CN218919203U - Battery, battery module and electric equipment - Google Patents
Battery, battery module and electric equipment Download PDFInfo
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- CN218919203U CN218919203U CN202223439177.0U CN202223439177U CN218919203U CN 218919203 U CN218919203 U CN 218919203U CN 202223439177 U CN202223439177 U CN 202223439177U CN 218919203 U CN218919203 U CN 218919203U
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- 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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Abstract
The utility model discloses a battery, a battery module and electric equipment, wherein the battery comprises a shell, and a containing cavity for containing a battery core is formed in the shell; wherein the casing is formed with first wall, is provided with outside convex bulge on the first wall, is formed with the chamber that converges with holding the chamber intercommunication in the bulge, and the surface of bulge is provided with the communication structure of optional chamber and outside intercommunication that converges. According to the battery disclosed by the utility model, the communication structure is arranged on the outer surface of the protruding part, so that the protruding part has strong deformation resistance, the deformation quantity is reduced to increase the pressure acting on the communication structure, the communication structure is ensured to timely communicate the converging cavity with the outside, the explosion-proof pressure relief reaction is sensitive, and the safety performance is high.
Description
Technical Field
The utility model relates to the field of batteries, in particular to a battery, a battery module and electric equipment.
Background
In the related art, in order to improve the energy density of the battery, the wall thickness of the shell of the battery core is thinner and thinner, and the notch explosion-proof groove is directly processed on the shell, in the use process, the shell can expand firstly due to low thin strength of the shell, and the shell expands to absorb energy, so that the gas pressure acting on the explosion-proof mark cannot cause the explosion-proof mark to explode in time, the pressure release of the battery is not in time, and the safety performance is poor.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. To this end, an object of the present utility model is to propose a battery. According to the battery disclosed by the utility model, the communication structure is arranged on the outer surface of the protruding part, so that the protruding part has strong deformation resistance, the deformation quantity is reduced to increase the pressure acting on the communication structure, the communication structure is ensured to timely communicate the converging cavity with the outside, the explosion-proof pressure relief reaction is sensitive, and the safety performance is high.
The utility model also provides a battery module with the battery.
The utility model further provides electric equipment with the battery module.
The battery according to the present utility model includes: the battery cell comprises a shell, wherein an accommodating cavity for accommodating the battery cell is formed in the shell; the shell is provided with a first wall, a protruding part protruding outside is arranged on the first wall, a confluence cavity communicated with the accommodating cavity is formed in the protruding part, and a communication structure capable of selectively communicating the confluence cavity with the outside is arranged on the outer surface of the protruding part.
According to the battery, the first wall is provided with the protruding part protruding outwards, and the protruding part protrudes outwards of the battery, so that the battery core density is prevented from being influenced due to the fact that the protruding part occupies the space of the accommodating cavity; meanwhile, the bulge has high rigidity, strong deformation resistance, small deformation amount and less energy absorption, so that the pressure acting on the bulge is increased; the inside gas of battery flows out the battery through converging the cavity to carry out the pressure release to the battery, through set up communication structure at the surface of bulge, ensure that communication structure in time will converge cavity and outside intercommunication under the effect of pressure, improve communication structure's response speed, ensure the timely pressure release of battery.
According to some embodiments of the utility model, the communication structure is configured as a scored area disposed on an outer surface of the protrusion, the scored area having a score disposed therein.
According to some embodiments of the utility model, the scoring comprises: and the first notch and the second notch are arranged in an intersecting manner.
According to some embodiments of the utility model, the first score and the second score are each configured as a plurality and one of the first scores intersects at least the plurality of the second scores.
According to some embodiments of the utility model, the direction of extension of the first score is orthogonal to the direction of extension of the second score.
According to some embodiments of the utility model, the end of the first score is connected with the end of the second score.
According to some embodiments of the utility model, the score is configured as a combination of one or more of a straight line, a curved line, and a broken line.
According to some embodiments of the utility model, the battery further comprises: the battery cell is accommodated in the accommodating cavity, and at least part of the surface of the battery cell is arranged at intervals with the first wall and is opposite to the converging cavity.
The battery module according to the present utility model is briefly described below.
The battery module according to the present utility model includes the battery described in any one of the embodiments. Because the battery module according to the utility model comprises the battery in any one of the embodiments, when the battery module is in thermal runaway, the gas in the battery can be timely discharged, the gas in the battery module is increased, the pressure is increased, the explosion-proof structure of the battery module responds to pressure relief in time, and the explosion of the battery module is avoided.
The consumer according to the utility model is briefly described below.
The electric equipment comprises the battery module in any embodiment. Because the electric equipment comprises the battery module in any embodiment, when the battery module is in thermal runaway, the communication structure of the battery responds to pressure relief in time, so that the time of chain reaction caused by the thermal runaway of the battery is delayed, the influence degree of the thermal runaway is reduced, and sufficient time is provided for users to take emergency measures.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a schematic view of a battery structure according to an embodiment of the present utility model;
FIG. 2 is a top view of a battery according to an embodiment of the utility model;
fig. 3 is a front view of a battery according to an embodiment of the present utility model.
Reference numerals:
a battery 1;
a housing 11, a first wall 111;
a projection 12;
the communication structure 13, the first score 131, the second score 132.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
A battery 1 according to an embodiment of the present utility model is described below with reference to fig. 1 to 3.
As shown in fig. 1 and 2, a battery 1 according to the present utility model includes a case 11, and a housing chamber for housing a battery cell is formed in the case 11; wherein the housing 11 is formed with a first wall 111, a protruding portion 12 protruding from the outside is provided on the first wall 111, a confluence cavity communicating with the accommodating cavity is formed in the protruding portion 12, and a communication structure 13 selectively communicating the confluence cavity with the outside is provided on an outer surface of the protruding portion 12.
In the related art, in order to improve the energy density of a battery, the shell of the battery is thin and low in strength, when the battery is out of control, the shell of the battery expands and absorbs energy, the response speed of an explosion-proof pressure release structure is influenced, the pressure release of the battery is not timely, and the safety performance is poor.
For this reason, in the battery 1 of the present application, the first wall 111 is provided with the protruding portion 12 protruding from the outside, so that the protruding portion 12 protrudes to the outside of the battery 1, and the influence of the cell density due to the space occupied by the protruding portion 12 in the accommodating cavity is avoided; meanwhile, the bulge 12 has high rigidity and strong deformation resistance, the bulge 12 has small deformation and less energy absorption, so that the pressure acting on the bulge 12 is increased; the inside gas of battery 1 flows out the battery through converging the cavity to carry out the pressure release to battery 1, through set up communication structure 13 at the surface of bulge 12, ensure that communication structure 13 in time will converge cavity and outside intercommunication under the effect of pressure, improve communication structure 13's response speed, ensure the timely pressure release of battery 1.
Therefore, when the battery 1 of this application is thermal runaway, the communication structure 13 in time communicates the chamber that converges with outside, and explosion-proof pressure release reaction is sensitive, and the security performance is high.
According to some embodiments of the present utility model, the communication structure 13 is configured as a scored area provided on the outer surface of the protrusion 12, wherein a score is provided. The number, length, width and depth of the scores are related to the strength of the score area by arranging the scores in the score area, and the arrangement of the scores can reduce the strength of the score area; when the gas pressure acts on the protruding portion 12, the notched area is rapidly broken under the action of the pressure due to the small strength, so that the confluence cavity is communicated with the outside to decompress the battery 1.
According to some embodiments of the present utility model, as shown in fig. 3, the scores include a first score 131 and a second score 132, the first score 131 and the second score 132 being disposed to intersect. By arranging the first notch 131 and the second notch 132 in an intersecting manner, the strength of a notch area at the intersecting position of the first notch 131 and the second notch 132 is further reduced, the destruction speed of the notch area at the intersecting position of the first notch 131 and the second notch 132 is high, and the pressure release reaction speed of the battery 1 is accelerated; meanwhile, the damage of the notch area at the intersection of the first notch 131 and the second notch 132 can drive the integral damage of the notch area, so that the damage speed of the notch area is increased, and the pressure release efficiency of the battery 1 is improved.
According to some embodiments of the present utility model, as shown in fig. 3, the first scores 131 and the second scores 132 are respectively configured in a plurality and one of the first scores 131 intersects at least the plurality of the second scores 132. The first scores 131 and the second scores 132 are respectively configured to be a plurality of scores which can increase the volume of the converging cavity, thereby improving the ventilation and the pressure release efficiency of the battery 1. Meanwhile, after the intersection of the first notch 131 and the second notch 132 is damaged, a crack is formed in the notch area, the crack can be gradually expanded along the extending direction of the first notch 131 and the second notch 132, a plurality of cracks are formed in the notch area under the action of pressure by intersecting one of the first notch 131 and at least a plurality of the second notches 132, the plurality of cracks are gradually expanded along the extending direction of the first notch 131 and the second notch 132 at the same time, the overall damage speed of the crack area is accelerated, and the time from zero to the maximum of the pressure release efficiency of the battery 1 is reduced.
According to some embodiments of the present utility model, as shown in fig. 3, the extending direction of the first score 131 is orthogonal to the extending direction of the second score 132. Since the first and second scores 131 and 132 are respectively configured in plural and the extending direction of the first score 131 is orthogonal to the extending direction of the second score 132, a plurality of rectangular areas surrounded by the first score 131 and the second score 132 are formed on the score area, and the slits are expanded at the outer circumference of the rectangular areas to separate the score area forming the rectangular areas from the case 11, thereby increasing the volume of the confluence cavity, increasing the ventilation amount and thus improving the pressure release efficiency of the battery 1.
According to some embodiments of the present utility model, an end of the first score 131 is connected with an end of the second score 132. Since the first and second scores 131 and 132 are respectively constructed in a plurality, and the end of the first score 131 is connected with the end of the second score 132, at least one sealing region surrounded by the first score 131 and the second score 132 is formed on the score region, and the crack is expanded at the periphery of the sealing region to separate the score region forming the sealing region from the case 11, thereby increasing the volume of the confluence cavity, increasing the ventilation amount and thus improving the pressure release efficiency of the battery 1.
According to some embodiments of the utility model, the score is configured as a combination of one or more of a straight line, a curved line, and a broken line. Since the scores are provided on the outer surface of the case 11, the scores affect the aesthetic degree of the appearance of the battery 1, and the scores are configured as one or a combination of a straight line, a curved line and a folding line, so that the aesthetic degree and the recognition degree of the battery 1 can be improved.
According to some embodiments of the present utility model, the battery 1 further includes a battery cell, wherein the battery cell is accommodated in the accommodating cavity, and at least part of the surface of the battery cell is spaced from the first wall 111 and faces the busbar cavity. By spacing at least a portion of the surface of the cell from the first wall 111, the cavity defined between the cell and the first wall 111 provides a containment space for the gas, increasing the pressure of the gas acting on the first wall 111; meanwhile, the gas generated by the battery core flows out of the battery 1 through the converging cavity, and at least part of the surface of the battery core is opposite to the converging cavity, so that the path length of the gas flowing out is reduced, the gas flowing out speed is accelerated, and the pressure release efficiency of the battery 1 is improved.
In some embodiments, the first wall 111 is provided with a plurality of protruding portions 12, the protruding portions 12 are each formed with a converging cavity communicating with the accommodating cavity, and the outer surfaces of the protruding portions 12 are each provided with a communicating structure 13 for selectively communicating the converging cavity with the outside. When the battery 1 is out of control, a plurality of communication structures 13 are all communicated with the outside through the converging cavity under the action of gas pressure, and the pressure release efficiency of the battery 1 is improved.
In some embodiments, the battery 1 further includes a second wall, the first wall 111 and the second wall are each provided with a protruding portion 12, the protruding portions 12 are each formed with a confluence cavity communicating with the accommodating cavity, and the outer surfaces of the protruding portions 12 are each provided with a communication structure 13 for selectively communicating the confluence cavity with the outside. When the battery 1 is out of control, the communication structures 13 arranged on the first wall 111 and the second wall are used for communicating the converging cavity with the outside under the action of gas pressure, so that the pressure release efficiency of the battery 1 is improved.
The battery module according to the present utility model is briefly described below.
The battery module according to the present utility model includes the battery 1 in any one of the embodiments described above. Because the battery module according to the utility model comprises the battery 1 in any one of the embodiments, when the battery module according to the utility model is out of control, the gas in the battery 1 can be discharged in time, the gas in the battery module is increased, the pressure is increased, the explosion-proof structure of the battery module responds to pressure relief in time, and the explosion of the battery module is avoided.
The consumer according to the utility model is briefly described below.
The electric equipment comprises the battery module in any embodiment. Because the electric equipment comprises the battery module in any embodiment, when the battery module is in thermal runaway, the communication structure 13 of the battery 1 responds to pressure relief in time, delays the time of the chain reaction caused by local thermal runaway, reduces the influence degree of the thermal runaway, and provides sufficient time for users to take emergency measures.
In the description of the present utility model, it should 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", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
In the description of the utility model, a "first feature" or "second feature" may include one or more of such features.
In the description of the present utility model, "plurality" means two or more.
In the description of the utility model, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween.
In the description of the utility model, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A battery, comprising:
a housing (11), wherein a containing cavity for containing the battery cell is formed in the housing (11); wherein the method comprises the steps of
The shell (11) is provided with a first wall (111), a protruding portion (12) protruding outside is arranged on the first wall (111), a confluence cavity communicated with the accommodating cavity is formed in the protruding portion (12), and a communication structure (13) capable of selectively communicating the confluence cavity with the outside is arranged on the outer surface of the protruding portion (12).
2. The battery according to claim 1, wherein the communication structure (13) is configured as a scored area provided on an outer surface of the protruding portion (12), the scored area having a score provided therein.
3. The battery of claim 2, wherein the scoring comprises: a first notch (131) and a second notch (132), wherein the first notch (131) and the second notch (132) are arranged in an intersecting manner.
4. A battery according to claim 3, wherein the first score (131) and the second score (132) are each configured as a plurality and wherein one of the first scores (131) intersects at least a plurality of the second scores (132).
5. The battery according to claim 4, wherein the extending direction of the first score (131) is orthogonal to the extending direction of the second score (132).
6. The battery according to claim 4, wherein an end of the first score (131) is connected with an end of the second score (132).
7. The battery of any of claims 2-6, wherein the score is configured as a combination of one or more of a straight line, a curved line, and a broken line.
8. The battery of claim 7, further comprising: and the battery cell is accommodated in the accommodating cavity, and at least part of the surface of the battery cell is arranged at intervals with the first wall (111) and is opposite to the converging cavity.
9. A battery module characterized by comprising a battery (1) according to any one of claims 1-8.
10. An electrical consumer comprising the battery module of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223439177.0U CN218919203U (en) | 2022-12-21 | 2022-12-21 | Battery, battery module and electric equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223439177.0U CN218919203U (en) | 2022-12-21 | 2022-12-21 | Battery, battery module and electric equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218919203U true CN218919203U (en) | 2023-04-25 |
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ID=86043229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223439177.0U Active CN218919203U (en) | 2022-12-21 | 2022-12-21 | Battery, battery module and electric equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218919203U (en) |
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2022
- 2022-12-21 CN CN202223439177.0U patent/CN218919203U/en active Active
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