CN203192905U - Lithium ion power battery - Google Patents
Lithium ion power battery Download PDFInfo
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- CN203192905U CN203192905U CN2013201439483U CN201320143948U CN203192905U CN 203192905 U CN203192905 U CN 203192905U CN 2013201439483 U CN2013201439483 U CN 2013201439483U CN 201320143948 U CN201320143948 U CN 201320143948U CN 203192905 U CN203192905 U CN 203192905U
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- positive terminal
- lithium
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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 relates to a lithium ion power battery. The lithium ion power battery comprises an anode column (1), a cathode column (2) and a connection piece (3), wherein each one of the anode column (1) and the cathode column (2) is respectively provided with a fastening nut (11); each one of the anode column (1) and the cathode column (2) is respectively provided with a central hole (16); each central hole (16) is internally provided with a rigid stud (10); the anode column (1) and the cathode column (2) are respectively connected with the rigid studs (10) through connection pins (12); each rigid stud (10) is provided with a pressing nut (4); the connection piece (3) is pressed and fixed on the fastening nuts (11) through the pressing nuts (4). According to the lithium ion power battery disclosed by the utility model, the connection firmness of the anode column, the cathode column and the connection piece is improved, the large-current discharging performance of the lithium ion power battery is improved, and the whole battery is more suitable for vehicle-mounted vibration fields and the like to use.
Description
Technical field
The utility model relates to and belongs to the battery technology field, more particularly, relates to a kind of lithium-ion-power cell.
Background technology
At present, because the factor of electrochemical corrosion, lithium ion battery pole can only use aluminium and copper, or the marginal stainless steel of current potential or nickel, because stainless conductivity is too low, be not suitable for doing pole and use, and the processing characteristics of nickel is bad, cost is high, and current potential only is fit to do negative pole near copper.
In the prior art, the connected mode between cell inner pole piece and pole mainly contains following several mode:
First kind is as shown in Figure 1, and electric core positive pole ear a, negative lug b directly are welded on respectively on positive terminal 1, the negative terminal 2 by ultrasonic bond.
Second kind is as shown in Figure 2, and electric core positive pole ear a is fixed on the positive terminal 1 by aluminium rivet A, and negative lug b is fixed on the negative terminal 2 by copper rivet B.
The third is as shown in Figure 3, and electric core positive pole ear a is fixed on the positive terminal 1 by bolt C, and negative lug b is fixed on the negative terminal 2 by bolt C.
Consider battery weight, volume and integral installation prescription formula, bonding area is less on the pole, and limited with the bonding area of lug, conductive capability is limited.
Riveted joint or the bolted mode contact resistance when connecting is far longer than welding again, in the big electric current use of electrokinetic cell more than several modes all undesirable.
Need brace be installed at the pole body when connection in series-parallel connects between traditional cell, the mounting means of brace has following several:
First kind is as shown in Figure 4, whole positive terminal 1 adopts aluminium to make, 2 of whole negative terminals adopt copper material to make, for fixing of connection in series-parallel brace 3 between monomer, must make screw thread at the cylinder of positive terminal 1 and the reservation of negative terminal 2 upper ends, pass through nut then 4 fixedly connected 3, realize that the connection in series-parallel between cell connects, or as shown in Figure 5, offer screwed hole 5 at positive terminal 1 and negative terminal 2 centers, pass through bolt then 6 fixedly connected 3, realize that the connection in series-parallel between cell connects, but because the intensity of copper and aluminium is lower, the screw thread of making is yielding, wearing and tearing, be easy to form stripped thread, thread off, be not suitable for using at the automobile that has the vibrations factor.
Second kind as shown in Figure 6, offer screwed hole of centre 7 at positive terminal 1 and negative terminal 2, steel-wire screw-socket 8 is installed then, pass through bolt again 6 fixedly connected 3, realize that the connection in series-parallel between cell connects, or as shown in Figure 7, in screwed hole of centre 7, screw in rigid threaded rod 9, pass through nut again 4 fixedly connected 3, realize that the connection in series-parallel between cell connects, this dual mode improves to some extent, but in fastening process, it is not high that strength can be transferred to intensity again by steel-wire screw-socket 8 or rigid threaded rod 9, yielding, on the screw thread of the screwed hole of centre 7 of wearing and tearing, and technology realizes complicated, cost is higher, is not suitable for equally using at the automobile that has the vibrations factor.
The utility model content
The technical problems to be solved in the utility model is, provides a kind of brace to connect the lithium-ion-power cell firm, that the internal resistance of cell is low, heavy-current discharge performance is strong.
The technical scheme that its technical problem that solves the utility model adopts is: construct a kind of lithium-ion-power cell, comprise positive terminal, negative terminal and brace, be respectively equipped with clamp nut on described positive terminal and the negative terminal, be respectively equipped with centre bore on described positive terminal and the negative terminal, be provided with the rigidity double-screw bolt in centre bore, described positive terminal, negative terminal are connected by connecting pin with described rigidity double-screw bolt respectively; On the described rigidity double-screw bolt clamp nut is installed, described brace is pressed abd fixed on the clamp nut by described clamp nut.
In lithium-ion-power cell described in the utility model, described positive terminal, negative terminal and rigidity double-screw bolt are provided with horizontal pin-and-hole with one heart, and described connecting pin is arranged in the described pin-and-hole.
In lithium-ion-power cell described in the utility model, also comprise positive pole ear and negative lug, be provided with plus plate current-collecting body between described positive terminal and the positive pole ear, be provided with negative current collector between described negative electrode pole and the negative lug.
In lithium-ion-power cell described in the utility model, described positive pole ear is welded on an end of plus plate current-collecting body, and described positive terminal is welded on the other end of described plus plate current-collecting body; Described negative lug is welded on an end of negative current collector, and described negative electrode pole is welded on the other end of described negative current collector.
In lithium-ion-power cell described in the utility model, also comprise cover plate, described clamp nut is pressed abd fixed on described cover plate on positive terminal and the negative terminal.
In lithium-ion-power cell described in the utility model, described positive terminal is made of copper, and described negative terminal is made of aluminum, and described rigidity double-screw bolt is made by stainless steel or high-carbon steel material.
Implement lithium-ion-power cell of the present utility model, have following beneficial effect:
Rigidity double-screw bolt and positive and negative pole split arrange, and positive terminal, negative terminal and rigidity double-screw bolt can adopt different materials respectively.The rigidity double-screw bolt is connected by connecting pin with positive and negative pole, is connected firmly, and easy accessibility, and positive and negative pole inside need not to arrange internal thread does not exist the stripped thread that internal thread distortion, wearing and tearing cause, the problem of dropout.
The rigidity double-screw bolt can adopt the higher stainless steel material of intensity or high-carbon steel material to make, not yielding at the screw thread that the rigidity double-screw bolt is made, can improve the fastness that is connected with clamp nut, thereby improved the fastness that is connected of positive and negative pole and brace, reduced the internal resistance of battery, improved the heavy-current discharge performance of lithium-ion-power cell, entire cell is more suitable for the vehicle-mounted vibrations occasion that waits and uses.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the structural representation of the connected mode one between cell inner pole piece and pole in the background technology;
Fig. 2 is the structural representation of the connected mode two between cell inner pole piece and pole in the background technology;
Fig. 3 is the structural representation of the connected mode three between cell inner pole piece and pole in the background technology;
Fig. 4 is the structural representation that the execution mode one of brace is installed on the lithium-ion-power cell in the background technology;
Fig. 5 is the structural representation that the execution mode two of brace is installed on the lithium-ion-power cell in the background technology;
Fig. 6 is the structural representation that the execution mode three of brace is installed on the lithium-ion-power cell in the background technology;
Fig. 7 is the structural representation that the execution mode four of brace is installed on the lithium-ion-power cell in the background technology;
Fig. 8 is the structural representation of the utility model lithium-ion-power cell;
Fig. 9 is the cutaway view of Fig. 8.
Embodiment
Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast accompanying drawing and describe embodiment of the present utility model in detail.
As Fig. 8-shown in Figure 9, lithium-ion-power cell of the present utility model comprises positive terminal 1, negative terminal 2 and brace 3.Be respectively equipped with clamp nut 11 on positive terminal 1 and the negative terminal 2, clamp nut 11 is threaded with positive terminal 1, negative terminal 2.Be respectively equipped with centre bore 16 on positive terminal 1 and the negative terminal 2, in centre bore 16, be provided with rigidity double-screw bolt 10.Positive terminal 1, negative terminal 2 are connected by connecting pin 12 with rigidity double-screw bolt 10 respectively.Positive terminal 1, negative terminal 2 and rigidity double-screw bolt 10 are provided with horizontal pin-and-hole 17 with one heart, and connecting pin 12 is arranged in the pin-and-hole 17.Clamp nut 4 is installed on the rigidity double-screw bolt 10, and brace 3 is pressed abd fixed on the clamp nut 11 by clamp nut 4.
Positive terminal 1 can adopt different materials with negative terminal 2, and in the present embodiment, positive terminal 1 is made of copper, and negative terminal 2 is made of aluminum.Rigidity double-screw bolt 10 can be made by stainless steel or high-carbon steel material.
The utility model rigidity double-screw bolt 10 and positive terminal 1, negative terminal 2 split settings, positive terminal 1, negative terminal 2 and rigidity double-screw bolt 10 can adopt different materials respectively.Rigidity double-screw bolt 10 is connected by connecting pin 12 with positive terminal 1, negative terminal 2, is connected firmly, and easy accessibility, and positive terminal 1, negative terminal 2 inside need not to arrange internal thread does not exist the stripped thread that internal thread distortion, wearing and tearing cause, the problem of dropout.Rigidity double-screw bolt 10 can adopt the higher stainless steel material of intensity or high-carbon steel material to make, not yielding at the screw thread that rigidity double-screw bolt 10 is made, can improve the fastness that is connected with clamp nut 4, thereby improved the fastness that is connected of positive terminal 1, negative terminal 2 and brace 3, reduced the internal resistance of battery, improved the heavy-current discharge performance of lithium-ion-power cell, entire cell is more suitable for the vehicle-mounted vibrations occasion that waits and uses.
Further, lithium-ion-power cell also comprises positive pole ear a and negative lug b, is provided with plus plate current-collecting body 14 between positive terminal 1 and the positive pole ear a, is provided with negative current collector 15 between negative electrode pole 2 and the negative lug b.Positive pole ear a is welded on an end of plus plate current-collecting body 14, and positive terminal 1 is welded on the other end of plus plate current-collecting body 14; Negative lug b is welded on an end of negative current collector 15, and negative electrode pole 2 is welded on the other end of negative current collector 15, and the welding manner in the present embodiment is argon arc welding.Increase the contact area of positive pole ear a and positive terminal 1, negative lug b and negative terminal 2 by welding plus plate current-collecting body 14 and negative current collector 15, further improved the big electric current power supply capacity of battery, reduced contact resistance, be beneficial to the heavy-current discharge of battery.
Further, lithium-ion-power cell also comprises cover plate 13, and positive terminal 1, negative terminal 2 closely cooperate by clamp nut 11 with cover plate 13, and clamp nut 11 is pressed abd fixed on cover plate 13 on positive terminal 1 and the negative terminal 2.
By reference to the accompanying drawings embodiment of the present utility model is described above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; rather than it is restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away under the scope situation that the utility model aim and claim protect, also can make a lot of forms, these all belong within the protection of the present utility model.
Claims (6)
1. lithium-ion-power cell, comprise positive terminal (1), negative terminal (2) and brace (3), be respectively equipped with clamp nut (11) on described positive terminal (1) and the negative terminal (2), it is characterized in that, be respectively equipped with centre bore (16) on described positive terminal (1) and the negative terminal (2), be provided with rigidity double-screw bolt (10) in centre bore (16), described positive terminal (1), negative terminal (2) are connected by connecting pin (12) with described rigidity double-screw bolt (10) respectively; Clamp nut (4) is installed on the described rigidity double-screw bolt (10), and described brace (3) is pressed abd fixed on the clamp nut (11) by described clamp nut (4).
2. lithium-ion-power cell according to claim 1, it is characterized in that, described positive terminal (1), negative terminal (2) and rigidity double-screw bolt (10) are provided with horizontal pin-and-hole (17) with one heart, and described connecting pin (12) is arranged in the described pin-and-hole (17).
3. lithium-ion-power cell according to claim 1, it is characterized in that, also comprise positive pole ear (a) and negative lug (b), be provided with plus plate current-collecting body (14) between described positive terminal (1) and the positive pole ear (a), be provided with negative current collector (15) between described negative electrode pole (2) and the negative lug (b).
4. lithium-ion-power cell according to claim 3 is characterized in that, described positive pole ear (a) is welded on an end of plus plate current-collecting body (14), and described positive terminal (1) is welded on the other end of described plus plate current-collecting body (14); Described negative lug (b) is welded on an end of negative current collector (15), and described negative electrode pole (2) is welded on the other end of described negative current collector (15).
5. lithium-ion-power cell according to claim 1 is characterized in that, also comprises cover plate (13), and described clamp nut (11) is pressed abd fixed on described cover plate (13) on positive terminal (1) and the negative terminal (2).
6. lithium-ion-power cell according to claim 1 is characterized in that, described positive terminal (1) is made of copper, and described negative terminal (2) is made of aluminum, and described rigidity double-screw bolt (10) is made by stainless steel or high-carbon steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201439483U CN203192905U (en) | 2013-03-27 | 2013-03-27 | Lithium ion power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201439483U CN203192905U (en) | 2013-03-27 | 2013-03-27 | Lithium ion power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203192905U true CN203192905U (en) | 2013-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201439483U Expired - Lifetime CN203192905U (en) | 2013-03-27 | 2013-03-27 | Lithium ion power battery |
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| Country | Link |
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| CN (1) | CN203192905U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219488A (en) * | 2013-03-27 | 2013-07-24 | 武汉中原长江科技发展有限公司 | Lithium-ion power battery |
-
2013
- 2013-03-27 CN CN2013201439483U patent/CN203192905U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219488A (en) * | 2013-03-27 | 2013-07-24 | 武汉中原长江科技发展有限公司 | Lithium-ion power battery |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130911 |
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| CX01 | Expiry of patent term |