CN215771455U - Battery with a battery cell - Google Patents
Battery with a battery cell Download PDFInfo
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- CN215771455U CN215771455U CN202122021084.5U CN202122021084U CN215771455U CN 215771455 U CN215771455 U CN 215771455U CN 202122021084 U CN202122021084 U CN 202122021084U CN 215771455 U CN215771455 U CN 215771455U
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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 provides a battery, which comprises a housin, electric core, anodal conductive connecting piece and negative pole conductive connecting piece, electric core setting just includes electric core body and anodal utmost point ear and the negative pole utmost point ear of setting on electric core body in the casing, anodal conductive connecting piece and negative pole conductive connecting piece all form into flat structure, anodal conductive connecting piece sets up in the casing and extends along the thickness direction vertically direction with the battery, anodal conductive connecting piece is connected between anodal utmost point ear and the anodal structure of drawing forth that is used for being connected with consumer, the negative pole conductive connecting piece sets up in the casing and extends along the thickness direction vertically direction with the battery, the negative pole conductive connecting piece is connected between negative pole utmost point ear and the negative pole structure of drawing forth that is used for being connected with consumer. The positive conductive connecting piece and the negative conductive connecting piece which extend in the direction vertical to the thickness direction of the battery do not need to be folded when being arranged in the shell, and the problems of battery volume increase and low utilization rate of the battery cell in the shell caused by folding can be solved.
Description
Technical Field
The present disclosure relates to the field of battery technology, and in particular, to a battery.
Background
In the process of assembling the battery, the positive electrode tab and the negative electrode tab of the battery core need to be respectively provided with the positive conductive connecting piece and the negative conductive connecting piece, and then are installed in the shell of the battery. In the prior art, the positive conductive connecting piece and the negative conductive connecting piece interfere with the battery case when being installed in the battery case, and therefore the positive conductive connecting piece and the negative conductive connecting piece need to be folded. However, the thickness of the folded positive conductive connecting piece and the negative conductive connecting piece is thick, so that the volume of the battery is increased, the shell utilization rate of the battery cell is reduced, and the bending difficulty is high due to the fact that the strength of the positive conductive connecting piece and the strength of the negative conductive connecting piece are high.
SUMMERY OF THE UTILITY MODEL
The purpose of this disclosure is to provide a battery, this battery's compact structure is favorable to reducing the volume of battery, promotes electric core income shell utilization ratio.
In order to achieve the above object, the present disclosure provides a battery including:
a housing;
the battery cell is arranged in the shell and comprises a battery cell body, and a positive electrode lug and a negative electrode lug which are arranged on the battery cell body;
the positive conductive connecting piece is arranged in the shell and extends along the direction vertical to the thickness direction of the battery, and the positive conductive connecting piece is connected between the positive electrode lug and a positive electrode leading-out structure used for connecting electric equipment;
the negative electrode conductive connecting piece is formed into a flat-plate-shaped structure, is arranged in the shell and extends in the direction vertical to the thickness direction of the battery, and is connected between the negative electrode lug and the negative electrode leading-out structure used for connecting the electric equipment.
Optionally, the positive electrode tab and the negative electrode tab are both formed into a folded structure folded along the thickness direction of the battery, the positive electrode conductive connecting piece is connected to the side, away from the battery cell body, of the positive electrode tab, and the negative electrode conductive connecting piece is connected to the side, away from the battery cell body, of the negative electrode tab.
Optionally, the positive pole lug with the negative pole lug all includes relative first section and second section and forms first section with bend section between the second section, first section the second section and bend section constitutes the U-shaped, first section is located the electric core body with between the second section, anodal conductive connecting piece is connected on the second section of positive pole lug, the negative pole conductive connecting piece is connected on the second section of negative pole lug.
Optionally, the size of the positive electrode tab in the thickness direction of the battery is smaller than or equal to the size of the battery cell body in the thickness direction of the battery, and the size of the positive electrode conductive connecting piece in the thickness direction of the battery is smaller than or equal to the size of the positive electrode tab in the thickness direction of the battery;
the size of the negative pole lug in the thickness direction of the battery is smaller than or equal to the size of the battery cell body in the thickness direction of the battery, and the size of the negative pole conductive connecting piece in the thickness direction of the battery is smaller than or equal to the size of the negative pole lug in the thickness direction of the battery.
Optionally, the positive conductive connecting piece partially overlaps with the positive electrode tab, and the positive conductive connecting piece protrudes from the positive electrode tab along the extending direction thereof, the negative conductive connecting piece partially overlaps with the negative electrode tab, and the negative conductive connecting piece protrudes from the negative electrode tab along the extending direction thereof.
Optionally, the battery still includes first sticky tape and second sticky tape, first sticky tape covers anodal utmost point ear with on the anodal conductive connecting piece, and cover anodal utmost point ear with the junction of anodal conductive connecting piece, the second sticky tape covers negative pole utmost point ear with on the negative pole conductive connecting piece, and cover negative pole utmost point ear with the junction of negative pole conductive connecting piece.
Optionally, one of the positive pole leading-out structure and the negative pole leading-out structure is an electrode post, the other of the positive pole leading-out structure and the negative pole leading-out structure is the casing, an electrode post hole is formed in the casing, the electrode post penetrates through the electrode post hole, the battery further comprises an insulating part, and the insulating part is located between the casing and the electrode post.
Optionally, the utmost point post includes the cylinder and forms utmost point post connecting piece on the cylinder, the cylinder wears to locate utmost point post hole, utmost point post connecting piece connect in anodal electrically conductive connecting piece or the electrically conductive connecting piece of negative pole.
Optionally, the pole further includes an outer pole cap formed at one end of the cylinder, the outer pole cap is located outside the housing, the insulating member includes a sleeve portion, a first flange formed on the sleeve portion, and a second flange formed on the sleeve portion, the sleeve portion is sleeved on the pole, the first flange is located between the outer pole cap and an outer surface of the housing, and the second flange is located between the pole connecting member and an inner surface of the housing.
Optionally, the battery is the lamination battery, electric core body includes a plurality of positive plates and a plurality of negative pole piece, every be provided with anodal ear on the positive plate, every be provided with negative pole ear on the negative pole piece, it is a plurality of anodal utmost point ear mutually connects and constitutes anodal utmost point ear, it is a plurality of negative pole utmost point ear mutually connects and constitutes negative pole utmost point ear.
Through the technical scheme, compare in the thickness direction of battery, the size of battery on the length direction or the width direction of perpendicular to its thickness direction is great, anodal conductive connecting piece and the electrically conductive connecting piece of negative pole extend along the length direction or the width direction with the thickness direction vertically of battery, and anodal conductive connecting piece and the electrically conductive connecting piece of negative pole all form flat structure, can satisfy the size requirement of anodal conductive connecting piece and the electrically conductive connecting piece of negative pole, can avoid anodal conductive connecting piece and the electrically conductive connecting piece of negative pole to take place mechanical interference with the casing again, thereby make anodal conductive connecting piece and the electrically conductive connecting piece of negative pole need not to fold because of can taking place mechanical interference with the casing. That is to say, in this disclosure, the anodal conductive connecting piece and the negative pole conductive connecting piece that extend along the direction perpendicular to the thickness direction of battery need not to fold when packing into the casing, can solve on the one hand because of anodal conductive connecting piece and the folding problem that the battery volume increase that leads to of negative pole conductive connecting piece, electric core income shell utilization ratio is low, on the other hand can avoid folding anodal conductive connecting piece and negative pole conductive connecting piece to simplify the assembly process of battery.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
fig. 1 is a perspective view illustrating connection of a battery cell with a positive conductive connecting member and a negative conductive connecting member in a battery according to an exemplary embodiment of the present disclosure;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a perspective view of a battery provided in an exemplary embodiment of the present disclosure after cell pasting;
fig. 4 is a cross-sectional view of a battery provided by an exemplary embodiment of the present disclosure;
FIG. 5 is an enlarged view of portion B of FIG. 4;
FIG. 6 is an enlarged view of portion C of FIG. 4;
fig. 7 is a top view of a battery provided in an exemplary embodiment of the present disclosure.
Description of the reference numerals
1-a battery; 10-a housing; 20-electric core; 21-a cell body; 22-positive pole tab; 23-a negative electrode tab; 241-first section; 242-a second segment; 243-bending section; 30-positive conductive connection; 40-negative conductive connector; 50-a first tape; 60-a second tape; 70-pole; 71-a column; 72-pole connecting piece; 73-outer pole cap; 80-an insulator; 81-a sleeve portion; 82-a first flange; 83-second flange.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the present disclosure, unless otherwise stated, the use of directional terms such as "length direction, width direction, thickness direction" is defined in the direction of the drawing plane shown in fig. 1 or 3, and specifically, as shown in fig. 1, "inner and outer" refer to the inner and outer of the outline of the corresponding structure, and "far and near" refers to the far and near from the corresponding structure. Furthermore, the terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Referring to fig. 1-7, the present disclosure provides a battery 1 including a case 10, a cell 20, a positive conductive connector 30, and a negative conductive connector 40. Wherein, the battery cell 20 is arranged in the casing 10 and comprises a battery cell body 21, and a positive electrode tab 22 and a negative electrode tab 23 arranged on the battery cell body 21, the positive electrode conductive connecting member 30 is formed into a flat structure, the positive electrode conductive connecting member 30 is arranged in the casing 10 and extends along a direction perpendicular to the thickness direction of the battery 1, the positive electrode conductive connecting member 30 is connected between the positive electrode tab 22 and a positive electrode lead-out structure for connecting with the electric equipment, so that the current of the positive electrode tab 22 can be transmitted to the positive electrode lead-out structure through the positive electrode conductive connecting member 30 and is led to the outside of the casing 10 from the inside of the casing 10 through the positive electrode lead-out structure, the negative electrode conductive connecting member 40 is formed into a flat structure, the negative electrode conductive connecting member 40 is arranged in the casing 10 and extends along a direction perpendicular to the thickness direction of the battery 1, the negative electrode conductive connecting member 40 is connected between the negative electrode tab 23 and a negative electrode lead-out structure for connecting with the electric equipment, so that the negative lead-out structure leads current from the outside of the case 10 to the inside of the case and transfers it to the negative tab 23 via the negative conductive connector 40.
Here, the direction perpendicular to the thickness direction of the battery 1 mentioned above may be the longitudinal direction of the battery 1, or may be the width direction of the battery 1, and the present disclosure is not limited thereto. In addition, the positive conductive connection member 30 may extend in a direction perpendicular to the thickness direction of the battery 1, and the negative conductive connection member 40 may extend in a direction perpendicular to the thickness direction of the battery 1, in which both the positive conductive connection member 30 and the negative conductive connection member 40 extend in the length direction or the width direction of the battery 1, or one of the positive conductive connection member 30 and the negative conductive connection member 40 may extend in the length direction of the battery 1, and the other may extend in the width direction of the battery 1.
Through the technical scheme, compared with the thickness direction of the battery 1, the size of the battery 1 in the length direction or the width direction perpendicular to the thickness direction of the battery 1 is larger, the positive conductive connecting piece 30 and the negative conductive connecting piece 40 extend in the length direction or the width direction perpendicular to the thickness direction of the battery 1, and the positive conductive connecting piece and the negative conductive connecting piece are both formed into a flat plate-shaped structure, so that the size requirements of the positive conductive connecting piece 30 and the negative conductive connecting piece 40 can be met, the positive conductive connecting piece 30 and the negative conductive connecting piece 40 can be prevented from being mechanically interfered with the shell 10, and the positive conductive connecting piece 30 and the negative conductive connecting piece 40 are not required to be folded due to mechanical interference with the shell. That is, in the present disclosure, the positive conductive connecting member 30 and the negative conductive connecting member 40 extending in the direction perpendicular to the thickness direction of the battery 1 do not need to be folded when being installed in the case 10, so that the problems of the increase in the volume of the battery 1 and the low utilization rate of the battery cell when the battery cell is placed in the case due to the folding of the positive conductive connecting member 30 and the negative conductive connecting member 40 can be solved, and the folding of the positive conductive connecting member 30 and the negative conductive connecting member 40 can be avoided, thereby simplifying the assembly process of the battery 1.
And, because the positive conductive connecting piece 30 and the negative conductive connecting piece 40 are both formed into a flat structure, on one hand, the thickness of the flat positive conductive connecting piece 30 and the flat negative conductive connecting piece 40 formed into the flat structure is thinner, so the occupied volume of the positive conductive connecting piece 30 and the negative conductive connecting piece 40 in the length direction or the width direction of the battery 1 can be reduced, and on the other hand, the above connection mode can also enable the positive conductive connecting piece 30 to be arranged close to the positive leading-out structure and the negative conductive connecting piece 40 to be arranged close to the negative leading-out structure, thereby facilitating the connection between the positive conductive connecting piece 30 and the positive leading-out structure and the connection between the negative conductive connecting piece 40 and the negative leading-out structure, and reducing the connection difficulty.
In one embodiment provided by the present disclosure, as shown in fig. 1 to 3, the positive electrode tab 22 and the negative electrode tab 23 are both formed into a folded structure that can be folded along the thickness direction of the battery 1, the positive electrode conductive connecting member 30 is connected to a side of the positive electrode tab 22 away from the cell body 21, and the negative electrode conductive connecting member 40 is connected to a side of the negative electrode tab 23 away from the cell body 21. Here, in other embodiments, the positive electrode conductive connection member 30 and the negative electrode conductive connection member 40 may also be straight rod-shaped.
Here, the above-mentioned formation of both the cathode tab 22 and the anode tab 23 so as to be folded in the thickness direction of the battery 1 means that the cathode tab 22 and the anode tab 23 are stacked in the longitudinal direction or the width direction of the battery 1 when the cathode tab 22 and the anode tab 23 are folded.
In the assembly process of the battery core, the positive conductive connecting piece 30 and the positive tab 22 can be connected firstly, the negative conductive connecting piece 40 is connected with the negative tab 23, then the positive tab 22 and the negative tab 23 are bent along the thickness direction of the battery 1, and after the positive tab 22 and the negative tab 23 are bent, the positive conductive connecting piece 30 and the negative conductive connecting piece 40 extend towards the direction vertical to the thickness direction of the battery 1. That is, the positive and negative electrode tabs 22 and 23 may be folded without the positive and negative conductive connecting members 30 and 40 being folded in the present disclosure, and it is easier to fold the positive and negative electrode tabs 22 and 23 since the positive and negative electrode tabs 22 and 23 are thinner and lower in strength than the positive and negative conductive connecting members 30 and 40.
The positive and negative electrode tabs 22 and 23 may be folded once or more according to the size of the positive and negative electrode tabs 22 and 23 and the size of the case 10, which is not limited in the present disclosure. As shown in fig. 1 to 3, in an embodiment provided by the present disclosure, each of the positive electrode tab 22 and the negative electrode tab 23 includes a first segment 241 and a second segment 242 opposite to each other, and a bent segment 243 formed between the first segment 241 and the second segment 242, the first segment 241, the second segment 242, and the bent segment 243 form a U shape, the first segment 241 is located between the cell body 21 and the second segment 242, the positive electrode conductive connecting member 30 is connected to the second segment 242 of the positive electrode tab 22, and the negative electrode conductive connecting member 40 is connected to the second segment 242 of the negative electrode tab 23. Because the positive conductive connecting piece 30 is connected to the second section 242 of the positive tab 22 and is connected to the side of the positive tab 22 away from the cell body 21, and the negative conductive connecting piece 40 is connected to the second section 242 of the negative tab 23 and is connected to the side of the negative tab 23 away from the cell body 21, the positive conductive connecting piece 30 and the negative conductive connecting piece 40 will not interfere with the process of bending the positive tab 22 and the negative tab 23 into a U-shape, thus, when the positive and negative electrode tabs 22 and 23 are bent, the gap between the first and second sections 241 and 242 of the positive electrode tab 22 may be made as small as possible, and the gap between the first segment 241 and the second segment 242 of the negative electrode tab 23 is as small as possible, the thickness of the positive electrode tab 22 and the negative electrode tab 23 in the longitudinal direction or the width direction of the battery 1 is further reduced, and the volume of the battery 1 is further reduced.
In order to further reduce the overall volume of the battery 1, in the present disclosure, as shown in fig. 1 to 3 and 7, the dimension of the positive electrode tab 22 in the thickness direction of the battery 1 is smaller than or equal to the dimension of the cell body 21 in the thickness direction of the battery 1, the dimension of the positive electrode conductive connection member 30 in the thickness direction of the battery 1 is smaller than or equal to the dimension of the positive electrode tab 22 in the thickness direction of the battery 1, the dimension of the negative electrode tab 23 in the thickness direction of the battery 1 is smaller than or equal to the dimension of the cell body 21 in the thickness direction of the battery 1, and the dimension of the negative electrode conductive connection member 40 in the thickness direction of the battery 1 is smaller than or equal to the dimension of the negative electrode tab 23 in the thickness direction of the battery 1.
That is to say, the size of the positive electrode tab 22, the positive electrode conductive connecting member 30, the negative electrode tab 23 and the negative electrode conductive connecting member 40 in the thickness direction of the battery 1 is smaller than or equal to the size of the battery cell body 21 in the thickness direction of the battery 1, so that when the battery cell 20 enters the casing 10, the positive electrode tab 22, the positive electrode conductive connecting member 30, the negative electrode tab 23 and the negative electrode conductive connecting member 40 do not increase the thickness of the battery cell body 21 additionally, and the size of the battery 1 is increased due to the fact that the size of the structure is prevented from being too large.
Alternatively, in order to further improve the connection effect of the positive conductive connection member 30 and the positive tab 22 and the connection effect of the negative conductive connection member 40 and the negative tab 23, referring to fig. 1 to 7, the positive conductive connection member 30 partially overlaps the positive tab 22, the positive conductive connection member 30 protrudes from the positive tab 22 along the extending direction thereof, the negative conductive connection member 40 partially overlaps the negative tab 23, and the negative conductive connection member 40 protrudes from the negative tab 23 along the extending direction thereof. The positive conductive connecting piece 30 protrudes from the positive tab 22 along the extending direction, which means that the size of the positive conductive connecting piece 30 along the length direction or the width direction of the battery 1 is larger than that of the positive tab 22 along the length direction or the width direction of the battery 1, so that the positive conductive connecting piece 30 and the negative conductive connecting piece 40 can cover a larger range, which is convenient for the subsequent welding between the positive conductive connecting piece 30 and the positive leading-out structure and between the negative conductive connecting piece 40 and the negative leading-out structure, in addition, when the positive conductive connecting piece 30 and the positive tab 22 are welded, the butt joint precision requirements between the positive conductive connecting piece 30 and the positive tab 22 and between the negative conductive connecting piece 40 and the negative tab 23 are low, the positioning difficulty is small, and the welding operation of operators is more convenient.
Optionally, as shown in fig. 3, the battery 1 may further include a first adhesive tape 50 and a second adhesive tape 60, wherein the first adhesive tape 50 covers the positive electrode tab 22 and the positive electrode conductive connection member 30 and covers the connection between the positive electrode tab 22 and the positive electrode conductive connection member 30, and the second adhesive tape 60 covers the negative electrode tab 23 and the negative electrode conductive connection member 40 and covers the connection between the negative electrode tab 23 and the negative electrode conductive connection member 40. The first adhesive tape 50 covers the joint of the positive electrode tab 22 and the positive electrode conductive connecting piece 30, so that the positive electrode tab 22 and the positive electrode conductive connecting piece 30 can be protected, and damage to the structure of the battery 1 caused by scratch of drawn wires generated after welding and other structures in the battery 1 is avoided, thereby reducing potential safety hazards.
In addition, the first adhesive tape 50 and the second adhesive tape 60 may be insulating, so that the first adhesive tape 50 and the second adhesive tape 60 may isolate the tab, and prevent the tab or the conductive connecting member from contacting other structures in the battery 1 to cause discharge, short circuit, and the like.
Alternatively, as shown in fig. 5, in an embodiment, one of the positive electrode lead-out structure and the negative electrode lead-out structure may be a pole 70, the other of the positive electrode lead-out structure and the negative electrode lead-out structure is a casing 10, a pole hole is formed on the casing 10, the pole 70 is inserted into the pole hole, and the battery 1 further includes an insulating member 80, wherein the insulating member 80 is located between the casing 10 and the pole 70. The positive pole leading-out structure is connected with the positive pole conductive connecting piece 30, and the negative pole leading-out structure is connected with the negative pole conductive connecting piece 40, so that the pole 70 and the shell 10 have different electrical properties, and an insulating piece 80 is further arranged between the pole 70 and the shell 10, and the insulating piece 80 can play an isolation role in the pole 70, thereby avoiding the situation that the battery 1 is short-circuited due to the contact between the pole 70 and the shell 10.
In other embodiments, the case 10 may include a case base and a cover, the case base and the cover are insulated from each other, one of the positive electrode lead-out structure and the negative electrode lead-out structure may be the case base, and the other of the positive electrode lead-out structure and the negative electrode lead-out structure may be the cover. Alternatively, the positive electrode lead-out structure may be a first electrode post disposed on the casing 10, the negative electrode lead-out structure may be a second electrode post disposed on the casing 10, and the first electrode post and the second electrode post are insulated from each other.
Alternatively, in order to facilitate the connection between the electrode post 70 and the positive conductive connector 30 or the negative conductive connector 40, in the present disclosure, as shown in fig. 5, the electrode post 70 may include a column body 71 and an electrode post connector 72 formed on the column body 71, the column body 71 is inserted into the electrode post hole, and the electrode post connector 72 is connected to the positive conductive connector 30 or the negative conductive connector 40. It is understood that when the positive electrode lead-out structure is the electrode post 70, the electrode post connector 72 is connected to the positive electrode conductive connector 30; when the negative lead structure is a post 70, the post connector 72 is connected to the negative conductive connector 40.
Utmost point post connecting piece 72 can compensate the distance between anodal conductive connecting piece 30 or the electrically conductive connecting piece 40 of negative pole and utmost point post 70, for example, when anodal conductive connecting piece 30 or the electrically conductive connecting piece 40 of negative pole are far away from utmost point post 70, can be through linking to each other with utmost point post connecting piece 72, also can reach the effect of linking to each other with utmost point post 70, it is more convenient in the connection process, can adapt to more being connected between anodal conductive connecting piece 30 or the electrically conductive connecting piece 40 of negative pole and utmost point post 70 under the different situation, reduce the required precision to in the battery 1 course of working, promote the fault-tolerant rate in the connection process.
Optionally, as shown in fig. 5, the pole 70 further includes an outer pole cap 73 formed at one end of the cylinder 71, the outer pole cap 73 is located outside the housing 10, the insulating member 80 may include a sleeve portion 81, a first flange 82 formed on the sleeve portion 81, and a second flange 83 formed on the sleeve portion 81, the sleeve portion 81 is sleeved on the pole 70, the first flange 82 is located between the outer pole cap 73 and the outer surface of the housing 10, and the second flange 83 is located between the pole connecting member 72 and the inner surface of the housing 10. The sleeve portion 81 of the insulating member 80 can play an insulating role between the pole 70 and the casing 10, the first flange 82 of the insulating member 80 can play an insulating role on the outer pole cap 73 of the pole 70 and the casing 10, and the second flange 83 can play an insulating role on the pole connecting member 72 and the casing 10, so that the pole 70, the pole connecting member 72 and the casing 10 are prevented from contacting, and the short circuit of the battery cell 20 is avoided.
Optionally, in an embodiment provided by the present disclosure, the battery 1 may be a laminated battery 1, the cell body 21 includes a plurality of positive plates and a plurality of negative plates, each positive plate is provided with a positive electrode tab portion, each negative plate is provided with a negative electrode tab portion, the plurality of positive electrode tab portions 22 are connected with each other to form a positive electrode tab 22, and the plurality of negative electrode tab portions are connected with each other to form a negative electrode tab 23. Before the positive electrode tab 22 is connected with the positive electrode conductive connecting piece 30 and the negative electrode tab 23 is connected with the positive electrode conductive connecting piece 30, the positive electrode tab parts of a plurality of positive electrode pieces of the laminated battery 1 are connected with each other to form the positive electrode tab 22, and the negative electrode tab parts of a plurality of negative electrode pieces of the laminated battery 1 are connected with each other to form the negative electrode tab 23.
In other embodiments provided by the present disclosure, the battery 1 may also be a wound battery 1, and in short, the present disclosure does not limit the kind of the battery 1.
Alternatively, in the present disclosure, the positive electrode tab 22 and the negative electrode tab 23 may be disposed on the same side of the cell body 21, or may be disposed on different sides of the cell body 21, which is not limited in the present disclosure.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
1. A battery, comprising:
a housing (10);
the battery cell (20) is arranged in the shell (10) and comprises a battery cell body (21) and a positive electrode lug (22) and a negative electrode lug (23) which are arranged on the battery cell body (21);
a positive conductive connector (30) formed in a plate-like structure, the positive conductive connector (30) being disposed in the case (10) and extending in a direction perpendicular to a thickness direction of the battery (1), the positive conductive connector (30) being connected between the positive tab (22) and a positive lead-out structure for connecting an electric device;
the negative electrode conductive connecting piece (40) is formed into a flat structure, the negative electrode conductive connecting piece (40) is arranged in the shell (10) and extends along the direction vertical to the thickness direction of the battery (1), and the negative electrode conductive connecting piece (40) is connected between the negative electrode lug (23) and a negative electrode leading-out structure used for connecting electric equipment.
2. The battery according to claim 1, wherein the positive electrode tab (22) and the negative electrode tab (23) are each formed in a folded structure folded in a thickness direction of the battery (1), the positive electrode conductive connecting member (30) is connected to a side of the positive electrode tab (22) away from the cell body (21), and the negative electrode conductive connecting member (40) is connected to a side of the negative electrode tab (23) away from the cell body (21).
3. The battery of claim 2, wherein the positive electrode tab (22) and the negative electrode tab (23) each comprise a first section (241) and a second section (242) which are opposite to each other, and a bent section (243) formed between the first section (241) and the second section (242), the first section (241), the second section (242), and the bent section (243) form a U shape, the first section (241) is located between the cell body (21) and the second section (242), the positive electrode conductive connecting member (30) is connected to the second section (242) of the positive electrode tab (22), and the negative electrode conductive connecting member (40) is connected to the second section (242) of the negative electrode tab (23).
4. The battery according to claim 1, wherein the dimension of the positive electrode tab (22) in the thickness direction of the battery (1) is smaller than or equal to the dimension of the cell body (21) in the thickness direction of the battery (1), and the dimension of the positive electrode conductive connection member (30) in the thickness direction of the battery (1) is smaller than or equal to the dimension of the positive electrode tab (22) in the thickness direction of the battery (1);
the size of the negative pole lug (23) in the thickness direction of the battery (1) is smaller than or equal to the size of the battery cell body (21) in the thickness direction of the battery (1), and the size of the negative pole conductive connecting piece (40) in the thickness direction of the battery (1) is smaller than or equal to the size of the negative pole lug (23) in the thickness direction of the battery (1).
5. The battery according to claim 1, wherein the positive conductive connector (30) partially overlaps the positive tab (22) and the positive conductive connector (30) protrudes from the positive tab (22) in the direction of extension thereof, the negative conductive connector (40) partially overlaps the negative tab (23) and the negative conductive connector (40) protrudes from the negative tab (23) in the direction of extension thereof.
6. The battery according to claim 1, wherein the battery (1) further comprises a first adhesive tape (50) and a second adhesive tape (60), wherein the first adhesive tape (50) covers the positive electrode tab (22) and the positive electrode conductive connecting member (30) and covers the joint of the positive electrode tab (22) and the positive electrode conductive connecting member (30), and the second adhesive tape (60) covers the negative electrode tab (23) and the negative electrode conductive connecting member (40) and covers the joint of the negative electrode tab (23) and the negative electrode conductive connecting member (40).
7. The battery according to any one of claims 1-6, wherein one of the positive electrode lead-out structure and the negative electrode lead-out structure is a pole (70), the other of the positive electrode lead-out structure and the negative electrode lead-out structure is the housing (10), a pole hole is formed on the housing (10), the pole (70) is arranged in the pole hole in a penetrating manner, and the battery (1) further comprises an insulating member (80), wherein the insulating member (80) is positioned between the housing (10) and the pole (70).
8. The battery according to claim 7, wherein the pole (70) comprises a post body (71) and a pole connector (72) formed on the post body (71), the post body (71) is arranged in the pole hole, and the pole connector (72) is connected to the positive conductive connector (30) or the negative conductive connector (40).
9. The battery of claim 8, wherein the pole (70) further comprises an outer pole cap (73) formed at one end of the post (71), the outer pole cap (73) being located outside the housing (10), the insulator (80) comprising a sleeve portion (81), a first flange (82) formed on the sleeve portion (81), and a second flange (83) formed on the sleeve portion (81), the sleeve portion (81) being fitted over the pole (70), the first flange (82) being located between the outer pole cap (73) and an outer surface of the housing (10), the second flange (83) being located between the pole connector (72) and an inner surface of the housing (10).
10. The battery according to any one of claims 1-6, wherein the battery (1) is a laminated battery (1), and the cell body (21) comprises a plurality of positive plates and a plurality of negative plates, wherein each positive plate is provided with a positive tab portion, each negative plate is provided with a negative tab portion, a plurality of positive tab portions are connected with each other to form the positive tab (22), and a plurality of negative tab portions are connected with each other to form the negative tab (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122021084.5U CN215771455U (en) | 2021-08-25 | 2021-08-25 | Battery with a battery cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122021084.5U CN215771455U (en) | 2021-08-25 | 2021-08-25 | Battery with a battery cell |
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| Publication Number | Publication Date |
|---|---|
| CN215771455U true CN215771455U (en) | 2022-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122021084.5U Active CN215771455U (en) | 2021-08-25 | 2021-08-25 | Battery with a battery cell |
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| Country | Link |
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| CN (1) | CN215771455U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023185285A1 (en) * | 2022-03-26 | 2023-10-05 | 珠海冠宇电池股份有限公司 | Battery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023185285A1 (en) * | 2022-03-26 | 2023-10-05 | 珠海冠宇电池股份有限公司 | Battery |
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