CN217114495U - High-capacity lithium ion battery with lithium ion battery core and pole side out - Google Patents
High-capacity lithium ion battery with lithium ion battery core and pole side out Download PDFInfo
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- CN217114495U CN217114495U CN202123426934.6U CN202123426934U CN217114495U CN 217114495 U CN217114495 U CN 217114495U CN 202123426934 U CN202123426934 U CN 202123426934U CN 217114495 U CN217114495 U CN 217114495U
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Abstract
The utility model relates to a high-capacity lithium ion battery with a lithium ion cell and a pole side out, which comprises a shell, the lithium ion cell arranged in the shell, and a positive pole column and a negative pole column which are arranged on the two side walls outside the shell relatively; the lithium ion battery cell is electrically connected with the positive pole column and the negative pole column on the outer side of the shell through the first embedded connecting strip. This application is parallelly connected through electric core unit, compress tightly, welded connection spare, the casing that will have positive negative utmost point post is connected through first the dress connecting strip that inlays with parallelly connected electric core group, realize the electricity of positive negative utmost point post and electric core and be connected, utilize the second to inlay the dress connecting strip in the battery case outside simultaneously and be connected between two adjacent battery case, realize the series connection of a plurality of batteries, it has not only saved raw and other materials, it makes the electric current change and passes through to have enlarged the connection face between the large capacity battery, second between the battery inlays the dress connecting strip and can peg graft heat transfer assembly, can carry out temperature control to the battery.
Description
Technical Field
The utility model relates to the technical field of batteries, especially, relate to a large capacity lithium ion battery that lithium ion battery cell and utmost point post incline and go out.
Background
The square battery of the maximum capacity of the lithium battery on the current market is 400Ah, the cylindrical battery of the maximum capacity is not more than 100Ah, under the background of 'carbon peak reaching' and 'carbon neutralization', the energy storage industry is expected to be greatly developed, but is influenced by the battery capacity, the lithium battery needs to be connected in series and in parallel with a plurality of batteries when the energy storage is applied, so that the connection parts are various, the connection steps are complex and cumbersome, the battery management system and wire rods, the using amount of a battery box is very large, the energy storage cost is high, and the large-capacity battery has the problems that the connection between pole waste and the battery is unreliable and the like.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a large capacity lithium ion battery that lithium ion cell and utmost point post incline out.
The technical scheme adopted by the application is as follows:
the utility model provides a lithium ion battery cell, includes at least one electric core unit and utmost point ear, utmost point ear is the U type to relative setting is in the both sides of electric core unit, and the U type opening is outside.
Further, the plurality of cell units are arranged in a vertically stacked manner and are vertically connected through connecting pieces.
Further limiting, the connecting piece is a cylinder structure with a rectangular or T-shaped section, two surfaces of the connecting piece are respectively connected with two side wings of the pole lug, and one or more C-shaped clamping grooves or dovetail grooves are formed in the outer side surface of the connecting piece, which is back to the battery cell.
A high-capacity lithium ion battery with side-out polar columns comprises a shell, the lithium ion battery core, a positive polar column and a negative polar column, wherein the lithium ion battery core is arranged in the shell, and the positive polar column and the negative polar column are oppositely arranged on two outer side walls of the shell; the lithium ion battery cell is electrically connected with the positive pole column and the negative pole column on the outer side of the shell through the first embedded connecting strip.
Further limiting, the first embedded connecting strip is arranged in a C-shaped clamping groove or a dovetail groove of the lithium ion battery cell connecting piece.
Further limit, the first embedded connecting strip is in a dumbbell-shaped structure, and one or more circular holes or groove-shaped holes which are sunken inwards are formed in the middle parts of two sides of the first embedded connecting strip.
Further, the outer edge of the first embedded connecting strip is provided with a thorn-shaped protrusion.
Further limit, be provided with the inlay groove on the lateral wall of positive post and negative pole post respectively.
Further limiting, one large-capacity lithium ion battery and the adjacent large-capacity lithium ion battery are connected in series through a second embedded connecting strip bridged in the embedded groove, and the structure of the second embedded connecting strip is the same as that of the first embedded connecting strip.
Further limiting, a heat transfer component is arranged in the circular hole or the groove-shaped hole of the second embedded connecting strip, and one end of the heat transfer component extends to the outer side of the embedded groove and is connected with the semiconductor refrigerator.
The shell is further limited to be a plastic shell, reinforcing ribs are arranged on the inner wall of the shell, the shell further comprises an upper cover and a lower cover, and the upper cover and the lower cover are respectively connected with the shell body in a sealing mode through gaskets; and the upper cover is provided with a pressure release valve.
Compared with the prior art, the beneficial effects of this application are:
1) this application is the utmost point ear design of electric core for U type structure, utilizes the connecting piece of cylinder structure to realize the range upon range of parallel connection between a plurality of utmost point ears, realizes the combination of big electric core.
2) This application is parallelly connected through electric core unit, compress tightly, welded connection spare, the casing that will have positive negative utmost point post is connected through the first dress connecting strip that inlays with parallelly connected electric core group, realize the electricity of positive negative utmost point post and electric core, utilize the second to inlay in the battery case outside simultaneously and adorn the connecting strip and connect between two adjacent battery case, realize the series connection of a plurality of batteries, it has not only saved raw and other materials, it makes the electric current change to pass through to have enlarged the connection face between the large capacity battery, the second between the battery inlays the dress connecting strip and can peg graft heat transfer unit, can carry out temperature control to the battery.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a battery cell unit 1 according to an embodiment of the present invention.
Fig. 2 is a schematic diagram illustrating parallel stacking of the cell units 1 according to an embodiment of the present invention.
Fig. 3 is a schematic view of a cell connecting member 3 according to an embodiment of the present invention.
Fig. 4 is a schematic view of a battery case according to an embodiment of the present invention.
Fig. 5 is an installation view of the lower cover 9 of the battery case 7 according to the embodiment of the present invention.
Fig. 6 is a schematic structural view of the electric core assembly of the embodiment of the present invention being placed in the casing.
Fig. 7 is a schematic view of a first embedded connecting strip 4 according to an embodiment of the present invention.
Fig. 8 is a connection diagram of the positive and negative electrodes of the outer casing 7 of the electric core assembly according to the embodiment of the present invention.
Fig. 9 is a schematic view of the upper cover 8 according to the embodiment of the present invention.
Fig. 10 is a schematic diagram of a battery according to an embodiment of the present invention.
Fig. 11 is a schematic diagram of a series connection of two batteries according to an embodiment of the present invention.
In the figure, 1-cell unit, 2-tab, 3-connecting piece, 4-first embedded connecting strip, 5-positive pole, 6-negative pole, 7-shell, 8-upper cover, 9-lower cover, 10-second embedded connecting strip, and 11-heat transfer component.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
The technical solution of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model provides a lithium ion battery cell, including at least one electric core unit 1 and utmost point ear 2, utmost point ear 2 is the U type to relative setting is in electric core unit 1's both sides, and the U type opening is outside.
A plurality of electric core units 1 are stacked up from top to bottom and are connected from top to bottom through connecting piece 3, and connecting piece 3 is the cylinder structure of rectangle or T type for the cross-section, the both sides of connecting piece 3 are connected with the both sides wing of utmost point ear 2 respectively, the lateral surface of connecting piece 3 electric core dorsad is provided with one or more C type draw-in groove or dovetail.
The lithium ion battery is characterized in that the lithium ion battery cell is packaged in the shell 7 to form a high-capacity lithium ion battery with an electrode column laterally extending out, and the high-capacity lithium ion battery with the electrode column laterally extending out has the following specific structure: the lithium ion battery cell is electrically connected with a positive pole column 5 and a negative pole column 6 on the outer side of a shell 7 through a first embedded connecting strip 4, the first embedded connecting strip 4 is arranged in a C-shaped clamping groove or a dovetail groove of a lithium ion battery cell connecting piece 3, the first embedded connecting strip 4 is of a dumbbell-shaped structure, one or more circular holes or groove-shaped holes which are sunken inwards are formed in the middle of the two sides of the first embedded connecting strip, the outer side edge of the first embedded connecting strip 4 is provided with a thorn-shaped protrusion, the outer side walls of the positive pole column 5 and the negative pole column 6 are respectively provided with embedded grooves, and a high-capacity lithium ion battery cell is connected with an adjacent high-capacity lithium ion battery cell in series through a second embedded connecting strip 10 which is bridged in the embedded grooves.
To explain further, the second flush-mounted connecting strip 10 has the same structure as the first flush-mounted connecting strip 4. A heat transfer component 11 is arranged in the circular hole or the groove-shaped hole of the second embedded connecting strip 10, and one end of the heat transfer component 11 extends to the outer side of the embedded groove and is connected with the semiconductor refrigerator. The shell 7 is a plastic shell, reinforcing ribs are arranged on the inner wall of the shell 7, the shell 7 further comprises an upper cover 8 and a lower cover 9, and the upper cover 8 and the lower cover 9 are respectively connected with the shell 7 body in a sealing mode through gaskets; and a pressure release valve is arranged on the upper cover 8.
Example 1
In the lithium ion battery of this embodiment, as shown in fig. 1, U-shaped tabs 2 are disposed on the left and right sides of a battery cell unit 1, and U-shaped openings of the tabs 2 are outward. A plurality of battery cell units 1 are stacked up and down, so that the tabs 2 on the left and right sides are aligned up and down, and the positive electrode is opposite to the positive electrode, and the negative electrode is opposite to the negative electrode, as shown in fig. 2. Then, a plurality of cell units 1 are welded and connected in parallel with the tabs 2 through the connecting pieces 3 to form a cell combination, as shown in fig. 3, the connecting pieces 3 are used for welding the positive electrodes of the cell combination together from two sides, and the negative electrodes are welded together from two sides to form a welded parallel-connection welded cell group 3.
Further, the connecting piece 3 is a cylinder structure with a rectangular cross section, two sides of the connecting piece 3 are respectively welded with two side wings of the tab 2, and a dovetail groove is formed in the outer side surface of the connecting piece 3, which is back to the battery cell.
The lithium ion battery is installed in a shell 7 of a battery, and assembled to form a high-capacity lithium ion battery with a pole side out, and the method specifically comprises the following steps:
the high-capacity lithium ion battery with the side-out pole comprises the lithium ion battery core, the embedded connecting strip, the positive pole 5, the negative pole 6 and the shell 7. The shell 7 of the embodiment comprises a cylinder body, an upper cover 8 and a lower cover 9, wherein the cylinder body is in a rectangular cylinder shape and is made of plastic materials, the melting point of the plastic cylinder body is more than 200 ℃, and polyamide, epoxy resin, polycarbonate, polyethylene terephthalate or polybutylene terephthalate are preferred. The upper and lower face of plastics barrel has the sealing washer groove, is provided with the strengthening rib on the barrel inner wall, has the screw on the strengthening rib, and upper and lower 9 inboards have convex packing ring to compress tightly stupefied, and installation relief valve on the upper cover 8 guarantees that hot gas pressure release is discharged in casing 7, annotates liquid evacuation subassembly in relief valve department installation, and the electrolyte is annotated in the evacuation, installation relief valve, formation, partial volume. As shown in fig. 9, the rubber gasket is placed in the mounting groove of the upper cover 8, the upper cover 8 is mounted on the cylinder by bolts, and the rubber ring pressing boss on the upper cover 8 presses the rubber ring, so that the upper cover 8 and the cylinder are sealed. As shown in fig. 5, the gasket is put into the gasket mounting groove of the lower cover 9, the lower cover 9 is mounted on the battery can by bolts, and the rubber ring is pressed and sealed by the silica gel ring pressing ridge protruding from the lower cover 9. Further, the two opposite side surfaces of the cylinder are provided with a positive pole column and a negative pole column 6, the positive pole column and the negative pole column 6 are arranged along the longitudinal axis of the side surface of the cylinder, and the positive pole column 5 and the negative pole column 6 are made of aluminum alloy materials and are embedded on the two side walls of the plastic cylinder through an injection molding process. The positive pole post 5 and the negative pole post 6 are both aluminum extruded parts, one side of each of which extends to the inner side of the plastic cylinder, the other side of each of which extends to the outer side of the plastic cylinder, and dovetail grooves which extend in the length direction are respectively formed along the side surfaces of the inner side and the outer side of each of which extend out of the cylinder, as shown in fig. 4. The lithium ion cell described above is placed in the battery can 5 with the lower lid 9, as shown in fig. 6. The lithium ion cell is electrically connected with the positive pole 5 and the negative pole 6 outside the shell 7 through the first embedded connecting strip 4, namely, one side of the first embedded connecting strip 4 is inserted into a dovetail groove of the connecting piece 3 of the lithium ion cell, the other side of the first embedded connecting strip 4 is inserted into dovetail grooves of the positive pole 5 and the negative pole 6 of the plastic cylinder body for clamping, and the first embedded connecting strip 4 is also made of aluminum alloy, so that the cell tab 2 can be electrically connected with the positive pole 5 and the negative pole 6, as shown in fig. 8.
Further, referring to fig. 7, the first embedded connecting strip 4 of the present embodiment is a dumbbell-shaped structure, a circular hole is formed in the middle of each side of the first embedded connecting strip, and the outer edge of the first embedded connecting strip 4 has a thorn-shaped protrusion, which can be deformed when being pressed, so that the connection contact is tighter.
Further, a plurality of high-capacity lithium ion batteries arranged at the side of the pole in the embodiment can be connected in series, that is, one high-capacity lithium ion battery and an adjacent high-capacity lithium ion battery are connected in series through the second embedded connecting strip 10 bridged in the embedded groove. The second flush-mounting connecting strip 10 has the same structure as the first flush-mounting connecting strip 4. And a heat transfer component 11 is arranged in the circular hole of the second embedded connecting strip 10, namely the heat transfer component 11 formed by combining a heat pipe and a heating sheet is inserted into the circular hole of the second embedded connecting strip to carry out soaking heat transfer on the battery, and the upper end of the heat pipe extends to the outer side of the embedded groove of the second embedded connecting strip 10 and is connected with the semiconductor refrigerator.
As shown in fig. 10, reference numeral 10 denotes a second flush-mounted connecting strip.
As shown in FIG. 11, the positive electrode of two batteries is arranged opposite to the negative electrode, the two batteries are connected by the second embedded connecting strip 10 to form a series battery pack 11, a heat pipe is inserted in the circular hole, and the heat pipe extends out from the upper part and can be cooled and heated by a semiconductor refrigerator.
Example 2
The present embodiment is different from embodiment 1 in that: the connecting piece 3 connected with the battery cell in parallel is of a T-shaped cylindrical structure, the horizontal plate of the connecting piece 3 is respectively connected with the two side wings of the lug 2 in a welding manner, and the outer side surface of the middle vertical plate of the connecting piece 3 is provided with a C-shaped clamping groove.
The lithium ion battery is characterized in that the lithium ion battery cell is installed in a shell 7 of the battery and assembled to form a high-capacity lithium ion battery with a pole side, a positive pole 5 and a negative pole 6 of the battery are made of aluminum alloy materials and are embedded on two side walls of a plastic cylinder body through an injection molding process. One side of the positive pole 5 and one side of the negative pole 6 extend to the inner side of the plastic barrel respectively, one side of the positive pole extends to the outer side of the plastic barrel respectively, and the inner side and the outer side part extending out of the barrel are respectively provided with a C-shaped clamping groove extending in the length direction along the side surface. One side of the first embedded connecting strip 4 is inserted into a C-shaped clamping groove of a connecting piece of the lithium ion battery cell, the other side of the first embedded connecting strip 4 is inserted into C-shaped clamping grooves of a positive pole post 5 and a negative pole post 6 of the plastic cylinder body to be clamped, the first embedded connecting strip 4 is also made of aluminum alloy, and the battery cell tab 2 is electrically connected with the positive pole post 5 and the negative pole post 6.
Further, the first embedded connecting strip 4 of the present embodiment is a dumbbell-shaped structure, the middle portions of both sides of the first embedded connecting strip are provided with groove-shaped holes which are recessed inwards, and the outer edge of the first embedded connecting strip 4 is provided with thorn-shaped protrusions which can be deformed when being pressed, so that the connection contact is tighter. One large-capacity lithium ion battery and the adjacent large-capacity lithium ion battery are connected in series through a second embedded connecting strip 10 bridged in the embedded groove. The second flush-mounting connecting strip 10 has the same structure as the first flush-mounting connecting strip 4. And a heat transfer component 11 is arranged in the groove-shaped hole of the second embedded connecting strip 10, namely, the heat transfer component 11 formed by combining the soaking bar and the heating sheet is inserted in the groove-shaped hole to carry out soaking heat transfer on the battery, and the upper end of the soaking bar extends to the outer side of the embedded groove of the second embedded connecting strip 10 and is connected with the semiconductor refrigerator.
The other components and the connection method thereof are the same as those in embodiment 1.
While embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments. It can be applicable to various and be fit for the utility model discloses a field completely. Additional modifications will readily occur to those skilled in the art. The invention is therefore not to be limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.
Claims (9)
1. The utility model provides a lithium ion battery cell, includes at least one electric core unit (1) and utmost point ear (2), its characterized in that, utmost point ear (2) are the U type to relative setting is in the both sides of electric core unit (1), and the U type opening is outside, a plurality of electric core units (1) range upon range of setting from top to bottom to connect from top to bottom through connecting piece (3), connecting piece (3) are the cylinder structure of rectangle or T type for the cross-section, the two sides of connecting piece (3) are connected with the both sides wing of utmost point ear (2) respectively, the lateral surface of connecting piece (3) electric core dorsad is provided with one or more C type draw-in groove or dovetail.
2. A high-capacity lithium ion battery with side-out terminal posts is characterized by comprising a shell (7), a lithium ion battery cell according to claim 1 arranged in the shell (7), and a positive terminal post (5) and a negative terminal post (6) which are oppositely arranged on the two outer side walls of the shell (7); the lithium ion battery cell is electrically connected with a positive pole post (5) and a negative pole post (6) on the outer side of the shell (7) through a first embedded connecting strip (4).
3. The high-capacity lithium ion battery with the pole side out according to claim 2, wherein the first embedded connecting strip (4) is arranged in a C-shaped clamping groove or a dovetail groove of the lithium ion cell connecting piece (3).
4. The high-capacity lithium ion battery with the pole side out according to claim 3, wherein the first embedded connecting strip (4) is in a dumbbell-shaped structure, and one or more circular holes or groove-shaped holes which are sunken inwards are formed in the middle parts of two sides of the first embedded connecting strip.
5. The high-capacity lithium ion battery with the pole side out according to claim 4, wherein the outer edge of the first embedded connecting bar (4) is provided with a thorn-shaped protrusion.
6. The high-capacity lithium ion battery with the pole side out according to claim 5, wherein the outer side walls of the positive pole (5) and the negative pole (6) are respectively provided with an embedded groove.
7. The high-capacity lithium ion battery with the pole side out according to claim 6, characterized in that one high-capacity lithium ion battery and the adjacent high-capacity lithium ion battery are connected in series through a second embedded connecting strip (10) bridged in the embedded groove, and the structure of the second embedded connecting strip (10) is the same as that of the first embedded connecting strip (4).
8. The lithium ion battery with the large capacity and the lateral pole outlet according to claim 7, wherein the second embedded connecting strip (10) is provided with a heat transfer component (11) in a circular hole or a groove-shaped hole, and one end of the heat transfer component (11) extends to the outer side of the embedded groove and is connected with a semiconductor refrigerator.
9. The high-capacity lithium ion battery with the pole side out according to claim 2, wherein the housing (7) is a plastic housing, reinforcing ribs are arranged on the inner wall of the housing (7), the housing (7) further comprises an upper cover (8) and a lower cover (9), and the upper cover (8) and the lower cover (9) are respectively connected with the housing (7) body in a sealing manner through gaskets; and a pressure release valve is arranged on the upper cover (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123426934.6U CN217114495U (en) | 2021-12-31 | 2021-12-31 | High-capacity lithium ion battery with lithium ion battery core and pole side out |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123426934.6U CN217114495U (en) | 2021-12-31 | 2021-12-31 | High-capacity lithium ion battery with lithium ion battery core and pole side out |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217114495U true CN217114495U (en) | 2022-08-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123426934.6U Active CN217114495U (en) | 2021-12-31 | 2021-12-31 | High-capacity lithium ion battery with lithium ion battery core and pole side out |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217114495U (en) |
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2021
- 2021-12-31 CN CN202123426934.6U patent/CN217114495U/en active Active
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