CN103647031A - Battery insulating and sealing structure - Google Patents
Battery insulating and sealing structure Download PDFInfo
- Publication number
- CN103647031A CN103647031A CN201310648657.4A CN201310648657A CN103647031A CN 103647031 A CN103647031 A CN 103647031A CN 201310648657 A CN201310648657 A CN 201310648657A CN 103647031 A CN103647031 A CN 103647031A
- Authority
- CN
- China
- Prior art keywords
- becket
- sealed construction
- pole
- battery
- cover 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 43
- 238000009413 insulation Methods 0.000 claims abstract description 39
- 238000010276 construction Methods 0.000 claims description 24
- 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 11
- 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
- 238000003466 welding Methods 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
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 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
- 208000034189 Sclerosis Diseases 0.000 description 2
- 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
- 239000000155 melt Substances 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
- 239000003792 electrolyte Substances 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Images
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 invention relates to a battery insulating and sealing structure which comprises a battery shell, a cover plate arranged on the battery shell, and a positive pole and a negative pole inserted into the cover plate, wherein a metal ring and a sealing ring subjected to surface insulation treatment and a riveting piece are arranged between the poles and the cover plate so as to form a sealing structure; the metal ring and the sealing ring and the metal ring and the riveting piece are in immovable fit respectively. The battery insulating and sealing structure has the advantages that the sealing and insulating performances are improved, the service life is prolonged, and the battery insulating and sealing structure is suitable for sealing and fastening a large-size battery.
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 be born larger pressure, and require total to there is insulation, high temperature resistant, guarantee the insulation between pole and cover plate, strutting piece is generally used the organic materials such as PP, and (inorganic material fragility is large, cracky during fastening operation; Metal material conduction), but the high-temperature behavior of organic material is relatively poor, and the situation that sclerosis even melts at high temperature can occur, and now can cause the short circuit between pole and cover plate, the danger that can blast when 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 hand-hole; Wherein, the shape of the shape of described insulation cover plate and lithium battery casing inwall adapts, 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 make.In this structure, each seal member is plastic material and makes, and its shortcoming as mentioned above, fragility is large, and the situation that sclerosis even melts at high temperature can occur cracky during fastening operation, now can cause the short circuit between pole and cover plate, the danger that can blast when serious.
In addition, in the various fastening means of existing battery, riveting is longer fastening means of life-span, 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 difficultly realizes by riveting mode.
Summary of the invention
Technical problem to be solved by this invention is, a kind of improvement sealing and insulation property, increase useful life is provided, and is applicable to large scale battery and seals fastening battery insulation hermetically-sealed construction.
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, between described pole and cover plate, be provided with the becket processed through surface insulation and sealing ring, riveting parts forms hermetically-sealed construction, described becket and sealing ring, becket and riveting parts secure fit.
In this programme, between described pole and cover plate, be provided with the becket processed through surface insulation and sealing ring, riveting parts forms hermetically-sealed construction, make battery there is corrosion-resistant, high temperature resistant, high tenacity, shock resistance, good electrical property, hot property, reliability and the life-span of effectively improving cell sealing; Utilization, with the sealing ring of insulation processing layer, can effectively 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, sealing ring is located under cover plate and pole between shoulder, 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 thick oxide or the nitride layer of a layer thickness 5 ~ 80 μ m.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, its surface forms aluminium nitride or alumina layer.
In order further to improve the Wear-resistant, high-temperature resistant of becket, 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.Described pole and cover plate, riveting parts, the corresponding face of becket are coated with oxide or nitride layer, and on oxide or nitride layer the resistant to elevated temperatures organic coating of spraying abrasion-proof.
Further, between described becket, riveting parts, sealing ring and pole, by riveting, welding, 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 by being provided with the becket processed through surface insulation and sealing ring between described pole and cover plate, riveting parts forms hermetically-sealed construction, make battery there is corrosion-resistant, high temperature resistant, high tenacity, shock resistance, good electrical property, hot property, reliability and the life-span of effectively improving 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, comprise battery container, be located at the cover plate 1 on battery container and be plugged in the positive and negative pole 2 on cover plate 1,1 of described pole 2 and cover plate are provided with the becket 3 processed through surface insulation and sealing ring 4, riveting parts 5 forms hermetically-sealed constructions, described becket 3 and sealing ring 4, becket 3 and riveting parts 5 secure fit.Described pole 2 comprises shoulder 21, lower shoulder 22 and the sidewall 23 between upper and lower shoulder 21,22, described becket 3 is located at sidewall 23 peripheries, sealing ring 4 is located between lower shoulder 22 and cover plate 1, riveting parts 5 is located on the upper shoulder 21 of pole 2 and is coordinated with the top of becket 3, and the end 24 of pole 2 is exposed by the through hole on riveting parts 5.Between described becket 3, riveting parts 5, sealing ring 4 and pole 2, by riveting, welding, carry out fit sealing.Described sealing ring 4 is rubber seal.
Described becket surface, through surface treatment modes such as anodic oxidation or plating, forms thick oxide or the nitride layer of a layer thickness 5 ~ 80 μ m.In the present embodiment, the material of described becket is aluminium, its surface forms aln layer, the thickness of aln layer is 50 μ m, there is characteristic 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 will be got well compared with organic rubber and inorganic material.
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 is similar with FEP to PTFE, but when 302T is above, mechanical performance is slightly better than FEP, and can at the temperature up under 500F, use, and its chemical-resistant and PTFE are suitable.Be suitable for making corrosion barrier, anti-attrition wearing piece, seal, insulating part, be used in and on cell sealing-structure, 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.Described pole and cover plate, riveting parts, the corresponding face of becket are 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, at the PFA organic coating of the corresponding about 0.1mm of face spraying a layer thickness of pole and cover plate, riveting parts, becket.
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, it is carried out to anodized, make becket, cover plate, Positive Poles surface form the aln layer of a layer thickness 50 μ m;
2, the PFA coating of the about 0.1mm of negative pole pole surface spraying a layer thickness;
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 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 also giving all execution modes.All any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in the protection range of the claims in the present invention.
Claims (10)
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, between described pole and cover plate, be provided with the becket processed through surface insulation and sealing ring, riveting parts forms hermetically-sealed construction, described becket and sealing ring, becket and riveting parts secure fit.
2. battery insulation hermetically-sealed construction according to claim 1, it is characterized in that, described pole comprises shoulder, lower shoulder and the sidewall between takeing on up and down, described becket is located at side wall perimeter, sealing ring is located under cover plate and pole between shoulder, 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.
3. battery insulation hermetically-sealed construction according to claim 1, is characterized in that, described becket surface has thick oxide or the nitride layer of a layer thickness 5 ~ 80 μ m.
4. battery insulation hermetically-sealed construction according to claim 3, is characterized in that, the material of described becket is aluminium or aluminium alloy, and its surface forms aluminium nitride or alumina layer.
5. battery insulation hermetically-sealed construction according to claim 3, is characterized in that, the organic coating of the surface spraying Wear-resistant, high-temperature resistant of described becket.
6. battery insulation hermetically-sealed construction according to claim 5, is characterized in that, described organic coating comprises perfluoroalkoxy resin or polytetrafluoroethylene.
7. 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.
8. battery insulation hermetically-sealed construction according to claim 2, it is characterized in that, described pole and cover plate, riveting parts, the corresponding face of becket are coated with oxide or nitride layer, and on oxide or nitride layer the resistant to elevated temperatures organic coating of spraying abrasion-proof.
9. battery insulation hermetically-sealed construction according to claim 1, is characterized in that, between described becket, riveting parts, sealing ring and pole, by riveting, welding, carries out fit sealing.
10. 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 true CN103647031A (en) | 2014-03-19 |
| CN103647031B CN103647031B (en) | 2016-01-13 |
Family
ID=50252223
Family Applications (1)
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103647031B (en) |
Cited By (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 |
| CN109690811A (en) * | 2016-09-20 | 2019-04-26 | 三星Sdi株式会社 | Secondary cell |
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 |
| 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 |
| CN103378321A (en) * | 2012-04-20 | 2013-10-30 | 比亚迪股份有限公司 | Cover plate component and battery with same |
| 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 |
| 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 |
| CN103378321A (en) * | 2012-04-20 | 2013-10-30 | 比亚迪股份有限公司 | Cover plate component and battery with same |
| 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 |
Cited By (5)
| 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 |
| CN109690811A (en) * | 2016-09-20 | 2019-04-26 | 三星Sdi株式会社 | Secondary cell |
| CN109690811B (en) * | 2016-09-20 | 2022-04-26 | 三星Sdi株式会社 | Secondary battery |
| US11349170B2 (en) | 2016-09-20 | 2022-05-31 | Samsung Sdi Co., Ltd. | Secondary battery including insulation sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103647031B (en) | 2016-01-13 |
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