CN208873830U - A kind of lithium coin cells of the hybrid pole piece steel loop of big aperture - Google Patents
A kind of lithium coin cells of the hybrid pole piece steel loop of big aperture Download PDFInfo
- Publication number
- CN208873830U CN208873830U CN201821531380.1U CN201821531380U CN208873830U CN 208873830 U CN208873830 U CN 208873830U CN 201821531380 U CN201821531380 U CN 201821531380U CN 208873830 U CN208873830 U CN 208873830U
- Authority
- CN
- China
- Prior art keywords
- steel loop
- pole piece
- piece steel
- aperture
- positive plate
- 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.)
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 68
- 239000010959 steel Substances 0.000 title claims abstract description 68
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 16
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910001416 lithium ion Inorganic materials 0.000 claims abstract description 5
- 239000012212 insulator Substances 0.000 claims abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 12
- 229910052799 carbon Inorganic materials 0.000 abstract description 12
- 239000003792 electrolyte Substances 0.000 abstract description 10
- 230000008595 infiltration Effects 0.000 abstract description 5
- 238000001764 infiltration Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- 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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- Primary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The utility model relates to a kind of lithium coin cells of big hybrid pole piece steel loop of aperture, including negative cover, anode cover, insulator seal ring is equipped between closing up in negative cover outer rim and anode cover, lithium-ion negative pole piece is from top to bottom successively arranged in anode cover, battery diaphragm and positive plate, pole piece steel loop is equipped between positive plate and anode cover, positive plate is linked together with pole piece steel loop, pole piece steel loop and anode cover form electronic conduction, the bottom surface of pole piece steel loop is equipped with macropore and aperture, overcome the problems, such as that the carbon dust infiltration electrolyte area of pole piece steel loop and positive plate reduces, the area for increasing pole piece steel loop Electolyte-absorptive makes electrolyte can sufficiently Electolyte-absorptive within the production technology time；The contact surface and adhesive force for increasing pole piece steel loop and positive plate, to improve the stability of the performance of button cell.
Description
Technical field
The utility model relates to a kind of button cell, especially a kind of lithium coin cells of the hybrid steel loop of big aperture.
Background technique
Lithium coin cells refer to outer dimension as the lithium ion battery of a small button, the button for column battery
Cell diameter is larger, thinner thickness, if thickness is only 1.6mm, 2.5mm, 3.2mm etc..Existing lithium coin cells are all made of one
The pairing structure of the relatively thin cathode lithium piece of block and one piece thicker of carbon-based positive plate, but the button lithium electricity thicker for some thickness
For pond, such as with a thickness of 3~7.7mm or more than lithium coin cells will lead to anode since the carbon-based positive plate of configuration is blocked up
Piece internal resistance is excessively high and electric molecule is difficult to generate activity to discharge, and affect the utilization rate of battery, battery is caused to lose in advance
Effect has had the pole piece steel loop connecting with positive plate to reduce the internal resistance of cell at present.There are two types of current pole piece steel loops: one
It is the macropore that pole piece steel loop only has middle part；Second is that pole piece steel loop bottom surface is all aperture.Pole piece steel loop bottom plate only has middle part macropore, holds
The carbon dust infiltration electrolyte area for easily leading to pole piece steel loop and positive plate reduces, and there are electrolyte infiltrations for pole piece steel loop other parts
Dead angle, cause the reduction of the infiltration of electrolyte infiltration capacity within the time of production technology, influence the stabilization of battery performance；Pole piece
Steel loop bottom plate is all aperture, and pole piece steel loop causes the increase of process time since hole, and production efficiency is low.Therefore one kind is studied
The lithium coin cells of the hybrid steel loop of big aperture are very necessary.
Summary of the invention
Technical problem to be solved by the utility model is: the carbon dust of pole piece steel loop and positive plate is overcome to permeate electrolyte area
The problem of reduction, the area for increasing pole piece steel loop Electolyte-absorptive make electrolyte that can sufficiently absorb electricity within the production technology time
Solve liquid；The contact surface and adhesive force for increasing pole piece steel loop and positive plate, to improve the stability of the performance of button cell.
In order to achieve the above objectives, the utility model adopts the following technical solution:
A kind of lithium coin cells of the hybrid steel loop of big aperture, including negative cover, anode cover, negative cover outer rim and anode cover
It is equipped with insulator seal ring between upper closing in, is from top to bottom successively arranged lithium-ion negative pole piece, battery diaphragm and anode in anode cover
Piece is equipped with pole piece steel loop between positive plate and anode cover, positive plate is linked together with pole piece steel loop, pole piece steel loop and positive hull shape
At electronic conduction, the bottom surface of the pole piece steel loop is equipped with macropore and aperture；The macropore is located at the middle part of pole piece steel loop,
The area of macropore accounts for the bottom surface 1/5th of pole piece steel loop between half；The aperture is evenly arranged on the bottom around macropore
On face, the area of each aperture is accounted between 1st/10th to ten of pole piece steel loop.
The macropore is the one of which of circular hole, delthyrium, square hole or other polygonal holes.
The aperture is the one of which of circular hole, delthyrium, square hole or other polygonal holes.
The macropore and aperture edge be equipped with burr, burr towards pole piece steel loop inside and be linked as one with positive plate
Body.
The utility model has the beneficial effects that the bottom surface due to pole piece steel loop is equipped with macropore and aperture, electrolysis had both been increased
The area that liquid absorbs, and pole piece steel loop can be allowed to increase with the carbon cake contact surface of positive plate, it ensure that electrolyte in process
Absorption that can be enough；The combination of pole piece steel loop macropore and aperture is significantly reduced than the quantity in complete small hole machined hole, is improved and is added
Work efficiency rate；Macropore and aperture edge are equipped with burr, so that burr is deep into the inside of positive plate carbon cake, due to positive plate carbon cake and pole
Piece steel loop punch forming, burr are inserted into inside positive plate, are connect pole piece steel loop with positive plate carbon cake even closer secured, are reduced
Internal resistance, improves the stability of battery.
Detailed description of the invention
Fig. 1 is the schematic three dimensional views of the one of embodiment external structure of the utility model.
Fig. 2 is the front schematic view of Fig. 1.
Fig. 3 be Fig. 2 A-A to schematic cross-sectional view.
Fig. 4 is the schematic three dimensional views that visual angle is overlooked on front side of the one of embodiment pole piece steel loop of the utility model.
Fig. 5 is the schematic diagram of the pole piece steel loop of another embodiment of the utility model.
Specific embodiment
As shown in Figures 1 to 5, the utility model includes: on negative cover 1, anode cover 2,1 outer rim of negative cover and anode cover 2
It is equipped with insulator seal ring 3 between closing in, lithium-ion negative pole piece 7, battery diaphragm 6, anode are from top to bottom successively arranged in anode cover 2
Piece 5 is equipped with pole piece steel loop 4 between positive plate and anode cover, positive plate is linked together with pole piece steel loop, pole piece steel loop and anode cover
Form electronic conduction.
The utility model is mainly characterized by: the bottom surface 41 of pole piece steel loop 4 is equipped with macropore 412 and aperture 411, i.e.,
The hybrid pole piece steel loop of big aperture.Macropore is located at the middle part of pole piece steel loop, the area of macropore account for the bottom surface five of pole piece steel loop/
One between half；Aperture is evenly arranged on the bottom surface around macropore, 30 points in pole piece steel loop of the area of each aperture
One of between 1/10th.The hole shape of macropore and aperture is unlimited, for its of circular hole, delthyrium, square hole or other polygonal holes
Middle one kind.Since the bottom surface of pole piece steel loop is equipped with macropore and aperture, the area of electrolyte absorption was not only increased, but also can allow pole piece
Steel loop increases with the carbon cake contact surface of positive plate, ensure that electrolyte enough can be absorbed in the short time in process；Pole
Piece steel loop process boring ratio entirely small hole machined hole quantity reduce, improve processing efficiency.
Another technical characteristic of the utility model is that macropore 412 and 411 edge of aperture are equipped with burr, and burr is towards pole piece steel
The inside of ring is simultaneously linked together with positive plate.Since burr very little is not shown in figure, which can be punching natural shape
At can also be punching setting burr, burr is directed on the side wall in pole piece steel loop hole to the multiple shapes protruded on the inside of pole piece steel loop
Shape rule or irregular wedge angle, inside refers to the top of pole piece steel loop as shown in Figure 4.Burr is deep into positive plate carbon cake
Portion connect pole piece steel loop with positive plate carbon cake even closer secured, reduces internal resistance, improve the stability of battery.
The utility model is applicable not only to lithium coin cells, is also applied for the button cell of various other specifications.
Claims (4)
1. a kind of lithium coin cells of the hybrid steel loop of big aperture, including negative cover (1), anode cover (2), negative cover (1) outer rim
With close up on anode cover (2) between be equipped with insulator seal ring (3), is from top to bottom successively arranged lithium-ion negative pole in anode cover (2)
Piece (7), battery diaphragm (6) and positive plate are equipped with pole piece steel loop (4) between positive plate and anode cover, positive plate and pole piece steel loop
It is linked together, pole piece steel loop and anode cover form electronic conduction, it is characterised in that: set on the bottom surface of the pole piece steel loop (4)
There are macropore and aperture；The macropore is located at the middle part of pole piece steel loop, and the area of macropore accounts for the bottom surface 1/5th of pole piece steel loop
To between half；The aperture is evenly arranged on the bottom surface around macropore, and the area of each aperture accounts for the three of pole piece steel loop
Between 1/10th to ten/10th.
2. a kind of lithium coin cells of big hybrid steel loop of aperture according to claim 1, it is characterised in that: described is big
Hole (412) is the one of which of circular hole, delthyrium, square hole or other polygonal holes.
3. a kind of lithium coin cells of big hybrid steel loop of aperture according to claim 1, it is characterised in that: described is small
Hole (411) is the one of which of circular hole, delthyrium, square hole or other polygonal holes.
4. a kind of lithium coin cells of big hybrid steel loop of aperture according to claim 1, it is characterised in that: described is big
Hole (412) and aperture (411) edge are equipped with burr, burr towards pole piece steel loop inside and be linked together with positive plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821531380.1U CN208873830U (en) | 2018-09-18 | 2018-09-18 | A kind of lithium coin cells of the hybrid pole piece steel loop of big aperture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821531380.1U CN208873830U (en) | 2018-09-18 | 2018-09-18 | A kind of lithium coin cells of the hybrid pole piece steel loop of big aperture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208873830U true CN208873830U (en) | 2019-05-17 |
Family
ID=66468136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821531380.1U Active CN208873830U (en) | 2018-09-18 | 2018-09-18 | A kind of lithium coin cells of the hybrid pole piece steel loop of big aperture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208873830U (en) |
-
2018
- 2018-09-18 CN CN201821531380.1U patent/CN208873830U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200903 Address after: Room 105, building 1, 194 Hengli Xincheng Road, Hengli Town, Dongguan City, Guangdong Province 523460 Patentee after: Dongguan Jinbang Technology Co., Ltd Address before: Room 701, block 2, Fulai garden, No.29, Xiliu lane, shuiyinzhi street, Yuexiu District, Guangzhou City, Guangdong Province Co-patentee before: Zhang Yaokun Patentee before: Zhu Chengxian |