CN111969177A - Pole post assembly integrated with liquid injection hole, battery top cover and liquid injection method - Google Patents
Pole post assembly integrated with liquid injection hole, battery top cover and liquid injection method Download PDFInfo
- Publication number
- CN111969177A CN111969177A CN202010993279.3A CN202010993279A CN111969177A CN 111969177 A CN111969177 A CN 111969177A CN 202010993279 A CN202010993279 A CN 202010993279A CN 111969177 A CN111969177 A CN 111969177A
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- liquid injection
- liquid
- pole
- post
- sealing plug
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- 239000007788 liquid Substances 0.000 title claims abstract description 136
- 238000002347 injection Methods 0.000 title claims abstract description 114
- 239000007924 injection Substances 0.000 title claims abstract description 114
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 59
- 230000000903 blocking effect Effects 0.000 claims abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- 238000000605 extraction Methods 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 3
- 239000003792 electrolyte Substances 0.000 abstract description 23
- 230000008569 process Effects 0.000 description 5
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The invention discloses a pole post assembly integrating a liquid injection hole, a battery top cover and a liquid injection method, wherein the pole post assembly integrating the liquid injection hole comprises a pole post and a conductive column fixedly arranged at the top end of the pole post, the pole post and the conductive column are correspondingly provided with a through liquid injection hole, and the pole post is also provided with an elastic rubber sealing plug for blocking the liquid injection hole. According to the invention, by arranging the pole and the conductive column fixedly arranged at the top end of the pole, the pole and the conductive column are correspondingly provided with the through liquid injection hole, and the pole is also provided with the elastic rubber sealing plug for blocking the liquid injection hole; through adopting utmost point post and the integrated mode of notes liquid hole to set up the elasticity rubber sealing plug on utmost point post, will annotate liquid needle tubing and impale the sealing plug and stretch into in the battery case during notes liquid, the sealing plug is in encapsulated situation with annotating liquid needle tubing outer wall all the time, after annotating the liquid needle tubing of extracting in the notes completion of annotating the liquid, the puncture pinhole on the sealing plug can automatic closure, thereby can be better avoid electrolyte spill.
Description
Technical Field
The invention relates to the technical field of power batteries, in particular to a pole post assembly integrated with a liquid injection hole, a battery top cover and a liquid injection method.
Background
The power battery generally includes a battery core, an electrolyte, a battery case, and a top cover disposed on the battery case. At present, the top cover of the power battery is mostly as shown in fig. 1, and the top cover is provided with an explosion-proof valve component 3, a liquid injection hole 13 and two pole assemblies 1S. During production, electrolyte is required to be injected into the battery shell through the electrolyte injection hole, and then the seal nail is welded on the electrolyte injection hole. The liquid injection hole is close to the position of the explosion-proof valve assembly, certain pressure is reserved in the battery shell after liquid injection is completed, and the liquid injection hole is easily polluted by splashing of electrolyte when the liquid injection nozzle is withdrawn. If the sealing nail is not cleaned during welding, poor welding is easily caused, an additional cleaning step is needed, so that the production cost is increased, and the production efficiency is reduced. Need carry out the evacuation to battery case earlier when annotating the liquid, just can annotate the liquid, because annotate the liquid hole only one, the centre needs many times evacuation to annotate liquid many times and can accomplish whole notes liquid operation, very big reduction annotate the efficiency of liquid process.
Disclosure of Invention
The invention aims to: aiming at the problems that electrolyte is easy to pollute an injection hole and the injection process is low in efficiency when a power battery is injected with the electrolyte, the pole post assembly integrating the injection hole, the battery top cover and the injection method are provided, the mode that the pole post and the injection hole are integrated is adopted, the soft rubber sealing structure is arranged on the pole post, the phenomenon that the electrolyte pollutes the injection hole is avoided, meanwhile, double needle tubes are adopted to synchronously exhaust and inject the electrolyte, and the efficiency of the injection process is improved.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides an integrated utmost point post subassembly of annotating liquid hole, includes utmost point post and the fixed conductive post of locating utmost point post top, utmost point post with it is equipped with the notes liquid hole that link up to correspond on the conductive post, still be equipped with the elastic rubber sealing plug that is used for blocking notes liquid hole on the utmost point post.
According to the invention, by arranging the pole and the conductive column fixedly arranged at the top end of the pole, the pole and the conductive column are correspondingly provided with the through liquid injection hole, and the pole is also provided with the elastic rubber sealing plug for blocking the liquid injection hole; through adopting utmost point post and the integrated mode of notes liquid hole to set up the elasticity rubber sealing plug on utmost point post, will annotate liquid needle tubing and impale the sealing plug and stretch into in the battery case during notes liquid, the sealing plug is in encapsulated situation with annotating liquid needle tubing outer wall all the time, after annotating the liquid needle tubing of extracting in the notes completion of annotating the liquid, the puncture pinhole on the sealing plug can automatic closure, thereby can be better avoid electrolyte spill.
As a preferable scheme of the invention, a counter bore groove corresponding to the position of the liquid injection hole is arranged at the top end of the pole, the cross-sectional area of the counter bore groove is larger than that of the liquid injection hole, and the sealing plug is arranged in the counter bore groove. By adopting the technical scheme, the lower side of the sealing plug is abutted against the bottom of the counter bore groove, so that the sealing plug can be prevented from generating large displacement when the injection needle tube penetrates into the sealing plug.
As a preferable scheme of the invention, the sealing plug is provided with a boss, and the outer wall of the boss is matched with the inner wall of the liquid injection hole. Through set up the boss on the sealing plug, and the boss is located annotates the liquid hole, and this boss can increase the sealing plug and annotate the contact length of liquid needle tubing, strengthens the sealed effect to annotating the liquid needle tubing.
In a preferred embodiment of the present invention, the pour hole has a circular, elliptical, or polygonal shape.
As a preferable scheme of the invention, the pole is made of copper or aluminum material.
The utility model provides a power battery top cap, includes the top cover plate, be equipped with two utmost point post subassemblies and explosion-proof valve subassembly on the top cover plate, the both sides of explosion-proof valve subassembly are located respectively to two utmost point post subassemblies, and have at least one utmost point post subassembly be above the integrated utmost point post subassembly of annotating the liquid hole. Through be equipped with the utmost point post subassembly in at least one integrated notes liquid hole on battery roof cover board to can pour into electrolyte into battery case through this utmost point post subassembly, the sealing plug can be better avoids electrolyte spill simultaneously.
As a preferred scheme of the present invention, the top cover plate is an injection molded top cover plate or an aluminum top cover plate, so that the pole assembly is conveniently fixed on the top cover plate.
The power battery liquid injection method comprises the steps of injecting liquid through the pole post assembly integrated with the liquid injection hole, penetrating a liquid injection needle tube through a sealing plug and extending into a battery shell, wherein the liquid injection needle tube comprises a liquid injection tube and an exhaust tube, and liquid injection and vacuum pumping are synchronously performed. According to the battery liquid injection method, the pole assembly integrated with the liquid injection hole is used for injecting liquid, the sealing plug can better avoid electrolyte from splashing, liquid injection and vacuumizing can be performed synchronously, the shell is kept in a negative pressure state all the time, the liquid injection time can be shortened, and the liquid injection efficiency can be improved.
In a preferred embodiment of the present invention, the length of the liquid injection tube extending into the battery case is longer than the length of the air exhaust tube extending into the battery case. The liquid injection pipe extends into the shell deeply, and the gas extraction pipe extends into the shell shallowly, so that the electrolyte can be prevented from being extracted in the synchronous vacuumizing and liquid injection processes.
As the preferred scheme of the invention, the liquid injection pipe and the exhaust pipe are integrated into a whole structure, so that the sealing plug can be conveniently inserted or pulled out simultaneously, and the liquid injection operation is convenient.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the invention, by arranging the pole and the conductive column fixedly arranged at the top end of the pole, the pole and the conductive column are correspondingly provided with the through liquid injection hole, and the pole is also provided with the elastic rubber sealing plug for blocking the liquid injection hole; by adopting the mode of integrating the pole and the injection hole and arranging the elastic rubber sealing plug on the pole, the injection needle tube is pierced through the sealing plug and extends into the battery shell during injection, the sealing plug and the outer wall of the injection needle tube are always in a sealing state, and after the injection needle tube is pulled out after injection is finished, the piercing needle hole on the sealing plug can be automatically closed, so that the electrolyte can be better prevented from splashing;
2. according to the battery liquid injection method, the pole assembly integrated with the liquid injection hole is used for injecting liquid, the sealing plug can better avoid electrolyte from splashing, liquid injection and vacuumizing can be performed synchronously, the shell is kept in a negative pressure state all the time, the liquid injection time can be shortened, and the liquid injection efficiency can be improved.
Drawings
Fig. 1 is a schematic diagram of a top cover of a power battery in the prior art.
FIG. 2 is a schematic view of the pole assembly of the integrated injection hole of the present invention.
Fig. 3 is a sectional view of fig. 2.
FIG. 4 is a schematic view of the elliptical injection well post assembly of the present invention.
Fig. 5 is a schematic diagram of a top cover of a power battery in the invention.
Fig. 6 is a sectional view of fig. 5.
Fig. 7 is a schematic view of injection in the present invention.
The labels in the figure are: the system comprises a 1S-pole component, a 1-pole component, a 11-pole, a 111-counter sink, a 12-conductive column, a 13-liquid injection hole, a 14-sealing plug, a 141-boss, a 2-top cover plate, a 3-explosion-proof valve component, a 4-liquid injection needle tube, a 41-liquid injection tube and a 42-air extraction tube.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
As shown in fig. 2, fig. 3 and fig. 4, the present embodiment provides a post assembly 1 integrated with a liquid injection hole, which includes a post 11 and a conductive post 12 fixedly connected to a top end of the post 11, where the post 11 and the conductive post 12 are both in a cylindrical structure, a through liquid injection hole 13 is correspondingly disposed at a central position of the post 11 and the conductive post 12, and an elastic rubber sealing plug 14 for blocking the liquid injection hole 13 is further disposed on the post 11.
According to the invention, by arranging the pole and the conductive column fixedly arranged at the top end of the pole, the pole and the conductive column are correspondingly provided with the through liquid injection hole, and the pole is also provided with the elastic rubber sealing plug for blocking the liquid injection hole; through adopting utmost point post and the integrated mode of notes liquid hole to set up the elasticity rubber sealing plug on utmost point post, will annotate liquid needle tubing and impale the sealing plug and stretch into in the battery case during notes liquid, the sealing plug is in encapsulated situation with annotating liquid needle tubing outer wall all the time, after annotating the liquid needle tubing of extracting in the notes completion of annotating the liquid, the puncture pinhole on the sealing plug can automatic closure, thereby can be better avoid electrolyte spill.
In this embodiment, the top end of the pole 11 is provided with a counter bore groove 111 corresponding to the position of the liquid injection hole 13, preferably, the center of the counter bore groove 111 coincides with the center of the liquid injection hole 13, the cross-sectional area of the counter bore groove 111 is larger than that of the liquid injection hole 13, and the sealing plug 14 is arranged in the counter bore groove 111. By adopting the technical scheme, the lower side of the sealing plug is abutted against the bottom of the counter bore groove, so that the sealing plug can be prevented from generating large displacement when the injection needle tube penetrates into the sealing plug. In order to seal the sealing plug with the bottom surface of the counter bore groove, the thickness of the sealing plug positioned in the counter bore groove is slightly larger than the depth of the counter bore groove, so that after the conductive column is connected with the top end of the pole, appropriate compression amount can be formed on the sealing plug, and the sealing plug is tightly attached to the bottom surface of the counter bore groove.
In this embodiment, a boss 141 is provided on the lower side surface of the sealing plug 14, and the outer wall of the boss 141 is engaged with the inner wall of the liquid injection hole 13. Through set up the boss on the sealing plug, and the boss is located annotates the liquid hole, and this boss can increase the sealing plug and annotate the contact length of liquid needle tubing, strengthens the sealed effect to annotating the liquid needle tubing.
In this embodiment, the liquid inlet 13 is circular, elliptical or polygonal.
In this embodiment, the electrode post 11 is made of copper or aluminum. The aluminum pole is used for the positive electrode of the battery, and the copper pole is used for the negative electrode of the battery, so that the corrosion of electrolyte can be prevented. When the power battery is assembled, the pole is connected with the pole lug of the battery cell through flexible connection.
Example 2
As shown in fig. 5 and fig. 6, the embodiment provides a power battery top cover, which includes a top cover plate 2, the top cover plate 2 is provided with two pole assemblies and an explosion-proof valve assembly 3, the two pole assemblies are respectively disposed on two sides of the explosion-proof valve assembly 3, and at least one pole assembly is the pole assembly 1 integrated with the liquid injection hole in embodiment 1. Through be equipped with the utmost point post subassembly in at least one integrated notes liquid hole on battery roof cover board to can pour into electrolyte into battery case through this utmost point post subassembly, the sealing plug can be better avoids electrolyte spill simultaneously.
In this embodiment, the top cover plate 2 is an injection-molded top cover plate or an aluminum top cover plate, so that the pole assembly 1 is conveniently fixed on the top cover plate. When for the top cover plate of moulding plastics, utmost point post subassembly 1 can make wholly in advance, is about to place the sealing plug in the counter bore inslot on utmost point post top, leads electrical pillar and utmost point post top fixed connection, then carries out top cover plate injection moulding. When the top cover plate is made of aluminum, the top end of the pole is sleeved into the upper opening of the top cover plate, and then the conductive column can be fixedly connected with the top end of the pole.
Example 3
As shown in fig. 7, in the present embodiment, a power battery liquid injection method is provided, liquid is injected through the pole assembly 1 integrated with the liquid injection hole described in embodiment 1, a liquid injection needle tube 4 penetrates through the sealing plug 14 and extends into the battery case, the liquid injection needle tube 4 includes a liquid injection tube 41 and an air extraction tube 42, and liquid injection and vacuum pumping are performed synchronously. According to the battery liquid injection method, the pole assembly integrated with the liquid injection hole is used for injecting liquid, the sealing plug can better avoid electrolyte from splashing, liquid injection and vacuumizing can be performed synchronously, the shell is kept in a negative pressure state all the time, the liquid injection time can be shortened, and the liquid injection efficiency can be improved.
In this embodiment, the length of the liquid injection pipe 41 extending into the battery case is longer than the length of the air exhaust pipe 42 extending into the battery case. The liquid injection pipe extends into the shell deeply, and the gas extraction pipe extends into the shell shallowly, so that the electrolyte can be prevented from being extracted in the synchronous vacuumizing and liquid injection processes.
In this embodiment, the liquid injection pipe 41 and the air exhaust pipe 42 are integrated into a whole structure, so that the sealing plug can be conveniently inserted or pulled out at the same time, and the liquid injection operation is convenient.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides an integrated utmost point post subassembly of annotating liquid hole, its characterized in that, locate utmost point post top including utmost point post and fixed leading electrical pillar, utmost point post with it is equipped with the notes liquid hole that link up to lead to correspond on the electrical pillar, still be equipped with the elastic rubber sealing plug that is used for blocking notes liquid hole on the utmost point post.
2. The pole post assembly integrated with the liquid injection hole as claimed in claim 1, wherein a counter bore groove corresponding to the position of the liquid injection hole is formed in the top end of the pole post, the cross-sectional area of the counter bore groove is larger than that of the liquid injection hole, and the sealing plug is arranged in the counter bore groove.
3. The pole assembly of the integrated injection hole of claim 2, wherein the sealing plug is provided with a boss, and the outer wall of the boss is matched with the inner wall of the injection hole.
4. A post assembly integrated with a pour spout according to any of claims 1 to 3, wherein said pour spout is circular, oval or polygonal in shape.
5. A post assembly integrated with a liquid injection hole according to any one of claims 1 to 3, wherein the post is made of copper or aluminum.
6. A power battery top cover, characterized in that, including the top cover plate, be equipped with two utmost point post subassemblies and explosion-proof valve subassembly on the top cover plate, two utmost point post subassemblies are located the both sides of explosion-proof valve subassembly respectively, and at least one utmost point post subassembly is the utmost point post subassembly of integrated notes liquid hole of any of claims 1-5.
7. The power cell header of claim 6, wherein the header plate is an injection molded header plate or an aluminum header plate.
8. A power battery liquid injection method is characterized in that liquid injection is carried out through the pole post assembly integrated with the liquid injection hole, the liquid injection needle tube penetrates through the sealing plug and extends into a battery shell, the liquid injection needle tube comprises a liquid injection tube and an air exhaust tube, and liquid injection and vacuum pumping are carried out synchronously.
9. The power battery liquid injection method according to claim 8, wherein the length of the liquid injection pipe extending into the battery shell is greater than the length of the air exhaust pipe extending into the battery shell.
10. The power battery liquid injection method according to claim 9, wherein the liquid injection pipe and the air extraction pipe are integrated into a whole structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010993279.3A CN111969177A (en) | 2020-09-21 | 2020-09-21 | Pole post assembly integrated with liquid injection hole, battery top cover and liquid injection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010993279.3A CN111969177A (en) | 2020-09-21 | 2020-09-21 | Pole post assembly integrated with liquid injection hole, battery top cover and liquid injection method |
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| Publication Number | Publication Date |
|---|---|
| CN111969177A true CN111969177A (en) | 2020-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010993279.3A Pending CN111969177A (en) | 2020-09-21 | 2020-09-21 | Pole post assembly integrated with liquid injection hole, battery top cover and liquid injection method |
Country Status (1)
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| CN (1) | CN111969177A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112886156A (en) * | 2021-03-15 | 2021-06-01 | 贵州中瑞丰泰新能源科技有限公司 | Battery structure for injecting liquid from end part of pole and battery liquid injection method |
| CN113394524A (en) * | 2021-06-30 | 2021-09-14 | 苏州清陶新能源科技有限公司 | Sealing assembly and battery negative pressure formation and secondary liquid supplementing method |
| CN113725566A (en) * | 2021-09-02 | 2021-11-30 | 深圳市精朗联合科技有限公司 | Efficient battery production process capable of achieving wiping-free liquid injection port and directly welding sealing sheet |
| CN113809443A (en) * | 2021-08-24 | 2021-12-17 | 贵阳比耐新能源科技有限公司 | Cylindrical aluminum shell battery and manufacturing method thereof |
| CN114583344A (en) * | 2022-03-11 | 2022-06-03 | 河南省鹏辉电源有限公司 | Battery cover plate and battery |
| CN114759321A (en) * | 2022-05-24 | 2022-07-15 | 厦门海辰新能源科技有限公司 | Battery and sealing method |
| CN115036655A (en) * | 2022-08-11 | 2022-09-09 | 深圳市精朗联合科技有限公司 | Lithium battery liquid injection machine and liquid injection mechanism |
| WO2023133853A1 (en) * | 2022-01-14 | 2023-07-20 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, electric device, method for manufacturing battery cell, and device |
| CN116613485A (en) * | 2023-07-17 | 2023-08-18 | 宁德时代新能源科技股份有限公司 | Liquid injection method and liquid injection system for battery |
| CN117335107A (en) * | 2023-11-10 | 2024-01-02 | 深圳眼千里科技有限公司 | Liquid injection processing technology method for battery cell and battery cell |
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| CN212695232U (en) * | 2020-09-21 | 2021-03-12 | 厦门海辰新能源科技有限公司 | Pole post assembly integrated with liquid injection hole and battery top cover |
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2020
- 2020-09-21 CN CN202010993279.3A patent/CN111969177A/en active Pending
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112886156B (en) * | 2021-03-15 | 2023-10-24 | 贵州中瑞丰泰新能源科技有限公司 | Battery structure capable of injecting liquid from end part of pole and battery liquid injection method |
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| CN113394524A (en) * | 2021-06-30 | 2021-09-14 | 苏州清陶新能源科技有限公司 | Sealing assembly and battery negative pressure formation and secondary liquid supplementing method |
| CN113394524B (en) * | 2021-06-30 | 2023-11-10 | 苏州清陶新能源科技有限公司 | Sealing assembly and battery negative pressure formation and secondary fluid infusion method |
| CN113809443A (en) * | 2021-08-24 | 2021-12-17 | 贵阳比耐新能源科技有限公司 | Cylindrical aluminum shell battery and manufacturing method thereof |
| CN113725566A (en) * | 2021-09-02 | 2021-11-30 | 深圳市精朗联合科技有限公司 | Efficient battery production process capable of achieving wiping-free liquid injection port and directly welding sealing sheet |
| WO2023133853A1 (en) * | 2022-01-14 | 2023-07-20 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, electric device, method for manufacturing battery cell, and device |
| CN114583344A (en) * | 2022-03-11 | 2022-06-03 | 河南省鹏辉电源有限公司 | Battery cover plate and battery |
| CN114759321A (en) * | 2022-05-24 | 2022-07-15 | 厦门海辰新能源科技有限公司 | Battery and sealing method |
| CN114759321B (en) * | 2022-05-24 | 2024-03-08 | 厦门海辰储能科技股份有限公司 | Battery and sealing method |
| CN115036655A (en) * | 2022-08-11 | 2022-09-09 | 深圳市精朗联合科技有限公司 | Lithium battery liquid injection machine and liquid injection mechanism |
| CN116613485A (en) * | 2023-07-17 | 2023-08-18 | 宁德时代新能源科技股份有限公司 | Liquid injection method and liquid injection system for battery |
| CN116613485B (en) * | 2023-07-17 | 2023-12-15 | 宁德时代新能源科技股份有限公司 | Liquid injection method and liquid injection system for battery |
| CN117335107A (en) * | 2023-11-10 | 2024-01-02 | 深圳眼千里科技有限公司 | Liquid injection processing technology method for battery cell and battery cell |
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Address after: 361000 201-1, complex building 5, No. 11, Butang Middle Road, torch high tech Zone (Tongxiang) industrial base, Xiamen, Fujian Applicant after: Xiamen Haichen Energy Storage Technology Co.,Ltd. Address before: 361000 201-1, complex building 5, No. 11, Butang Middle Road, torch high tech Zone (Tongxiang) industrial base, Xiamen, Fujian Applicant before: Xiamen Haichen New Energy Technology Co.,Ltd. |