CN219017847U - Battery, battery pack and electric equipment - Google Patents

Battery, battery pack and electric equipment Download PDF

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Publication number
CN219017847U
CN219017847U CN202223336218.3U CN202223336218U CN219017847U CN 219017847 U CN219017847 U CN 219017847U CN 202223336218 U CN202223336218 U CN 202223336218U CN 219017847 U CN219017847 U CN 219017847U
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battery
equal
satisfies
housing
end cap
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Chinese (zh)
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徐卫东
刘俊军
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Xiamen Hithium Energy Storage Technology Co Ltd
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Xiamen Hithium Energy Storage Technology Co Ltd
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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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  • Gas Exhaust Devices For Batteries (AREA)

Abstract

The application discloses a battery, include: the shell is provided with a containing cavity and an opening communicated with the containing cavity; the battery cell is arranged in the accommodating cavity; the end cover assembly comprises an end cover body and an explosion-proof valve, the end cover body covers the opening, the end cover body is provided with a pressure relief hole communicated with the accommodating cavity, and the explosion-proof valve is sealed in the pressure relief hole; the cell satisfies the relationship: 1.0mm 2 /AH≤S1/C1≤2.5mm 2 AH; c1 is more than or equal to 800AH and less than or equal to 3000AH; s1 is the area of the cross section of the explosion-proof valve facing the pressure release direction; c1 is the capacity of the battery cell, so that the device reduces the material quantity of the battery,The pressure release fluxion and the structural stability of the battery can be considered while the structural complexity and the material cost of the battery are improved. The application also discloses a battery pack and electric equipment.

Description

Battery, battery pack and electric equipment
Technical Field
The application relates to the technical field of battery assembly, in particular to a battery, a battery pack and electric equipment.
Background
The battery can be internally provided with the battery core for energy storage, meanwhile, in the related technology, the capacity of the battery core is related to the sizes of various protecting structures, connecting structures and limiting structures on the corresponding end cover assemblies, the capacity of the current battery core is commonly provided with a conventional battery core of 280Ah, and the battery core with the specification needs a large number of connecting pieces for system assembly in the subsequent grouping process, so that the cost is high and the assembly is complex.
Based on the above problems, the following technical solutions are provided.
Disclosure of Invention
The embodiment of the application discloses battery, battery package and consumer can solve the problem that conventional electric core in-process needs a large amount of connecting pieces to assemble in the correlation technique, and is with high costs and assemble complicacy.
To achieve the above object, in a first aspect, the present application discloses a battery comprising: the shell is provided with a containing cavity and an opening communicated with the containing cavity; the battery cell is arranged in the accommodating cavity; the end cover assembly comprises an end cover body and an explosion-proof valve, the end cover body covers the opening, the end cover body is provided with a pressure relief hole communicated with the accommodating cavity, and the explosion-proof valve is sealed in the pressure relief hole; the cell satisfies the relationship: 1.0mm 2 /AH≤S1/C1≤2.5mm 2 AH; c1 is more than or equal to 800AH and less than or equal to 3000AH; s1 is the area of the cross section of the explosion-proof valve facing the pressure release direction; c1 is the capacity of the cell.
Optionally, the cell satisfies: h1 is more than or equal to 180mm and less than or equal to 360mm; wherein H1 is the height of the battery cell; the height direction of the battery cell faces the pressure release direction.
Optionally, the explosion protection valve satisfies: s1 is greater than or equal to 1200mm 2 。
Optionally, the housing satisfies: M2/W2 is more than or equal to 1/20 and less than or equal to 1/3; m2 is more than or equal to 50mm; w2 is more than or equal to 320mm; h2 More than or equal to 180mm; wherein M2 is the thickness of the shell; w2 is the length of the shell; h2 is the height of the housing; the thickness direction of casing towards the second direction, the direction of height of casing towards the pressure release direction, the length direction of casing towards first direction, second direction and pressure release direction two liang intersect.
Optionally, the housing satisfies: M2/W2 is more than or equal to 0.06 and less than or equal to 0.3; w2 is more than or equal to 400mm and less than or equal to 1000mm; m2 is more than or equal to 60mm and less than or equal to 120mm.
Optionally, the end cover assembly further comprises a pole, the pole is electrically connected with the electric core, the pole is arranged on the end cover body, the pole is two in total, the explosion-proof valve is arranged between the two poles, and the pole meets the following conditions: L4/W3 is more than or equal to 0.75 and less than or equal to 0.90, or W3-L4 is more than or equal to 40mm and less than or equal to 100mm; w3=w2; l4 is more than or equal to 300mm; wherein L4 is the center distance between two polar posts; w3 is the length of the end cover body; the length direction of the end cover body faces the first direction.
Optionally, the post satisfies: D4D 4 min More than or equal to 18mm; wherein D4 min Is the minimum diameter of the pole.
Optionally, the end cap assembly further comprises a press block; the two pressing blocks are arranged on the end cover body and sleeved on the pole; the briquetting satisfies: L5/W3 is more than or equal to 0.75 and less than or equal to 0.90; d5 More than or equal to 36mm; wherein L5 is the center distance between two pressing blocks; d5 is the side length or diameter of the briquette.
Optionally, the end cover assembly further includes an adaptor, the adaptor is located the end cover body, the adaptor is connected to the utmost point post to the adaptor is equipped with the pin that is used for connecting the electric core, and the pin satisfies: m7 is more than or equal to 50mm; h7 More than or equal to 80mm; under the condition that the pin is connected with the anode of the battery cell, N7 is more than or equal to 2.5mm; under the condition that the pin is connected with the negative electrode of the battery cell, N7' is more than or equal to 1.5mm; wherein M7 is the width of the pin, and the unit is mm; h7 is the length of the pin in mm; n7 and N7' are thicknesses of pins, and the unit is mm; the width direction of pin is towards the second direction, and the length direction of pin is towards the pressure release direction, and the thickness of pin is towards first direction, and first direction, second direction, pressure release direction two liang intersect.
Optionally, the end cap body satisfies: h3 is more than or equal to 2mm and less than or equal to 4mm; wherein H3 is the thickness of the end cover body; the thickness direction of the end cover body faces the pressure release direction.
Optionally, the housing satisfies: t2 is more than or equal to 0.6mm; t2 is the wall thickness of the housing.
Optionally, the housing satisfies: t21 is more than or equal to 0.6mm and less than or equal to 1mm; t22 is more than or equal to 0.6mm and less than or equal to 1.2mm; t23 is more than or equal to 1.2mm and less than or equal to 2.5mm; t22 > T21; t21 is the wall thickness of the large surface of the shell; t22 is the wall thickness of the side of the housing; t23 is the wall thickness of the bottom surface of the shell; the bottom surface of casing and electric core set gradually along the pressure release direction, and the perisporium of casing is enclosed to the big face of casing and the side of casing, and the perisporium of casing encloses to close to be connected in the bottom surface of casing in order to form and hold the chamber.
Optionally, the housing satisfies: v2 is more than or equal to 8000000mm 3 The method comprises the steps of carrying out a first treatment on the surface of the V2 is the volume of the housing.
Optionally, the end cover assembly is provided with a liquid injection hole communicated with the accommodating cavity, and the liquid injection hole and the pressure relief hole are arranged at intervals; and (5) injecting a liquid Kong Manzu: d6 More than or equal to 5mm; wherein D6 is the diameter of the liquid injection hole.
In a second aspect, the present application discloses a battery pack comprising a battery.
In a third aspect, the present application discloses a powered device comprising a battery pack.
Compared with the prior art, the beneficial effects of this application are:
this application is through carrying out optimal design to the battery, specifically sets up the battery and includes: the shell is provided with a containing cavity and an opening communicated with the containing cavity; the battery cell is arranged in the accommodating cavity; the end cover assembly comprises an end cover body and an explosion-proof valve, the end cover body covers the opening, the end cover body is provided with a pressure relief hole communicated with the accommodating cavity, and the explosion-proof valve is sealed in the pressure relief hole; the cell satisfies the relationship: 1.0mm 2 /AH≤S1/C1≤2.5mm 2 AH; c1 is more than or equal to 800AH and less than or equal to 3000AH; s1 is the area of the cross section of the explosion-proof valve facing the pressure release direction; c1 is the capacity of the cell.
In this application, through improving the capacity of electric core to C1 be greater than or equal to 800AH for the quantity of electric core reduces in the battery of same volume, and correspondingly, with the guard structure, connection structure and the limit structure of electric core adaptation the quantity of connecting pieces such as will reduce, so, the material quantity of battery, battery structure complexity and material cost all can reduce. Meanwhile, the battery cell cannot be infinitely large, so that the upper limit of the capacity of the battery cell, namely C1 is less than or equal to 3000AH, is controlled, and the operability of the device is improved.
Meanwhile, when the capacity C1 of the battery cell is improved, the pressure relief area of the explosion-proof valve is required to be matched with the capacity of the battery cell. Specifically, by controlling S1/C1 to be larger than or equal to 1.0mm 2 The pressure release area S1 of the explosion-proof valve is not too small relative to the capacity C1 of the battery cell, so that gas and liquid can be fully discharged when the battery cell expands, and the pressure release flow property is ensured; and S1/C1 is less than or equal to 2.5mm 2 AH, can ensure the pressure release area S1 of the explosion-proof valve relative to the capacity of the battery cellThe amount C1 is not too large, so that the integral strength of the end cover assembly is prevented from being influenced, and the structural stability of the battery is ensured.
To sum up, the device can give attention to pressure release fluxion and structural stability of the battery when reducing the material quantity, the battery structural complexity and the material cost of the battery.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in 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 utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is an overall structural view of a battery disclosed in the present application;
FIG. 2 is a front view of a battery disclosed herein;
FIG. 3 is an enlarged view of FIG. 2 at I of the present disclosure;
FIG. 4 is an enlarged view of FIG. 2 at II of the present disclosure;
fig. 5 is a left side view of a battery disclosed herein.
Reference numerals illustrate:
100-shell body,
200-cell,
300-end cap assembly,
310-end cover body, 320-explosion-proof valve, 330-polar column, 340-press block, 350-liquid injection hole, 360-adapter,
Z-pressure relief direction, X-first direction, Y-second direction.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "first," "second," and the like, are used primarily to distinguish between different devices, elements, or components (the particular species and configurations may be the same or different), and are not used to indicate or imply the relative importance and number of devices, elements, or components indicated. Unless otherwise indicated, the meaning of "a plurality" is two or more.
In the related art, the capacity of the battery cell is related to the sizes of various protecting structures, connecting structures and limiting structures on the corresponding end cover assembly, the capacity of the battery cell at present is commonly 280Ah of a conventional battery cell, a large number of connecting pieces are required for system assembly of the battery cell with the specification in the subsequent grouping process, the cost is high, the assembly is complex, and the technical scheme of the application is just to solve the technical problems, and the description is provided below with reference to fig. 1-5.
The present application discloses a battery that may include a housing 100, a cell 200, and an end cap assembly 300. The housing 100 is an installation foundation of the present application, and provides shielding protection for other parts, and the battery cell 200 is an energy storage core component of the battery, so as to realize electric energy transmission, specifically, the housing 100 may be provided with an accommodating cavity and an opening communicating with the accommodating cavity, and the battery cell 200 is disposed in the accommodating cavity.
End cap assembly 300 may include an end cap body 310 and an explosion-proof valve 320, end cap body 310 covering the opening to prevent outside contaminants from contaminating the interior of the cell. The end cap body 310 is provided with a pressure relief hole communicated with the accommodating cavity, and the explosion-proof valve 320 is sealed in the pressure relief hole. The pressure release hole is used for realizing the pressure release of the battery, specifically, when the battery works normally, the internal pressure of the battery is normal, the explosion-proof valve 320 also seals the pressure release hole normally, when the pressure rise is caused by the expansion in the battery, the explosion-proof valve 320 is burst by the excessive pressure, and the expanded gas and liquid can be discharged through the pressure release hole, so that the pressure release is realized, and the safety performance of the battery is ensured.
The cell 200 may satisfy the relationship: 1.0mm 2 /AH≤S1/C1≤2.5mm 2 AH; such as s1/c1=1.0mm 2 /AH、1.5mm 2 /AH、2mm 2 /AH、2.5mm 2 /AH, etc. And 800AH C1 3000AH, such as c1=800 AH, 1000AH, 1500AH, 2000AH, 2500AH, 3000AH, etc. Wherein S1 is the area of the cross section of the explosion-proof valve 320 facing the pressure release direction Z, i.e. the pressure release area of the explosion-proof valve 320; c1 is the capacity of the cell 200.
In the application, through improving the capacity of electric core 200 to C1 be greater than or equal to 800AH for the quantity of electric core 200 reduces in the battery of same volume, and correspondingly, with the guard structure, connection structure and the quantity of connecting pieces such as limit structure of electric core 200 adaptation will reduce, so, the material quantity of battery, battery structure complexity and material cost all can reduce. Meanwhile, the battery cell 200 cannot be infinitely large, so that the upper limit of the capacity of the battery cell 200, namely, C1 is less than or equal to 3000AH, is controlled to improve the operability of the device.
Meanwhile, while the capacity C1 of the battery cell 200 is increased, the pressure relief area of the explosion-proof valve 320 needs to be ensured to be adapted to the capacity of the battery cell 200. Specifically, by controlling S1/C1 to be larger than or equal to 1.0mm 2 The pressure release area S1 of the explosion-proof valve 320 is not too small relative to the capacity C1 of the battery cell 200, so that gas and liquid can be fully discharged when the battery cell 200 expands, and the pressure release fluxion is ensured; and S1/C1 is less than or equal to 2.5mm 2 The pressure release area S1 of the explosion-proof valve 320 is not too large relative to the capacity C1 of the battery cell 200, so as to avoid affecting the overall strength of the end cap assembly 300 and ensure the structural stability of the battery.
To sum up, the device can give attention to pressure release fluxion and structural stability of the battery when reducing the material quantity, the battery structural complexity and the material cost of the battery.
Alternatively, the cell 200 may satisfy: h1 is more than or equal to 180mm and less than or equal to 360mm; such as h1=180 mm, 240mm, 300mm, 360mm, etc. Wherein H1 is the height of the cell 200; the height direction of the cell 200 is toward the pressure release direction Z. Thus, the specification of the battery cell 200 is more adapted to the square battery, and the installation requirement of the square battery is met.
Alternatively, the explosion proof valve 320 may satisfy: s1 is greater than or equal to 1200mm 2 For example s1=1200 mm 2 、1500mm 2 、1800mm 2 And so on, so that the explosion-proof valve 320 can provide a sufficient pressure relief area S1 to ensure smooth discharge of the expanded gas and liquid when the battery cell 200 is expanded.
Alternatively, the housing 100 may satisfy: M2/W2 is more than or equal to 1/20 and less than or equal to 1/3; such as m2/w2=1/20, 1/10,1/5,1/3, etc. M2 is more than or equal to 50mm; w2 is more than or equal to 320mm; h2 And more than or equal to 180mm. Wherein M2 is the thickness of the housing 100; w2 is the length of the housing 100; h2 is the height of the housing 100; the thickness direction of the casing 100 faces the second direction Y, the height direction of the casing 100 faces the pressure relief direction Z, the length direction of the casing 100 faces the first direction X, and the first direction X, the second direction Y and the pressure relief direction Z intersect each other.
Thus, by controlling the length W2, the height H2 and the thickness M2 of the casing 100, the shape and the specification of the casing 100 are further controlled, so that corresponding constraints are formed on the number, the specification and the like of the battery cells 200 installed in the casing 100, and further, the total capacity (namely, the sum of the capacities C1 of the battery cells 200) and the energy density of the battery cells 200 are controlled, the capacity requirement of the battery is met, and meanwhile, the capacity limit of the battery is prevented from being excessively exceeded, so that the battery is enabled to be compatible with safety and conductivity stability.
Alternatively, the housing 100 may satisfy: M2/W2 is more than or equal to 0.06 and less than or equal to 0.3; such as m2/w2= 0.06,0.1,0.2,0.3, etc. W2 is more than or equal to 400mm and less than or equal to 1000mm; such as w2=400 mm,600mm,800mm,1000mm, etc. 60 mm.ltoreq.M2.ltoreq.120 mm, such as M2=60 mm,80mm,100mm,120mm, etc. The shape and specification of the housing 100 can be further controlled, so that the total capacity and energy density of the battery cell 200 are better constrained, and the safety and the conductivity stability of the battery are further considered.
Optionally, the end cap assembly 300 may further include a post 330, wherein the post 330 is electrically connected to the cell 200, thereby forming a conductive loop for conducting electrical energy from the battery. The pole columns 330 are arranged on the end cover body 310, the number of the pole columns 330 is two, and the explosion-proof valve 320 is arranged between the two pole columns 330.
The post 330 may satisfy: 0.75.ltoreq.L4/W3.ltoreq.0.90, such as L4/W3= 0.75,0.8,0.9, etc. Or W3-L4 is more than or equal to 40mm and less than or equal to 100mm; such as w3—l4=40 mm,60mm,80mm,100mm, etc. W3=w2; l4 is more than or equal to 300mm. Wherein L4 is the center-to-center distance between the two posts 330; w3 is the length of end cap body 310; the length direction of the end cap body 310 is oriented in the first direction X.
In the setting of the polar columns 330, the center distance L4 between two polar columns 330 needs to be enough in width, so that on one hand, the stability of a conductive loop formed between the polar columns 330 and an external electrical connection device can be ensured, and on the other hand, processing and installation spaces can be reserved for the explosion-proof valve 320, the liquid injection hole and the like on the end cover body 310, so that the molding yield is improved. Meanwhile, the center distance L4 between the two pole posts 330 cannot be too large, so that the situation that the edge of the end cover body 310 is too close to the edge of the end cover body 310 is avoided, the strength of the edge of the end cover body 310 is affected, and other parts are occupied, such as the arrangement of the positions of the adapter 360, the pins 361 and the like.
Therefore, the relative position relationship between the center distance L4 of the pole 330 and the length W3 of the end cover body 310 is controlled according to the above-mentioned ratio of 0.75-L4/W3-0.90 or the ratio of 40 mm-W3-L4-100 mm, so that the installation of the pole 330 can ensure enough strength of the end cover body 310 while avoiding the installation interference to other parts, and further ensure the stability and non-deformation of the end cover assembly 300.
Setting the length w3 of the end cap body 310=the length W2 of the housing 100 can enable the end cap assembly 300 to effectively cover the housing 100 and avoid waste of redundant materials.
Alternatively, the post 330 may satisfy: D4D 4 min More than or equal to 18mm; wherein D4 min Is the minimum diameter of the post 330. This ensures the overcurrent area of the post 330 and thus the conductivity of the battery.
Optionally, end cap assembly 300 may also include a press 340; the number of the pressing blocks 340 is two, and the pressing blocks 340 are arranged on the end cover body 310 and sleeved on the pole 330; press 340 may satisfy: L5/W3 is more than or equal to 0.75 and less than or equal to 0.90; such as l5/w3= 0.75,0.8,0.9, etc. D5 More than or equal to 36mm; wherein L5 is the center-to-center distance between two press blocks 340; d5 is the side length or diameter of the press 340.
In this way, by controlling the relative positional relationship between the center distance L5 of the pressing block 340 and the length W3 of the end cover body 310, the design of the pressing block 340 not only can strengthen the end cover assembly 300 to ensure the structural stability of the end cover assembly 300, but also can be adapted to the center distance L4 of the pole 330 in size, so as to fully protect the pole 330.
And through the control to the length or diameter D5 of briquetting 340 for briquetting 340 has sufficient welding area with the busbar that external module is connected, can satisfy the overcurrent requirement of battery, thereby guarantees the electric conductivity ability.
Optionally, the end cap assembly 300 may further include an adaptor 360, where the adaptor 360 is disposed on the end cap body 310, the adaptor 360 is connected to the pole 330, and the adaptor 360 is provided with a pin 361 for connecting the battery cell 200, and the pin 361 may satisfy: m7 is more than or equal to 50mm; h7 And more than or equal to 80mm.
Generally speaking, the two poles 330 are respectively a positive pole and a negative pole of the battery, and the battery cell 200 also has a corresponding positive pole and a corresponding negative pole, and the adaptor 360 is correspondingly provided with two poles, one of which is respectively connected to the positive pole of the battery cell 200 and the positive pole of the battery cell 200, and the other of which is respectively connected to the negative pole of the battery cell 200.
Wherein, the material of the adaptor 360 for connecting the positive electrode of the battery cell 200 is aluminum, and the material of the adaptor 360 for connecting the negative electrode of the battery cell 200 is copper, and considering that the overcurrent capability of copper and aluminum are different, the pin 361 can also satisfy:
under the condition that the pin 361 is connected with the anode of the battery cell 200, N7 is more than or equal to 2.5mm; in the case where pin 361 is connected to the negative electrode of cell 200, N7'. Gtoreq.1.5 mm.
Wherein M7 is the width of pin 361; h7 is the length of pin 361; n7 and N7' are the thicknesses of pins 361; the width direction of the pin 361 faces the second direction Y, the length direction of the pin 361 faces the pressure release direction Z, the thickness of the pin 361 faces the first direction X, and the first direction X, the second direction Y, and the pressure release direction Z intersect each other in pairs, for example, are perpendicular to each other.
By the arrangement, the overcurrent capacity of the pin 361 can be fully ensured, and the adaptor 360 can play a good conductive role between the positive pole and the positive pole of the battery cell 200 and between the negative pole and the negative pole of the battery cell 200.
Alternatively, end cap body 310 may satisfy: h3 is more than or equal to 2mm and less than or equal to 4mm; such as h3=2mm, 3mm,4mm, etc. Wherein H3 is the thickness of end cap body 310; the thickness direction of the end cap body 310 faces the pressure release direction Z.
Too thin a thickness of the end cap body 310 is not advantageous for ensuring structural stability of the end cap assembly 300, and too thick a thickness may result in material waste, so that the end cap body 310 is controlled according to the above-mentioned dimensions, so that both strength performance and material cost saving are achieved.
Alternatively, the housing 100 may satisfy: t2 is more than or equal to 0.6mm; t2 is the wall thickness of the housing 100. In this way, the housing 100 has sufficient strength to effectively prevent the deformation due to collision.
Alternatively, the housing 100 may satisfy:
t21 is more than or equal to 0.6mm and less than or equal to 1mm; such as t21=0.5 mm,0.8mm,1mm, etc.
T22 is more than or equal to 0.6mm and less than or equal to 1.2mm; such as t22=0.6 mm,0.8mm,1mm,1.2mm, etc.
T23 is more than or equal to 1.2mm and less than or equal to 2.5mm; such as t23=1.2 mm,1.5mm,1.8mm,2.5mm, etc.
T22＞T21。
T21 is the wall thickness of the large face of the housing 100; t22 is the wall thickness of the side of the housing 100; t23 is the wall thickness of the bottom surface of the housing 100. The bottom surface of the casing 100 and the battery cell 200 are sequentially arranged along the pressure release direction Z, the large surface of the casing 100 and the side surface of the casing 100 enclose the peripheral wall of the casing 100, and the peripheral wall of the casing 100 encloses and is connected to the bottom surface of the casing 100 to form an accommodating cavity. This can further improve the structural strength of the housing 100 and prevent the deformation due to collision.
Alternatively, the housing 100 may satisfy: v2 is more than or equal to 8000000mm 3 The method comprises the steps of carrying out a first treatment on the surface of the V2 is the volume of the housing 100. In this way, a sufficient number of cells 200 can be accommodated in the housing 100, thereby providing the battery with a sufficient capacity.
Alternatively, the end cap assembly 300 may be provided with a liquid injection hole 350 communicating with the accommodating cavity, and the liquid injection hole 350 is spaced from the pressure release hole; the liquid injection hole 350 may satisfy: d6 More than or equal to 5mm; where D6 is the diameter of the fill port 350. The electrolyte injection hole 350 is used for injecting electrolyte into the battery, and through the above size control, the electrolyte injection hole 350 has a sufficient flow area, thereby meeting the electrolyte injection capability and improving the electrolyte injection efficiency.
The application also discloses a battery pack, which can be the battery.
The application also discloses electric equipment, which can comprise the battery pack. For example, the electric equipment is an electric automobile, a ship, a spacecraft, a computer and the like.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (16)

1. A battery, comprising:
a housing (100) provided with a housing chamber and an opening communicating with the housing chamber;
the battery cell (200) is arranged in the accommodating cavity;
the end cover assembly (300) comprises an end cover body (310) and an explosion-proof valve (320), wherein the end cover body (310) covers the opening, the end cover body (310) is provided with a pressure relief hole communicated with the accommodating cavity, and the explosion-proof valve (320) is sealed in the pressure relief hole;
the battery cell (200) satisfies the relation: 1.0mm 2 /AH≤S1/C1≤2.5mm 2 /AH；800AH≤C1≤3000AH；
Wherein S1 is the area of the cross section of the explosion-proof valve (320) facing the pressure relief direction (Z);
c1 is the capacity of the cell (200).
2. The battery according to claim 1, wherein the cell (200) satisfies: h1 is more than or equal to 180mm and less than or equal to 360mm;
wherein H1 is the height of the battery cell (200);
the height direction of the battery cell (200) faces the pressure release direction (Z).
3. The battery according to claim 1, wherein the explosion-proof valve (320) satisfies:
S1≥1200mm 2 。
4. the battery according to claim 1, wherein the housing (100) satisfies:
1/20≤M2/W2≤1/3；
M2≥50mm；W2≥320mm；H2≥180mm；
wherein M2 is the thickness of the housing (100); w2 is the length of the housing (100); h2 is the height of the housing (100);
the thickness direction of casing (100) is towards second direction (Y), the direction of height of casing (100) is towards pressure release direction (Z), the length direction of casing (100) is towards first direction (X), second direction (Y) with pressure release direction (Z) two liang intersects.
5. The battery according to claim 4, wherein the case (100) satisfies:
0.06≤M2/W2≤0.3；400mm≤W2≤1000mm；60mm≤M2≤120mm。
6. the battery of claim 4, wherein the end cap assembly (300) further comprises a post (330), the post (330) is electrically connected to the electrical core (200), the post (330) is disposed on the end cap body (310), the two posts (330) are total, the explosion-proof valve (320) is disposed between the two posts (330), and the post (330) satisfies:
L4/W3 is more than or equal to 0.75 and less than or equal to 0.90, or W3-L4 is more than or equal to 40mm and less than or equal to 100mm;
W3＝W2；L4≥300mm；
wherein L4 is the center distance between the two polar posts (330); w3 is the length of the end cap body (310);
the length direction of the end cap body (310) is oriented in the first direction (X).
7. The battery according to claim 6, wherein the post (330) satisfies:
D4 min ≥18mm；
wherein D4 min Is the minimum diameter of the pole (330).
8. The battery of claim 6, wherein the end cap assembly (300) further comprises a press block (340); the number of the pressing blocks (340) is two, and the pressing blocks (340) are arranged on the end cover body (310) and sleeved on the pole (330); the press block (340) satisfies:
0.75≤L5/W3≤0.90；
D5≥36mm；
wherein L5 is the center distance between two pressing blocks (340); d5 is the side length or diameter of the compact (340).
9. The battery of claim 6, wherein the end cap assembly (300) further comprises an adapter (360), the adapter (360) is provided on the end cap body (310), the adapter (360) is connected to the post (330), and the adapter (360) is provided with a pin (361) for connecting the cell (200), the pin (361) satisfying:
M7≥50mm；H7≥80mm；
under the condition that the pin (361) is connected with the positive electrode of the battery cell (200), N7 is more than or equal to 2.5mm;
under the condition that the pin (361) is connected with the negative electrode of the battery cell (200), N7' is more than or equal to 1.5mm;
wherein M7 is the width of the pin (361); h7 is the length of the pin (361); n7 and N7' are thicknesses of the pins (361);
the width direction of pin (361) is towards second direction (Y), the length direction of pin (361) is towards pressure release direction (Z), the thickness of pin (361) is towards first direction (X), second direction (Y) pressure release direction (Z) two liang crossing.
10. The battery according to any one of claims 1-9, wherein the end cap body (310) satisfies:
2mm≤H3≤4mm；
wherein H3 is the thickness of the end cap body (310);
the thickness direction of the end cap body (310) is toward the pressure relief direction (Z).
11. The battery according to any one of claims 1 to 9, wherein the case (100) satisfies:
t2 is more than or equal to 0.6mm; t2 is the wall thickness of the housing (100).
12. The battery according to claim 11, wherein the housing (100) satisfies:
0.6mm≤T21≤1mm；0.6mm≤T22≤1.2mm；1.2mm≤T23≤2.5mm；T22＞T21；
t21 is the wall thickness of the large face of the housing (100); t22 is the wall thickness of the side face of the housing (100); t23 is the wall thickness of the bottom surface of the shell (100);
the bottom surface of casing (100) with electric core (200) are followed pressure release direction (Z) sets gradually, the big face of casing (100) with the side of casing (100) enclose into the perisporium of casing (100), the perisporium of casing (100) enclose connect in the bottom surface of casing (100) is in order to form hold the chamber.
13. The battery according to any one of claims 1 to 9, wherein the case (100) satisfies:
V2≥8000000mm 3 ；
v2 is the volume of the housing (100).
14. The battery according to any one of claims 1 to 9, wherein the end cap assembly (300) is provided with a liquid injection hole (350) communicating with the accommodating cavity, the liquid injection hole (350) being spaced apart from the pressure release hole; the liquid injection hole (350) satisfies the following conditions:
D6≥5mm；
wherein D6 is the diameter of the liquid injection hole (350).
15. A battery pack comprising the battery according to any one of claims 1 to 14.
16. A powered device comprising the battery pack of claim 15.
CN202223336218.3U 2022-12-12 2022-12-12 Battery, battery pack and electric equipment Active CN219017847U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117096511A (en) * 2023-10-18 2023-11-21 蜂巢能源科技股份有限公司 Battery cell, battery module and battery pack
CN117096543A (en) * 2023-10-18 2023-11-21 蜂巢能源科技股份有限公司 Battery, battery module and battery pack
CN117438655A (en) * 2023-12-20 2024-01-23 宁德时代新能源科技股份有限公司 Battery cell, battery and electricity utilization device
WO2024125285A1 (en) * 2022-12-12 2024-06-20 厦门海辰储能科技股份有限公司 Battery, battery pack and electric device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024125285A1 (en) * 2022-12-12 2024-06-20 厦门海辰储能科技股份有限公司 Battery, battery pack and electric device
CN117096511A (en) * 2023-10-18 2023-11-21 蜂巢能源科技股份有限公司 Battery cell, battery module and battery pack
CN117096543A (en) * 2023-10-18 2023-11-21 蜂巢能源科技股份有限公司 Battery, battery module and battery pack
CN117096511B (en) * 2023-10-18 2024-01-12 蜂巢能源科技股份有限公司 Battery cell, battery module and battery pack
CN117096543B (en) * 2023-10-18 2024-02-20 蜂巢能源科技股份有限公司 Battery, battery module and battery pack
CN117438655A (en) * 2023-12-20 2024-01-23 宁德时代新能源科技股份有限公司 Battery cell, battery and electricity utilization device

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