CN201490241U - Lithium cell cover plate assembly and lithium cell using same - Google Patents

Lithium cell cover plate assembly and lithium cell using same Download PDF

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Publication number
CN201490241U
CN201490241U CN2009201643351U CN200920164335U CN201490241U CN 201490241 U CN201490241 U CN 201490241U CN 2009201643351 U CN2009201643351 U CN 2009201643351U CN 200920164335 U CN200920164335 U CN 200920164335U CN 201490241 U CN201490241 U CN 201490241U
Authority
CN
China
Prior art keywords
top board
positive terminal
negative terminal
cover plate
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.)
Expired - Fee Related
Application number
CN2009201643351U
Other languages
Chinese (zh)
Inventor
曲大伟
王民波
安建
曾强
唐平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Jinhe Power Battery Science And Technology Co ltd
Original Assignee
Shenzhen Jinhe Power Battery Science And Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shenzhen Jinhe Power Battery Science And Technology Co ltd filed Critical Shenzhen Jinhe Power Battery Science And Technology Co ltd
Priority to CN2009201643351U priority Critical patent/CN201490241U/en
Application granted granted Critical
Publication of CN201490241U publication Critical patent/CN201490241U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

The utility model belongs to the technical field of lithium cells and provides a lithium cell cover plate assembly and a lithium cell using the same. The lithium cell cover plate assembly comprises a top plate, positive terminals, negative terminals and an insulation sheet fixed on the surface of the inner side of the top plate, wherein the top plate and the insulation sheet are respectively provided with through holes fixing the positive terminals and the negative terminals; grooves are arranged on the positive terminals and the negative terminals; insulation sealing strips are arranged in the grooves; and the grooves and the insulation sealing strips pass through the through holes of the top plate and the insulation sheet and are fixed in the through holes. The positive terminals and negative terminals of the lithium cell cover plate assembly are in an integral structure, and therefore, the internal resistance of the cell is small; cell tabs and the positive terminals and the negative terminals at the inner side of the cell shell can be easily welded, and the positive terminals and the negative terminals at the outer side of the shell can be easily connected, thereby facilitating the series connection and the parallel connection of battery packs; in combining plates, the tabs in a set collar are bent into a U shape, which has higher space use ratio than the condition that the tabs are bent into an S shape.

Description

Lithium battery cap board component and use the lithium battery of this assembly
Technical field
The utility model relates to lithium battery cover plate, relates in particular to a kind of lithium battery cap board component and uses the lithium battery of this assembly.
Background technology
With box hat or aluminum hull is in the lithium battery of structure, structure of cover plate directly influences battery welding operation mode and every battery performance, so suitable cover plate and electric core, housing collocation must be arranged, electrokinetic cell particularly, the selection of cover plate MS especially is important, covering plate structure directly influences the difficulty or ease and the effect of battery pack connection in series-parallel welding and electric core and cover plate welding, and requires the insulation effect of cover plate to get well, and cover plate and electric core short circuit phenomenon can not occur.
The cover plate that adopts in the lithium dynamical battery industry is generally four poles+leader tape structure or two pole double-screw bolt formula structures now, cell polar ear and cover plate welding palintrope are converted into " S " type plywood, the enclosure interior space availability ratio reduces, four poles+leader tape cover plate pole is that the rivet compacting is connected with the leader tape employing, cause the internal resistance of cell bigger, and the welding operation inconvenience, anodal aluminium matter leader tape generally bends 3-5 time and will rupture, and produces to be unfavorable for maintenance; The cover plate space hold of two pole double-screw bolt formula structures is bigger, is unfavorable for that battery capacity promotes.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of cover plate assembly and lithium battery thereof that makes things convenient for battery pack connection in series-parallel welding and electric core and cover plate welding is provided
The technical scheme that realizes above purpose is:
A kind of lithium battery cap board component, comprise top board, positive terminal, negative terminal and be fixed on the insulating trip of top board inner surface, on top board and insulating trip, be equipped with the fixedly through hole of positive terminal and negative terminal, described positive terminal and negative terminal are provided with groove, be provided with the insulated enclosure sheet in the groove, this groove part and insulated enclosure sheet pass the through hole of described top board and insulating trip and are fixed in wherein.
Described positive terminal and the negative terminal size on the top board length direction is bigger than the size on the top plate thickness direction.
Described positive terminal and negative terminal at the width of battery case Outboard Sections less than width at the battery case inside part.
On the other hand, the utility model also provides a kind of lithium battery:
This lithium battery, comprise shell, electric core, spacer ring and cover plate assembly, wherein cover plate assembly comprises top board, positive terminal, negative terminal and is fixed on the insulating trip of top board inner surface, on top board and insulating trip, be equipped with the fixedly through hole of positive terminal and negative terminal, it is characterized in that: described positive terminal and negative terminal are provided with groove, be provided with the insulated enclosure sheet in the groove, this groove part and insulated enclosure sheet pass the through hole of described top board and insulating trip and are fixed in wherein.
Described positive terminal and the negative terminal size on the top board length direction is bigger than the size on the top plate thickness direction.
Described positive terminal and negative terminal at the width of battery case Outboard Sections less than width at the battery case inside part.
Lithium battery cap board component of the present utility model and battery thereof have following beneficial effect: the positive and negative electrode terminal is an overall structure, and the internal resistance of cell is little; The positive and negative electrode terminal of cell polar ear and battery case inboard welds easily, thereby the positive and negative electrode terminal in the shell outside also connects easily and makes things convenient for the battery pack serial or parallel connection; During plywood, the lug in the spacer ring is bent into " U " shape, the serpentine space availability ratio is big than being bent into.
Description of drawings
Fig. 1 is the front elevation according to the lithium battery cap board component of the utility model preferred embodiment.
Fig. 2 is the back view according to the lithium battery cap board component of the utility model preferred embodiment.
Fig. 3 is the front elevation of installing according to the lithium battery cap board component of the utility model preferred embodiment.
Fig. 4 is the back view of installing according to the lithium battery cap board component of the utility model preferred embodiment.
Fig. 5 is the cutaway view according to a list lithium battery of the utility model preferred embodiment.
Fig. 6 is the installation diagram according to the lithium battery group of the utility model preferred embodiment.
Embodiment
Referring to Fig. 1, Fig. 2 and Fig. 4, a kind of lithium battery cap board component 40 comprises top board 41, positive terminal 42, anodal insulated enclosure sheet 43, negative terminal 44, negative pole insulated enclosure sheet 45 and insulating trip 46.Insulating trip 46 is promptly inboard near a side of inside battery at top board, top board 41 overlaps each other with insulating trip 46 and fixedlys connected, top board 41 central authorities are provided with explosionproof hole 411, and one jiao of top board 41 is provided with liquid injection hole 412, and the corresponding position of insulating trip 46 is provided with explosionproof hole 461 and liquid injection hole 462.Corresponding position on top board 41 and insulating trip 46 respectively is provided with the through hole that is used for fixing positive terminal 42 and negative terminal 44, the lateral wall of positive terminal 42 and negative terminal 44 is provided with a groove, and anodal insulated enclosure sheet 43 and negative pole insulated enclosure sheet 45 are promptly clogged in above-mentioned groove.Anodal insulated enclosure sheet 43 of the quilt of positive terminal 42 and negative terminal 44 and negative pole insulated enclosure sheet 45 hold the through hole that partly passes on top board 41 and the insulating trip 46, and are fixed therein.
Referring to Fig. 3-Fig. 5, a kind of lithium battery comprises shell 10, electric core 20, spacer ring 30 and cover plate assembly 40.During assembling, the anode ear 21 of electric core 20 passes the lug groove of spacer ring 30, and anode ear 21 bending stacks are welded at the battery inside part with positive terminal 42 again, and negative electrode lug adopts identical operations.After welding finishes, cover plate assembly 40 lateral buckling in battery is carried out the plywood operation, lug is bent into " U " shape.Insulating trip 46 can effectively prevent cell polar ear and top board 41 short circuits.
Referring to Fig. 6, when being assembled into battery pack, the positive and negative electrode terminal is connected with nickel strap 50, the connection in series-parallel that can carry out battery connects, and can adopt ultrasonic bonding, and weldering seal 16 width 3.5mm can suitably increase weldering printing amount as required.
Wherein, positive terminal 42 and negative terminal 44 size on top board 41 length directions is bigger than the size on the thickness direction of top board 41, and promptly positive terminal 42 and negative terminal 44 are strip, and its length direction is consistent with top board 41.Like this, can make battery pole ear and positive and negative electrode terminal be easy to welding, also help saving the space of inside battery.
Wherein, positive terminal 42 and negative terminal 44 are littler than its width at the battery inside part at the width of battery case part, make things convenient for being connected of positive terminal 42 and negative terminal 44 and battery pole ear, have saved the material of anode and cathode terminals again.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; should be understood that; for the person of ordinary skill of the art; every any modification of within spirit of the present utility model and principle, being done, be equal to and replace or improvement etc., all should be included within the protection range of the present utility model.

Claims (6)

1. lithium battery cap board component, comprise top board, positive terminal, negative terminal and be fixed on the insulating trip of top board inner surface, on top board and insulating trip, be equipped with the fixedly through hole of positive terminal and negative terminal, it is characterized in that: described positive terminal and negative terminal are provided with groove, be provided with the insulated enclosure sheet in the groove, this groove part and insulated enclosure sheet pass the through hole of described top board and insulating trip and are fixed in wherein.
2. lithium battery cap board component according to claim 1 is characterized in that: described positive terminal and the negative terminal size on the top board length direction is bigger than the size on the top plate thickness direction.
3. lithium battery cap board component according to claim 1 and 2 is characterized in that: described positive terminal and negative terminal at the width of battery case Outboard Sections less than width at the battery case inside part.
4. lithium battery, comprise shell, electric core, spacer ring and cover plate assembly, wherein cover plate assembly comprises top board, positive terminal, negative terminal and is fixed on the insulating trip of top board inner surface, on top board and insulating trip, be equipped with the fixedly through hole of positive terminal and negative terminal, it is characterized in that: described positive terminal and negative terminal are provided with groove, be provided with the insulated enclosure sheet in the groove, this groove part and insulated enclosure sheet pass the through hole of described top board and insulating trip and are fixed in wherein.
5. lithium battery according to claim 4 is characterized in that: described positive terminal and the negative terminal size on the top board length direction is bigger than the size on the top plate thickness direction.
6. according to claim 4 or 5 described lithium batteries, it is characterized in that: described positive terminal and negative terminal at the width of battery case Outboard Sections less than width at the battery case inside part.
CN2009201643351U 2009-06-30 2009-06-30 Lithium cell cover plate assembly and lithium cell using same Expired - Fee Related CN201490241U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009201643351U CN201490241U (en) 2009-06-30 2009-06-30 Lithium cell cover plate assembly and lithium cell using same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009201643351U CN201490241U (en) 2009-06-30 2009-06-30 Lithium cell cover plate assembly and lithium cell using same

Publications (1)

Publication Number Publication Date
CN201490241U true CN201490241U (en) 2010-05-26

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Country Status (1)

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CN (1) CN201490241U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101853926A (en) * 2010-06-22 2010-10-06 深圳市豪鹏科技有限公司 Battery steel shell and insulating method and battery thereof
CN102420305A (en) * 2011-12-02 2012-04-18 苏州冠硕新能源有限公司 Battery
CN104409768A (en) * 2014-11-25 2015-03-11 东莞新能源科技有限公司 Lithium battery
JP2019029226A (en) * 2017-07-31 2019-02-21 リチウム エナジー アンド パワー ゲゼルシャフト ミット ベシュレンクテル ハフッング ウント コンパニー コマンディトゲゼルシャフトLithium Energy and Power GmbH & Co. KG Method of manufacturing power storage element

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101853926A (en) * 2010-06-22 2010-10-06 深圳市豪鹏科技有限公司 Battery steel shell and insulating method and battery thereof
CN102420305A (en) * 2011-12-02 2012-04-18 苏州冠硕新能源有限公司 Battery
CN104409768A (en) * 2014-11-25 2015-03-11 东莞新能源科技有限公司 Lithium battery
CN104409768B (en) * 2014-11-25 2017-03-08 东莞新能源科技有限公司 Lithium battery
JP2019029226A (en) * 2017-07-31 2019-02-21 リチウム エナジー アンド パワー ゲゼルシャフト ミット ベシュレンクテル ハフッング ウント コンパニー コマンディトゲゼルシャフトLithium Energy and Power GmbH & Co. KG Method of manufacturing power storage element

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100526

Termination date: 20150630

EXPY Termination of patent right or utility model