CN106735953A - The indirect welding mechanism and its welding method of a kind of lithium ion battery - Google Patents
The indirect welding mechanism and its welding method of a kind of lithium ion battery Download PDFInfo
- Publication number
- CN106735953A CN106735953A CN201611111461.1A CN201611111461A CN106735953A CN 106735953 A CN106735953 A CN 106735953A CN 201611111461 A CN201611111461 A CN 201611111461A CN 106735953 A CN106735953 A CN 106735953A
- Authority
- CN
- China
- Prior art keywords
- welding
- pole ear
- battery
- battery pole
- base material
- 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.)
- Granted
Links
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
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- 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
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/60—Preliminary treatment
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The present invention relates to a kind of lithium battery technology, more particularly, to the indirect welding mechanism and its welding method of a kind of lithium ion battery.The indirect welding mechanism of lithium ion battery, including the battery pole ear being arranged on battery, one end of battery pole ear is provided with pre-buried base material, the other end of battery pole ear is provided with welding pressing plate, several gap slots corresponding with battery pole ear position are provided with welding pressing plate, battery pole ear is located in gap slot, and welding pressing plate is fitted welding with pre-buried base material.The present invention has can be realized that battery pole ear is quickly fixed, reduce artificial operation, improve joint efficiency, ensure the beneficial effects such as bonding strength.
Description
Technical field
The present invention relates to a kind of lithium battery technology, more particularly, to a kind of indirect welding mechanism of lithium ion battery and its weldering
Connect method.
Background technology
The string between battery is generally reached using laser welding process and lock screw technique in electric automobile field at present
Purpose in parallel.When the simple use laser welding of existing technique or the technique of lock screw, but two kinds of techniques itself are present
Inevitable shortcoming, laser welding because factor of both fusing point and thermal conductivity need to be considered, so to the requirement of welding material compared with
It is high；Lock screw technique is very big to the dependence of people, and screw sample size is bigger, and the control of moment of torsion uniformity is more difficult to, automatization level
It is relatively low.
The content of the invention
The present invention is primarily directed to above mentioned problem, there is provided one kind can realize that battery pole ear is quickly fixed, reduce artificial behaviour
Make, improve joint efficiency, the indirect welding mechanism of the lithium ion battery of guarantee bonding strength and its welding method.
The purpose of the present invention is mainly what is be achieved by following proposal：A kind of indirect bonding machine of lithium ion battery
Structure, including the battery pole ear on battery is arranged on, one end of battery pole ear is provided with pre-buried base material, and the other end of battery pole ear sets
Welding pressing plate is equipped with, several gap slots corresponding with battery pole ear position are provided with welding pressing plate, battery pole ear is located at
In gap slot, welding pressing plate is fitted welding with pre-buried base material.Pre-buried base material is set in one end of battery pole ear, using pre-buried base material
Battery pole ear is supported, welding pressing plate is set in the other end of battery pole ear, battery pole ear is placed in welding pressing plate and pre-buried base
Between material, due to being provided with gap slot on the end face for welding pressing plate, and the position of gap slot and the position of battery pole ear are corresponding,
When pressing plate is welded and pre-buried base material compresses battery pole ear, battery pole ear is located just at gap slot, using laser welding apparatus
To welding pressing plate welding, avoided at battery pole ear in welding process, it is final using welding the pressure of pressing plate and pre-buried base material by electricity
Pond lug is compressed, and realizes the serial or parallel connection of battery.Whole operation reduces artificial operation, disposable using laser welding apparatus
Complete, automation integrated welding can not only be realized, and the firmness fixed to battery pole ear can be improved.
Preferably, the part between two neighboring gap slot is limiting section, adjustment hole, adjustment hole are provided with limiting section
Through there is buffering base sleeve, the area of section of the area of section more than buffering base sleeve of adjustment hole buffers the company of slip at the axis of base sleeve
It is connected to locating core.Part between two neighboring gap slot is limiting section, and adjustment hole is provided with limiting section, works as welding process
In, pressing plate temperature distortion is welded, there is micro melting in the limiting section between two neighboring gap slot, limiting section inside occurs micro
Deformation, adjustment hole sectional dimension is limited portion's own material filling, and in filling process, the buffering base sleeve in adjustment hole can be to contracting
Small adjustment hole support, and then supported to whole limiting section, limiting section is supported, and then realize to two neighboring gap slot it
Between support.After the completion of welding, buffering base sleeve outer surface is subject to the pressure that the deformation after the melting of limiting section material is produced, using buffering
The elasticity of base sleeve itself forms buffering to this partial pressure and supports.After cooling, limiting section is shaped again, at this point it is possible to will be slow
The locating core rushed in base sleeve is pulled out from buffering base sleeve, makes buffering base sleeve be in hollow, and limiting section shape has been fixed at normal temperatures,
Buffering base sleeve need not be subject to external force.Generated heat when in battery series connection or parallel process, welding pressing plate is heated generation slight expansion, limit
Position portion inside produces stress, and now, due to buffering base sleeve boring, this part stress is applied in buffering base sleeve, buffers base
Set can occur slight deformation and form buffering to this part stress, welding pressing plate internal stress is acted at buffering base sleeve, keep away
Exempt from gap slot stress, and then avoid motor lug from being squeezed.
Preferably, the groove bottom of described gap slot is provided with positioning convex, positioning convex is spherical, positioning convex
Thickness of the peak to the distance between pre-buried base material less than or equal to battery pole ear.The groove bottom of gap slot is provided with convex
Rise, positioning convex is spherical, when motor lug is located at gap slot, because the peak of positioning convex is between pre-buried base material
Distance less than or equal to battery pole ear thickness, i.e., positioning convex be squeezed on motor lug to motor lug formed pressure, with
Welding pressing plate temperature distortion, the positioning convex end temperature distortion at gap slot, peak of the motor lug to positioning convex
Apply reaction force, the peak of positioning convex is melted towards Leading Edge Deformation, make to be filled to both sides at positioning convex sphere, most
End form is into smooth plane and is pressed on motor lug, increases the bottom land of gap slot and the contact area of motor lug, and then
Reduce gap between the two.
Preferably, adjustment hole is trapezoidal hole, the side wall that the outer surface of buffering base sleeve is parallel with two in adjustment hole is tangent,
Adjustment hole is close to one end width of pre-buried base material away from one end width of pre-buried base material more than adjustment hole.Adjustment hole is trapezoidal hole,
The side wall that the outer surface of buffering base sleeve is parallel with two in adjustment hole is tangent, using two in adjustment hole parallel side walls to buffering
Base sleeve is spacing, while ensureing there is enough packing spaces between adjustment hole and buffering base sleeve.
Preferably, the material of described welding pressing plate is identical with the material of pre-buried base material.Weld pressing plate material with it is pre-
The material for burying base material is identical, and so avoiding different need to the welding from different pre-buried base materials adaptations of battery core positive and negative pole material will
Situation about asking.
A kind of a kind of welding method of the indirect welding mechanism of lithium ion battery described above, step is as follows：1）By battery
Lug is passed through in the notch of pre-buried base material, by battery pole ear bending, battery pole ear is fitted on pre-buried base material；2）Welding is pressed
Plate is pressed in battery pole ear top, battery pole ear is located between welding pressing plate and pre-buried base material, while ensureing that battery pole ear is located at
At gap slot；3）The mechanism that will be assembled is placed in laser welding apparatus plumb joint lower section, is avoiding entering battery at lug position
Row welding, using the pressure compaction battery pole ear for welding pressing plate and pre-buried base material, realizes the connection in series-parallel of battery.
Preferably, completing step 3）Afterwards, the locating core that will be buffered in base sleeve is pulled out from buffering base sleeve.
Therefore, the indirect welding mechanism and its welding method of a kind of lithium ion battery of the invention possess following advantages：
One end of battery pole ear sets pre-buried base material, and battery pole ear is supported using pre-buried base material, is set in the other end of battery pole ear
Welding pressing plate, battery pole ear is placed between welding pressing plate and pre-buried base material, due to being provided with breach on the end face for welding pressing plate
Groove, and the position of gap slot and the position of battery pole ear are corresponding, when pressing plate is welded and pre-buried base material compresses battery pole ear, electricity
Pond lug is located just at gap slot, and welding pressing plate is welded using laser welding apparatus, and battery pole ear is avoided in welding process
Place, pressing plate is welded in final utilization and the pressure of pre-buried base material compresses battery pole ear, realizes the serial or parallel connection of battery.Whole work
Sequence reduces artificial operation, is disposably completed using laser welding apparatus, can not only realize automation integrated welding, Er Qieneng
It is enough to improve the firmness fixed to battery pole ear.
Brief description of the drawings
Accompanying drawing 1 is a kind of structural representation of the invention；
Accompanying drawing 2 is to weld pressing plate structural representation in embodiment 1；
Accompanying drawing 3 is that the cross-section cutaway view after the completion of pressing plate and the welding of pre-buried base material is welded in embodiment 1；
Accompanying drawing 4 is to weld pressing plate structural representation in example 2；
Accompanying drawing 5 is that the cross-section cutaway view after the completion of pressing plate and the welding of pre-buried base material is welded in embodiment 2；
Accompanying drawing 6 is to weld pressing plate structural representation in embodiment 3.
Illustrate：1- battery pole ears, the pre-buried base materials of 2-, 3- welding pressing plates, 4- gap slots, 5- limiting sections, 6- adjustment holes,
7- buffers base sleeve, 8- locating cores, 9- positioning convex.
Specific embodiment
Below by embodiment, and with reference to accompanying drawing, technical scheme is described in further detail.
Embodiment 1：As shown in Figure 1, 2, 3, the indirect welding mechanism of a kind of lithium ion battery, including be arranged on battery
Battery pole ear 1, one end of battery pole ear is provided with pre-buried base material 2, and the other end of battery pole ear is provided with welding pressing plate 3, welding
The material of pressing plate is identical with the material of pre-buried base material.Several are provided with welding pressing plate corresponding with battery pole ear position to lack
Mouthful groove 4, battery pole ear is located in gap slot, and welding pressing plate is fitted welding with pre-buried base material.
A kind of welding method of the indirect welding mechanism of above-mentioned lithium ion battery, step is as follows：1）Battery pole ear is worn
Cross in the notch of pre-buried base material, by battery pole ear bending, battery pole ear is fitted on pre-buried base material；2）Welding pressing plate is pressed in
Battery pole ear top, makes battery pole ear be located between welding pressing plate and pre-buried base material, while ensureing that battery pole ear is located at gap slot
Place；3）The mechanism that will be assembled is placed in laser welding apparatus plumb joint lower section, avoiding welding battery at lug position,
Using the pressure compaction battery pole ear for welding pressing plate and pre-buried base material, the connection in series-parallel of battery is realized.
Pre-buried base material is set in one end of battery pole ear, battery pole ear is supported using pre-buried base material, in battery pole ear
The other end sets welding pressing plate, and battery pole ear is placed between welding pressing plate and pre-buried base material, due on the end face for welding pressing plate
There is provided gap slot, and the position of gap slot and the position of battery pole ear are corresponding, when welding pressing plate and pre-buried base material compress electricity
During the lug of pond, battery pole ear is located just at gap slot, and welding pressing plate is welded using laser welding apparatus, is kept away in welding process
Open at battery pole ear, it is final using pressing plate is welded and the pressure of pre-buried base material compresses battery pole ear, realize battery series connection or
It is in parallel.Whole operation reduces artificial operation, is disposably completed using laser welding apparatus, can not only realize automation integrated
Welding, and the firmness fixed to battery pole ear can be improved.The material for welding pressing plate is identical with the material of pre-buried base material, this
Sample avoids the different situations that different pre-buried base materials need to be selected to adapt to welding requirements of battery core positive and negative pole material.
Embodiment 2：The present embodiment is essentially identical with the structure of embodiment 1, and difference is, as shown in Figure 4,5, adjacent
Part between two gap slots is limiting section 5, and adjustment hole 6 is provided with limiting section, and adjustment hole is adjusted through there is buffering base sleeve 7
The area of section of knothole slidably connects locating core 8 more than the area of section of buffering base sleeve at the axis for buffering base sleeve.Adjustment hole
Be trapezoidal hole, the outer surface side wall parallel with two in adjustment hole for buffering base sleeve is tangent, adjustment hole away from pre-buried base material one
End width is close to one end width of pre-buried base material more than adjustment hole.Part between two neighboring gap slot is limiting section, spacing
Adjustment hole is provided with portion, when in welding process, pressing plate temperature distortion is welded, the limiting section between two neighboring gap slot occurs
There is micro-deformation in micro melting, limiting section inside, adjustment hole sectional dimension is limited portion's own material filling, filling process
In, the adjustment hole support that the buffering base sleeve in adjustment hole can be to reducing, and then whole limiting section is supported, limiting section is propped up
Support, and then realize to being supported between two neighboring gap slot.After the completion of welding, buffering base sleeve outer surface is molten by limiting section material
The pressure that deformation after solution is produced, forms buffering to this partial pressure and supports using the elasticity for buffering base sleeve itself.After cooling,
Limiting section is shaped again, at this point it is possible to the locating core that will be buffered in base sleeve is pulled out from buffering base sleeve, makes buffering base sleeve in sky
The heart, at normal temperatures limiting section shape fixed, buffering base sleeve need not be subject to external force.Sent out when in battery series connection or parallel process
Heat, welding pressing plate is heated generation slight expansion, and limiting section inside produces stress, now, due to buffering base sleeve boring, this portion
The component of stress is applied in buffering base sleeve, and buffering base sleeve can occur slight deformation and form buffering to this part stress, press welding
Intralamellar part stress is at buffering base sleeve, it is to avoid gap slot stress, and then avoids the motor lug from being squeezed.Adjustment hole is
Trapezoidal hole, the side wall that the outer surface of buffering base sleeve is parallel with two in adjustment hole is tangent, using two parallel sides in adjustment hole
Wall is spacing to buffering base sleeve, while ensureing there is enough packing spaces between adjustment hole and buffering base sleeve.
Embodiment 3：The present embodiment is essentially identical with the structure of embodiment 1 or 2, and difference is, as shown in fig. 6, lacking
The groove bottom of mouthful groove is provided with positioning convex 9, and positioning convex is spherical, the peak of positioning convex between pre-buried base material away from
From the thickness less than or equal to battery pole ear.The groove bottom of gap slot is provided with positioning convex, and positioning convex is spherical, when motor pole
Ear is located at when at gap slot, due to the thickness of the peak to the distance between pre-buried base material less than or equal to battery pole ear of positioning convex
Degree, i.e. positioning convex are squeezed on motor lug and form pressure to motor lug, with welding pressing plate temperature distortion, at gap slot
The temperature distortion of positioning convex end, motor lug applies reaction force, makes positioning convex most to the peak of positioning convex
High point melts towards Leading Edge Deformation, makes to be filled to both sides at positioning convex sphere, ultimately forms smooth plane and is pressed on electricity
On machine lug, increase the bottom land of gap slot and the contact area of motor lug, and then reduce gap between the two.
It should be understood that the embodiment is only illustrative of the invention and is not intended to limit the scope of the invention.In addition, it is to be understood that
Read after the content of instruction of the present invention, those skilled in the art can make various changes or modifications to the present invention, these etc.
Valency form equally falls within the application appended claims limited range.
Claims (7)
1. the indirect welding mechanism of a kind of lithium ion battery, including it is arranged on the battery pole ear on battery, it is characterised in that battery
One end of lug is provided with pre-buried base material, and the other end of battery pole ear is provided with welding pressing plate, is provided with welding pressing plate some
The individual gap slot corresponding with battery pole ear position, battery pole ear is located in gap slot, and welding pressing plate is fitted weldering with pre-buried base material
Connect.
2. a kind of indirect welding mechanism of lithium ion battery according to claim 1, it is characterised in that two neighboring breach
Part between groove is limiting section, and adjustment hole is provided with limiting section, and adjustment hole runs through buffering base sleeve, the section face of adjustment hole
Product slidably connects locating core more than the area of section of buffering base sleeve at the axis for buffering base sleeve.
3. a kind of indirect welding mechanism of lithium ion battery according to claim 2, it is characterised in that described gap slot
Groove bottom be provided with positioning convex, positioning convex is spherical, and the peak of positioning convex is small to the distance between pre-buried base material
In the thickness equal to battery pole ear.
4. the indirect welding mechanism of a kind of lithium ion battery according to claim 2, it is characterised in that adjustment hole is trapezoidal
Hole, the side wall that the outer surface of buffering base sleeve is parallel with two in adjustment hole is tangent, one end width of the adjustment hole away from pre-buried base material
More than one end width that adjustment hole is close to pre-buried base material.
5. a kind of indirect welding mechanism of the lithium ion battery according to claim 1 or 2 or 3 or 4, it is characterised in that institute
The material of the welding pressing plate stated is identical with the material of pre-buried base material.
6. the welding side of the indirect welding mechanism of a kind of a kind of lithium ion battery as described in any one in claim 1 to 5
Method, it is characterised in that step is as follows：1）Battery pole ear is passed through in the notch of pre-buried base material, by battery pole ear bending, makes battery
Lug is fitted on pre-buried base material；2）Welding pressing plate is pressed in battery pole ear top, battery pole ear is located at welding pressing plate and pre-
Bury between base material, while ensureing that battery pole ear is located at gap slot；3）The mechanism that will be assembled is placed in laser welding apparatus welding
Head lower section, is avoiding welding battery at lug position, using the pressure compaction battery pole for welding pressing plate and pre-buried base material
Ear, realizes the connection in series-parallel of battery.
7. welding method according to claim 6, it is characterised in that complete step 3）Afterwards, determining in base sleeve will be buffered
Position core is pulled out from buffering base sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611111461.1A CN106735953B (en) | 2016-12-06 | 2016-12-06 | A kind of indirect welding mechanism and its welding method of lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611111461.1A CN106735953B (en) | 2016-12-06 | 2016-12-06 | A kind of indirect welding mechanism and its welding method of lithium ion battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106735953A true CN106735953A (en) | 2017-05-31 |
| CN106735953B CN106735953B (en) | 2018-11-06 |
Family
ID=58879282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611111461.1A Active CN106735953B (en) | 2016-12-06 | 2016-12-06 | A kind of indirect welding mechanism and its welding method of lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106735953B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110202287A (en) * | 2019-06-20 | 2019-09-06 | 浙江奥为新能源有限公司 | A kind of welding battery process |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101615664A (en) * | 2009-03-31 | 2009-12-30 | 深圳市吉阳自动化科技有限公司 | Lug processing method |
| CN203221309U (en) * | 2013-04-26 | 2013-10-02 | 浙江天能动力能源有限公司 | Pressing bar used for storage battery pole group welding |
| CN103464851A (en) * | 2012-06-06 | 2013-12-25 | 支红俊 | Series-parallel connection precise thermocompression bonding process for soft-packing cell lug of lithium battery pack |
| CN204230338U (en) * | 2014-09-26 | 2015-03-25 | 中信国安盟固利动力科技有限公司 | A kind of lug laser welding structure of lithium ion battery and the battery pack of formation thereof |
| CN105328320A (en) * | 2015-12-04 | 2016-02-17 | 浙江海悦自动化机械股份有限公司 | Electric resistance welding method suitable for busbar |
| CN205692895U (en) * | 2016-05-25 | 2016-11-16 | 华霆（合肥）动力技术有限公司 | Battery modules tab welding device |
-
2016
- 2016-12-06 CN CN201611111461.1A patent/CN106735953B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101615664A (en) * | 2009-03-31 | 2009-12-30 | 深圳市吉阳自动化科技有限公司 | Lug processing method |
| CN103464851A (en) * | 2012-06-06 | 2013-12-25 | 支红俊 | Series-parallel connection precise thermocompression bonding process for soft-packing cell lug of lithium battery pack |
| CN203221309U (en) * | 2013-04-26 | 2013-10-02 | 浙江天能动力能源有限公司 | Pressing bar used for storage battery pole group welding |
| CN204230338U (en) * | 2014-09-26 | 2015-03-25 | 中信国安盟固利动力科技有限公司 | A kind of lug laser welding structure of lithium ion battery and the battery pack of formation thereof |
| CN105328320A (en) * | 2015-12-04 | 2016-02-17 | 浙江海悦自动化机械股份有限公司 | Electric resistance welding method suitable for busbar |
| CN205692895U (en) * | 2016-05-25 | 2016-11-16 | 华霆（合肥）动力技术有限公司 | Battery modules tab welding device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110202287A (en) * | 2019-06-20 | 2019-09-06 | 浙江奥为新能源有限公司 | A kind of welding battery process |
| CN110202287B (en) * | 2019-06-20 | 2021-07-30 | 浙江奥为新能源有限公司 | Battery welding process method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106735953B (en) | 2018-11-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107234329B (en) | Method for welding tab of soft-packaged battery cell | |
| JP2008243735A (en) | Solid electrolyte, its molding method, lithium ion secondary battery and its manufacturing method | |
| CN106735953A (en) | The indirect welding mechanism and its welding method of a kind of lithium ion battery | |
| CN102629689B (en) | Production method of lead-coated copper plate grid of lead acid storage battery and special combined mould | |
| JP2017157271A (en) | All-solid type secondary battery and method for manufacturing the same | |
| CN108054433A (en) | Square electric cell hot-press molding method | |
| WO2017197639A1 (en) | Battery cell and method for forming same | |
| CN104227351A (en) | Preparation method for aluminum parting bar for practical hollow glass | |
| JP5698803B2 (en) | Method for producing lithium ion secondary battery | |
| CN210011125U (en) | Hot press equipment is used in laminated wood board processing | |
| CN106025383A (en) | Valve-control type lead acid storage battery and preparation method thereof | |
| CN101570254A (en) | Method for encapsulating plastic-aluminum packaging film | |
| CN212925227U (en) | Heating device | |
| CN115096054B (en) | Naked battery cell vacuum baking clamp and baking method | |
| CN218505032U (en) | Hot-pressing die | |
| KR101322204B1 (en) | Mathod of loading cathode of litium primary battery with minimum distance between cathode and anode | |
| CN115084791B (en) | Method for manufacturing synthetic electrode lug | |
| CN215817684U (en) | High-frequency motor stator and stator core thereof | |
| CN215879490U (en) | Foil connecting device for foil production | |
| CN115832322A (en) | Method for manufacturing powder lead alloy grid with high-conductivity plate core | |
| CN116864817A (en) | Battery cell hot pressing method and battery cell hot press | |
| CN220774514U (en) | PCM prepreg heating film structure | |
| CN108390005B (en) | High-conductivity busbar structure for lead-acid storage battery | |
| CN209929376U (en) | Novel inner skeleton for battery module | |
| CN210344121U (en) | Constant force spring |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |