CN217009487U - Battery module and battery monomer - Google Patents
Battery module and battery monomer Download PDFInfo
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- CN217009487U CN217009487U CN202220765370.4U CN202220765370U CN217009487U CN 217009487 U CN217009487 U CN 217009487U CN 202220765370 U CN202220765370 U CN 202220765370U CN 217009487 U CN217009487 U CN 217009487U
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Abstract
The utility model provides a battery module and a battery monomer, wherein the battery module comprises: a plurality of battery cells, the battery cells comprising: the device comprises a shell, a first electrode, a second electrode and a control circuit, wherein the shell is provided with a first surface and a second surface, and a first output electrode and a second output electrode are arranged on the shell; the first conducting strip is connected with the first output electrode, the second conducting strip is connected with the second output electrode, and the first conducting strip of one battery monomer is abutted against the second conducting strip of the other battery monomer in two adjacent battery monomers. According to the battery module, the first conducting strips of the battery monomers are pressed and abutted with the second conducting strips of the adjacent battery monomers, so that the condition that the whole battery module is scrapped due to welding single-point welding errors of the battery module is avoided, the detachability of the battery module is improved, the output electrode is prevented from being pulled by the circular expansion of the battery core, the fatigue fracture of the output electrode is avoided, and the safety performance of the battery module is improved.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a battery module and a battery monomer.
Background
In modern society, driving power sources for more and more electric tools and new energy vehicles are developed in a direction of high capacity and high safety, and batteries are widely used in electric tools and new energy vehicles due to their excellent characteristics such as high capacity. The square aluminum-shell batteries are generally electrically connected by output electrode bus bar welding, and a single welding point fails after grouping, so that the whole module is scrapped; the detachability is poor after the welding is finished; the battery core circulation expansion pulls the output pole, so that fatigue fracture is easily generated or the sealing of the position of the battery core pole is influenced.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention is directed to a battery module, which has high detachability and good safety.
The utility model also provides a battery monomer.
In order to achieve the purpose, the technical scheme of the utility model is realized as follows:
a battery module according to a first aspect of the utility model includes: a plurality of battery cells arranged in a stack in a first direction, the battery cells comprising: the device comprises a shell, a first electrode, a second electrode and a control circuit, wherein the shell is provided with a first surface and a second surface which are oppositely arranged in a first direction of the shell; the first conducting strip extends along a second direction perpendicular to the first direction and is connected with the first output electrode, the second conducting strip is connected with the second output electrode along the second direction, and in two adjacent single batteries, one of the single batteries is abutted to the other single battery in the second conducting strip.
According to the battery module, the first conducting strips of the battery monomers are tightly pressed and abutted with the second conducting strips of the adjacent battery monomers, and the plurality of battery monomers are electrically connected, so that the condition that the whole battery module is scrapped due to welding single-point welding errors of the battery module is avoided, the detachability of the battery module is improved, the output electrode is prevented from being pulled by the circular expansion of the battery core, the fatigue fracture of the output electrode is avoided, and the safety performance of the battery module is improved.
In some embodiments, the battery cell further comprises: and the elastic piece is abutted between the first conductive sheet and the first surface, or the elastic piece is abutted between the second conductive sheet and the second surface.
In some embodiments, the resilient member is an insulator, and/or the resilient member is a thermal insulator or a thermal conductor.
In some embodiments, the battery module further includes: a functional diaphragm disposed between the first and second adjacent conductive sheets, the functional diaphragm configured to heat the first and second adjacent conductive sheets when a temperature is below a preset temperature value.
In some embodiments, the resistance value of the functional diaphragm is variable, and the resistance value of the functional diaphragm is inversely related to temperature.
In some embodiments, a conductive paste layer is disposed between adjacent first and second conductive sheets.
In some embodiments, the housing has a third surface and a fourth surface arranged oppositely in a length direction, the first output pole and the second output pole are respectively provided on the third surface and the fourth surface, or the first output pole and the second output pole are provided on one of the third surface and the fourth surface; or the housing has a fifth surface and a sixth surface arranged oppositely in the width direction, and the first output pole and the second output pole are respectively provided on the fifth surface and the sixth surface, or the first output pole and the second output pole are provided on one of the fifth surface and the sixth surface.
In some embodiments, a projected area of the first conductive sheet on the first surface is not less than two-thirds of a total area of the first surface, and a projected area of the second conductive sheet on the second surface is less than two-thirds of the total area of the second surface.
In some embodiments, the battery module further includes: the first end plate and the second end plate are respectively arranged at two ends of the plurality of battery cells in the stacking direction, and preset pressing force is arranged between the first end plate and the second end plate and is larger than 6 kPa.
A battery cell according to a second aspect of the utility model includes: the device comprises a shell, a first electrode, a second electrode and a control circuit, wherein the shell is provided with a first surface and a second surface which are oppositely arranged in a first direction of the shell; the first conducting strip extends along a second direction perpendicular to the first direction and is connected with the first output electrode, the second conducting strip extends along the second direction and is connected with the second output electrode, the first conducting strip is used for being abutted with the second conducting strip of an adjacent battery monomer, and the second conducting strip is used for being abutted with the first conducting strip of the adjacent battery monomer.
According to the battery module, the condition that the whole battery module is scrapped due to welding error of a single welding point of the battery module is avoided, the detachability of the battery module is improved, and the safety performance of a single battery is improved.
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 accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:
fig. 1 is a schematic view of a battery module according to a second aspect of the present invention;
fig. 2 is a schematic view of a front view of the battery module shown in fig. 1;
fig. 3 is a schematic view of a side view of the battery module shown in fig. 1;
fig. 4 is a schematic view of the battery cell shown in fig. 1;
fig. 5 is a schematic diagram of a front view of the battery cell shown in fig. 4;
fig. 6 is a schematic diagram of a side view of the battery cell shown in fig. 4;
fig. 7 is a schematic view of an exploded view of the battery cell shown in fig. 4;
fig. 8 is a schematic view of an exploded view of the battery cell shown in fig. 7;
fig. 9 is a schematic diagram of a side view of the battery cell shown in fig. 8;
fig. 10 is a schematic view of a front view of the battery cell shown in fig. 8;
fig. 11 is a schematic view of the battery module shown in fig. 1, in which the battery module is provided with sampling lines;
fig. 12 is a schematic view of a rear view of the battery module shown in fig. 11.
Description of reference numerals:
100. a battery module;
1. a battery cell;
11. a housing; 111. a first surface; 112. a third surface; 113. a fifth surface;
114. a first output electrode; 115. a second output electrode;
12. a first conductive sheet; 121. a first conductive segment; 122. a second conductive segment;
13. a second conductive sheet; 14. an elastic member; 15. collecting the lead-out sheet;
2. and (6) sampling.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "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 are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.
First, a battery cell 1 according to an embodiment of a second aspect of the present invention will be briefly described with reference to fig. 4 to 10, the battery cell 1 including: the casing 11, the first conducting strip 12 and the second conducting strip 13.
Specifically, the housing 11 has a first surface 111 and a second surface arranged opposite to each other in a first direction of the housing 11, the housing 11 is provided with a first output electrode 114 and a second output electrode 115, the first conductive sheet 12 extends along a second direction perpendicular to the first direction and is connected to the first output electrode 114, the second conductive sheet 13 extends along the second direction and is connected to the second output electrode 115, the first conductive sheet 12 is configured to abut against the second conductive sheet 13 of the adjacent battery cell 1, and the second conductive sheet 13 is configured to abut against the first conductive sheet 12 of the adjacent battery cell 1. From this, battery monomer 1's simple structure adopts first conducting strip 12 and second conducting strip 13 butt to connect between the battery monomer 1, does not adopt welded connection between the battery monomer 1, has reduced battery module 100's disability rate.
A battery module 100 according to an embodiment of the first aspect of the utility model is described below with reference to fig. 1 to 12.
As shown in fig. 1 to 7, the battery module 100 according to the embodiment of the first aspect of the present invention includes a plurality of battery cells 1, the plurality of battery cells 1 are stacked in a first direction, and the battery cells 1 are the battery cells 1 according to the embodiment of the second aspect of the present invention.
Specifically, the battery cell 1 includes: the battery comprises a shell 11, a first conducting strip 12 and a second conducting strip 13, wherein the shell 11 is provided with a first surface 111 and a second surface which are oppositely arranged in a first direction of the shell 11, the shell 11 is provided with a first output electrode 114 and a second output electrode 115, the first conducting strip 12 extends along the second direction and is connected with the first output electrode 114, the second conducting strip 13 extends along the second direction and is connected with the second output electrode 115, the first conducting strip 12 is used for being abutted against the second conducting strip 13 of an adjacent battery unit 1, and the second conducting strip 13 is used for being abutted against the first conducting strip 12 of the adjacent battery unit 1. From this, battery monomer 1's simple structure adopts first conducting strip 12 and second conducting strip 13 butt to connect between the battery monomer 1, does not adopt welded connection between the battery monomer 1, has reduced battery module 100's disability rate.
Referring to fig. 1, the housing 11 has a first surface 111 and a second surface, the first surface 111 and the second surface are oppositely arranged in a first direction of the housing 11, the first conductive plate 12 extends along a front side surface of the battery cell 1, the first conductive plate 12 is connected to the first output electrode 114, the second conductive plate 13 extends along a rear side surface of the battery cell 1, the second conductive plate 13 is connected to the second output electrode 115, the first conductive plate 12 abuts against the second conductive plate 13 of the battery cell 1 adjacent to the front side, and the second conductive plate 13 abuts against the first conductive plate 12 of the battery cell 1 adjacent to the rear side.
According to the battery module 100 provided by the embodiment of the utility model, the first conducting strip 12 of the battery monomer 1 is tightly pressed and abutted with the second conducting strip 13 of the adjacent battery monomer 1, and the plurality of battery monomers 1 are electrically connected, so that the condition that the whole battery module 100 is scrapped due to the error welding of a single spot of the battery module 100 is avoided, the detachability of the battery module 100 is improved, the output electrode is prevented from being pulled by the circular expansion of the battery core, the fatigue fracture of the output electrode is avoided, and the safety performance of the battery module 100 is improved.
Here, the first direction in the embodiment of the present invention is the front-back direction shown in the drawing, and the second direction is the up-down direction shown in the drawing.
In some embodiments of the present invention, as shown in fig. 7, the battery cell 1 further includes: and the elastic piece 14, the elastic piece 14 is abutted between the first conductive sheet 12 and the first surface 111, or the elastic piece 14 is abutted between the second conductive sheet 13 and the second surface. Preferably, the elastic members 14 are respectively arranged between the first conductive plate 12 and the first surface 111 and between the second conductive plate 13 and the second surface, so that the first conductive plate 12 is tightly connected with the second conductive plate 13 of the adjacent single battery 1, the unstable connection of the battery module 100 is reduced, and the safety performance of the battery module 100 is improved.
In some embodiments of the present invention, the resilient member 14 is an insulator, and/or the resilient member 14 is a thermal insulator or a thermal conductor. That is to say, elastic component 14 can be the insulating part, elastic component 14 also can be the heat insulating part, elastic component 14 still can be the heat-conducting part, elastic component 14 can also have insulating function and thermal-insulated function simultaneously, or elastic component 14 can also have insulating function and heat-conducting function simultaneously, adopt the heat insulating part can prevent the leading-in self of heat that adjacent electric core out of control produced, adopt the insulating part can avoid battery monomer 1 to take place the short circuit, the volume of battery module 100 has been reduced, the space of battery monomer 1 has been reduced, the material cost of battery module 100 has been reduced.
In still other embodiments, the heat insulator may employ a heat insulator having a single-side heat conduction function, the elastic member 14 having a heat insulation function may be employed on the opposite side, and may be the elastic member 14 or the heat insulator having a heat insulation function.
In some embodiments of the present invention, the battery module 100 further includes: a functional film disposed between the adjacent first and second conductive sheets 12 and 13, the functional film being configured to heat the adjacent first and second conductive sheets 12 and 13 when the temperature is below a preset temperature value. From this, the heat production of function diaphragm can heat up electric core to the thermal conductivity of function diaphragm makes battery monomer 1's temperature more balanced, and when battery monomer 1 took place the thermal runaway, the function diaphragm played the effect of deriving the heat, has improved the working property and the security performance of battery membrane group.
In some embodiments of the present invention, the resistance value of the functional membrane is variable, and the resistance value of the functional membrane is inversely related to temperature. That is to say, when the temperature of the functional film is low, the resistance of the functional film is large, and is 0.x Ω -level resistance, and when a current passes through the functional film, heat is generated to heat the battery module 100; when the temperature of the functional diaphragm is at normal temperature, the resistance of the functional diaphragm is small, namely 0.x milliohm resistance, the resistance is small, and the heat generated when the current passes through the functional diaphragm is small.
In other embodiments of the present invention, in order to improve the conductive capability between the first conductive sheet 12 and the second conductive sheet 13, a conductive paste layer is provided between the adjacent first conductive sheet 12 and the second conductive sheet 13. The conductive paste is also called electric power compound grease, is a novel electrical material, is a soft paste prepared by taking mineral oil, synthetic grease oil and silicon oil as base oil, adding special additives such as electric conduction, oxidation resistance, corrosion resistance and arc suppression, grinding, dispersing and modifying, and can be used for the contact surface of an electric power joint, and has obvious effects of resistance reduction, corrosion resistance and electricity saving.
In still other embodiments, a conductive composite material with temperature sensitivity, which has a higher resistance at a low temperature and a low resistance at a normal temperature, may be used between the first conductive sheet 12 and the second conductive sheet 13; the battery can be heated by a large amount of heat generated by high resistance under the condition of low-temperature electrification, and the resistance is reduced when the room temperature and the working temperature range of the battery core are reached, so that the electric energy consumption and the heat generation are reduced.
In some embodiments, the housing 11 has a third surface 112 and a fourth surface arranged opposite to each other in the length direction, and the first output pole 114 and the second output pole 115 are respectively provided on the third surface 112 and the fourth surface, or the first output pole 114 and the second output pole 115 are provided on one of the third surface 112 and the fourth surface. That is, the housing 11 has a third surface 112 and a fourth surface, the third surface 112 and the fourth surface are oppositely arranged in the length direction, the first output electrode 114 and the second output electrode 115 may be respectively disposed on the third surface 112 and the fourth surface, the first output electrode 114 and the second output electrode 115 may be both disposed on the third surface 112, and the first output electrode 114 and the second output electrode 115 may be both disposed on the fourth surface. Thus, the mounting positions of the first output electrode 114 and the second output electrode 115 can be changed according to the actual use requirement of the battery module 100, and the application range of the battery module 100 can be widened.
In other embodiments, the housing 11 has a fifth surface 113 and a sixth surface arranged opposite to each other in the width direction, the first output pole 114 and the second output pole 115 are provided on the fifth surface 113 and the sixth surface, respectively, or the first output pole 114 and the second output pole 115 are provided on one of the fifth surface 113 and the sixth surface. That is, the housing 11 has a fifth surface 113 and a sixth surface, the fifth surface 113 and the sixth surface are oppositely arranged in the length direction, the first output pole 114 and the second output pole 115 may be respectively provided on the fifth surface 113 and the sixth surface, the first output pole 114 and the second output pole 115 may be both provided on the fifth surface 113, and the first output pole 114 and the second output pole 115 may be both provided on the sixth surface. Thus, the mounting positions of the first output electrode 114 and the second output electrode 115 can be changed according to the actual use requirement of the battery module 100, and the application range of the battery module 100 can be widened.
In some embodiments of the present invention, the projected area of the first conductive sheet 12 on the first surface 111 is not less than two-thirds of the total area of the first surface 111, and the projected area of the second conductive sheet 13 on the second surface is less than two-thirds of the total area of the second surface. Thus, the larger the first conductive sheet 12 is, the larger the area of the second conductive sheet 13 is, the larger the area of the first surface 111 is, the more the stability of the connection between the battery cells 1 and the overcurrent capacity can be improved.
Alternatively, the projected area of the first conductive sheet 12 on the first surface 111 may be two-thirds, three-fourths, four-fifths, five-sixths, six-seventeens, seven-eighths, eight-nineths, nine-tenths, and so on; the projected area of the second conductive sheet 13 on the second surface may be two-thirds, three-fourths, four-fifths, five-sixths, six-seventeens, seven-eighths, eight-nines, nine-tenths, and so on.
In some embodiments of the present invention, the battery module 100 further includes: the first end plate and the second end plate are respectively arranged at two ends of the plurality of battery monomers 1 in the stacking direction, and preset pressing force is arranged between the first end plate and the second end plate and is larger than 6 kPa. Therefore, the pressing force of the battery module 100 is not reduced, the connection stability of the battery module 100 is ensured, and the safety performance of the battery module 100 is improved.
Further, the expansion pressing force generated during the use of the battery module 100 is gradually increased, and the elastic member 14 can ensure that the pressing force is less than a certain value at the end of the service life, generally less than 6 MPa.
In some embodiments of the present invention, the sampling form of the battery module 100 may adopt a relatively mature sampling form of welding with the output electrode directly, specifically, the sampling form is embedded into the stacking opposite surface of the battery cell 1 by leading out a branch of the sampling line or the flexible circuit board, or the hard circuit board or the electronic component, and the external branch of the electrical signal processing unit is pressed by stacking and bending, and the signal is collected by contacting with the conducting strip led out from the electrode of the battery cell 1.
In some embodiments, the acquisition tab 15 may be partially recessed on a single side, and the acquisition tab 15 may have a thickness similar to the thickness of the conductive sheet, between 0.1mm and 2 mm. Therefore, the phenomenon that the local part is too thick to generate indentation can be avoided.
Alternatively, the thickness of the acquisition and extraction sheet 15 may be: 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2.0mm, and the like.
In some embodiments, the first conductive sheet 12 is integrally formed, and the second conductive sheet 13 is integrally formed.
In other embodiments, each of the first conductive sheet 12 and the second conductive sheet 13 includes a first conductive segment 121 and a second conductive segment 122, the first conductive segment 121 of the first conductive sheet 12 and the first conductive segment 121 of the second conductive sheet 13 are connected to the first output electrode 114 and the second output electrode 115, respectively, and the second conductive segment 122 of the first conductive sheet 12 and the second conductive segment 122 of the second conductive sheet 13 are connected to the first surface 111 and the second surface, respectively.
Hereinafter, a battery module 100 according to two embodiments of the present invention will be described with reference to fig. 1 to 12.
In a first embodiment, referring to fig. 1 to 12, a battery module 100 includes a first end plate, a second end plate and a plurality of battery cells 1, wherein the plurality of battery cells 1 are stacked in a first direction, the first end plate and the second end plate are respectively disposed at two ends of the plurality of battery cells 1 in the stacking direction, and a preset pressing force is provided between the first end plate and the second end plate.
The battery cell 1 includes: the device comprises a shell 11, a first conductive sheet 12, a second conductive sheet 13, an elastic piece 14 and a functional membrane. Specifically, the housing 11 has a first surface 111 and a second surface, the first surface 111 and the second surface are oppositely arranged in a first direction of the housing 11, the first conductive sheet 12 extends along a front side surface of the single battery 1, the first conductive sheet 12 is connected to the first output electrode 114, the second conductive sheet 13 extends along a rear side surface of the single battery 1, the second conductive sheet 13 is connected to the second output electrode 115, the first conductive sheet 12 abuts against the second conductive sheet 13 of the single battery 1 adjacent to the front side, the second conductive sheet 13 abuts against the first conductive sheet 12 of the single battery 1 adjacent to the rear side, the first output electrode 114 and the second output electrode 115 are both disposed on the fifth surface 113, the functional membrane is disposed between the adjacent first conductive sheet 12 and the second conductive sheet 13, the elastic member 14 is respectively disposed between the first surface 12 and the first surface 111, and between the second conductive sheet 13 and the second surface, the elastic member 14 has an insulating function and a heat insulating function.
In the second embodiment, the structure of the present embodiment is substantially the same as that of the first embodiment, and embodiment 2 is not shown, but only different in that: the first output electrode 114 and the second output electrode 115 in the first embodiment are both disposed on the fifth surface 113, while one of the first output electrode 114 and the second output electrode 115 in the second embodiment is disposed on the third surface 112, and the other of the first output electrode 114 and the second output electrode 115 is disposed on the fourth surface.
A battery cell 1 according to an embodiment of the second aspect of the present invention will be described in detail with reference to fig. 4 to 10 in conjunction with the embodiment.
Specifically, the battery cell 1 includes: the shell 11, the first conducting plate 12 and the second conducting plate 13. The shell 11 has a first surface 111 and a second surface which are oppositely arranged in a first direction of the shell 11, a first output electrode 114 and a second output electrode 115 are arranged on the shell 11, the first conductive sheet 12 extends along the first surface 111 and is connected with the first output electrode 114, the second conductive sheet 13 extends along the second surface and is connected with the second output electrode 115, the first conductive sheet 12 is used for being abutted against the second conductive sheet 13 of the adjacent single battery 1, and the second conductive sheet 13 is used for being abutted against the first conductive sheet 12 of the adjacent single battery 1. From this, battery monomer 1's simple structure adopts first conducting strip 12 and second conducting strip 13 butt to connect between the battery monomer 1, does not adopt welded connection between the battery monomer 1, has reduced battery module 100's disability rate.
In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like 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 present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. 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 utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A battery module, comprising:
a plurality of battery cells arranged in a stack in a first direction, the battery cells comprising:
the device comprises a shell, a first electrode, a second electrode and a control circuit, wherein the shell is provided with a first surface and a second surface which are oppositely arranged in a first direction of the shell;
the first conducting strip extends along a second direction perpendicular to the first direction and is connected with the first output electrode, the second conducting strip is connected with the second output electrode along the second direction, and in two adjacent single batteries, the first conducting strip of one single battery is abutted against the second conducting strip of the other single battery.
2. The battery module according to claim 1, wherein the battery cell further comprises: and the elastic piece is abutted between the first conductive sheet and the first surface, or the elastic piece is abutted between the second conductive sheet and the second surface.
3. The battery module according to claim 2, wherein the elastic member is an insulating member, and/or the elastic member is a heat insulating member or a heat conducting member.
4. The battery module according to any one of claims 1 to 3, further comprising: a functional membrane disposed between the first and second adjacent conductive sheets, the functional membrane configured to heat the first and second adjacent conductive sheets when a temperature is below a preset temperature value.
5. The battery module according to claim 4, wherein the resistance value of the functional membrane is variable, and the resistance value of the functional membrane is inversely related to temperature.
6. The battery module according to any one of claims 1 to 3, wherein a conductive paste layer is provided between the first conductive sheet and the second conductive sheet which are adjacent to each other.
7. The battery module according to any one of claims 1 to 3, wherein the case has third and fourth surfaces arranged opposite to each other in a length direction, the first and second output poles are provided on the third and fourth surfaces, respectively, or the first and second output poles are provided on one of the third and fourth surfaces; or
The housing has a fifth surface and a sixth surface arranged opposite to each other in the width direction, and the first output pole and the second output pole are provided on the fifth surface and the sixth surface, respectively, or the first output pole and the second output pole are provided on one of the fifth surface and the sixth surface.
8. The battery module according to any one of claims 1 to 3, wherein a projected area of the first conductive sheet on the first surface is not less than two-thirds of a total area of the first surface, and a projected area of the second conductive sheet on the second surface is less than two-thirds of a total area of the second surface.
9. The battery module according to any one of claims 1 to 3, further comprising: the first end plate and the second end plate are respectively arranged at two ends of the plurality of battery cells in the stacking direction, and preset pressing force is arranged between the first end plate and the second end plate and is larger than 6 kPa.
10. A battery cell, comprising:
the device comprises a shell, a first electrode, a second electrode and a control circuit, wherein the shell is provided with a first surface and a second surface which are oppositely arranged in a first direction of the shell;
the first conducting strip extends along a second direction perpendicular to the first direction and is connected with the first output electrode, the second conducting strip extends along the second direction and is connected with the second output electrode, the first conducting strip is used for being abutted against the second conducting strip of the adjacent single battery, and the second conducting strip is used for being abutted against the first conducting strip of the adjacent single battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220765370.4U CN217009487U (en) | 2022-03-31 | 2022-03-31 | Battery module and battery monomer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220765370.4U CN217009487U (en) | 2022-03-31 | 2022-03-31 | Battery module and battery monomer |
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| Publication Number | Publication Date |
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| CN217009487U true CN217009487U (en) | 2022-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220765370.4U Active CN217009487U (en) | 2022-03-31 | 2022-03-31 | Battery module and battery monomer |
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| CN (1) | CN217009487U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115377615A (en) * | 2022-10-21 | 2022-11-22 | 楚能新能源股份有限公司 | Blade battery, battery module and battery module assembly method |
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2022
- 2022-03-31 CN CN202220765370.4U patent/CN217009487U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115377615A (en) * | 2022-10-21 | 2022-11-22 | 楚能新能源股份有限公司 | Blade battery, battery module and battery module assembly method |
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