CN218602676U - Battery cell and electric equipment - Google Patents
Battery cell and electric equipment Download PDFInfo
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- CN218602676U CN218602676U CN202222975862.9U CN202222975862U CN218602676U CN 218602676 U CN218602676 U CN 218602676U CN 202222975862 U CN202222975862 U CN 202222975862U CN 218602676 U CN218602676 U CN 218602676U
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- insulating film
- explosion
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- proof valve
- insulating
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- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000005611 electricity Effects 0.000 abstract description 8
- 238000009413 insulation Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000005253 cladding Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000037303 wrinkles Effects 0.000 description 3
- 238000010030 laminating Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/471—Spacing elements inside cells other than separators, membranes or diaphragms; Manufacturing processes thereof
- H01M50/474—Spacing elements inside cells other than separators, membranes or diaphragms; Manufacturing processes thereof characterised by their position inside the cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
- H01M50/497—Ionic conductivity
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
- H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
- H01M50/593—Spacers; Insulating plates
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model provides an electricity core and consumer, electricity core includes: a housing having two first sidewalls opposite in a first direction, two second sidewalls opposite in a second direction, and two third sidewalls opposite in a third direction; and a plurality of insulating films provided on the first and third sidewalls; the first direction, the second direction and the third direction are mutually vertical pairwise; the first side wall is provided with an explosion-proof valve and wall surfaces, the insulating film is arranged on at least part of the wall surfaces, and the two second side walls are provided with pole columns; the electric equipment comprises the battery cell. The utility model provides an insulating film on electric core can provide insulation protection for the casing of electric core, has improved the security performance and the reliability of electric core.
Description
Technical Field
The utility model relates to an electricity core technical field, concretely relates to electricity core and consumer.
Background
At present, the current insulating film that covers in electric core surface often processes out a hole of dodging that supplies explosion-proof valve to pass through the mode of digging the trompil in explosion-proof valve position department, and this kind of scheme of digging the hole on the insulating film inevitably needs to let the insulating film experience at least one hole process of digging, just also inevitably will increase certain manufacturing cost to the insulating piece of digging out of punching a hole also can cause certain raw materials extravagant. Furthermore, after the insulating film in the prior art is punched, when the insulating film with holes is coated on the outer surface of the battery core, the hole positions themselves may cause bad appearances such as bubbles and wrinkles, and even damage to the explosion-proof valve on the battery core in the rolling process.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an electricity core and consumer to realize reliable insulation protection to the casing of electricity core, improved the security performance and the reliability of electricity core.
In order to achieve the above purpose, the utility model provides the following technical scheme:
a battery cell, comprising:
a housing having two first sidewalls opposite in a first direction, two second sidewalls opposite in a second direction, and two third sidewalls opposite in a third direction; and
a plurality of insulating films provided on the first and third sidewalls;
the first direction, the second direction and the third direction are mutually perpendicular in pairs; and the first side wall is provided with an explosion-proof valve and wall surfaces, and the insulating film is arranged on at least part of the wall surfaces, and the two second side walls are provided with polar columns.
In some embodiments of the present invention, the insulating film includes a first insulating film and a second insulating film;
the first insulating film coats the third side wall and the first side wall without the explosion-proof valve;
the second insulating film covers the wall surface.
In some embodiments of the present invention, the first insulating film has a third portion and a fourth portion connected to each other;
the third part covers the third side wall and the first side wall which is not provided with the explosion-proof valve, and the fourth part at least partially covers the wall surface;
the fourth portion overlaps with the second insulating film on the first side wall where the explosion-proof valve is provided, and an overlapping region is formed on each of both sides in the third direction.
In some embodiments of the present invention, the distance between the explosion-proof valve and the two second side walls is greater than 0;
the second insulating films comprise two second insulating films, and the two second insulating films are respectively arranged on two sides of the explosion-proof valve in the second direction.
In some embodiments of the present invention, the first insulating film and the second insulating film further cover a portion of the second sidewall;
the post is exposed to the insulating film.
In some embodiments of the present invention, the second insulating film has a first portion and a second portion connected to each other;
the first part of the second insulating film covers the first side wall provided with the explosion-proof valve, and the second part of the second insulating film covers the second side wall.
In some embodiments of the present invention, the battery cell further comprises a third insulating film;
the third insulating film covers part of the second side wall, and the pole is exposed relative to the third insulating film.
In some embodiments of the present invention, the insulating film comprises a first insulating film and a second insulating film;
the first insulating film and the second insulating film are respectively provided with a notch, and the shape and the position of the notch correspond to the shape and the position of the explosion-proof valve;
the first insulating film and the second insulating film are respectively clamped on two sides of the shell in the third direction and respectively wrap the third side wall, and the first insulating film and the second insulating film wrap the wall surface and part of the second side wall;
the notch is located on the first insulating film and the notch is located on the second insulating film, the notches face to each other and are enclosed to form an avoiding hole, and the explosion-proof valve penetrates through the avoiding hole.
In some embodiments of the present invention, the first insulating film and the second insulating film overlap each other on two of the first side walls.
In some embodiments of the present invention, the first insulating film and the second insulating film overlap each other on two of the first side walls and two of the second side walls.
In order to achieve the above purpose, the utility model also provides the following technical scheme:
an electric device comprises the battery cell.
Compared with the prior art, the technical scheme of the utility model following beneficial effect has:
1. the utility model provides a shell of an electric core is provided with a plurality of insulating films, so as to realize reliable insulation protection for the electric core shell, improve the safety and reliability of the electric core, and simultaneously expose the pole and the explosion-proof valve without being shielded by the insulating films; moreover, compare in prior art on a monoblock insulating film dig the scheme of hole so that explosion-proof valve exposes, the utility model provides a foretell hole problem of digging can be avoided to a plurality of insulating films of split type design, has avoided the hole site that supplies explosion-proof valve to pass among the prior art can lead to the insulating film at cladding roll-in-process fold, the problem of bubble to showing when improving the productivity and having promoted the product yield, also avoided digging the material waste that the hole leads to on the monoblock insulating film, saved manufacturing cost.
2. The utility model discloses an respectively be equipped with an utmost point post on the lateral wall of both ends and be equipped with the electric core of explosion-proof valve on a lateral wall between two utmost point posts and provide a coating insulation film's design, realized guaranteeing when explosion-proof valve exposes, make the insulating film need not to punch a hole, reduce production processes, shortened the production cycle of product, reduced manufacturing cost.
3. The utility model provides an electric core and the equal easy shaping of insulating film and equipment processing that adopt have simplified production processes when guaranteeing product quality, and then improve the productivity.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a battery cell provided in a first embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a first insulating film in the battery cell in fig. 1 in an unfolded state;
FIG. 3 is an enlarged view of a portion of area A of FIG. 1;
fig. 4 is a schematic structural diagram of a battery cell provided in a second embodiment of the present disclosure;
fig. 5 is an exploded view of the cell of fig. 4.
The main reference numbers in the drawings of the specification of the present invention are as follows:
01-a first direction; 02-a second direction; 03-a third direction;
1-a shell; 11-a first side wall; 110-wall surface; 12-a second side wall; 13-a third side wall;
2-an insulating film; 21-a first insulating film; 211-third part; 212-fourth section; 22-a second insulating film; 221-a first portion; 222-a second portion; 23-a notch;
3-an explosion-proof valve; 4-pole column; 5-an overlap region; 6-avoiding hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.
The technical scheme of the utility model an electricity core and consumer are provided, detailed description is carried out respectively below. It should be noted that the following description of the embodiments is not intended to limit the preferred sequence of the embodiments of the present invention. In the following embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to related descriptions of other embodiments for parts that are not described in detail in a certain embodiment.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
In the embodiment of the present invention, "parallel" means a state in which the angle formed by a straight line and a straight line, a straight line and a plane, or a plane and a plane is-10 ° to 10 °. The term "perpendicular" means a state in which the angle formed by a straight line and a straight line, a straight line and a plane, or a plane and a plane is 80 ° to 100 °. The equal distance means that the tolerance range is-10% to 10%.
Example 1
As shown in fig. 1 and 2, in some embodiments of the present invention, an electrical core includes: a housing 1 having two first sidewalls 11 opposite in a first direction 01, two second sidewalls 12 opposite in a second direction 02, and two third sidewalls 13 opposite in a third direction 03; and an insulating film 2 provided on the first sidewall 11 and the third sidewall 13; wherein, the first direction 01, the second direction 02 and the third direction 03 are mutually vertical in pairs; the explosion-proof valve 3 and the wall surface 110 are provided on one first side wall 11, the insulating film 2 is provided on at least part of the wall surface 110, and the post 4 is provided on both second side walls 12. The design ensures that the insulating film 2 can provide reliable envelope protection for the shell 1 of the battery cell, and the safety performance of the battery cell is improved. Moreover, compare in the scheme of "digging the hole so that explosion-proof valve exposes on a monoblock insulating film" among the prior art, the utility model provides a foretell hole problem of digging can be avoided to a plurality of insulating films 2 of split type design, has avoided supplying the hole site that explosion-proof valve 3 passed among the prior art to lead to the insulating film fold, the problem of bubble to appear in cladding roll-in-process to showing when improving the productivity and having promoted the product yield, also avoided digging the material waste that the hole leads to on the monoblock insulating film, saved manufacturing cost.
As shown in fig. 1 and 2, in some embodiments of the present invention, the insulating film 2 includes a first insulating film 21 and a second insulating film 22; the first insulating film 21 covers the third side wall 13 and the one first side wall 11 where the explosion-proof valve 3 is not provided; the second insulating film 22 covers the wall surface 110. At present, the current insulating film 2 that covers in electric core surface often processes out a hole of dodging that supplies explosion-proof valve 3 to pass through the mode of digging the trompil in explosion-proof valve 3 position department, and this kind of scheme of digging the hole on insulating film 2 inevitably need let insulating film 2 experience at least one hole process of digging, also inevitably will increase certain manufacturing cost yet to the insulating piece of digging a hole also can cause certain raw materials extravagant. Moreover, after the insulating film 2 in the prior art is punched, when the insulating film 2 with holes is coated on the outer surface of the battery core, the holes themselves may cause bad appearances such as bubbles and wrinkles, and even damage to the explosion-proof valve on the battery core during the rolling process. Therefore, the utility model discloses an foretell scheme adopts two insulating films 2 of split type design to carry out the diolame protection to casing 1 of electric core, and insulating film 2 of this split type design can be when realizing reliable diolame protection for electric core and promoting electric core security, solves the not good problem of product outward appearance after foretell raw materials are extravagant, the technology is numerous and diverse, the cladding.
Obviously, the utility model provides an insulating film 2 in electric core adopts split type design, and going on of the cladding equipment process of being convenient for also can guarantee to be difficult for having played the fold when the laminating of insulating film 2, and it is more firm to bond, makes the laminating effect of insulating film 2 better, prolongs the life of electric core.
As shown in fig. 1 to 3, in some embodiments of the present invention, the first insulating film 21 has a third portion 211 and a fourth portion 212 connected to each other; the fourth part 212 is connected to the third part 211, the third part 211 covers the third side wall 13 and one first side wall 11 without the explosion-proof valve 3, and the fourth part 212 at least partially covers the wall surface 110; on the first side wall 11 provided with the explosion-proof valve 3, the fourth portion 212 overlaps the second insulating film 22, and an overlapping area 5 is formed on each of both sides in the third direction 03. The design enables the first insulating film 21 and the second insulating film 22 to achieve good and complete protection on the shell 1, and improves the film coating protection effect and reliability on the battery cell.
Specifically, as shown in fig. 3, in some embodiments of the present invention, in the third direction 03, the size of the casing 1 is a, the size of the overlapping area 5 is B, the size of the explosion-proof valve 3 is C, and B is less than or equal to (a-C)/2, so that the insulating films 2 of each split design can realize a more complete envelope protection effect on the casing 1, and the problem of poor appearance such as wrinkles due to poor size matching and accumulation can not occur.
As shown in fig. 1, in some embodiments of the present invention, the distance between the explosion-proof valve 3 and the two second sidewalls 12 is greater than 0; for example, the explosion-proof valve 3 may be disposed at a central position of the first sidewall 11 in the second direction 02, the second insulating film 22 includes two, and the two second insulating films 22 are respectively disposed at both sides of the explosion-proof valve 3 in the second direction 02. The above-mentioned explosion-proof valve 3 and the battery cell with the explosion-proof valve 3 can be adapted to more design solutions with special requirements, and the above-mentioned two second insulating films 22 can provide reliable protection for the housing 1 of the battery cell, so as to improve the safety of the battery cell.
As shown in fig. 1, in some embodiments of the present invention, the first insulating film 21 and the second insulating film 22 further cover a portion of the second sidewall 12; the post 4 is exposed to the insulating film 2. It is understood that the first insulating film 21 and the second insulating film 22 each extend out by a portion to cover and protect the second side wall 12 provided with the terminal post 4, so as to further enhance the degree of protection of the cell, and thus further enhance the safety of the cell.
As shown in fig. 1, in some embodiments of the present invention, the second insulating film 22 has a first portion 221 and a second portion 222 connected to each other; the first portion 221 of the second insulating film 22 covers the wall surface 110, and the second portion 222 of the second insulating film 22 covers the second sidewall 12. It is understood that the first portion 221 of the second insulating film 2 provides protection to the first side wall 11 provided with the explosion-proof valve 3, and the second portion 222 of the second insulating film 2 provides protection to the second side wall 12 provided with the pole 4.
As shown in fig. 1, in some embodiments of the present invention, the first insulating film 21 further has a fifth portion 213 extending along the second direction 02, and the fifth portion 213 covers the second sidewall 12 of the portion, so that the insulating film 2 covers the housing 1 of the electric core more completely, and the insulating protection effect on the electric core is further improved.
In some embodiments of the present invention, as shown in fig. 1, the first portion 221 and the second portion 222 are connected to each other, preferably, the first portion 221 and the second portion 222 can be disposed perpendicular to each other to adapt to the first side wall 11 and the second side wall 12 perpendicular to each other, so that the second insulating film 22 and the housing 1 are adapted to each other in shape, which facilitates fool-proofing during the processing process, improves the productivity, and enables the battery cell to obtain a better envelope protection effect.
In some embodiments of the present invention, the battery cell further comprises a third insulating film (not shown); the third insulating film is coated on part of the second side wall 12, and the pole 4 is exposed relative to the third insulating film; the third insulating film can provide an envelope protection effect for the second sidewall 12. Specifically, the third insulating film may overlap with the second portion 222 of the second insulating film 22 described above to further enhance the envelope protection effect for the second sidewall 12.
As shown in fig. 4 and 5, in some embodiments of the present invention, the insulating film 2 includes a first insulating film 21 and a second insulating film 22; a notch 23 is respectively arranged on the first insulating film 21 and the second insulating film 22, and the shape and the position of the notch 23 correspond to the shape and the position of the explosion-proof valve 3; the first insulating film 21 and the second insulating film 22 are respectively sandwiched between two sides of the housing 1 in the third direction 03 and respectively cover a third side wall 13, and the first insulating film 21 and the second insulating film 22 both cover the wall surface 110 and part of the second side wall 12; the notch 23 on the first insulating film 21 and the notch 23 on the second insulating film 22 face each other and enclose to form an avoiding hole 6, and the explosion-proof valve 3 penetrates through the avoiding hole 6. As shown in fig. 4 and 5, the avoiding hole 6 is formed by enclosing two independent and separately designed first insulating films 21 and second insulating films 22, which is different from the prior art that an opening is dug in a whole insulating film 2. It can be understood that the two insulating films 2 of the above mentioned sandwich type design can sandwich the shell 1 at two sides of the shell 1 to form the protection of the envelope, and solve the problem of bad appearance such as fold and bubble caused by "digging hole for the envelope" in the existing envelope solution, and also solve the problem of material waste caused by digging hole.
As shown in fig. 4, in some embodiments of the present invention, on the two first side walls 11 and the two second side walls 12, the first insulating film 21 and the second insulating film 22 are overlapped with each other to form a more reliable envelope protection for the casing 1, thereby improving the safety of the battery cell. Specifically, as shown in fig. 4, the first insulating film 21 and the second insulating film 22 overlap each other on the first sidewall 11 and form an overlap region 5; further, the first insulating film 21 and the second insulating film 22 are overlapped with each other and form another overlapped portion (not numbered) on the second side wall 12 to achieve a more complete protective effect of the insulating envelope for the cell casing 1.
It can be understood that the battery core and the insulating film adopted by the battery core are easy to form, assemble and process, the production process is simplified while the product quality is ensured, and the productivity benefit is improved.
Example 2
An electric device includes the battery cell in embodiment 1, and may specifically be an electric vehicle.
The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims. In addition, the description has used specific examples to explain the principle and the implementation of the present invention, and the description of the above embodiments is only used to help understand the method and the core idea of the present invention, and the content of the description should not be understood as the limitation of the present invention.
Claims (10)
1. A battery cell, comprising:
a housing (1) having two first side walls (11) opposite in a first direction (01), two second side walls (12) opposite in a second direction (02), and two third side walls (13) opposite in a third direction (03); and
a plurality of insulating films (2) provided on the first and third sidewalls (11, 13);
wherein the first direction (01), the second direction (02) and the third direction (03) are mutually vertical pairwise; an explosion-proof valve (3) and a wall surface (110) are arranged on one first side wall (11), the insulating film (2) is arranged on at least part of the wall surface (110), and two second side walls (12) are provided with poles (4).
2. The electrical core of claim 1, wherein the insulating film (2) comprises a first insulating film (21) and a second insulating film (22);
the first insulating film (21) covers the third side wall (13) and the first side wall (11) not provided with the explosion-proof valve (3);
the second insulating film (22) covers the wall surface (110).
3. The cell of claim 2, wherein the first insulating film (21) has a third portion (211) and a fourth portion (212) connected to each other;
the third part (211) covers the third side wall (13) and the first side wall (11) not provided with the explosion-proof valve (3), and the fourth part (212) at least partially covers the wall surface (110);
the fourth portion (212) overlaps the second insulating film (22) on the first side wall (11) where the explosion-proof valve (3) is provided, and an overlapping region (5) is formed on each of both sides in the third direction (03).
4. The electrical core according to claim 3, wherein the distance between the explosion-proof valve (3) and both of the second side walls (12) is greater than 0;
the number of the second insulating films (22) is two, and the two second insulating films (22) are respectively arranged on two sides of the explosion-proof valve (3) in the second direction (02).
5. The cell of claim 2, wherein the first insulating film (21) and the second insulating film (22) further coat a portion of the second sidewall (12);
the electrode post (4) is exposed to the insulating film (2).
6. The cell of claim 5, wherein the second insulating film (22) has a first portion (221) and a second portion (222) connected to each other;
the first part (221) of the second insulating film (22) is covered on the first side wall (11) provided with the explosion-proof valve (3), and the second part (222) of the second insulating film (22) is covered on the second side wall (12).
7. The cell of any of claims 2-6, further comprising a third insulating film;
the third insulating film covers part of the second side wall (12), and the pole (4) is exposed relative to the third insulating film.
8. The electrical core of claim 1, wherein the insulating film (2) comprises a first insulating film (21) and a second insulating film (22);
a notch (23) is respectively arranged on the first insulating film (21) and the second insulating film (22), and the shape and the position of the notch (23) correspond to the shape and the position of the explosion-proof valve (3);
the first insulating film (21) and the second insulating film (22) are respectively arranged on two sides of the shell (1) in the third direction (03) and respectively wrap the third side wall (13), and the first insulating film (21) and the second insulating film (22) wrap the wall surface (110) and part of the second side wall (12);
be located on first insulating film (21) breach (23) with be located on second insulating film (22) breach (23) are relative and enclose and close formation dodge hole (6) towards each other, explosion-proof valve (3) pass dodge hole (6).
9. The electrical core according to claim 8, wherein the first insulating film (21) and the second insulating film (22) overlap each other on both of the first side walls (11).
10. An electrical consumer, characterized in that the electrical consumer comprises a cell according to any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222975862.9U CN218602676U (en) | 2022-11-08 | 2022-11-08 | Battery cell and electric equipment |
| PCT/CN2023/115633 WO2024098898A1 (en) | 2022-11-08 | 2023-08-30 | Battery cell and electric device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222975862.9U CN218602676U (en) | 2022-11-08 | 2022-11-08 | Battery cell and electric equipment |
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| CN218602676U true CN218602676U (en) | 2023-03-10 |
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| CN202222975862.9U Active CN218602676U (en) | 2022-11-08 | 2022-11-08 | Battery cell and electric equipment |
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| Country | Link |
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| CN (1) | CN218602676U (en) |
| WO (1) | WO2024098898A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024098898A1 (en) * | 2022-11-08 | 2024-05-16 | 欣旺达动力科技股份有限公司 | Battery cell and electric device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100974570B1 (en) * | 2007-07-05 | 2010-08-06 | 주식회사 엘지화학 | Battery Pack Employed with Label of High Strength for Protecting the Outside of Pack |
| CN206388740U (en) * | 2017-01-25 | 2017-08-08 | 宁德时代新能源科技股份有限公司 | Dielectric film and the core strueture for coating the dielectric film |
| CN211828843U (en) * | 2020-04-03 | 2020-10-30 | 欣旺达电动汽车电池有限公司 | Battery module |
| CN215869713U (en) * | 2021-08-24 | 2022-02-18 | 成都市银隆新能源有限公司 | Power battery |
| CN216015604U (en) * | 2021-11-02 | 2022-03-11 | 中航锂电科技有限公司 | Battery with a battery cell |
| CN218788489U (en) * | 2022-10-17 | 2023-04-04 | 欣旺达电动汽车电池有限公司 | Single battery, battery pack and electric automobile |
| CN218602676U (en) * | 2022-11-08 | 2023-03-10 | 欣旺达电动汽车电池有限公司 | Battery cell and electric equipment |
-
2022
- 2022-11-08 CN CN202222975862.9U patent/CN218602676U/en active Active
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- 2023-08-30 WO PCT/CN2023/115633 patent/WO2024098898A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024098898A1 (en) * | 2022-11-08 | 2024-05-16 | 欣旺达动力科技股份有限公司 | Battery cell and electric device |
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| WO2024098898A1 (en) | 2024-05-16 |
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Address after: 518000 1-2 Floor, Building A, Xinwangda Industrial Park, No. 18 Tangjianan Road, Gongming Street, Guangming New District, Shenzhen City, Guangdong Province Patentee after: Xinwangda Power Technology Co.,Ltd. Address before: 518107 1-2 Floor, Building A, Xinwangda Industrial Park, No. 18 Tangjianan Road, Gongming Street, Guangming New District, Shenzhen City, Guangdong Province Patentee before: SUNWODA ELECTRIC VEHICLE BATTERY Co.,Ltd. |