CN213584088U - Lithium ion storage battery - Google Patents
Lithium ion storage battery Download PDFInfo
- Publication number
- CN213584088U CN213584088U CN202022483812.XU CN202022483812U CN213584088U CN 213584088 U CN213584088 U CN 213584088U CN 202022483812 U CN202022483812 U CN 202022483812U CN 213584088 U CN213584088 U CN 213584088U
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- electrode
- lithium ion
- battery
- pole
- ion battery
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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
Abstract
The utility model discloses a lithium ion storage battery, which comprises a battery pack and electrode terminals, wherein the electrode terminals are arranged at the head end and the tail end of the battery pack; the electrode terminal comprises an electrode plate and a conducting strip for supplying power to the outside, and the positive electrode and the negative electrode of the battery pack are electrically connected with the electrode plate through the conducting strip respectively; the battery pack comprises a plurality of battery cell units and pole lug pieces, wherein the positive pole and the negative pole of each battery cell unit are connected with the pole lug pieces, and the adjacent battery cell units are connected in series through the pole lug pieces. Adopt the utility model discloses, simple structure, electrode terminal convenient to use, and satisfy current lithium ion battery demand of discharging, space utilization is high.
Description
Technical Field
The utility model relates to a technical field of lithium ion battery especially relates to a lithium ion battery.
Background
The emergency starting power supply of the lithium ion storage battery is a novel product in recent years, is light in weight and small in size, can be used for emergency starting of an automobile, can supply power for various electronic products, and is relatively powerful and practical in lighting function. With the vigorous development potential of the electric automobile market, a lithium ion storage battery with large starting current and high power is needed, so that the discharge multiplying power of the lithium ion storage battery is continuously improved.
At present, after electric cores are connected in series and parallel for assembly, both ends of a positive electrode and a negative electrode are led out by adopting a lead, and the method is a conventional leading-out method of the conventional lithium ion storage battery. The method has the disadvantages that with the improvement of the discharge rate of the lithium ion storage battery, the conventional lead cannot bear current, a lead with a larger cross section area is needed to bear the current, and the increase of the diameter of the lead brings about the following defects; secondly, after the wire diameter of the wire is increased, the wire is thick and hard, so that the packaging difficulty is increased, and the production efficiency is influenced; thirdly, after the wire diameter of the conducting wire is increased, a larger space needs to be occupied, and the space utilization is not facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a lithium ion battery is provided, simple structure, electrode terminal convenient to use, and satisfy current lithium ion battery demand of discharging, space utilization is high.
In order to solve the technical problem, the utility model provides a lithium ion storage battery, which comprises a battery pack and electrode terminals, wherein the electrode terminals are arranged at the head end and the tail end of the battery pack;
the electrode terminal comprises an electrode plate and a conducting strip for supplying power to the outside, and the positive electrode and the negative electrode of the battery pack are electrically connected with the electrode plate through the conducting strip respectively;
the battery pack comprises a plurality of battery cell units and pole lug pieces, wherein the positive pole and the negative pole of each battery cell unit are connected with the pole lug pieces, and the adjacent battery cell units are connected in series through the pole lug pieces.
As an improvement of the scheme, one end of the electrode plate is electrically connected with the conducting plate, and the other end of the electrode plate is provided with a connecting hole for electrically connecting an external circuit.
As an improvement of the scheme, the two pole lugs which are connected with each other are welded in an overlapped mode.
As an improvement of the scheme, the pole lug piece and the conducting piece are made of copper or copper-plated conducting materials.
As an improvement of the scheme, the thickness of the pole lug piece is 0.1-0.5 mm.
As an improvement of the scheme, the surface of the electrode plate is plated with copper or nickel.
As an improvement of the scheme, the electrode plate is in a straight line shape or a Z shape.
As an improvement of the scheme, the thickness of the electrode plate is 0.8-3.5 mm.
As an improvement of the scheme, the thickness of the conducting strip is 1-4 mm.
As an improvement of the scheme, the electrode plate and the conducting strip are of an integrated structure. Implement the utility model discloses, following beneficial effect has:
the utility model discloses a lithium ion storage battery, which has simple structure and convenient use; compared with a conventional lead, the electrode plate is high in bearing capacity. And the electrode plates, the conducting strips and the pole lug pieces can be connected in an ultrasonic or laser welding mode, so that the technical treatment of tin soldering is avoided, the manual welding difficulty is reduced, and the production efficiency is higher.
And because the lead is not needed, the problem that the lug is influenced by the high temperature of tin soldering for a long time can be avoided, thereby avoiding the damage of the battery cell due to the high temperature and avoiding the packaging difficulty caused by the overlarge wire diameter of the lead.
Drawings
Fig. 1 is a schematic structural diagram of a lithium ion battery according to the present invention;
fig. 2 is a schematic structural view of another angle of the lithium ion battery of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, the utility model provides a lithium ion battery, which comprises a battery pack 1 and electrode terminals 2, wherein the electrode terminals 2 are arranged at the head end and the tail end of the battery pack 1;
the electrode terminal 2 comprises an electrode plate 21 and a conducting plate 22 for supplying power to the outside, and the positive electrode and the negative electrode of the battery pack 1 are electrically connected with the electrode plate 21 through the conducting plate 22;
the battery pack 1 comprises a plurality of battery cell units 11 and pole lug pieces 12, wherein the positive pole and the negative pole of each battery cell unit 11 are connected with the pole lug pieces 12, and the battery cell units 11 are adjacent to each other and are connected in series through the pole lug pieces 12.
Specifically, in order to facilitate the electrical connection of the external circuit, one end of the electrode plate 21 is electrically connected to the conductive plate 22, and the other end thereof is opened with a connection hole 211 for the connection of the external circuit.
The overlapping welds between the interconnected pole tabs 12 increase the bond area of the weld between the pole tabs 12. Thereby enhancing the stability of the electrical connection between the adjacent two cell units 11.
Moreover, the sheet-shaped design of the pole ear piece 12 and the conducting strip 22 is beneficial to bending so as to be attached to the surface of the battery cell unit as tightly as possible, thereby reducing the overall size of the battery pack and being beneficial to packaging.
The pole ear piece 12 and the conducting strip 22 are made of copper or copper-plated conducting material, so that the pole ear piece 12 and the conducting strip 22 can be suitable for ultrasonic welding to avoid the influence of temperature on the battery core.
To ensure the bending requirements and the conductive requirements of the pole tabs 12 and conductive sheets 22, the thickness of the pole tabs 12 is 0.1-0.5 mm. The thickness of the conductive sheet 22 is 1-4 mm. Accordingly, the width of the pole tabs 12 and conductive sheets 22 may be increased as needed for actual overload.
Since the electrode plate 21 needs to be connected with an external circuit, the conductive plate may be made of a high-strength conductive material, and the conductive plate 22 may be plated with copper or nickel by ultrasonic welding in order to meet the requirement of welding between the electrode plate 21 and the conductive plate 22. Preferably, the thickness of the electrode sheet 21 is 0.8 to 3.5 mm. The conductive sheet 22 is in a straight or Z shape.
Preferably, the electrode sheet 21 and the conductive sheet 22 are of an integrated structure.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (10)
1. The lithium ion storage battery is characterized by comprising a battery pack and electrode terminals, wherein the electrode terminals are arranged at the head end and the tail end of the battery pack;
the electrode terminal comprises an electrode plate and a conducting strip for supplying power to the outside, and the positive electrode and the negative electrode of the battery pack are electrically connected with the electrode plate through the conducting strip respectively;
the battery pack comprises a plurality of battery cell units and pole lug pieces, wherein the positive pole and the negative pole of each battery cell unit are connected with the pole lug pieces, and the adjacent battery cell units are connected in series through the pole lug pieces.
2. The lithium ion battery according to claim 1, wherein one end of the electrode tab is electrically connected to the conductive tab, and the other end thereof is provided with a connection hole for electrically connecting an external circuit.
3. The lithium ion battery of claim 1, wherein the interconnected bipolar tabs are welded together.
4. The lithium ion battery of claim 1, wherein the pole tabs and conductive sheets are made of copper or copper-plated conductive material.
5. The lithium ion battery of claim 4, wherein the thickness of the pole tab is 0.1-0.5 mm.
6. The lithium ion battery of claim 1, wherein the surface of the electrode tabs is plated with copper or nickel.
7. The lithium ion battery of claim 1, wherein the electrode tabs are in-line or Z-shape.
8. The lithium ion battery according to claim 1 or 7, wherein the electrode tabs have a thickness of 0.8 to 3.5 mm.
9. The lithium ion battery of claim 1, wherein the conductive sheet has a thickness of 1-4 mm.
10. The lithium ion battery of claim 1, wherein the electrode tabs and the conductive tabs are of a unitary structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022483812.XU CN213584088U (en) | 2020-10-30 | 2020-10-30 | Lithium ion storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022483812.XU CN213584088U (en) | 2020-10-30 | 2020-10-30 | Lithium ion storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213584088U true CN213584088U (en) | 2021-06-29 |
Family
ID=76533754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022483812.XU Active CN213584088U (en) | 2020-10-30 | 2020-10-30 | Lithium ion storage battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213584088U (en) |
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2020
- 2020-10-30 CN CN202022483812.XU patent/CN213584088U/en active Active
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