CN209544535U - A kind of L-type stack type lithium ion battery - Google Patents
A kind of L-type stack type lithium ion battery Download PDFInfo
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- CN209544535U CN209544535U CN201920639077.1U CN201920639077U CN209544535U CN 209544535 U CN209544535 U CN 209544535U CN 201920639077 U CN201920639077 U CN 201920639077U CN 209544535 U CN209544535 U CN 209544535U
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model discloses a kind of L-type stack type lithium ion batteries, it includes L-type aluminum-plastic composite membrane shell, it is equipped with and the consistent battery of its cavity shape in aluminum-plastic composite membrane shell, electrolyte is packaged in aluminum-plastic composite membrane shell, battery is by L-type positive plate, diaphragm paper and the stacking of L-type negative electrode tab collapse, anode ear is respectively equipped on each L-type positive plate, negative electrode lug is respectively equipped in each L-type negative electrode tab, battery anode ear is formed by welding in each anode ear parallel connection, battery negative electrode lug is formed by welding in each negative electrode lug parallel connection, the aluminium pole ears for stretching out aluminum-plastic composite membrane shell are equipped on battery anode ear, the copper nickel plating tab for stretching out aluminum-plastic composite membrane shell is equipped on battery negative electrode lug.The battery of the utility model is collapsed by L-type positive plate, diaphragm paper, the stacking of L-type negative electrode tab, and battery anode ear and battery negative electrode lug pass through welding fabrication in parallel, reduce the internal resistance of battery, the appearance of volume energy density and L-type with higher.
Description
Technical field
The utility model relates to a kind of lithium ion secondary battery, in particular to a kind of L-type stack type lithium ion battery.
Background technique
In recent years, for lithium ion secondary battery as carrier power supply, application is more and more extensive, close to the volume energy of battery
Degree, mass energy density, other performance requirements are also higher and higher, while can irregularly be tied according to the inside of application product
Structure carries out corresponding adaptation, and there are two types of (such as: L-type) currently known lithium ion secondary battery universal architecture shapes: it is rectangular and
It is cylindrical
The battery of conventional shape structure, structure is single, and pole piece rule, corner area is small, is easy to mass production and pole piece
The control of burrs on edges, but since single battery regular texture is single, it is desirable to special-shaped (such as: L-type) is formed mostly by N monomer electricity
Pond carries out in parallel or series, and in parallel or series, disadvantage is as follows for this N single battery:
1, volume energy density is low, and due to being N battery parallel connection, every battery need to be individually encapsulated, and wastes aluminum plastic film
Space, battery parallel connection need to be routed, and need reserved wiring space, waste structure space；
2, safety is poor, and battery is had certain difference, (imitated by wooden barrel by equipment, the influence of manufacture craft, every battery
The influence answered) battery is connected after, due to battery capacity, voltage deposits difference, be easy to cause and overcharge, over-discharge, cause safety
Hidden danger；
3, at high cost, due to series-parallel, applying protective sheet is needed, (increasing expense).
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides a kind of volume energy height, is not necessarily in series and parallel, being capable of multiplying power
The L-type laminated structure lithium ion secondary battery of charge and discharge.
The technical solution that the utility model solves the above problems is:
A kind of L-type stack type lithium ion battery, it includes L-type aluminum-plastic composite membrane shell, is equipped in aluminum-plastic composite membrane shell
With the consistent battery of its cavity shape, be packaged with electrolyte in aluminum-plastic composite membrane shell, the battery by L-type positive plate,
Diaphragm paper and the stacking of L-type negative electrode tab collapse, and anode ear is respectively equipped on each L-type positive plate, is distinguished in each L-type negative electrode tab
Equipped with negative electrode lug, battery anode ear is formed by welding in each anode ear parallel connection, and battery negative electrode lug is formed by welding in each negative electrode lug parallel connection,
It is equipped with the aluminium pole ears for stretching out aluminum-plastic composite membrane shell on battery anode ear, it is multiple that stretching plastic-aluminum is equipped on battery negative electrode lug
Close the copper nickel plating tab of putamina body.
Further, in the junction of battery anode ear and aluminium pole ears, and in battery negative electrode lug and copper nickel plating tab
Junction post high tempreture tape.
Further, the L-type positive plate and the L-type rotation angle position of L-type negative electrode tab are equipped with inside rounded corner R.
Further, battery is fixed in aluminum-plastic composite membrane shell by gummed paper.
Further, gummed paper is posted at the ending that collapses of battery.
The battery of the utility model is collapsed by L-type positive plate, diaphragm paper, the stacking of L-type negative electrode tab, battery anode
Ear and battery negative electrode lug reduce the internal resistance of battery by molding in parallel, and extra diaphragm paper is cut by hot knife
Fall, then cooperates aluminum-plastic composite membrane shell, after completing primary encapsulation, the appearance of volume energy density and L-type with higher.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model preferred embodiment；
Fig. 2 be the utility model preferred embodiment in battery collapse molding before structural schematic diagram；
Fig. 3 is battery structural schematic diagram after molding in the utility model preferred embodiment；
Fig. 4 is the structural schematic diagram of L-type positive plate in the utility model preferred embodiment；
Fig. 5 is the structural schematic diagram of negative electrode tab in the utility model preferred embodiment；
In figure: L-type positive plate 1, anode ear 2, L-type negative electrode tab 3, negative electrode lug 4, diaphragm paper 5, battery 6, battery anode
Ear 7, battery negative electrode lug 8, gummed paper 9, aluminium pole ears 10, copper nickel plating tab 11, high tempreture tape 12, aluminum-plastic composite membrane shell 100.
Specific embodiment
In order to be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, under
Face combines and is specifically illustrating, and the utility model is further described.
Embodiment 1, a kind of L-type stack type lithium ion battery, including L-type positive plate 1, L-type negative electrode tab 3, diaphragm paper 5, electricity
The aluminum-plastic composite membrane shell 100 of liquid and L-type is solved,
As shown in Figure 1, the battery 6 that tab is welded is located in aluminum-plastic composite membrane shell 100, plastic-aluminum combined putamina shell
Inside it is marked with electrolyte.
As shown in Figure 4 and Figure 5, L-type positive plate 1 is equipped with anode ear 2, and L-type negative electrode tab 3 is equipped with negative electrode lug 4, and L-type is just
Pole piece 1 and the L-type rotation angle position of L-type negative electrode tab 3 are equipped with inside semicircle rounded corner R, and rounded corner R can be to guarantee
Finished product is beautiful, and flanging is at 90 degree of right angles, aluminum plastic film not cracky.
As shown in Fig. 2, including L-type positive plate 1, anode ear 2, L-type negative electrode tab 3, negative electrode lug 4, diaphragm paper 5, the L-type is just
The two sides for being arranged in diaphragm paper 5, L-type positive plate 1, diaphragm paper 5 after stacking, L-type negative electrode tab 3 is laminated in pole piece 1, L-type negative electrode tab 3
Lamination forms battery 6.
As shown in figure 3, battery anode ear 7 is welded by 2 parallel connection of anode ear, battery negative electrode lug 8 by negative electrode lug 4 simultaneously
Connection is welded, and gummed paper 9 is posted at the ending that collapses of battery 6, and aluminium pole ears 10 are welded on the battery anode ear 7, electricity
High tempreture tape 12 is posted in pond core anode ear 7 and 10 junction of aluminium pole ears, and copper nickel plating tab is welded on the battery negative electrode lug 8
11, high tempreture tape 12 is posted in battery negative electrode lug 8 and 11 junction of copper nickel plating tab, due to the mode welded or riveted, pole
Ear extracts, and as conducting wire, either welds or rivets, all can burr and sharp corner, high tempreture tape 12 can play guarantor
The effect that shield aluminum-plastic composite membrane shell is not punctured by burr and sharp corner, and battery, in charge and discharge, tab is used as leading
Line has electric current process, and meeting heat production, therefore gummed paper is flexible in order to prevent preferably uses PI material high tempreture tape.
L-type positive plate 1, L-type negative electrode tab 3, stacking are arranged in the two sides of diaphragm paper 5, L-type positive plate 1, diaphragm after stacking
After paper 5,3 lamination of L-type negative electrode tab form battery 6, extra diaphragm is being cut away with hot knife, on every L-type positive plate 1 all
Equipped with anode ear 2, battery anode ear 7 is formed by welding by 2 parallel connection of anode ear, and aluminium pole ears 10 are on battery anode ear 7, aluminium
High tempreture tape is posted in tab 10 and 7 junction of battery anode ear, and L-type negative electrode tab 3 is equipped with negative electrode lug 4, battery negative electrode lug 8
It is formed by welding by 4 parallel connection of negative electrode lug, for copper nickel plating tab 11 on battery negative electrode lug 8, copper nickel plating tab 11 and battery are negative
High tempreture tape, battery outer layer gummed paper are posted in 8 junction of tab, and rubberizing paper is fixed；Battery 6, electrolyte level are multiple in plastic-aluminum
It closes in putamina body 100.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (5)
1. a kind of L-type stack type lithium ion battery, it is characterised in that it includes L-type aluminum-plastic composite membrane shell (100), plastic-aluminum combined
Be equipped in putamina body (100) with the consistent battery of its cavity shape (6), is packaged with electrolysis in aluminum-plastic composite membrane shell (100)
Liquid, the battery (6) are collapsed by the stacking of L-type positive plate (1), diaphragm paper (5) and L-type negative electrode tab (3), and each L-type is just
It is respectively equipped on pole piece (1) anode ear (2), is respectively equipped with negative electrode lug (4) on each L-type negative electrode tab (3), each anode ear (2) is in parallel
It is formed by welding battery anode ear (7), battery negative electrode lug (8) are formed by welding in each negative electrode lug (4) parallel connection, in battery anode ear
(7) aluminium pole ears (10) for stretching out aluminum-plastic composite membrane shell (100) are equipped with, is equipped on battery negative electrode lug (8) and stretches out plastic-aluminum
The copper nickel plating tab (11) of composite membrane shell (100).
2. a kind of L-type stack type lithium ion battery according to claim 1, which is characterized in that in battery anode ear (7)
With the junction of aluminium pole ears (10), and in the junction of battery negative electrode lug (8) and copper nickel plating tab (11) high temperature is posted
Gummed paper (12).
3. a kind of L-type stack type lithium ion battery according to claim 1, which is characterized in that the L-type positive plate (1)
And the L-type rotation angle position of L-type negative electrode tab (3) is equipped with inside rounded corner R.
4. a kind of L-type stack type lithium ion battery according to claim 1, which is characterized in that battery (6) passes through gummed paper
It is fixed in aluminum-plastic composite membrane shell (100).
5. a kind of L-type stack type lithium ion battery according to claim 1, which is characterized in that the receipts that collapse of battery (6)
Gummed paper (9) are posted at tail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920639077.1U CN209544535U (en) | 2019-05-07 | 2019-05-07 | A kind of L-type stack type lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920639077.1U CN209544535U (en) | 2019-05-07 | 2019-05-07 | A kind of L-type stack type lithium ion battery |
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| Publication Number | Publication Date |
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| CN209544535U true CN209544535U (en) | 2019-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920639077.1U Active CN209544535U (en) | 2019-05-07 | 2019-05-07 | A kind of L-type stack type lithium ion battery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111710898A (en) * | 2020-06-01 | 2020-09-25 | Oppo广东移动通信有限公司 | Lithium battery cell, preparation method of lithium battery cell and lithium battery |
| WO2021195909A1 (en) * | 2020-03-31 | 2021-10-07 | 宁德新能源科技有限公司 | Battery core and electrochemical device applying same |
-
2019
- 2019-05-07 CN CN201920639077.1U patent/CN209544535U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021195909A1 (en) * | 2020-03-31 | 2021-10-07 | 宁德新能源科技有限公司 | Battery core and electrochemical device applying same |
| CN111710898A (en) * | 2020-06-01 | 2020-09-25 | Oppo广东移动通信有限公司 | Lithium battery cell, preparation method of lithium battery cell and lithium battery |
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