CN111112887A - Battery module welding device, battery module welding method and battery module - Google Patents
Battery module welding device, battery module welding method and battery module Download PDFInfo
- Publication number
- CN111112887A CN111112887A CN201911348083.2A CN201911348083A CN111112887A CN 111112887 A CN111112887 A CN 111112887A CN 201911348083 A CN201911348083 A CN 201911348083A CN 111112887 A CN111112887 A CN 111112887A
- Authority
- CN
- China
- Prior art keywords
- end plate
- battery module
- support
- welding
- bus bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention relates to the field of welding and discloses a battery module welding device, a battery module welding method and a battery module. The battery module welding device comprises an upper end plate (13) and a lower end plate (14) which can be detachably matched, a supporting arm (141) used for supporting a busbar (20) is formed between the upper end plate (13) and the lower end plate (14), and when the upper end plate (13) and the lower end plate (14) are matched, two ends of the supporting arm (141) are respectively connected to the upper end plate (13) and the lower end plate (14) to provide welding support. Through the technical scheme, when welding, support arm (141) can provide the support when external force is pressed utmost point ear to busbar (20), make utmost point ear (31) and busbar can be tightly paste together make things convenient for follow-up utmost point ear welding, avoid appearing rosin joint, weld and wear, when improving the welding quality, prevent that electric core (30) from receiving the oppression and damaging.
Description
Technical Field
The invention relates to the field of welding, in particular to a battery module welding device, a battery module welding method and a battery module.
Background
At present, the development of lithium ion power batteries is rapid, the design of a battery module is crucial, and the production efficiency is concerned. In order to reduce the production cost and ensure the production yield, the assembly of the battery module is important.
At present soft packet of lithium cell is because there is not firm shell, consequently at production and in-process of using, and electric core is the scratch by piercing easily, at utmost point ear welded in-process, appears rosin joint easily, welds the problem of wearing.
Disclosure of Invention
The invention aims to provide a battery module welding device which can provide firm support for compacting a lug when the lug is welded, and improve the welding quality.
In order to achieve the above object, the present invention provides a welding device for a battery module, including an upper end plate and a lower end plate detachably engaged with each other, wherein a support arm for supporting a bus bar is formed between the upper end plate and the lower end plate, and when the upper end plate and the lower end plate are engaged with each other, both ends of the support arm are respectively connected to the upper end plate and the lower end plate to provide welding support.
Through above-mentioned technical scheme, when the welding, the support arm can provide the support when external force presses utmost point ear to the busbar, is making utmost point ear and busbar can be tight paste together make things convenient for follow-up utmost point ear to weld, avoids appearing rosin joint, welds and wears, when improving the welding quality, prevents that electric core from receiving the oppression and damaging.
Furthermore, a plurality of the support arm interval sets up and be perpendicular to the lower end plate, a plurality of the support arm is located same horizontal plane.
Furthermore, the upper end plate is provided with a support hole corresponding to the support arm.
Furthermore, a supporting sleeve corresponding to the supporting arm is arranged on the upper end plate and is perpendicular to the upper end plate, and when the upper end plate is matched with the lower end plate, the supporting arm is inserted into the supporting sleeve.
Furthermore, the lower end plate is provided with blind holes or through holes which are positioned on the same straight line, and the upper end plate is provided with support holes corresponding to the blind holes;
when the support arm is matched, one end of the support arm is inserted into the blind hole or the through hole of the lower end plate, and the other end of the support arm is inserted into the support hole of the upper end plate.
Further, a support rod is arranged on the upper end plate and/or the lower end plate;
the support rod is positioned on the side opposite to the support arm when the upper end plate and the lower end plate are matched.
Another aspect of the present invention provides a battery module welding method including providing a support arm having a support surface during assembly of a battery module, disposing a bus bar and tabs 31 on the support surface and pressing for welding.
Like this, when the welding, the support arm can provide the support when external force presses utmost point ear to the busbar, is making utmost point ear and busbar can be tight paste make things convenient for follow-up utmost point ear welding together, avoids appearing rosin joint, welds and wears, when improving the welding quality, prevents that electric core from receiving the oppression and damaging.
Further, the left side and the right side of the battery module are clamped by the left end plate and the right end plate;
installing the bus bar on one side of a lug, and enabling the lug to penetrate through the through groove of the bus bar and be partially positioned outside the through groove;
clamping the upper side and the lower side of the battery module by using the upper end plate and the lower end plate, and enabling each support arm to penetrate through a gap between adjacent tabs and be correspondingly inserted into a support hole in each upper end plate;
rolling the tab to enable the tab to be tightly attached to the busbar;
and welding the welding lug and the bus bar.
Further, the through grooves are arranged at equal intervals on the bus bar.
The invention also provides a battery module which comprises a bus bar and a pole lug, wherein the bus bar and the pole lug are supported, pressed and tightly contacted and welded through the battery module welding method or the battery module welding device.
Therefore, the safety performance and the service life of the battery module can be effectively improved.
Furthermore, the bus bar is arranged on a bus bar support, and the bus bar support is slightly wider than the width of the battery cell on one side of the tab; in a state where the upper end plate and the lower end plate are fitted, the upper end plate and the lower end plate can clamp the battery cell with a portion of the busbar bracket wider than the battery cell.
Drawings
Fig. 1 is a schematic structural view of one embodiment of a battery module welding apparatus or a battery module according to the present invention;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is a schematic view of a bus bar;
FIG. 4 is an enlarged view of portion A of FIG. 2;
FIG. 5 is a schematic view of a welded or welded structure;
FIG. 6 is a cross-sectional view B-B of FIG. 5;
fig. 7 is an enlarged view of a portion C in fig. 6.
Description of the reference numerals
10 rectangular shell 11 left end plate
12 right end plate 13 upper end plate
14 lower end plate 20 bus bar
21 through groove 111 stay bar
131 supporting hole 141 supporting column
30 electric core 31 utmost point ear
Detailed Description
The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, the use of the terms of orientation such as "upper and lower" in the case where no description is made to the contrary generally means the orientation in the assembled and used state. "inner and outer" refer to the inner and outer contours of the respective component itself.
A first aspect of the present invention provides a battery module welding apparatus, as shown in fig. 1 and 2, the battery module welding apparatus includes an upper end plate 13 and a lower end plate 14 detachably engaged with each other, a support arm 141 for supporting a bus bar 20 is formed between the upper end plate 13 and the lower end plate 14, and when the upper end plate 13 and the lower end plate 14 are engaged with each other, both ends of the support arm 141 are respectively connected to the upper end plate 13 and the lower end plate 14 to provide welding support.
Like this, when the welding, as shown in fig. 6 and 7, support arm 141 can provide the support when external force presses utmost point ear to the busbar, is making utmost point ear and busbar can be closely the subsides together make things convenient for follow-up utmost point ear to weld, avoids appearing rosin joint, welds and wears, when improving the welding quality, prevents that electric core from receiving the oppression and damaging.
In an alternative embodiment, as shown in fig. 2, a plurality of the supporting arms 141 are spaced apart from each other and perpendicular to the lower end plate 14, and the supporting arms 141 are located on the same horizontal plane. Further, the upper end plate 13 is provided with a support hole 131 corresponding to the support arm 141.
Thus, after the supporting arm 141 is inserted into the supporting hole 131, the supporting surface formed by the supporting arm 141 can bear larger pressure, and the cell is prevented from being damaged by compression.
In another alternative embodiment, the upper end plate 13 is provided with a support sleeve corresponding to the support arm 141, the support sleeve is perpendicular to the upper end plate 13, and the support arm 141 is inserted into the support sleeve when the upper end plate 13 and the lower end plate 14 are matched.
Of course, the support arm 141 may not be provided on the lower end plate 14, i.e., may not be provided integrally with the lower end plate 14, and the support arm 141 and the upper end plate 13 may be separate bodies. Specifically, the lower end plate 14 is provided with blind holes or through holes located on the same straight line, and the upper end plate 13 is provided with support holes 131 corresponding to the blind holes; when the support arms 141 are matched, one ends of the support arms 141 are inserted into the blind holes or the through holes of the lower end plate 14, the other ends of the support arms are inserted into the support holes 131 of the upper end plate 13, and a support surface is formed between the support arms 141. This also achieves a supporting effect.
In order to enable the battery module welding device to be applied to an automation line or a semi-automation line, or to facilitate manual grasping of the upper end plate 13 and the lower end plate 14. A stay 111 is arranged on the upper end plate 13 and/or the lower end plate 14; the stay 111 is located on the opposite side of the support arm 141 when the upper end plate 13 and the lower end plate 14 are mated. The stay bars 111 at the upper end plate 13 and the lower end plate 14 are screwed with the upper end plate 13 and the lower end plate 14.
Preferably, the upper end plate 13 and the lower end plate 14 are both rectangular end plates and have the same length and width. The plurality of supporting arms 141 are disposed at the edge of the long side of the lower end plate 14 and perpendicular to the side surface of the upper end plate 14, and the supporting holes 131 corresponding to the supporting arms 141 are disposed at the edge of the long side of the upper end plate 13. Further preferably, a layer of foam is arranged on the side walls of the upper end plate 13 and the lower end plate 14. The function of the foam is that after the upper end plate 13 and the lower end plate 14 are matched, the foam can form a buffer between the upper end plate 13, the lower end plate 14 and the battery cell 30, and the battery cell is prevented from being damaged by the direct contact of the upper end plate 13 and the lower end plate 14 with the battery cell 30.
The second aspect of the present invention provides a battery module welding method including providing a support arm 141 having a support surface during the assembly of a battery module, disposing a bus bar 20 and tabs on the support surface and compressing for welding.
Like this, when welding utmost point ear, support arm 141 can provide the support when external force presses utmost point ear to the busbar, is making utmost point ear 31 and busbar can be tight paste make things convenient for follow-up utmost point ear 31 to weld together, avoids appearing rosin joint, welds and wears, when improving the welding quality, prevents that electric core 30 from receiving the oppression and damaging.
More specifically, the welding method includes: clamping the left side and the right side of the battery module by using a left end plate 11 and a right end plate 12; installing the bus bar 20 on one side of a tab, and enabling the tab to penetrate through the through groove 21 of the bus bar 20 and be partially positioned outside the through groove 21; clamping the upper side and the lower side of the battery module by using the upper end plate 13 and the lower end plate 14, and inserting each support arm 141 into the support hole 131 of each upper end plate 13 correspondingly through the gap between adjacent tabs; rolling the tabs to enable the tabs to be tightly attached to the busbar 20; the welding tabs are welded to the bus bar 20.
As shown in fig. 3, the through grooves 21 are arranged at equal intervals on the bus bar 20.
Preferably, the left end plate 11 and the right end plate 12 are configured as rectangular end plates with the same shape, and a support rod 111 is disposed on one side surface of each of the left end plate 11 and the right end plate 12. The stay 111 located on the left end plate 11 and the right end plate 12 is screwed with the left end plate 11 and the right end plate 12.
After the above steps are completed, the method further comprises the following steps: withdrawing the upper end plate 13 and the lower end plate 14, and respectively welding an upper cover plate and a lower cover plate at the positions of the original upper end plate 13 and the original lower end plate 14; a front cover plate and/or a rear cover plate are welded to the busbar 20. And withdrawing the left end plate 11 and the right end plate 12, and installing a fireproof plate and an insulating plate at the original left end plate 11 and the original right end plate 12.
Preferably, the width of the bus bar 20 is set to be slightly wider than the width of one side of the tab 31. This is intended to enable the cell 30 to be clamped with a portion of the bus bar 20 wider than the cell 30.
The third aspect of the invention provides a battery module comprising bus bars 20 and tabs 31, the bus bars 20 and tabs 31 being support-pressed tight-contact welded by the above-described battery module welding method or by the above-described battery module welding device. The safety performance and the life that this battery module can obviously improve than prior art.
As shown in fig. 1 and 2, in the fitting state, the upper end plate 13 and the lower end plate 14 will be attached to and pressed against the side surface of the battery cell 30, and in order to prevent the upper end plate 13 and the lower end plate 14 from damaging the battery cell 30, the bus bar 20 is mounted on a bus bar support. Preferably, the busbar 20 is located within the boundary of the busbar holder, and the busbar holder is slightly wider than the width of the battery cell 30 on the side of the tab 31. In this way, when the upper end plate 13 and the lower end plate 14 are fitted, a portion wider than the battery cell 30 serves as a support to prevent the upper end plate 13 and the lower end plate 14 from pressing on the battery cell 30, and the upper end plate 13 and the lower end plate 14 can clamp the battery cell 30 by using a portion of the bus bar support wider than the battery cell 30. Preferably, the width of the battery cell 30 on both sides of the bus bar support is 1mm-2 mm.
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (11)
1. The battery module welding device is characterized by comprising an upper end plate (13) and a lower end plate (14) which can be detachably matched, wherein a supporting arm (141) used for supporting a bus bar (20) is formed between the upper end plate (13) and the lower end plate (14), and when the upper end plate (13) and the lower end plate (14) are matched, two ends of the supporting arm (141) are respectively connected to the upper end plate (13) and the lower end plate (14) to provide welding support.
2. The battery module welding apparatus according to claim 1, wherein a plurality of the support arms (141) are arranged at intervals and perpendicular to the lower end plate (14), and the plurality of the support arms (141) are located on the same horizontal plane.
3. The battery module welding apparatus according to claim 2, wherein the upper end plate (13) is provided with support holes (131) corresponding to the support arms (141).
4. The battery module welding apparatus according to claim 2, wherein the upper end plate (13) is provided with a support sleeve corresponding to the support arm (141), the support sleeve being perpendicular to the upper end plate (13), and the support arm (141) is inserted into the support sleeve when the upper end plate (13) and the lower end plate (14) are mated.
5. The battery module welding device according to claim 1, wherein the lower end plate (14) is provided with blind holes or through holes which are located on the same straight line, and the upper end plate (13) is provided with support holes (131) corresponding to the blind holes;
when the support arm (141) is matched, one end of the support arm is inserted into the blind hole or the through hole of the lower end plate (14), and the other end of the support arm (141) is inserted into the support hole (131) of the upper end plate (13).
6. The battery module welding device according to any one of claims 1-5, wherein a stay (111) is provided on the upper end plate (13) and/or the lower end plate (14);
the stay (111) is located on the opposite side of the support arm (141) when the upper end plate (13) and the lower end plate (14) are mated.
7. A battery module welding method includes providing a support arm (141) having a support surface during a battery module assembly process, disposing a bus bar (20) and tabs on the support surface and compressing for welding.
8. The battery module welding method according to claim 7, wherein:
the left side and the right side of the battery module are clamped by a left end plate (11) and a right end plate (12);
mounting the bus bar (20) on one side of a tab, and enabling the tab to penetrate through the through groove (21) of the bus bar (20) and be partially positioned outside the through groove (21);
clamping the upper side and the lower side of the battery module by using the upper end plate (13) and the lower end plate (14), and correspondingly inserting each support arm (141) into a support hole (131) on each upper end plate (13) through a gap between adjacent tabs;
rolling the tabs to enable the tabs to be tightly attached to the bus bar (20);
and welding the welding lug and the bus bar (20).
9. The battery module welding method according to claim 7, wherein the through-grooves (21) are arranged at equal intervals on the bus bar (20).
10. A battery module, characterized in that the battery module comprises bus bars (20) and tabs (31), and the bus bars (20) and the tabs (31) are support-press tight-contact welded by the battery module welding method according to any one of claims 7 to 9 or by the battery module welding apparatus according to any one of claims 1 to 6.
11. The battery module welding method according to claim 10, characterized in that the busbar (20) is mounted on a busbar holder which is slightly wider than the width of the cell (30) on the side of the tab (31); in a state where the upper end plate (13) and the lower end plate (14) are fitted, the upper end plate (13) and the lower end plate (14) can clamp the battery cell (30) with a portion of the bus bar support wider than the battery cell (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911348083.2A CN111112887A (en) | 2019-12-24 | 2019-12-24 | Battery module welding device, battery module welding method and battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911348083.2A CN111112887A (en) | 2019-12-24 | 2019-12-24 | Battery module welding device, battery module welding method and battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111112887A true CN111112887A (en) | 2020-05-08 |
Family
ID=70501944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911348083.2A Pending CN111112887A (en) | 2019-12-24 | 2019-12-24 | Battery module welding device, battery module welding method and battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111112887A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204818552U (en) * | 2015-07-31 | 2015-12-02 | 浙江天能电池江苏新能源有限公司 | Can firm comb plate mould that welds utmost point ear |
| CN105449145A (en) * | 2014-09-26 | 2016-03-30 | 中信国安盟固利动力科技有限公司 | Tab laser welding structure of lithium ion battery |
| CN107214446A (en) * | 2017-07-06 | 2017-09-29 | 江西优特汽车技术有限公司 | Battery modules tab welding servicing unit and battery modules pole ear welding method |
| CN206747863U (en) * | 2017-05-16 | 2017-12-15 | 广东光博智能科技有限公司 | A kind of soft package lithium battery cathode tab Welder plate |
| EP3340345A1 (en) * | 2016-12-23 | 2018-06-27 | SK Innovation Co., Ltd. | Battery module |
| CN208352461U (en) * | 2018-12-10 | 2019-01-08 | 江苏银基烯碳能源科技有限公司 | The device for assembling and welding suitable for Soft Roll mould group |
| CN209598468U (en) * | 2019-01-15 | 2019-11-08 | 无锡至极动能科技有限公司 | A kind of soft-package battery laser welding tooling |
| CN209792976U (en) * | 2019-03-19 | 2019-12-17 | 联动天翼新能源有限公司 | Battery pack welding lug leveling and positioning tool |
-
2019
- 2019-12-24 CN CN201911348083.2A patent/CN111112887A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449145A (en) * | 2014-09-26 | 2016-03-30 | 中信国安盟固利动力科技有限公司 | Tab laser welding structure of lithium ion battery |
| CN204818552U (en) * | 2015-07-31 | 2015-12-02 | 浙江天能电池江苏新能源有限公司 | Can firm comb plate mould that welds utmost point ear |
| EP3340345A1 (en) * | 2016-12-23 | 2018-06-27 | SK Innovation Co., Ltd. | Battery module |
| CN206747863U (en) * | 2017-05-16 | 2017-12-15 | 广东光博智能科技有限公司 | A kind of soft package lithium battery cathode tab Welder plate |
| CN107214446A (en) * | 2017-07-06 | 2017-09-29 | 江西优特汽车技术有限公司 | Battery modules tab welding servicing unit and battery modules pole ear welding method |
| CN208352461U (en) * | 2018-12-10 | 2019-01-08 | 江苏银基烯碳能源科技有限公司 | The device for assembling and welding suitable for Soft Roll mould group |
| CN209598468U (en) * | 2019-01-15 | 2019-11-08 | 无锡至极动能科技有限公司 | A kind of soft-package battery laser welding tooling |
| CN209792976U (en) * | 2019-03-19 | 2019-12-17 | 联动天翼新能源有限公司 | Battery pack welding lug leveling and positioning tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111341954B (en) | Soft package battery module and assembly method thereof | |
| CN210052815U (en) | Secondary lithium battery with multiple winding cores | |
| CN212858184U (en) | Blade battery welding device | |
| CN109244285A (en) | Power battery top cap and power battery | |
| CN109148938B (en) | Battery welding method and battery | |
| CN210074013U (en) | Battery module bus board, battery module, secondary battery and power consumption device | |
| CN110355470B (en) | Battery tab switching structure and switching method | |
| CN111112887A (en) | Battery module welding device, battery module welding method and battery module | |
| CN209998634U (en) | welding tool suitable for battery module | |
| CN213304300U (en) | Utmost point post structure, apron subassembly and battery | |
| CN211102380U (en) | Positive electrode welding clamp | |
| CN211840590U (en) | Laser welding pressing plate for modular battery module | |
| CN218856001U (en) | Welding tool and welding equipment | |
| CN210578397U (en) | Assembled fixing mechanism for solar panel | |
| CN111416094A (en) | Lithium ion battery module | |
| CN215941957U (en) | Be used for welded device of lithium cell module | |
| CN212874566U (en) | Lithium battery processing equipment with clamping framework | |
| CN214477794U (en) | Electric connection assembly and battery module | |
| CN212967947U (en) | Capsule endoscope and battery pack thereof | |
| CN110890578B (en) | Method for manufacturing battery module | |
| CN210744059U (en) | Tab and busbar connection structure and battery module | |
| CN210692840U (en) | But limit structure's battery socket | |
| CN110993873B (en) | Soft package cell assembly device, soft package cell module and method for assembling soft package cell module | |
| CN202004557U (en) | Retaining clip for small and special electrical machine and small and special electrical machine | |
| CN220253423U (en) | Portable battery pack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200508 |