CN207052644U - A kind of rigid package lithium battery group - Google Patents
A kind of rigid package lithium battery group Download PDFInfo
- Publication number
- CN207052644U CN207052644U CN201720419972.3U CN201720419972U CN207052644U CN 207052644 U CN207052644 U CN 207052644U CN 201720419972 U CN201720419972 U CN 201720419972U CN 207052644 U CN207052644 U CN 207052644U
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- China
- Prior art keywords
- lithium battery
- section
- aluminizing
- copper base
- copper
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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
-
- 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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- Connection Of Batteries Or Terminals (AREA)
Abstract
It the utility model is related to rigid package lithium battery group.The utility model lithium battery group is using composite conductive plate as excessive electric adaptor,So as to realize the series connection between lithium battery,The composite conductive plate includes copper base,The naked section of copper base is connected with the positive terminal of a lithium battery,The section of aluminizing of the copper base is connected with the negative terminal of another lithium battery,The section surface of aluminizing of the copper base is provided with aluminium lamination,So as to realize the series connection between lithium battery,Due to lithium battery just,The junction of negative terminal is same metal material,Metal material it is active identical,Therefore also just produced without electrochemical reaction,And due to very close to each other between aluminium lamination and copper base,Therefore electrochemical reaction and corrosion will not be produced between the aluminium lamination and copper base in composite conductive plate,So as to avoid the increase because of resistance,Cause lithium battery just,Seriously the generate heat accident caught fire of negative terminal occurs,Therefore the utility model rigid package lithium battery group is safe,Extend lithium battery service life.
Description
Technical field
Integrated lithium battery group technical field is the utility model is related to, more particularly to a kind of rigid package lithium battery group.
Background technology
At present, domestic new energy application is constantly promoted, and lithium battery is widely used in new energy pure electric automobile, storage already
Can the occasion such as equipment, we it is common to integrated battery group be to be combined by many cells, have two kinds of duricrust and soft shell
Manner of packing.This patent is related to duricrust and packs cylindrical cell, and according to rated capacity size, diameter and length are not yet
Together, voltage have 1.8,2.4,3.2V equal-specifications.According to different power and voltage needs, by multiple duricrust cylinder cells
Connection in series-parallel combine, battery both ends insertion be fixed in special band annulus hole plastic skeleton, then with angle bar be fixed into square or
Rectangle.
Cell making process requires that the positive terminal material of each duricrust cylinder single lithium battery is copper, negative terminal material
For aluminium, anode and cathode terminals are connected during series connection；Present domestic duricrust cylindrical lithium battery Integrated manufacture business uses copper or aluminium plated surface
Directly copper post is connected with aluminium column electrode terminal for the connecting plate of same metal material.
Strictly, copper positive terminal can not be directly connected to aluminium, and same aluminum honeycomb terminal can not be directly connected to copper, because
Metal activity series for copper, aluminium element are different, and copper and aluminum can not be directly connected to, as long as because both junctions have it is small
Small gap, copper and aluminum, which link together, will produce electrochemical reaction, and especially wet environment is more serious, when copper, aluminium
The lower extreme son of moisture, carbon dioxide and other impurities effect in the contact surface and air of two kinds of metals easily forms electrolyte, from
And form using galvanic cell of the aluminium as negative terminal, copper for positive terminal, aluminium surface is produced couple corrosion, generation is linen
Alundum (Al2O3), the contact resistance of copper post and aluminium post junction is caused to increase.
For pure electric automobile in acceleration or quick charge, battery electric current in fast charging and discharging is larger, can produce high current
Electric discharge and charging, when these high currents flow through the extreme sub-pieces junction of copper aluminium, meeting be brought rapidly up because resistance is big；Under normal circumstances
If battery pack overtemperature can automatically power off protection by supporting BMS battery management systems, battery is seted to cause vapour from continuing discharge and recharge
Car can not start or charge；If running into BMS management system malfunction and failures, cell damage can be caused or even fire occurs.
Utility model content
Above-mentioned the shortcomings of the prior art that what the purpose of this utility model was overcome, and provide it is a kind of it is simple in construction,
Rationally, using composite conductive plate as excessive electric adaptor, the positive and negative electrode junction for ensureing lithium battery is identical active metal
Material and very close to each other, it is avoided that because electrochemical rust occurs and produces resistance, and causes positive and negative electrode terminal to heat up too high generation
Fire incident, the flexible package lithium cell group with the advantages of having a safety feature, service life is long.
What the purpose of this utility model was realized in：
A kind of rigid package lithium battery group, including at least two lithium batteries, composite conductive plate, packing ring of aluminizing, nut of aluminizing, plating
Copper washer and plating copper nut, one end of the lithium battery are provided with positive terminal, and the other end of lithium battery is provided with negative terminal, institute
State positive terminal to be made up of copper product, the negative terminal is made up of aluminum, the company of being sequentially connected in series between the lithium battery
Connect, be connected in series between the lithium battery by composite conductive plate, the composite conductive plate includes copper base, and copper base includes plating
Aluminium section and naked section, the naked section of the copper base are connected with the positive terminal of a lithium battery, the copper base aluminize section with
The negative terminal connection of another lithium battery, the section surface of aluminizing of the copper base are provided with aluminium lamination.
Aluminize section and the naked section are located at the both sides of copper base respectively.
The aluminium lamination be plated on copper base aluminize section surface on.
The naked section of the copper base is provided with first through hole, and the section of aluminizing of the copper base is provided with the second through hole, and described
One through hole is socketed on the positive terminal of a lithium battery, and second through hole is socketed on the negative terminal of another lithium battery.
The positive terminal and negative terminal are provided with screw thread, and packing ring of aluminizing is placed on negative terminal and pushes down copper base
Aluminize section, plating copper washer is placed on positive terminal and pushes down the naked section of copper base, the plating copper nut and positive terminal screw thread
Connect and push down plating copper washer, nut of aluminizing is threadedly coupled with negative terminal and pushes down plating copper washer.
The area of the aluminium lamination is more than or equal to the area for packing ring of aluminizing, and the area of aluminium lamination accounts for composite conductive plate surface area
Half.
The composite conductive plate is in waist template shape.
The beneficial effects of the utility model are as follows：
The naked section of the copper base is connected with the positive terminal of a lithium battery, aluminize section and another lithium of the copper base
The negative terminal connection of battery, the section surface of aluminizing of the copper base are provided with aluminium lamination.
The utility model lithium battery group realizes the series connection between lithium battery using composite conductive plate, and composite conductive plate includes copper
Substrate, the naked section of copper base are connected with the positive terminal of a lithium battery, aluminize section and another lithium battery of the copper base
Negative terminal connects, and the section surface of aluminizing of the copper base is provided with aluminium lamination, so as to realize the series connection between lithium battery, due to lithium electricity
The junction of the positive and negative electrode terminal in pond is same metal material, metal material it is active identical, therefore also just without electrification
Reaction is learned to produce, and due to very close to each other between aluminium lamination and copper base, therefore the aluminium lamination in composite conductive plate and copper base it
Between will not produce electrochemical reaction and corrosion, so as to avoid the increase because of resistance, when lithium battery heavy-current discharge and charging, lead
Lithium battery positive and negative electrode terminal is caused seriously to generate heat the accident generation caught fire, therefore the utility model rigid package lithium battery group security
Height, extend lithium battery service life.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model rigid package lithium battery group.
Fig. 2 is Fig. 1 top view.
Fig. 3 is the mplifying structure schematic diagram at A in Fig. 1.
Fig. 4 is the single lithium battery of the utility model（Omit end cap）Structural representation.
Fig. 5 is the structural representation of composite conductive plate of the present utility model.
Fig. 6 is the cross section structure diagram at A-A in Fig. 5.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is further described to the utility model.
As shown in Fig. 1 to Fig. 6, a kind of rigid package lithium battery group, including multiple lithium batteries 1, fixed mount（Not shown in figure）、
Composite conductive plate 4, packing ring 6 of aluminizing, nut 5 of aluminizing, plating copper washer 8 and plating copper nut 7, the lithium battery 1 is cylindrical, institute
The one end for stating lithium battery 1 is provided with positive terminal 2, and the other end of lithium battery 1 is provided with negative terminal 3, and the lithium battery is arranged on
On fixed mount, the positive terminal 2 and negative terminal 3 of lithium battery are exposed in the both sides of fixed mount, the positive terminal 2 of lithium battery and negative
End cap 9 is equipped with extreme son 3, the positive terminal 2 is made up of copper product, and the negative terminal 3 is made up of aluminum,
It is sequentially connected in series, is connected in series between the lithium battery 1 by composite conductive plate 4, the composite guide between the lithium battery 1
Electroplax 4 includes copper base 40, and copper base 40 includes aluminize section 42 and naked section 41, the lithium of naked section 41 and one of the copper base 40
The positive terminal 2 of battery 1 is connected, and the section 42 of aluminizing of the copper base 40 is connected with the negative terminal 3 of another lithium battery 1, described
The surface of section 42 of aluminizing of copper base 40 is provided with aluminium lamination 45.
Aluminize section 42 and the naked section 41 are located at the both sides of copper base 40 respectively.
The aluminium lamination 45 be plated on copper base 40 aluminize section 42 surface on.
The naked section 41 of the copper base 40 is provided with first through hole 43, and the section 42 of aluminizing of the copper base 40 is logical provided with second
Hole 44, the first through hole 43 are socketed on the positive terminal 2 of a lithium battery 1, and second through hole 44 is socketed on another lithium electricity
On the negative terminal 3 in pond 1.
The positive terminal 2 and negative terminal 3 are provided with screw thread, and packing ring 6 of aluminizing is placed on negative terminal 3 and pushed down copper-based
The section 42 of aluminizing of plate 40, plating copper washer 8 are placed on positive terminal 2 and push down the naked section 41 of copper base 40, the plating copper nut 7
It is threadedly coupled with positive terminal 2 and pushes down plating copper washer 8, nut 5 of aluminizing is threadedly coupled with negative terminal 3 and pushes down plating copper washer
8。
The area of the aluminium lamination 45 is more than or equal to the area for packing ring 6 of aluminizing, and the area of aluminium lamination 45 accounts for the table of composite conductive plate 4
The half of area.
The composite conductive plate 4 is in waist template shape.
Operation principle of the present utility model is；
Because the utility model lithium battery group using composite conducting piece realizes series connection between lithium battery, lithium battery just,
The junction of negative terminal is same metal material, metal material it is active identical, therefore just there is no electrochemical reaction yet
Produce, and due to very close to each other between aluminium lamination and copper base, therefore will not between the aluminium lamination and copper base on composite conducting piece
Producing electrochemical reaction and corrosion, the resistance of the junction of positive and negative electrode terminal will not increase, even if lithium battery is carrying out high current
When electric discharge and charging, positive and negative electrode terminal also will not seriously generate heat, so as to avoid the accident that lithium battery positive and negative electrode terminal catches fire
Occur, therefore the utility model flexible-packed battery group is safe, extends lithium battery service life.
Claims (8)
1. a kind of rigid package lithium battery group, including at least two lithium batteries (1), one end of the lithium battery (1) is provided with positive terminal
Sub (2), the other end of lithium battery (1) are provided with negative terminal (3), and the positive terminal (2) is made up of copper product, the negative pole
Terminal (3) is made up of aluminum, it is characterized in that, in addition to composite conductive plate (4), by compound between the lithium battery (1)
Conductive plate (4) is sequentially connected in series, and the composite conductive plate (4) includes copper base (40), and copper base (40) includes section of aluminizing
(42) and naked section (41), the surface of the section of aluminizing (42) are provided with aluminium lamination (45), the naked section (41) and a lithium battery (1)
Positive terminal (2) connection, the section of aluminizing (42) is connected with the negative terminal (3) of another lithium battery (1).
2. rigid package lithium battery group according to claim 1, it is characterized in that, the section of aluminizing (42) and naked section (41) are respectively
Positioned at the both sides of copper base (40).
3. rigid package lithium battery group according to claim 2, it is characterized in that, the aluminium lamination (45) is to be plated on copper base (40)
Aluminize on the surface of section (42).
4. rigid package lithium battery group according to claim 2, it is characterized in that, the naked section (41) of the copper base (40) is provided with
First through hole (43), the section of aluminizing (42) of the copper base (40) are provided with the second through hole (44), first through hole (43) socket
In on the positive terminal (2) of a lithium battery (1), second through hole (44) is socketed on the negative terminal (3) of another lithium battery (1)
On.
5. rigid package lithium battery group according to claim 3, it is characterized in that, in addition to packing ring of aluminizing (6), nut of aluminizing (5),
Copper washer (8) and plating copper nut (7) are plated, the positive terminal (2) and negative terminal (3) are provided with screw thread, packing ring of aluminizing (6)
It is placed on negative terminal (3) and pushes down the section of aluminizing (42) of copper base (40), plating copper washer (8) is placed on positive terminal (2) simultaneously
The naked section (41) of copper base (40) is pushed down, the plating copper nut (7) is threadedly coupled with positive terminal (2) and pushes down plating copper washer
(8) nut (5) of, aluminizing is threadedly coupled with negative terminal (3) and pushes down plating copper washer (8).
6. rigid package lithium battery group according to claim 4, it is characterized in that, the area of the aluminium lamination (45), which is more than or equal to, aluminizes
The area of packing ring (6).
7. rigid package lithium battery group according to claim 6, it is characterized in that, the area of the aluminium lamination (45) accounts for composite conductive plate
(4) half of surface area.
8. rigid package lithium battery group according to claim 1, it is characterized in that, the composite conductive plate (4) is in waist template shape.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016207219828 | 2016-07-11 | ||
| CN201620721982 | 2016-07-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207052644U true CN207052644U (en) | 2018-02-27 |
Family
ID=61490269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720419972.3U Expired - Fee Related CN207052644U (en) | 2016-07-11 | 2017-04-20 | A kind of rigid package lithium battery group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207052644U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108615847A (en) * | 2018-06-20 | 2018-10-02 | 湖北圣融科技有限公司 | A kind of composite battery internal connection line |
| CN108963143A (en) * | 2018-08-24 | 2018-12-07 | 德朗能（张家港）动力电池有限公司 | Lithium battery group with warning function |
| CN109037533A (en) * | 2018-08-24 | 2018-12-18 | 德朗能（张家港）动力电池有限公司 | A kind of lithium battery group of anti-overheat |
-
2017
- 2017-04-20 CN CN201720419972.3U patent/CN207052644U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108615847A (en) * | 2018-06-20 | 2018-10-02 | 湖北圣融科技有限公司 | A kind of composite battery internal connection line |
| CN108963143A (en) * | 2018-08-24 | 2018-12-07 | 德朗能（张家港）动力电池有限公司 | Lithium battery group with warning function |
| CN109037533A (en) * | 2018-08-24 | 2018-12-18 | 德朗能（张家港）动力电池有限公司 | A kind of lithium battery group of anti-overheat |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180227 Termination date: 20190420 |