sheet 240, the heat conducting sheet is a high heat conducting sheet 180, the heating sheet includes a plurality of heating portions 243 and first connecting portions 242, and further includes a slot 241 on the first connecting portion 242; the high thermal conductive sheet 180 forms a matched folding structure with the heating sheet 240 through the slot 241, and optionally, at least two battery cells are accommodated between the adjacent thermal conductive portions 182 or heating portions 243. One or more cells are disposed in a folded structure according to the structure formed by the heat conductive part 182 or the heating part 243.
Optionally, the heat conducting sheet includes a second connecting portion 181 connecting adjacent heat conducting portions 182; the second connection portion 181 is in contact with the thermoelectric conversion element.
Optionally, in the arrangement direction of the battery cells, the folding structure includes heat conduction portions 182 respectively located on two opposite sides thereof. The length of heating portion 243 is greater than the length of heat conduction portion 182, and/or be in the direction of height of battery module, thermoelectric conversion element's height is higher than the height of conducting strip, and/or the electricity core includes casing and electric core body, the casing includes the encapsulation portion of cladding electricity core body and is located the banding of encapsulation portion one side, the banding is to being close to the direction of electricity core body is buckled, and/or the electricity core includes casing and electricity core body, the casing includes the encapsulation portion of cladding electricity core body, and is adjacent the encapsulation portion of electricity core is and sets up in opposite directions, and/or the battery module still includes the bolster, the bolster is located the electricity core with between the heating portion 243, and/or be located the electricity core with between the heat conduction portion 182.
In this embodiment, the high thermal conductive sheet 180 and the heating sheet 240 both form a folding structure, and the two form a composite folding structure together, each battery cell is placed between adjacent folding surfaces of the composite folding structure, and the folding position of the heating sheet 240 is grooved and avoided for assembling with the high thermal conductive sheet 180, and the folding position needs to ensure that the high thermal conductive sheet 180 is located on the outer side, and the heating sheet 240 is located on the inner side, so as to ensure that the high thermal conductive sheet 180 is in better contact with the thermoelectric conversion device located on the outer side. The composite folding structure can ensure that each battery cell has at least one large surface which is contacted with the heating thin sheet, so that each battery cell is heated more uniformly, and the temperature difference between the battery cells is further balanced due to the high heat conduction characteristic of the high heat conduction thin sheet 180, so that the temperature of each battery cell is close to the same when the battery works, and the service life of the battery is prolonged. Further, the heating sheet 240 may be connected to the control module through a wire, so that the control module can control the operation of the heating sheet.
Optionally, the battery cell includes two first side surfaces arranged oppositely and two second side surfaces arranged oppositely;
the area of the first side surface is larger than that of the second side surface;
at least one of the first side surfaces of the battery cell is in contact with the heating portion 243.
Optionally, the battery cells include a first battery cell located on a first side and a second battery cell located on a second side opposite to the first side;
the two first side surfaces of the first battery cell are respectively contacted with the heat conducting part 182 or the heating part 243, and/or
Two second side surfaces of the second battery cell are in contact with the first connection portion 242 or the second connection portion 181, respectively.
Optionally, an included angle is formed between the heat conducting portion 182 and the second connecting portion 181 and/or between the heating portion 243 and the first connecting portion 242, and the included angle is an arc angle or a linear angle.
In this embodiment, the battery cell is in a long main body shape and is disposed in the adjacent heat conduction portion 182, the first side surface of the battery cell is a surface with a large area, the second side surface of the battery cell is a surface with a small area, and the surface with the large area is in contact with the heat conduction portion 182, so that the battery cell can be better heated. Two or more than two battery cells are accommodated between the adjacent heat conducting parts 182, and the specific number is adaptively adjusted according to actual conditions. The included angle between the heat conducting part 182 and the second connecting part 181 generally needs to be smaller than 90 degrees, and when the included angle is larger than 90 degrees, the battery cell cannot be completely contacted with the heat conducting part 182, so that the problem of uneven heating can occur
Referring to fig. 7, fig. 7 is a schematic block diagram of a battery module according to an embodiment of the present invention, specifically, a battery module, including: the device comprises a thermoelectric module 1, a battery core 2, an energy storage module 3 and a heating module 4;
the thermoelectric module 1 is electrically connected with the energy storage module 3, the energy storage module 3 is electrically connected with the heating module 4, and the heating module 4 and the thermoelectric module 1 are in contact with the battery core 2;
the thermoelectric module 1 is used for generating a first voltage according to the temperature difference between the cold end of the thermoelectric module 1 and the surface of the electric core 2;
the energy storage module 3 is configured to perform charging according to the first voltage, and when a preset condition is met, the energy storage module 3 releases a second voltage generated according to the first voltage;
the heating module 4 is configured to convert the second voltage into a first heat and provide the first heat to the battery cell 2.
In this embodiment, thermoelectric module 1 is through the thermoelectric conversion technique that utilizes the seebeck effect, through arranging thermoelectric conversion device at electric core 2's side, contain multiunit thermoelectric conversion unit among this thermoelectric conversion device, can be with after the electric energy is converted into to the heat energy that the battery produced in the operation, via control circuit amplitude voltage, after the control charge-discharge process, with electric energy storage in the battery, among the power storage devices such as electric capacity, the effectual problem of generating heat of solving the battery, the temperature of key subassembly such as electric core 2 has been reduced, be favorable to improving the working property and the life of battery, user experience has been promoted.
Specifically, optionally, the thermoelectric module 1 includes a heat source, a thermoelectric conversion module and a heat sink, the thermoelectric conversion module is disposed between the heat source and the heat sink, and the thermoelectric conversion module is respectively in contact with the heat source and the heat sink; the cold source is an aluminum sheet, the heat source is an electric core 2, heat from the heat source is guided out by the high-heat-conductivity sheet and then absorbed by the thermoelectric conversion module and converted into electric energy, and the thermoelectric conversion module and the aluminum sheet are sequentially arranged on the surface of the high-heat-conductivity sheet after contacting.
Wherein, utilize the used heat of 2 operation in-process of electric cores as the heat source, utilize to establish the outer aluminum sheet that leaks of one deck at the shell as the cold source, can heat under the condition that has the difference in temperature, and under the battery was in cold condition, heating effect was better. The first voltage is generated by the temperature difference between the heat source and the cold source and the thermoelectric conversion module, and it should be noted that the first voltage is generally lower than the charging voltage of the energy storage module 3, and can be higher than the charging voltage of the energy storage module 3 only after being amplified by the amplifying unit.
In another embodiment, referring to fig. 8, fig. 8 is a schematic circuit structure diagram in the present embodiment, wherein a thermoelectric conversion module 110 is disposed between a heat source 100 and a heat sink 120, and the heat source 100, the heat sink 120 and the thermoelectric conversion module 110 are combined into a thermoelectric module. Optionally, the power supply further includes an amplifying module 130, the amplifying module 130 is disposed between the thermoelectric module and the energy storage module 140, and is electrically connected to the thermoelectric module and the energy storage module 140, and the amplifying module 130 is configured to amplify the first voltage and then charge the energy storage module 140. Optionally, the energy storage system further comprises a control module 150, the control module 150 is electrically connected to the energy storage module 140, and the control module 150 is configured to control the charging and discharging processes of the energy storage module 140. Optionally, the control module 150 is a circuit board, and the amplifying module 130 and the energy storage module 140 are both disposed on the circuit board.
Wherein the thermoelectric conversion module 110 is disposed between the heat source 100 and the cold source 120, wherein the thermoelectric conversion module 110 includes a plurality of sets of thermoelectric conversion units for generating the first voltage. The thermoelectric conversion module 110, the amplification module 130 and the energy storage module 140 form a loop. The energy storage module 140 is in circuit with the control module 150 and the heating sheet 160 in the heating module. Specifically, the amplifying module 130 may use an electronic component having a circuit amplifying function, so that the potential difference generated by the thermoelectric conversion module 110 is amplified, and the voltage value of the electric energy stored in the energy storage module 140 is increased. The energy storage module 140 may select various devices with power storage capability, such as a capacitor or a special low-temperature battery, and may be adaptively selected according to actual situations, which is not specifically limited in this embodiment. The control module 150 may control the charging and discharging processes of the energy storage module 140, release, adjust, and match the power stored in the energy storage module 140 when the battery cell needs to be heated, and then supply power to the heating sheet 160, and meanwhile, has a circuit protection function.
The utility model provides a battery module, include: the method comprises the following steps: the thermoelectric module comprises a battery cell, a metal sheet, a thermoelectric conversion element, a heat conducting sheet and a heating sheet; the metal sheet is positioned on one side, away from the battery core, of the heat conducting sheet; the electric core is respectively contacted with the heating sheet and the heat conducting sheet; the thermoelectric conversion elements are in contact with the heat conductive sheet and the metal sheet, respectively. The embodiment of the utility model provides a battery module, through turn into electric energy with electric core used heat after the storage in energy memory, convert the electric energy among the energy memory into the heat and provide electric core again when starting the battery under cold condition, avoided additionally using external heating equipment, realized saving battery use cost's effect.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (11)

1. A battery module, comprising: the thermoelectric module comprises a battery cell, a metal sheet, a thermoelectric conversion element, a heat conducting sheet and a heating sheet;
the metal sheet is positioned on one side, away from the battery core, of the heat conducting sheet;
the battery cell is respectively contacted with the heating sheet and the heat conducting sheet;
the thermoelectric conversion elements are in contact with the heat conductive sheet and the metal sheet, respectively.
2. The battery module according to claim 1, wherein the battery module comprises a plurality of cells arranged in parallel;
the heating sheet comprises a plurality of heating parts arranged side by side along the arrangement direction of the battery cores, first connecting parts for connecting two adjacent heating parts and a notch formed in the first connecting parts;
the heat conducting fin comprises a heat conducting part penetrating in the slot, and the heat conducting fin and the heating fin form a folding structure;
at least one electricity core is located the heat conduction portion with between the heating portion.
3. The battery module according to claim 2, wherein the thermally conductive sheet includes a second connecting portion connecting adjacent ones of the thermally conductive portions;
the second connection portion is in contact with the thermoelectric conversion element.
4. The battery module according to claim 2,
in the arrangement direction of the battery cells, the folding structure includes heat conduction portions respectively located on two opposite sides thereof.
5. The battery module according to claim 2, wherein the heating portion has a length greater than that of the heat conduction portion, and/or
The thermoelectric conversion element has a height higher than that of the thermally conductive sheet in the height direction of the battery module, and/or
The battery cell comprises a shell and a battery cell body, wherein the shell comprises an encapsulation part for coating the battery cell body and a sealing edge positioned on one side of the encapsulation part, and the sealing edge is bent towards the direction close to the battery cell body and/or is bent towards the direction close to the battery cell body
The battery cell comprises a shell and a battery cell body, wherein the shell comprises an encapsulation part for coating the battery cell body, and the encapsulation parts of the battery cells are arranged oppositely and/or are adjacent to each other
The battery module further comprises a buffer member, the buffer member is positioned between the battery core and the heating part, and/or
And the heat conducting part is positioned between the battery cell and the heat conducting part.
6. The battery module according to claim 3, wherein the battery core comprises two first side surfaces which are arranged oppositely and two second side surfaces which are arranged oppositely;
the area of the first side surface is larger than that of the second side surface;
at least one first side of electricity core with the heating portion contact.
7. The battery module of claim 6, wherein the cells comprise a first cell on a first side and a second cell on a second side opposite the first side;
two first side surfaces of the first battery cell are respectively contacted with the heat conducting part or the heating part, and/or
And the two second side surfaces of the second battery cell are respectively contacted with the first connecting part or the second connecting part.
8. The battery module according to claim 3, wherein an included angle is formed between the heat-conducting portion and the second connecting portion and/or between the heating portion and the first connecting portion, and the included angle is an arc angle or a linear angle.
9. The battery module according to claim 4, wherein at least two battery cells are accommodated between the adjacent heat conduction portions or heating portions.
10. The battery module according to claim 1, further comprising a control module and an energy storage module, wherein the control module is connected to the energy storage module, and the control module is configured to control the thermoelectric conversion element to charge the energy storage module or control the heating sheet to heat the battery cell.
11. The battery module according to claim 10, further comprising an amplifying module disposed between the thermoelectric module and the energy storage module and electrically connected to the thermoelectric module and the energy storage module, respectively, wherein the amplifying module is configured to amplify the voltage generated by the thermoelectric conversion element and then charge the energy storage module.
CN202221680358.XU 2022-06-30 2022-06-30 Battery module Active CN217641541U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202221680358.XU CN217641541U (en) 2022-06-30 2022-06-30 Battery module
PCT/CN2023/086024 WO2024001380A1 (en) 2022-06-30 2023-04-03 Cell heating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221680358.XU CN217641541U (en) 2022-06-30 2022-06-30 Battery module

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CN217641541U true CN217641541U (en) 2022-10-21

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024001380A1 (en) * 2022-06-30 2024-01-04 珠海冠宇电源有限公司 Cell heating system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024001380A1 (en) * 2022-06-30 2024-01-04 珠海冠宇电源有限公司 Cell heating system

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