CN201997890U - Tooling for welding multi-core flexible package lithium ion battery cell external-connection lug - Google Patents

Tooling for welding multi-core flexible package lithium ion battery cell external-connection lug Download PDF

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Publication number
CN201997890U
CN201997890U CN201020698203XU CN201020698203U CN201997890U CN 201997890 U CN201997890 U CN 201997890U CN 201020698203X U CN201020698203X U CN 201020698203XU CN 201020698203 U CN201020698203 U CN 201020698203U CN 201997890 U CN201997890 U CN 201997890U
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China
Prior art keywords
groove
external
lug
electric core
welding
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Expired - Fee Related
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CN201020698203XU
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Chinese (zh)
Inventor
刘瑞瑞
李爱良
董明
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NINGBO EAST LITHIUM CO Ltd
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NINGBO EAST LITHIUM CO Ltd
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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

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Abstract

The utility model discloses a tooling for welding a multi-core flexible package lithium ion battery cell external-connection lug, which comprises a body (1), wherein the body (1) is provided with a cell slot (1.1) for containing a multi-core flexible package lithium ion battery cell (2), and external-connection lug slots (1.2) for containing the external-connection lug and an intrinsic lug of the cell (2), and the cell slot (1.1) is communicated with the external-connection lug slots (1.2). When the tooling for welding the multi-core flexible package lithium ion battery cell external-connection lug welds the multi-core flexible package lithium ion battery cell external-connection lug, the phenomena of insufficient welding, uneven welding positioning of the intrinsic lug and the inclined welding of the external-connection lug can not be caused.

Description

The external lug welding tooling of multicore flexible packing lithium ion battery electricity core
Technical field
The utility model relates to a kind of mould, relates to the external lug welding tooling of a kind of multicore flexible packing lithium ion battery electricity core or rather.
Background technology
The single relatively core flexible packing lithium ion battery of multicore flexible packing lithium ion battery, internal resistance is less, and is simple around the volume mode, can avoid pole piece long and cause the phenomenon that wanders off, thereby battery performance is protected.Though there are many advantages in the multicore flexible packing lithium ion battery, equally also there is shortcoming in it.Because the multicore flexible packing lithium ion battery of prior art is in the process of making, need with a plurality of electric cores carry lug and external lug welds, be a plurality of electric cores carry the welding of positive pole ear and external positive pole ear, a plurality of electric cores carry the welding of negative lug and external negative lug, and when welding external lug at present general all modes by the external lug of tweezers clamping with external lug with carry lug and weld, this kind welding manner causes rosin joint easily, carry the uneven and external lug in lug welding location and welded askew phenomenon, rosin joint then can influence the capacity of lithium ion battery, resistance and multiplying power; Carry that lug welding location is uneven then can damage the plastic-aluminum shell when lithium ion battery encapsulates, cause short circuit easily; External lug is welded askew, and the alice of generation can contact with the pole piece of electric in-core and cause short circuit, and all factors all can influence the performance of battery.
The utility model content
The technical problems to be solved in the utility model is to provide a kind of and can not cause rosin joint when the external lug of welding multicore flexible packing lithium ion battery electricity core, carry the external lug welding tooling of multicore flexible packing lithium ion battery electricity core that the uneven and external lug in lug welding location is welded askew phenomenon.
Technical solution of the present utility model is, a kind of external lug welding tooling of multicore flexible packing lithium ion battery electricity core with following structure is provided, comprise body, described body is provided with electric core groove that is used for ccontaining multicore flexible packing lithium ion battery electricity core and the external lug groove that carries lug that is used for ccontaining external lug and described electric core, and described electric core groove communicates with described external lug groove.
After adopting above structure, the external lug welding tooling of the utility model multicore flexible packing lithium ion battery electricity core compared with prior art has the following advantages:
Because the body of the external lug welding tooling of the utility model multicore flexible packing lithium ion battery electricity core is provided with electric core groove and is used for the external lug groove that carries lug of ccontaining external lug and described electric core, described electric core groove communicates with described external lug groove, when multicore flexible packing lithium ion battery electricity core welds external lug, the lug that carries that described electric core is placed in the described electric core groove and should the electricity core is placed in the described external lug groove, described external lug is placed in the described external lug groove, this moment, external lug can be stacked together with the lug that carries of described electric core near the end of described electric core groove, then with described electric core carry lug and described external lug welds together.By the external lug welding tooling welding of the utility model multicore flexible packing lithium ion battery electricity core, because carry lug and the described external lug of described electric core are placed in the external lug groove and weld, during welding, described electric core carry lug and external lug can not be shifted, therefore, carry and can not occur rosin joint between lug and the external lug, carry the uneven and external lug in lug location and welded askew phenomenon, thereby also can not influence capacity, resistance and the multiplying power of lithium ion battery, can not cause short circuit, to the just guarantee to some extent of performance of lithium ion battery yet.
As a kind of improvement of the present utility model, described external lug groove near the end of described electric core groove be provided be used for ccontaining described electric core carry lug and external lug and the described welding groove that carries the end that lug stacks.Since described external lug groove near the end of described electric core groove be provided be used for ccontaining described electric core carry lug and external lug and the described welding groove that carries the end that lug stacks, during welding, just can as long as in described welding groove, weld, make the welding region that carries lug and external lug clearer and more definite, thus can be better to carrying lug and external lug welds.
As another kind of improvement the of the present utility model, described external lug groove comprises external positive pole ear groove and external negative lug groove; Described welding groove comprises positive pole ear welding groove and negative lug welding groove, and described positive pole ear welding groove is positioned at the end of described external positive pole ear groove, and described negative lug welding groove is positioned at the end of described external negative lug groove.The width of described external positive pole ear groove and the width of external positive pole ear match, and the degree of depth of described external positive pole ear groove is 0.2~1 times of the degree of depth of described electric core groove; The width of described external negative lug groove and the width of external negative lug match, and the degree of depth of described external negative lug groove is 0.2~1 times of the degree of depth of described electric core groove.Because the width of described external positive pole ear groove and the width of external positive pole ear match, the width of described external negative lug groove and the width of external negative lug match, during welding, can locate better external positive pole ear and external negative lug, can keep the spacing unanimity between external positive pole ear of lithium ion battery and the external negative lug.
Also have a kind of improvement as of the present utility model, the length of described positive pole ear welding groove and width and described length and the width that carries positive pole ear match, and the degree of depth of described positive pole ear welding groove is consistent with the degree of depth of described electric core groove; The length of described negative lug welding groove and width and described length and the width that carries negative lug match, and the degree of depth of described negative lug welding groove is consistent with the degree of depth of described electric core groove.Like this, during welding, can locate better carrying positive pole ear and carrying negative lug.
Also have a kind of improvement as of the present utility model, the length and the width of the length of described electric core groove and width and described electric core match, and the degree of depth of described electric core groove is 0.5~1.5 times of thickness of described electric core.Like this, can position described electric core better.
Description of drawings
Fig. 1 is the structural representation of the external lug welding tooling of the utility model multicore flexible packing lithium ion battery electricity core.
Fig. 2 is the structural representation that is placed with electric core in the external lug welding tooling of the utility model multicore flexible packing lithium ion battery electricity core.
Fig. 3 is the structural representation that is placed with electric core and external lug in the external lug welding tooling of the utility model multicore flexible packing lithium ion battery electricity core.
Shown in the figure: 1, body, 1.1, electric core groove, 1.2, external lug groove, 1.2.1, external positive pole ear groove, 1.2.2, external negative lug groove, 1.3, welding groove, 1.3.1, positive pole ear welding groove, 1.3.2, the negative lug welding groove, 2, electric core, 3, carry positive pole ear, 4, carry negative lug, 5, external positive pole ear, 6, external negative lug.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please join Fig. 1, Fig. 2 and shown in Figure 3, the external lug welding tooling of the utility model multicore flexible packing lithium ion battery electricity core comprises body 1, the body that described body 1 can be made for brass, the body that can make for steel plate, the also body that can make for plastics, the also body that can make for this different materials combination of brass, steel plate and plastics.Described body 1 is provided with electric core groove 1.1 that is used for ccontaining multicore flexible packing lithium ion battery electricity core and the external lug groove 1.2 that carries lug that is used for ccontaining external lug and described electric core 2, and described electric core groove 1.1 communicates with described external lug groove 1.2.Described electric core 2 is square electric core.Described external lug groove 1.2 near the end of described electric core grooves 1.1 be provided be used for ccontaining described electric core 2 carry lug and external lug and the described welding groove 1.3 that carries the end that lug stacks.Described external lug groove 1.2 comprises external positive pole ear groove 1.2.1 and external negative lug groove 1.2.2.Described welding groove 1.3 comprises positive pole ear welding groove 1.3.1 and negative lug welding groove 1.3.2, described positive pole ear welding groove 1.3.1 is positioned at the end of described external positive pole ear groove 1.2.1, and described negative lug welding groove 1.3.2 is positioned at the end of described external negative lug groove 1.2.2.
The length and the width of the length of described electric core groove 1.1 and width and described electric core 2 match, promptly be placed between the madial wall of the sidewall of the electric core 2 in the electric core groove 1.1 and described electric core groove 1.1 and have small gap, described electric core groove 1.1 can position described electric core 2.The degree of depth of described electric core groove 1.1 is 0.5~1.5 times of thickness of described electric core 2, and in this specific embodiment, the degree of depth of described electric core groove 1.1 equates with the thickness of described electric core 2.
The width of described external positive pole ear groove 1.2.1 and the width of external positive pole ear 5 match, promptly be placed between the madial wall of the sidewall of the external positive pole ear 5 in the external positive pole ear groove 1.2.1 and described external positive pole ear groove 1.2.1 and have small gap, the location that described external positive pole ear groove 1.2.1 can carry out on the width described external positive pole ear 5; 0.2~1 times of the degree of depth of the described electric core groove 1.1 of the degree of depth of described external positive pole ear groove 1.2.1, in this specific embodiment, the degree of depth of described external positive pole ear groove 1.2.1 is 0.5 times of the degree of depth of described electric core groove 1.1.The width of described external negative lug groove 1.2.2 and the width of external negative lug 6 match, the width of described external negative lug groove 1.2.2 is corresponding with the width of external negative lug 6, promptly be placed between the madial wall of the sidewall of the external negative lug 6 in the external negative lug groove 1.2.2 and described external negative lug groove 1.2.2 and have small gap, the location that described external negative lug groove 1.2.2 can carry out on the width described external negative lug 6; The degree of depth of described external negative lug groove 1.2.2 is 0.2~1 times of the degree of depth of described electric core groove 1.1, and in this specific embodiment, the degree of depth of described external negative lug groove 1.2.2 is 0.5 times of the degree of depth of described electric core groove 1.1.
The length of described positive pole ear welding groove 1.3.1 and width and described length and the width that carries positive pole ear 3 match, promptly be placed between the madial wall of sidewall that carries positive pole ear 3 in the positive pole ear welding groove 1.3.1 and described positive pole ear welding groove 1.3.1 and have small gap, described positive pole ear welding groove 1.3.1 can position the described positive pole ear 3 that carries; The degree of depth of described positive pole ear welding groove 1.3.1 is consistent with the degree of depth of described electric core groove 1.1.The length of described negative lug welding groove 1.3.2 and width and described length and the width that carries negative lug 4 match, promptly be placed between the madial wall of sidewall that carries negative lug 4 in the negative lug welding groove 1.3.2 and described negative lug welding groove 1.3.2 and have small gap, described negative lug welding groove 1.3.2 can position the described negative lug 4 that carries; The degree of depth of described negative lug welding groove 1.3.2 is consistent with the degree of depth of described electric core groove 1.1.
During use, the positive pole ear 3 that carries of at first the electric core 2 of multicore flexible packing lithium ion battery being put into described electric core groove 1.1 and described electric core 2 stretches at described positive pole ear welding groove 1.3.1, and the negative lug 4 that carries of described electric core 2 stretches in described negative lug welding groove 1.3.2; Then described external positive pole ear 5 is put into the external positive pole ear 5 of described external positive pole ear groove 1.2.1 and this and stretched at described positive pole ear welding groove 1.3.1 near the end of described electric core grooves 1.1 and stack with the positive pole ear 3 that carries of positive pole ear welding groove 1.3.1, the end that described external negative lug 6 is put into described external negative lug groove 1.2.2 and this external negative lug 6 close described electric core grooves 1.1 is stretched at described negative lug welding groove 1.3.2 and is stacked with the negative lug 4 that carries of negative lug welding groove 1.3.2; In positive pole ear welding groove 1.3.1 and negative lug welding groove 1.3.2, weld at last, the described positive pole ear 3 that carries is welded together with external positive pole ear 5, the described negative lug 4 that carries is welded together with external negative lug 6.

Claims (10)

1. the external lug welding tooling of multicore flexible packing lithium ion battery electricity core, it is characterized in that: comprise body (1), described body (1) is provided with the electric core groove (1.1) that is used for ccontaining multicore flexible packing lithium ion battery electricity core (2) and is used for ccontaining external lug and the external lug groove (1.2) that carries lug of described electric core (2), and described electric core groove (1.1) communicates with described external lug groove (1.2).
2. the external lug welding tooling of multicore flexible packing lithium ion battery according to claim 1 electricity core is characterized in that: described external lug groove (1.2) near the end of described electric core groove (1.1) be provided be used for ccontaining described electric core (2) carry lug and external lug and the described welding groove (1.3) that carries the end that lug stacks.
3. the external lug welding tooling of multicore flexible packing lithium ion battery electricity core according to claim 2, it is characterized in that: described external lug groove (1.2) comprises external positive pole ear groove (1.2.1) and external negative lug groove (1.2.2); Described welding groove (1.3) comprises positive pole ear welding groove (1.3.1) and negative lug welding groove (1.3.2), described positive pole ear welding groove (1.3.1) is positioned at the end of described external positive pole ear groove (1.2.1), and described negative lug welding groove (1.3.2) is positioned at the end of described external negative lug groove (1.2.2).
4. the external lug welding tooling of multicore flexible packing lithium ion battery electricity core according to claim 3, it is characterized in that: the length and the width of the length of described electric core groove (1.1) and width and described electric core (2) match, and the degree of depth of described electric core groove (1.1) is 0.5~1.5 times of thickness of described electric core (2).
5. the external lug welding tooling of multicore flexible packing lithium ion battery electricity core according to claim 4, it is characterized in that: the width of the width of described external positive pole ear groove (1.2.1) and external positive pole ear (5) matches, and the degree of depth of described external positive pole ear groove (1.2.1) is 0.2~1 times of the degree of depth of described electric core groove (1.1); The width of the width of described external negative lug groove (1.2.2) and external negative lug (6) matches, and the degree of depth of described external negative lug groove (1.2.2) is 0.2~1 times of the degree of depth of described electric core groove (1.1).
6. the external lug welding tooling of multicore flexible packing lithium ion battery electricity core according to claim 5, it is characterized in that: the length of described positive pole ear welding groove (1.3.1) and width and described length and the width that carries positive pole ear (3) match, and the degree of depth of described positive pole ear welding groove (1.3.1) is consistent with the degree of depth of described electric core groove (1.1); The length of described negative lug welding groove (1.3.2) and width and described length and the width that carries negative lug (4) match, and the degree of depth of described negative lug welding groove (1.3.2) is consistent with the degree of depth of described electric core groove (1.1).
7. the external lug welding tooling of multicore flexible packing lithium ion battery electricity core according to claim 1, it is characterized in that: described electric core (2) is square electric core.
8. the external lug welding tooling of multicore flexible packing lithium ion battery electricity core according to claim 1 is characterized in that: the body that described body (1) is made for brass.
9. the external lug welding tooling of multicore flexible packing lithium ion battery electricity core according to claim 1 is characterized in that: the body that described body (1) is made for steel plate.
10. the external lug welding tooling of multicore flexible packing lithium ion battery electricity core according to claim 1 is characterized in that: the body that described body (1) is made for plastics.
CN201020698203XU 2010-12-29 2010-12-29 Tooling for welding multi-core flexible package lithium ion battery cell external-connection lug Expired - Fee Related CN201997890U (en)

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CN201020698203XU CN201997890U (en) 2010-12-29 2010-12-29 Tooling for welding multi-core flexible package lithium ion battery cell external-connection lug

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105720297A (en) * 2016-04-29 2016-06-29 深圳市力为锂能科技有限公司 Lithium ion cell and preparation method thereof
CN109483129A (en) * 2018-12-24 2019-03-19 北方奥钛纳米技术有限公司 Welding auxiliary equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105720297A (en) * 2016-04-29 2016-06-29 深圳市力为锂能科技有限公司 Lithium ion cell and preparation method thereof
CN105720297B (en) * 2016-04-29 2018-03-27 深圳市力为锂能科技有限公司 A kind of lithium ion battery and preparation method thereof
CN109483129A (en) * 2018-12-24 2019-03-19 北方奥钛纳米技术有限公司 Welding auxiliary equipment

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Granted publication date: 20111005

Termination date: 20121229