CN105226209B - The ultra-thin power combination block of lithium battery - Google Patents
The ultra-thin power combination block of lithium battery Download PDFInfo
- Publication number
- CN105226209B CN105226209B CN201510685752.0A CN201510685752A CN105226209B CN 105226209 B CN105226209 B CN 105226209B CN 201510685752 A CN201510685752 A CN 201510685752A CN 105226209 B CN105226209 B CN 105226209B
- Authority
- CN
- China
- Prior art keywords
- connection sheet
- burst disk
- lithium battery
- ultra
- top cover
- 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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Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 210000003205 muscle Anatomy 0.000 claims description 14
- 241001270131 Agaricus moelleri Species 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000035939 shock Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 238000005273 aeration Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
- H01M50/152—Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
-
- 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
- H01M10/052—Li-accumulators
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The present invention relates to lithium battery pack technical field, more particularly to a kind of ultra-thin power combination block of lithium battery, including top cover, burst disk, cage ring, connection sheet and sealing ring, burst disk is set below top cover, connection sheet is provided with below burst disk, burst disk edge is provided with the bound edge inwardly rolled, bound edge wraps the edge of top cover, burst disk is fixedly connected with the middle part of connection sheet, installed between the edge and burst disk of connection sheet and be set with sealing ring outside cage ring, top cover, burst disk, cage ring and connection sheet.The ultra-thin power combination block of lithium battery of the present invention, cap-height can be reduced to below 3mm, the height in inside battery space is added, lithium battery coiling core height can increase 1mm or so, effectively improve battery energy density, the present invention is by changing cage ring, burst disk and the structure of connection sheet, so as to reach the purpose of block whole height reduction, block ultrathin is realized, and shock resistance is strong, using reliable, it is easy to high-volume automated production.
Description
Technical field
The present invention relates to lithium battery pack technical field, more particularly to a kind of ultra-thin power combination block of lithium battery.
Background technology
The appearance of battery provides important power supply guarantee for the life, amusement and work of our mankind.With society
Development and the progress of human civilization, one-shot battery due to the pollution to environment, capacity is low, use time is short the shortcomings of gradually will be by
Eliminate, the substitute is pollution-free, capacity greatly, the secondary cell for the advantages of service life is long, wherein cylinder type lithium battery are special
Some self structure and performance are widely applied to every field, as notebook computer, portable power source, electric tool, electronic
Automobile etc. is exactly therein represents.
Security combination block is the most important safety guarantee part of lithium battery, the structure and production technology of itself directly or
Affect indirectly the performance of lithium battery and the manufacturing cost of battery producer.Existing combination cover cap is as shown in figure 9, including outer
Sealing ring, connection sheet, cage ring, burst disk, inner ring and the top cover in portion, the height h1 of top cover to connection sheet bottom are left for 3.5mm
The right side is cap-height, and the thicker capacity with regard to battery of the thickness is just smaller, therefore technical staff employs kinds of schemes and wants to reduce it
Thickness, such as reduce the height of top cover, two kinds of problems so easily occurs, and one is that top cover is less than battery edge of table, so understands shadow
Ring the normal of battery to use, two be to influence the opening of battery internal safety valve, or even is not opened；It is that burst disk is done short for another example,
But it is due to that burst disk is too low, safe distance can be caused not enough, causes burst disk to occur after severance like disconnected non-disconnected with connection sheet
Situation, cause battery runs down not thorough.
The content of the invention
The technical problem to be solved in the present invention is：Battery appearance is improved in order to solve how to reduce in the prior art combination cover cap
The technical problem of amount, the present invention provides a kind of ultra-thin power combination block of lithium battery.By changing cage ring, burst disk and connection
The structure of piece keeps block steady under complex environment to reduce the whole height of block, and while increasing the capacity of battery
It is qualitative.
The technical solution adopted for the present invention to solve the technical problems is：A kind of ultra-thin power combination block of lithium battery, bag
Include and set below top cover, burst disk, cage ring, connection sheet and sealing ring, the top cover below the burst disk, the burst disk
Connection sheet is provided with, the burst disk edge is provided with the bound edge inwardly rolled, and the bound edge wraps the edge of top cover, institute
Burst disk is stated to be fixedly connected with the middle part of connection sheet, installed between the edge of the connection sheet and the burst disk it is described every
From circle, the sealing ring is set with outside the top cover, burst disk, cage ring and connection sheet.The ultra-thin power packages of lithium battery of the present invention
Combination block, cap-height is reduced to 3mm or so by original 3.5mm, and inside battery space substantially increases, and is not changing outside battery
In the case of portion's size, battery capacity is improved.
The height of minimum point of the peak of the top cover upper surface to connection sheet is h2, h2≤3.0mm.
In order to increase conductive stability, the middle part of the top cover is provided with to the raised boss of outside batteries, described convex
Some bleeder ports are offered at edge of table.
In order to discharge the gas of output inside battery, the middle part of the burst disk is provided with what is protruded to outside batteries
Projection, the raised top center is recessed to form concave surface to inside battery, and the boss is sleeved on outside projection.
In order to reduce the height of block, battery capacity is improved, the middle part of the cage ring is provided with convex to outside batteries
The hollow cylinder risen, cylindrical sleeve is outside hollow cylinder, and the section of hollow cylinder is L-shaped, and the section of hollow cylinder is with isolating
Section composition outside circle is step-like.
In order to which the structure with cage ring is engaged, and with aeration, the connection sheet middle part is provided with to outside battery
The outer ring for being located at flat-top cylinder in the raised flat-top cylinder in portion, the connection sheet offers some passages, flat-top cylinder with it is recessed
Face is fixedly connected.
For the ease of functional localization, production and assembly and antidetonation, the outward flange of each passage is described on same circle
Also there is upward flange on circle and flat-top cylindrical-concentric, the outward flange of the passage, the flange is described on the circle
Hollow cylinder is sleeved on outside the flange.
In order to increase the sealing effectiveness of sealing ring, the top of the sealing ring is in the middle of open column shape, the bottom of sealing ring
Position is provided with downwardly convex inversion hollow cone, is connected between hollow cone and the top of sealing ring by platform, described close
The upper inside wall of seal is provided with triangle card muscle, and the platform upper surface is provided with trapezoidal sealed muscle, and the bound edge of burst disk is located at
Between triangle card muscle and trapezoidal sealed muscle, the cage ring and connection sheet are located in hollow cone, and connection sheet and open circles
Cone bottom has spacing.
The beneficial effects of the invention are as follows the ultra-thin power combination block of lithium battery of the invention, cap-height can be reduced to
Below 3mm, adds the height in inside battery space, after this block, and lithium battery coiling core height can increase 1mm or so,
Battery energy density is effectively improved, i.e., in the case where not changing outside batteries size, battery capacity can increase by 1.5%, this
Invention is main by changing cage ring, burst disk and the structure of connection sheet, and the cage ring that tradition is turned over downwards makes into turn over upwards
Folding, so as to reach the purpose that block whole height reduces, realizes block ultrathin, and shock resistance is strong, using reliable, is easy to big
Batch automatic production.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of the ultra-thin power combination block of lithium battery of the present invention.
Fig. 2 is the structural representation of the top cover of the ultra-thin power combination block of lithium battery of the present invention.
Fig. 3 is Fig. 2 top view.
Fig. 4 is the structural representation of the burst disk of the ultra-thin power combination block of lithium battery of the present invention.
Fig. 5 is the structural representation of the spacer of the ultra-thin power combination block of lithium battery of the present invention.
Fig. 6 is the structural representation of the connection sheet of the ultra-thin power combination block of lithium battery of the present invention.
Fig. 7 is Fig. 6 top view.
Fig. 8 is the structural representation of the sealing ring of the ultra-thin power combination block of lithium battery of the present invention.
Fig. 9 is combination cover cap structural representation of the prior art.
In figure：2nd, top cover, 2-1, boss, 2-2, bleeder port, 3, burst disk, 3-1, bound edge, 3-2, projection, 3-3, concave surface,
4th, cage ring, 4-1, hollow cylinder, 5, connection sheet, 5-1, flat-top cylinder, 5-2, passage, 5-3, flange, 6, sealing ring, 6-1,
Hollow cone, 6-2, platform, 6-3, triangle card muscle, 6-4, trapezoidal sealed muscle, 6-5, spacing.
Embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These accompanying drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows the composition relevant with the present invention.
As shown in figures 1-8, it is the ultra-thin power combination block of lithium battery of the invention, including top cover 2, burst disk 3, cage ring
4th, connection sheet 5 and sealing ring 6, the lower section of top cover 2 set burst disk 3, and the lower section of burst disk 3 is provided with connection sheet 5, the edge of burst disk 3
Place is provided with the bound edge 3-1 inwardly rolled, and bound edge 3-1 wraps the edge of top cover 2, the middle part of burst disk 3 and connection sheet 5
It is fixedly connected, cage ring 5, top cover 2, burst disk 3, cage ring 5 and connection sheet 5 is installed between the edge and burst disk 3 of connection sheet 5
Outer suit sealing ring 6.Total height h2 is 2.96mm after top cover 2, burst disk 3, cage ring 4 and connection sheet 5 four are assembled.
As shown in Figure 2,3, the middle part of top cover 2 is provided with to the raised boss 2-1 of outside batteries, boss 2-1 edge
Place offers some bleeder port 2-2.Outside batteries are the top in Fig. 1-8.
As shown in figure 4, the middle part of burst disk 3 is provided with to the convex of outside batteries (outside batteries are positive pole top cover) protrusion
3-2 is played, raised 3-2 top center is recessed to form concave surface 3-3 to inside battery, and boss 2-1 is sleeved on outside raised 3-2.
As shown in figure 5, the middle part of cage ring 4 is provided with to the raised hollow cylinder 4-1 of outside batteries, cylinder 3-2 sets
Outside hollow cylinder 4-1, hollow cylinder 4-1 section is L-shaped, hollow cylinder 4-1 section and cuing open outside cage ring 4
Face composition is step-like.
As shown in Figure 6,7, the middle part of connection sheet 5 is provided with the flat-top cylinder 5-1 to outside batteries projection, connection sheet 5
Some passage 5-2 are offered, passage 5-2 can be waist-shaped hole, fan-shaped or other shapes, flat-top cylinder 5-1 and concave surface 3-3
It is fixedly connected.Each passage 5-2 outward flange is on same circle, circle, passage 5-2 outside concentric with flat-top cylinder 5-1
Also there is upward flange 5-3, flange 5-3 is on the circle, and hollow cylinder 4-1 is sleeved on outside flange 5-3 on edge.
As shown in figure 8, the top of sealing ring 6 is in open column shape, the lower middle portion of sealing ring 6 is provided with downwardly convex
Hollow cone 6-1 is inverted, is connected between hollow cone 6-1 and the top of sealing ring 6 by platform 6-2, in the top of sealing ring 6
Upper surface of the wall provided with triangle card muscle 6-3, platform 6-2 is provided with trapezoidal sealed muscle 6-4, and the bound edge 3-1 of burst disk 3 is located at three
Between angular card muscle 6-3 and trapezoidal sealed muscle 6-4, cage ring 4 and connection sheet 5 are located in hollow cone 6-1, and connection sheet 5 with
Hollow cone 6-1 bottoms have spacing 6-5.
Using the above-mentioned desirable embodiment according to the present invention as enlightenment, by above-mentioned description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property scope is not limited to the content on specification, it is necessary to its technical scope is determined according to right.
Claims (6)
1. a kind of ultra-thin power combination block of lithium battery, it is characterised in that：Including top cover（2）, burst disk（3）, cage ring（4）、
Connection sheet（5）And sealing ring（6）, the top cover（2）Lower section sets the burst disk（3）, the burst disk（3）Lower section is provided with
Connection sheet（5）, the burst disk（3）Edge is provided with the bound edge inwardly rolled（3-1）, the bound edge（3-1）Wrap top
Lid（2）Edge, the burst disk（3）With connection sheet（5）Middle part be fixedly connected, the connection sheet（5）Edge with
The burst disk（3）Between the cage ring is installed（4）, the top cover（2）, burst disk（3）, cage ring（4）And connection sheet（5）
The outer suit sealing ring（6）,
The top cover（2）Middle part be provided with to the raised boss of outside batteries（2-1）, the boss（2-1）Edge
Offer some bleeder ports（2-2）,
The burst disk（3）Middle part be provided with the projection protruded to outside batteries（3-2）, the projection（3-2）Top
Center is recessed to form concave surface to inside battery（3-3）, the boss（2-1）It is sleeved on projection（3-2）It is outside.
2. the ultra-thin power combination block of lithium battery as claimed in claim 1, it is characterised in that：The top cover（2）Upper surface
Peak is to connection sheet（5）Minimum point height be h2, h2≤3.0mm.
3. the ultra-thin power combination block of lithium battery as claimed in claim 1, it is characterised in that：The cage ring（4）Centre
Position is provided with to the raised hollow cylinder of outside batteries（4-1）, it is raised（3-2）It is sleeved on hollow cylinder（4-1）Outside, open circles
Post（4-1）Section it is L-shaped, hollow cylinder（4-1）Section and cage ring（4）Outside section composition is step-like.
4. the ultra-thin power combination block of lithium battery as claimed in claim 3, it is characterised in that：The connection sheet（5）Pars intermedia
Position is provided with to the raised flat-top cylinder of outside batteries（5-1）, the connection sheet（5）It is upper to be located at flat-top cylinder（5-1）Outer ring open
Provided with some passages（5-2）, flat-top cylinder（5-1）With concave surface（3-3）It is fixedly connected.
5. the ultra-thin power combination block of lithium battery as claimed in claim 4, it is characterised in that：The each passage of connection sheet（5-
2）Outward flange on same circle, described circle and flat-top cylinder（5-1）With one heart, the passage（5-2）Outward flange on also
With upward flange（5-3）, the flange（5-3）On the circle, the hollow cylinder（4-1）It is sleeved on the flange
（5-3）It is outside.
6. the ultra-thin power combination block of lithium battery as claimed in claim 5, it is characterised in that：The sealing ring（6）Top
In open column shape, sealing ring（6）Lower middle portion be provided with downwardly convex inversion hollow cone（6-1）, hollow cone（6-
1）With sealing ring（6）Top between pass through platform（6-2）Connection, the sealing ring（6）Upper inside wall be provided with triangle
Card muscle（6-3）, the platform（6-2）Upper surface be provided with trapezoidal sealed muscle（6-4）, burst disk（3）Bound edge（3-1）Positioned at three
Angular card muscle（6-3）With trapezoidal sealed muscle（6-4）Between, the cage ring（4）And connection sheet（5）Positioned at hollow cone（6-1）
It is interior, and connection sheet（5）With hollow cone（6-1）Bottom has spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510685752.0A CN105226209B (en) | 2015-10-20 | 2015-10-20 | The ultra-thin power combination block of lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510685752.0A CN105226209B (en) | 2015-10-20 | 2015-10-20 | The ultra-thin power combination block of lithium battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105226209A CN105226209A (en) | 2016-01-06 |
| CN105226209B true CN105226209B (en) | 2017-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510685752.0A Active CN105226209B (en) | 2015-10-20 | 2015-10-20 | The ultra-thin power combination block of lithium battery |
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| CN (1) | CN105226209B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106299171A (en) * | 2016-09-05 | 2017-01-04 | 东莞市奕东电子有限公司 | A kind of power type lithium electricity capping structure |
| CN107293678A (en) * | 2017-08-10 | 2017-10-24 | 深圳市创益通技术股份有限公司 | A kind of electrokinetic cell |
| CN108448014A (en) * | 2018-03-07 | 2018-08-24 | 江苏镭腾能源科技有限公司 | A lithium battery cap assembly |
| CN109461850B (en) * | 2018-09-14 | 2021-08-20 | 江苏海四达电源股份有限公司 | Lithium ion battery cap and lithium ion battery |
| CN111162204A (en) * | 2020-02-10 | 2020-05-15 | 深圳市合壹新能技术有限公司 | Button cell, sealing structure of cell and preassembling unit |
| CN115172955B (en) * | 2022-07-25 | 2024-08-23 | 苏州橙柳电子精密有限公司 | Super-large capacity lithium battery cap |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6207320B1 (en) * | 1998-07-28 | 2001-03-27 | Samsung Display Devices, Co., Ltd. | Cap assembly of secondary battery |
| CN201528001U (en) * | 2009-09-25 | 2010-07-14 | 天津佰特瑞电子有限公司 | Glue free enclosure-type lithium ion power battery cap |
| CN202004107U (en) * | 2011-03-14 | 2011-10-05 | 东莞新能源科技有限公司 | Lithium ion battery |
| CN204497282U (en) * | 2015-04-09 | 2015-07-22 | 常州市武进中瑞电子有限公司 | Slim cylindrical lithium battery anti-explosion |
| CN204991784U (en) * | 2015-10-20 | 2016-01-20 | 常州市武进中瑞电子有限公司 | Ultra -thin power package of lithium cell closes block |
-
2015
- 2015-10-20 CN CN201510685752.0A patent/CN105226209B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6207320B1 (en) * | 1998-07-28 | 2001-03-27 | Samsung Display Devices, Co., Ltd. | Cap assembly of secondary battery |
| CN201528001U (en) * | 2009-09-25 | 2010-07-14 | 天津佰特瑞电子有限公司 | Glue free enclosure-type lithium ion power battery cap |
| CN202004107U (en) * | 2011-03-14 | 2011-10-05 | 东莞新能源科技有限公司 | Lithium ion battery |
| CN204497282U (en) * | 2015-04-09 | 2015-07-22 | 常州市武进中瑞电子有限公司 | Slim cylindrical lithium battery anti-explosion |
| CN204991784U (en) * | 2015-10-20 | 2016-01-20 | 常州市武进中瑞电子有限公司 | Ultra -thin power package of lithium cell closes block |
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| Publication number | Publication date |
|---|---|
| CN105226209A (en) | 2016-01-06 |
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Address after: 213000 11 and 11-1 Jinghu Road, Wujin national hi tech Industrial Development Zone, Changzhou, Jiangsu, China Patentee after: Changzhou Wujin Zhong Rui electronic Polytron Technologies Inc Address before: 213161 801 people's road, Wujin District, Changzhou, Jiangsu Patentee before: Changzhou Wujin Zhongrui Electronics Co.,Ltd. |