CN102637835A - Cover plate structure and battery case for lithium ion battery and lithium ion battery - Google Patents
Cover plate structure and battery case for lithium ion battery and lithium ion battery Download PDFInfo
- Publication number
- CN102637835A CN102637835A CN2012100466587A CN201210046658A CN102637835A CN 102637835 A CN102637835 A CN 102637835A CN 2012100466587 A CN2012100466587 A CN 2012100466587A CN 201210046658 A CN201210046658 A CN 201210046658A CN 102637835 A CN102637835 A CN 102637835A
- Authority
- CN
- China
- Prior art keywords
- cover plate
- lithium ion
- ion battery
- battery
- negative terminal
- 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
Images
Classifications
-
- 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
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses a cover plate structure for a lithium ion battery, which relates to lithium ion batteries and comprises a cover plate, a plastic seal part, pole columns, a ceramic insulating plate and an explosion-proof valve. One of the pole columns is connected with the cover plate by means of laser welding, and the plastic seal part and the ceramic insulating plate are combined to enable the other pole column to be connected with the cover plate to realize sealing and insulation. The invention further discloses a battery case with the battery cover plate and the lithium ion battery. The cover plate structure, the battery case and the lithium ion battery are simple in structure, high in tightness and not easy to twist.
Description
Technical field
The present invention relates to lithium ion battery, particularly relate to a kind of covering plate structure, battery case and battery of lithium ion battery.
Background technology
The range of application of current lithium ion battery more and more widely; From original battery of mobile phone, digital product battery to electric bicycle with the battery in field such as electric automobile, UPS, energy storage; Cell is increasing, and combination is used more and more, requires also increasingly high to stability of structure.When battery combination is used, use bolt structure to connect than being easier to.The cover plate of lithium-ion-power cell commonly used comprises cover plate, plastic seal, pole, insulating trip, explosion-protection equipment basically at present.The cover plate pole adopts double-screw bolt, and pole also plays the effect of fastening plastic seal sealing in conduction, in the process that outside batteries connects; Can make the pole twisting; Drive the sheet twisting of confluxing simultaneously, cause battery short circuit easily or open circuit, electrolyte reveals, thereby brings serious consequence.
Summary of the invention
In view of this, the objective of the invention is provides a kind of covering plate structure of lithium ion battery to the problem that exists in the above-mentioned background technology, solves the problem that pole externally may stressed twisting in the connection procedure.
For this reason; The invention provides a kind of covering plate structure of lithium ion battery; The covering plate structure of said lithium ion battery comprises cover plate, plastic seal, pole, ceramic insulation sheet, explosion-proof valve; A pole adopts the mode of laser welding to be connected with cover plate, and another pole adopts the mode of plastic seal and the combination of ceramic insulation sheet to be connected with cover plate and realizes sealing and insulation.
Preferably, the covering plate structure of said lithium ion battery, for aluminum-shell battery, positive terminal adopts the mode of laser welding to be connected with cover plate, and negative terminal adopts the mode of plastic seal and the combination of ceramic insulation sheet to be connected with cover plate and realizes sealing and insulation.
Preferably, the covering plate structure of said lithium ion battery, for the box hat battery, positive terminal adopts the mode of plastic seal and the combination of ceramic insulation sheet to be connected with cover plate and realizes sealing and insulation, and negative terminal adopts the mode of laser welding to be connected with cover plate.
Preferably, the covering plate structure of said lithium ion battery, for aluminum-shell battery, the positive terminal end face is circular shape, the positive terminal end surface thickness is higher than cover sheet thickness 0-0.5mm, and the circular hole onesize with the positive terminal end face arranged on the cover plate; The negative terminal end face is square, and nested on every side square ceramic insulation sheet closely cooperates between ceramic insulation sheet and negative terminal end face and cover plate; Cover plate is provided with step, and cover plate step upper plastic seal adopts injection molding way to add between negative terminal and the cover plate, is pressed with pressing plate above the plastic seal, and cover plate step bottom and ceramic insulation sheet closely cooperate.
Preferably, the covering plate structure of said lithium ion battery, for aluminum-shell battery, the material of cover plate is an aluminium, and the material of positive terminal is an aluminium, and the material of housing is an aluminium, and the material of negative terminal is a copper.
Preferably, the covering plate structure of said lithium ion battery, for aluminum-shell battery, the material of cover plate is an aluminium, and the material of positive terminal is an aluminium, and the material of housing is an aluminium, and the material of negative terminal is copper nickel plating.
Preferably, the covering plate structure of said lithium ion battery is for the box hat battery; The positive terminal end face is square, and nested on every side square ceramic insulation sheet closely cooperates between ceramic insulation sheet and positive terminal end face and cover plate; Cover plate is provided with step; Cover plate step upper plastic seal adopts injection molding way to add between positive terminal and the cover plate, is pressed with pressing plate above the plastic seal, and cover plate step bottom and ceramic insulation sheet closely cooperate; The negative terminal end face is circular, and the negative terminal end surface thickness is higher than cover sheet thickness 0-0.5mm, and the circular hole onesize with the negative terminal end face arranged on the cover plate.
Preferably, the covering plate structure of said lithium ion battery, for the box hat battery, the material of cover plate is a stainless steel, and the material of positive terminal is an aluminium, and the material of housing is a stainless steel, and the material of negative terminal is a stainless steel.
A kind of lithium ion battery shell comprises battery can and the battery cover board that seals its opening, and said battery cover board has above-mentioned any described battery cover board structure.
A kind of lithium ion battery with above-mentioned said lithium ion battery shell.
Visible by above technical scheme provided by the invention, the present invention has following technique effect: adopt the present invention simple in structure, good airproof performance is difficult for twisting.
Description of drawings
Fig. 1, Fig. 2, Fig. 3 are the structural representation of the covering plate structure aluminum-shell battery of a kind of lithium ion battery provided by the invention.
Fig. 4 is the sketch map of the covering plate structure aluminum-shell battery positive terminal of a kind of lithium ion battery provided by the invention.
Fig. 5, Fig. 6 are the sketch map of the covering plate structure aluminum-shell battery negative terminal of a kind of lithium ion battery provided by the invention.
Fig. 7, Fig. 8 are the structural representation of the covering plate structure box hat battery of a kind of lithium ion battery provided by the invention.
Fig. 9 is the sketch map of the covering plate structure box hat GND post of a kind of lithium ion battery provided by the invention.
Figure 10, Figure 11 are the sketch map of the covering plate structure box hat anode post of a kind of lithium ion battery provided by the invention.
Wherein, 1-pressing plate 2-plastic seal 3-ceramic insulation sheet 4-cover plate
5-negative terminal end face 6-positive terminal 7-negative terminal 8-explosion-proof valve
The complete all 10-positive terminal end faces of 9-laser welding
Embodiment
In order to make those skilled in the art person understand the present invention program better, the present invention is done further detailed description below in conjunction with accompanying drawing:
The covering plate structure of said lithium ion battery, for aluminum-shell battery: positive terminal 6 adopts the mode of laser welding to be connected with cover plate, sees Fig. 4; Positive terminal end face 10 is circular; Positive terminal end face 10 thickness are identical with cover plate 4 thickness, and positive terminal end face 10 thickness also can be higher than cover plate 4 thickness and be no more than 0.5mm, and the circular hole onesize with positive terminal end face 10 arranged on the cover plate 4; Positive terminal 6 is put into the circular hole of cover plate 4, and mode and cover plate 4 through laser welding link together.
The covering plate structure of said lithium ion battery; For aluminum-shell battery: negative terminal 7 adopts the mode of plastic seals 2 and 3 combinations of ceramic insulation sheet to be connected realization with cover plate 4 and seals and insulate; See Fig. 5 and Fig. 6, negative terminal end face 5 is square, nested on every side square ceramic insulation sheet 3; 4 of ceramic insulation sheet 3 and negative terminal end face 5 and cover plates closely cooperate, and prevent negative terminal 7 stressed twistings.Cover plate 4 is provided with step, and cover plate 4 step upper plastic seals 2 adopt injection molding way to add between negative terminal 7 and the cover plate 4, are pressed with pressing plate 1 above the plastic seal 2.Cover plate 4 step bottoms and ceramic insulation sheet 3 closely cooperate, and can be interference fit.
The covering plate structure of said lithium ion battery, for aluminum-shell battery: the material of cover plate 4 is an aluminium, and the material of positive terminal 6 is an aluminium, and the material of housing also is an aluminium, and the material of negative terminal 7 is copper or copper nickel plating.
The covering plate structure of said lithium ion battery, for aluminum-shell battery, whole assembling effect is seen Fig. 1, Fig. 2, Fig. 3.
The covering plate structure of said lithium ion battery, for the box hat battery: negative terminal 7 adopts the mode of laser welding to be connected with cover plate 4, sees Fig. 9; Negative terminal end face 5 is circular; Negative terminal end face 5 thickness are identical with cover plate 4 thickness, also can be higher than cover plate 4 thickness and be no more than 0.5mm, and the circular hole onesize with negative terminal end face 5 also arranged on the cover plate 4; Negative terminal 7 is put into the circular hole of cover plate 4, and mode and cover plate 4 through laser welding link together.
The covering plate structure of said lithium ion battery; For the box hat battery: positive terminal 6 adopts the mode of plastic seals 2 and 3 combinations of ceramic insulation sheet to be connected realization with cover plate 4 and seals and insulate; See Figure 10 and Figure 11, positive terminal end face 10 is square, nested on every side square ceramic insulation sheet 3; 4 of ceramic insulation sheet 3 and negative terminal end face 5 and cover plates closely cooperate, and prevent positive terminal 6 stressed twistings.Cover plate 4 is provided with step, and cover plate step upper plastic seal 2 adopts injection molding way to add between positive terminal 6 and the cover plate 4, is pressed with pressing plate 1 above the plastic seal 2.Cover plate 4 step bottoms and ceramic insulation sheet 3 closely cooperate, and can be interference fit.
The covering plate structure of said lithium ion battery, for the box hat battery, the material of cover plate is a stainless steel, and the material of positive terminal is an aluminium, and the material of housing also is a stainless steel, and the material of negative terminal is a stainless steel.
The covering plate structure of said lithium ion battery, for the box hat battery, whole assembling effect is seen Fig. 7, Fig. 8.
The covering plate structure of said lithium ion battery, simple in structure, good airproof performance is difficult for twisting.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (10)
1. the covering plate structure of a lithium ion battery; The covering plate structure of said lithium ion battery comprises cover plate, plastic seal, pole, ceramic insulation sheet, explosion-proof valve; It is characterized in that: a pole adopts the mode of laser welding to be connected with cover plate, and another pole adopts the mode of plastic seal and the combination of ceramic insulation sheet to be connected with cover plate and realizes sealing and insulation.
2. the covering plate structure of a kind of lithium ion battery according to claim 1; It is characterized in that: for aluminum-shell battery; Positive terminal adopts the mode of laser welding to be connected with cover plate, and negative terminal adopts the mode of plastic seal and the combination of ceramic insulation sheet to be connected with cover plate and realizes sealing and insulation.
3. the covering plate structure of a kind of lithium ion battery according to claim 1; It is characterized in that: for the box hat battery; Positive terminal adopts the mode of plastic seal and the combination of ceramic insulation sheet to be connected with cover plate and realizes sealing and insulation, and negative terminal adopts the mode of laser welding to be connected with cover plate.
4. the covering plate structure of a kind of lithium ion battery according to claim 2 is characterized in that: the positive terminal end face is circular, and the positive terminal end surface thickness is higher than cover sheet thickness 0-0.5mm, and the circular hole onesize with the positive terminal end face arranged on the cover plate; The negative terminal end face is square, and nested on every side square ceramic insulation sheet closely cooperates between ceramic insulation sheet and negative terminal end face and cover plate; Cover plate is provided with step, and cover plate step upper plastic seal adopts injection molding way to add between negative terminal and the cover plate, is pressed with pressing plate above the plastic seal, and cover plate step bottom and ceramic insulation sheet closely cooperate.
5. the covering plate structure of a kind of lithium ion battery according to claim 2, it is characterized in that: for aluminum-shell battery, the material of cover plate is an aluminium, and the material of positive terminal is an aluminium, and the material of housing is an aluminium, and the material of negative terminal is a copper.
6. the covering plate structure of a kind of lithium ion battery according to claim 2, it is characterized in that: for aluminum-shell battery, the material of cover plate is an aluminium, and the material of positive terminal is an aluminium, and the material of housing is an aluminium, the material of negative terminal is copper nickel plating.
7. the covering plate structure of a kind of lithium ion battery according to claim 3; It is characterized in that: the positive terminal end face is square, and nested on every side square ceramic insulation sheet closely cooperates between ceramic insulation sheet and positive terminal end face and cover plate; Cover plate is provided with step; Cover plate step upper plastic seal adopts injection molding way to add between positive terminal and the cover plate, is pressed with pressing plate above the plastic seal, and cover plate step bottom and ceramic insulation sheet closely cooperate; The negative terminal end face is circular, and the negative terminal end surface thickness is higher than cover sheet thickness 0-0.5mm, and the circular hole onesize with the negative terminal end face arranged on the cover plate.
8. the covering plate structure of a kind of lithium ion battery according to claim 3, it is characterized in that: the material of cover plate is a stainless steel, and the material of positive terminal is an aluminium, and the material of housing is a stainless steel, and the material of negative terminal is a stainless steel.
9. a lithium ion battery shell comprises battery can and the battery cover board that seals its opening, and it is characterized in that: said battery cover board has the described battery cover board structure of above-mentioned any claim.
10. lithium ion battery with the said battery case of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100466587A CN102637835A (en) | 2012-02-28 | 2012-02-28 | Cover plate structure and battery case for lithium ion battery and lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100466587A CN102637835A (en) | 2012-02-28 | 2012-02-28 | Cover plate structure and battery case for lithium ion battery and lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102637835A true CN102637835A (en) | 2012-08-15 |
Family
ID=46622147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100466587A Pending CN102637835A (en) | 2012-02-28 | 2012-02-28 | Cover plate structure and battery case for lithium ion battery and lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102637835A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103769780A (en) * | 2013-12-26 | 2014-05-07 | 合肥国轩高科动力能源股份公司 | Method for welding lithium ion battery stainless steel head cover and copper sheet |
| CN103915586A (en) * | 2014-04-04 | 2014-07-09 | 深圳市科达利实业股份有限公司 | Power battery cover plate and substrate thereof |
| CN104620420A (en) * | 2013-05-20 | 2015-05-13 | 株式会社Lg化学 | Connecting part for secondary battery and secondary battery comprising same |
| CN105244458A (en) * | 2015-11-05 | 2016-01-13 | 天津市捷威动力工业有限公司 | Aluminum shell secondary battery |
| CN107369789A (en) * | 2017-07-10 | 2017-11-21 | 林州朗坤科技有限公司 | Lithium battery cap board component and its manufacture method |
| WO2022077912A1 (en) * | 2020-10-13 | 2022-04-21 | 厦门海辰新能源科技有限公司 | Top cover assembly for power battery, and power battery |
| CN115117569A (en) * | 2022-07-25 | 2022-09-27 | 实联长宜淮安科技有限公司 | Square aluminum-shell lithium ion power battery with high energy density |
| WO2023061783A1 (en) * | 2021-10-15 | 2023-04-20 | Trumpf Laser- Und Systemtechnik Gmbh | Method for laser welding a workpiece, the method switching quickly between welding zones having different materials to be welded |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2870180Y (en) * | 2005-12-15 | 2007-02-14 | 中国电子科技集团公司第十八研究所 | Lithium ion cell sealing cover of preventing polar-column rotation |
| CN101964402A (en) * | 2010-09-30 | 2011-02-02 | 杭州海孚新能源科技有限公司 | Cylindrical lithium ion battery cathode nut cap |
| CN102074676A (en) * | 2010-12-31 | 2011-05-25 | 东莞新能源科技有限公司 | Power battery |
| CN102339958A (en) * | 2010-07-23 | 2012-02-01 | 松下能源(无锡)有限公司 | Seal plate assembly for battery and battery having the same |
| JP2012033339A (en) * | 2010-07-29 | 2012-02-16 | Daiwa Kasei Co Ltd | Large scale lithium ion battery for motor vehicle, dwelling house, and industrial apparatus |
-
2012
- 2012-02-28 CN CN2012100466587A patent/CN102637835A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2870180Y (en) * | 2005-12-15 | 2007-02-14 | 中国电子科技集团公司第十八研究所 | Lithium ion cell sealing cover of preventing polar-column rotation |
| CN102339958A (en) * | 2010-07-23 | 2012-02-01 | 松下能源(无锡)有限公司 | Seal plate assembly for battery and battery having the same |
| JP2012033339A (en) * | 2010-07-29 | 2012-02-16 | Daiwa Kasei Co Ltd | Large scale lithium ion battery for motor vehicle, dwelling house, and industrial apparatus |
| CN101964402A (en) * | 2010-09-30 | 2011-02-02 | 杭州海孚新能源科技有限公司 | Cylindrical lithium ion battery cathode nut cap |
| CN102074676A (en) * | 2010-12-31 | 2011-05-25 | 东莞新能源科技有限公司 | Power battery |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104620420A (en) * | 2013-05-20 | 2015-05-13 | 株式会社Lg化学 | Connecting part for secondary battery and secondary battery comprising same |
| CN104620420B (en) * | 2013-05-20 | 2017-09-19 | 株式会社Lg 化学 | Connecting element for secondary cell and the secondary cell including the connecting element |
| CN103769780A (en) * | 2013-12-26 | 2014-05-07 | 合肥国轩高科动力能源股份公司 | Method for welding lithium ion battery stainless steel head cover and copper sheet |
| CN103769780B (en) * | 2013-12-26 | 2016-05-11 | 合肥国轩高科动力能源有限公司 | Welding method for stainless steel top cover and copper sheet of lithium ion battery |
| CN103915586A (en) * | 2014-04-04 | 2014-07-09 | 深圳市科达利实业股份有限公司 | Power battery cover plate and substrate thereof |
| CN103915586B (en) * | 2014-04-04 | 2018-03-20 | 深圳市科达利实业股份有限公司 | Cover plate of power battery and its substrate |
| CN105244458A (en) * | 2015-11-05 | 2016-01-13 | 天津市捷威动力工业有限公司 | Aluminum shell secondary battery |
| CN105244458B (en) * | 2015-11-05 | 2019-05-14 | 天津市捷威动力工业有限公司 | A kind of aluminum hull secondary cell |
| CN107369789A (en) * | 2017-07-10 | 2017-11-21 | 林州朗坤科技有限公司 | Lithium battery cap board component and its manufacture method |
| WO2022077912A1 (en) * | 2020-10-13 | 2022-04-21 | 厦门海辰新能源科技有限公司 | Top cover assembly for power battery, and power battery |
| WO2023061783A1 (en) * | 2021-10-15 | 2023-04-20 | Trumpf Laser- Und Systemtechnik Gmbh | Method for laser welding a workpiece, the method switching quickly between welding zones having different materials to be welded |
| CN115117569A (en) * | 2022-07-25 | 2022-09-27 | 实联长宜淮安科技有限公司 | Square aluminum-shell lithium ion power battery with high energy density |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102637835A (en) | Cover plate structure and battery case for lithium ion battery and lithium ion battery | |
| CN2631052Y (en) | Lithium ion cell | |
| CN106207075B (en) | A kind of battery with overcurrent protection function | |
| CN202285251U (en) | Special-shaped lithium battery module | |
| CN102738522A (en) | Secondary battery | |
| CN108511660A (en) | Battery module | |
| CN203733874U (en) | Soft-packed battery pack and battery cell tab connecting structure | |
| JP2022505993A (en) | Battery housing assembly and battery with it | |
| CN108198966A (en) | A kind of battery cover board with novel pole sealing structure | |
| CN202651222U (en) | Cover plate assembly, single battery comprising cover plate assembly and battery pack | |
| CN102035020A (en) | Novel lager-capacity lithium ion battery | |
| CN101645520A (en) | Battery assembly method | |
| CN202585558U (en) | Power battery and top cover thereof | |
| CN204303929U (en) | Novel high-capacity soft package lithium battery group | |
| CN217606926U (en) | Secondary cell top cap and secondary cell | |
| CN204045642U (en) | A kind of high-capacity lithium battery cover plate | |
| CN103746084B (en) | Electrokinetic cell and power battery pack | |
| CN201536119U (en) | Novel lithium cell cover board | |
| CN2829107Y (en) | Leading-out terminal structure of lithium-ion battery | |
| CN108123179A (en) | Electric automobile power battery | |
| CN202145472U (en) | Multi-pole column battery cover cap for lithium ion battery | |
| CN202474114U (en) | Lithium ion storage battery for starting motorcycle | |
| CN201877491U (en) | Novel high-capacity lithium ion battery | |
| CN202333024U (en) | Cover plate assembly with reversed T-shaped pole group | |
| CN201975436U (en) | Battery sealing terminal and battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| 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: 20120815 |