CN209515762U - A kind of button cell of major diameter - Google Patents
A kind of button cell of major diameter Download PDFInfo
- Publication number
- CN209515762U CN209515762U CN201920270200.7U CN201920270200U CN209515762U CN 209515762 U CN209515762 U CN 209515762U CN 201920270200 U CN201920270200 U CN 201920270200U CN 209515762 U CN209515762 U CN 209515762U
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- Prior art keywords
- button cell
- anode
- cathode
- cathode housing
- major diameter
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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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- 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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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses a kind of button cells of major diameter, including negative cover, cathode housing, sealing ring, anode, diaphragm, cathode and electrolyte, wherein, sealing ring is tightly connected negative cover and cathode housing, and negative cover and cathode housing is made to form seal chamber, anode, diaphragm, cathode and electrolyte are set in seal chamber；Button cell further includes collecting ring that is concentric with anode and being set between anode and cathode housing, collecting ring is placed on anode, anode is set on the inside of cathode housing, collecting ring center is equipped with boss, button cell is held in boss surface to positive extreme direction from cathode housing inward and forms a concave surface when sealing molding.The button cell is when sealing molding, it forms concave surface by sealing and is held in boss surface, improve the contact problems of major diameter battery, thoroughly solving the problems, such as the battery of major diameter, power down is pressed at high temperature, the heavy-current discharge performance of battery is also improved, service life is extended.
Description
Technical field
The utility model relates to button cell field more particularly to a kind of button cells of major diameter.
Background technique
With the increasingly acceleration that electronic product develops, button cell is because its is light, small and exquisite, therefore in various miniature electronic products
In be widely used, be mainly used for the backup power supply of each electronic product, such as computer main board, electronic watch, electronic dictionary,
Electronic scale, memory card, remote controler, CPC card and electronic display etc., and the requirement of people's button type battery also increasingly improves.Button
Formula battery not only wants easy to carry, but also needs the capacity and service life of superelevation, therefore develops new button cell and could expire
The sufficient market demand.
Existing button cell includes cathode housing, negative cover and the sealing formed between cathode housing and negative cover
The intracorporal battery core of chamber and electrolyte, battery core include anode, diaphragm and cathode etc., and anode, diaphragm and cathode are constituted after successively stacking
Battery core.Button cell will appear situations such as mobile battery core, leakage in use, influence service life.
Utility model content
In view of this, the utility model embodiment provides a kind of battery for solving major diameter asking in high temperature power down pressure
Topic, also improves the button cell of the major diameter of the heavy-current discharge performance of battery.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
The utility model embodiment provides a kind of button cell of major diameter, including negative cover, cathode housing, sealing
Circle, anode, diaphragm, cathode and electrolyte, wherein the sealing ring is tightly connected the negative cover and the cathode housing, and
The negative cover and the cathode housing is set to form seal chamber, the anode, diaphragm, cathode and electrolyte are set to the seal chamber
It is interior；The button cell further includes afflux that is concentric with the anode and being set between the anode and the cathode housing
Ring, the collecting ring are placed on the anode, and the anode is set on the inside of cathode housing, and the collecting ring center is equipped with convex
Platform, the cathode housing are held in the boss surface to positive extreme direction inward and form a concave surface.
Wherein, through-hole is evenly arranged on the collecting ring, the through-hole diameter is 3.0-7.0mm, and the collecting ring is thick
Degree is 0.1-0.2mm.
Wherein, the through-hole number is at least 6.
Wherein, the boss is at least one following shape: round, square type, ladder type, inverted U and circular arc type.
Wherein, the diameter of the button cell is 30-50mm, with a thickness of 2.0-8.0mm.
Wherein, the concave radius is 28-34mm.
The button cell of major diameter provided by the embodiment of the utility model, including negative cover, cathode housing, sealing ring, just
Pole, diaphragm, cathode and electrolyte, wherein the sealing ring is tightly connected the negative cover and the cathode housing, and makes described
Negative cover and the cathode housing form seal chamber, and the anode, diaphragm, cathode and electrolyte are set in the seal chamber；Institute
Stating button cell further includes collecting ring that is concentric with the anode and being set between the anode and the cathode housing, described
Collecting ring is placed on the anode, and the anode is set on the inside of cathode housing, and the collecting ring center is equipped with boss, described
Cathode housing is held in the boss surface to positive extreme direction inward and forms a concave surface.The button cell leads to when sealing molding
It crosses sealing to form the concave surface and be held in the boss surface, improves the contact problems of major diameter battery, prevent battery from existing
It pops under high temperature, promotes the security performance of battery at high temperature；Guarantee that battery interior contact in the case where high temperature has expansion is good
It is good, it thoroughly solves the problems, such as that the battery of major diameter is pressed in high temperature power down, also improves the heavy-current discharge performance of battery, extend
Service life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of button cell in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of collecting ring in an embodiment of the present invention.
Specific embodiment
In order to better illustrate this embodiment, the certain components of attached drawing have omission, zoom in or out, and do not represent actual product
Size；To those skilled in the art, the omitting of some known structures and their instructions in the attached drawings are understandable.
For the ordinary skill in the art, above-mentioned term can be understood in the concrete meaning of the utility model with concrete condition.
The technical solution of the utility model is described further with reference to the accompanying drawings and examples.
Embodiment one
It is the button cell of major diameter provided by the embodiment of the utility model, including negative cover 1, cathode housing referring to Fig. 1
2, sealing ring 3, anode 4, diaphragm 5, cathode 6 and electrolyte, wherein the sealing ring 3 is tightly connected the negative cover 1 and described
Cathode housing 2, and the negative cover 1 and the cathode housing 2 is made to form seal chamber, described positive 4, diaphragm 5, cathode 6 and electricity
Liquid is solved to be set in the seal chamber；The button cell further include with it is described positive 4 concentric and be set to described positive 4 and described
Collecting ring 7 between cathode housing 2, the collecting ring 7 are placed on described positive 4, and described positive 4 are set to 2 inside of cathode housing,
7 center of collecting ring is equipped with boss 8, and the cathode housing is held in the boss surface to positive extreme direction inward and is formed
One concave surface 10.
Wherein, the lower end surface of anode 4 towards inside cathode housing 2, upper surface is towards diaphragm 5, the lower end surface direction of cathode 6
Diaphragm 5, upper surface are towards inside negative cover 1.
Anode 4 can be made of positive electrodes such as manganese dioxide；Diaphragm 5 can be tunica fibrosa etc., to separate positive 4 Hes
Cathode 6 simultaneously can adsorb electrolyte；Cathode 6 can be made of negative electrode materials such as lithiums.Negative cover 1 and cathode housing 2 are metal
Circular lid structure made of material, sealing ring 3 can be as made by the insulating materials with sealing performance, for example can be
Annular plastics circle or annular rubber ring etc..The diameter of diaphragm 5 is not only greater than the diameter of the cross section of anode 4, also greater than cathode 6
The diameter of cross section, to guarantee completely to separate anode 4 and cathode 6.
It is to be appreciated that the structures such as the negative cover 1, cathode housing 2, sealing ring 3, diaphragm 5 and cathode 6 can with it is existing
There is the structure of corresponding component in button cell almost the same, is no longer specifically described in the present embodiment.
As an optional embodiment, the collecting ring 7 is compressed on anode 4 in positive 4 production processes, forms one
Body.Described positive 4 are set in the cathode housing 2,7 center of collecting ring be equipped with boss 8, the cathode housing to
Positive extreme direction is held in 8 surface of boss inward and forms a concave surface 10.
Here, when button cell is sealed and formed, the concave surface 10 and the boss 8 that when sealing is formed support contact,
So, it is ensured that battery is popping at high temperature, promotes the security performance of battery at high temperature；Further, guarantee that battery exists
High temperature has interior contact in the case where expansion good, thoroughly solves the problems, such as that the battery of major diameter is pressed in high temperature power down.
As an optional embodiment, the boss 8 be can be set in the two sides of the center of collecting ring 7, not
In the case where the balance for influencing button cell, here, specific location is unrestricted.
In an optional embodiment, through-hole 9 is evenly arranged on the collecting ring 7,9 diameter of through-hole is 3.0-
7.0mm, the collecting ring is with a thickness of 0.1-0.2mm.
Here, in 4 production process of anode of button cell, collecting ring 7 can be arranged on positive 2 surfaces, can be
It is embedded in above, collecting ring 7 and anode 2 can be punch forming in positive 2 production processes, be made by technologic concave structure
It obtains and forms boss 8 towards 2 side of cathode housing in collecting ring 7.
As an optional embodiment, 9 numbers of the through-hole are at least 6.
Generally, 9 numbers of the through-hole are 6 to 12, further, referring to Fig.2, being uniformly arranged on the collecting ring 7
There is through-hole 9, here, the number of through-hole is 12, and 9 diameter of through-hole is 3.0-7.0mm, and the collecting ring is with a thickness of 0.1-
0.2mm。
In the above-described embodiment, the through-hole 9 is uniformly arranged on the collecting ring 7, the through-hole 9 can allow described
The active material of anode 2 has more volumes in the collecting ring 7, to accommodate more active materials, promotes battery and holds
Amount；The through-hole 9 is also beneficial to electrolyte infiltration described positive 2 simultaneously.
In an optional embodiment, the boss 8 is at least one following shape: round, square type, ladder type, inverted U with
And circular arc type.
In an optional embodiment, the diameter of the button cell is 30-50mm, with a thickness of 2.0-8.0mm.
Here, button cell can be CR3832,
In an optional embodiment, the button cell when sealing molding, from cathode housing 2 to positive 4 directions toward
In form a concave surface 10,10 diameter of concave surface is 28-34mm.
Here, type deformation the screen resilience for forbidding deformation can be provided outward during the high warm extrusion of button cell rises,
The stability that ensure that cathode housing 2 Yu boss 8, ensure that battery high temperature resistant, and interior contact is good.
Embodiment two
In the present embodiment by taking battery size is the major diameter button cell of CR3832 as an example, the CR3832 cell diameter
37.98-38.00 thickness 3.0-3.3mm；In the following, by specifically testing to the big of improved CR3832 provided in this embodiment
The performance of the button cell of diameter is verified, specific as follows:
(1) volume test of gradient constant-current discharge is tested
In order to detect the volumetric properties of battery, quick constant current ladder is carried out to the button cell of the CR3832 of the utility model
Discharge test, using 2032-4BL battery (4 2032 batteries are in parallel) as the comparative example of CR3832；
Referring to table 1,3 CR3832 batteries is taken to discharge in this experiment, which is
At 20 ± 2 DEG C of temperature and relative humidity 35%~75%, constant current continuous discharge: load 20mA continuous discharge to 2.0V, rest
3h；10mA continuous discharge is loaded to 2.0V, rest 3h；5mA continuous discharge is loaded to 2.0V, rest 3h；Load 0.5mA is continuously put
Electricity is to 2.0V.
| Serial number | 20mA | 10mA | 5mA | 0.5mA | Total capacity |
| 1 | 768.588 | 194.261 | 57.933 | 49.976 | 1070.758 |
| 2 | 793.683 | 144.451 | 56.433 | 61.394 | 1055.961 |
| 3 | 792.559 | 153.614 | 64.963 | 66.272 | 1077.408 |
Table 1
Referring to table 2,2032-4BL battery (4 2032 batteries are in parallel) is taken to discharge in this experiment, the quick constant current rank
Terraced discharge test condition is the constant current continuous discharge at 20 ± 2 DEG C of temperature and relative humidity 35%~75%: load 20mA is continuous
It is discharged to 2.0V, rest 3h；10mA continuous discharge is loaded to 2.0V, rest 3h；5mA continuous discharge is loaded to 2.0V, rest 3h；
0.5mA continuous discharge is loaded to 2.0V.
| Serial number | 20mA | 10mA | 5mA | 0.5mA | Total capacity |
| 1 | 481.135 | 298.526 | 62.281 | 11.327 | 853.269 |
| 2 | 499.973 | 262.917 | 72.558 | 13.132 | 849.580 |
| 3 | 500.709 | 260.28 | 75.848 | 14.779 | 851.616 |
Table 2
Tables 1 and 2 is compared it is found that compared to 2032-4BL battery (4 2032 batteries are in parallel), using the utility model life
The major diameter CR3832 battery of production has higher capacity.
(2) open-circuit voltage testing experiment after a week is stored for 85 DEG C of high temperature
In order to detect the high-temperature behavior of battery, 85 DEG C of high temperature storages are carried out to the button cell of the CR3832 of the utility model
Test.Test method are as follows: first test the open-circuit voltage of battery, battery is then placed on the forced air drying that temperature is 85 ± 2 DEG C and is dried
In case, the open-circuit voltage of battery is tested in storage after a week.5 batteries are taken to be tested in this experiment, referring to table 3, data are as follows:
Table 3
Existing common batteries are compared, by taking CR2450 as an example, referring to table 4, data are as follows:
Table 4
Comparison is not as can be seen that improved CR3832 has the case where power down pressure after 85 DEG C of high temperature storages, and CR2450
Battery after 85 DEG C of high temperature storages, can all occur the case where power down pressure substantially.
In conclusion compared with prior art, the button cell of major diameter provided by the embodiment of the utility model it is beneficial
Effect be by cleverly devising collecting ring 7 in positive 4 production processes and being provided with boss 8 on collecting ring 7, it is described
Cathode housing is held in the boss surface to positive extreme direction inward and forms a concave surface, and the contact for improving major diameter battery is asked
Topic, so that button cell integrates the simply various advantages of good stability, high capacity, high service life, manufacture craft.
Specifically,
1, the shelf characteric of battery at high temperature is promoted
2, it prevents battery from popping at high temperature, promotes the security performance of battery at high temperature
3, guarantee that battery interior contact in the case where high temperature has expansion is good, thoroughly solve the battery of major diameter in height
The problem of warm power down is pressed.
The above, the only preferred embodiment of the utility model, are not intended to limit the protection of the utility model
Range.All any modifications, equivalent replacements, and improvements made within the spirit and scope of the utility model etc. are all contained in this
Within the protection scope of utility model.
Claims (6)
1. a kind of button cell of major diameter, including negative cover, cathode housing, sealing ring, anode, diaphragm, cathode and electrolyte,
Wherein, the sealing ring is tightly connected the negative cover and the cathode housing, and makes the negative cover and the cathode housing
Seal chamber is formed, the anode, diaphragm, cathode and electrolyte are set in the seal chamber；It is characterized in that, the button cell
It further include collecting ring that is concentric with the anode and being set between the anode and the cathode housing, the collecting ring is placed in
It is described anode on, it is described anode be set to cathode housing on the inside of, the collecting ring center be equipped with boss, the cathode housing to
Positive extreme direction is held in the boss surface inward and forms a concave surface.
2. a kind of button cell of major diameter according to claim 1, which is characterized in that be uniformly arranged on the collecting ring
There is through-hole, the through-hole diameter is 3.0-7.0mm, and the collecting ring is with a thickness of 0.1-0.2mm.
3. a kind of button cell of major diameter according to claim 2, which is characterized in that the through-hole number is at least 6
It is a.
4. a kind of button cell of major diameter according to claim 1, which is characterized in that the boss be following shape extremely
It is one of few: round, square type, ladder type, inverted U and circular arc type.
5. a kind of button cell of major diameter according to claim 1, which is characterized in that the diameter of the button cell is
30-50mm, with a thickness of 2.0-8.0mm.
6. a kind of button cell of major diameter according to claim 1, which is characterized in that the concave radius is 28-
34mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920270200.7U CN209515762U (en) | 2019-03-04 | 2019-03-04 | A kind of button cell of major diameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920270200.7U CN209515762U (en) | 2019-03-04 | 2019-03-04 | A kind of button cell of major diameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209515762U true CN209515762U (en) | 2019-10-18 |
Family
ID=68204940
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920270200.7U Active CN209515762U (en) | 2019-03-04 | 2019-03-04 | A kind of button cell of major diameter |
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| Country | Link |
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| CN (1) | CN209515762U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110048137A (en) * | 2019-05-21 | 2019-07-23 | 宜昌力佳科技有限公司 | The preparation method of button cell and button cell |
-
2019
- 2019-03-04 CN CN201920270200.7U patent/CN209515762U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110048137A (en) * | 2019-05-21 | 2019-07-23 | 宜昌力佳科技有限公司 | The preparation method of button cell and button cell |
| CN110048137B (en) * | 2019-05-21 | 2024-05-21 | 宜昌力佳科技有限公司 | Button cell and preparation method thereof |
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