CN221282179U - Rechargeable lithium battery capable of being automatically produced - Google Patents
Rechargeable lithium battery capable of being automatically produced Download PDFInfo
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- CN221282179U CN221282179U CN202323117360.3U CN202323117360U CN221282179U CN 221282179 U CN221282179 U CN 221282179U CN 202323117360 U CN202323117360 U CN 202323117360U CN 221282179 U CN221282179 U CN 221282179U
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- battery
- anode
- lithium battery
- rechargeable lithium
- charge
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 21
- RVCKCEDKBVEEHL-UHFFFAOYSA-N 2,3,4,5,6-pentachlorobenzyl alcohol Chemical compound OCC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RVCKCEDKBVEEHL-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 claims abstract description 18
- 239000003792 electrolyte Substances 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 33
- 239000010959 steel Substances 0.000 claims description 33
- 238000007789 sealing Methods 0.000 claims description 17
- 238000005096 rolling process Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 abstract description 8
- 238000004146 energy storage Methods 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 12
- 238000004804 winding Methods 0.000 description 7
- 238000001746 injection moulding Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000005574 cross-species transmission Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Abstract
The utility model discloses a rechargeable lithium battery capable of being automatically produced, and belongs to the field of new energy storage and application. Including electrically conductive casing, electric core, charge-discharge control module, be provided with first holding tank, second holding tank in the electrically conductive casing, first holding tank sets up in the top of second holding tank, charge-discharge control module sets up in first holding tank, the electric core sets up in the second holding tank. The utility model has the advantages that compared with the prior art: firstly, the PCBA plate, the positive electrode cap, the positive electrode post and the negative electrode spring sheet are taken as a modularized whole to realize the assembly with the shell, so that the assembly efficiency can be improved; secondly, the battery cell is firstly filled into the shell, then electrolyte is injected, and then the battery cell is matched with the charge-discharge control module to realize formation, so that the assembly and production integration of the battery cell can be realized, and the automatic production of the battery can be realized.
Description
Technical Field
The utility model belongs to the technical field of new energy storage and application, and particularly relates to a rechargeable lithium battery capable of being automatically produced.
Background
The existing energy storage battery is generally assembled by adopting a battery core, a BMS protection plate and a structural support piece, wherein the manufacturing process of the battery core is complex and generally comprises the working procedures of batching, coating, roller pair, slitting, sheet making, winding, shell entering, top side sealing (soft package), liquid injection, pre-sealing, formation, secondary sealing, shaping and the like; the battery assembly includes: the PCBA is provided with the plastic shell, the anode cap is welded, the battery core is welded, the steel shell is arranged, the adhesive is dispensed, the lamination and other working procedures are performed, the angles of the production working procedures of the battery core and the battery PACK are high, the production cost is high, and the quality cannot be completely controlled. And the production of the battery core and the assembly of the battery are two independent processes, the battery core is required to be manufactured firstly, and then the battery core is used as an independent component to be assembled into the battery, so that the automatic production of the battery cannot be realized.
Disclosure of utility model
In order to solve the problems, the utility model aims to provide a rechargeable lithium battery capable of being automatically produced, which has simple production process, can realize automatic production and saves production cost.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the utility model provides a rechargeable lithium battery capable of being automatically produced, which comprises a conductive shell, a battery cell and a charge and discharge control module, wherein a first accommodating groove and a second accommodating groove are formed in the conductive shell, the first accommodating groove is formed above the second accommodating groove, the charge and discharge control module is arranged in the first accommodating groove, and the battery cell is arranged in the second accommodating groove.
Further, the charge-discharge control module comprises a module main body, a PCBA plate, an anode cap, an anode post and a cathode spring plate, wherein the PCBA plate and the anode post are arranged in the module main body, the bottom of the anode cap is arranged in the module main body and is electrically connected with the PCBA plate, the top of the anode cap protrudes out of the module main body, one end of the cathode spring plate is arranged in the module main body and is electrically connected with the PCBA plate, the other end of the cathode spring plate protrudes out of the module main body and is electrically connected with the conductive shell, an anode tab is arranged in the battery cell and is electrically connected with one end of the anode post, the anode tab is connected with the bottom of the conductive shell, and one end of the anode post, far away from the anode tab, is connected with the PCBA plate. Compared with the traditional production process, the PCBA, the positive electrode cap, the positive electrode post and the negative electrode spring plate with the protection circuit and the charge and discharge management circuit are placed into a mold to be injection molded with plastic materials, and the PCBA, the positive electrode cap, the positive electrode post and the negative electrode spring plate are fixed on a module main body molded by the plastic materials, so that the PCBA board, the positive electrode cap, the positive electrode post and the negative electrode spring plate are integrally assembled with the conductive shell, and the assembly process can be simplified.
Further, a Type-c interface is arranged on the PCBA board, and an avoidance hole corresponding to the Type-c interface is arranged on the module main body. In the application, after the battery is assembled, the conductive steel shell is used as the negative electrode of the battery cell, the Type-c interface is used as the positive electrode of the battery cell, and the battery cell is subjected to a formation process.
Further, be provided with round sealed reservation groove on the lateral surface of module main part, be provided with the sealing washer on the sealed reservation groove, the sealing washer centre gripping be in the module main part with between the electrically conductive casing, can realize the sealing of electric core, avoid electrolyte to spill over.
Further, the outside of module main part still is provided with the location indent, be provided with the convex location boss of inboard on the conductive shell, the location boss joint is in the location indent and can be in the annular roll of location indent. The positioning boss is matched with the positioning rolling groove, so that the module main body and the conductive shell can be conveniently assembled and positioned.
Further, the battery core is a lithium battery winding core, and electrolyte is injected into the lithium battery winding core.
Further, a separation plate is arranged between the battery cell and the charge-discharge control module, and the separation plate is made of glass fiber materials.
Further, the conductive shell adopts a steel shell.
Further, the assembly process of the battery of the application is as follows: the lithium battery winding core is arranged in a steel shell, then a negative electrode lug is connected with the steel shell by adopting resistance welding, and a positive electrode lug is connected with a positive electrode post after passing through a glass fiber plate; and injecting proper electrolyte into the steel shell, sleeving a sealing ring into a sealing reserved groove, loading the whole injection molding charge and discharge control module into the steel shell, and rolling the steel shell at the position of a positioning rolling groove reserved by injection molding, so that the battery is packaged and fixed.
Further, the circuit principle of the battery of the application is as follows: the negative pole tab is connected with the bottom of the steel shell, and the steel shell is connected with the negative pole shrapnel on the PCBA; the positive electrode lug is connected with a positive electrode column (bottom) on the PCBA, and the PCBA and the battery core form a closed loop through the connection, so that the aim of connecting the electrical performance is fulfilled.
Furthermore, the battery cell can be subjected to a formation process after the battery is assembled, the steel shell can be used as a negative electrode of the battery cell, the Type-c interface can be used as a positive electrode of the battery cell, and the battery cell can be subjected to formation and voltage detection in the battery cell through the electric connection principle.
Further, the battery of the application can output two different voltages through the arrangement of the structure, specifically:
1. The positive pole is used as a positive pole, the steel shell is used as a negative pole to connect the battery core, the voltage of the battery core is directly output without reducing the voltage of the PCBA board, and the voltage is generally 3.7V;
2. The positive cap is used as a positive electrode, the steel shell is used as a negative electrode to connect the battery core, and the positive cap is connected with the positive electrode lug of the battery core through the PCBA board, so that the PCBA board can reduce the voltage and output the voltage of 1.5V.
The utility model has the advantages that compared with the prior art: firstly, the PCBA plate, the positive electrode cap, the positive electrode post and the negative electrode spring sheet are taken as a modularized whole to realize the assembly with the shell, so that the assembly efficiency can be improved; secondly, the battery cell is firstly filled into the shell, then electrolyte is injected, and then the battery cell is matched with the charge-discharge control module to realize formation, so that the assembly and production integration of the battery cell can be realized, and the automatic production of the battery can be realized.
Drawings
Fig. 1 is an isometric view of the present embodiment.
Fig. 2 is a front view of the present embodiment.
Fig. 3 is a cross-sectional view at A-A in fig. 2.
Fig. 4 is an exploded view of the present embodiment.
Fig. 5 is a schematic diagram of the structure of the charge-discharge control module of the present embodiment.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
In order to achieve the above object, the technical solution of this embodiment is as follows:
referring to fig. 1-5, this embodiment provides a rechargeable lithium battery capable of being automatically produced, including a steel shell 1, a battery cell 2, and a charge-discharge control module 3, wherein a first accommodating groove 11 and a second accommodating groove 12 are provided in the steel shell 1, the first accommodating groove 11 is disposed above the second accommodating groove 12, the charge-discharge control module 3 is disposed in the first accommodating groove 11, and the battery cell 2 is disposed in the second accommodating groove 12.
Further, the charge-discharge control module 3 includes a module main body 31, a PCBA plate 32, an anode cap 33, an anode post 34, a cathode spring 35, the PCBA plate 32, the anode post 34 are disposed in the module main body 31, the bottom of the anode cap 33 is disposed in the module main body 31 and electrically connected with the PCBA plate 32, the top of the anode cap 33 protrudes out of the module main body 31, one end of the cathode spring 35 is disposed in the module main body 31 and electrically connected with the PCBA plate 32, the other end of the cathode spring 35 protrudes out of the module main body 31 and electrically connected with the steel shell 1, a tab 4 is disposed in the battery core 2, the tab 4 includes an anode tab 41 and a cathode tab 42, the anode tab 41 is electrically connected with one end of the anode post 34, the cathode tab 42 is connected with the bottom of the steel shell 1, and one end of the anode post 34 far away from the anode tab 41 is connected with the PCBA plate 32. Compared with the traditional production process, the application puts the PCBA 32, the anode cap 33, the anode post 34 and the cathode shrapnel 35 with the protection circuit and the charge-discharge management circuit into a mould to be injection molded with plastic materials, and fixes the PCBA 32, the anode cap 33, the anode post 34 and the cathode shrapnel 35 on the module main body 31 molded by the plastic materials, so that the PCBA 32, the anode cap 33, the anode post 34 and the cathode shrapnel 35 are integrated to realize the assembly with the steel shell 1, and the assembly process can be simplified.
Further, a Type-c interface 36 is provided on the PCBA board 32, and a avoidance hole 37 corresponding to the Type-c interface 36 is provided on the module body 31. In the application, after the battery is assembled, the conductive steel shell 1 is used as the cathode of the battery cell 2, the Type-c interface 36 is used as the anode of the battery cell 2, and the battery cell 2 is subjected to a formation process.
Further, be provided with round seal reservation groove 38 on the lateral surface of module main part 31, be provided with sealing washer 5 on the seal reservation groove 38, sealing washer 5 centre gripping can realize the sealing of electric core 2 between module main part 31 and steel casing 1, avoids the electrolyte to spill over.
Further, a positioning rolling groove 39 is further formed in the outer side surface of the module main body 31, a positioning boss 11 protruding inwards is arranged on the steel shell 1, and the positioning boss 11 is clamped in the positioning rolling groove 39 and can roll in an annular shape in the positioning rolling groove 39. The positioning boss 11 is matched with the positioning rolling groove 39, so that the module main body 31 and the steel shell 1 can be assembled and positioned conveniently.
Further, the battery core 2 is a lithium battery winding core, and electrolyte is injected into the lithium battery winding core.
Further, a glass fiber board 6 is arranged between the battery cell 2 and the charge-discharge control module 3, so that isolation between the battery cell 2 and the charge-discharge control module 3 is realized.
Further, the assembly process of the battery of the application is as follows: the lithium battery winding core is arranged in a steel shell 1, then a negative electrode lug 42 is connected with the steel shell 1 by adopting resistance welding, and a positive electrode lug 41 passes through a glass fiber plate and then is connected with a positive electrode post 34; and injecting proper electrolyte into the steel shell 1, sleeving the sealing ring 5 into the sealing reserved groove 38, loading the whole injection molding charge-discharge control module 3 into the steel shell 1, and rolling the steel shell 1 at the position of the injection molding reserved positioning rolling groove 39, so that the battery is packaged and fixed.
Further, the circuit principle of the battery of the application is as follows: the negative pole tab 42 is connected with the bottom of the steel shell 1, and the steel shell 1 is connected with the negative pole shrapnel 35 on the PCBA; the positive electrode lug 41 is connected with the positive electrode post 34 (bottom) on the PCBA, and the PCBA and the battery core 2 form a closed loop through the connection, so that the purpose of connecting the electrical performance is achieved.
Furthermore, the application can perform the formation process on the battery cell 2 after the battery is assembled, and the steel shell 1 can be used as the negative electrode of the battery cell 2, the Type-c interface 36 can be used as the positive electrode of the battery cell 2, and the battery cell 2 can be formed and the voltage inside the battery cell 2 can be detected through the electric connection principle.
Further, the battery of the application can output two different voltages through the arrangement of the structure, specifically:
1. The positive pole 34 is used as a positive pole, the steel shell 1 is used as a negative pole to connect the battery core 2, and the voltage of the battery core 2 is directly output without the voltage reduction of the PCBA 32, and is generally 3.7V;
2. The battery cell 2 is connected with the positive electrode cap 33 as a positive electrode and the steel can 1 as a negative electrode, and the positive electrode cap 33 is connected with the positive electrode tab 41 of the battery cell 2 through the PCBA board 32, so that the PCBA board 32 can step down and output a voltage of 1.5V.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (7)
1. The rechargeable lithium battery capable of being automatically produced is characterized by comprising a conductive shell, a battery cell and a charge-discharge control module, wherein a first accommodating groove and a second accommodating groove are formed in the conductive shell, the first accommodating groove is formed above the second accommodating groove, the charge-discharge control module is arranged in the first accommodating groove, and the battery cell is arranged in the second accommodating groove;
The charge-discharge control module comprises a module main body, a PCBA plate, an anode cap, an anode post and a cathode spring plate, wherein the PCBA plate and the anode post are arranged in the module main body, the bottom of the anode cap is arranged in the module main body and is electrically connected with the PCBA plate, the top of the anode cap protrudes out of the module main body, one end of the cathode spring plate is arranged in the module main body and is electrically connected with the PCBA plate, the other end of the cathode spring plate protrudes out of the module main body and is electrically connected with the conductive shell, an electrode tab is arranged in the battery core and comprises an anode tab and a cathode tab, the anode tab is electrically connected with one end of the anode post, the cathode tab is connected with the bottom of the conductive shell, and one end of the anode post, which is far away from the anode tab, is connected with the PCBA plate.
2. The automated production rechargeable lithium battery of claim 1, wherein the PCBA board is provided with a Type-c interface, and the module body is provided with a relief hole corresponding to the Type-c interface.
3. The automated production rechargeable lithium battery of claim 1, wherein a ring of sealing grooves is provided on the outer side of the module body, and a sealing ring is provided on the sealing grooves, and the sealing ring is clamped between the module body and the conductive housing.
4. The automated production rechargeable lithium battery of claim 1, wherein the outer side of the module body is further provided with a positioning rolling groove, the conductive housing is provided with a positioning boss protruding inwards, and the positioning boss is clamped in the positioning rolling groove and can roll in a ring shape in the positioning rolling groove.
5. The automatically producible rechargeable lithium battery of claim 1, wherein the battery cell is a lithium battery roll cell having electrolyte injected therein.
6. The automated production rechargeable lithium battery of claim 1, wherein a separator is disposed between the battery cell and the charge/discharge control module, and the separator is made of glass fiber material.
7. An automatically producible rechargeable lithium battery according to claim 1, wherein the conductive housing is a steel shell.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221282179U true CN221282179U (en) | 2024-07-05 |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |