CN103647031B - A kind of battery insulation hermetically-sealed construction - Google Patents
A kind of battery insulation hermetically-sealed construction Download PDFInfo
- Publication number
- CN103647031B CN103647031B CN201310648657.4A CN201310648657A CN103647031B CN 103647031 B CN103647031 B CN 103647031B CN 201310648657 A CN201310648657 A CN 201310648657A CN 103647031 B CN103647031 B CN 103647031B
- Authority
- CN
- China
- Prior art keywords
- becket
- sealed construction
- pole
- cover plate
- hermetically
- 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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- 238000009413 insulation Methods 0.000 title claims abstract description 40
- 238000010276 construction Methods 0.000 title claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 39
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims description 15
- 238000000576 coating method Methods 0.000 claims description 15
- 150000004767 nitrides Chemical class 0.000 claims description 15
- 238000005507 spraying Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 7
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229920001774 Perfluoroether Polymers 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229910017083 AlN Inorganic materials 0.000 claims description 2
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 229910001334 3003 aluminium alloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000007921 spray Substances 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
- H01M50/183—Sealing members
-
- 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)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The present invention relates to a kind of battery insulation hermetically-sealed construction, comprise battery container, be located at the cover plate on battery container and be plugged in the positive and negative pole on cover plate, wherein, be provided with between described pole and cover plate and form hermetically-sealed construction, described becket and sealing ring, becket and riveting parts secure fit through the becket of surface insulation process and sealing ring, riveting parts.The present invention possesses and improves sealing and insulation property, increase useful life, and is applicable to the advantages such as large scale cell sealing is fastening.
Description
Technical field
The present invention relates to cell sealing technical field, more specifically, relate to the battery insulation hermetically-sealed construction of a kind of hybrid vehicle or pure electric vehicle power.
Background technology
Sealing between current driving force battery electrode column and cover plate generally relies on the mode lock sealing structures such as riveting, buckle, nut, realize sealing, because this structure need bear larger pressure, and require that total has insulation, high temperature resistant, ensure the insulation between pole and cover plate, strutting piece generally uses the organic materials such as PP, and (inorganic material fragility is large, cracky during tightening operation; Metal material conducts electricity), but the high-temperature behavior of organic material is relatively poor, situation about even melting of at high temperature hardening, and now can cause the short circuit between pole and cover plate, the danger can blasted time serious.
As Chinese patent CN201220612829.3, name is called a kind of insulation system of lithium battery, and it specifically discloses, and described insulation system comprises insulation cover plate, insulation boss, sealing plate, through hole, sealing spacer ring and electrolyte injection hole; Wherein, the shape of described insulation cover plate and the shape of lithium battery casing inwall adapt, and described insulation cover plate has insulation boss, and insulation boss has through hole; Sealing plate is positioned at insulation cover plate edge, and insulation cover plate is fixed on the inwall of lithium battery casing.Described insulation cover plate, insulation boss, sealing plate are plastic material and obtain.In this structure, each seal member is plastic material and obtains, and its shortcoming is described above, fragility is large, cracky during tightening operation, situation about even melting of at high temperature hardening, now can cause the short circuit between pole and cover plate, the danger can blasted time serious.
In addition, in the various fastening means of existing battery, riveting is life-span longer fastening means, but for large-sized battery, because riveting pressure is larger, high to the performance requirement of seal structural part, so the sealing of large scale battery, more difficult riveting mode realizes.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of and improves sealing and insulation property, increase useful life, and be applicable to the fastening battery insulation hermetically-sealed construction of large scale cell sealing.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of battery insulation hermetically-sealed construction, comprise battery container, be located at the cover plate on battery container and be plugged in the positive and negative pole on cover plate, be provided with between described pole and cover plate and form hermetically-sealed construction, described becket and sealing ring, becket and riveting parts secure fit through the becket of surface insulation process and sealing ring, riveting parts.
In this programme, be provided with between described pole and cover plate and form hermetically-sealed construction through the becket of surface insulation process and sealing ring, riveting parts, make battery have corrosion-resistant, high temperature resistant, high tenacity, shock resistance, good electrical property, hot property, effectively improve reliability and the life-span of cell sealing; Utilize the sealing ring with insulation processing layer, effectively can increase the fastening force between each part.
Concrete, described pole comprises shoulder, lower shoulder and the sidewall between takeing on up and down, described becket is located at side wall perimeter, between sealing ring is takeed under being located at cover plate and pole, riveting parts be located at pole on take on and coordinate with the top of becket, and the end of pole is exposed by the through hole on riveting parts.
Described becket surface has the thick oxide of a layer thickness 5 ~ 80 μm or nitride layer.In this programme, there is corrosion-resistant, resisting temperature and impact and good insulating properties, chemical stability, and becket has the high tenacity feature of metal base, can carry out the techniques such as riveting and be fixed.
Concrete, the material of described becket is aluminium or aluminium alloy, and its surface forms aluminium nitride or alumina layer.
In order to improve the Wear-resistant, high-temperature resistant of becket further, the organic coating of the surface spraying Wear-resistant, high-temperature resistant of described becket.Concrete, described organic coating is perfluoroalkoxy resin or polytetrafluoroethylene.
Described cover plate and pole, except conductive site, the surface treatment same with becket all can be done in other positions, increase the insulating properties of hermetically-sealed construction, concrete, described lid surface is coated with oxide or nitride layer, and on oxide or nitride layer the resistant to elevated temperatures organic coating of spraying abrasion-proof.The corresponding face of described pole and cover plate, riveting parts, becket is coated with oxide or nitride layer, and on oxide or nitride layer the resistant to elevated temperatures organic coating of spraying abrasion-proof.
Further, described becket, riveting parts, between sealing ring with pole by riveting, weld and carry out fit sealing.Described sealing ring is rubber seal.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention forms hermetically-sealed construction by being provided with between described pole and cover plate through the becket of surface insulation process and sealing ring, riveting parts, make battery have corrosion-resistant, high temperature resistant, high tenacity, shock resistance, good electrical property, hot property, effectively improve reliability and the life-span of cell sealing.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of battery insulation hermetically-sealed construction of the present invention.
Embodiment
Below in conjunction with specific embodiment, the present invention is further illustrated.
As shown in Figure 1, the present invention discloses a kind of battery insulation hermetically-sealed construction, the positive and negative pole 2 comprising battery container, be located at the cover plate 1 on battery container and be plugged on cover plate 1, be provided with between described pole 2 and cover plate 1 and form hermetically-sealed construction, described becket 3 and sealing ring 4, becket 3 and riveting parts 5 secure fit through the becket 3 of surface insulation process and sealing ring 4, riveting parts 5.Described pole 2 comprises shoulder 21, lower shoulder 22 and the sidewall 23 between upper and lower shoulder 21,22, it is peripheral that described becket 3 is located at sidewall 23, sealing ring 4 is located between lower shoulder 22 and cover plate 1, the upper shoulder 21 that riveting parts 5 is located at pole 2 coordinates with the top of becket 3, and the end 24 of pole 2 is exposed by the through hole on riveting parts 5.Described becket 3, riveting parts 5, between sealing ring 4 with pole 2 by riveting, weld and carry out fit sealing.Described sealing ring 4 is rubber seal.
Described becket surface, through the surface treatment mode such as anodic oxidation or plating, forms the thick oxide of a layer thickness 5 ~ 80 μm or nitride layer.In the present embodiment, the material of described becket is aluminium, its surface forms aln layer, the thickness of aln layer is 50 μm, there is characteristic that is high temperature resistant, corrosion-resistant, insulation, and because base material is aluminum metal or aluminium alloy, the ductility of structural member and impact resistance will comparatively organic rubber and inorganic material will be got well.
The organic coating of the surface spraying Wear-resistant, high-temperature resistant of described becket.Described organic coating includes but not limited to perfluoroalkoxy resin (PFA) or polytetrafluoroethylene (PTFE).Described organic coating PFA resin is the fluoroplastics of newer melt-processable comparatively speaking.The fusing point of PFA is approximately 580F, and density is 2.13 ~ 2.16g/cc(gram/cc).PFA and PTFE is similar with FEP, but when more than 302T, mechanical performance is slightly better than FEP, and can use at up to the temperature under 500F, and its chemical-resistant is suitable with PTFE.Be suitable for making corrosion barrier, anti-attrition wearing piece, seal, insulating part, be used on cell sealing-structure and have good insulated enclosure effect.
Described lid surface is coated with oxide or nitride layer, and on oxide or nitride layer the resistant to elevated temperatures organic coating of spraying abrasion-proof.The corresponding face of described pole and cover plate, riveting parts, becket is coated with oxide or nitride layer, and on oxide or nitride layer the resistant to elevated temperatures organic coating of spraying abrasion-proof.In the present embodiment, the face corresponding at pole and cover plate, riveting parts, becket sprays the PFA organic coating that a layer thickness is about 0.1mm.
Operational sequence of the present invention comprises the following steps:
1, use 3003 aluminium alloys as the base material of becket, cover plate, Positive Poles, anodized is carried out to it, make becket, cover plate, Positive Poles surface form the aln layer of a layer thickness 50 μm;
2, negative pole pole surface spraying a layer thickness is about the PFA coating of 0.1mm;
3, pole, rubber seal, strutting piece, riveting part and cover plate are connected together as shown in structure chart, and use riveter to carry out riveting, make hermetically-sealed construction be in impaction state, realize the sealing of hermetically-sealed construction.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.All any amendments done within the spirit and principles in the present invention, equivalent to replace and improvement etc., within the protection range that all should be included in the claims in the present invention.
Claims (8)
1. a battery insulation hermetically-sealed construction, comprise battery container, be located at the cover plate on battery container and be plugged in the positive and negative pole on cover plate, it is characterized in that, be provided with between described pole and cover plate and form hermetically-sealed construction, described becket and sealing ring, becket and riveting parts secure fit through the becket of surface insulation process and sealing ring, riveting parts;
Described pole comprises shoulder, lower shoulder and the sidewall between takeing on up and down, described becket is located at side wall perimeter, between sealing ring is takeed under being located at cover plate and pole, riveting parts be located at pole on take on and coordinate with the top of becket, and the end of pole is exposed by the through hole on riveting parts; Described becket surface has the thick oxide of a layer thickness 5 ~ 80 μm or nitride layer.
2. battery insulation hermetically-sealed construction according to claim 1, is characterized in that, the material of described becket is aluminium or aluminium alloy, and its surface forms aluminium nitride or alumina layer.
3. battery insulation hermetically-sealed construction according to claim 1, is characterized in that, the organic coating of the surface spraying Wear-resistant, high-temperature resistant of described becket.
4. battery insulation hermetically-sealed construction according to claim 3, is characterized in that, described organic coating comprises perfluoroalkoxy resin or polytetrafluoroethylene.
5. battery insulation hermetically-sealed construction according to claim 1, is characterized in that, described lid surface is coated with oxide or nitride layer, and on oxide or nitride layer the resistant to elevated temperatures organic coating of spraying abrasion-proof.
6. battery insulation hermetically-sealed construction according to claim 1, it is characterized in that, the corresponding face of described pole and cover plate, riveting parts, becket is coated with oxide or nitride layer, and on oxide or nitride layer the resistant to elevated temperatures organic coating of spraying abrasion-proof.
7. battery insulation hermetically-sealed construction according to claim 1, is characterized in that, described becket, riveting parts, between sealing ring with pole by riveting, weld and carry out fit sealing.
8. battery insulation hermetically-sealed construction according to claim 1, is characterized in that, described sealing ring is rubber seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310648657.4A CN103647031B (en) | 2013-12-06 | 2013-12-06 | A kind of battery insulation hermetically-sealed construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310648657.4A CN103647031B (en) | 2013-12-06 | 2013-12-06 | A kind of battery insulation hermetically-sealed construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103647031A CN103647031A (en) | 2014-03-19 |
| CN103647031B true CN103647031B (en) | 2016-01-13 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310648657.4A Active CN103647031B (en) | 2013-12-06 | 2013-12-06 | A kind of battery insulation hermetically-sealed construction |
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| Country | Link |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104409668A (en) * | 2014-11-23 | 2015-03-11 | 深圳市科达利实业股份有限公司 | Power battery top cover with high sealing property and buffering property and processing method for power battery top cover |
| CN104409667A (en) * | 2014-11-23 | 2015-03-11 | 深圳市科达利实业股份有限公司 | Power battery top cover with high sealing property and processing method for power battery top cover |
| KR102642159B1 (en) * | 2016-09-20 | 2024-03-04 | 삼성에스디아이 주식회사 | secondary battery |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202601738U (en) * | 2012-04-20 | 2012-12-12 | 比亚迪股份有限公司 | Cover plate component and battery comprising cover plate component |
| CN202749427U (en) * | 2012-09-27 | 2013-02-20 | 哈尔滨光宇电源股份有限公司 | Cover plate of lithium ion power battery |
| CN103378321A (en) * | 2012-04-20 | 2013-10-30 | 比亚迪股份有限公司 | Cover plate component and battery with same |
| CN103378343A (en) * | 2012-04-20 | 2013-10-30 | 比亚迪股份有限公司 | Electrode terminal, cover plate component and battery with cover plate component |
| CN203574025U (en) * | 2013-12-06 | 2014-04-30 | 广州力柏电动科技有限公司 | Battery insulated sealing structure |
-
2013
- 2013-12-06 CN CN201310648657.4A patent/CN103647031B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202601738U (en) * | 2012-04-20 | 2012-12-12 | 比亚迪股份有限公司 | Cover plate component and battery comprising cover plate component |
| CN103378321A (en) * | 2012-04-20 | 2013-10-30 | 比亚迪股份有限公司 | Cover plate component and battery with same |
| CN103378343A (en) * | 2012-04-20 | 2013-10-30 | 比亚迪股份有限公司 | Electrode terminal, cover plate component and battery with cover plate component |
| CN202749427U (en) * | 2012-09-27 | 2013-02-20 | 哈尔滨光宇电源股份有限公司 | Cover plate of lithium ion power battery |
| CN203574025U (en) * | 2013-12-06 | 2014-04-30 | 广州力柏电动科技有限公司 | Battery insulated sealing structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103647031A (en) | 2014-03-19 |
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