CN110900001A - High-efficiency laser pole piece cutting method - Google Patents
High-efficiency laser pole piece cutting method Download PDFInfo
- Publication number
- CN110900001A CN110900001A CN201911251454.5A CN201911251454A CN110900001A CN 110900001 A CN110900001 A CN 110900001A CN 201911251454 A CN201911251454 A CN 201911251454A CN 110900001 A CN110900001 A CN 110900001A
- Authority
- CN
- China
- Prior art keywords
- pole piece
- cutting
- cut
- laser
- pole
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention relates to the technical field of pole piece cutting, in particular to a high-efficiency laser pole piece cutting method, which comprises the following steps: step 1, cutting a pole piece base material into a first notch through laser cutting, and cutting the first notch into a first pole piece and a semi-finished second pole piece; step 2, cutting a second blade from one end, close to the first blade, of the second pole piece of the semi-finished product through laser cutting to form a second pole piece; compared with the traditional pole piece slitting mode, the pole piece slitting machine has the advantages that the process flow is saved, and the material cost is saved under the condition of improving the production efficiency.
Description
Technical Field
The invention relates to the technical field of pole piece cutting, in particular to a high-efficiency laser pole piece cutting method.
Background
The lithium ion battery is a new generation of green high-energy battery with excellent performance, and has become one of the key points of high and new technology development. The lithium ion battery has the following characteristics: high voltage, high capacity, low consumption, no memory effect, no public hazard, small volume, small internal resistance, less self-discharge and more cycle times. Because of the above characteristics, lithium ion batteries have been applied to various civil and military fields such as mobile phones, notebook computers, video cameras, digital cameras, and the like.
The pole piece is used as an important component of the lithium battery and plays an important role in the performance of the battery. The pole piece is manufactured by coating the two side surfaces of the base material with the pole powder material, and die-cutting the coated base material to obtain the pole piece with the required size and shape.
In the prior art, chinese patent application No. CN201710547780.5 discloses a laser cutting module for pole piece molding, which includes a frame, and a multi-section cutting roller and a laser light source that are disposed on the frame, wherein the multi-section cutting roller includes two or more rotating rollers and two or more stationary rollers, the rotating rollers and the stationary rollers are coaxial and have the same diameter, and are axially distributed at intervals, the stationary rollers are provided with grooves, and the rotating rollers can rotate relative to the stationary rollers; the laser light source may emit a laser beam toward the groove. The multi-section cutting roller is matched with the laser light source, so that a plurality of pole pieces can be formed at the same time, and the pole pieces are formed without involving a plurality of stations, so that the transfer, management and intermediate storage costs are reduced, and the production efficiency is improved; as shown in fig. 1, a large amount of pole piece materials are wasted in the process of cutting the pole piece base material, and the central part of the pole piece base material needs to be cut off after cutting to form the pole piece, so that the workload of pole piece manufacturing is greatly increased, the production efficiency is reduced, and the material cost and the waste of resources are increased.
Disclosure of Invention
In order to solve the problems, the invention provides a high-efficiency laser pole piece cutting method which saves more process flow compared with the traditional pole piece cutting method and saves material cost under the condition of improving production efficiency.
The technical scheme adopted by the invention is as follows: a high-efficiency laser pole piece cutting method comprises the following steps:
step 1, cutting a pole piece base material into a first notch through laser cutting, and cutting the first notch into a first pole piece and a semi-finished second pole piece;
and 2, cutting a second blade from one end, close to the first blade, of the second pole piece of the semi-finished product through laser cutting to form a second pole piece.
In step 1, the pole piece substrate includes a first pole piece region and a second pole piece region, a cutting region is disposed between the first pole piece region and the second pole piece region, and the first cut and the second cut are cut in the cutting region by laser.
The further improvement of the scheme is that in the step 1, a first cut is cut out by laser cutting after the pole piece base material is unreeled and stretched.
In step 1, the first notch cuts out the first tab connected to the first pole piece during the process of cutting out the first pole piece.
The further improvement of the scheme is that in the step 1, the first pole piece is rolled after the first incision is cut into the first pole piece.
In step 2, a second cut is cut by laser cutting after the second pole piece of the semi-finished product is unreeled and stretched.
In step 2, the second notch cuts out the second tab connected to the second pole piece during the process of cutting out the second pole piece.
In step 2, the second pole piece is wound after the second slit is cut into the second pole piece.
The invention has the beneficial effects that:
cutting the central area of the pole piece substrate by adopting a laser cutting mode, firstly cutting the central area through a first cut to form a first pole piece, rolling the first pole piece after the first pole piece is formed, and cutting the rest part of the first pole piece into a semi-finished second pole piece after the first pole piece is formed, further cutting the rest part of the second pole piece to form a formed second pole piece through laser cutting at the position, close to the first cut, of the second pole piece, and then rolling the second pole piece; compared with the traditional pole piece cutting mode, the cutting method has higher efficiency, saves pole piece raw materials, can save the process flow of pole piece manufacturing, saves material cost and improves production efficiency.
Compared with the traditional pole piece slitting mode, the pole piece slitting machine has the advantages that the process flow is saved, and the material cost is saved under the condition of improving the production efficiency.
Drawings
FIG. 1 is a schematic diagram of a conventional pole piece cutting process;
FIG. 2 is a schematic diagram of a pole piece cutting process according to the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
As shown in fig. 1-2, a method for high-efficiency laser pole-cutting comprises the following steps:
step 1, cutting a pole piece base material into a first notch through laser cutting, and cutting the first notch into a first pole piece and a semi-finished second pole piece;
and 2, cutting a second blade from one end, close to the first blade, of the second pole piece of the semi-finished product through laser cutting to form a second pole piece.
In the step 1, the pole piece substrate comprises a first pole piece area and a second pole piece area, a cutting area is arranged between the first pole piece area and the second pole piece area, the first cut and the second cut are cut in the cutting area through laser, a plurality of areas are adopted for distinguishing, in the cutting process, the pole piece is directly cut in the cutting area, meanwhile, coating can be carried out in the first pole piece area and the second pole piece area, and the cutting area is reserved for being cut into the first pole piece and the second pole piece.
In step 1, a first cut is cut out through laser cutting after the pole piece base material is unreeled and stretched, and cutting is carried out after stretching, and the further improvement is that, in step 2, a second cut is cut out through laser cutting after the semi-finished second pole piece is unreeled and stretched, so that the pole piece can be cut more accurately, phenomena such as cutter burning and the like can not occur, and the cutting effect is improved.
In the step 1, the first pole lug connected with the first pole piece is cut out simultaneously by the first notch in the process of cutting out the first pole piece, and the further improvement is that in the step 2, the second pole lug connected with the second pole piece is cut out simultaneously by the second notch in the process of cutting out the second pole piece, and the pole lug is directly formed in the cutting process, so that the subsequent cutting process of the pole lug is saved, and the production efficiency is further improved.
In step 1, the first pole piece is rolled after the first incision is cut into the first pole piece, and the further improvement is that in step 2, the second pole piece is rolled after the second incision is cut into the second pole piece, and the pole piece can be directly rolled after laser forming so as to be used for subsequent slicing.
Cutting the central area of the pole piece substrate by adopting a laser cutting mode, firstly cutting the central area through a first cut to form a first pole piece, rolling the first pole piece after the first pole piece is formed, and cutting the rest part of the first pole piece into a semi-finished second pole piece after the first pole piece is formed, further cutting the rest part of the second pole piece to form a formed second pole piece through laser cutting at the position, close to the first cut, of the second pole piece, and then rolling the second pole piece; compared with the traditional pole piece cutting mode, the cutting method has higher efficiency, saves pole piece raw materials, can save the process flow of pole piece manufacturing, saves material cost and improves production efficiency.
Compared with the traditional pole piece slitting mode, the pole piece slitting machine has the advantages that the process flow is saved, and the material cost is saved under the condition of improving the production efficiency.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. A high-efficiency laser pole piece cutting method is characterized in that: the method comprises the following steps:
step 1, cutting a pole piece base material into a first notch through laser cutting, and cutting the first notch into a first pole piece and a semi-finished second pole piece;
and 2, cutting a second blade from one end, close to the first blade, of the second pole piece of the semi-finished product through laser cutting to form a second pole piece.
2. The method for high-efficiency laser pole-cutting of claim 1, wherein the method comprises the following steps: in the step 1, the pole piece substrate comprises a first pole piece area and a second pole piece area, a cutting area is arranged between the first pole piece area and the second pole piece area, and the first cut and the second cut are cut in the cutting area through laser.
3. The method for high-efficiency laser pole-cutting of claim 1, wherein the method comprises the following steps: in the step 1, a first cut is cut out through laser cutting after the pole piece base material is unreeled and stretched.
4. The method for high-efficiency laser pole-cutting of claim 1, wherein the method comprises the following steps: in the step 1, the first notch cuts out the first tab connected with the first pole piece simultaneously in the process of cutting out the first pole piece.
5. The method for high-efficiency laser pole-cutting of claim 1, wherein the method comprises the following steps: in the step 1, the first pole piece is rolled after the first cut is cut into the first pole piece.
6. The method for high-efficiency laser pole-cutting of claim 1, wherein the method comprises the following steps: and in the step 2, cutting a second cut by laser cutting after unreeling and stretching the second pole piece of the semi-finished product.
7. The method for high-efficiency laser pole-cutting of claim 1, wherein the method comprises the following steps: in the step 2, the second notch cuts out the second tab connected with the second pole piece during the process of cutting out the second pole piece.
8. The method for high-efficiency laser pole-cutting of claim 1, wherein the method comprises the following steps: in the step 2, the second pole piece is rolled after the second cut is cut into the second pole piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911251454.5A CN110900001A (en) | 2019-12-09 | 2019-12-09 | High-efficiency laser pole piece cutting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911251454.5A CN110900001A (en) | 2019-12-09 | 2019-12-09 | High-efficiency laser pole piece cutting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110900001A true CN110900001A (en) | 2020-03-24 |
Family
ID=69823618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911251454.5A Pending CN110900001A (en) | 2019-12-09 | 2019-12-09 | High-efficiency laser pole piece cutting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110900001A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114976516A (en) * | 2022-05-31 | 2022-08-30 | 无锡先导智能装备股份有限公司 | Lug forming method, device and system |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5956360A (en) * | 1982-09-24 | 1984-03-31 | Matsushita Electric Ind Co Ltd | Manufacturing method of lead storage battery |
| CN102315425A (en) * | 2011-06-13 | 2012-01-11 | 奇瑞汽车股份有限公司 | Method for manufacturing lithium battery negative electrode plate |
| CN205057308U (en) * | 2015-10-12 | 2016-03-02 | 深圳市海目星激光科技有限公司 | High -speed high accuracy utmost point ear cutting equipment based on vision -guided |
| CN106025185A (en) * | 2016-07-06 | 2016-10-12 | 广东亿鑫丰智能装备股份有限公司 | Battery pole piece coating method |
| CN106299241A (en) * | 2016-08-22 | 2017-01-04 | 中航锂电（洛阳）有限公司 | A kind of pole piece, the manufacture method of battery core and coiled battery battery core, pole piece |
| CN107146876A (en) * | 2017-04-27 | 2017-09-08 | 重庆鲁岳新能源科技有限公司 | A kind of anode pole piece forming method of lithium-ion-power cell |
| CN108565387A (en) * | 2018-03-21 | 2018-09-21 | 中航锂电技术研究院有限公司 | A kind of lithium ion battery cell lug laser formation technique |
| CN208352427U (en) * | 2018-05-24 | 2019-01-08 | 银隆新能源股份有限公司 | A kind of battery pole piece and lithium ion battery of multi pole ears |
| CN208358050U (en) * | 2018-04-18 | 2019-01-11 | 广东亿鑫丰智能装备股份有限公司 | A kind of round roller formula laser die cutting device |
| CN109848583A (en) * | 2019-04-02 | 2019-06-07 | 广东海中新能源设备股份有限公司 | A kind of battery pole piece of multicoat band cuts molding machine |
| CN209001018U (en) * | 2018-09-21 | 2019-06-18 | 福建巨电新能源股份有限公司 | A kind of double apparatus for coating in lithium ion monopole ear position |
-
2019
- 2019-12-09 CN CN201911251454.5A patent/CN110900001A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5956360A (en) * | 1982-09-24 | 1984-03-31 | Matsushita Electric Ind Co Ltd | Manufacturing method of lead storage battery |
| CN102315425A (en) * | 2011-06-13 | 2012-01-11 | 奇瑞汽车股份有限公司 | Method for manufacturing lithium battery negative electrode plate |
| CN205057308U (en) * | 2015-10-12 | 2016-03-02 | 深圳市海目星激光科技有限公司 | High -speed high accuracy utmost point ear cutting equipment based on vision -guided |
| CN106025185A (en) * | 2016-07-06 | 2016-10-12 | 广东亿鑫丰智能装备股份有限公司 | Battery pole piece coating method |
| CN106299241A (en) * | 2016-08-22 | 2017-01-04 | 中航锂电（洛阳）有限公司 | A kind of pole piece, the manufacture method of battery core and coiled battery battery core, pole piece |
| CN107146876A (en) * | 2017-04-27 | 2017-09-08 | 重庆鲁岳新能源科技有限公司 | A kind of anode pole piece forming method of lithium-ion-power cell |
| CN108565387A (en) * | 2018-03-21 | 2018-09-21 | 中航锂电技术研究院有限公司 | A kind of lithium ion battery cell lug laser formation technique |
| CN208358050U (en) * | 2018-04-18 | 2019-01-11 | 广东亿鑫丰智能装备股份有限公司 | A kind of round roller formula laser die cutting device |
| CN208352427U (en) * | 2018-05-24 | 2019-01-08 | 银隆新能源股份有限公司 | A kind of battery pole piece and lithium ion battery of multi pole ears |
| CN209001018U (en) * | 2018-09-21 | 2019-06-18 | 福建巨电新能源股份有限公司 | A kind of double apparatus for coating in lithium ion monopole ear position |
| CN109848583A (en) * | 2019-04-02 | 2019-06-07 | 广东海中新能源设备股份有限公司 | A kind of battery pole piece of multicoat band cuts molding machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114976516A (en) * | 2022-05-31 | 2022-08-30 | 无锡先导智能装备股份有限公司 | Lug forming method, device and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111668451B (en) | Preparation method of pole piece for winding type multi-pole lug battery cell, pole piece and battery cell | |
| CN208690415U (en) | A kind of flexible lithium ion battery | |
| CN207765536U (en) | It is a kind of for the pole piece of coiled lithium ion battery, battery core and lithium ion battery | |
| CN108550896B (en) | Assembling method of full-lug winding cylindrical lithium ion battery | |
| CN104157912B (en) | The preparation method of battery core | |
| CN104362385B (en) | Method for preparing winding cell of lithium ion battery | |
| CN105470558A (en) | Cylindrical lithium ion battery and manufacturing method therefor | |
| CN108461811B (en) | Pole piece and battery cell for coiled lithium ion battery | |
| KR102026126B1 (en) | Device for Manufacturing Electrode Comprising Notching Roller | |
| CN105261781B (en) | Electrochemical cell and preparation method thereof | |
| CN104167553A (en) | Square winding type battery pole piece and manufacturing technology thereof | |
| CN104051705A (en) | Efficient multi-tab winding-type battery piece production device | |
| CN110666446A (en) | Lithium battery pole piece laser production method | |
| CN108598559A (en) | a kind of flexible lithium ion battery | |
| CN101640284A (en) | Cylinder type lithium ion battery cell and making method thereof | |
| CN106025185A (en) | Battery pole piece coating method | |
| CN104143657B (en) | The preparation method of battery core | |
| WO2018196300A1 (en) | Processing process and device of lithium battery separator | |
| CN103165901A (en) | Pole piece substrate and pole piece of lithium battery, and preparation method thereof | |
| KR102054326B1 (en) | Electrode for Secondary Battery Having Fine Holes | |
| CN110900001A (en) | High-efficiency laser pole piece cutting method | |
| CN113896017A (en) | Pole piece forming equipment and pole piece forming process | |
| CN110919750A (en) | One-step molding device and process for pole piece tab fillet | |
| CN102101307B (en) | Combined cutter die for forming lithium battery tab | |
| CN207303265U (en) | 360 ° of winding Double-pole lug battery cores |
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: 20200324 |