CN103824979A - Double-stud type lithium ion power battery cover plate structure - Google Patents
Double-stud type lithium ion power battery cover plate structure Download PDFInfo
- Publication number
- CN103824979A CN103824979A CN201410098408.7A CN201410098408A CN103824979A CN 103824979 A CN103824979 A CN 103824979A CN 201410098408 A CN201410098408 A CN 201410098408A CN 103824979 A CN103824979 A CN 103824979A
- Authority
- CN
- China
- Prior art keywords
- pole
- cover plate
- pressing plate
- lithium ion
- double
- 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.)
- Pending
Links
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title abstract description 15
- 229910001416 lithium ion Inorganic materials 0.000 title abstract description 15
- 238000001746 injection moulding Methods 0.000 claims abstract description 9
- 239000000919 ceramic Substances 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims abstract description 4
- 238000003825 pressing Methods 0.000 claims description 37
- 238000012545 processing Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 10
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000005538 encapsulation Methods 0.000 abstract 1
- 238000004880 explosion Methods 0.000 abstract 1
- 230000000670 limiting effect Effects 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000009827 uniform distribution Methods 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
-
- 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
-
- 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)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a double-stud type lithium ion power battery cover plate structure, and relates to a lithium ion battery. The double-stud type lithium ion power battery cover plate structure comprises a cover plate, plastic sealing parts, a pole, a ceramic insulation sheet and an anti-explosion valve; the double-stud type lithium ion power battery cover plate structure is characterized in that the studs after adapter coupling are arranged on the outer side of the cover plate, a hole is formed in a position for penetrating of a pole pressure plate and the pole so as to allow a pole assembly to pass, the plastic sealing parts are arranged between the cover plate and the pole and between the pole pressure plate and the cover plate, and the pole pressure plate is arranged on the plastic sealing part on the outer side of the cover board. According to the double-stud type lithium ion power battery cover plate structure, a stud and pole non-collinear structure is designed on the cover board for preventing the pole from rotating; injection molding and encapsulation are carried out on the periphery of the pole pressure plate to achieve a limiting effect; the area of the pole pressure plate is increased to ensure the connecting reliability and meet the requirement of the electrical conductivity.
Description
Technical field
The present invention relates to lithium ion battery, particularly relate to a kind of two bolt structure cover plates of lithium ion power battery structure.
Background technology
The cover plate of conventional lithium-ion-power cell comprises that cover plate, plastic seal, pole, insulating trip, explosion-protection equipment form substantially.If the pole above cover plate adopts the outside double-screw bolt mode connecting of being convenient to, pole also plays the effect of fastening plastic seal sealing in conduction, in the process that outside batteries connects, can make pole twisting, driving the sheet twisting of confluxing simultaneously, easily cause battery short circuit or open circuit, there is gap in sealing place, and then the leakage that can bring electrolyte, thereby bring very serious consequence.In addition, because battery generally can not use separately, just can bring into play the effectiveness of battery maximum after need to carrying out in groups, the reliability therefore connecting for outside seems particularly important.
Summary of the invention
In view of this, the object of the invention is the problem existing in above-mentioned background technology, provide a kind of two bolt structure cover plates of lithium ion power battery structures, the problem that is difficult for taking into account to solve reliability that pole avoids rotating and then avoid Problem of Failure, safety problem and the battery of cover plate in the middle of using to use in groups peripheral connecting when outside connects, fail safe, maintainability etc.
For this reason, the invention provides a kind of two bolt structure cover plates of lithium ion power battery structure, described pair of bolt structure cover plates of lithium ion power battery structure comprises cover plate, plastic seal, pole, ceramic insulation sheet, explosion-proof valve, double-screw bolt after cover plate arranged outside switching, pole pressing plate and pole need through position perforate for pole assemble through use; Between cover plate and pole, plastic seal is set, between pole pressing plate and cover plate, plastic seal is set, above plastic seal, all place pole pressing plate outside cover plate.
Preferably, one end of described pole is to be connected required plane with the sheet that confluxes, and the other end is the cylindrical end of riveted joint pole pressing plate.
Preferably, described pole pressing plate and pole need through position perforate be circular hole.
Preferably, described pole pressing plate adopts fine aluminium material.
Preferably, the surrounding of described pole pressing plate is done the processing of injection moulding encapsulate.
Preferably, the edge of described pole cylinder end face and pole pressing plate contact site carry out the all-round processing of laser welding.
From above technical scheme provided by the invention; the present invention has following technique effect: because double-screw bolt and pole be not in same position; in the time that connecting twisting double-screw bolt in groups, battery can not produce twisting action to pole; the injection moulding encapsulate of pole pressing plate surrounding further limits the displacement of pole pressing plate in addition; protect the sealing effectiveness of pole position, avoided the generation of safety problem.From conduction, electric current is directly to pass to outside batteries by the sheet that confluxes from pole planar ends to be connected with external connection terminals, reduces common riveted joint interface and further reduces contact resistance.On the basis of riveting with cover plate aspect pole, increase laser welding and increased pole and pole pressing plate connection reliability, increased the connection area of pole pressing plate simultaneously, increased the reliability connecting in groups.
accompanying drawing explanation
Fig. 1, Fig. 2 are the structural representation of a kind of pair of bolt structure cover plates of lithium ion power battery structure provided by the invention.
Fig. 3 is the structural representation after a kind of pair of bolt structure cover plates of lithium ion power battery textural association provided by the invention.
Fig. 4 is the battery structure schematic diagram of a kind of pair of bolt structure cover plates of lithium ion power battery structure provided by the invention.
Wherein, 1-cover plate 2-explosion-proof valve 3-liquid injection hole 4-negative terminal tapping
5-positive terminal tapping 6-negative terminal 7-negative pole double-screw bolt 8-voltage monitoring position
The anodal double-screw bolt 11-of 9-voltage monitoring position 10-positive terminal 12-negative pole indicates
13-pole pressing plate 14-injection moulding encapsulate 15-injection moulding encapsulate 16-pole pressing plate
The anodal 18-battery container that indicates of 17-.
Embodiment
In order to make those skilled in the art person understand better the present invention program, below in conjunction with accompanying drawing, the present invention is described in further detail:
The covering plate structure of a kind of pair of bolt structure lithium-ion-power cell, the covering plate structure of described a kind of pair of bolt structure lithium-ion-power cell comprises cover plate, plastic seal, pole, ceramic insulation sheet, explosion-proof valve, after cover plate outside is battery assembling, prepare to connect in groups a side double-screw bolt after switching be set, pole pressing plate and pole need through position perforate for pole assemble through use.Between cover plate and pole, plastic seal is set, between pole pressing plate and cover plate, plastic seal is set, in technique, adopt integrated injection molding mode to realize.Outside cover plate, above plastic seal, all place pole pressing plate, after pole column riveting, play even rivet force, make the sealing effectiveness of plastic seal reach best, play delivered current simultaneously, improve battery reliability and conforming effect in groups.Be provided with double-screw bolt below at pole pressing plate place and be convenient to battery connection and maintenance in groups.
One end of described pole is to be connected required plane with the sheet that confluxes, and the other end is the cylindrical end that needs follow-up riveted joint pole pressing plate.The sheet that confluxes is that inside battery electric current is collected to the structural member that conducts to pole.
Described pole pressing plate and pole need through position perforate be circular hole, in the time of follow-up riveted joint, can play and suppress plastic seal distortion, thereby reach sealing effectiveness.
The size of described pole pressing plate is larger, and object is the downforce producing for can uniform distribution riveted joint when the pole column riveting, is conducive to cover plate for sealing.
Described pole pressing plate adopts fine aluminium material, can guarantee like this ability of overcurrent, and the twisting trend in order further to suppress when outside batteries connects, pole to be produced, does the processing of injection moulding encapsulate in the surrounding of pole pressing plate in addition.
Above-mentioned after pole column riveting completes, the edge of pole cylinder end face and pole pressing plate contact site are carried out to the all-round processing of laser welding, further guarantee pole and the reliability that pole pressing plate is connected with cover plate, reduce and guarantee the consistency of contact resistance.
From above technical scheme provided by the invention; the present invention has following technique effect: because double-screw bolt and pole be not in same position; in the time that connecting twisting double-screw bolt in groups, battery can not produce twisting action to pole; the injection moulding encapsulate of pole pressing plate surrounding further limits the displacement of pole pressing plate in addition; protect the sealing effectiveness of pole position, avoided the generation of safety problem.From conduction, electric current is directly to pass to outside batteries by the sheet that confluxes from pole planar ends to be connected with external connection terminals, reduces common riveted joint interface and further reduces contact resistance.On the basis of riveting with cover plate aspect pole, increase laser welding and increased pole and pole pressing plate connection reliability, increased the connection area of pole pressing plate simultaneously, increased the reliability connecting in groups.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. the covering plate structure of two bolt structure lithium-ion-power cells, the covering plate structure of described pair of bolt structure lithium-ion-power cell comprises cover plate, plastic seal, pole, ceramic insulation sheet, explosion-proof valve, it is characterized in that: the double-screw bolt after cover plate arranged outside switching, pole pressing plate and pole need through position perforate for pole assemble through use; Between cover plate and pole, plastic seal is set, between pole pressing plate and cover plate, plastic seal is set, above plastic seal, all place pole pressing plate outside cover plate.
2. the covering plate structure of a kind of pair of bolt structure lithium-ion-power cell according to claim 1, is characterized in that: one end of described pole is to be connected required plane with the sheet that confluxes, and the other end is the cylindrical end of riveted joint pole pressing plate.
3. the covering plate structure of a kind of pair of bolt structure lithium-ion-power cell according to claim 1, is characterized in that: described pole pressing plate and pole need through position perforate be circular hole.
4. the covering plate structure of a kind of pair of bolt structure lithium-ion-power cell according to claim 1, is characterized in that: described pole pressing plate adopts fine aluminium material.
5. the covering plate structure of a kind of pair of bolt structure lithium-ion-power cell according to claim 1, is characterized in that: the surrounding of described pole pressing plate is done the processing of injection moulding encapsulate.
6. the covering plate structure of a kind of pair of bolt structure lithium-ion-power cell according to claim 1, is characterized in that: the edge of described pole cylinder end face and pole pressing plate contact site carry out the all-round processing of laser welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410098408.7A CN103824979A (en) | 2014-03-18 | 2014-03-18 | Double-stud type lithium ion power battery cover plate structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410098408.7A CN103824979A (en) | 2014-03-18 | 2014-03-18 | Double-stud type lithium ion power battery cover plate structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103824979A true CN103824979A (en) | 2014-05-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410098408.7A Pending CN103824979A (en) | 2014-03-18 | 2014-03-18 | Double-stud type lithium ion power battery cover plate structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103824979A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106299172A (en) * | 2016-09-30 | 2017-01-04 | 合肥力翔电池科技有限责任公司 | A kind of lithium ion battery cover board |
| CN106450068A (en) * | 2016-10-26 | 2017-02-22 | 东莞市盖瓷新能源科技有限公司 | Power battery polar column ceramic sealing device and sealing achieving method |
| CN106450062A (en) * | 2016-09-30 | 2017-02-22 | 浙江中泽电气有限公司 | Cover plate structure of power battery and power battery |
| CN108539063A (en) * | 2018-06-11 | 2018-09-14 | 浙江锦泰电子有限公司 | A kind of battery cover board electrode assembly and battery |
| CN108544083A (en) * | 2018-06-25 | 2018-09-18 | 大族激光科技产业集团股份有限公司 | Power battery, head cover negative pole structure and its welding method |
| CN110120473A (en) * | 2018-02-07 | 2019-08-13 | 比亚迪股份有限公司 | Cell sealing cap assemblies, battery and battery pack |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2865002Y (en) * | 2005-12-07 | 2007-01-31 | 青岛市家用电器研究所 | Lithium ion electrokinetic cell cover board |
| JP2012033395A (en) * | 2010-07-30 | 2012-02-16 | Hitachi Vehicle Energy Ltd | Nonaqueous electrolyte secondary battery |
| US20140023914A1 (en) * | 2012-07-17 | 2014-01-23 | Sanyo Electric Co., Ltd. | Prismatic secondary battery |
| JP2014017260A (en) * | 2013-09-24 | 2014-01-30 | Gs Yuasa Corp | Battery and manufacturing method therefor |
-
2014
- 2014-03-18 CN CN201410098408.7A patent/CN103824979A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2865002Y (en) * | 2005-12-07 | 2007-01-31 | 青岛市家用电器研究所 | Lithium ion electrokinetic cell cover board |
| JP2012033395A (en) * | 2010-07-30 | 2012-02-16 | Hitachi Vehicle Energy Ltd | Nonaqueous electrolyte secondary battery |
| US20140023914A1 (en) * | 2012-07-17 | 2014-01-23 | Sanyo Electric Co., Ltd. | Prismatic secondary battery |
| JP2014017260A (en) * | 2013-09-24 | 2014-01-30 | Gs Yuasa Corp | Battery and manufacturing method therefor |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106299172A (en) * | 2016-09-30 | 2017-01-04 | 合肥力翔电池科技有限责任公司 | A kind of lithium ion battery cover board |
| CN106450062A (en) * | 2016-09-30 | 2017-02-22 | 浙江中泽电气有限公司 | Cover plate structure of power battery and power battery |
| CN106450068A (en) * | 2016-10-26 | 2017-02-22 | 东莞市盖瓷新能源科技有限公司 | Power battery polar column ceramic sealing device and sealing achieving method |
| CN110120473A (en) * | 2018-02-07 | 2019-08-13 | 比亚迪股份有限公司 | Cell sealing cap assemblies, battery and battery pack |
| CN108539063A (en) * | 2018-06-11 | 2018-09-14 | 浙江锦泰电子有限公司 | A kind of battery cover board electrode assembly and battery |
| CN108544083A (en) * | 2018-06-25 | 2018-09-18 | 大族激光科技产业集团股份有限公司 | Power battery, head cover negative pole structure and its welding method |
| CN108544083B (en) * | 2018-06-25 | 2020-09-22 | 大族激光科技产业集团股份有限公司 | Power battery, top cover negative electrode structure and welding method thereof |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140528 |