CN202977575U - Lithium ion battery anode tab - Google Patents
Lithium ion battery anode tab Download PDFInfo
- Publication number
- CN202977575U CN202977575U CN2012204188618U CN201220418861U CN202977575U CN 202977575 U CN202977575 U CN 202977575U CN 2012204188618 U CN2012204188618 U CN 2012204188618U CN 201220418861 U CN201220418861 U CN 201220418861U CN 202977575 U CN202977575 U CN 202977575U
- Authority
- CN
- China
- Prior art keywords
- lithium ion
- ion battery
- nickel
- anode tab
- battery anode
- 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
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Classifications
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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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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model belongs to the field of the lithium ion battery manufacturing technology, and particularly discloses a lithium ion battery anode tab. The lithium ion battery anode tab comprises an aluminum tape, wherein a nickel plating layer is arranged at the tail end of the aluminum tape, and tab adhesive for binding is arranged in the middle of the aluminum tape. A layer of metal nickel is plated at the tail end of the lithium ion battery anode tab and replaces the existing welding nickel bar, the high-temperature welding process of a charged battery can be reduced, the problems that the battery easily has cold soldering joint, burn-in, short circuit and even explosion in the welding process can be avoided, and the quality of the battery can be ensured; in addition, the nickel usage amount can be reduced, precious resources are saved, the production efficiency is improved and the production cost is lowered; and the lithium ion battery anode tab is small in resistance, high in voltage, and large in capacity.
Description
Technical field
The utility model belongs to technical field of lithium-ion battery, particularly a kind of lithium ionic cell positive pole ear.
Background technology
Lithium ion battery is present most widely used secondary cell, and its manufacturing technology is also day by day perfect.The existing a large amount of patents of cell integrated and battery each several part, for example the patent No. is 201120057292.4, notification number is 201120057292.4, and name is called a kind of utility model patent of high-safety lithium battery, and it comprises battery body, cell positive pole ear and negative lug, described positive pole ear and negative lug, one of them lug is connected with battery body, owing to connecting by nickel strap by two nickel straps, the consumption nickel material is more, and nickel is to connect by the operation of welding usually.
In addition, also disclose the manufacture method of some lithium ion cell polar ears, its basic manufacture method is: connect the aluminum lug on positive plate, the end of aluminum lug with ultrasonic wave or laser welding on the nickel bar so that soldering.As seen, more or less there is the technique very complicated in existing these methods, and production cost is higher, sometimes also can cause the problems such as dry joint and resistance increase.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of lithium ionic cell positive pole ear is disclosed, this lithium ionic cell positive pole ear is at its end portion plating layer of metal nickel, replace existing welding nickel bar, reduced the high-temperature soldering process that also will carry out after the battery charging, the problem of avoid rosin joint that battery easily occurs in welding process, freeze, short circuit being exploded is even guaranteed the quality of battery.
In order to overcome above-mentioned technical purpose, the utility model is realized by following technical scheme:
Lithium ionic cell positive pole ear described in the utility model comprises aluminium strip, and the terminal part of described aluminium strip is provided with nickel coating, and the middle part of described aluminium strip is for being used for bonding tab.
The thickness range of described nickel coating is 3.5～5 microns.
The width of described aluminium strip is 2mm or 3mm.
The manufacture method of lithium ionic cell positive pole ear described in the utility model, the method replace the method for existing welding nickel bar with the method for nickel plating, greatly reduced the consumption of nickel, have saved valuable resource, enhance productivity, and reduce production costs; In addition, its resistance of lug of the lithium ion battery that is made by this method is less, and voltage is higher, and capacity is larger.
The manufacture method of lithium ionic cell positive pole ear described in the utility model,
(1) oil removing: the end portion of the aluminum lug that aluminium strip is made is placed in degreasing fluid and carries out oil removing under certain condition, and after oil removing, water cleans up;
(2) activation: under room temperature, the end portion of the aluminum lug that cleans up after oil removing is put into activating solution and activate, after activation, water cleans up;
(3) nickel plating: the end portion of the aluminum lug after activating is put into chemical nickel-plating liquid or electronickelling liquid,, makes the end portion plating layer of metal nickel of aluminum lug under certain condition;
(4) cleaning, drying: the end portion cleaning, drying that will plate good aluminum lug.
As the further improvement of above-mentioned technology, in the described deoiling step of above-mentioned steps (1), described degreasing fluid is formulated by following substances in percentage by weight:
Described surfactant is selected lauryl sodium sulfate, or polyoxyethylene aliphatic alcohol ether, or secondary Polyethylene Octylphenol Ether, or any one or at least two kinds in OPEO.
In the described deoiling step of above-mentioned steps (1), its condition is: temperature: 20～50 ℃; Time: 1～5 minute.
As the further improvement of above-mentioned technology, in the described activation step of above-mentioned steps (2), the percentage by weight of described activating solution consists of:
In the described nickel plating step of above-mentioned steps (3), it can adopt two kinds of nickel plating modes:
The first, when adopting chemically coated nickel method, the percentage by weight of described chemical nickel-plating liquid consists of:
The condition of the described chemical nickel plating of this chemically coated nickel method is:
PH value 4～6
60～90 ℃ of temperature
1～10 minute time.
The second, when adopting the method for electronickelling, the percentage by weight of described electronickelling liquid consists of:
Described brightener is asccharin or ALS or butynediols or propilolic alcohol.
The condition of described electronickelling is:
Compared with prior art, the beneficial effects of the utility model are:
(1) the utility model is due to the end portion plating layer of metal nickel of the aluminum lug of making at aluminium strip, replace existing welding nickel bar, reduced the high-temperature soldering process that also will carry out after the battery charging, the problem of avoid rosin joint that battery easily occurs in welding process, freeze, short circuit being exploded even;
(2) the utility model by nickel plating, has greatly reduced the consumption of nickel, has saved valuable resource, enhances productivity and has reduced production cost.
(3) its resistance of lug of the lithium ion battery that makes of the utility model is less, and voltage is higher, and capacity is larger.
Description of drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail:
Fig. 1 is lithium ionic cell positive pole ear structural representation described in the utility model;
Fig. 2 is lithium ionic cell positive pole ear manufacture method schematic flow sheet described in the utility model.
Embodiment
As shown in Figure 1, Dun lithium ionic cell positive pole ear described in the utility model, comprise aluminium strip 1, the terminal part of described aluminium strip 1 is provided with nickel coating 11, the medium position of described aluminium strip 1 is for being used for bonding tab 12, its the other end is non-nickel plating section 13, and the thickness range of described nickel coating 11 is 3.5～5 microns.
The manufacture method of lithium ionic cell positive pole ear described in the utility model, concrete steps are as follows
(1) oil removing: the end portion of the aluminum lug that aluminium strip is made is placed in degreasing fluid and carries out oil removing under certain condition, and after oil removing, water cleans up;
(2) activation: under room temperature, the end portion of the aluminum lug that cleans up after oil removing is put into activating solution and activate, after activation, water cleans up;
(3) nickel plating: the end portion of the aluminum lug after activating is put into chemical nickel-plating liquid or electronickelling liquid,, makes the end portion plating layer of metal nickel of aluminum lug under certain condition;
(4) cleaning, drying: the end portion cleaning, drying that will plate good aluminum lug.
Following table is elaborated to the manufacture method of lithium ionic cell positive pole ear described in the utility model by three embodiment:
Test shows:
make the 2mm lug with lithium ionic cell positive pole ear manufacture method described in the utility model, be assembled into 651723 polymer Li-ion battery, more than capacity reaches 180mAh, naked battery core internal resistance is (the AC internal Resistance tester of 1KHz is tested) below 80m Ω, when discharging with 20C, capability retention reaches more than 95%, battery temperature is below 50 ℃, at 60 ℃, under the 90%RH environment, storage is 10 days, battery is without leakage, inflatable, on fire, blast, residual capacity is more than 80%, the recovery capacity is more than 90%, the battery properties meets GB/T18287, ROHS, the requirements such as CE, the 3mm lug that makes with this patent method, be assembled into 702030 polymer Li-ion battery, more than capacity reaches 320mAh, naked battery core internal resistance is (the AC internal Resistance tester of 1KHz is tested) below 50m Ω, when discharging with 20C, capability retention reaches more than 95%, battery temperature is below 50 ℃, at 60 ℃, under the 90%RH environment, storage is 10 days, and battery is without leakage, inflatable, on fire, blast, and residual capacity is more than 80%, the recovery capacity is more than 90%, and the battery properties meets the requirements such as GB/T18287, ROHS, CE,
The utility model is not limited to above-mentioned execution mode, every various changes of the present utility model or modification are not broken away from spirit and scope of the present utility model, if these are changed and within modification belongs to claim of the present utility model and equivalent technologies scope, the utility model also means and comprises these changes and modification.
Claims (1)
1. a lithium ionic cell positive pole ear, comprise aluminium strip, it is characterized in that: the end portion of described aluminium strip is provided with nickel coating, and its thickness is 5 microns, and the middle part of described aluminium strip is for being used for bonding tab, and the width of described aluminium strip is 2mm or 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204188618U CN202977575U (en) | 2012-08-22 | 2012-08-22 | Lithium ion battery anode tab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204188618U CN202977575U (en) | 2012-08-22 | 2012-08-22 | Lithium ion battery anode tab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202977575U true CN202977575U (en) | 2013-06-05 |
Family
ID=48518613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204188618U Expired - Fee Related CN202977575U (en) | 2012-08-22 | 2012-08-22 | Lithium ion battery anode tab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202977575U (en) |
-
2012
- 2012-08-22 CN CN2012204188618U patent/CN202977575U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20140822 |
|
| EXPY | Termination of patent right or utility model |