CN102244211A - Cell cover cap combination and cylindrical secondary cell - Google Patents
Cell cover cap combination and cylindrical secondary cell Download PDFInfo
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- CN102244211A CN102244211A CN2010101799649A CN201010179964A CN102244211A CN 102244211 A CN102244211 A CN 102244211A CN 2010101799649 A CN2010101799649 A CN 2010101799649A CN 201010179964 A CN201010179964 A CN 201010179964A CN 102244211 A CN102244211 A CN 102244211A
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- substrate
- protective device
- boss
- client
- electrode leads
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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
The invention relates to a cell cover cap combination. The combination comprises a seal cover, a substrate, a pressure protection device, and an electrode lead-out end. The seal cover comprises a first convex platform for supporting the pressure protection device and the electrode lead-out end. One end of the substrate is connected with the pressure protection device and the other end of the substrate is connected with an electrode lug of a positive and negative electrode winding. The pressure protection device is conducted with the electrode lead-out end. A second convex platform for supporting the substrate is arranged below the first convex platform of the seal cover. The invention also relates to a related cylindrical cell. In the invention, a seal cover of the cell cover cap combination is provided with a first convex platform for supporting a pressure protection device and an electrode lead-out end, and a second convex platform which is utilized for supporting a substrate and is arranged below the first convex platform, thus an influence of an extrusion-type sealing process on a substrate is restricted thereby avoiding the problem that an electrode lug falls off to cause a zero potential, wherein the sealing process is carried out on the first convex platform.
Description
Technical field
The present invention relates to lithium ion battery, be specifically related to a kind of battery cap combination and column secondary battery of coming off and cause both positive and negative polarity winding zero potential problem because of lug avoided.
Background technology
Lithium rechargeable battery has become the indispensable secondary power supply of portable electric appts such as digital camera, video camera because of its high-energy-density and portable performance.Column secondary battery is than standard and battery product commonly used.
Please refer to Fig. 1, be depicted as the capping structure of existing column secondary battery.Existing column secondary battery generally comprises the battery cap combination of battery container, both positive and negative polarity winding and sealing both positive and negative polarity winding.The both positive and negative polarity winding is generally packed into earlier not by in the battery container of roll-in mounting groove, places insulating trip 132 again in both positive and negative polarity winding top, and the lug 136 of both positive and negative polarity winding need weld with the substrate 140 of block combination.In housing, inject electrolyte then, and at the mounting groove 112 of this battery container top roll compression set position insulating trip, the combination of will blocking a shot again afterwards is placed on mounting groove 112 tops, adopts block a shot combination and battery container of the method that laminates to combine.This block is combined in and is laminated with pressure protect sheet 150, temperature protection sheet 164 and electrode leads to client 160 on the substrate.Wherein, pressure protect sheet 150, temperature protection sheet 164 and electrode leads to client 160 are supported on the boss 172 of insulating case 170; this pressure protect sheet 150 gos deep into towards the both positive and negative polarity winding from the centre bore of insulating case 170, and welds with the substrate 140 that is arranged in insulating case 170 base rings 174.When laminating battery container and block combination; be placed on pressure protect sheet 150, temperature protection sheet 164 and electrode leads to client 160 3 parts on insulating case 170 boss 172 and be subjected to the extruding of lower case and upper body simultaneously; the substrate 140 times that can affect pressure protect sheet 150 times suspention is movement therewith also; feasible lug with substrate 140 welding ruptures because of pulling most probably, has increased the both positive and negative polarity winding zero potential problem in the secondary cell manufacture process.
Summary of the invention
The purpose of this invention is to provide a kind of effectively avoiding because of lug come off the battery cap combination and the relevant column secondary battery of the zero potential problem that causes.
The technical scheme that realizes described purpose is: a kind of battery cap combination; comprise sealing shroud, substrate, pressure protective device and electrode leads to client; the sealing cover comprises first boss that is used for abutment pressure protective device and electrode leads to client; this substrate one end connects the pressure protective device other end and is connected this pressure protective device and electrode leads to client conducting with both positive and negative polarity winding lug.Sealing is enclosed within second boss that first boss below is provided for supporting substrate.
Thereby when assembled battery,, further firm substrate avoids lug to come off zero potential occurring for not rocking it; make substrate and being connected of lug not take place to rupture; be equipped with between this substrate and the pressure protective device and be used to cushion the elastomeric isolation circle that seals pressure, this cage ring cooperates from the displacement of upper-lower position restricting substrate with second boss.
In order to guarantee the good insulation between the both positive and negative polarity exit, sealing is enclosed within seals top and is extruded with flange with shell and electrode leads to client insulation.
Preferably, this first boss is provided with the bulge loop that is used for radial seal electrolyte.
Preferably, connect by a thermistor ring conducting between this pressure protective device and the electrode leads to client.
The invention still further relates to a kind of column secondary battery; comprise shell, installing in the enclosure the both positive and negative polarity winding and in conjunction with the combination of the block of body seal both positive and negative polarity winding; this block combination comprises sealing shroud, substrate, pressure protective device and electrode leads to client; the sealing cover comprises first boss that is used for abutment pressure protective device and electrode leads to client; this substrate one end connects the pressure protective device other end and is connected this pressure protective device and electrode leads to client conducting with both positive and negative polarity winding lug.Sealing is enclosed within second boss that first boss below is provided for supporting substrate.
The present invention's beneficial effect compared with prior art is:
Battery cap combination of the present invention and column secondary battery; second boss that the sealing shroud setting is used for first boss of support pressure protective device, thermistor ring and electrode leads to client and is provided for supporting substrate below first boss; make the extruding sealing operation on first boss be restricted, thereby effectively avoid the zero potential problem that comes off and cause because of lug affecting of substrate.
Further, by the technical scheme of each embodiment, bring following beneficial effect:
Block combination of the present invention and column secondary battery; be equipped with between substrate and the pressure protective device and be used to cushion the elastomeric isolation circle that seals pressure; this cage ring cooperates from the displacement of upper-lower position restricting substrate with second boss; to guarantee that substrate did not take place to rupture with being connected of lug, further firm substrate avoids occurring zero potential.
Battery cap of the present invention combination and column secondary battery seal top and are extruded with the good insulation between the flange assurance both positive and negative polarity exit of shell and electrode leads to client insulation thereby sealing is enclosed within.
Description of drawings
Below by embodiment also in conjunction with the accompanying drawings, the present invention is described in further detail:
Fig. 1 is the structural representation of existing battery cap combination;
Fig. 2 is the package assembly schematic diagram of present embodiment housing and both positive and negative polarity winding;
Fig. 3 is the structural representation of present embodiment installation and processing groove;
Fig. 4 is the structural representation of present embodiment battery cap combination;
Fig. 5 is the structural representation of present embodiment column secondary battery;
Fig. 6 is the structural representation after the present embodiment battery cap combination extruding.
Embodiment
See also Fig. 2 to Fig. 5, present embodiment relates to a kind of column secondary battery, comprises shell 10, both positive and negative polarity winding 30 and block combination.This block combination comprises sealing shroud 70, substrate 40, pressure protective device 50 and electrode leads to client 60.Sealing cover 70 is provided with second boss 72 that is used for first boss 75 of support pressure protective device 50 and electrode leads to client 60 and is provided for supporting substrate 40 below first boss 75 in the present embodiment; pad is established elastomeric isolation circle 71 between pressure protective device 50 and substrate 40 simultaneously; upper-lower position restriction by the elastomeric isolation circle 71 and second boss 72; make the battery extruding sealing operation on first boss be restricted, thereby effectively avoid the battery zero potential problem that comes off and cause because of lug 36 affecting of substrate 40.
Below specifically introduce the structure of this column secondary battery.
Fig. 2 to 3 is depicted as the assembling process schematic diagram of battery.During the battery assembling, insulating trip 34 under placing in both positive and negative polarity winding 30 bottoms earlier makes negative electrode lug 38 be positioned at the below of insulating trip 34 down, so that negative electrode lug contacts as the negative pole exit with battery container 10.Then both positive and negative polarity winding 30 is put into housing 10, and, anode ear 36 is passed from last insulating trip 32 placing insulating trip 32 above the both positive and negative polarity winding 30.Insulating trip 32 position roll-in mounting grooves 12 on housing then, this mounting groove 12 also are convenient to the combination of assembling block on the other hand with the both positive and negative polarity winding 30 of battery bottom is fixing on the one hand.
Also be provided with a thermistor ring 64 between this pressure protective device 50 and the electrode leads to client 60; this thermistor ring 64 conductings connect pressure protective device 50 and electrode leads to client 60, and blocking circuit guarantees the safety in utilization of battery when the inside battery temperature rise is big.
Please also refer to Fig. 4 to Fig. 6, sealing cover 70 comprises clamping part 76, extends in the flange 77 that shell 10 and electrode leads to client 60 are insulated on clamping part 76 tops and first boss 75 that is used for abutment pressure protective device 50, thermistor ring 64 and electrode leads to client 60.Sealing cover 70 is provided for second boss 72 of supporting substrate 40 below first boss 75.These substrate 40 1 ends connect pressure protective device 50 other ends and are connected with the anode ear 36 of both positive and negative polarity winding 60.Second boss 72 and elastomeric isolation circle 71 cooperate in the present embodiment, from upper-lower position restricting substrate 40 with block combination laminate and the upper and lower displacement that produces, make the battery extruding sealing operation on first boss 72 be restricted, with the battery zero potential problem of effectively avoiding coming off and causing because of lug 36 to affecting of substrate 40.
This elastomeric isolation circle 71 is not necessarily as long as the degree of freedom of substrate 40 can guarantee not take place to come off or rupture with being connected of anode ear 36.But elastomeric isolation circle 71 limit effect have been arranged more, can avoid occurring zero potential by further firm substrate, made substrate and being connected of lug not take place to rupture.
In the present embodiment, electrode leads to client 60 is as anodal exit, and the negative lug 38 of bottom connects housing 10, so housing 10 needs as the negative pole exit and electrode leads to client 60 insulation.In order to guarantee the good insulation between the both positive and negative polarity exit, sealing cover 70 is extruded with the flange 77 that shell and electrode leads to client 60 are insulated sealing top.
In order better both positive and negative polarity winding 30 in the housing and electrolyte to be sealed, this first boss 75 is provided with the bulge loop 78 that is used for radial seal simultaneously.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. battery cap combination; comprise sealing shroud, substrate, pressure protective device and electrode leads to client; described sealing shroud comprises first boss that is used for abutment pressure protective device and electrode leads to client; described substrate one end connects the pressure protective device other end and is connected with both positive and negative polarity winding lug; described pressure protective device and electrode leads to client conducting is characterized in that: described sealing shroud is provided for second boss of supporting substrate below first boss.
2. battery cap according to claim 1 combination is characterized in that: be equipped with between described substrate and the pressure protective device and be used to cushion the elastomeric isolation circle that seals pressure, described cage ring cooperates from the displacement of upper-lower position restricting substrate with second boss.
3. battery cap according to claim 2 combination is characterized in that: described sealing shroud is extruded with the flange that shell and electrode leads to client are insulated sealing top.
4. according to any described battery cap combination of claim 1-3, it is characterized in that: described first boss is provided with the bulge loop that is used for radial seal electrolyte.
5. battery cap combination according to claim 4 is characterized in that: connected by a thermistor ring conducting between described pressure protective device and the electrode leads to client.
6. column secondary battery; comprise shell; installing in the enclosure the both positive and negative polarity winding and in conjunction with the combination of the block of body seal both positive and negative polarity winding; described block combination comprises sealing shroud; substrate; pressure protective device and electrode leads to client; described sealing shroud comprises first boss that is used for abutment pressure protective device and electrode leads to client; described substrate one end connects the pressure protective device other end and is connected with both positive and negative polarity winding lug; described pressure protective device and electrode leads to client conducting is characterized in that: described sealing shroud is provided for second boss of supporting substrate below first boss.
7. column secondary battery according to claim 6 is characterized in that: be equipped with between described substrate and the pressure protective device and be used to cushion the elastomeric isolation circle that seals pressure, described cage ring cooperates from the displacement of upper-lower position restricting substrate with second boss.
8. column secondary battery according to claim 7 is characterized in that: described sealing shroud is extruded with flange with the insulation of shell and electrode leads to client sealing top.
9. according to any described column secondary battery of claim 6-8, it is characterized in that: described first boss is provided with the bulge loop that is used for radial seal electrolyte.
10. column secondary battery according to claim 9 is characterized in that: connected by a thermistor ring conducting between described pressure protective device and the electrode leads to client.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101799649A CN102244211A (en) | 2010-05-14 | 2010-05-14 | Cell cover cap combination and cylindrical secondary cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101799649A CN102244211A (en) | 2010-05-14 | 2010-05-14 | Cell cover cap combination and cylindrical secondary cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102244211A true CN102244211A (en) | 2011-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101799649A Pending CN102244211A (en) | 2010-05-14 | 2010-05-14 | Cell cover cap combination and cylindrical secondary cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102244211A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109216597A (en) * | 2018-09-07 | 2019-01-15 | 苏州安靠电源有限公司 | Cylindrical battery and its sealing ring |
| WO2023092757A1 (en) * | 2021-11-26 | 2023-06-01 | 宁德时代新能源科技股份有限公司 | Battery cell and manufacturing method and manufacturing equipment therefor, battery, and electrical device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201112445Y (en) * | 2007-08-07 | 2008-09-10 | 深圳市比克电池有限公司 | Columned secondary battery cover component and battery using the same |
| CN201233919Y (en) * | 2008-07-29 | 2009-05-06 | 天津佰特瑞电子有限公司 | Lithium ionic cell covering cap device |
| CN201383507Y (en) * | 2009-03-19 | 2010-01-13 | 东莞新能源科技有限公司 | Combined cap for battery |
| CN201435414Y (en) * | 2009-07-10 | 2010-03-31 | 杨学新 | Anti-explosion combined cover cap of cylindrical battery |
| CN201667353U (en) * | 2009-10-13 | 2010-12-08 | 东莞新能源科技有限公司 | Combined covering cap of battery |
-
2010
- 2010-05-14 CN CN2010101799649A patent/CN102244211A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201112445Y (en) * | 2007-08-07 | 2008-09-10 | 深圳市比克电池有限公司 | Columned secondary battery cover component and battery using the same |
| CN201233919Y (en) * | 2008-07-29 | 2009-05-06 | 天津佰特瑞电子有限公司 | Lithium ionic cell covering cap device |
| CN201383507Y (en) * | 2009-03-19 | 2010-01-13 | 东莞新能源科技有限公司 | Combined cap for battery |
| CN201435414Y (en) * | 2009-07-10 | 2010-03-31 | 杨学新 | Anti-explosion combined cover cap of cylindrical battery |
| CN201667353U (en) * | 2009-10-13 | 2010-12-08 | 东莞新能源科技有限公司 | Combined covering cap of battery |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109216597A (en) * | 2018-09-07 | 2019-01-15 | 苏州安靠电源有限公司 | Cylindrical battery and its sealing ring |
| WO2023092757A1 (en) * | 2021-11-26 | 2023-06-01 | 宁德时代新能源科技股份有限公司 | Battery cell and manufacturing method and manufacturing equipment therefor, battery, and electrical device |
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