CN205141087U - Lithium cell, anodal structure of lithium cell and welding equipment - Google Patents

Lithium cell, anodal structure of lithium cell and welding equipment Download PDF

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Publication number
CN205141087U
CN205141087U CN201520864592.1U CN201520864592U CN205141087U CN 205141087 U CN205141087 U CN 205141087U CN 201520864592 U CN201520864592 U CN 201520864592U CN 205141087 U CN205141087 U CN 205141087U
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China
Prior art keywords
section
lithium battery
collector
shield segment
lateral cross
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CN201520864592.1U
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Chinese (zh)
Inventor
范财政
赵悠曼
程建良
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Shenzhen Cham New Energy Co Ltd
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Shenzhen Cham New Energy Co Ltd
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Priority to CN201520864592.1U priority Critical patent/CN205141087U/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

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Abstract

The utility model provides an anodal structure of lithium cell, includes that the mass flow body, positive pole foresee utmost point ear, the definition is gone up to the mass flow body has that first set up the district and the second sets up the district, anodal material coating first set up the district on, utmost point ear includes to be connected for the linkage segment fixed with collecting fluid coupling, with one side of linkage segment and collects the first protection of fluidic section in order to prevent to isolate with collect fluid contact when coiling at the mass flow body, and is connected with the opposite side of linkage segment and personally experiences sth. Part of the body when coiling and collect fluid contact and isolate album fluidic second and protect section at the mass flow in order preventing, the linkage segment weld in the second sets up in the district. Borrow the setting by first protection section, second protection section, when the anodal structure of lithium cell was convoluteed, the both sides of utmost point ear can be protected the mass flow body and cut or separate the mass flow body after avoiding utmost point ear to convolute, improve the finished product qualifying rate of lithium cell. The utility model also provides a lithium cell and welding equipment.

Description

Lithium battery, lithium battery anode structure and welding equipment
Technical field
The utility model relates to the technical field of lithium battery, particularly relating to a kind of lithium battery anode structure, having the lithium battery of this lithium battery anode structure and the welding equipment for welding lithium battery anode structure.
Background technology
The anode structure of existing cylinder dynamic lithium battery is not yet formed by the lug on white area that stays that anode material is coated with on a current collector primarily of collector, coating anode material on a current collector and welding, wherein, this lug is rectangle laminated structure when being not yet wound, so, when the anode structure of this lithium battery is reeled, collector easily isolates by the edge of lug, causes the fraction defective of lithium battery larger.And current solution is mainly the collector adopted compared with high-tensile and fracture elongation, but the collector of this kind of structure increases the overall manufacturing cost of lithium battery, is unfavorable for enterprise marketing and sustainable development.
Therefore, be necessary to provide a kind of technological means to address the aforementioned drawbacks.
Utility model content
The purpose of this utility model is the defect overcoming prior art, provides a kind of lithium battery anode structure, the edge of lug can be made with the anode structure solving lithium battery of the prior art to isolate the problem of pole piece when reeling.
The utility model is achieved in that a kind of lithium battery anode structure, comprising:
Collector, on described collector, definition has the first setting area and the second setting area;
Anode material, described anode material is coated on described first setting area; And
Lug, described lug comprises linkage section in order to be connected and fixed with described collector, connects to prevent from contacting with described collector when described collector reels and isolate the first shield segment of described collector and connect to prevent from contacting with described collector when described collector reels with the opposite side of described linkage section and isolate the second shield segment of described collector with the side of described linkage section, and described linkage section is welded on described second setting area.
Particularly, the lateral cross section of described first shield segment is arc-shaped.
Preferably, the lateral cross section of described second shield segment is arc-shaped.
Preferably, the lateral cross section of described linkage section, described first shield segment and described second shield segment is arc-shaped.
Further, the arc radius of the arc radius of the lateral cross section of described linkage section, the arc radius of the lateral cross section of described first shield segment and the lateral cross section of described second shield segment is equal.
Further, the arc radius of the lateral cross section of described linkage section is r1, and the arc radius of the lateral cross section of described first shield segment is r2, and the arc radius of the lateral cross section of described second shield segment is r3,3mm≤r1=r2=r3≤6mm.
Particularly, described second setting area is positioned at the middle position of described collector.
Preferably, described second setting area is positioned at the position of 1/5,1/4 or 1/3 of the horizontal direction of described collector.
The technique effect of lithium battery anode structure of the present utility model is: by the setting of the first shield segment, the second shield segment, when lithium battery anode structure is wound, collector can be protected to hurt after avoiding lug to reel or to isolate collector in the both sides of lug, improves the finished product pass rate of lithium battery.
The utility model also provides a kind of lithium battery, has above-mentioned lithium battery anode structure.Because lithium battery has above-mentioned lithium battery anode structure, accordingly, the finished product pass rate of lithium battery can be improved, virtually greatly reduce the production cost of enterprise, and improve its competitiveness.
The utility model also provides a kind of welding equipment for welding above-mentioned lithium battery anode structure, comprise soldering tip and mould, described mould is provided with the forming cavity for described lug and described collector welding fabrication, and described soldering tip is provided with and coordinates to make described lug squeeze out the shape and structure of setting and make the protuberance of its sweat soldering on described collector with described forming cavity grafting.When welding, first the part of corresponding for collector the second setting area is placed in forming cavity, again lug is placed on the second setting area, then, soldering tip can be made to shift to the forming cavity of mould, and the protuberance of soldering tip is coordinated with forming cavity grafting, with the shape and structure making described lug squeeze out setting, afterwards, make soldering tip work, and this soldering tip can make lug by its shape and structure sweat soldering squeezed out on the second setting area of described collector, whole simple to operation, and effectively ensure that lug is with the shape of specifying welding on a current collector.
Accompanying drawing explanation
Fig. 1 is the front view of lithium battery anode structure of the present utility model;
Fig. 2 is the vertical view of lithium battery anode structure of the present utility model;
Fig. 3 be lithium battery anode structure of the present utility model tab welding on a current collector after structural representation;
Fig. 4 is the schematic diagram of another embodiment of lithium battery anode structure of the present utility model;
The schematic diagram of the welding equipment that Fig. 5 adopts for lithium battery anode structure of the present utility model.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
the embodiment of lithium battery anode structure:
Refer to Fig. 1 to Fig. 3, below the embodiment of lithium battery anode structure of the present utility model is set forth.
The lithium battery of the present embodiment is a class is negative material, the battery using non-aqueous electrolytic solution by lithium metal or lithium alloy.And lithium battery anode structure 100, comprise collector 10, anode material 20 and lug 30, below each parts of lithium battery anode structure 100 be described further:
Collector 10 is for collecting structure or the part of electric current, and in the present embodiment, it is the aluminium foil of laminated structure; Certainly, also can according to actual conditions, adopt Copper Foil to make collector 10, it also belongs to the protection category of the present embodiment; On this collector 10, definition has the first setting area 11 and the second setting area 12;
Anode material 20 is coated on the first setting area 11 of collector 10, for the reaction of generation positive pole, and Lithium-ion embeding during electric discharge, lithium ion deintercalation during charging;
Lug 30 is as collecting electric current, it is an aluminium strip, and make lug 30 for aluminium strip, be conducive to being welded to connect of identical material between lug 30 with collector 10, wherein, lug 30 comprises the linkage section 31 in order to be connected and fixed with collector 10, connect to prevent from contacting with collector 10 when collector 10 reels with the side of linkage section 31 and isolate the first shield segment 32 of collector 10, and connect to prevent from contacting with collector 10 when collector 10 reels with the opposite side of linkage section 31 and isolate the second shield segment 33 of collector 10, linkage section 31 is welded on the second setting area 12 of collector 10.
By the setting of the first shield segment 32, second shield segment 33, when lithium battery anode structure 100 is wound, the both sides of lug 30 can be protected collector 10 and hurt or isolate collector 10 after avoiding lug 30 to reel, and improve the finished product pass rate of lithium battery.
Refer to Fig. 2 and Fig. 3, as another preferred embodiment of lithium battery anode structure 100 of the present utility model, the lateral cross section of the first shield segment 32 is arc-shaped, and is that arc-shaped is simple except structure, is also convenient to processing sets up; Certainly, the lateral cross section of the first shield segment 32 can be other tortuous shape structure, and it also belongs to the protection category of the present embodiment.
Referring again to Fig. 2 and Fig. 3, as another preferred embodiment of lithium battery anode structure 100 of the present utility model, the lateral cross section of the second shield segment 33 is arc-shaped, and is that arc-shaped is simple except structure, is also convenient to processing sets up; Certainly, the lateral cross section of the second shield segment 33 can be other tortuous shape structure, and it also belongs to the protection category of the present embodiment.
Please continue to refer to Fig. 2 and Fig. 3, as another preferred embodiment of lithium battery anode structure 100 of the present utility model, the lateral cross section of linkage section 31, first shield segment 32 and the second shield segment 33 is arc-shaped, except simplifying the structure of lug 30, is also convenient to processing sets up; Certainly, the lateral cross section of linkage section 31, first shield segment 32 and the second shield segment 33 can be other tortuous shape structure simultaneously, and it also belongs to the protection category of the present embodiment.
In order to be convenient to processing sets up further, the arc radius of the arc radius of the lateral cross section of linkage section 31, the arc radius of the lateral cross section of the first shield segment 32 and the lateral cross section of the second shield segment 33 is equal.
Preferably, the arc radius of the lateral cross section of linkage section 31 is r1, the arc radius of the lateral cross section of the first shield segment 32 is r2, the arc radius of the lateral cross section of the second shield segment 33 is r3,3mm≤r1=r2=r3≤6mm, and make 3mm≤r1=r2=r3≤6mm, and except making linkage section 31, first shield segment 32 and the second shield segment 33 produce a desired effect, can also effective controlled working cost.
Refer to Fig. 1, as another preferred embodiment of lithium battery anode structure 100 of the present utility model, the second setting area 12 is positioned at the middle position of the horizontal direction of collector 10, and this kind of vibrational power flow, can the better low internal resistance of ground resistance.
Refer to Fig. 4, as another preferred embodiment of lithium battery anode structure 100 of the present utility model, the second setting area 12 is positioned at the position of 1/5,1/4 or 1/3 of the horizontal direction of collector 10, and this kind of vibrational power flow, capacity can be increased preferably.
the embodiment of lithium battery:
Refer to Fig. 1 to Fig. 4, below the embodiment of lithium battery of the present utility model is set forth.
The lithium battery of the present embodiment, comprises above-mentioned lithium battery anode structure 100, negative pole and barrier film.Because lithium battery has above-mentioned lithium battery anode structure 100, accordingly, the finished product pass rate of lithium battery can be improved, virtually greatly reduce the production cost of enterprise, and improve its competitiveness.
the embodiment of welding equipment:
Refer to Fig. 5, and composition graphs 1 to Fig. 4, below the embodiment of welding equipment of the present utility model is set forth.
The welding equipment 200 for welding above-mentioned lithium battery anode structure 100 of the present embodiment, it is device for ultrasonic welding, comprise soldering tip 201 and mould 202, mould 202 is provided with the forming cavity 2021 for lug 30 and collector 10 welding fabrication, and soldering tip 201 is provided with and coordinates to make lug 30 squeeze out the shape and structure of setting and make the protuberance 2011 of its sweat soldering on the second setting area 12 of collector 10 with forming cavity 2021 grafting.
When welding, first the part of corresponding for collector 10 second setting area 12 is placed in forming cavity 2021, again lug 30 is placed on the second setting area 12, then, soldering tip 201 can be made to shift to the forming cavity 2021 of mould 202, and the protuberance 2011 of soldering tip 201 is coordinated with forming cavity 2021 grafting, with the shape and structure making lug 30 squeeze out setting, that is, lug 30 is made to comprise linkage section 31, first shield segment 32 and the second shield segment 33; Afterwards, soldering tip 201 is worked, and this soldering tip 201 can make lug 30 by its shape and structure sweat soldering squeezed out on the second setting area 12 of collector 10, whole simple to operation, and effectively ensure that lug 30 is welded on the second setting area 12 of collector 10 with the shape of specifying.
Wherein, preferably, because linkage section 31, first shield segment 32 of lug 30 and the lateral cross section of the second shield segment 33 are arc-shaped, side by side, the arc radius of the lateral cross section of linkage section 31 is r1, the arc radius of the lateral cross section of the first shield segment 32 is r2, the arc radius of the lateral cross section of the second shield segment 33 is r3,3mm≤r1=r2=r3≤6mm, and make 3mm≤r1=r2=r3≤6mm, accordingly, the arc radius of the protuberance 2011 of soldering tip 201 is 3-6mm, accordingly, the arc radius of the forming cavity 2021 of mould 202 is 3-6mm.
The foregoing is only the utility model preferred embodiment; its structure is not limited to the above-mentioned shape enumerated; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.

Claims (10)

1. a lithium battery anode structure, is characterized in that, comprising:
Collector, on described collector, definition has the first setting area and the second setting area;
Anode material, described anode material is coated on described first setting area; And
Lug, described lug comprises linkage section in order to be connected and fixed with described collector, connects to prevent from contacting with described collector when described collector reels and isolate the first shield segment of described collector and connect to prevent from contacting with described collector when described collector reels with the opposite side of described linkage section and isolate the second shield segment of described collector with the side of described linkage section, and described linkage section is welded on described second setting area.
2. lithium battery anode structure as claimed in claim 1, is characterized in that: the lateral cross section of described first shield segment is arc-shaped.
3. lithium battery anode structure as claimed in claim 1, is characterized in that: the lateral cross section of described second shield segment is arc-shaped.
4. lithium battery anode structure as claimed in claim 1, is characterized in that: the lateral cross section of described linkage section, described first shield segment and described second shield segment is arc-shaped.
5. lithium battery anode structure as claimed in claim 4, is characterized in that: the arc radius of the arc radius of the lateral cross section of described linkage section, the arc radius of the lateral cross section of described first shield segment and the lateral cross section of described second shield segment is equal.
6. lithium battery anode structure as claimed in claim 5, it is characterized in that: the arc radius of the lateral cross section of described linkage section is r1, the arc radius of the lateral cross section of described first shield segment is r2, the arc radius of the lateral cross section of described second shield segment is r3,3mm≤r1=r2=r3≤6mm.
7. the lithium battery anode structure as described in any one of claim 1-6, is characterized in that: described second setting area is positioned at the middle position of described collector.
8. the lithium battery anode structure as described in any one of claim 1-6, is characterized in that: described second setting area is positioned at the position of 1/5,1/4 or 1/3 of the horizontal direction of described collector.
9. a lithium battery, is characterized in that: have the lithium battery anode structure described in any one of claim 1-8.
10. one kind for welding the welding equipment of the lithium battery anode structure described in any one of claim 1-8, comprise soldering tip and mould, it is characterized in that: described mould is provided with the forming cavity for described lug and described collector welding fabrication, and described soldering tip is provided with and coordinates to make described lug squeeze out the shape and structure of setting and make the protuberance of its sweat soldering on described collector with described forming cavity grafting.
CN201520864592.1U 2015-11-02 2015-11-02 Lithium cell, anodal structure of lithium cell and welding equipment Active CN205141087U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520864592.1U CN205141087U (en) 2015-11-02 2015-11-02 Lithium cell, anodal structure of lithium cell and welding equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520864592.1U CN205141087U (en) 2015-11-02 2015-11-02 Lithium cell, anodal structure of lithium cell and welding equipment

Publications (1)

Publication Number Publication Date
CN205141087U true CN205141087U (en) 2016-04-06

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Country Status (1)

Country Link
CN (1) CN205141087U (en)

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