CN202454640U - Novel aluminum tab and circuit board conducting strip embedded type connecting piece - Google Patents
Novel aluminum tab and circuit board conducting strip embedded type connecting piece Download PDFInfo
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- CN202454640U CN202454640U CN2012200380280U CN201220038028U CN202454640U CN 202454640 U CN202454640 U CN 202454640U CN 2012200380280 U CN2012200380280 U CN 2012200380280U CN 201220038028 U CN201220038028 U CN 201220038028U CN 202454640 U CN202454640 U CN 202454640U
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- conducting strip
- circuit board
- aluminum tab
- board conducting
- connecting piece
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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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Abstract
The utility model belongs to the technical field of battery manufacture and relates to a novel aluminum tab and circuit board conducting strip embedded type connecting piece for lithium batteries and lithium ion batteries. The novel aluminum tab and circuit board conducting strip embedded type connecting piece is characterized in that the conducting strip connecting piece consists of an aluminum tab and a circuit board conducting strip, concave slots are arranged on two lateral sides of one end of an aluminum tab substrate, one end of the circuit board conducting strip is provided with inverted-C-shaped inserting slices corresponding to the concave slots, two edges of each inserting slice are correspondingly folded up in a right-angle mode, and the inserting slices inserted into the concave slots are in a tight connecting state. By adopting the novel aluminum tab and circuit board conducting strip embedded type connecting piece, the temperature of the coated aluminum tab is 6-12 DEG C lower than that of an elongated nickel-plated aluminum tab with the same size as the coated aluminum tab after large current passes through the coated aluminum tab, the space occupied by the aluminum tab is small, the battery safety is improved, and the connecting piece is suitable for the lithium batteries and the lithium ion batteries with different structures, especially for high-power lithium batteries and lithium ion batteries.
Description
Technical field
The utility model belongs to technical field of battery manufacture; Relate to a kind of novel aluminium pole ears and embedded connector of circuit board conducting strip that is used for lithium battery and lithium ion battery; This connector is useful for the lithium battery or the lithium ion battery of different structure, is specially adapted to high power lithium battery or lithium ion battery.
Background technology
The fast development of mobile electronic equipment is had higher requirement to lithium battery and lithium ion battery.The lithium ion battery here comprises polymer Li-ion battery, flexible packing lithium ion battery, box hat lithium ion battery and plastic housing lithium ion battery.The structure of lithium battery and lithium ion battery mainly is divided into takeup type and stacked two big classes.When preparation lithium battery and lithium ion battery; At first process anode pole piece and cathode pole piece; Adopt modes such as riveted joint, ultrasonic spot welding or Laser Welding again; On anode pole piece, connect and be used for the aluminium pole ears of transmission current, at an end (i.e. " commentaries on classics nickel ") that connects the nickel lug on the aluminium pole ears with modes such as riveted joint, ultrasonic spot welding or Laser Welding, the other end with the nickel lug is connected on the IC circuit board at last then.Anode pole piece is to having " aluminium-aluminium ", " aluminium-nickel ", " nickel-copper " tie point or solder joint between the IC circuit board.Because these tie points or solder joint belong to a connection; The area of tie point or solder joint is little; Exist to connect or welding is not firm, virtual connections or rosin joint, tie point or solder joint get an electric shock indirectly that resistance is big, tie point or solder joint are easy to make the preparation battery have problems such as batch unstable properties problem such as depositing or use is oxidized.During battery discharge, particularly during heavy-current discharge, tie point or solder joint exist resistance excessive, inhomogeneous, cause problems such as caloric value is excessive, have obviously weakened the battery ability of externally doing work, and the insecurity that battery uses strengthens.In when charging, possibly exist the problems referred to above to cause the charging difficulty because of tie point or solder joint, cause the potential safety hazards such as heating, burning of battery.For this reason, in recent years, some researchers attempt nickel plating or other alloy on aluminium pole ears, to realize simplifying the preparation process and the purpose of improving the batch battery consistency of battery.
Utility model patent 200820009887.0 relate to a kind of aluminium strip base material one end surfaces be covered with nickel, copper, tin or other can be directly on the aluminium pole ears of metal of tin.Utility model patent ZL2008202125092 relates to a kind of lithium battery aluminium pole ears, comprises banded aluminum strip, at an end of aluminum strip chemical Ni-plating layer is arranged.The patent of invention of application number 200810143389X discloses a kind of lithium ionic cell positive pole ear and preparation method thereof.This patent uses the method for plating or electroless coating to form the firm non-aluminum metal layer of combination at the upper and lower surfaces of aluminum substrate layer one end, like nickel or tin-nickel alloy layer.Utility model patent 200820215661.6 and application number are that 200810236321.6 patent of invention all relates to the aluminium pole ears that an a kind of end has nickel dam.Wherein, nickel coating is packaging type or at the tow sides of an end of lug lamellar body or only positive or only on reverse side.Utility model patent 200920063603.0 relate to an a kind of end at aluminium compound the lug of non-aluminium alloy.The patent of invention of application number 2010101101270 relates to plating one deck nickel coating in a side end of SUS430 stainless steel band, copper strips, aluminium strip, nickel strap substrate elder generation, and the method for plating one deck tin coating again is with the preparation lug.Utility model patent 200920058776.3 relates to a kind of aluminium pole ears structure that need not change nickel, the nickel plating outside aluminium pole ears of its positive pole.Utility model patent 200920042215.4 relates to the aluminium pole ears coiled strip that a kind of poly-lithium battery uses, and one section nickel metal or nickel coating are arranged between this kind aluminium pole ears and the reel.
Because anode pole piece mainly plays conduction and thermolysis to the connecting portion between the IC circuit board.When carrying out high current charge-discharge; Above connecting portion maybe be because of expanded by heating; Influence switching performance, cause the variation of tie point contact resistance, therefore; In the lithium battery that adopts the coating aluminium pole ears, the resistivity, conductive coefficient and the coefficient of linear expansion that form alloy interface and coating itself between aluminum strip, aluminium and the coating are all influential to conduction and thermolysis.
From resistivity, in the time of 20 ℃, the resistivity of common metal is respectively copper 1.678 μ Ω cm, aluminium 2.65 μ Ω cm; Magnesium 4.39 μ Ω cm, nickel 6.93 μ Ω cm ((Hohn A. Dean, Lange's Chemistry Handbook, the 15th edition; Publishing house: McGraw-Hill, 1999), the resistivity of aluminium alloy is respectively; Aluminium silicon nickel alloy 5.95 μ Ω cm, hiduminium 5.95 μ Ω cm, magnalium nickel alloy 9.12 μ Ω cm (Zheng Feng chief editor; Aluminium and aluminium alloy quick checking handbook, Chemical Industry Press, Beijing: 2008.7. the 1st edition)); It is thus clear that usually the resistivity of aluminium alloy is above than being twice of fine aluminium and fine copper, and be more or less the same with the resistivity of nickel.On lug during through big electric current, the caloric value at the alloy position of formation is big in the middle of aluminum strip and the coating.And when coating was nickel dam, the caloric value of nickel coating was also bigger.
From 25 ℃ metal heat-conducting coefficient, argent 429W/ (mK), copper 401W/ (mK), aluminium 237W/ (mK), magnesium 156W/ (mK), nickel 90.9W/ (mK) (Hohn A. Dean, Lange's Chemistry Handbook; The 15th edition, publishing house: McGraw-Hill, 1999); The conductive coefficient of aluminium alloy is respectively; Aluminium silicon nickel alloy 159.1W/ (mK), hiduminium 113W/ (mK), magnalium nickel alloy 92.1W/ (mK).Thus it is clear that, the thermal conductivity ratio fine aluminium of aluminium alloy and fine copper much little, only more bigger than metallic nickel.When the heat that produces when each several part on the lug was identical, the rate of heat dispation of aluminum strip and copper coating was fast, and the rate of heat dispation of aluminium alloy and nickel coating is the slowest.It is thus clear that, adopting in the lithium battery of nickel-plated aluminum lug, the resistivity of the alloy-layer in the middle of nickel coating and the aluminum strip is maximum often; The heat that produces is maximum, and radiating effect is bad, therefore; With " commentaries on classics nickel " contrast; The nickel-plated aluminum lug of onesize strip under the heavy-current discharge condition, still produces high temperature because of heating easily.
Consider the structure difference of the lithium battery and the lithium ion battery of different battery enterprise production; Even the lithium battery of same enterprise production and lithium ion battery also will adopt the lug of different size according to battery types, battery structure, therefore being necessary for each lithium battery makes lug to measure.In order to overcome above deficiency; Reduce aluminium use amount, aluminium radiating rate, lug size taking into account; Particularly consider the standardization of lug preparation and the convenience of assembling; The waste of lug when avoiding battery enterprise to change the battery product kind, the utility model relates to a kind of novel aluminium pole ears and the coated aluminium pole ears of the embedded connector latch of circuit board conducting strip troughed belt.The coated aluminium pole ears of this latch troughed belt is applied in lithium battery and the lithium ion battery, can rivets easily or weld with the latch interface of metal or alloy of the IC circuit board of pairing.Avoided lug battery assembling process " " process reduces the preparation process of battery, even under the condition of heavy-current discharge, is not easy to have improved the fail safe of battery because of heating produces high temperature to change nickel.。
The utility model content
The utility model provides a kind of novel aluminium pole ears and the embedded connector of circuit board conducting strip, it is characterized in that connector is made up of aluminium pole ears and circuit board conducting strip.On two sides of an end of aluminium pole ears base material, be provided with the matrix slot, an end of circuit board conducting strip is provided with and the rectangular corresponding inserted sheet of turning up that falls " C " in the corresponding both sides of matrix slot, and inserted sheet is tight connection status after embedding the matrix slot.On the side of matrix slot, be coated with the conductive coating of nickel, copper, copper alloy or nickel alloy with the method for plating or chemical plating.
Described matrix insertion slot type aluminium pole ears and circuit board conducting strip connector can be used for lithium battery or lithium ion battery.
Adopt the described method of the utility model, after through big electric current, the temperature of coating aluminium pole ears is hanged down 6～12 ℃ than the temperature of the strip nickel-plated aluminum lug of suitable size, and the space that aluminium pole ears occupies is little, has improved the fail safe of battery.
Description of drawings
Fig. 1 is the aluminium pole ears stereochemical structure view that the matrix slot has coating.
Fig. 2 is the transverse cross-sectional view that the matrix slot has the aluminium pole ears of coating.
Fig. 3 is the metal insert of IC circuit board conducting strip.
Fig. 4 is aluminium pole ears and the IC circuit board conducting strip assembling sketch map that the matrix slot has coating.
In Fig. 1 and Fig. 2,1 is strip form aluminium flake, and 2 is conductive coating on the side of matrix slot, and 3 is the matrix slot.
In Fig. 3,4 is IC circuit board conducting strip and the corresponding inserted sheet of matrix slot, and 5 is IC circuit board conducting strip.
In Fig. 4,1 is strip form aluminium flake, and 4 is IC circuit board conducting strip and the corresponding inserted sheet of matrix slot, and 5 is IC circuit board conducting strip.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model patent is further explained.Embodiment only is to further the replenishing and explanation of the utility model, rather than to the restriction of the utility model.
A kind of matrix insertion slot type aluminium pole ears and circuit board conducting strip connector, wherein:
The profile of aluminium pole ears is a strip, and the overall size of aluminium flake 1 is 35mm * 3mm * 4mm (length * wide * height), and an end length that has matrix slot 3 is 15mm; Matrix slot 3 overall sizes are 15mm * 1mm * 1.5mm (flute length * groove depth * concave port is wide), on the side of matrix slot 3, are coated with nickel metallic conduction coating 2.
The overall size of IC circuit board conducting strip 5 is 45mm * 3mm * 4mm (length * wide * height), and the length that wherein has an end of inserted sheet 4 is 15mm; Inserted sheet 4 overall sizes are 15mm * 1.5mm * 1mm (length * wide * height).
Conducting strip inserted sheet 4 with the IC circuit board of fine copper during use inserts in the aluminium pole ears matrix slots 3, and with the mode of welding conducting strip inserted sheet 4 is linked to each other with aluminium pole ears coating 2, and is as shown in Figure 4.
Through simulation test, after passing through 10 Ampere currents, the temperature ratio of coating aluminium pole ears is of a size of the temperature of the strip nickel-plated aluminum lug of 35mm * 3mm (long * wide) and hangs down 8.5 ℃, and the space that aluminium pole ears occupies is little, has improved the fail safe of battery.
A kind of matrix insertion slot type aluminium pole ears and circuit board conducting strip connector, wherein:
The profile of aluminium pole ears is a strip, and the overall size of aluminium flake is 65mm * 5mm * 6mm (length * wide * height), and the length that has an end of matrix slot 3 is 20mm; Matrix slot 3 overall sizes are 20mm * 1.5mm * 2mm (flute length * groove depth * concave port is wide), on the side of matrix slot 3, are coated with copper alloy conductive coating 2.
The overall size of IC circuit board conducting strip 5 is 75mm * 5.5mm * 4mm (length * wide * height), and the length that wherein has an end of inserted sheet 4 is 20mm; Inserted sheet 4 overall sizes are 20mm * 2mm * 1.5mm (length * wide * height).
Conducting strip inserted sheet 4 with the IC circuit board of fine copper during use inserts in the aluminium pole ears matrix slots 3, and links to each other with the mode of welding, and is as shown in Figure 4.
Through simulation test, after passing through 15 Ampere currents, the temperature ratio of coating aluminium pole ears is of a size of the temperature of the strip nickel-plated aluminum lug of 65mm * 5mm (long * wide) and hangs down 11 ℃, and the space that lug occupies is little, has improved the fail safe of battery.
Material and overall size are with embodiment 1, and different is on the side of matrix slot 3, to be coated with nickel alloy conductive coating 2.
Through simulation test, after passing through 12 Ampere currents, the temperature ratio of coating aluminium pole ears is of a size of the temperature of the strip nickel-plated aluminum lug of 35mm * 3mm (long * wide) and hangs down 9.5 ℃, and the space that aluminium pole ears occupies is little, has improved the fail safe of battery.
Embodiment
Material and overall size are with embodiment 2, and different is on the side of matrix slot 3, to be coated with copper metallic conduction coating 2.
Through simulation test, after passing through 12 Ampere currents, the temperature ratio of coating aluminium pole ears is of a size of the temperature of the strip nickel-plated aluminum lug of 35mm * 3mm (long * wide) and hangs down 10.5 ℃, and the space that aluminium pole ears occupies is little, has improved the fail safe of battery.
Claims (3)
1. novel aluminium pole ears and the embedded connector of circuit board conducting strip; It is characterized in that the embedded connector of described conducting strip is made up of aluminium pole ears and circuit board conducting strip; On two sides of an end of aluminium pole ears base material, be provided with the matrix slot; One end of circuit board conducting strip is provided with and the rectangular corresponding inserted sheet of turning up of " C " in the corresponding both sides of matrix slot, and inserted sheet is tight connection status after inserting the matrix slot.
2. a kind of novel aluminium pole ears according to claim 1 and the embedded connector of circuit board conducting strip is characterized in that on the side of matrix slot, being coated with the conductive layer of nickel, copper, copper alloy or nickel alloy.
3. a kind of novel aluminium pole ears according to claim 1 and the embedded connector of circuit board conducting strip is characterized in that described conducting strip connector, can be used for lithium battery or lithium ion battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200380280U CN202454640U (en) | 2012-02-06 | 2012-02-06 | Novel aluminum tab and circuit board conducting strip embedded type connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200380280U CN202454640U (en) | 2012-02-06 | 2012-02-06 | Novel aluminum tab and circuit board conducting strip embedded type connecting piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202454640U true CN202454640U (en) | 2012-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200380280U Expired - Fee Related CN202454640U (en) | 2012-02-06 | 2012-02-06 | Novel aluminum tab and circuit board conducting strip embedded type connecting piece |
Country Status (1)
| Country | Link |
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| CN (1) | CN202454640U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102569712A (en) * | 2012-02-06 | 2012-07-11 | 福建师范大学 | Connecting member consisting of concave slot type aluminum polar lug and circuit board conducting strip |
-
2012
- 2012-02-06 CN CN2012200380280U patent/CN202454640U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102569712A (en) * | 2012-02-06 | 2012-07-11 | 福建师范大学 | Connecting member consisting of concave slot type aluminum polar lug and circuit board conducting strip |
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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: 20120926 Termination date: 20150206 |
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| EXPY | Termination of patent right or utility model |