CN208819999U - A kind of secondary battery construction - Google Patents

A kind of secondary battery construction Download PDF

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Publication number
CN208819999U
CN208819999U CN201821517150.XU CN201821517150U CN208819999U CN 208819999 U CN208819999 U CN 208819999U CN 201821517150 U CN201821517150 U CN 201821517150U CN 208819999 U CN208819999 U CN 208819999U
Authority
CN
China
Prior art keywords
positive
top cover
cathode
tab
main body
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
CN201821517150.XU
Other languages
Chinese (zh)
Inventor
王海文
黄恳
郑涛
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
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 Jiangxi Huaxin Rui Automobile Energy Technology Co Ltd filed Critical Jiangxi Huaxin Rui Automobile Energy Technology Co Ltd
Priority to CN201821517150.XU priority Critical patent/CN208819999U/en
Application granted granted Critical
Publication of CN208819999U publication Critical patent/CN208819999U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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 secondary battery construction, including battery core main body and positive strap and negative straps that two end side of battery core main body is arranged in, the both ends of battery core main body are equipped with positive top cover and cathode top cover simultaneously, positive strap and negative straps are located at the middle part of positive top cover and cathode top cover, and positive strap is located at positive top cover with negative straps and is connected with cathode top cover.The shell and top cover of the utility model battery are easier to weld, promote an excellent rate of welding, and realize battery core lightweight, improve the energy density of battery core, simultaneously because the shell used is made of acrylic resin and glass fibre, shell is non-conductive, and the security performance of battery is greatly promoted.

Description

A kind of secondary battery construction
Technical field
The utility model belongs to cell manufacturing techniques field, is related to a kind of secondary battery construction.
Background technique
Secondary cell generally comprises battery core, shell, top cover and ceiling hold, and wherein in shell, top cover and shell fill battery core With together, the tab of battery core and the pole of top cover are connected.Ceiling hold is fixed on top cover, effect be by battery core and top cover every It opens, avoids battery core and other metal external contacts of top cover.Top cover and case weld use laser welding, when top cover or metal-back Laser welding is easy to produce burst point when body is not clean, can arrange to reduce many factories of burst point probability all personnel wipe top cover with Shell, waste of manpower increase cost.
Utility model content
The purpose of this utility model is to provide a kind of secondary battery construction, the shell and top cover of the battery are easier to weld It connects, promotes an excellent rate of welding, and realize battery core lightweight, improve the energy density of battery core, simultaneously because what is used is outer Shell is made of acrylic resin and glass fibre, and shell is non-conductive, and the security performance of battery is greatly promoted.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of secondary battery construction, including battery core main body and positive strap and cathode that two end side of battery core main body is arranged in Connection sheet, while the both ends of battery core main body are equipped with positive top cover and cathode top cover, positive strap and negative straps point Not Wei Yu positive top cover and cathode top cover middle part, and positive strap and negative straps are located at positive top cover Part is connected with cathode top cover;
Battery core main body includes main body and the first tab and the second tab for being fixed on main body both ends of the surface, cathode top cover Including cathode coping plate and the negative pole being fixed at cathode coping plate centre of surface, the welding of negative straps one end is solid It is scheduled on the second tab, the other end is fixed on cathode coping plate, while negative straps are welded as a whole with negative pole;It is negative Integrally connected is fixed with cathode ceiling hold to the bottom surface both side of pole coping plate respectively, while the surface side of cathode coping plate is equipped with and prevents Quick-fried valve, the other side are equipped with liquid injection port;
Positive top cover includes positive coping plate and the Positive Poles that are fixed at positive coping plate centre of surface, just One end of pole connection sheet is weldingly fixed on the first tab, and the other end is fixed on positive coping plate, at the same positive strap with Positive Poles are welded as a whole.
Further, battery core main body is mounted in main casing, while the top of main casing is equipped with case top lid.
Further, the bottom face side of explosion-proof valve is buckled equipped with cathode, and liquid injection port includes that openings and setting are penetrating through The outer rim of mouth bottom end, the outer rim of liquid injection port separate the second tab with openings.
Further, integrally connected is fixed with positive ceiling hold, while anode top to the bottom surface both side of positive coping plate respectively The bottom surface both side of cover plate is equipped with positive buckle.
Further, the both ends of the first tab and the second tab are pasted with insulation gummed paper, the first tab and the second tab Both ends separated by insulation gummed paper with main body.
The utility model has the beneficial effects that
The utility model uses ultrasonic welding process and laser welding process, and speed of welding is fast, high-efficient, welding beauty It sees, is not in wire drawing situation, while energy conservation and environmental protection, radiate and discharge fume without ventilation device;High efficiency, low cost, facilitates realization Automatic operation, good welding performance, very securely, solder joint beauty is, it can be achieved that seamless welding, waterproof and dampproof air-tightness are strong.
The shell and top cover of the utility model battery are easier to weld, and promote an excellent rate of welding, and realize battery core Lightweight, improves the energy density of battery core, simultaneously because the shell used is made of acrylic resin and glass fibre, shell It is non-conductive, the security performance of battery is greatly promoted.
Shell and cap assembly is made using acrylic resin and glass fibre in the utility model, on the one hand can be more Good prevents battery core internal short-circuit, and material made of another aspect acrylic resin and glass fibre will not be generated in welding process Burst point.
Detailed description of the invention
The utility model will be further described below with reference to the accompanying drawings.
Fig. 1 is the utility model secondary cell cross-sectional view;
Fig. 2 is the utility model secondary cell installation pre-structure schematic diagram;
Fig. 3 is secondary battery construction schematic diagram;
Fig. 4 is cathode top cover structural schematic diagram;
Fig. 5 is cathode top cover structural schematic diagram;
Fig. 6 is positive top cover structural schematic diagram;
Fig. 7 is positive top cover structural schematic diagram;
Fig. 8 is cathode top cover partial sectional view.
Specific embodiment
Fig. 1-8 is please referred to, is described in detail in conjunction with following examples:
A kind of secondary battery construction, as shown in Figure 1-3, including battery core main body 1 and 1 liang of end side of battery core main body is set Positive strap 2 and negative straps 3, while the both ends of battery core main body 1 are equipped with positive top cover 4 and cathode top cover 5, just Pole connection sheet 2 and negative straps 3 are located at the middle part of positive top cover 4 and cathode top cover 5, and positive strap 2 Positive top cover 4 is located at negative straps 3 to be connected with cathode top cover 5;Battery core main body 1 is mounted in main casing 6, The top of main casing 6 is equipped with case top lid 7 simultaneously;
As shown in Figure 4 and Figure 5, battery core main body 1 includes main body 11 and the first tab for being fixed on 11 both ends of the surface of main body 12 and second tab 13, cathode top cover 5 include cathode coping plate 51 and be fixed at 51 centre of surface of cathode coping plate Negative pole 52,3 one end of negative straps is weldingly fixed on the second tab 13, and the other end is fixed on cathode coping plate 51 On, while negative straps 3 are welded as a whole with negative pole 52;The bottom surface both side difference integrally connected of cathode coping plate 51 is solid Surely there is cathode ceiling hold 53, while the surface side of cathode coping plate 51 is equipped with explosion-proof valve 54, the other side is equipped with liquid injection port 55, prevents The bottom face side of quick-fried valve 54 is equipped with cathode buckle 56, and liquid injection port 55 includes openings 551 and is arranged in 551 bottom end of openings Outer rim 552, the outer rim 552 of liquid injection port 55 separates the second tab 13 with openings 551;
As shown in Figure 6 and Figure 7, positive top cover 4 includes positive coping plate 41 and is fixed on positive 41 table of coping plate Positive Poles 42 at the center of face, one end of positive strap 2 are weldingly fixed on the first tab 12, and the other end is fixed on just On pole coping plate 41, while positive strap 2 is welded as a whole with Positive Poles 42;The bottom surface both side of positive coping plate 41 is distinguished Integrally connected is fixed with positive ceiling hold 43, while the bottom surface both side of positive coping plate 51 is equipped with anode buckle 44;
As shown in figure 8, the both ends of the first tab 12 and the second tab 13 are pasted with insulation gummed paper 14,12 He of the first tab The both ends of second tab 13 are separated by the gummed paper 14 that insulate with main body 11, the hair for preventing the first tab 12 and the second tab 13 from generating Thorn is contacted with main body 11, and then generates internal short-circuit;
Positive top cover 4, cathode top cover 5, explosion-proof valve 54, Positive Poles 42 and negative pole 52 and 6 and of main casing Case top lid 7 is made of acrylic resin and glass fibre;
The assembling process of the secondary cell is as follows:
The first step is connected the first tab 12 with positive strap 2 using ultrasonic bonding mode, while by super Sound wave welding manner connects the second tab 13 with negative straps 3;
Negative straps 3 and negative pole 52 are welded as a whole by second step using Laser Welding, and by negative straps 3 are fixed on cathode coping plate 51;Positive strap 2 and Positive Poles 42 are welded as a whole using Laser Welding simultaneously, simultaneously Positive strap 2 is fixed on positive coping plate 41;
The battery core main body 1 being welded is laid flat in main casing 6, then case top lid 7 and main casing 6 is assembled by third step Together;
4th step assembles the lamina tecti of positive and negative anodes with shell, in an assembling process, in the first tab 12 and second Insulation gummed paper 14 is pasted on the outside of 13 both ends bending part of tab, insulation gummed paper 14 can separate the outside of bending part and main body 11, The burr that can be generated to avoid the first tab 12 and the second tab 13 is contacted with main body 11, and then generates internal short-circuit.
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 is substituted in a similar manner, 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 (5)

1. a kind of secondary battery construction, which is characterized in that including battery core main body (1) and be arranged in (1) two end side of battery core main body Positive strap (2) and negative straps (3), while the both ends of battery core main body (1) are equipped with positive top cover (4) and cathode top cover Part (5), positive strap (2) and negative straps (3) are located at the middle part of positive top cover (4) and cathode top cover (5), And positive strap (2) is located at positive top cover (4) with negative straps (3) and is connected with cathode top cover (5);
Battery core main body (1) includes main body (11) and the first tab (12) and the second tab for being fixed on main body (11) both ends of the surface (13), cathode top cover (5) includes cathode coping plate (51) and is fixed on negative at cathode coping plate (51) centre of surface Pole pole (52), negative straps (3) one end are weldingly fixed on the second tab (13), and the other end is fixed on cathode coping plate (51) on, while negative straps (3) are welded as a whole with negative pole (52);The bottom surface both side of cathode coping plate (51) is distinguished Integrally connected is fixed with cathode ceiling hold (53), while the surface side of cathode coping plate (51) is equipped with explosion-proof valve (54), another Side is equipped with liquid injection port (55);
Positive top cover (4) includes the anode that anode coping plate (41) and is fixed at positive coping plate (41) centre of surface Pole (42), one end of positive strap (2) are weldingly fixed on the first tab (12), and the other end is fixed on positive coping plate (41) on, while positive strap (2) is welded as a whole with Positive Poles (42).
2. a kind of secondary battery construction according to claim 1, which is characterized in that battery core main body (1) is mounted on main casing (6) in, while the top of main casing (6) is equipped with case top lid (7).
3. a kind of secondary battery construction according to claim 1, which is characterized in that the bottom face side of explosion-proof valve (54) is set There is cathode to buckle (56), liquid injection port (55) includes the outer rim (552) of openings (551) and setting in openings (551) bottom end, The outer rim (552) of liquid injection port (55) separates the second tab (13) and openings (551).
4. a kind of secondary battery construction according to claim 1, which is characterized in that the bottom surface both side of positive coping plate (41) Integrally connected is fixed with positive ceiling hold (43) respectively, while the bottom surface both side of positive coping plate (51) is equipped with positive buckle (44)。
5. a kind of secondary battery construction according to claim 1, which is characterized in that the first tab (12) and the second tab (13) both ends, which are pasted with, insulate gummed paper (14), and the both ends of the first tab (12) and the second tab (13) pass through insulation gummed paper (14) it is separated with main body (11).
CN201821517150.XU 2018-09-17 2018-09-17 A kind of secondary battery construction Expired - Fee Related CN208819999U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821517150.XU CN208819999U (en) 2018-09-17 2018-09-17 A kind of secondary battery construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821517150.XU CN208819999U (en) 2018-09-17 2018-09-17 A kind of secondary battery construction

Publications (1)

Publication Number Publication Date
CN208819999U true CN208819999U (en) 2019-05-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821517150.XU Expired - Fee Related CN208819999U (en) 2018-09-17 2018-09-17 A kind of secondary battery construction

Country Status (1)

Country Link
CN (1) CN208819999U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113782808A (en) * 2021-08-09 2021-12-10 宁波科锂特电池配件有限公司 Lithium battery
WO2023274054A1 (en) * 2021-06-29 2023-01-05 比亚迪股份有限公司 Battery housing, battery, and electronic device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023274054A1 (en) * 2021-06-29 2023-01-05 比亚迪股份有限公司 Battery housing, battery, and electronic device
CN113782808A (en) * 2021-08-09 2021-12-10 宁波科锂特电池配件有限公司 Lithium battery

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20190503

Termination date: 20210917

CF01 Termination of patent right due to non-payment of annual fee