CN110948902B - Processing method of lithium battery tab fiber glue - Google Patents
Processing method of lithium battery tab fiber glue Download PDFInfo
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- CN110948902B CN110948902B CN201911068631.6A CN201911068631A CN110948902B CN 110948902 B CN110948902 B CN 110948902B CN 201911068631 A CN201911068631 A CN 201911068631A CN 110948902 B CN110948902 B CN 110948902B
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- 239000000835 fiber Substances 0.000 title claims abstract description 67
- 239000003292 glue Substances 0.000 title claims abstract description 34
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 21
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 238000003672 processing method Methods 0.000 title claims abstract description 17
- 238000013329 compounding Methods 0.000 claims abstract description 133
- 239000002657 fibrous material Substances 0.000 claims abstract description 79
- 239000000463 material Substances 0.000 claims abstract description 48
- 239000002313 adhesive film Substances 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 18
- 238000007664 blowing Methods 0.000 claims abstract description 3
- 238000009960 carding Methods 0.000 claims description 71
- 238000009826 distribution Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 8
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 4
- 239000004575 stone Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 description 19
- 239000002131 composite material Substances 0.000 description 16
- 241001506047 Tremella Species 0.000 description 6
- 238000003756 stirring Methods 0.000 description 5
- 239000007773 negative electrode material Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000007774 positive electrode material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 229910018487 Ni—Cr Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
- B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/38—Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
- B29C70/382—Automated fiber placement [AFP]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/38—Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
- B29C70/382—Automated fiber placement [AFP]
- B29C70/384—Fiber placement heads, e.g. component parts, details or accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/3468—Batteries, accumulators or fuel cells
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Robotics (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
A processing method of a fiber glue of a lithium battery tab comprises the following steps: step S1, preparing materials: preparing an upper-layer pole lug adhesive film, a lower-layer pole lug adhesive film, a high-temperature fiber material and a low-temperature fiber material, wherein: step S2, rough mixing: mixing a high-temperature fiber material and a low-temperature fiber material in proportion, wherein the weight ratio of the high-temperature fiber material to the low-temperature fiber material is 1: (2-6) mixing; step S3, loosening and fine mixing: putting the coarsely mixed fiber material into a loosening mechanism, hanging the coarsely mixed fiber material by a spine on a mixing roller of the loosening mechanism, dragging the put fiber material along with the rotation of the mixing roller, further mixing the high-temperature fiber and the low-temperature fiber in the dragging process, blowing the mixed fiber material into an air duct through a high-pressure air gun, and sending the mixed fiber material into the next process; step S4, laying: stretching and laying the mixed fiber materials into a net shape; step S5, thermal compounding: and thermally compounding the upper layer lug adhesive film, the lower layer lug adhesive film and the laid fiber net.
Description
Technical Field
The invention discloses a lithium battery processing method, in particular to a lithium battery tab fiber glue processing method.
Background
A "lithium battery" is a type of battery using a nonaqueous electrolyte solution with lithium metal or a lithium alloy as a negative electrode material. The lithium battery has the advantages of high voltage, large specific energy, long cycle life, good safety performance, small self-discharge, quick charge and large working temperature range, is increasingly applied to the life of people, can be applied to various fields in the life of people, and has the tendency of replacing the traditional dry battery, the rechargeable battery (such as a nickel-hydrogen battery and a nickel-chromium battery) and the storage battery.
The general lithium battery structure comprises a positive electrode material, a negative electrode material and an insulating diaphragm, wherein the positive electrode material and the negative electrode material are respectively arranged on two sides of the insulating diaphragm and are insulated by the insulating diaphragm, and the positive electrode material and the negative electrode material are respectively attached to a tab fiber glue. Because the special processing needs of some batteries need to guarantee that utmost point ear glue has certain stretch-proofing ability, consequently, has laid the fibre web in utmost point ear glue, again with utmost point ear glued membrane and fibre web complex together, form utmost point ear glue, because the fibre web is compacter, the utmost point ear glue after the complex is because upper and lower layer utmost point ear glued membrane has been blocked by the fibre web, causes very easily to peel off to cause the wastrel, this is the problem of treating to solve in the trade urgently.
Disclosure of Invention
Aiming at the defect that the lithium battery tab glue in the prior art is easy to strip, the invention provides the processing method of the lithium battery tab fiber glue, which adopts a mode of combining high-temperature fibers and low-temperature fibers, and can utilize a mode of coating the high-temperature fibers by the low-temperature fibers, so that the lithium battery tab glue is more tightly compounded with the tab glue film and is difficult to strip.
The technical scheme adopted by the invention for solving the technical problems is as follows: a processing method of fiber glue of a lithium battery tab comprises the following steps:
step S1, preparing materials: preparing an upper-layer pole lug adhesive film, a lower-layer pole lug adhesive film, a high-temperature fiber material and a low-temperature fiber material, wherein:
step S2, rough mixing: mixing a high-temperature fiber material and a low-temperature fiber material in proportion, wherein the weight ratio of the high-temperature fiber material to the low-temperature fiber material is 1: (2-6) mixing;
step S3, loosening and fine mixing: putting the coarsely mixed fiber material into a loosening mechanism, hanging the coarsely mixed fiber material by a spine on a mixing roller of the loosening mechanism, dragging the put fiber material along with the rotation of the mixing roller, further mixing the high-temperature fiber and the low-temperature fiber in the dragging process, blowing the mixed fiber material into an air duct through a high-pressure air gun, and sending the mixed fiber material into the next process;
step S4, laying: stretching and laying the mixed fiber materials into a net shape;
step S5, thermal compounding: and thermally compounding the upper layer lug adhesive film, the lower layer lug adhesive film and the laid fiber net.
The technical scheme adopted by the invention for solving the technical problem further comprises the following steps:
the upper-layer lug glue film adopts maleic anhydride grafting conversion CPP, a high-temperature-resistant film is attached to the upper surface of the upper-layer lug glue film, the lower-layer lug glue film adopts maleic anhydride grafting conversion CPP, a high-temperature fiber material adopts a fiber material with the tolerance temperature higher than 280 ℃, and a low-temperature fiber material adopts a fiber material with the tolerance temperature of 100-180 ℃.
Loose mechanism be the compounding case, the compounding feed inlet has been seted up on the compounding case, install the compounding roller in the compounding case, the distribution of compounding roller outside has the spine, the spine is the distribution of circumference shape at compounding roller outward surface, the compounding roller actuating mechanism is installed in the compounding case outside, compounding roller actuating mechanism drive the compounding roller and rotates, install the compounding discharge roller in the compounding case, compounding discharge roller and compounding roller parallel arrangement, the distribution of compounding discharge roller outside has the spine, the spine is the distribution of circumference shape at compounding discharge roller outward surface, the discharge roller actuating mechanism is installed in the compounding case outside, discharge roller actuating mechanism drive compounding discharge roller rotates, the compounding discharge gate has been seted up on the compounding case, the compounding discharge gate corresponds the setting of compounding discharge roller, be connected with the tuber pipe on the compounding discharge gate, the last fixed air gun interface that is provided with of compounding case, be used for being connected with high-pressure air gun, the air gun interface sets up towards the compounding discharge gate.
The step S4, the laying process is completed in the laying mechanism, the laying mechanism comprises a laying part shell, a laying part feed roller driving mechanism, a laying part discharge roller driving mechanism, more than two carding rollers and a carding roller driving mechanism, the laying part shell is box-shaped, a laying part feed port is arranged on the laying part shell and connected with an air pipe, the laying part feed roller is arranged corresponding to the laying part feed port, the laying part feed roller driving mechanism is fixedly arranged on the laying part shell, a laying part discharge port is arranged on the laying part shell, the laying part discharge roller is arranged corresponding to the laying part discharge port, a laying part discharge roller driving mechanism is fixedly arranged on the laying part shell and used for driving the laying part discharge roller to rotate, more than two carding rollers are arranged between the laying part feed roller and the laying part discharge roller, the shell of the laying part is fixedly provided with a carding roller driving mechanism which drives the carding roller to rotate.
The carding rollers are arranged more than two, the carding rollers are arranged in parallel, the carding rollers are separately and independently arranged and are not in contact with each other, spines are arranged on the outer sides of the carding rollers, the rotating speeds of the carding rollers are different, the lower the rotating speed of the carding roller close to a feed inlet is, the higher the rotating speed of the carding roller close to a discharge outlet is, and the rotating speed of the carding roller at the rear part is 1.2-1.5 times that of the adjacent carding roller at the front part.
The carding rollers are all in a jujube-stone shape.
The two feeding rollers of the laying part are respectively a first laying feeding roller and a second laying feeding roller, the first laying feeding roller and the second laying feeding roller are tightly attached together, and a driving mechanism of the feeding roller of the laying part is connected with the first laying feeding roller and drives the first laying feeding roller to rotate; lay a bleeder roll including two, lay the bleeder roll for first laying the bleeder roll and second respectively, first laying the bleeder roll and second lay the bleeder roll and hug closely together, lay a bleeder roll actuating mechanism and be connected with first laying the bleeder roll, drive first laying the bleeder roll and rotate.
And S5, finishing heat compounding by adopting a heat compounding mechanism, wherein the heat compounding mechanism comprises an active compounding roller and a passive compounding roller, the active compounding roller and the passive compounding roller are oppositely arranged, the active compounding roller is made of rigid materials, the passive compounding roller is made of flexible materials, the active compounding roller and the passive compounding roller are arranged in a tightly attached manner, and a heating device is arranged in the active compounding roller.
When the heat compounding is performed in the step S5, the driving compound roller is heated to 120-180 ℃ by the heating mechanism.
The processing method also comprises rolling, and the compounded material is rolled up through a material receiving roller.
The invention has the beneficial effects that: the invention adopts a mode of combining the high-temperature fiber and the low-temperature fiber, and can utilize the mode of coating the high-temperature fiber by the low-temperature fiber, so that the high-temperature fiber and the tab adhesive film are more tightly compounded and are not easy to strip in the thermal compounding process.
The invention will be further described with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a process flow diagram of the present invention.
FIG. 2 is a block flow diagram of the present invention.
FIG. 3 is a schematic sectional view of a part of the mixing and loosening mechanism of the present invention.
FIG. 4 is a schematic sectional view of a part of the laying mechanism of the net structure of the present invention.
FIG. 5 is a schematic sectional view of a portion of the thermal compound mechanism according to the present invention.
In the figure, 1-loosening mechanism, 2-laying mechanism, 3-thermal compounding mechanism, 4-air duct, 5-supporting plate, 6-mixing box, 7-mixing feed inlet, 8-feed roller, 9-mixing roller, 10-mixing discharge roller, 11-mixing discharge outlet, 12-air gun interface, 13-laying part housing, 14-laying part feed inlet, 15-laying part discharge outlet, 16-first laying feed roller, 17-second laying feed roller, 18-first laying discharge roller, 19-second laying discharge roller, 20-first carding roller, 21-second carding roller, 22-third carding roller, 23-active compounding roller, 24-passive compounding roller, 25-first material belt roller, 26-second material belt roller, 27-receiving roller, 28-first guide roller, 29-second guide roller, 30-third guide roller, 31-upper composite film, 32-product, 33-lower composite film and 34-heating mechanism.
Detailed Description
The present embodiment is a preferred embodiment of the present invention, and other principles and basic structures that are the same as or similar to the present embodiment are within the scope of the present invention.
Referring to the attached drawings 1 to 5, the invention relates to a processing method of a fiber glue of a lithium battery tab, which mainly comprises the following steps:
step S1, preparing materials: the material adopted by the invention mainly comprises (1) an upper layer of tremella glue film; (2) and a lower tab adhesive film; (3) a high temperature fiber material; (4) a low temperature fiber material, wherein:
(1) and an upper-layer polar ear adhesive film: in the embodiment, the CPP is grafted by maleic anhydride for conversion, and a high temperature resistant film is attached to the upper surface of the upper-layer tremella glue film, namely, the high temperature resistant film is attached to one side of the upper-layer tremella glue film, and the high temperature resistant film can be a conventional high temperature resistant film in the prior art and can be selected as long as the tolerance temperature of the high temperature resistant film exceeds 200 ℃;
(2) and a lower layer of tab adhesive film: the lower-layer tab adhesive film adopts a transferable CPP (polyethylene film), and in the embodiment, the CPP adopts maleic anhydride grafting for transferring;
(3) high-temperature fiber material: the fiber material with the temperature higher than 280 ℃ can be endured, namely, the fiber material can not be melted and denatured under the condition of 280 ℃;
(4) and low-temperature fiber material: the fiber material with the tolerance temperature of 100-180 ℃, namely, when the external temperature exceeds the tolerance temperature, the low-temperature fiber material can be melted;
step S2, rough mixing: the high-temperature fiber and the low-temperature fiber are mixed, the fiber materials are usually agglomerated, when the fiber material mixing device is used, the high-temperature fiber material and the low-temperature fiber material are mixed in proportion, namely the high-temperature fiber material and the low-temperature fiber material are placed into a stirring barrel, stirring is carried out manually to enable the high-temperature fiber material and the low-temperature fiber material to be approximately mixed, the high-temperature fiber material and the low-temperature fiber material are usually placed into the stirring barrel, and stirring can be completed by manually stirring the high-temperature fiber material and the low-temperature fiber material up and down for 5-10 times, in the embodiment, the weight ratio of the high-temperature fiber material to the low-temperature fiber material is 1: (2-6) mixing;
step S3, loosening and fine mixing: since the fiber material is usually agglomerated and needs to be laid into a net shape in the final use, it needs to be loosened before the laying, and further the fiber filaments of the high temperature fiber and the low temperature fiber are mixed in the mixing process, i.e., fine-mixed.
In this embodiment, the loosening and the fine mixing are completed in the loosening mechanism 1, the loosening mechanism 1 is mainly a mixing box 6, the mixing box 6 is a sealed box body, a mixing feed inlet 7 is formed in the mixing box 6 and used for feeding fiber materials, in this embodiment, a feed roller 8 is installed at the mixing feed inlet 7 and is convenient for feeding the fiber materials into the mixing box 6, a feed roller driving mechanism is fixedly installed on the mixing box 6 and drives the feed roller 8 to rotate through the feed roller driving mechanism, in this embodiment, the feed roller driving mechanism adopts a feed roller driving motor which is directly connected with the feed roller 8 and drives the feed roller 8 to rotate, the feed roller 8 can also be driven through a belt, a gear and the like, the mixing roller 9 is installed in the mixing box 6, in this embodiment, the mixing roller 9 is cylindrical, spines are distributed on the outer side of the mixing roller 9, and the spines are distributed on the outer surface of the mixing roller 9 in a circumferential shape, a mixing roller driving mechanism is arranged outside the mixing box 6, the mixing roller driving mechanism drives the mixing roller 9 to rotate, in the embodiment, the mixing roller driving mechanism adopts a mixing roller driving motor, the mixing roller driving motor is directly connected with the mixing roller 9 to drive the mixing roller 9 to rotate, the mixing roller 9 can also be driven to rotate by a belt, a gear and the like, a mixing discharging roller 10 is arranged in the mixing box 6, the mixing discharging roller 10 and the mixing roller 9 are arranged in parallel, in the embodiment, the mixing discharging roller 10 is cylindrical, sharp spines are distributed outside the mixing discharging roller 10 and distributed on the outer surface of the mixing discharging roller 10 in a circumferential distribution manner, a discharging roller driving mechanism is arranged outside the mixing box 6 and drives the mixing discharging roller 10 to rotate, in the embodiment, the discharging roller driving mechanism adopts a discharging roller driving motor, and the discharging roller driving motor is directly connected with the mixing discharging roller 10, the mixing and discharging roller 10 is driven to rotate, and the mixing and discharging roller 10 can also be driven to rotate through a belt, a gear and the like.
In this embodiment, seted up compounding discharge gate 11 on the mixing box 6, compounding discharge gate 11 corresponds to the setting of compounding discharge roller 10, is connected with tuber pipe 4 on the compounding discharge gate 11, can discharge the fibrous material after mixing in the tuber pipe 4, and in this embodiment, tuber pipe 4 is "U" shape, and first half section upwards sets up to one side, then buckles downwards, is connected with laying mechanism 2. In this embodiment, the last fixed air gun interface 12 that is provided with of mixing box 6 for be connected with high-pressure air gun, air gun interface 12 sets up towards compounding discharge gate 11, can be more easily with loose, the back fibrous material that mixes from compounding discharge gate 11 discharges.
During loose, the fine mixing, the whole fibrous material of group after will mixing roughly puts into compounding feed inlet 7 in, put into the back and hang by the spine on the compounding roller 9 promptly, along with the rotation of compounding roller 9, the fibrous material of putting into is dragged, at the in-process of dragging, high temperature fiber and low temperature fiber further mix, fibrous material after the mixture through compounding roller 9 is hung through the spine on the compounding ejection of compact roller 10 again, along with compounding ejection of compact roller 10 rotates, high temperature fiber and low temperature fiber further mix again, just reach the purpose of misce bene basically, blow in tuber pipe 4 through high-pressure air gun at last, send into next process.
Step S4, laying: stretching and laying the mixed fiber materials into a net shape;
in this embodiment, the laying process is completed in the laying mechanism 2, the laying mechanism 2 mainly includes a laying portion housing 13, a laying portion feed roller driving mechanism, a laying portion discharge roller driving mechanism, more than two carding rollers and a carding roller driving mechanism, the laying portion housing 13 is box-shaped, a laying portion feed port 14 is formed on the laying portion housing 13, the laying portion feed port 14 is connected with an air duct 4, the fiber material can be directly blown into the laying mechanism 2 through the air duct 4, the laying portion feed roller is arranged corresponding to the laying portion feed port 14, the blown fiber is pulled into the laying portion housing 13 through the laying portion feed roller, the laying portion feed roller driving mechanism is fixedly mounted on the laying portion housing 13 and used for driving the laying portion feed roller to rotate, a laying portion discharge port 15 is formed on the laying portion housing 13, the laying portion discharge roller is arranged corresponding to the laying portion discharge port 15, the device is used for sending out a fiber web which is laid in a net shape, a laying part discharging roller driving mechanism is fixedly mounted on a laying part shell 13 and used for driving a laying part discharging roller to rotate, more than two carding rollers are mounted between a laying part feeding roller and a laying part discharging roller, a carding roller driving mechanism is fixedly mounted on a laying part shell 13 and drives a carding roller to rotate.
In this embodiment, lay a feed roller including two, lay feed roller 17 for first laying feed roller 16 and second respectively, first laying feed roller 16 and second lay feed roller 17 and hug closely together, wherein, first laying feed roller 16 is as the drive roll, second laying feed roller 17 is as driven roll, in operation, it lays feed roller 17 and rotates to drive the second through first laying feed roller 16, it is connected with first laying feed roller 16 to lay a feed roller actuating mechanism, the drive roll rotates, in this embodiment, it adopts and lays a feed roller motor to lay a feed roller actuating mechanism, it rotates to lay first laying feed roller 16 through laying a feed roller motor direct drive, in the time of concrete implementation, also can adopt forms such as belt, chain or gear to drive first laying feed roller 16 and rotate. In this embodiment, the feeding roller driving mechanism of the laying part is fixedly installed outside the outer shell 13 of the laying part, and during specific implementation, the feeding roller driving mechanism of the laying part can also be installed inside the outer shell 13 of the laying part according to actual needs.
In this embodiment, lay a bleeder roll including two, lay bleeder roll 18 and second respectively, the bleeder roll 19 is laid for first laying bleeder roll 18 and second, first laying bleeder roll 18 and second lay bleeder roll 19 and hug closely together, wherein, first laying bleeder roll 18 is as the drive roll, the bleeder roll 19 is laid as the driven roll to the second, in operation, it drives the second through first laying bleeder roll 18 and lays bleeder roll 19 and rotate, lay a bleeder roll actuating mechanism and be connected with first laying bleeder roll 18, the drive roll rotates, in this embodiment, lay a bleeder roll actuating mechanism and adopt a portion of laying bleeder roll motor, through laying a bleeder roll motor direct drive first laying bleeder roll 18 and rotate, in the time of specific implementation, also can adopt forms such as belt, chain or gear to drive first laying bleeder roll 18 and rotate. In this embodiment, the discharge roller driving mechanism of the laying part is fixedly installed outside the outer shell 13 of the laying part, and during specific implementation, the discharge roller driving mechanism of the laying part can also be installed inside the outer shell 13 of the laying part according to actual needs.
In this embodiment, there are three carding rollers, and in the specific implementation, two or more carding rollers may be provided according to actual needs, the three carding rollers are arranged in parallel, and are respectively a first carding roller 8, a second carding roller 21 and a third carding roller 22, the three carding rollers are separately and independently arranged and are not in contact with each other, and each outside of the carding rollers is provided with spines, in this embodiment, the spines are distributed in a circumferential shape outside the carding rollers, and the web can be hung by the spines outside the carding rollers and pulled forward, in this embodiment, the rotation speeds of the carding rollers are different, the closer (the closer and farther in the present invention are relative to the forward direction of the material) the rotation speed of the carding roller at the feed inlet is lower, the higher the rotation speed of the carding roller at the discharge outlet is, the fibers are pulled by different rotation speeds between the different carding rollers, and the fibers are pulled to be in a net shape, the rotating speed of the rear carding roller (in the embodiment, the rotating speed refers to the tangential rotating speed of the excircle of the carding roller) is 1.2-1.5 times of the rotating speed of the front adjacent carding roller. In this embodiment, the first carding roller 8, the second carding roller 21 and the third carding roller 22 are all in a date-stone shape, that is, the cross section of the middle part is larger in diameter, and the diameter of the two ends is smaller, so that the fiber bundle can be smoothly drawn into a thin net shape. In this embodiment, the carding roller driving mechanism adopts a carding roller motor, and the carding roller is directly driven to rotate by the carding roller motor, and during specific implementation, the carding roller can also be driven to rotate by adopting the forms of belts, chains or gears, and the like. In this embodiment, the carding roller driving mechanism is fixedly installed outside the laying part housing 13, and during specific implementation, the carding discharging roller driving mechanism can also be installed inside the laying part housing 13 according to actual needs. The carded and laid fiber web is sent into the thermal compounding mechanism 3 through the supporting plate 5, and the laid fiber web is light and thin and needs the supporting plate as a transition to be sent into the thermal compounding mechanism 3.
During laying, the mixed fiber material blown in through the air pipe 4 is firstly flattened into a sheet shape through a feeding roller of a laying part and then pulled through a multi-stage carding roller, and because the rotating speed of a rear stage carding roller is higher than that of a front stage carding roller, the fiber material can be pulled between the front stage carding roller and the rear stage carding roller to be thinner and thinner, and meanwhile, because of the special shape of the carding roller, the fiber material can extend to two sides in the pulling process to be wider and wider, and finally becomes a net shape and is sent out through a discharging roller of the laying part;
step S5, thermal compounding: thermally compounding the upper layer lug adhesive film, the lower layer lug adhesive film and the laid fiber net;
in this embodiment, the thermal compounding is completed by using the thermal compounding mechanism 3, the thermal compounding mechanism 3 includes an active compounding roller 23 and a passive compounding roller 24, the active compounding roller 23 and the passive compounding roller 24 are oppositely disposed, the active compounding roller 23 is made of rigid material, the passive compounding roller 24 is made of flexible material, the active compounding roller 23 and the passive compounding roller 24 are closely disposed, the passive compounding roller 24 can be driven by the active compounding roller 23 to rotate, and the tremella glue film is thermally compounded, in this embodiment, a heating device 34 is disposed in the active compounding roller 23 to heat the active compounding roller 23, the heating device can be an electric heating wire, the support plate is horizontally disposed, the support plate is disposed corresponding to the tangent position of the active compounding roller 23 and the passive compounding roller 24, in this embodiment, a compounding roller driving device is further disposed to drive the active compounding roller 23 to rotate, the compounding roller driving device can be a driving motor, the driving composite roller 23 is directly driven to rotate by the driving motor, or a belt, a chain or a gear and the like can be driven by the driving motor, and the driving composite roller 23 is driven to rotate by the belt, the chain or the gear and the like. In this embodiment, the driving composite roller 23 is made of stainless steel, the driven composite roller 24 is made of silica gel, and the hot-press lamination of the tab adhesive films is realized through the cooperation of the rigid composite roller and the flexible composite roller.
In this embodiment, the thermal compound mechanism 3 further includes a first material belt roller 25 and a second material belt roller 26, tab adhesive films are respectively wound on the first material belt roller 25 and the second material belt roller 26 for discharging, in this embodiment, the first material belt roller 25 and the second material belt roller 26 may adopt an active working mode or a passive working mode, when the active working mode is adopted, the first material belt roller 25 and the second material belt roller 26 are connected with driving motors, the first material belt roller 25 and the second material belt roller 26 can be driven to rotate by the motors to realize feeding, the driving motors can be directly connected with the first material belt roller 25 and the second material belt roller 26, and the drivers rotate and can also drive the first material belt roller 25 and the second material belt roller 26 to rotate by belts, chains or gears. When the passive working mode is adopted, the first material belt roller 25 and the second material belt roller 26 can be pulled to rotate by the pulling force generated when the composite roller works.
In this embodiment, hot combined mechanism 3 is still including receiving material roller 27 for the material rolling after will compounding, receive material roller 27 and receive material actuating mechanism and be connected, receive material roller 27 through receiving the drive of material actuating mechanism and rotate, realize the material rolling after the compounding, in this embodiment, receive material actuating mechanism and adopt driving motor, receive material roller 27 through driving motor direct drive and rotate, also can drive belt, chain or gear etc. through driving motor, drive through belt, chain or gear etc. and receive material roller 27 and rotate.
In this embodiment, a first guide roller 28 is disposed between the first belt roller 25 and the composite roller, and one or more first guide rollers 28 may be disposed, so that the first guide roller 28 can support and guide the upper composite film 31; a third guide roller 9 is arranged between the second material belt roller 26 and the composite roller, one or more third guide rollers 9 can be arranged, and the lower composite film 33 can be supported and guided by the third guide rollers 9; and a second guide roller 29 is arranged between the material receiving roller 27 and the composite roller, one or more second guide rollers 29 can be arranged on the second guide roller 29, and the second guide roller 29 can support and guide the product 32.
When in thermal compounding, the active compounding roller 23 is heated to 120-180 ℃ by a heating mechanism, the upper layer of the tremella glue film is attached with a high temperature resistant film, one side of the tremella glue film is positioned at the upper layer, namely, one side of the high temperature resistant film is contacted with the driving composite roller 23, the fiber net is positioned between the upper layer of pole ear adhesive film and the lower layer of pole ear adhesive film, the upper layer lug adhesive film and the lower layer lug adhesive film are heated by the driving composite roller 23, so that the contact surfaces of the upper layer lug adhesive film and the lower layer lug adhesive film are melted and bonded together, meanwhile, because the low-temperature fibers in the fiber web are fully mixed with the high-temperature fibers in the mixing and laying processes, during thermal compounding, the low-temperature fibers are heated and melted by the active compounding roller 23, so that the high-temperature fibers are coated by the low-temperature fibers, meanwhile, the melted low-temperature fibers are melted and bonded with the upper layer of tab adhesive film and the lower layer of tab adhesive film together to form a finished product which cannot be peeled.
Step S6, winding: the material receiving roller 27 winds the thermally compounded finished product on the material receiving roller 27.
The invention adopts a mode of combining the high-temperature fiber and the low-temperature fiber, and can utilize the mode of coating the high-temperature fiber by the low-temperature fiber, so that the high-temperature fiber and the tab adhesive film are more tightly compounded and are not easy to strip in the thermal compounding process.
Claims (7)
1. A processing method of a lithium battery tab fiber glue is characterized by comprising the following steps: the method comprises the following steps:
step S1, preparing materials: preparing an upper-layer pole lug adhesive film, a lower-layer pole lug adhesive film, a high-temperature fiber material and a low-temperature fiber material, wherein: the upper-layer lug glue film adopts maleic anhydride grafting conversion CPP, a high-temperature-resistant film is attached to the upper surface of the upper-layer lug glue film, the lower-layer lug glue film adopts maleic anhydride grafting conversion CPP, a high-temperature fiber material adopts a fiber material with the tolerance temperature higher than 280 ℃, and a low-temperature fiber material adopts a fiber material with the tolerance temperature of 100-180 ℃;
step S2, rough mixing: mixing a high-temperature fiber material and a low-temperature fiber material in proportion, wherein the weight ratio of the high-temperature fiber material to the low-temperature fiber material is 1: (2-6) mixing;
step S3, loosening and fine mixing: putting the coarsely mixed fiber material into a loosening mechanism, hanging the coarsely mixed fiber material by a spine on a mixing roller of the loosening mechanism, dragging the put fiber material along with the rotation of the mixing roller, further mixing the high-temperature fiber and the low-temperature fiber in the dragging process, blowing the mixed fiber material into an air duct through a high-pressure air gun, and sending the mixed fiber material into the next process;
step S4, laying: stretching and laying the mixed fiber materials into a net shape;
step S5, thermal compounding: the hot compounding of the upper-layer lug adhesive film, the lower-layer lug adhesive film and the laid fiber net is carried out, the hot compounding is completed by adopting a hot compounding mechanism during the hot compounding, the hot compounding mechanism comprises an active compounding roller and a passive compounding roller, the active compounding roller and the passive compounding roller are oppositely arranged, the active compounding roller is made of rigid materials, the passive compounding roller is made of flexible materials, the active compounding roller and the passive compounding roller are arranged in a tightly attached mode, a heating device is arranged in the active compounding roller, and during the hot compounding, the active compounding roller is heated to 120-180 ℃ by the heating mechanism.
2. The processing method of the fiber glue of the lithium battery tab according to claim 1, which is characterized by comprising the following steps: loose mechanism be the compounding case, the compounding feed inlet has been seted up on the compounding case, install the compounding roller in the compounding case, the distribution of compounding roller outside has the spine, the spine is the distribution of circumference shape at compounding roller outward surface, the compounding roller actuating mechanism is installed in the compounding case outside, compounding roller actuating mechanism drive the compounding roller and rotates, install the compounding discharge roller in the compounding case, compounding discharge roller and compounding roller parallel arrangement, the distribution of compounding discharge roller outside has the spine, the spine is the distribution of circumference shape at compounding discharge roller outward surface, the discharge roller actuating mechanism is installed in the compounding case outside, discharge roller actuating mechanism drive compounding discharge roller rotates, the compounding discharge gate has been seted up on the compounding case, the compounding discharge gate corresponds the setting of compounding discharge roller, be connected with the tuber pipe on the compounding discharge gate, the last fixed air gun interface that is provided with of compounding case, be used for being connected with high-pressure air gun, the air gun interface sets up towards the compounding discharge gate.
3. The processing method of the fiber glue of the lithium battery tab according to claim 1, which is characterized by comprising the following steps: the step S4, the laying process is completed in the laying mechanism, the laying mechanism comprises a laying part shell, a laying part feed roller driving mechanism, a laying part discharge roller driving mechanism, more than two carding rollers and a carding roller driving mechanism, the laying part shell is box-shaped, a laying part feed port is arranged on the laying part shell and connected with an air pipe, the laying part feed roller is arranged corresponding to the laying part feed port, the laying part feed roller driving mechanism is fixedly arranged on the laying part shell, a laying part discharge port is arranged on the laying part shell, the laying part discharge roller is arranged corresponding to the laying part discharge port, a laying part discharge roller driving mechanism is fixedly arranged on the laying part shell and used for driving the laying part discharge roller to rotate, more than two carding rollers are arranged between the laying part feed roller and the laying part discharge roller, the shell of the laying part is fixedly provided with a carding roller driving mechanism which drives the carding roller to rotate.
4. The processing method of the fiber glue of the lithium battery tab according to claim 3, which is characterized by comprising the following steps: the carding rollers are arranged more than two, the carding rollers are arranged in parallel, the carding rollers are separately and independently arranged and are not in contact with each other, spines are arranged on the outer sides of the carding rollers, the rotating speeds of the carding rollers are different, the lower the rotating speed of the carding roller close to a feed inlet is, the higher the rotating speed of the carding roller close to a discharge outlet is, and the rotating speed of the carding roller at the rear part is 1.2-1.5 times that of the adjacent carding roller at the front part.
5. The processing method of the fiber glue of the lithium battery tab according to claim 3, which is characterized by comprising the following steps: the carding rollers are all in a jujube-stone shape.
6. The processing method of the fiber glue of the lithium battery tab according to claim 3, which is characterized by comprising the following steps: the two feeding rollers of the laying part are respectively a first laying feeding roller and a second laying feeding roller, the first laying feeding roller and the second laying feeding roller are tightly attached together, and a driving mechanism of the feeding roller of the laying part is connected with the first laying feeding roller and drives the first laying feeding roller to rotate; lay a bleeder roll including two, lay the bleeder roll for first laying the bleeder roll and second respectively, first laying the bleeder roll and second lay the bleeder roll and hug closely together, lay a bleeder roll actuating mechanism and be connected with first laying the bleeder roll, drive first laying the bleeder roll and rotate.
7. The processing method of the fiber glue of the lithium battery tab according to claim 1, which is characterized by comprising the following steps: the processing method also comprises rolling, and the compounded material is rolled up through a material receiving roller.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201921754241X | 2019-10-18 | ||
| CN201921754241 | 2019-10-18 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203859159U (en) * | 2014-04-02 | 2014-10-01 | 深圳高格新能源科技有限公司 | Tab film for soft package of lithium ion battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004042119A1 (en) * | 2004-08-30 | 2006-03-02 | Trützschler GmbH & Co KG | Apparatus for producing a fibrous web, e.g. made of cotton, chemical fibers or the like. |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203859159U (en) * | 2014-04-02 | 2014-10-01 | 深圳高格新能源科技有限公司 | Tab film for soft package of lithium ion battery |
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