CN114079076A - Battery module manufacturing process, battery module and electronic equipment - Google Patents
Battery module manufacturing process, battery module and electronic equipment Download PDFInfo
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- CN114079076A CN114079076A CN202010801002.6A CN202010801002A CN114079076A CN 114079076 A CN114079076 A CN 114079076A CN 202010801002 A CN202010801002 A CN 202010801002A CN 114079076 A CN114079076 A CN 114079076A
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- cell
- electric core
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000004806 packaging method and process Methods 0.000 claims abstract description 51
- 239000003792 electrolyte Substances 0.000 claims abstract description 43
- 239000011148 porous material Substances 0.000 claims abstract description 41
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 28
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 30
- 239000008358 core component Substances 0.000 claims description 17
- 238000005538 encapsulation Methods 0.000 claims description 13
- 230000000712 assembly Effects 0.000 claims description 12
- 238000000429 assembly Methods 0.000 claims description 12
- 238000000465 moulding Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000002791 soaking Methods 0.000 claims description 2
- 210000004027 cell Anatomy 0.000 description 43
- 238000005755 formation reaction Methods 0.000 description 17
- 239000012212 insulator Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000003850 cellular structure Anatomy 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
Images
Classifications
-
- 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
- H01M10/04—Construction or manufacture in general
- H01M10/0445—Multimode batteries, e.g. containing auxiliary cells or electrodes switchable in parallel or series connections
-
- 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
- H01M10/04—Construction or manufacture in general
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The disclosure relates to a battery module manufacturing process, a battery module and electronic equipment, and belongs to the technical field of batteries. The manufacturing process of the battery module comprises the following steps: packaging the battery core by using an insulating piece, wherein the insulating piece is provided with pores, and the material of the insulating piece comprises a hole closing agent; connecting at least two encapsulated cells in series; placing the serially connected battery cores in a packaging shell, injecting electrolyte into the packaging shell, and carrying out formation treatment on the serially connected battery cores; heating the insulation until the pore closing agent blocks the pores.
Description
Technical Field
The disclosure relates to the technical field of batteries, in particular to a battery module manufacturing process, a battery module and electronic equipment.
Background
Fast charging is an important development trend of electronic devices such as mobile phones. The charging speed is usually increased by increasing the charging power. In the high-power charging technology, a high-voltage and low-current charging mode is adopted, and the resistance heating of a charging circuit is reduced. Therefore, it is necessary to improve the voltage endurance of the battery module to adapt to the high power charging technology.
Disclosure of Invention
The disclosure provides a battery module manufacturing process, a battery module and an electronic device so as to adapt to a high-power charging technology.
In a first aspect, an embodiment of the present disclosure provides a battery module manufacturing process, where the process includes:
packaging the battery core by using an insulating piece, wherein the insulating piece is provided with pores, and the material of the insulating piece comprises a hole closing agent;
connecting at least two encapsulated cells in series;
placing the serially connected battery cores in a packaging shell, injecting electrolyte into the packaging shell, and carrying out formation treatment on the serially connected battery cores;
heating the insulation until the pore closing agent blocks the pores.
In one embodiment, the battery cell comprises a pole piece and a pole lug connected with the pole piece; adopt insulating part encapsulation electricity core, include:
and adopting the insulating piece to form a packaging cavity for packaging the pole piece, wherein the pole lug extends to the outside of the packaging cavity.
In one embodiment, the tabs include a positive tab and a negative tab, and the cells packaged in series include:
and connecting a positive electrode lug of one of the cells with a negative electrode lug of the other cell in the two cells connected in series.
In one embodiment, before the performing the formation processing on the battery cell, the method includes:
and soaking the insulating part and the battery cell in the electrolyte for a set time.
In one embodiment, said heating said insulation to said closing agent blocks said pores, comprising:
and baking the packaging shell, the insulating piece and the battery cell in an environment with the temperature of more than or equal to the closed pore temperature of the closed pore agent.
In one embodiment, the packaging case is a soft packaging case, and after the heating the insulating member, the packaging case further includes:
exhausting gas generated in the formation process in the packaging shell;
and carrying out packaging molding treatment on the packaging shell.
In a second aspect, an embodiment of the present disclosure provides a battery module, which is manufactured by the process provided in the first aspect, and the battery module includes: at least two electric core components connected in series, and a packaging shell for packaging the electric core components connected in series;
in the serially-connected electric core assemblies, each of the electric core assemblies comprises:
an electric core;
the insulating piece forms an encapsulation cavity for encapsulating the battery cell; and
and the electrolyte is encapsulated in the encapsulation cavity.
In one embodiment, the cell includes: the pole piece and the pole ear connected with the pole piece;
the pole piece is arranged in the packaging cavity, and the pole lug extends out of the packaging cavity;
in the electric core components connected in series, the lugs of the adjacent electric core components are connected.
In one embodiment, the insulation seal has pores, and the material of the insulation seal comprises a pore closing agent, and the pores are blocked by the pore closing agent.
In a third aspect, an embodiment of the present disclosure provides an electronic device, which includes the battery module provided in the second aspect.
The battery module manufacturing process, the battery module and the electronic equipment provided by the disclosure at least have the following beneficial effects:
according to the manufacturing process of the battery module, the series connection and the formation treatment of the cell components are firstly carried out, and then the pores of the insulating part are plugged through clearing heat. The battery module manufactured by the process is provided with at least two serially-connected electric core components packaged by one packaging shell. The number of independent packaging structures of the battery module is reduced, so that the structure of the whole battery module is more compact. And then, reduce battery module's volume, improve battery module's energy density. And electrolyte is encapsulated in each electric core component, and the electrolyte among the electric core components connected in series does not circulate mutually. In this way, electrolyte in each electric core component is in single electric core voltage environment, and the safety in use of the battery module is guaranteed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a schematic structural view illustrating a battery module according to an exemplary embodiment;
fig. 2 is a flow chart illustrating a process for fabricating a battery module according to an exemplary embodiment;
fig. 3 is a flowchart illustrating a process of manufacturing a battery module according to another exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of the terms "a" or "an" and the like in the description and in the claims of this disclosure do not denote a limitation of quantity, but rather denote the presence of at least one. Unless otherwise indicated, the word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprises" or "comprising" and its equivalents, and does not exclude other elements or items. 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. As used in the specification and claims of this disclosure, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein is meant to encompass any and all possible combinations of one or more of the associated listed items.
In some embodiments, the battery module includes at least two independently packaged battery modules, and the at least two battery modules are connected in series to improve the voltage endurance of the entire battery module. However, such a method has a drawback that the battery module is bulky and has a low energy density.
Based on the above problems, the embodiment of the present disclosure provides a battery module manufacturing process, a battery module and an electronic device, so as to solve the defects of a high voltage withstanding battery module group, such as large volume and low energy density.
In a first aspect, the disclosed embodiments provide a battery module. Fig. 1 is a schematic structural view illustrating a battery module according to an exemplary embodiment. As shown in fig. 1, the battery module includes: at least two electrical core assemblies 100, and an encapsulating housing 200. At least two electric core assemblies 100 are connected in series, and the package housing 200 is formed with a cavity 210 to accommodate at least two electric core assemblies 100 connected in series.
In the serial electric core assemblies 100, each electric core assembly 100 includes: a battery cell 110, an insulator 120, and an electrolyte 130.
The battery cell 110 includes a pole piece 111, and a tab 112 connected to the pole piece 111. The pole piece 111 includes a positive pole piece and a negative pole piece, which are stacked and separated by a separator. The tabs 112 include a positive tab connected to the positive plate and a negative tab connected to the negative plate.
The insulator 120 forms an encapsulation cavity encapsulating the cell 110. The electrolyte of the pole piece 111 of the battery cell 110 is encapsulated in the encapsulation cavity. That is, the positive electrode tab and the negative electrode tab are immersed in the electrolyte 130.
The tab 112 extends from the package cavity formed by the insulator 120, and the portion of the tab 112 outside the package cavity is used for communicating with an external load or power source. When the battery assembly 100 works, the positive electrode plate and the negative electrode plate of the battery 110 generate ion migration through the electrolyte, so as to realize charging and discharging.
In the electric core assemblies 100 connected in series, the adjacent electric core assemblies 100 are connected only by the tabs. And, the electrolyte 130 in each cell assembly 100 is encapsulated in the encapsulation cavity of the respective insulator 120.
In this way, during the operation of the whole battery module, the voltage carried by the electrolyte 130 in each cell assembly 100 is the voltage between the positive electrode tab and the negative electrode tab of the cell assembly 100. That is, the electrolyte 130 of each cell assembly 100 is exposed to a single cell voltage environment through the insulator 130. By adopting the mode, the voltage born by the electrolyte 130 of each cell assembly 100 does not exceed the withstand voltage of the electrolyte, and the safety of the battery module is guaranteed.
Therein, it is further noted that the insulating member 120 has pores that allow fluid to pass through. Accordingly, electrolyte outside the insulator 120 may penetrate the insulator 120 into the package cavity. Alternatively, the insulating member 120 is made of an insulating film having a porous structure, and the porous structure of the insulating film forms pores on the insulating member 120. In addition, the thickness of the insulating member 120 can be reduced by using the insulating film, so that the battery module can achieve a better structural integration level, and the volume of the battery module can be further reduced.
Also, the material of the insulator 120 includes a closed cell agent. The cell closing agent expands in volume when heated to a cell closing temperature, thereby closing the pores in the insulation 120. When the pore closing agent blocks the pores, the electrolyte 130 can be encapsulated in the encapsulation cavity of the insulating member 120. In this way, the difficulty in manufacturing the entire battery module can be reduced, and the manufacturing process of the battery module will be described in detail below.
In the embodiment of the present disclosure, by means of encapsulating the electrolyte 130 and the battery cell 110 by the insulating member 120, under the condition of ensuring the safety of the battery module, at least two battery cell assemblies 100 are connected in series, so that the voltage withstanding capability of the whole battery module is improved, and the battery module is suitable for a high-power charging and discharging technology. And, at least two electric core assemblies 100 of series connection encapsulate in a encapsulation shell 200, have reduced the independent packaging structure's of battery module quantity for the structure of whole battery module is more compact, reduces the volume of battery module, improves the energy density of battery module.
In a second aspect, the disclosed embodiments provide a process for manufacturing a battery module. Fig. 2 is a flow chart illustrating a process for fabricating a battery module according to an exemplary embodiment. As shown in fig. 2, the process includes:
step S201, packaging the battery cell by using an insulating part, wherein the insulating part is provided with pores, and the material of the insulating part comprises a hole closing agent.
The battery cell comprises a pole piece and a pole lug connected with the pole piece. Step S201 specifically includes: an insulating part is adopted to form a packaging cavity for packaging the pole piece, and a pole lug of the battery core extends to the outside of the packaging cavity.
Alternatively, the insulating member is made of an insulating film having a porous structure. The material of the insulating film includes a pore closing agent. For example, the pore closing agent is a high-temperature pore closing agent, and the high-temperature pore closing agent expands in volume when heated to a pore closing temperature, thereby blocking pores on the insulating film.
And S202, connecting at least two packaged battery cores in series.
The tab comprises a positive tab and a negative tab, and step 203 specifically comprises: and connecting the positive electrode lug of one battery cell with the negative electrode lug of the other battery cell. Optionally, the positive tab of one cell is welded to the negative tab of another cell.
Step S203, arranging the serially connected battery cores in a packaging shell, injecting electrolyte into the packaging shell, and carrying out formation treatment on the serially connected battery cores.
Because the insulating part has the hole, so the electrolyte that pours into in the encapsulation shell can get into the insulating part inside through the hole of insulating part, and then the electric core of contact encapsulation in the insulating part.
Before the formation treatment of the battery core, the insulating part and the battery core are soaked in the electrolyte for a set time. Alternatively, the set time period is 24 hours, 36 hours, or 48 hours. The set time is set according to the thickness of the battery cell, and the thicker the thickness of the battery cell is, the longer the set time is, so that the battery cell is ensured to be fully contacted with the electrolyte to carry out the formation reaction.
In the formation process, the electrode plate in the battery cell reacts with the electrolyte at the solid-liquid interface, so as to form a Solid Electrolyte Interface (SEI) film on the surface of the electrode plate of the battery cell. The SEI film can stably exist in an electrolyte, and is an excellent conductor of lithium ions, which can be freely inserted and extracted through the passivation layer. The battery cell has the advantages that the cycle performance and the service life of the battery cell can be improved by forming the SEI film on the surface of the pole piece.
In the formation process, the pores in the insulating film of the electric core assembly are not closed, and thus the electrolyte can flow through the pores. At this time, the electrolyte in the package housing is in a full cell voltage environment. In the embodiment of the disclosure, the low-voltage formation treatment is performed by using a voltage lower than the highest withstand voltage (for example, 5V) of the electrolyte, so as to avoid exceeding the highest withstand voltage of the electrolyte and ensure the process safety. And, carry out step S203 under the condition that the hole has not been sealed in the insulating film, and at least two electric core subassemblies are established ties, can become the processing to at least two electric core subassemblies simultaneously, improve whole technological efficiency.
In the embodiments of the present disclosure, the formation process may be selected as an open formation process or a closed formation process. For example, the packaging shell is a soft package shell, and when the battery is a soft package battery, a closed chemical conversion treatment can be adopted, and at the moment, the liquid injection port of the electric core assembly is in a sealed state. The packaging shell is a hard shell, and under the condition that the battery is a hard battery, opening formation treatment can be adopted optionally, and the liquid injection port of the electric core component is in an open state.
And S204, heating the insulating piece until the pore closing agent blocks the pores.
The hole closing agent is a high-temperature hole closing agent, and the hole closing agent expands in volume when heated in the step S204, so that the pores on the insulating part are blocked. At this moment, electrolyte is encapsulated in the inside of insulating part for electrolyte in every battery pack is in single electric core voltage environment, avoids in the battery module use electrolyte to bear the voltage that surpasss its withstand voltage value, and guarantee module safety.
Optionally, in step S204, the package housing, the insulating member and the battery cell are baked in an environment with a temperature greater than or equal to a cell closing temperature of the cell closing agent. That is, the entire battery module is baked. The specific baking temperature and baking time can be determined according to the surface area of the insulating part and the content of the pore closing agent in the insulating part.
In one embodiment, fig. 3 is a flow chart illustrating a battery module manufacturing process according to another exemplary embodiment. After step S204, the process further includes:
and S205, exhausting the gas and the electrolyte with the set amount generated in the formation treatment process in the packaging shell.
In the chemical treatment, the chemical reaction between the pole piece and the electrolyte generates gas, and the gas needs to be extracted. In order to ensure that the chemical conversion process is performed smoothly, a large amount of electrolyte is injected in step S203, and the excess electrolyte needs to be removed after step S203. In particular, when the closed pore formation treatment is employed in step S203, it is necessary to discharge the gas generated by the reaction in step S205.
It should be noted that, after the insulating member hole is plugged in step 204, the air exhaust and liquid drainage step is performed, so that excessive electrolyte drainage is effectively avoided, and the service performance of the battery module is further ensured.
And step S206, carrying out packaging molding processing on the packaging shell.
For the pouch battery module, an unnecessary portion of the package case (e.g., a portion where the liquid pouring port is provided) is removed in step S206 to form a battery module of a predetermined shape. In the case of the hard battery module, the sealing case is sealed in step S206 to form a sealed case body.
According to the manufacturing process of the battery module, the electric core assembly is connected in series and is subjected to formation treatment before the hole of the insulating part is plugged, and air suction and forming treatment are performed after the hole of the insulating part is plugged. The battery module manufactured by the process is provided with at least two serially-connected electric core components packaged by one packaging shell. The number of independent packaging structures of the battery module is reduced, the structural compactness of the whole battery module is improved, the size of the battery module is reduced, and the energy density of the battery module is improved. And electrolyte is encapsulated in each electric core component, and the electrolyte among the electric core components connected in series does not circulate mutually. In this way, electrolyte in each electric core component is in single electric core voltage environment, and the safety in use of the battery module is guaranteed.
In a third aspect, an embodiment of the present disclosure further provides an electronic device, where the electronic device includes the battery module provided in the first aspect. Among them, electronic devices include but are not limited to: smart phones, tablet computers, desktop/laptop/handheld computers, notebook computers, ultra-mobile personal computers (UMPCs), Personal Digital Assistants (PDAs), Augmented Reality (AR)/Virtual Reality (VR) devices.
The electronic equipment provided by the embodiment of the disclosure adopts the battery module to support high-power charging, improves the charging efficiency and optimizes the user experience. And the battery module has smaller volume and higher energy density, and further optimizes the charge and discharge performance of the electronic equipment.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
Claims (10)
1. A battery module manufacturing process is characterized by comprising the following steps:
packaging the battery core by using an insulating piece, wherein the insulating piece is provided with pores, and the material of the insulating piece comprises a hole closing agent;
connecting at least two encapsulated cells in series;
placing the serially connected battery cores in a packaging shell, injecting electrolyte into the packaging shell, and carrying out formation treatment on the serially connected battery cores;
heating the insulation until the pore closing agent blocks the pores.
2. The process of claim 1, wherein the cell comprises a pole piece and a tab connected to the pole piece; adopt insulating part encapsulation electricity core, include:
and adopting the insulating piece to form a packaging cavity for packaging the pole piece, wherein the pole lug extends to the outside of the packaging cavity.
3. The process of claim 2, wherein the tabs comprise a positive tab and a negative tab, and the cells packaged in series comprise:
and connecting a positive electrode lug of one of the cells with a negative electrode lug of the other cell in the two cells connected in series.
4. The process of claim 1, wherein before the formation treatment of the battery cell, the process comprises:
and soaking the insulating part and the battery cell in the electrolyte for a set time.
5. The process of claim 1, wherein said heating said insulation to said closed cell agent blocks said pores comprises:
and baking the packaging shell, the insulating piece and the battery cell in an environment with the temperature of more than or equal to the closed pore temperature of the closed pore agent.
6. The process of claim 1, wherein said packaging shell is a soft-pack shell, further comprising, after said heating said insulation:
exhausting gas generated in the formation process in the packaging shell;
and carrying out packaging molding treatment on the packaging shell.
7. A battery module manufactured by the process according to any one of claims 1 to 6, comprising: at least two electric core components connected in series, and a packaging shell for packaging the electric core components connected in series;
in the serially-connected electric core assemblies, each of the electric core assemblies comprises:
an electric core;
the insulating piece forms an encapsulation cavity for encapsulating the battery cell; and
and the electrolyte is encapsulated in the encapsulation cavity.
8. The battery module of claim 7, wherein the cells comprise: the pole piece and the pole ear connected with the pole piece;
the pole piece is arranged in the packaging cavity, and the pole lug extends out of the packaging cavity;
in the electric core components connected in series, the lugs of the adjacent electric core components are connected.
9. The battery module according to claim 8, wherein the insulating seal member has pores, and the material of the insulating member includes a cell closing agent, and the pores are closed by the cell closing agent.
10. An electronic device, characterized in that the electronic device comprises the battery module according to any one of claims 7 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010801002.6A CN114079076A (en) | 2020-08-11 | 2020-08-11 | Battery module manufacturing process, battery module and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010801002.6A CN114079076A (en) | 2020-08-11 | 2020-08-11 | Battery module manufacturing process, battery module and electronic equipment |
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| CN114079076A true CN114079076A (en) | 2022-02-22 |
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| CN1499664A (en) * | 2002-11-07 | 2004-05-26 | �ղ��Զ�����ʽ���� | Bipolar cell |
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| CN201838680U (en) * | 2010-10-30 | 2011-05-18 | 比亚迪股份有限公司 | Flexible packaging battery |
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