CN112122790A - Processing method and system for explosion-proof line of lithium battery explosion-proof valve - Google Patents
Processing method and system for explosion-proof line of lithium battery explosion-proof valve Download PDFInfo
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- CN112122790A CN112122790A CN202010771775.4A CN202010771775A CN112122790A CN 112122790 A CN112122790 A CN 112122790A CN 202010771775 A CN202010771775 A CN 202010771775A CN 112122790 A CN112122790 A CN 112122790A
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- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
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- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/04—Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
- B23K26/046—Automatically focusing the laser beam
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/062—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam
- B23K26/0622—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam by shaping pulses
- B23K26/0624—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam by shaping pulses using ultrashort pulses, i.e. pulses of 1ns or less
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
- B23K26/0648—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising lenses
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/082—Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
A processing method of an explosion-proof line of an explosion-proof valve of a lithium battery comprises the following steps: the laser emitter generates a laser beam; the beam expander reduces the divergence angle of the light beams of the laser beams emitted in parallel, increases the diameter of the light beams and reduces the diameter of the focused light spots; the laser galvanometer deflects the direction of the emitted laser beam to change the transmission direction of the laser beam; the focusing lens focuses the laser beam with the changed direction, so that the power density of the laser is increased, and the laser acts on the lithium battery explosion-proof valve to be processed; according to the technical requirements of customers on the explosion-proof line of the lithium battery explosion-proof valve, laser pulse width, power and frequency parameters are set, so that the lithium battery explosion-proof valve is etched by laser, and the explosion-proof line of the lithium battery explosion-proof valve required by the customers is generated. The invention solves the problems that the explosion-proof valve is deformed due to inconsistent depth of the punched explosion-proof line when the explosion-proof valve is processed by the traditional punching indentation method. The invention has no material consumption, saves resources, reduces processing cost and reduces pollution.
Description
Technical Field
The invention relates to the technical field of processing of explosion-proof lines of lithium battery explosion-proof valves, in particular to a method and a system for processing explosion-proof lines of lithium battery explosion-proof valves.
Background
Lithium batteries can generate a large amount of gas and liquid during charging and discharging processes, and accordingly generate a large amount of pressure. If the water is not released in time, the deformation, leakage and even explosion of the shell can be caused. The safety problem of the lithium battery always restricts the industrialization process of the power battery. At present, the lithium battery mainly adopts nicks, welding rupture membranes and other modes as an explosion-proof device of the lithium battery, when the temperature of the battery rises, gas inside the battery expands, the internal pressure of the battery increases, and when the pressure increases to a certain degree, the nicks or the rupture membranes are desoldered and broken, and the gas is discharged and decompressed, so that the explosion of the battery is avoided. At present along with the lithium cell develops towards the direction that the volume is littleer capacity is bigger, and traditional punching press nick method adds man-hour to explosion-proof valve, can make the explosion-proof line degree of depth of punching press inconsistent and lead to explosion-proof valve to warp, and explosion-proof line degree of depth inconsistent can lead to bursting pressure unstability and influence the safe new ability of lithium cell, and the deformation of explosion-proof valve can influence the battery assembly of producing the line rear end and form the defective products.
Disclosure of Invention
In view of the above problems, the present invention has been made to provide a method and system for processing an explosion-proof wire for an explosion-proof valve of a lithium battery, which overcome or at least partially solve the above problems.
A processing method of an explosion-proof line of an explosion-proof valve of a lithium battery is characterized by comprising the following steps:
the laser transmitter generates a laser beam and transmits the generated laser beam to the beam expander in parallel;
the beam expander reduces the divergence angle of the light beams of the laser beams emitted in parallel, increases the diameter of the light beams, reduces the diameter of the focused light spots, and transmits the laser beams processed by the beam expander to the laser galvanometer;
the laser galvanometer deflects the emitted laser beam direction to change the laser beam emission direction;
the focusing lens focuses the laser beam with the changed direction, so that the power density of the laser is increased, and the laser acts on the lithium battery explosion-proof valve to be processed;
according to the depth requirement of a customer on the explosion-proof line of the lithium battery explosion-proof valve, the laser pulse width, power and frequency are set, so that the laser is used for cutting the lithium battery explosion-proof valve to generate the explosion-proof line of the lithium battery explosion-proof valve with the depth required by the customer.
Further, the laser emitter generates a laser wavelength of 1064 nm.
Furthermore, the laser emitter adopts an ultrashort pulse laser, and the pulse width range is 1 ps-200 ns.
Further, the beam expander expands the beam of the laser beam emitted in parallel by 4 times.
Further, the focal length of the focusing lens is set to 160 mm.
Further, when laser acts on the lithium battery explosion-proof valve to be processed, the water cooler is connected with the laser, the laser is cooled through the water cooler, and the temperature of the laser is prevented from being too high.
Further, the format of the focusing lens is 110 × 110 mm.
Further, when the laser acts on the lithium battery explosion-proof valve, the lithium battery electromagnetic valve is fixed by a fixing device.
The invention discloses a processing system of an explosion-proof line of an explosion-proof valve of a lithium battery, which comprises: the device comprises a laser transmitter, a beam expander, a laser galvanometer, a focusing lens and a lithium battery explosion-proof valve to be processed; wherein:
the laser transmitter is used for generating laser beams and transmitting the generated laser beams to the beam expander in parallel;
the beam expander is used for increasing the divergence angle of the light beams of the laser beams emitted in parallel, increasing the diameter of the light beams, reducing the diameter of the focused light spots and emitting the laser beams processed by the beam expander to the laser galvanometer;
the laser galvanometer deflects the direction of the emitted laser beam to change the emission direction of the laser beam;
and the lithium battery explosion-proof valve to be processed receives the emitted laser, and generates an explosion-proof line meeting the requirement through laser etching.
The technical scheme provided by the embodiment of the invention has the beneficial effects that at least: according to the processing method and system for the explosion-proof line of the lithium battery explosion-proof valve, in the manufacturing process of the explosion-proof line of the lithium battery explosion-proof valve, laser is directly irradiated on the surface of the explosion-proof valve to realize etching of the explosion-proof valve, so that a groove is generated, ultrashort pulses are adopted to enable the surface of the explosion-proof valve not to be affected by heat easily, and various kinds of explosion-proof lines are etched through the mechanism. The method comprises the steps of selecting a picosecond optical fiber laser with the wavelength of 1064nm, scanning in a large width through a scanning laser galvanometer, and setting reasonable laser parameters for working. Compared with the traditional stamping process, the process has the advantages of no material consumption, resource saving, processing cost reduction and pollution reduction. In addition, the optical beam expanding system with the power of 4 times and the focusing lens with the diameter of 160mm are selected, so that the laser power density acting on the surface of the material is high, the efficiency can be improved, and the etching effect is ensured.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a flow chart of a processing method of an explosion-proof line of an explosion-proof valve of a lithium battery in embodiment 1 of the invention;
fig. 2 is a structural diagram of a processing system of an explosion-proof line of an explosion-proof valve of a lithium battery in embodiment 2 of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In order to solve the problems that the depths of punched explosion-proof lines are inconsistent and the explosion-proof valves are deformed when the explosion-proof lines of the explosion-proof valves are processed by a traditional punching indentation method in the prior art, the embodiment of the invention provides a processing method and a system of the explosion-proof lines of the explosion-proof valves of lithium batteries.
Example 1
The embodiment discloses a processing method of an explosion-proof line of an explosion-proof valve of a lithium battery, which comprises the following steps:
s100, generating a laser beam by a laser transmitter, and transmitting the generated laser beam to a beam expander in parallel; in the present embodiment, an ultra-short pulse fiber laser is used, preferably having a laser wavelength of 1064nm and a pulse width in the range of 1ps to 200ns, and is used to reduce the thermal influence on the surface of the explosion-proof valve and prevent the deformation thereof.
S200, the beam expander reduces the divergence angle of the light beam of the laser beam emitted in parallel, increases the diameter of the light beam, reduces the diameter of the focused light spot, and emits the laser beam processed by the beam expander to the laser galvanometer.
In this embodiment, a preferred scheme is to expand the beam of the laser beam emitted in parallel by 4 times, compress the divergence angle of the beam, increase the diameter of the beam, and reduce the diameter of the focused spot, thereby obtaining a higher power density. Carry out 4 times through the beam expander and expand the beam, can also reduce the laser power density on the scanning laser galvanometer, prevent that the laser galvanometer from being broken.
S300, deflecting the emitted laser beam direction by the laser vibrating mirror to change the emitting direction of the laser beam.
The laser galvanometer consists of an X-Y optical scanning head, an electronic driving amplifier and an optical reflecting mirror. The signal provided by the computer controller drives the optical scanning head through the drive amplifier circuit, thereby controlling the deflection of the laser beam in the X-Y plane. In the embodiment, laser is deflected to the lithium battery explosion-proof valve to be processed by setting laser galvanometer parameters.
S400, the focusing lens focuses the laser beam with the changed direction, so that the laser power density is increased, and the laser is acted on the lithium battery explosion-proof valve to be processed.
Preferably, the focal length of the focusing lens is selected to be F160 mm, and by using this focal length, the power density of the output laser can be made large, and the preferred form of the focusing lens is 110 × 110 mm. In the actual production process, proper lenses are selected according to different product sizes.
S500, setting parameters of laser pulse width, power and frequency according to the depth requirement of a customer on the explosion-proof line of the lithium battery explosion-proof valve, and enabling the laser to cut the lithium battery explosion-proof valve to generate the explosion-proof line of the lithium battery explosion-proof valve with the depth required by the customer.
Preferably, in order to prevent the temperature of the laser from being too high in the machining process, when laser acts on the lithium battery explosion-proof valve to be machined, the water cooler is connected with the laser, and the laser is cooled through the water cooler.
Preferably, in order to prevent the lithium battery explosion-proof valve from sliding in the machining process, the lithium battery explosion-proof valve can be fixed by a fixing device, and the explosion-proof valve is fixed at a required position by a vacuum pump and a suitable clamp.
According to the processing system of the explosion-proof line of the lithium battery explosion-proof valve, in the manufacturing process of the explosion-proof line of the lithium battery explosion-proof valve, laser is directly irradiated on the surface of the explosion-proof valve to etch the explosion-proof valve, so that a groove is generated, ultrashort pulses are adopted to enable the surface of the explosion-proof valve not to be affected by heat easily, and various kinds of explosion-proof lines are etched through the mechanism. The method comprises the steps of selecting a picosecond optical fiber laser with the wavelength of 1064nm, scanning in a large width through a scanning laser galvanometer, and setting reasonable laser parameters for working. Compared with the traditional stamping process, the process has the advantages of no material consumption, resource saving, processing cost reduction and pollution reduction. In addition, the optical beam expanding system with the power of 4 times and the focusing lens with the diameter of 160mm are selected, so that the laser power density acting on the surface of the material is high, the efficiency can be improved, and the etching effect is ensured.
Example 2
The embodiment discloses a system for processing explosion-proof line of lithium battery explosion-proof valve, include: the device comprises a laser transmitter 1, a beam expander 2, a laser galvanometer 3, a focusing lens 4 and a lithium battery explosion-proof valve 5 to be processed; wherein:
the laser transmitter 1 is used for generating laser beams and transmitting the generated laser beams to the beam expander 2 in parallel; preferably, an ultrashort pulse fiber laser emitting machine is adopted, preferably, the laser wavelength is 1064nm, the pulse width range is 1 ps-200 ns, and the ultrashort pulse laser is used for reducing the thermal influence on the surface of the explosion-proof valve and preventing the surface from deforming.
The beam expander 2 is used for reducing the divergence angle of the light beams of the laser beams emitted in parallel, increasing the diameter of the light beams, reducing the diameter of the focused light spots and emitting the laser beams processed by the beam expander to the laser galvanometer 3;
the preferred scheme is to expand the beam of the laser beam emitted in parallel by 4 times, compress the divergence angle of the beam, increase the diameter of the beam, reduce the diameter of the focused light spot, and further obtain higher power density. And the laser power density on the scanning laser galvanometer can be reduced, and the laser galvanometer is prevented from being damaged.
A laser oscillating mirror 3 for deflecting the emitted laser beam to change the emission direction of the laser beam;
the focusing lens 4 is used for focusing the laser beam with the changed direction to increase the power density of the laser and apply the laser to the lithium battery explosion-proof valve to be processed 5;
preferably, the focal length of the focusing lens is selected to be F160 mm, and by using this focal length, the power density of the output laser can be made large, and the preferred form of the focusing lens is 110 × 110 mm. In the actual production process, proper lenses are selected according to different product sizes.
And the lithium battery explosion-proof valve 5 to be processed receives the emitted laser, and generates an explosion-proof line meeting the requirement through laser etching.
According to the processing system of the explosion-proof line of the lithium battery explosion-proof valve, in the manufacturing process of the explosion-proof line of the lithium battery explosion-proof valve, laser is directly irradiated on the surface of the explosion-proof valve to etch the explosion-proof valve, so that a groove is generated, ultrashort pulses are adopted to enable the surface of the explosion-proof valve not to be affected by heat easily, and various kinds of explosion-proof lines are etched through the mechanism. The method comprises the steps of selecting a picosecond optical fiber laser with the wavelength of 1064nm, scanning in a large width through a scanning laser galvanometer, and setting reasonable laser parameters for working. Compared with the traditional stamping process, the process has the advantages of no material consumption, resource saving, processing cost reduction and pollution reduction. In addition, the optical beam expanding system with the power of 4 times and the focusing lens with the diameter of 160mm are selected, so that the laser power density acting on the surface of the material is high, the efficiency can be improved, and the etching effect is ensured.
It should be understood that the specific order or hierarchy of steps in the processes disclosed is an example of exemplary approaches. Based upon design preferences, it is understood that the specific order or hierarchy of steps in the processes may be rearranged without departing from the scope of the present disclosure. The accompanying method claims present elements of the various steps in a sample order, and are not intended to be limited to the specific order or hierarchy presented.
In the foregoing detailed description, various features are grouped together in a single embodiment for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments of the subject matter require more features than are expressly recited in each claim. Rather, as the following claims reflect, invention lies in less than all features of a single disclosed embodiment. Thus, the following claims are hereby expressly incorporated into the detailed description, with each claim standing on its own as a separate preferred embodiment of the invention.
Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. The ASIC may reside in a user terminal. Of course, the processor and the storage medium may reside as discrete components in a user terminal.
For a software implementation, the techniques described herein may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The software codes may be stored in memory units and executed by processors. The memory unit may be implemented within the processor or external to the processor, in which case it can be communicatively coupled to the processor via various means as is known in the art.
What has been described above includes examples of one or more embodiments. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the aforementioned embodiments, but one of ordinary skill in the art may recognize that many further combinations and permutations of various embodiments are possible. Accordingly, the embodiments described herein are intended to embrace all such alterations, modifications and variations that fall within the scope of the appended claims. Furthermore, to the extent that the term "includes" is used in either the detailed description or the claims, such term is intended to be inclusive in a manner similar to the term "comprising" as "comprising" is interpreted when employed as a transitional word in a claim. Furthermore, any use of the term "or" in the specification of the claims is intended to mean a "non-exclusive or".
Claims (9)
1. A processing method of an explosion-proof line of an explosion-proof valve of a lithium battery is characterized by comprising the following steps:
the laser transmitter generates a laser beam and transmits the generated laser beam to the beam expander in parallel;
the beam expander reduces the divergence angle of the beams of the laser beams emitted in parallel, increases the diameter of the beams, reduces the diameter of the focused light spots, and emits the laser beams processed by the beam expander to the laser galvanometer;
the laser galvanometer deflects the direction of the emitted laser beam to change the transmission direction of the laser beam;
the focusing lens focuses the laser beam with the changed direction, so that the power density of the laser is increased, and the laser acts on the lithium battery explosion-proof valve to be processed;
according to the technical requirements of customers on the explosion-proof line of the lithium battery explosion-proof valve, laser pulse width, power and frequency parameters are set, so that the lithium battery explosion-proof valve is etched by laser, and the explosion-proof line of the lithium battery explosion-proof valve required by the customers is generated.
2. The method for processing an explosion-proof line of an explosion-proof valve for a lithium battery as claimed in claim 1, wherein the laser emitter generates a laser wavelength of 1064 nm.
3. The method for processing the explosion-proof line of the explosion-proof valve of the lithium battery as claimed in claim 1, wherein the laser emitter is an ultrashort pulse laser with a pulse width ranging from 1ps to 200 ns.
4. The method for processing an explosion-proof line of an explosion-proof valve for a lithium battery as claimed in claim 1, wherein the beam expander expands the beam of the laser beam emitted in parallel by 4 times.
5. The method for manufacturing an explosion-proof valve wire for a lithium battery as claimed in claim 1, wherein the focal length of the focusing lens is set to 160 mm.
6. The method for processing the explosion-proof line of the lithium battery explosion-proof valve as claimed in claim 1, wherein when laser is applied to the lithium battery explosion-proof valve to be processed, the water chiller is connected with the laser, and the laser is cooled by the water chiller, so as to prevent the laser from being over-heated.
7. The method for manufacturing an explosion-proof valve wire for a lithium battery as claimed in claim 1, wherein the focusing lens has a width of 110 x 110 mm.
8. The method for processing the explosion-proof valve wire of the lithium battery as claimed in claim 1, wherein the lithium battery explosion-proof valve is fixed by a fixing means when the laser is applied to the lithium battery explosion-proof valve.
9. The utility model provides a system of processing of explosion-proof valve explosion-proof line of lithium cell which characterized in that includes: the device comprises a laser transmitter, a beam expander, a laser galvanometer, a focusing lens and a lithium battery explosion-proof valve to be processed; wherein:
the laser transmitter is used for generating laser beams and transmitting the generated laser beams to the beam expander in parallel;
the beam expander is used for increasing the divergence angle of the light beams of the laser beams emitted in parallel, increasing the diameter of the light beams, reducing the diameter of the focused light spots and transmitting the laser beams processed by the beam expander to the laser galvanometer;
the laser galvanometer deflects the transmitted laser beam direction to change the laser beam emission direction;
the focusing lens is used for focusing the laser beam with the changed direction to increase the power density of the laser and apply the laser to the lithium battery explosion-proof valve to be processed;
and the lithium battery explosion-proof valve to be processed receives the emitted laser, and generates an explosion-proof line meeting the requirement through laser etching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010771775.4A CN112122790A (en) | 2020-08-04 | 2020-08-04 | Processing method and system for explosion-proof line of lithium battery explosion-proof valve |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010771775.4A CN112122790A (en) | 2020-08-04 | 2020-08-04 | Processing method and system for explosion-proof line of lithium battery explosion-proof valve |
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| CN202010771775.4A Pending CN112122790A (en) | 2020-08-04 | 2020-08-04 | Processing method and system for explosion-proof line of lithium battery explosion-proof valve |
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Cited By (3)
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| CN114226359A (en) * | 2021-12-10 | 2022-03-25 | 武汉凌云光电科技有限责任公司 | Cleaning system and cleaning method for removing pollutants from battery test probe |
| CN114497458A (en) * | 2021-12-31 | 2022-05-13 | 深圳华工新能源装备有限公司 | Lithium ion battery pole piece surface treatment method and system |
| CN118455756A (en) * | 2024-07-10 | 2024-08-09 | 北京卓镭激光技术有限公司 | Wafer marking system and marking method |
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| CN118455756A (en) * | 2024-07-10 | 2024-08-09 | 北京卓镭激光技术有限公司 | Wafer marking system and marking method |
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Address after: Room a1002, 10 / F, building a, building 3, Longgang Tian'an Digital Innovation Park, intersection of Qinglin West Road and Huangge North Road, Longcheng street, Longgang District, Shenzhen City, Guangdong Province Applicant after: Shenzhen Huagong new energy equipment Co.,Ltd. Address before: Room a1002, 10 / F, building a, building 3, Longgang Tian'an Digital Innovation Park, intersection of Qinglin West Road and Huangge North Road, Longcheng street, Longgang District, Shenzhen City, Guangdong Province Applicant before: SHENZHEN HUAGONG LASER EQUIPMENT Co.,Ltd. |
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Application publication date: 20201225 |