CN109193032A - Polymer battery and its packaging technology - Google Patents
Polymer battery and its packaging technology Download PDFInfo
- Publication number
- CN109193032A CN109193032A CN201810936058.5A CN201810936058A CN109193032A CN 109193032 A CN109193032 A CN 109193032A CN 201810936058 A CN201810936058 A CN 201810936058A CN 109193032 A CN109193032 A CN 109193032A
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- Prior art keywords
- polymer battery
- circuit board
- hot melt
- polymer
- protective layer
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
Present invention discloses a kind of polymer battery and its packaging technologies; polymer battery packaging technology; the following steps are included: solid-state hot melt adhesive is heated to the first temperature so that solid-state hot melt adhesive is in a molten state; and the designated surface region for the circuit board being pre-placed in specified injection mold is injected into first pressure; after naturally cool to room temperature; hot melt compound protective layer is formed, wherein the component on at least whole covering boards of hot melt compound protective layer；There is the circuit board of hot melt compound protective layer to be electrically connected and be adhesively fixed with polymer battery core designated surface region overlay, forms polymer and pre-install body；Polymer prepackage body is wrapped up, polymer battery is formed.Polymer battery packaging technology of the invention can well protect the component on circuit board, so that polymer battery can realize full-automatic production, improve production efficiency.
Description
Technical field
The present invention relates to cell package technical field, a kind of polymer battery and its packaging technology are especially related to.
Background technique
Current lithium ion polymer battery generallys use dress rubber shell packaging technology and is packaged, but this cell package work
Skill has the disadvantage in that
Component after encapsulation on circuit board cannot be protected well, so that battery cannot achieve full-automatic production.
Therefore, so that the component after encapsulating on circuit board is protected well to improve production efficiency is this
The problem of field technical staff's urgent need to resolve.
Summary of the invention
The main object of the present invention is to provide a kind of polymer battery and its packaging technology, polymer battery envelope of the invention
Dress technique can well protect the component on circuit board, so that polymer battery can realize full-automatic production, mention
High production efficiency.
The present invention proposes a kind of polymer battery packaging technology, comprising the following steps:
Solid-state hot melt adhesive is heated to the first temperature so that solid-state hot melt adhesive is in a molten state, and injects with first pressure
Hot melt adhesive is formed after naturally cool to room temperature to the designated surface region for the circuit board being pre-placed in specified injection mold
Protective layer, wherein the component on at least whole covering boards of hot melt compound protective layer；
There is the circuit board of hot melt compound protective layer to be electrically connected and bond with polymer battery core designated surface region overlay
It is fixed, it forms polymer and pre-installs body；
Polymer prepackage body is wrapped up, polymer battery is formed.
Further, the circuit board of hot melt compound protective layer is electrically connected with polymer battery core designated surface region overlay
It connects and includes: the step of being adhesively fixed
The tab of electrostrictive polymer core head is straightened, " linear type " tab is formed；
By the first end face and tab welding of the sheet metal of " L " type, second end face and welding circuit board；
Sheet metal is converted into；
Tab inflection is extremely open towards the side of polymer battery core；
Circuit board and the head of polymer battery core are bonded using insulating cement.
Further, pre-installing the step of body wraps up to polymer includes:
It is wrapped up using at least four sides of the insulation gummed paper to polymer prepackage body.
Further, the first temperature includes 140 DEG C~180 DEG C.
Further, first pressure includes 0.15MPa~0.5MPa.
The present invention also proposes a kind of polymer battery, obtains using polymer battery packaging technology above-mentioned, including poly-
It is solid to close object battery core, the circuit board containing component, head insulation gummed paper, tail portion insulation gummed paper and side insulation gummed paper, circuit board
Due to polymer battery core head and with polymer battery core formation be electrically connected, the designated surface region overlay of circuit board has hot melt adhesive
Protective layer, heats the component on at least whole covering boards of compound protective layer, and head insulation gummed paper wraps up polymer battery core
Head, tail portion insulating cement paper bag wrap up in the tail portion of polymer battery core, and side insulating cement paper bag wraps up in the side of polymer battery core.
Further, the head of polymer battery core has tab, is connected with sheet metal on tab, tab by sheet metal with
Circuit board mutually welds and forms electrical connection.
Further, the head of polymer battery core has installation step, and installation step is equipped with nonconductive adhesive layer, circuit board
It is fixedly connected by nonconductive adhesive layer with installation step.
Further, designated surface region includes the lower surface and upper surface of circuit board, and component is located under circuit board
On surface, upper surface and the component of the comprehensive covering board of compound protective layer are heated, the hot melt adhesive on surface is protected on circuit boards
Multiple location holes are offered on sheath.
Further, the thickness for heating compound protective layer includes 0.3mm~1.0mm.
The beneficial effects of the present invention are: polymer battery of the invention uses the encapsulation side of hot melt adhesive low-pressure injection molding technology
The hot melt adhesive of molten condition is covered in the designated surface region of circuit board and is formed by curing and impacted with good mechanical resistant power by formula
Property hot melt compound protective layer, which carries out whole coverings to the component on circuit board, so that on circuit board
Component can be protected well, so that polymer battery can realize full-automatic production, improve production efficiency.
Detailed description of the invention
Fig. 1 is the flow diagram of one embodiment of the invention polymer battery packaging technology；
Fig. 2 is the structural decomposition diagram of one embodiment of the invention polymer battery；
Fig. 3 is the head construction schematic diagram of polymer prepackage body in one embodiment of the invention polymer battery；
Fig. 4 is to be electrically connected circuit board and polymer battery core in one embodiment of the invention polymer battery packaging technology
Status diagram afterwards；
Fig. 5 is bond admittedly by circuit board and polymer battery core in one embodiment of the invention polymer battery packaging technology
Status diagram after fixed；
Fig. 6 is that the present invention one implements the head for pre-installing body in polymer battery packaging technology to polymer using insulation gummed paper
Status diagram after being wrapped up.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
Referring to Fig.1, Fig. 2, Fig. 5 and Fig. 6, the embodiment of the present invention propose a kind of polymer battery packaging technology, including following
Step:
Step 110, solid-state hot melt adhesive is heated to the first temperature so that solid-state hot melt adhesive is in a molten state, and with first
Pressure is injected into the designated surface region for the circuit board 3 being pre-placed in specified injection mold, after naturally cool to room temperature, shape
At hot melt compound protective layer 2, wherein the component 11 on at least whole covering boards 3 of hot melt compound protective layer 2；
Step 120, the circuit board 3 of hot melt compound protective layer 2 and polymer battery core 6 carry out electricity designated surface region overlay
It connects and is adhesively fixed, form polymer and pre-install body；
Step 130, polymer prepackage body is wrapped up, forms polymer battery.
In above-mentioned steps 110, solid-state hot melt adhesive be it is a kind of have good insulation properties, waterproofness, chemical corrosion resistance and
The plasticity adhesive of mechanical resistant power impact is rendered as solid-state under room temperature, when being heated to certain temperature, can be turned by solid-state
Become molten condition；First temperature refers to the temperature that solid-state hot melt adhesive material can be made to become the molten condition with mobility from solid-state
Degree；First pressure refers to the injection pressure of injection molding machine；Specified injection mold is to carry out mold according to the shape and size of circuit board 3 to set
The structure of dedicated injection mold obtained by meter, internal cavity structure and circuit board 3 is adapted；Designated surface region is circuit
The position that insulation protection is needed on plate 3 for convenience of description and understands including position, the place on line etc. where component 11, can
Referring to Fig. 2 to 6, designated surface region includes the upper and lower surfaces of circuit board 3, and component 11 is located at the following table of circuit board 3
Face, hot melt compound protective layer 2 carry out whole coverings to the upper surface of component 11 and circuit board 3, wherein the lower surface of circuit board 3
Partial denudation (i.e. not covered with hot melt compound protective layer 2), is electrically connected so as to subsequent with polymer battery core 6；It is being embodied
When, the type that the circuit board 3 containing component 11 is first put into specified injection mold is intracavitary, will by the nozzle of injection molding machine after molding
The hot melt adhesive of molten condition is injected in mold cavity with first pressure to be filled, and the hot melt adhesive of molten condition is covered in
The designated surface region of circuit；To hot melt adhesive cooled to room temperature, it can be formed and be heated in the designated surface region of circuit board 3
Compound protective layer 2, the component 11 on at least whole covering boards 3 of the hot melt compound protective layer 2；It is preferably heated to obtain quality
Compound protective layer 2, it is preferable that solid-state hot melt adhesive can be selected the maximum tensile strength and be greater than 3.2MPa, and elongation at break is greater than 200%,
Viscosity is the polyamide hot of 2.0~4.0Pa.s (200 DEG C), and the first temperature can be 140 DEG C~180 DEG C, and first pressure can be
0.15MPa~0.5MPa.
In above-mentioned steps 120, designated surface region overlay is had to the circuit board 3 and electrostrictive polymer of hot melt compound protective layer 2
When core 6 is electrically connected, specifically, referring to Fig. 4 and Fig. 5, first the tab 61 on 6 head of polymer battery core can be straightened, formed " straight
Line style " tab 61, i.e., tab 61 is carried out it is smooth, to facilitate subsequent welded；Then use laser welding, ultrasonic bonding
Etc. modes the first end face of the sheet metal 5 of " L " type is welded with tab 61, on second end face and 3 lower surface of circuit board not
The position for being covered with hot melt compound protective layer 2 is welded, to realize being electrically connected between circuit board 3 and polymer battery core 6；Weldering
After the completion of connecing, sheet metal 5 is converted into, tab 61 is sandwiched between the first end face and second end face of sheet metal 5；With
61 inflection of tab is formed into the tab 61 of U-typed to opening towards the side of polymer battery core 6 afterwards；And then insulating cement is used
The head of circuit board 3 and polymer battery core 6 is carried out to bond the fixation that can be realized between circuit board 3 and polymer battery core 6, is obtained
The polymer for obtaining semi-finished product pre-installs body；Wherein, the material of tab 61 can plate nickel material, quantity for nickel material, aluminum material or copper
It is two, is respectively served as the positive and negative anodes of polymer battery core 6；Sheet metal 5 can plate nickel sheet, quantity two for nickel sheet, aluminium flake or copper
It is a, respectively correspond two tabs 61；In the present embodiment, the side welded circuit board 3 and tab 61 using sheet metal 5
Formula can solve the problems, such as directly to weld in (tab 61 directly by circuit board 3 and after bending welds) mode and weld limited space,
The welding between circuit board 3 and tab 61 is facilitated, the flexibility of welding is improved.
In above-mentioned steps 103, specifically, insulation gummed paper can be used to carry out at least four sides of polymer prepackage body
Package, to play the role of insulation, protection, waterproof, anticollision；Referring to Fig. 2, Fig. 3 and Fig. 6, it is preferable that polyimides can be used
Film (P I film) or high temperature resistance polyester film (PET film) respectively to pre-install polymer head, the tail of body as insulation gummed paper
Portion and two sides are wrapped up, while sticking PET sheet 9 in the lower surface of polymer prepackage body, to obtain the polymerization of finished product
Object battery；In the present embodiment, since the component 11 on circuit board 3 is by the whole covering protections of hot melt compound protective layer 2, gather
The head for closing object prepackage body can only be wrapped up with one layer of insulation gummed paper when packaged, realize the diversification (gummed paper of encapsulation
Shape can be rectangular, can be misconduct shape, therefore can meet different battery cephalosome outer dimensions to be round), meanwhile, phase
Than conventional dress rubber shell packaging technology, structural behaviour is relatively reliable, and cost is lower.
The polymer battery packaging technology of the embodiment of the present invention carries out needle to circuit board 3 using hot melt adhesive low-pressure injection molding technology
Property is molded, so that the designated surface region of circuit board 3 can form the hot melt compound protective layer with good mechanical resistant power impact
2, which covers the component 11 on circuit board 3 comprehensively, so that the component 11 on circuit board 3 can
It is protected well, so that polymer battery can realize full-automatic production, improves production efficiency；In addition, this
The polymer battery packaging technologies of inventive embodiments using the injection molding packaging for first carrying out circuit board 3, it is rear carry out circuit board 3 with polymerize
The packaged type of the assembling of object battery core 6, also has the advantage that
1, since the designated surface region of circuit board 3 is in advance by 2 covering protection of hot melt compound protective layer, circuit board can be kept away
3 during storage, transport and the installation (such as welded and be adhesively fixed with polymer battery core 6) by extraneous pollution,
Collision is corroded or is scratched；
2, since the component 11 on circuit board 3 is in advance by 2 covering protection of hot melt compound protective layer, polymer pre-installs body
Head when packaged can only be wrapped up with one layer of insulation gummed paper, and then polymer pre-install body tail portion and side also can be used
One layer of insulation gummed paper is wrapped up, and has been saved material, has been simplified production technology；
3, compared to traditional assembling for first carrying out circuit board 3 and polymer battery core 6, the rear envelope for carrying out whole injection molding packaging
Dress mode, the polymer battery packaging technology of the embodiment of the present invention first carry out the injection molding packaging of circuit board 3, rear to carry out circuit board 3
With the assembling of polymer battery core 6, it can not only reduce the difficulty of mold design but also mold materials can be saved；
4, due to using hot melt adhesive low-pressure injection molding technology, and the overall volume of circuit board 3 is smaller, therefore works as molten condition
Hot melt adhesive be injected into mold cavity after, at normal temperatures and pressures can quickly (5~10s) be formed by curing hot melt compound protective layer 2, effect
Rate is very high, moreover, being formed by hot melt adhesive guarantor after carrying out injection molding packaging to circuit board 3 using hot melt adhesive low-pressure injection molding technology
The very thin thickness (very thin hot melt compound protective layer 2 can reach good protective performance) of sheath 2, had not only saved material but also had saved
The encapsulated space of battery, therefore compared to using conventional dress rubber shell packaging technology, the battery size after encapsulation is smaller.
Referring to Fig. 2, Fig. 3 and Fig. 5, the embodiment of the present invention also propose a kind of application polymer battery packaging technology above-mentioned and
The polymer battery of acquisition, circuit board 3, head insulation gummed paper 1, tail portion insulation including polymer battery core 6, containing component 11
Insulate gummed paper 7 for gummed paper 8 and side, and circuit board 3 is fixed on the head of polymer battery core 6 and is electrically connected with the formation of polymer battery core 6,
The designated surface region overlay of circuit board 3 has hot melt compound protective layer 2, heats on at least whole covering boards 3 of compound protective layer 2
Component 11, head insulation gummed paper 1 wrap up the head of polymer battery core 6, and tail portion insulation gummed paper 8 wraps up the tail of polymer battery core 6
Portion, side insulation gummed paper 7 wrap up the side of polymer battery core 6, wherein designated surface region includes the upper surface region of circuit board 1
Surface region where domain and component 11, hot melt compound protective layer 2 with a thickness of 0.3mm~1.0mm, it is preferable that hot melt adhesive
Protective layer 2 with a thickness of 0.4mm, the epoxy resin protective layer 2 of the thickness not only can reach good protective performance, but also can reduce note
The mould and die accuracy of mould require (thickness of epoxy resin protective layer 2 is thinner, the mould and die accuracy of injection mold is required it is higher,
Mould and die accuracy requires higher, and die cost is also higher), combine product quality and production cost (including material cost
And die cost), so that can reach a balance well between product quality and production cost.
In this embodiment, after circuit board 3 carries out targetedly injection molding packaging using hot melt adhesive low-pressure injection molding technology, can refer to
Determine the hot melt compound protective layer 2 that surface region forms 0.4mm or so, the opposite battery using after common dress rubber shell packaging technology encapsulation
Size, Inventive polymers battery can save 0.5mm~1.0mm (due to the difference of battery capacity, the length of battery in length direction
Degree can have differences, therefore in contrast, can have a waving interval in length direction) space, reduce the envelope of battery
Space is filled, meanwhile, hot melt compound protective layer 2 all covers the component 11 on circuit board 3, so that the component on circuit board 3
11 can be protected well, so that polymer battery can realize full-automatic production, improve production efficiency；This
Outside, due to the covering protection of hot melt compound protective layer 2, the mechanical resistant power impact property of component 11 is greatly promoted, for example, carrying out
It can avoid component 11 when battery drop test and damage Problem of Failure, so that battery has reliable mechanical performance.
Referring to Fig. 2, the polymer battery of the embodiment of the present invention further includes PET sheet 9 and easy-to-draw glue 10, and PET sheet 9 is pasted on poly-
The lower surface of object battery core 6 is closed, easy-to-draw glue 10 is pasted on the surface of PET sheet 9；In the present embodiment, the setting of PET sheet 9 can mention
The heat-resisting quantity of high battery, while can avoid pollution, scratch of the battery in transport, during storing and install and use by the external world
And erosion；And the setting of easy-to-draw glue 10 can facilitate battery is bonded or is dismantled in electronic product (such as mobile phone).
Referring to Fig. 2 and Fig. 4, the head of polymer battery core 6 has tab 61, is connected with sheet metal 5, tab 61 on tab 61
It is formed and is electrically connected with the welding of 3 phase of circuit board by sheet metal 5, wherein sheet metal 5 can plate nickel sheet, nickel for nickel sheet, aluminium flake or copper
Piece, aluminium flake, copper plating nickel sheet have good electric conductivity and ductility, and at low cost, while meeting requirement, can facilitate will be electric
Road plate 3 is welded with tab 61.
Referring to Fig. 3 to Fig. 6, the head of polymer battery core 6 has installation step 62, and installation step 62 is equipped with nonconductive adhesive
Layer 4, circuit board 3 are fixedly connected by nonconductive adhesive layer 4 with installation step 62, wherein it is two-sided that insulation can be selected in nonconductive adhesive layer 4
Glue or insulative glue, it is easy to use, and connect reliably, it is at low cost.
Referring to Fig. 2, Fig. 3 and Fig. 5, designated surface region includes the lower surface and upper surface of circuit board 3, and component 11 is located at
On the lower surface of circuit board 3, the component 11 in the upper surface and lower surface of the comprehensive covering board 3 of compound protective layer 2 is heated,
Multiple location holes 21 are offered on the hot melt compound protective layer 2 of 3 upper surface of circuit board, location hole 21 is upper perpendicular to circuit board 3
Surface；In the present embodiment, it is uniform to not only improve the injecting glue when carrying out injection molding packaging of circuit board 3 for the design of location hole 21, convenient
Exhaust, but be conducive to circuit board 3 be molded after exposed test point tested, quantity depending on actual needs, in this reality
It applies in example, the quantity of location hole 21 is 3.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of polymer battery packaging technology, which comprises the following steps:
Solid-state hot melt adhesive is heated to the first temperature so that the solid-state hot melt adhesive is in a molten state, and injects with first pressure
Hot melt adhesive is formed after naturally cool to room temperature to the designated surface region for the circuit board being pre-placed in specified injection mold
Protective layer, wherein the hot melt adhesive protective layer at least all covers the component on the circuit board；
There are the circuit board of the hot melt adhesive protective layer and polymer battery core to be electrically connected simultaneously the designated surface region overlay
It is adhesively fixed, forms polymer and pre-install body；
Polymer prepackage body is wrapped up, polymer battery is formed.
2. polymer battery packaging technology according to claim 1, which is characterized in that described by the designated surface region
Being covered with the step of circuit board for heating compound protective layer is electrically connected and is adhesively fixed with polymer battery core includes:
The tab of electrostrictive polymer core head is straightened, " linear type " tab is formed；
By the first end face and tab welding of the sheet metal of " L " type, second end face and welding circuit board；
The sheet metal is converted into；
The tab inflection is extremely open towards the side of polymer battery core；
The circuit board and the head of the polymer battery core are bonded using insulating cement.
3. polymer battery packaging technology according to claim 1, which is characterized in that described to pre-install body to the polymer
The step of being wrapped up include:
It is wrapped up using at least four sides of the insulation gummed paper to polymer prepackage body.
4. polymer battery packaging technology according to any one of claims 1 to 3, which is characterized in that first temperature
Including 140 DEG C~180 DEG C.
5. polymer battery packaging technology according to any one of claims 1 to 3, which is characterized in that the first pressure
Including 0.15MPa~0.5MPa.
6. a kind of polymer battery, which is characterized in that application polymer battery described in any one of claim 1 to 5 encapsulates work
Skill and obtain, including polymer battery core, the circuit board containing component, head insulation gummed paper, tail portion insulation gummed paper and side it is exhausted
Edge gummed paper, the circuit board is fixed on the head of the polymer battery core and is electrically connected with polymer battery core formation, described
The designated surface region overlay of circuit board has hot melt compound protective layer, and the hot melt compound protective layer at least all covers the circuit board
On component, the head insulation gummed paper wraps up the head of the polymer battery core, and the tail portion insulating cement paper bag is wrapped up in described
The tail portion of polymer battery core, the side insulating cement paper bag wrap up in the side of the polymer battery core.
7. polymer battery according to claim 6, which is characterized in that the head of the polymer battery core has tab,
Sheet metal is connected on the tab, the tab is mutually welded to be formed and is electrically connected by the sheet metal with the circuit board.
8. polymer battery according to claim 6, which is characterized in that the head of the polymer battery core has erecting bed
Rank, the installation step are equipped with nonconductive adhesive layer, and the circuit board is solid by the nonconductive adhesive layer and the installation step
Fixed connection.
9. according to the described in any item polymer batteries of claim 6 to 8, which is characterized in that the designated surface region includes
The lower surface and upper surface of the circuit board, the component are located on the lower surface of the circuit board, the hot melt adhesive protection
Layer covers the upper surface of the circuit board comprehensively and the component, the hot melt adhesive in the circuit board upper surface are protected
Multiple location holes are offered on layer.
10. polymer battery according to claim 9, which is characterized in that it is described hot melt compound protective layer thickness include
0.3mm~1.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810936058.5A CN109193032A (en) | 2018-08-16 | 2018-08-16 | Polymer battery and its packaging technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810936058.5A CN109193032A (en) | 2018-08-16 | 2018-08-16 | Polymer battery and its packaging technology |
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| CN112029472A (en) * | 2020-08-26 | 2020-12-04 | 深圳市神通天下科技有限公司 | Bluetooth headset battery protection layer and protection layer glue preparation method |
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| CN112820992B (en) * | 2019-11-15 | 2023-11-21 | 东莞新能德科技有限公司 | Battery and method for manufacturing same |
| CN110961323A (en) * | 2019-12-24 | 2020-04-07 | 珠海格力绿色再生资源有限公司 | Protection method for controller circuit board |
| CN112029472A (en) * | 2020-08-26 | 2020-12-04 | 深圳市神通天下科技有限公司 | Bluetooth headset battery protection layer and protection layer glue preparation method |
| CN112886108A (en) * | 2021-01-18 | 2021-06-01 | 东莞新能德科技有限公司 | Battery, battery pack, and electronic device |
| CN113540627A (en) * | 2021-07-09 | 2021-10-22 | 珠海市嘉德电能科技有限公司 | Manufacturing method for realizing internal filling of explosion-proof battery and explosion-proof battery |
| CN114824601A (en) * | 2022-04-26 | 2022-07-29 | 湖北亿纬动力有限公司 | Battery sealing structure and battery pack |
| CN114824601B (en) * | 2022-04-26 | 2024-05-03 | 湖北亿纬动力有限公司 | Battery sealing structure and battery pack |
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