CN212461883U - Lithium ion battery module and output terminal - Google Patents
Lithium ion battery module and output terminal Download PDFInfo
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- CN212461883U CN212461883U CN202021264064.XU CN202021264064U CN212461883U CN 212461883 U CN212461883 U CN 212461883U CN 202021264064 U CN202021264064 U CN 202021264064U CN 212461883 U CN212461883 U CN 212461883U
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- output terminal
- lithium ion
- connecting end
- ion battery
- battery module
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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 relates to a lithium ion battery field discloses a lithium ion battery module and output terminal. The output terminal includes: the integrated electric conductor is made of a conductive material, a first connecting end and a second connecting end which are respectively used for connecting a power supply and external equipment are arranged on the electric conductor, the outward conductive connecting surfaces on the first connecting end and the second connecting end are exposed surfaces of the conductive material, and an insulating material layer is coated on the surfaces of other parts on the electric conductor. By adopting the technical scheme of the embodiment, the installation of the output terminal of the lithium ion battery module is simplified, the difficulty of the assembly process is reduced, the number of parts is reduced, the integration level of the product is improved, and the product cost is reduced.
Description
Technical Field
The utility model relates to a lithium ion battery field discloses a lithium ion battery module and output terminal.
Background
With the development of new energy industry, lithium ion batteries have been used in different fields, and the application environments are various, for example: passenger cars, bus cars, sanitation cars, energy storage power stations, and the like.
With the development of new energy electric vehicles, new energy vehicles face more and more challenges, and both cost and safety become key restriction factors for the development of new energy vehicles. The high cost and the complex process limit the factors of the complete marketization of the new energy automobile. Electric core, module, PACK are as new energy automobile's core spare part, in order to accelerate new energy automobile can be quick marketization, and the continuous innovation of electric core, module, PACK reduces the production technology degree of difficulty, will accelerate new energy's marketization to a great extent.
The existing lithium ion battery module has the defects of complex assembly process, more parts and higher cost of the module.
Disclosure of Invention
An object of the embodiment of the utility model is to provide a lithium ion battery module and output terminal, adopt this embodiment technical scheme, be favorable to simplifying the output terminal's of lithium ion battery module installation, reduce the assembly process degree of difficulty, reduce the integrated level that spare part quantity improves the product, reduce product cost.
In a first aspect, an embodiment of the present invention provides an output terminal, including: the integrated electric conductor is made of a conductive material, a first connecting end and a second connecting end which are respectively used for connecting a power supply and external equipment are arranged on the electric conductor, the outward conductive connecting surfaces on the first connecting end and the second connecting end are exposed surfaces of the conductive material, and an insulating material layer is coated on the surfaces of other parts on the electric conductor.
Optionally, the electrical conductor is a metal conductor.
Optionally, the first connection end and/or the first connection end is in a sheet shape, one surface of the first connection end and/or the first connection end is a welding surface, and the welding surface is a conductive material exposed surface.
Optionally, a bolt conductively connected with the conductor is arranged on the second connecting end, a conductive material of the bolt is exposed outside, and the bolt is used for externally connecting the electrode terminal.
Optionally, the bolt and the conductor are of an integral structure.
Optionally, a non-penetrating hole is formed in the second connection end of the conductor, an inner surface of the hole is a conductive material exposed surface, and the bolt is riveted in the hole.
Optionally, a bending body is arranged between the first connecting end and the second connecting end, and the first connecting end and the second connecting end are on different horizontal planes.
Optionally, an excavation avoiding portion is further disposed between the first connecting end and the second connecting end.
In a second aspect, an embodiment of the present invention provides a lithium ion battery module, which includes:
a lithium ion battery module body, a plurality of stacked battery cells, the battery cells are connected in series and parallel to form the lithium ion battery module body,
a housing enclosed outside the lithium ion battery pack body,
the output terminal is mounted on the housing, the insulating layer on the surface of the output terminal is attached to the housing, the first connection end of the output terminal extends into the housing, the exposed surface of the conductive material on the first connection end is connected with the electrode of the lithium ion battery pack body, the second connection end of the output terminal is located outside the housing, and the exposed surface of the metal on the second connection end is used for contacting with an external power supply connecting piece.
Optionally, the casing includes a metal end plate located at an electrode leading-out end of the lithium ion battery module body, the electrode leading-out end of the lithium ion battery module body is an electrode extending end of the battery core, the output terminal is disposed on the metal end plate, and an insulating layer on the surface of the output terminal is attached to the metal end plate
It can be seen from above that, adopt this embodiment technical scheme, can insert the spread groove of another pencil board through the extension of a pencil board of separation and realize the concatenation of two pencil boards and make up into pencil board combination, for the pencil board structure of prior art integration, this embodiment scheme more can the various application scene's of adaptation battery module demand, and its assembly is more nimble, is favorable to avoiding improving the application universality of raw and other materials, reduction in production cost, improves production efficiency.
Drawings
Fig. 1 is a schematic view of an assembly structure of an output terminal on a lithium ion battery module according to embodiment 1 of the present invention;
fig. 2 is a schematic view of an output terminal according to an embodiment 1 of the present invention;
fig. 3 is a schematic view of another structure of the output terminal according to embodiment 1 of the present invention;
reference numerals:
1: an end plate; 2: a side plate; 3: a cover plate; 4: an output terminal;
41: a first connection end; 42: a second connection end; 43: a bolt; 44: and hollowing out the avoiding part.
Detailed Description
The invention will be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and descriptions are provided to explain the invention, but not to limit the invention.
Example 1:
see fig. 1-3.
The present embodiment provides an output terminal 4, and the output terminal 4 is suitable for being used as an external electrode terminal of a power supply to output power externally or introduce external current to charge the power supply, such as but not limited to being particularly suitable for a lithium ion battery module.
The main part of lithium ion battery module is lithium ion battery module body, and lithium ion battery module body comprises two at least electric cores of piling together, when piling up, according to the series connection and the parallelly connected electric connection relation of two adjacent electric cores, arranges the electrode of electric core, for example when two electric cores are parallelly connected in parallel, makes the like nature electrode of two electric cores be located to arrange in same row, when two electric cores are established ties mutually, makes the first electrode of an electric core arrange in same row with the second electrode of another electric core, arranges in order according to this. When stacking, the cells are stacked with the largest area faces oppositely, wherein when stacking, any two adjacent cells may be spaced with a spacer therebetween, or may be but not limited to be abutted face to face.
The electrodes of the electric cores extend out of the end part of the lithium ion battery module body, the electric cores are connected in series and in parallel to form a battery pack according to a preset series-parallel connection relation, and the electrodes of the battery pack are used as the electrodes of the lithium ion battery module body. The end where the electrode of the lithium ion battery module body is located (i.e., the electrode extending end of the battery cell) and the opposite end of the end are respectively marked as the left end and the right end of the lithium ion battery module body. When the lithium ion battery module body is applied, the front end part and the rear end part of the lithium ion battery module body (the maximum surface of the electric core of the two electric cores at the outermost side) are main expansion surfaces, the front end part and the rear end part of the lithium ion battery module body are covered with the front side plate and the rear side plate 2 respectively, the left end part and the right end part of the lithium ion battery module body are covered with the end plate 1 respectively, and the front edge and the rear edge of the end plate 1 are connected with the front side plate and the rear side plate 2 respectively so as to. In practical applications, the front and rear end plates 1 and the front and rear side plates 2 are generally made of metal plates in order to increase the rigidity of the housing. The upper cover plate 3 and the lower cover plate 3 are respectively covered on the top surface and the bottom surface of the lithium ion battery module body, so that the front edge and the rear edge of the upper cover plate 3 are connected and locked with the front side plate 2 and the rear side plate 2, and the upper cover plate 3 and the lower cover plate can be made of metal plates or can be made of but not limited to plastic plates and other insulating plates. The lithium ion battery module body is encapsulated by a shell consisting of an upper cover plate 3, a lower cover plate 3, a front side plate 2, a rear side plate 2 and a left end plate 1 to form an integral lithium ion battery module.
The present embodiment provides an electrode output terminal 4 applicable to a lithium ion battery module, for leading out an electrode of a lithium ion battery module body to a housing to serve as an external output terminal 4 of the lithium ion battery module.
The main body of the output terminal 4 of the present embodiment is an integrated conductor made of a conductive material, and the metal material may be, but is not limited to, a conductive material with high conductivity and good heat dissipation, such as, but not limited to, copper.
The conductor is provided with a first connection end 41 and a second connection end 42, wherein the first connection end 41 is used for electrically connecting with an electrode of the lithium ion battery module body, and the connection mode can be, but is not limited to, laser welding or thermal bonding or other connection modes. The second connection end 42 is disposed outside the end plate 1 and is used for externally connecting an external device, which may be a power-consuming device or an external power source. In the embodiment, the first connection terminal 41 and the second connection terminal 42 are respectively provided with a conductive connection surface on which a conductive material is exposed. The conductor is coated with a layer of insulating material on the conductor except for the conductive connection surfaces at the first and second connection terminals 41, 42, which completely covers the conductor thereunder.
Thus, during assembly, the first connection end 41 of the output terminal 4 extends into the housing from a gap between the end plate 1 and the upper cover plate 3 (or the lower cover plate 3), the exposed surface of the conductive material of the first connection end 41 is in face-to-face contact connection with the electrode surface of the lithium ion battery module body, the electrode of the lithium ion battery module body is guided onto the output terminal 4, the second connection end 42 of the output terminal 4 is positioned outside the housing (generally but not limited to being fixed on the end plate 1), and when an electrical device or an external power supply is connected, the external electrode end (such as but not limited to being a power line or a copper bar or an aluminum bar) is externally connected to the exposed surface of the conductive material of the second connection end 42, namely, the connection with the external electrical device or the external power supply is realized.
As can be seen from the above, with the output terminal 4 of this embodiment, except for the conductive connection surfaces on the first connection end 41 and the second connection end 42, other portions of the conductor are coated with an insulating material layer, which completely covers the conductor thereunder, so that the output terminal 4 can be mounted in close contact with the housing (specifically, the end plate 1) without mounting an insulating connection seat on the end plate 1 first, then mounting the output terminal 4 made of a conductive material on the insulating connection seat, and further disposing an output protection cover on the output terminal 4. By adopting the technical scheme of the embodiment, the installation of the output terminal 4 of the lithium ion battery module is simplified, the difficulty of the assembly process is reduced, the number of parts is reduced, the integration level of the product is improved, and the product cost is reduced.
As an illustration of the present embodiment, a non-penetrating hole portion is provided on the second connection end 42 of the output terminal 4, an inner surface of the hole portion is a conductive material exposed surface, a bolt 43 may be riveted into the hole portion by means of caulking (or, without limitation, the bolt 43 and the output terminal 4 may be designed to be an integrated structure), the bolt 43 is used as a connection terminal connected to an external power supply connector, an external electrode end is locked to the bolt 43 by a nut, that is, the external connection is realized, at this time, the surface of the bolt 43 is a metal exposed surface, and then an insulating nut cap is covered on the locking nut. In order to further increase the contact area with the external electrode terminal, a certain area of the outer periphery of the bolt 43 is provided with a conductive material exposed surface, so that the locked external electrode terminal is closely attached to the metal material exposed surface of the second connection terminal 42, thereby increasing the contact strength and the contact area.
Referring to fig. 3, in the output terminal 4 of the present embodiment, the B1 surface is a conductive material exposed surface of the first connection end 41 for connecting the electrodes of the battery module body, the C11 area on the C1 surface is a conductive material exposed surface of the second connection end 42 for connecting the power connection terminal of the external device, and the surfaces of the B1 and the C11 are both connected without insulation protection. Other regions of the output terminal 4 (such as regions outside the region C11 on the surfaces a1, a2 and C1 outside the housing in the figure) are coated with high-density insulating material layers for protection by insulating materials, so that the output terminal 4 is ensured to be insulated from surrounding metal parts, and the output electrode base is not required to be added between the output terminal 4 and the end plate 1 for insulation between the output electrode and the end plate 1.
As an illustration of the present embodiment, the output terminal 4 of the present embodiment can be formed by, but not limited to, a metal sheet by stamping, cutting and bending. The first connecting end 41 and the second connecting end 42 are connected through a bending body between the first connecting end and the second connecting end, the first connecting end and the second connecting end are not on the same horizontal plane, the first connecting piece horizontally extends into the lower part of the lower cover plate 3 to be connected with an electrode of the lithium ion battery module body, and the bending body bends downwards to be vertical against the end part of the module body and then horizontally bends outwards to horizontally bend so that the second connecting end 42 is horizontally arranged at the top of the end plate 1 and is tightly fixed at the top end of the end plate 1.
As an illustration of the present embodiment, a hollow relief portion 44 is further provided between the first connection end 41 and the second connection end 42 to facilitate the clamping of the output terminal 4 and provide an operation relief space for the connection of the external connection terminal.
As an illustration of the present embodiment, at least one surface of the first connection end 41, one of the first connection ends 41, or both of them in the present embodiment is a soldering surface, and the soldering surface is a exposed surface of a conductive material for external connection.
The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.
Claims (10)
1. An output terminal, comprising: the integrated electric conductor is made of a conductive material, a first connecting end and a second connecting end which are respectively used for connecting a power supply and external equipment are arranged on the electric conductor, the outward conductive connecting surfaces on the first connecting end and the second connecting end are exposed surfaces of the conductive material, and an insulating material layer is coated on the surfaces of other parts on the electric conductor.
2. The output terminal according to claim 1,
the conductor is a metal conductor.
3. The output terminal according to claim 1,
the first connecting end and/or the first connecting end are/is in a sheet shape, one surface of the first connecting end and/or the first connecting end is a welding surface, and the welding surface is a conductive material exposed surface.
4. The output terminal according to claim 1,
and the second connecting end is provided with a bolt in conductive connection with the conductor, the conductive material of the bolt is exposed outside, and the bolt is used for externally connecting an electrode terminal.
5. The output terminal according to claim 4,
the bolt and the conductor are of an integrated structure.
6. The output terminal according to claim 4,
the second connecting end of the conductor is provided with a non-penetrating hole part, the inner surface of the hole part is a conductive material exposed surface, and the bolt is riveted in the hole part.
7. The output terminal according to claim 1,
the bending body is arranged between the first connecting end and the second connecting end, and the first connecting end and the second connecting end are on different horizontal planes.
8. The output terminal according to claim 1,
and a hollow avoiding part is also arranged between the first connecting end and the second connecting end.
9. A lithium ion battery module, comprising:
a lithium ion battery module body, a plurality of stacked battery cells, the battery cells are connected in series and parallel to form the lithium ion battery module body,
a housing enclosed outside the lithium ion battery pack body,
the output terminal of any one of claims 1 to 8, mounted on the housing, wherein the insulating layer on the surface of the output terminal is attached to the housing, the first connection end of the output terminal extends into the housing, the exposed surface of the conductive material on the first connection end is connected to the electrode of the lithium ion battery pack body, the second connection end of the output terminal is located outside the housing, and the exposed surface of the metal on the second connection end is used for contacting with an external power supply connector.
10. The lithium ion battery module of claim 9,
the shell comprises a metal end plate positioned at an electrode leading-out end of the lithium ion battery module body, the electrode leading-out end of the lithium ion battery module body is an electrode extending end of the battery core, the output terminal is arranged on the metal end plate, and an insulating layer on the surface of the output terminal is attached to the metal end plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021264064.XU CN212461883U (en) | 2020-07-01 | 2020-07-01 | Lithium ion battery module and output terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021264064.XU CN212461883U (en) | 2020-07-01 | 2020-07-01 | Lithium ion battery module and output terminal |
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| Publication Number | Publication Date |
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| CN212461883U true CN212461883U (en) | 2021-02-02 |
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| CN202021264064.XU Active CN212461883U (en) | 2020-07-01 | 2020-07-01 | Lithium ion battery module and output terminal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115295974A (en) * | 2022-10-08 | 2022-11-04 | 江苏湖西能源科技有限公司 | Battery package electrode overlap joint structure |
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2020
- 2020-07-01 CN CN202021264064.XU patent/CN212461883U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115295974A (en) * | 2022-10-08 | 2022-11-04 | 江苏湖西能源科技有限公司 | Battery package electrode overlap joint structure |
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