CN206639838U - Button cell with afflux ring support - Google Patents
Button cell with afflux ring support Download PDFInfo
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- CN206639838U CN206639838U CN201720352346.7U CN201720352346U CN206639838U CN 206639838 U CN206639838 U CN 206639838U CN 201720352346 U CN201720352346 U CN 201720352346U CN 206639838 U CN206639838 U CN 206639838U
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- ring support
- lug
- battery core
- pole shell
- button cell
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- 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
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Abstract
It the utility model is related to a kind of button cell with afflux ring support, including the first and second pole shells, insulated enclosure circle, battery core bodies and ring support, first pole hull shape is into accommodating cavity, second pole shell is combined to seal accommodating cavity with the opening of the first pole shell, insulated enclosure circle is arranged on the edge of the second pole shell with electrically isolation first, second pole shell, battery core bodies are in accommodating cavity, ring support is located between battery core bodies and the first pole shell, and the inner side perisporium of ring support adjoins battery core bodies, battery core bodies are respectively by first, second lug and first, second pole shell is electrically connected with, first lug of ring support abutment portion is to strengthen the bonding strength of the first lug and the first pole shell.Above-mentioned button cell by setting ring support in the lumen, and the lug of ring support abutment portion, to strengthen the electrical connection between lug and pole shell, ring support directly or indirectly plays a part of collector, makes the electrical connection of the electrode and metal shell of battery core bodies more easy and effective.
Description
Technical field
Button (or button) field of batteries is the utility model is related to, more particularly to a kind of knob with afflux ring support
Detain battery.
Background technology
Button cell is the minicell that height is less than 1 with diameter ratio example and radial cross-section is circle.It is all in principle
It is that the discrepant two kinds of materials of electrochemical potential tool can be as the both positive and negative polarity active material of potential button cell, cooperation must
The other materials wanted can assemble the button cell with different rated voltages.Button cell has been commonly utilized in all at present
In more industrial control electronics and consumable electronic product, especially rated voltage is 3V or so button cell, such as one
Secondary property lithium manganese button cell, chargeable lithium manganese button cell, and ultracapacitor button cell etc..The electronics increasingly minimized
Product, such as intelligence wearing electronic product, chargeable button cell is proposed smaller, capacity is bigger, operating voltage more
High and bigger operating current requirement.Therefore Novel button battery all needs at two aspects of material technology and assembling manufacturing technology
Reform and develop.When button cell inner chamber is deep, at least afflux of a pole and extraction is relatively difficult in both positive and negative polarity
, so the processing of electrical contact and Mechanical Contact including lug and collector, reliability and raising to ensureing battery core work
The yield rate of battery manufacture, it is significant, it is one of problem of assembling manufacturing technological innovation.
In general, the button cell of edge curling seal is by anode cover, negative electrode casing, plastic seal ring, collector, electrolyte and electricity
Core forms.The concrete form of battery core is by battery electrochemical material system, capacity requirement, discharge-rate performance requirement and manufacturing capacity
Together decided on etc. composite factor.Generally, the sequence group of anode pole piece, barrier film and cathode pole piece composition is wound or is laminated, and is applied
Battery core is formed with necessary auxiliary material, wherein the structure being laminated includes at least one sequence group.Battery core is filled in button cell
In inner chamber, both positive and negative polarity electrode has different modes for different type button cell from the electrical connection of positive and negative shell, and to the greatest extent may be used
It is the target that cell designer is pursued that the volume ratio that battery core occupies in the lumen, which can be increased,.Filled in edge curling seal formula button cell
The final stage matched somebody with somebody, anode cover edge of opening are pressed on the plastic seal ring on negative electrode casing periphery, and three accessories are in close contact
To realize cell sealing.Formed it is clear that the inner chamber of button cell is substantially surrounded by both positive and negative polarity shell and sealing ring, when interior
When chamber is fully utilized, in battery core both positive and negative polarity the electrical connection of at least a pole and pole shell become difficult, especially inner chamber is deep
When spending larger.
Utility model content
Based on this, one of the purpose of this utility model is to provide a kind of new button cell with ring support,
The problem of battery core and the electrical connection difficulty of pole shell can be overcome.
A kind of button cell with afflux ring support, including the first pole shell, the second pole shell, insulated enclosure circle and battery core
Body, into accommodating cavity, second pole shell is combined described accommodating to seal first pole hull shape with the opening of first pole shell
Chamber, the insulated enclosure circle are arranged on the edge of the second pole shell with electrically the first pole shell of isolation and the second pole shell, the battery core
Body is in the accommodating cavity, in addition to ring support, the ring support between the battery core bodies and the first pole shell, and
The inner side perisporium of ring support adjoins the battery core bodies, and the battery core bodies are electrically connected with by the second lug and the second pole shell, institute
State battery core bodies to be electrically connected with by the first lug and the first pole shell, the ring support abuts at least part of first lug to add
The bonding strength of strong first lug and the first pole shell.
In one of the embodiments, first lug extends to bottom and first pole shell of the ring support
Between, the bottom of the ring support abuts first lug.
In one of the embodiments, first lug further extends to outer perimeter wall and the institute of the ring support
State between the first pole shell.
In one of the embodiments, first pole shell is anode cover, and second pole shell is negative electrode casing, described first
Lug is anode ear, and second lug is negative electrode lug, and the button cell also includes the aluminium foil being connected with the anode ear, institute
A part for aluminium foil is stated between the battery core bodies and anode cover, another part is between the anode ear and anode cover.
In one of the embodiments, the outer perimeter wall of the ring support and first pole hull shape into contact, line
Contact or face contact.
In one of the embodiments, the ring support is conducting loop-shaped support, or the ring support is electric exhausted
Edge ring support.
In one of the embodiments, the ring support is conducting loop-shaped support, and first lug extends to described
Between the inner side perisporium of ring support and the battery core bodies.
In one of the embodiments, first lug further extend to the top of the ring support with it is described absolutely
Abutted between edge sealing ring and by the top of the ring support with the insulated enclosure circle.
In one of the embodiments, the ring support is made up of the material with loose structure, the ring support
The aperture of loose structure be micron order or nanoscale.
In one of the embodiments, through hole is also formed on the ring support, the aperture of the through hole is grade.
Above-mentioned button cell by setting ring support, and the lug of ring support abutment portion in the lumen, to strengthen
Electrical connection between lug and pole shell, ring support directly or indirectly play a part of collector, make the electrode and gold of battery core bodies
The electrical connection for belonging to shell is more easy and effective.
Brief description of the drawings
Fig. 1 is the structural representation of the button cell with afflux ring support of the utility model first embodiment；
Fig. 2 is the structural representation of the button cell with afflux ring support of the utility model second embodiment；
Fig. 3 is the structural representation of the button cell with afflux ring support of the utility model 3rd embodiment；
Fig. 4 is the structural representation of the button cell with afflux ring support of the utility model fourth embodiment.
Embodiment
Button cell provided by the utility model with afflux ring support, including anode cover, negative electrode casing, insulated enclosure
Circle and battery core bodies.Anode cover, negative electrode casing, insulated enclosure circle are collectively forming accommodating cavity, negative electrode casing combined with the opening of anode cover with
The accommodating cavity is sealed, insulated enclosure circle is arranged between anode cover and negative electrode casing electrically to completely cut off anode cover and negative electrode casing, electricity
Core body is in accommodating cavity.The button cell also includes ring support, the ring support between battery core bodies and pole shell,
The inner side perisporium of ring support adjoins battery core bodies, and ring support is made up of conductive material or non-conducting material.When ring support by
When conductive material is made, only there is electrical contact with both anode cover, negative electrode casing one, and with another pole shell without electrical contact.Annular branch
Contact between the outer perimeter wall of frame and consecutive roots shell can be at least one of a contact, linear contact lay and face contact.Change speech
It, space can be formed between the outer perimeter wall and consecutive roots shell of ring support, can also tight, but must contact a little, line
At least one of contact and face the contact way of contact.The bulk material of ring support can be non-porous structure, or aperture between
Nanometer is to millimetre-sized porous or foaming structure.Can be solid construction between the inner side perisporium and outer perimeter wall of ring support,
Can also be any tunnel-like, through hole class formation, the aperture of through hole is grade, namely the inner side perisporium of ring support and outside
Loose structure in through-hole structure between perisporium, with the bulk material of ring support, both apertures are not in an order of magnitude
On.Ring support also directly or indirectly act as one of them of battery core bodies while the structural strength of button cell is ensured
The effect of the collector of electrode.The electrode of battery core bodies and the connection of ring support can be contacted, in the contact of linear contact lay and face
At least one.
Usually, it is that aluminium, copper, nickel, aluminium nickel are compound that the electricity of the positive pole of battery core bodies and cathode pole piece, which draws the material used,
At least one of material, cupro-nickel composite, stainless steel band, lithium, lithium alloy, the geometric properties shown can be bar, band,
At least one of disk.The processing mode of extraction includes nature extraction, electric resistance welding, supersonic welding, Laser Welding etc..It is if logical
Welding switching is crossed, the electric leading-out structure is generally referred to as lug, herein for purposes of illustration only, by not by welding the electricity transferred
Learn deriving structure and be also referred to as lug.In order to illustrate the positive pole in battery core bodies, cathode pole piece are how to realize the point with ring support
Contact, linear contact lay and face contact, will be illustrated, it is possible to understand that these examples are not formed to corresponding contact side in the following example
The limitation of the realization of formula.
As shown in figure 1, the button cell with afflux ring support that the utility model first embodiment provides, including just
Pole shell 3, negative electrode casing 2, insulated enclosure circle 4, ring support 5 and battery core bodies 6.
The anode cover 3, negative electrode casing 2 and insulated enclosure circle 4 form the inner chamber of button cell, annular branch by accurate combination
Frame 5, battery core bodies 6 etc. then house in the lumen.The battery core bodies 6 can be made up of anode pole piece, barrier film and cathode pole piece
Sequence group is made by winding or at least once stacking of plane.The battery core bodies 6 contain electrolyte, and electrolyte can be liquid
State, colloid or solid, the positive/negative plate of the battery core bodies and the electrical connection of anode cover 3, negative electrode casing 2 are each via particular form
Collector or lug realized with least one of a contact, linear contact lay, the face way of contact.In one embodiment, the electricity
Core body 6 is electrically connected with by anode ear and anode cover 3, and the battery core bodies 6 are electrically connected with by negative electrode lug and negative electrode casing 2, and Fig. 1
Not shown in negative electrode lug, but show that anode ear 7 and anode cover 3 are formed and electrically connect.
Specifically, the anode cover 3 includes shell bottom and side wall, shell bottom and side wall surround one jointly has the accommodating of opening
Chamber.The insulated enclosure circle 4 is arranged on the edge of negative electrode casing 2, the negative electrode casing 2 combined with the opening of the anode cover 3 with
The accommodating cavity is sealed, and is electrically completely cut off by insulated enclosure circle 4 between negative electrode casing 2 and anode cover 3.Insulated enclosure circle 4 can be by
Plastics are made.
In this embodiment, the ring support 5 is made up of the material with loose structure, the ring support 5 it is more
The aperture of pore structure is micron order or nanoscale.Preferably, the aperture of the loose structure in the ring support is received less than 100
Rice.Aperture available gas absorption method or the mercury injection method measure of loose structure.The inner side perisporium of the ring support 5 adjoins the electricity
Core body 6.The outer perimeter wall of the ring support 5 adjoins the inner surface of the side wall of the anode cover 3.The top of the ring support 5
The insulated enclosure circle 4 is adjoined in face, and the shell bottom of the anode cover 3 is adjoined in the bottom surface of the ring support 5.The ring support 5
It can not only ensure that negative electrode casing 2 and anode cover 3 are indeformable when combining, can also make full use of battery because it has loose structure
Intracavity space, for storing electrolyte.
In one embodiment, the porosity of the ring support 5 is not less than 30%.Porosity refers to all holes in ring support
The ratio between apparent volume of gap (loose structure) volume sum and the ring support.In one preferred embodiment, the annular branch
The porosity of frame 5 is 90%.In one specific embodiment, low alloyed steel powder, foaming agent and curing agent can uniformly be mixed, are rolled into
Type, foamed, solidification and sintering are then heated in a vacuum, the ring support 5 that porosity is 90% is made.
In some other embodiments, the ring support 5 can be porous metal fiber ring support or foam metal ring
Shape support.Foam metal refers to the special metal material containing foam stomata.These metal materials can be aluminium, aluminium alloy, nickel,
One kind in nickel alloy, stainless steel, titanium.The ring support 5 can also be by various metals and alloy and refractory metal
Carbide, nitride, boride and silicide, fluoro-containing plastic etc. are made.
At least part of the anode ear 7 is abutted by the ring support 5, is strengthened with this between battery core bodies 6 and anode cover 3
Catchment effect.In embodiment shown in Fig. 1, the anode ear 7 extends to the bottom of the ring support 5 and the anode cover
Between 3, the bottom of the ring support 5 abuts the anode ear 7.Because the side wall of ring support 5 is with respect to battery overall dimensions
It is smaller, thus it is to realize connection with a contact or linear contact lay that can be approximately considered between anode ear 7 and ring support 5.
The material of the above-mentioned ring support 5 included is conductive material, namely ring support 5 is conducting loop-shaped support,
It is however noted that because the ring support 5 in the embodiment plays a part of strengthening the connection between anode ear 7 and anode cover 3,
Ring support 5 simply plays a part of collector indirectly, and ring support 5 can also be made from a material that be electrically non-conductive, namely the ring
Shape support 5 can be electrical insulation ring shape support.
As shown in Fig. 2 the button cell structure that second embodiment provides is similar with structure shown in Fig. 1, difference is,
The anode ear 7 of the battery core bodies 6 first realizes with an aluminium foil 8 or aluminium flake and electrically connects, the mode of electrical connection can be contact, line connects
Touch or face contacts, can use directly to be pressed into contact with or weld aluminium foil 8 and anode ear 7, the one of the aluminium foil 8
Part is between the battery core bodies 6 and anode cover 3, and another part is between the anode ear 7 and anode cover 3.Positioned at institute
Described another part between anode ear 7 and anode cover 3 is stated then to be abutted by the ring support 5, thus more further guarantor
Hinder the electrical connection between battery core bodies 6 and anode cover 3.
As shown in figure 3, the button cell structure that 3rd embodiment provides is similar with structure shown in Fig. 1, difference is,
The anode ear 7 of the battery core bodies 6 is further extended between outer perimeter wall and the anode cover 3 of the ring support 5.Pass through
Extending anode ear 7 causes to form connection in the form of face contacts with the shell bottom of anode cover 3 and side wall, then by ring support 5
Abut, thus effectively realize the electrical connection between battery core bodies 6 and anode cover 3.
As shown in figure 4, the button cell structure that fourth embodiment provides is with the part of structure main difference shown in Fig. 1,
The anode ear 7 is extended between inner side perisporium and the battery core bodies 6 of the ring support 5.Because anode ear 7 is in battery core bodies
Connection between 6 bottom and anode cover 3, which can be regarded as, a little to be contacted, to make the connection between battery core bodies 6 and anode cover 3 effective
Degree is lifted, and ring support 5 is preferably conducting loop-shaped support in the embodiment, thus extends to the inner side week of the ring support 5
Anode ear 7 between wall and the battery core bodies 6 can be formed with the shell bottom of anode cover 3 and side wall indirectly by ring support 5
Effectively electrical connection, to ensure the validity electrically connected between battery core bodies 6 and anode cover 3.
Further, the anode ear 7 also may extend to the top of the ring support 5 and the insulated enclosure circle 4 it
Between.
In the various embodiments described above, in the embodiment with aluminium foil 8, aluminium foil 8 is arranged on positive pole all the time, i.e., aluminium foil 8 with just
Lug 7, anode cover 3 connect, and the pole shell in addition, in figure being denoted as 2 both can be anode cover or negative electrode casing, phase
Answer be denoted as 3 pole shell then with the opposite polarity for the pole shell for being denoted as 2.In other words, except the embodiment with aluminium foil 8, other
Anode cover 3, the polarity of negative electrode casing 2 can be exchanged in embodiment, and the polarity of corresponding, anode ear 7 and negative electrode lug is also exchanged therewith.
The utility model provides a kind of electrical connection of the positive and negative electrode and metal shell of button cell using ring support
Implementation, the electrode for solving the battery core bodies with larger depth of inner cavity draw problem.
The manufacturing process of above-mentioned button cell is further illustrated in conjunction with several different example of making below.
Example 1
Negative electrode casing 2, anode cover 3 and the ring support 5 of goal standard prefabricated first, then insulated enclosure circle 4 be injection-moulded in
Negative electrode casing 2 weeks along and form external member.With the ripe lithium ion battery coil core technique of industry by aluminium base lithium manganate cathode pole piece, every
Film and Copper base material Carbon anode pole piece roll into the battery core with lug, and argon gas protection vacuum glove box is inserted after fully drying,
By negative pole lug welding on negative electrode casing 2, ring support 5 is then inserted into, now anode ear is still free end, injects quantitative electrolysis
Liquid.As shown in Figure 1, anode ear 7 extends to the bottom of ring support 5.Finally the edge of opening of anode cover 3 is pressed together on mould
Button cell is formed on insulated enclosure circle 4.Now, anode ear 7 is pressed between ring support 5 and anode cover 3, realizes electricity
The electrical connection of the anode cover 3 of the positive pole of core body 6 and battery.The actual thickness of anode ear 7 is typically far smaller than the outer casing thickness of battery,
The thickness of lug shown in Fig. 1 is only described the problem and illustrated for convenience, and the size in other diagrams is also only signal, does not form pair
The limitation of full-size(d).
Example 2
Substantially identical with the operation in example 1, difference is that aluminium foil 8 is laid on the round cavity surface of anode cover 3 in advance
Or there is the aluminium foil of conductive material film layer on surface.
Example 3
Unlike example 1, anode ear 7 passes through the bottom of ring support 5, in the lateral wall and positive pole of ring support 5
The position of insulated enclosure circle 4 is extended close between the madial wall of shell 3, as shown in Figure 3.
Example 4
Unlike example 1, anode ear 7 extends to ring between the madial wall of the lateral wall of battery core bodies 6 and ring support 5
The position that shape support 5 contacts with insulated enclosure circle 4, as shown in Figure 4.
Above-mentioned example only shows the realization of button cell structure, described assemble sequence and mode, and battery core bodies are related to
Material category and battery core bodies mode, shape is made, do not form to limitation of the present utility model.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that the common skill for this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. a kind of button cell with afflux ring support, including the first pole shell, the second pole shell, insulated enclosure circle and battery core
Body, into accommodating cavity, second pole shell is combined described accommodating to seal first pole hull shape with the opening of first pole shell
Chamber, the insulated enclosure circle are arranged on the edge of the second pole shell with electrically the first pole shell of isolation and the second pole shell, the battery core
Body is in the accommodating cavity, it is characterised in that is also located at the battery core bodies and first including ring support, the ring support
Between the shell of pole, and the inner side perisporium of ring support adjoins the battery core bodies, and the battery core bodies are by the second lug and the second pole shell
It is electrically connected with, the battery core bodies are electrically connected with by the first lug and the first pole shell, and the ring support abuts at least part of
First lug is to strengthen the bonding strength of first lug and the first pole shell.
2. the button cell according to claim 1 with afflux ring support, it is characterised in that first lug prolongs
Extend between the bottom of the ring support and first pole shell, the bottom of the ring support abuts first lug.
3. the button cell according to claim 2 with afflux ring support, it is characterised in that first lug enters
One step is extended between the outer perimeter wall of the ring support and first pole shell.
4. the button cell according to claim 2 with afflux ring support, it is characterised in that first pole shell is
Anode cover, second pole shell are negative electrode casing, and first lug is anode ear, and second lug is negative electrode lug, the knob
Button battery also includes the aluminium foil that be connected with the anode ear, the part of the aluminium foil be located at the battery core bodies and anode cover it
Between, another part is between the anode ear and anode cover.
5. the button cell according to claim 2 with afflux ring support, it is characterised in that the ring support
Outer perimeter wall and first pole hull shape into contact, linear contact lay or face contact.
6. the button cell according to claim 2 with afflux ring support, it is characterised in that the ring support is
Conducting loop-shaped support, or the ring support are electric insulation ring support.
7. the button cell according to claim 1 with afflux ring support, it is characterised in that the ring support is
Conducting loop-shaped support, first lug are extended between the inner side perisporium of the ring support and the battery core bodies.
8. the button cell according to claim 7 with afflux ring support, it is characterised in that first lug enters
One step extend between the top of the ring support and the insulated enclosure circle and by the ring support top with it is described
Insulated enclosure circle abuts.
9. the button cell with afflux ring support according to claim 1-8 any one, it is characterised in that described
Ring support is made up of the material with loose structure, and the aperture of the loose structure of the ring support is micron order or nanometer
Level.
10. the button cell according to claim 9 with afflux ring support, it is characterised in that the ring support
On also form through hole, the aperture of the through hole is grade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720352346.7U CN206639838U (en) | 2017-04-01 | 2017-04-01 | Button cell with afflux ring support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720352346.7U CN206639838U (en) | 2017-04-01 | 2017-04-01 | Button cell with afflux ring support |
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| CN206639838U true CN206639838U (en) | 2017-11-14 |
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| CN201720352346.7U Active CN206639838U (en) | 2017-04-01 | 2017-04-01 | Button cell with afflux ring support |
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| CN108054441A (en) * | 2017-12-29 | 2018-05-18 | 泉州劲鑫电子有限公司 | A kind of high current Ni-MH battery and preparation method thereof |
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| CN109065822A (en) * | 2018-09-20 | 2018-12-21 | 刘秦 | Button cell |
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| CN109148742A (en) * | 2018-08-24 | 2019-01-04 | 深圳市能锐创新科技有限公司 | Fastening lithium ionic cell and its shell and button laminated lithium ion battery |
| CN109065823A (en) * | 2018-09-20 | 2018-12-21 | 刘秦 | Button cell |
| CN109065822A (en) * | 2018-09-20 | 2018-12-21 | 刘秦 | Button cell |
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| CN109065822B (en) * | 2018-09-20 | 2024-04-05 | 刘秦 | Button cell |
| CN111430594A (en) * | 2020-04-02 | 2020-07-17 | 龙岩高格微扣科技有限公司 | High-temperature-resistant button battery and manufacturing process thereof |
| CN111354910A (en) * | 2020-04-24 | 2020-06-30 | 福建南平延平区南孚新能源科技有限公司 | Button battery pole shell and electrode lug traceless welding method, welding structure and product |
| CN111354909A (en) * | 2020-04-24 | 2020-06-30 | 福建南平延平区南孚新能源科技有限公司 | Button battery pole shell and electrode lug traceless welding method, welding structure and product |
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| CN111354910B (en) * | 2020-04-24 | 2023-12-05 | 福建南平延平区南孚新能源科技有限公司 | Button cell electrode shell and electrode lug traceless welding method, welding structure and product |
| CN111354909B (en) * | 2020-04-24 | 2023-12-26 | 福建南平延平区南孚新能源科技有限公司 | Button cell electrode shell and electrode lug traceless welding method, welding structure and product |
| CN111354914B (en) * | 2020-04-24 | 2024-03-22 | 福建南平延平区南孚新能源科技有限公司 | Button cell electrode shell and electrode lug traceless welding method, welding structure and product |
| CN111354914A (en) * | 2020-04-24 | 2020-06-30 | 福建南平延平区南孚新能源科技有限公司 | Button battery pole shell and electrode lug traceless welding method, welding structure and product |
| CN111370638A (en) * | 2020-05-11 | 2020-07-03 | 福建南平延平区南孚新能源科技有限公司 | Production method of button battery without welding trace and button battery manufactured by same |
| CN111370636A (en) * | 2020-05-11 | 2020-07-03 | 福建南平延平区南孚新能源科技有限公司 | Production method of button battery without welding trace and button battery manufactured by same |
| CN111370638B (en) * | 2020-05-11 | 2024-01-30 | 福建南平延平区南孚新能源科技有限公司 | Production method of button cell without welding trace and prepared button cell |
| CN113937395A (en) * | 2021-09-30 | 2022-01-14 | 新余赣锋电子有限公司 | Button cell |
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