CN208078036U - Serondary lithium battery - Google Patents

Serondary lithium battery Download PDF

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Publication number
CN208078036U
CN208078036U CN201820730406.9U CN201820730406U CN208078036U CN 208078036 U CN208078036 U CN 208078036U CN 201820730406 U CN201820730406 U CN 201820730406U CN 208078036 U CN208078036 U CN 208078036U
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CN
China
Prior art keywords
lug
pole
connection sheet
rim
battery core
Prior art date
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Active
Application number
CN201820730406.9U
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Chinese (zh)
Inventor
王海文
帅鸿元
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.)
Jiangxi Huaxin Rui Automobile Energy Technology Co Ltd
Original Assignee
Jiangxi Huaxin Rui Automobile Energy Technology Co Ltd
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Application filed by Jiangxi Huaxin Rui Automobile Energy Technology Co Ltd filed Critical Jiangxi Huaxin Rui Automobile Energy Technology Co Ltd
Priority to CN201820730406.9U priority Critical patent/CN208078036U/en
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Publication of CN208078036U publication Critical patent/CN208078036U/en
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    • 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
    • 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
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

Abstract

The utility model discloses a kind of serondary lithium battery, including cap assembly, battery core and Insulating frame, cap assembly includes the coping plate for opening up liquid injection hole, first pole, second pole and Explosion-proof valve, battery core includes the first lug and the second lug being connect with the first pole, the third lug and the 4th lug being connect with the second pole, Insulating frame is set between cap assembly and battery core, Insulating frame towards battery core direction tool there are four independent insulation boss chamber, the outer rim of first boss chamber is by the first lug, second lug and the first pole surround to form independent chamber along short transverse, the outer rim of second boss chamber is by third lug, 4th lug and the second pole surround to form independent chamber along short transverse, the outer rim of third boss chamber separates liquid injection hole, the outer rim of 4th boss chamber separates Explosion-proof valve.The utility model separates two groups of poles and lug, liquid injection hole and Explosion-proof valve, is in relatively independent insulating space, improves security performance.

Description

Serondary lithium battery
Technical field
The utility model belongs to the technical field of lithium battery, more particularly to a kind of serondary lithium battery.
Background technology
Great-capacity power battery (or energy-storage battery), the conductive section of the amount of capacity of the battery often lug of limited battery Joining Technology is handled between area, and lug and lug in process of production, because the characteristics of existing equipment, throat thickness Cannot be blocked up, which can solve the problems, such as this, and positive and negative lug uses Double-pole lug mode, ensure that design is desired In the case that conductive section area is larger, the welding thickness of welding surface is reduced, the throat thickness for avoiding limitation to equipment can not be real The problem of existing production technology.
Utility model content
The purpose of this utility model is to provide a kind of serondary lithium batteries, pass through four independent boss chambers of Insulating frame Two groups of poles and lug, liquid injection hole and Explosion-proof valve are separated, it are made to be in relatively independent insulating space by room respectively, Improve security performance.
The purpose of this utility model can be achieved through the following technical solutions:
Serondary lithium battery, including cap assembly, battery core and Insulating frame, the cap assembly include the top for opening up liquid injection hole Cover plate, the first pole, the second pole and Explosion-proof valve, the battery core include the first lug being connect with the first pole and the second pole Ear, the third lug being connect with the second pole and the 4th lug, the Insulating frame are set between cap assembly and battery core, absolutely Edge frame towards battery core direction tool there are four independent insulation boss chamber, the outer rim of first boss chamber by the first lug, Second lug and the first pole surround to form independent chamber along short transverse, the outer rim of second boss chamber by third lug, 4th lug and the second pole surround to form independent chamber along short transverse, the outer rim of third boss chamber by liquid injection hole every It opens, the outer rim of the 4th boss chamber separates Explosion-proof valve.
It is separated using retainer between the sub-body and top lug of the battery core.
It is separated using insulating film between the outer rim and shell of the battery core.
First lug and the second lug are contacted by the bottom of the first connection sheet and the first pole, the third lug It is contacted by the bottom of the second connection sheet and the second pole with the 4th lug.
There is first connecting portion on first lug, be located at the first connection sheet along the downside of short transverse, have first connecting portion It is fixedly connected with the first connection sheet;First connection sheet is fixedly connected with the first lug, the second lug;First lug, the second lug Make bending processing;Insulation gummed paper is pasted in bending.
Between first connection sheet and the first lug, the second lug be laser welding structure, second connection sheet with It is laser welding structure between third lug, the 4th lug.
It is ultrasonic welding structure, second connection sheet between first connection sheet and the first lug, the second lug It is ultrasonic welding structure between third lug, the 4th lug.
The beneficial effects of the utility model:The utility model separates two groups of poles and lug, liquid injection hole and Explosion-proof valve, It is in relatively independent insulating space, improves security performance, meanwhile, liquid injection hole uses two step structures, facilitates automatic The production of change controls, and improves production excellence rate and production stability.
Description of the drawings
In order to facilitate the understanding of those skilled in the art, the utility model will be further described below with reference to the accompanying drawings.
Fig. 1 is the positive structure schematic of the utility model;
Fig. 2 is the side structure schematic diagram of the utility model;
Fig. 3 is the positive structure schematic of the utility model cap assembly;
Fig. 4 is the structure schematic diagram of the utility model cap assembly;
Fig. 5 is the upper ends Fig. 2 enlarged structure schematic diagram.
Specific implementation mode
With reference to specific embodiment, the utility model is expanded on further.It should be understood that these embodiments are merely to illustrate this Utility model rather than limitation the scope of the utility model.In addition, it should also be understood that, in the content for having read the utility model instruction Later, those skilled in the art can make various changes or modifications the utility model, and such equivalent forms equally fall within this Shen It please the appended claims limited range.
A kind of serondary lithium battery as depicted in figs. 1 and 2, including cap assembly 1 (Fig. 3, Fig. 4), battery core 2 and Insulating frame 3。
Cap assembly 1 includes coping plate 11, the first pole 12, the second pole 13 and the Explosion-proof valve for opening up liquid injection hole 111 14.Battery core 2 includes the first lug 21 being connect with the first pole 12 and the second lug 22, the third pole being connect with the second pole 13 Ear 23 and the 4th lug 24.Insulating frame 3 is set between cap assembly 1 and battery core 2, sub-body and the top pole of battery core 2 It is separated using retainer 4 between ear, is separated using insulating film 5 between the outer rim and shell of battery core 2.
Insulating frame 3 towards battery core 2 direction tool there are four independent insulation boss chamber, first boss chamber 31 outside Edge surrounds the first lug 21, the second lug 22 and the first pole 12 to form independent chamber along short transverse, second boss chamber The outer rim of room 32 surrounds third lug 23, the 4th lug 24 and the second pole 13 to form independent chamber along short transverse, the The outer rim of three boss chambers 33 separates liquid injection hole 111, and the outer rim of the 4th boss chamber 34 separates Explosion-proof valve 14.
First lug 21 and the second lug 22 are contacted by the bottom of the first connection sheet 15 and the first pole 12, the first connection Ultrasonic bonding is used between piece 15 and the first lug 21, the second lug 22.Third lug 23 and the 4th lug 24 pass through second The bottom of connection sheet 16 and the second pole 13 is contacted, using super between the second connection sheet 16 and third lug 23, the 4th lug 24 Sound wave welds.
There is first connecting portion on first pole 12, be located at the first connection sheet along the upside of short transverse, and first connects Portion is fixedly connected with the first connection sheet, i.e., metal alloying connects;First connection sheet is fixedly connected with the first lug, the second lug; First lug, the second lug make bending processing;Lug pastes insulation gummed paper 25 with connection sheet fixed connection place, as shown in Figure 5;
The serondary lithium battery is by 3 four independent boss chambers of Insulating frame, respectively by two groups of poles and lug, fluid injection Hole 111 and Explosion-proof valve 14 separate, and so that it is in relatively independent insulating space, improve security performance.
Above content is only to the utility model structure example and explanation, the technology people of affiliated the art Member makes various modifications or additions to the described embodiments or substitutes by a similar method, without departing from reality With novel structure or beyond the scope defined by this claim, all should belong to the protection range of the utility model.

Claims (7)

1. serondary lithium battery, including cap assembly (1), battery core (2) and Insulating frame (3), the cap assembly (1) includes opening up Coping plate (11), the first pole (12), the second pole (13) and the Explosion-proof valve (14) of liquid injection hole (111), it is characterised in that:Institute Battery core (2) is stated to include the first lug (21) connecting with the first pole (12) and the second lug (22), with the second pole (13) connect The third lug (23) and the 4th lug (24) connect;The Insulating frame (3) is set between cap assembly (1) and battery core (2), Insulating frame (3) towards battery core (2) direction tool there are four independent insulation boss chamber, the outer rim of first boss chamber (31) It surrounds the first lug (21), the second lug (22) and the first pole (12) to form independent chamber along short transverse, second is convex Third lug (23), the 4th lug (24) are surrounded with the second pole (13) along short transverse and to be formed solely by the outer rim of platform chamber (32) The outer rim of vertical chamber, third boss chamber (33) separates liquid injection hole (111), and the outer rim of the 4th boss chamber (34) will be explosion-proof Valve (14) separates.
2. serondary lithium battery according to claim 1, it is characterised in that:The sub-body of the battery core (2) and top pole It is separated using retainer (4) between ear.
3. serondary lithium battery according to claim 1, it is characterised in that:It is adopted between the outer rim and shell of the battery core (2) It is separated with insulating film (5).
4. serondary lithium battery according to claim 1, it is characterised in that:First lug (21) and the second lug (22) It is contacted by the bottom of the first connection sheet (15) and the first pole (12), the third lug (23) and the 4th lug (24) pass through Second connection sheet (16) and the bottom of the second pole (13) are contacted.
5. serondary lithium battery according to claim 4, it is characterised in that:There is first connecting portion on first pole, be located at First connection sheet is along the upside of short transverse, and first connecting portion is fixedly connected with the first connection sheet, i.e., metal alloying connects;The A connecting piece is fixedly connected with the first lug, the second lug;First lug, the second lug make bending processing;Lug and connection sheet Paste insulation gummed paper (25) in fixed connection place.
6. a kind of serondary lithium battery according to claim 4, it is characterised in that:First connection sheet (15) and the first pole It is laser welding structure, second connection sheet (16) and third lug (23), quadrupole between ear (21), the second lug (22) It is laser welding structure between ear (24).
7. a kind of serondary lithium battery according to claim 4, it is characterised in that:First connection sheet (15) and the first pole It is ultrasonic welding structure, second connection sheet (16) and third lug (23), the 4th between ear (21), the second lug (22) It is ultrasonic welding structure between lug (24).
CN201820730406.9U 2018-05-11 2018-05-11 Serondary lithium battery Active CN208078036U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820730406.9U CN208078036U (en) 2018-05-11 2018-05-11 Serondary lithium battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820730406.9U CN208078036U (en) 2018-05-11 2018-05-11 Serondary lithium battery

Publications (1)

Publication Number Publication Date
CN208078036U true CN208078036U (en) 2018-11-09

Family

ID=64045976

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820730406.9U Active CN208078036U (en) 2018-05-11 2018-05-11 Serondary lithium battery

Country Status (1)

Country Link
CN (1) CN208078036U (en)

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