CN208142290U - A kind of stack type lithium ion battery - Google Patents
A kind of stack type lithium ion battery Download PDFInfo
- Publication number
- CN208142290U CN208142290U CN201721435791.6U CN201721435791U CN208142290U CN 208142290 U CN208142290 U CN 208142290U CN 201721435791 U CN201721435791 U CN 201721435791U CN 208142290 U CN208142290 U CN 208142290U
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- Prior art keywords
- negative
- blank
- lithium ion
- ion battery
- negative electrode
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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 relates to technical field of lithium ion, and in particular to a kind of stack type lithium ion battery.A kind of stack type lithium ion battery, including shell and the positive plate, negative electrode tab, diaphragm, anode collection disk and the negative pole currect collecting disk that are packaged in the shell, the multiple positive plate and multiple negative electrode tabs are staggered, the diaphragm is arranged between adjacent positive plate and negative electrode tab and forms battery core, the anode and cathode of the battery core are respectively arranged with blank plus plate current-collecting body and blank negative current collector, the blank plus plate current-collecting body connects the anode collection disk, and the blank negative current collector connects the negative pole currect collecting disk.Traditional tab is replaced by using blank collector, reduce the contact internal resistance between collector and tab, reduce the fever of tab, improve the current carrying capacity of lithium ion battery, the high current charge-discharge ability of the utility model is improved, so that the power of the utility model is high, performance is stable, long service life.
Description
Technical field
The utility model relates to technical field of lithium ion, and in particular to a kind of stack type lithium ion battery.
Background technique
It is higher and higher to the performance requirement of lithium battery with the fast development of digital product, and lithium battery is required to exist
It can accomplish quick charge in short time.The core strueture of reason battery has two kinds of lamination and winding, usually passes through positive and negative anodes at present
The positive and negative tab of on piece draws the energy of laminated batteries, and the lead-out mode of tab is limiting to a certain degree in lithium ion battery
Lithium ion battery holds current-carrying size, and high-power lithium ion battery requires higher charging and discharging currents, and traditional tab can be led
Serious fever is caused, or even causes safety accident.
Utility model content
In order to overcome shortcoming and defect existing in the prior art, the purpose of this utility model is to provide a kind of stacked
Lithium ion battery.
The purpose of this utility model is achieved through the following technical solutions：A kind of stack type lithium ion battery, including shell and
Positive plate, negative electrode tab, diaphragm, anode collection disk and the negative pole currect collecting disk being packaged in the shell, the multiple positive plate and
Multiple negative electrode tabs are staggered, and the diaphragm is arranged between adjacent positive plate and negative electrode tab and forms battery core, the battery core
Anode and cathode are respectively arranged with blank plus plate current-collecting body and blank negative current collector, described in the blank plus plate current-collecting body connection
Anode collection disk, the blank negative current collector connect the negative pole currect collecting disk.
Preferably, each described positive plate include two sides be coated with anode sizing agent plus plate current-collecting body and two sides it is equal
The blank plus plate current-collecting body of anode sizing agent is not coated, each described negative electrode tab includes that two sides is coated with negative electrode slurry
Negative current collector and two sides are without the blank negative current collector for coating negative electrode slurry, the blank plus plate current-collecting body and the sky
White negative current collector is respectively arranged at the opposite end of positive plate and negative electrode tab.
Preferably, the plus plate current-collecting body is aluminium foil, and the negative current collector is copper foil.
Preferably, the width of the diaphragm is greater than the width of the positive plate and negative electrode tab, and the two of the adjacent diaphragm are vertical
It is connected with each other to edge.
Preferably, the height of the blank plus plate current-collecting body and blank negative current collector is 3-10mm.
Preferably, the anode collection disk is aluminium current collecting plates, and the negative pole currect collecting disk is copper current collecting plates.
Preferably, the blank plus plate current-collecting body and anode collection disk weld, the blank negative current collector and cathode collection
Flow table welding.
Preferably, the anode collection disk is welded with positive conductive pole, and the negative pole currect collecting disk is welded with negative conductive
Pole.
Preferably, the shell includes nut cap and steel shell, and the positive conductive pole and the nut cap are welded, the cathode
Conductive pole column and the steel shell weld.
Preferably, the positive plate with a thickness of 0.014-0.016mm, the negative electrode tab with a thickness of 0.010-
0.012mm。
The beneficial effects of the utility model are：The stack type lithium ion battery of the utility model is by using blank afflux
Body replace traditional tab, reduce the contact internal resistance between collector and tab, reduce the fever of tab, improve lithium from
The current carrying capacity of sub- battery improves the high current charge-discharge ability of the utility model, so that the power of the utility model
High, performance stabilization, long service life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of battery core described in the utility model.
Appended drawing reference is：1, steel shell；2, nut cap；3, anode collection disk；4, negative pole currect collecting disk；5, positive plate；51, blank is being just
Pole collector；6, negative electrode tab；61, blank negative current collector；7, diaphragm；8, positive conductive pole；9, negative conductive pole.
Specific embodiment
For the ease of the understanding of those skilled in the art, below with reference to examples and drawings 1-2 to the utility model make into
The explanation of one step, the content that embodiment refers to not are the restriction to the utility model.
As shown in Figs. 1-2, it the utility model relates to a kind of stack type lithium ion battery, including shell and is packaged in described outer
Positive plate 5, negative electrode tab 6, diaphragm 7, anode collection disk 3 and negative pole currect collecting disk 4 in shell, the multiple positive plate 5 and multiple negative
Pole piece 6 is staggered, and the diaphragm 7 is arranged between adjacent positive plate 5 and negative electrode tab 7 and forms battery core, and the battery core is just
Pole and cathode are respectively arranged with blank plus plate current-collecting body 51 and blank negative current collector 61, and the blank plus plate current-collecting body 51 connects
The anode collection disk 3, the blank negative current collector 61 connect the negative pole currect collecting disk 4.
The stack type lithium ion battery of the utility model replaces traditional tab by using blank collector, reduces collection
Contact internal resistance between fluid and tab, reduces the fever of tab, improves the current carrying capacity of lithium ion battery, improves
The high current charge-discharge ability of the utility model, so that the power of the utility model is high, performance is stable, long service life.Every
The width of film 7 is greater than the width of positive plate 5 and negative electrode tab 6, and positive plate 5 and negative electrode tab 6 is enable preferably to separate.
In the present embodiment, each described positive plate 5 include two sides be coated with anode sizing agent plus plate current-collecting body and
Without the blank plus plate current-collecting body 51 for coating anode sizing agent, each described negative electrode tab 6 is coated with including two sides on two sides
The negative current collector of negative electrode slurry and two sides are without the blank negative current collector 61 for coating negative electrode slurry, the blank anode collection
Fluid 51 and the blank negative current collector 61 are respectively arranged at the opposite end of positive plate 5 and negative electrode tab 6.
The two sides of each plus plate current-collecting body is coated with anode sizing agent layer and forms positive plate 5, each is described just
The free end of pole collector, which is equipped with, does not coat positive electrode active materials region formation blank plus plate current-collecting body 51；Described in each
The two sides of negative current collector is coated with negative electrode slurry layer and forms negative electrode tab 6, and the free end of each negative current collector is equal
Region equipped with no coating negative electrode active material forms blank negative current collector 61.
The anode sizing agent prepared and negative electrode slurry are passed through into intermittent coating method respectively and are coated on each anode collection
On body and negative current collector, through drying, film and cutting are rolled, obtains the positive plate 5 and one that one end is equipped with blank plus plate current-collecting body 51
End is equipped with the negative electrode tab 6 of blank negative current collector 61, and list is inserted into one end that positive plate 5 is equipped with blank plus plate current-collecting body 51 outward
It is inserted into single Z-shaped 7 septation 7 of diaphragm outward in a Z-shaped diaphragm 7, by one end that negative electrode tab 6 is equipped with blank negative current collector 61
In, battery core is formed, the blank plus plate current-collecting body 51 of positive plate 5 and the blank negative current collector 61 of negative electrode tab 6 are located at battery core
Both ends.
In the present embodiment, the plus plate current-collecting body is aluminium foil, and the negative current collector is copper foil.
Aluminium foil under high potential will not embedding lithium, and there is oxide layer on surface, is suitble to do plus plate current-collecting body, copper foil is under low potential
It will not aoxidize, be suitble to do negative current collector.
In the present embodiment, the width of the diaphragm 7 is greater than the width of the positive plate 5 and negative electrode tab 6, the adjacent diaphragm
7 two longitudinal edges are connected with each other.
The width of each diaphragm 7 is all larger than the width of positive plate 5 and negative electrode tab 6, and each diaphragm 7 is horizontal prominent on the longitudinal edges
For the certain width surplus of positive plate 5 and negative electrode tab 6, i.e., surplus outstanding makes the stacking that contacts with each other between neighboring separators, phase
Adjacent diaphragm 7 is connected with each other, and positive plate 5 or negative electrode tab 6 are encapsulated between neighboring separators 7, positive plate 5 and negative electrode tab are avoided
6 contacts lead to short circuit.
In the present embodiment, the height of the blank plus plate current-collecting body 51 and blank negative current collector 61 is 3-10mm.
The blank plus plate current-collecting body 51 of other positive plates 5 and the blank negative current collector 61 of negative electrode tab 6 are tied in advance
End with battery core is same plane, is welded together the blank collector that multilayer is tied by ultrasonic bond, then by blank
Plus plate current-collecting body 51 and blank negative current collector 61 are welded with anode collection disk 3 and negative pole currect collecting disk 4 respectively.The utility model is logical
It crosses and sets 3-10mm for the width of blank plus plate current-collecting body 51 and tailpiece blank negative current collector 61, for welding corresponding collection
Flow table replaces traditional tab by way of exposing blank aluminium foil and copper foil, reduces the contact between foil and extraction tab
Internal resistance reduces the fever at foil and tab, improves the bearing capacity of lithium battery electric current, utility model is made to be able to carry out big electricity
Charge and discharge are flowed, use is safer.
In the present embodiment, the anode collection disk 3 is aluminium current collecting plates, and the negative pole currect collecting disk 4 is copper current collecting plates.
In the present embodiment, the blank plus plate current-collecting body 51 is welded with anode collection disk 3, the blank negative current collector 61
It is welded with negative pole currect collecting disk 4.
In the present embodiment, the anode collection disk 3 is welded with positive conductive pole 8, and the negative pole currect collecting disk 4 is welded with negative
Pole conductive pole column 9.
In the present embodiment, the shell includes nut cap 2 and steel shell 1, and the positive conductive pole 8 is welded with the nut cap 2,
The negative conductive pole 9 is welded with the steel shell 1.
Current collecting plates include latticed matrix and the side string that extends around to the same side from matrix, during matrix is equipped with
Heart hole and liquid injection hole, and conductive pole column is welded, positive conductive pole 8 is welded in nut cap 2, negative conductive pole 9 is welded on
On shell, the stack type lithium ion battery that then progress roller slot, fluid injection, sealing are sealed, negative conductive pole 9 is adopted with shell
With electric resistance welding, positive conductive pole 8 and nut cap 2 use Laser Welding.The stack type lithium ion battery of the utility model, goes to the bottom thereon
Face is respectively positive and negative electrode end face.
In the present embodiment, the positive plate 5 with a thickness of 0.014-0.016mm, the negative electrode tab 6 with a thickness of 0.010-
0.012mm。
By being 0.014-0.016mm by the thickness control of positive plate 5, the thickness control of negative electrode tab 6 is the utility model
0.010-0.012mm, obtained battery capacity is larger, and electric conductivity is preferable.Preferably, positive plate 5 with a thickness of 0.014mm,
Negative electrode tab 6 with a thickness of 0.012mm.
Above-described embodiment is the preferable implementation of the utility model, and in addition to this, the utility model can be with other sides
Formula realizes that any obvious replacement is in the protection model of the utility model without departing from the concept of the premise utility
Within enclosing.
Claims (9)
1. a kind of stack type lithium ion battery, it is characterised in that：Including shell and the positive plate, the cathode that are packaged in the shell
Piece, diaphragm, anode collection disk and negative pole currect collecting disk, the multiple positive plate and multiple negative electrode tabs are staggered, and the diaphragm is set
It sets and forms battery core between adjacent positive plate and negative electrode tab, the anode and cathode of the battery core are respectively arranged with blank anode collection
Fluid and blank negative current collector, the blank plus plate current-collecting body connect the anode collection disk, the blank negative current collector
Connect the negative pole currect collecting disk；Each described positive plate includes the plus plate current-collecting body and two that two sides is coated with anode sizing agent
Without the blank plus plate current-collecting body for coating anode sizing agent, each described negative electrode tab includes that two sides is coated with cathode slurry in face
The negative current collector of material and two sides are without the blank negative current collector for coating negative electrode slurry, the blank plus plate current-collecting body and institute
State the opposite end that blank negative current collector is respectively arranged at positive plate and negative electrode tab.
2. a kind of stack type lithium ion battery according to claim 1, it is characterised in that：The plus plate current-collecting body is aluminium
Foil, the negative current collector are copper foil.
3. a kind of stack type lithium ion battery according to claim 1, it is characterised in that：The width of the diaphragm is greater than institute
The width of positive plate and negative electrode tab is stated, two longitudinal edges of the adjacent diaphragm are connected with each other.
4. a kind of stack type lithium ion battery according to claim 1, it is characterised in that：The blank plus plate current-collecting body and
The height of blank negative current collector is 3-10mm.
5. a kind of stack type lithium ion battery according to claim 1, it is characterised in that：The anode collection disk is aluminium collection
Flow table, the negative pole currect collecting disk are copper current collecting plates.
6. a kind of stack type lithium ion battery according to claim 1, it is characterised in that：The blank plus plate current-collecting body with
The welding of anode collection disk, the blank negative current collector and negative pole currect collecting disk weld.
7. a kind of stack type lithium ion battery according to claim 1, it is characterised in that：The anode collection disk is welded with
Positive conductive pole, the negative pole currect collecting disk are welded with negative conductive pole.
8. a kind of stack type lithium ion battery according to claim 7, it is characterised in that：The shell includes nut cap and steel
Shell, the positive conductive pole and the nut cap are welded, and the negative conductive pole and the steel shell weld.
9. a kind of stack type lithium ion battery according to claim 1, it is characterised in that：The positive plate with a thickness of
0.014-0.016mm, the negative electrode tab with a thickness of 0.010-0.012mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721435791.6U CN208142290U (en) | 2017-10-31 | 2017-10-31 | A kind of stack type lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721435791.6U CN208142290U (en) | 2017-10-31 | 2017-10-31 | A kind of stack type lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208142290U true CN208142290U (en) | 2018-11-23 |
Family
ID=64284337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721435791.6U Expired - Fee Related CN208142290U (en) | 2017-10-31 | 2017-10-31 | A kind of stack type lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208142290U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110224109A (en) * | 2019-05-23 | 2019-09-10 | 湖北锂诺新能源科技有限公司 | Anode pole piece, cathode pole piece and battery core and lithium battery and preparation method thereof |
| CN111403820A (en) * | 2020-03-27 | 2020-07-10 | 湖北亿纬动力有限公司 | Core pack and manufacturing method thereof, single battery and manufacturing method and module thereof |
| CN112290168A (en) * | 2020-10-16 | 2021-01-29 | 武汉逸飞激光设备有限公司 | Full-tab lithium battery and preparation method thereof |
| CN116544626A (en) * | 2023-07-03 | 2023-08-04 | 上海瑞浦青创新能源有限公司 | Energy storage device |
-
2017
- 2017-10-31 CN CN201721435791.6U patent/CN208142290U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110224109A (en) * | 2019-05-23 | 2019-09-10 | 湖北锂诺新能源科技有限公司 | Anode pole piece, cathode pole piece and battery core and lithium battery and preparation method thereof |
| CN111403820A (en) * | 2020-03-27 | 2020-07-10 | 湖北亿纬动力有限公司 | Core pack and manufacturing method thereof, single battery and manufacturing method and module thereof |
| CN112290168A (en) * | 2020-10-16 | 2021-01-29 | 武汉逸飞激光设备有限公司 | Full-tab lithium battery and preparation method thereof |
| CN112290168B (en) * | 2020-10-16 | 2022-11-08 | 武汉逸飞激光股份有限公司 | Full-tab lithium battery and preparation method thereof |
| CN116544626A (en) * | 2023-07-03 | 2023-08-04 | 上海瑞浦青创新能源有限公司 | Energy storage device |
| CN116544626B (en) * | 2023-07-03 | 2023-10-20 | 上海瑞浦青创新能源有限公司 | energy storage device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181123 Termination date: 20211031 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |