CN102104138B - Battery positive cap and manufacturing method thereof - Google Patents
Battery positive cap and manufacturing method thereof Download PDFInfo
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- CN102104138B CN102104138B CN2011100213606A CN201110021360A CN102104138B CN 102104138 B CN102104138 B CN 102104138B CN 2011100213606 A CN2011100213606 A CN 2011100213606A CN 201110021360 A CN201110021360 A CN 201110021360A CN 102104138 B CN102104138 B CN 102104138B
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- cover
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- diameter
- insulating barrier
- plush copper
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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
Abstract
The invention provides a battery positive cap. The battery positive cap comprises a surface cover, a bottom cover, an anti-explosion ball and an insulating layer, wherein the bottom cover is connected with the surface cover, and the outer diameter of the bottom cover is more than that of the surface cover; the bottom cover is provided with an upper surface close to the surface cover and a lower surface far from the surface cover; the middle part of the surface cover raises outwards to form a bump; the anti-explosion ball is arranged in the bump; and the insulating layer is arranged in an area in which the diameter of the upper surface of the bottom cover is more than the outer diameter of the surface cover. By the battery positive cap, the insulating layer is arranged in the area in which the diameter of the upper surface of the bottom cover is more than the outer diameter of the surface cover, and the battery positive cap is insulated, so that a metal wire generated by sealing the battery is effectively prevented from overlapping the positive cap and a steel shell, the positive cap and the steel shell are prevented from connecting, and the battery is prevented from zero electricity. Therefore, the battery performance is effectively ensured, and the battery yield is improved.
Description
[technical field]
The present invention relates to a kind of cell apparatus, relate in particular to a kind of anode cap and manufacture method thereof.
[background technology]
Battery has positive electrode cap and box hat, and positive electrode cap and box hat are metal material.
Through the punching press of punch press, have wire and occur during battery seal, wire can connect positive electrode cap and box hat.Because positive electrode cap and box hat are metal material, cause battery zero electricity thereby be communicated with, can't guarantee battery performance, reduced the battery rate of finished products.
Simultaneously, battery in use for the prevention external short circuit, is put face circle paper usually at the positive electrode cap place.But when internal temperature of battery raises, the danger that sealing ring, face circle paper have shrinkage, burn out, and then positive electrode cap is connected with box hat, even be short-circuited, cause danger.
[summary of the invention]
In view of this, be necessary to provide a kind of anode cap that prevents battery zero electricity.
In addition, also provide a kind of anode cap manufacture method that prevents battery zero electricity.
A kind of anode cap, comprise cover, be connected with cover and external diameter greater than bottom and the explosion-proof ball of described cover, described bottom has the upper surface of close cover and away from the lower surface of cover, described cover middle part evagination forms plush copper, described explosion-proof ball is arranged in the described plush copper, also comprises insulating barrier; Described insulating barrier is arranged on described bottom upper surface diameter greater than the zone of described cover external diameter.
Preferably, described insulating barrier also is arranged on the side of described bottom.
Preferably, described insulating barrier also is arranged on described cover upper surface diameter greater than the zone of described plush copper external diameter.
Preferably, described bottom lower surface and plush copper institute are the lug welding position to the zone, and described insulating barrier also is arranged on described bottom lower surface diameter greater than the zone of described lug welding position external diameter.
Preferably, described thickness of insulating layer is 0.1um to 300um.
A kind of anode cap manufacture method comprises the steps:
Form cover, bottom and explosion-proof ball; Described cover is connected with bottom, and the middle part evagination forms plush copper, and described explosion-proof ball is arranged in the plush copper, and described bottom has the upper surface of close cover and away from the lower surface of cover.
Greater than the zone of described cover external diameter insulating barrier is set at described bottom upper surface diameter.
Preferably, the side that also is included in described bottom arranges the step of insulating barrier.
Preferably, described bottom lower surface and described plush copper corresponding region are the lug welding position, and described method also is included in described bottom lower surface diameter arranges insulating barrier greater than the zone of described lug welding position external diameter step.
Preferably, also be included in described cover upper surface diameter arranges insulating barrier greater than the zone of described plush copper external diameter step.
Preferably, described thickness of insulating layer is 0.1um to 300um.
Above-mentioned anode cap, greater than the zone of cover external diameter insulating barrier is set at bottom upper surface diameter, the anode cap is insulated, wire overlap joint positive electrode cap and the box hat of effectively avoiding battery seal to produce, make positive electrode cap and box hat conducting, cause battery zero electricity, thereby effectively guaranteed battery performance, improve the battery rate of finished products.
Simultaneously, insulating barrier is arranged on cover upper surface diameter greater than the zone of plush copper external diameter and the bottom lower surface diameter zone greater than lug welding position diameter, further prevent battery zero, insulating barrier also is arranged on the bottom side, effectively avoid sealing ring shrinkage in the use, burn out and cause making positive electrode cap to be connected with box hat, improve battery performance, prevent short circuit and danger.
[description of drawings]
Fig. 1 is anode cap sectional view among the embodiment;
Fig. 2 is the vertical view of anode cap shown in Figure 1.
[embodiment]
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
Fig. 1 is anode cap schematic diagram among the embodiment, and Fig. 2 is the vertical view of anode cap shown in Figure 1.In conjunction with Fig. 1 and Fig. 2, this anode cap comprises cover 100, the bottom 200 that is connected with cover 100, is arranged on explosion-proof ball 300 and insulating barrier 400 between cover 100 and the bottom 200.
Bottom 200 diameters are 6mm to 30mm, and lower surface (bottom 200 is away from the surface of cover 100) is the lug welding position over against the zone with plush copper 110.Bottom 200 centers have bottom steam vent 210.
Insulating barrier 400 is arranged at bottom 200 upper surfaces (near the surface of cover 100) diameter greater than the zone of cover 100 external diameters; For further guaranteeing insulation effect, the side, cover 100 upper surface diameters that insulating barrier 400 also is located at bottom 200 is greater than the zone of plush copper 110 external diameters and the bottom 200 lower surface diameters zone greater than lug welding position diameter, be that insulating barrier 400 is arranged on the zone of positive electrode cap surface except plush copper 110 and lug welding position, positive electrode cap is insulated.
Insulating barrier 400 thickness are 0.1um to 300um.Insulating barrier 400 materials are coatings, adopt spraying method be formed on bottom 200 upper surface diameters greater than the side of the zone of cover 100 external diameters, bottom 200, cover 100 upper surface diameters greater than the zone of plush copper 110 external diameters and the bottom 200 lower surface diameters zone greater than lug welding position diameter; Perhaps material is electrophoretic paint, adopt the electrochemical means deposition be formed on bottom 200 upper surface diameters greater than the side of the zone of cover 100 external diameters, bottom 200, cover 100 upper surface diameters greater than the zone of plush copper 110 external diameters and the bottom 200 lower surface diameters zone greater than lug welding position diameter.
In other embodiments, insulating barrier 400 can also be insulating cement liquid layer or metal oxide.
This positive electrode cap, insulating barrier 400 is arranged on bottom 200 upper surfaces (near the surface of cover 100) diameter greater than the zone of cover 100 external diameters, cover 100 upper surface diameters are greater than the zone of plush copper 110 external diameters and the bottom 200 lower surface diameters zone greater than lug welding position diameter, positive electrode cap is insulated, make and effectively keep insulation between positive electrode cap and the box hat, when effectively preventing battery seal, wire overlap joint positive electrode cap and box hat cause battery zero, insulating barrier 400 is located at and the side of bottom 200, avoid face circle paper shrinkage in use, burn out positive electrode cap is connected with box hat, be short-circuited, cause danger, thereby greatly guaranteed performance and the rate of finished products of battery, guaranteed the safety that battery uses simultaneously.
In addition, provide a kind of battery cap manufacture method, this method comprises:
Form cover, bottom and explosion-proof ball; Cover is connected with bottom, and the middle part evagination forms plush copper, and explosion-proof ball is arranged in the plush copper, and bottom has the upper surface of close cover and away from the lower surface of cover, lower surface and plush copper are the lug welding position over against the zone.The bottom center has the bottom steam vent.
Greater than the zone of cover external diameter insulating barrier is set at bottom upper surface diameter.
Side at bottom arranges insulating barrier.
Greater than the zone of plush copper external diameter insulating barrier is set at cover upper surface diameter.
Greater than the zone of lug welding position diameter insulating barrier is set at bottom lower surface diameter.
Among this embodiment, insulating barrier is used for positive electrode cap is insulated, and thickness is 0.1um to 300um.The insulating barrier material is coatings, adopt spraying method be respectively formed at bottom upper surface diameter greater than the side of the zone of cover external diameter, bottom, cover upper surface diameter greater than the zone of plush copper external diameter and the bottom lower surface diameter zone greater than lug welding position diameter; Perhaps material is electrophoretic paint, adopt the electrochemical means deposition be respectively formed at bottom upper surface diameter greater than the side of the zone of cover external diameter, bottom, cover upper surface diameter greater than the zone of plush copper external diameter and the bottom lower surface diameter zone greater than lug welding position diameter.
In other embodiments, insulating barrier can also be insulating cement liquid layer or metal oxide.
Above-mentioned anode cap, greater than the zone of cover external diameter insulating barrier is set at bottom upper surface diameter, the anode cap is insulated, wire overlap joint positive electrode cap and the box hat of effectively avoiding battery seal to produce, make positive electrode cap and box hat conducting, cause battery zero electricity, thereby effectively guaranteed battery performance, improve the battery rate of finished products.
Simultaneously, insulating barrier is arranged on cover upper surface diameter greater than the zone of plush copper external diameter and the bottom lower surface diameter zone greater than lug welding position diameter, further prevent battery zero, insulating barrier also is arranged on the bottom side, effectively avoid sealing ring shrinkage in the use, burn out and cause making positive electrode cap to be connected with box hat, improve battery performance, prevent short circuit and danger.
The above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (4)
1. anode cap, comprise cover, be connected with cover and external diameter greater than bottom and the explosion-proof ball of described cover, described bottom has the upper surface of close cover and away from the lower surface of cover, described cover middle part evagination forms plush copper, described explosion-proof ball is arranged in the described plush copper, it is characterized in that, also comprise insulating barrier; Described insulating barrier is arranged on described bottom upper surface diameter greater than the zone of described cover external diameter;
Described insulating barrier is coatings, described coatings adopt spraying method be formed on described bottom upper surface diameter greater than the side of the zone of cover external diameter, described bottom, cover upper surface diameter greater than the zone of described plush copper external diameter and the described bottom lower surface diameter zone greater than lug welding position diameter;
Or described insulating barrier material is electrophoretic paint, described electrophoretic paint adopt the electrochemical means deposition be formed on described bottom upper surface diameter greater than the side of the zone of cover external diameter, described bottom, cover upper surface diameter greater than the zone of described plush copper external diameter and the described bottom lower surface diameter zone greater than lug welding position diameter.
2. anode cap according to claim 1 is characterized in that, described thickness of insulating layer is 0.1um to 300um.
3. an anode cap manufacture method comprises the steps:
Form cover, bottom and explosion-proof ball; Described cover is connected with bottom, and the middle part evagination forms plush copper, and described explosion-proof ball is arranged in the plush copper, and described bottom has the upper surface of close cover and away from the lower surface of cover;
Greater than the zone of described cover external diameter insulating barrier is set at described bottom upper surface diameter;
Described insulating barrier is coatings, described coatings adopt spraying method be formed on described bottom upper surface diameter greater than the side of the zone of cover external diameter, described bottom, cover upper surface diameter greater than the zone of described plush copper external diameter and the described bottom lower surface diameter zone greater than lug welding position diameter;
Or described insulating barrier material is electrophoretic paint, described electrophoretic paint adopt the electrochemical means deposition be formed on described bottom upper surface diameter greater than the side of the zone of cover external diameter, described bottom, cover upper surface diameter greater than the zone of described plush copper external diameter and the described bottom lower surface diameter zone greater than lug welding position diameter.
4. anode cap manufacture method according to claim 3 is characterized in that, described thickness of insulating layer is 0.1um to 300um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100213606A CN102104138B (en) | 2011-01-19 | 2011-01-19 | Battery positive cap and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100213606A CN102104138B (en) | 2011-01-19 | 2011-01-19 | Battery positive cap and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102104138A CN102104138A (en) | 2011-06-22 |
| CN102104138B true CN102104138B (en) | 2013-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100213606A Active CN102104138B (en) | 2011-01-19 | 2011-01-19 | Battery positive cap and manufacturing method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290555A (en) * | 2011-07-18 | 2011-12-21 | 深圳市豪鹏科技有限公司 | Positive electrode cap, steel shell and battery |
| CN102290547B (en) * | 2011-07-28 | 2014-01-08 | 深圳市豪鹏科技有限公司 | Battery anode cap and preparation method thereof and secondary battery using battery anode cap |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2914336Y (en) * | 2005-12-05 | 2007-06-20 | 比亚迪股份有限公司 | Anode cap of battery and battery thereof |
| CN201503878U (en) * | 2009-10-26 | 2010-06-09 | 无锡市金杨新型电源有限公司 | Battery explosion-proof anode cover structure |
| CN101789498A (en) * | 2009-01-23 | 2010-07-28 | 松下能源(无锡)有限公司 | Insulating cap of battery, battery with insulating cap and battery pack thereof |
-
2011
- 2011-01-19 CN CN2011100213606A patent/CN102104138B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2914336Y (en) * | 2005-12-05 | 2007-06-20 | 比亚迪股份有限公司 | Anode cap of battery and battery thereof |
| CN101789498A (en) * | 2009-01-23 | 2010-07-28 | 松下能源(无锡)有限公司 | Insulating cap of battery, battery with insulating cap and battery pack thereof |
| CN201503878U (en) * | 2009-10-26 | 2010-06-09 | 无锡市金杨新型电源有限公司 | Battery explosion-proof anode cover structure |
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| Publication number | Publication date |
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| CN102104138A (en) | 2011-06-22 |
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Address after: 518111 Building 1, 68 Xinxia Avenue, Pinghu street, Longgang District, Shenzhen City, Guangdong Province Patentee after: Shenzhen haopeng Technology Co.,Ltd. Address before: 518111 building A2, Luoshan Industrial Zone, Shanxia, Pinghu Town, Longgang District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN HAOPENG TECHNOLOGY Co.,Ltd. |