CN101847702B - Structure for high-conductivity connection outside batteries by using graphite - Google Patents
Structure for high-conductivity connection outside batteries by using graphite Download PDFInfo
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- CN101847702B CN101847702B CN2009101301861A CN200910130186A CN101847702B CN 101847702 B CN101847702 B CN 101847702B CN 2009101301861 A CN2009101301861 A CN 2009101301861A CN 200910130186 A CN200910130186 A CN 200910130186A CN 101847702 B CN101847702 B CN 101847702B
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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
Abstract
The invention discloses a structure for high-conductivity connection outside batteries by using graphite. The structure comprises a first battery, at least one graphite joint block and a second battery, wherein a positive pole head and a negative pole head, which contain nickel, are arranged outside the first battery and used as the power output end of the first battery; the graphite joint block is connected to the negative pole head of the first battery; a positive pole head and a negative pole head, which contain nickel, are arranged outside the second battery and used as the power output end of the second battery; and the positive pole head of the second battery is connected with the graphite joint block, so that the first battery and the second battery are electrically connected in series. The graphite joint block directly is contacted with the nickel-containing pole heads of the batteries without the welding procedure. The graphite is cheap to obtain and can not be easily oxidized, the graphite joint block can generate a mutual dissolution phenomenon after being contacted with the positive pole head and the negative pole head, and thus, the invention can solve the problem of failure in successful heavy-current discharge due to too high connection resistance outside the batteries.
Description
Technical field
The present invention relates to a kind of with non-welding, be difficult for the oxidation kenel, carry out the technical pattern that high conductivity between the battery individuality connects.
Background technology
The building form of present high electric weight battery pack mainly is that a plurality of batteries are individual, carry out the electric power series, parallel or series and parallel of this each battery individuality by metal connecting sheet after, consist of the battery pack of high electric weight.Wherein, it is made that the positive pole of this battery individuality and negative pole external metallization cartridge are generally nickeliferous metal, and that this metal connecting sheet also is nickeliferous metal is made, mainly is to get nickeliferous metal to be difficult for oxidation and the high characteristic of stability.Conventional batteries connects in the operation, as shown in Figure 1, 2, no matter connected in series or in parallel, the capital with nickel metal connecting sheet 10 by the electric welding technology, nickel metal connecting sheet 10 is fixed in an electric welding mode on the metal cartridge 12 of battery 11, reduces the contact impedance of the outside of battery pack by the tight binding of pad 13.
It should be noted that tradition by nickel metal connecting sheet and solder technology, the electric connection as between the individual cartridge of two batteries although meet the basic electric property connection requirement of battery pack, still has many defectives, for example:
1. nickel metal connecting sheet and solder joint place still have burning or adhere to the impurity problem after long-time the use, and cause the resistance of brace to raise.
2. metal connecting sheet and battery cartridge electric welding connecting portion are spot welding, and contact point is little and impedance is high, when causing the charging, discharging electric batteries operation, battery cartridge and spot welding position because of the impedance occurrence temperature rise unusual, and cause the battery electric power excess loss.
3. the processing of the cost of nickel sheet metal costliness, and electric welding is consuming time taking a lot of work also, for battery industry circle, is not the battery interconnection technique of less expensive.
Therefore, the individual electric connection technology of the battery of conventional batteries, and can't meet the primary demand of cost economy and high conductivity, and need under a kind of prerequisite not needing welding sequence, low material cost of design, can improve the technical scheme of the conduction efficiency that battery is electrically connected.This scheme has not only broken through the development bottleneck of conventional art, has significantly advanced especially the development of existing battery interconnection technique.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of structure of carrying out the connection of outside batteries high conductivity by graphite, need not pass through welding sequence, namely be able to high conductivity and reach electric connection, and the graphite acquisition cost is low, so for industrial circle, can significantly reduce manufacturing cost.
For solving above technical problem, the invention provides and a kind ofly carry out the structure that the outside batteries high conductivity is connected in series by graphite, comprise: one first battery, the outside of this first battery are provided with positive pole and the negative pole head of nickeliferous metal, as the power output end of this first battery; At least one graphite connects piece, is arranged in the negative pole head of this first battery; One second battery, the outside of this second battery are provided with positive pole and the negative pole head of nickeliferous metal, as the power output end of this second battery, connect piece with the anodal cartridge of this second battery and this graphite and connect and establish, and are electrically connected so that first and second battery is finished series connection.
When carrying out structure that the outside batteries high conductivity is connected in parallel by this graphite, comprising: one the 3rd battery, the outside of the 3rd battery are provided with positive pole and the negative pole head of nickeliferous metal, as the power output end of the 3rd battery; One first graphite connects piece, is arranged in the anodal cartridge of the 3rd battery; One the 4th battery, the outside of the 4th battery are provided with positive pole and the negative pole head of nickeliferous metal, as the power output end of the 4th battery, connect piece with the anodal cartridge of the 4th battery and this first graphite and connect and establish; One second graphite connects piece, is arranged in the negative pole head of the 3rd battery and the negative pole head of the 4th battery, so that third and fourth battery is finished in parallel the electric connection.
Beneficial effect of the present invention is; mainly be to connect the bridging structure that piece is electrically connected as serial or parallel connection between two batteries with graphite; to connect piece be directly to contact with the battery cartridge to be connected to this graphite among the present invention; this graphite connects piece itself and is difficult for oxidized; the battery that this graphite connects piece and nickeliferous metal just; after contacting, negative pole head can produce " phenomenon of dissolving each other "; that is; the carbon particulate that this graphite connects piece just can replace nickeliferous metal; the impurity on negative pole head surface; the carbon particulate that makes this graphite connect piece just is positioned at; in the metal surface pothole of negative pole head; and form the carbon nickel alloy state that dissolves each other, can solve by this battery and connect the too high smoothly problem of heavy-current discharge of impedance because of the outside.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Fig. 1 is the structural representation that known batteries is connected by the nickel sheet.
Fig. 2 is that known batteries is carried out structural representation in parallel by the nickel sheet.
Fig. 3 is that the present invention connects the schematic diagram that piece carries out the battery series connection by graphite.
Fig. 4 is that the present invention connects the schematic diagram that piece carries out cell parallel by graphite.
Fig. 5-the 1st, battery metal cartridge surface attachment has the schematic diagram of impurity state.
Fig. 5-the 2nd, graphite of the present invention connect piece and metal cartridge Surface Contact rear impurity is replaced view by carbon particulate.
Fig. 6 is that the present invention connects the schematic diagram that piece carries out battery series and parallel formation battery pack by graphite.
Fig. 7 is two aluminium foil bag packed batteries carry out the series connection of two aluminium foil bag packed batteries by structure of the present invention schematic diagram.
Primary clustering symbol description in the accompanying drawing:
10 braces, 11 batteries
12 metal cartridges, 13 pads
20 first batteries, 21 anodal cartridges
22 negative pole head, 30 graphite connect piece
40 second batteries, 41 anodal cartridges
42 negative pole head 50,50a, 50b spring
51,51a, 51b follow block 60 the 3rd battery
61 anodal cartridge 62 negative pole head
70 first graphite connect piece 80 the 4th battery
81 anodal cartridge 82 negative pole head
90 second graphite connect piece 101,102 aluminium foil bag packed batteries
103 metal positive-pole utmost point handles, 104 metal negative pole utmost point handles
200 oxides, 300 battery pack
Individual 302 graphite of 301 batteries connect piece
401,402 graphite terminals 403,404,405,406 wires
500 impurity, 600 carbon particulates
Embodiment
The embodiment of the invention provides a kind ofly carries out outside batteries high conductivity structure connected in series or in parallel by graphite;
At first, seeing also Fig. 3, when carrying out the work in tandem of this battery individuality, is to connect piece as the electric connection of battery series connection with at least one graphite between this first and second battery, so that have higher connection conductance between this first and second battery, and wherein:
This first battery 20 is that the battery of cylinder kenel is individual, is respectively equipped with anodal cartridge 21 and negative pole head 22, the first batteries 20 of nickeliferous metal and passes through this positive and negative electrode cartridge 21,22 power output ends as this first battery 20 in outside two ends;
This graphite connects piece 30, this graphite connects piece 30 can select pure graphite or alloy graphite, this alloy graphite wherein, such as can be: silver-colored graphite (silver-colored carbon alloy) or copper graphite (copper and carbon alloy) or conductive carbon etc. connect piece 30 rear electrically the connecing that contact with the negative pole head 22 of this first battery 20 with this graphite and establish;
This second battery 40, outside two ends are respectively equipped with anodal cartridge 41 and the negative pole head 42 of nickeliferous metal, and by this positive and negative electrode cartridge 41,42 power output ends as this second battery 40, anodal cartridge 41 and the graphite of this second battery 40 connects piece 30 rear electrically the connecing that contact and establishes; And can connect piece 30 by a spring 50 and these graphite of a follow block 51 pushing and pressing, and make this graphite connect piece 30 and this first and second battery 20,40 and keep good electrical contact, by this, can finish first and second battery 20,40 series connection is electrically connected;
In addition, can connect respectively in the anodal cartridge 41 of the negative pole head 22 of this first battery 20 and the second battery 40 and to establish a graphite terminal 401,402 as first and second battery 20,40 the final output of electric power, this graphite terminal 401,402 is provided with a wire 403,404 as the electric power output lead in can be when moulding.
Again, seeing also Fig. 4, when carrying out the operation in parallel of two battery individualities, is to connect piece with at least one the first graphite between this third and fourth battery and at least one the second graphite connects piece as the electric connection of parallel connection, so that have the higher conductance that is connected in parallel between this third and fourth battery, wherein:
The 3rd battery 60 is that the battery of cylinder kenel is individual, is respectively equipped with anodal cartridge 61 and the negative pole head 62 of nickeliferous metal in outside two ends, and passes through this positive and negative electrode cartridge 61,62 power output ends as the 3rd battery 60;
This first graphite connects piece 70, is to contact electrically to connect with the anodal cartridge 61 of the 3rd battery 60 to establish;
The 4th battery 80 is that the battery of cylinder kenel is individual, is respectively equipped with anodal cartridge 81 and the negative pole head 82 of nickeliferous metal in outside two ends, and passes through this positive and negative electrode cartridge 81,82 power output ends as the 4th battery 80; The anodal cartridge 81 of the 4th battery 80 and this first graphite connect piece 70 and contact electrically to connect and establish;
This second graphite connects piece 90, be arranged in the negative pole head 62 of the 3rd battery 60 and the negative pole head 82 of the 4th battery 80, and can be by one group of spring 50a, 50b and follow block 51a, 51b, push against respectively this first and second graphite and connect piece 70,90, make this first and second graphite connect piece 70,90 and third and fourth battery 60,80 keep good electrical contact state, and so that third and fourth battery 60,80 is finished in parallel the electric connection.
In addition, this first and second graphite connects piece 70,90 and is provided with a wire 405,406 in when moulding as third and fourth battery 60,80 electric power output lead.
The above is structure and the configuration explanation thereof of each main member of the embodiment of the invention, effect as for the embodiment of the invention, because the present invention connects direct the contact as serial or parallel connection with the battery individuality of piece by graphite to establish, in the process, do not need to pass through welding sequence, and have high conductivity, for battery industry circle, exempted from but the cost of traditional welding operation.
It should be noted that, this is first years old, two batteries 20,40 outsides just, negative pole head 41,22 are all the cartridge structure of nickeliferous metal, see also shown in Fig. 5-1, at the nickel metal just, negative pole head 41,22 surfaces can be attached with impurity 500 or oxide, this impurity 500 or oxide can cause first, two batteries 20, connection impedance during 40 discharge raises and the discharging efficiency of reduction battery, see also Fig. 3, shown in the 5-2, this is by structural design of the present invention, carry out that outside batteries connects and be able to high conductivity, wherein, this graphite connect piece 30 be with this first, two batteries 20,40 metal just, negative pole head 41,22 electrically connect and establish, this graphite connects piece 30 itself and is not easy oxidized, and this graphite connect piece 30 and nickeliferous metal this first, two batteries 20,40 just, negative pole head 41,22 can produce " phenomenon of dissolving each other " after contacting, that is, the carbon particulate 600 that this graphite connects piece 30 can just replace nickeliferous metal, negative pole head 41, impurity 500 or the oxide on 22 surfaces, the carbon particulate 600 that makes this graphite connect piece 30 just is positioned at, negative pole head 22, in 41 the metal surface pothole, and form the carbon nickel alloy state that dissolves each other, this graphite be can improve by this and piece 30 and first connect, two batteries 20, connection conductance between 40, in other words, can not be subject to the potential energy that oxide or impurity 500 causes by structure battery conducting after-current of the present invention and hinder impact, and can circulate in smoothly this first battery 20, graphite connects between piece 30 and the second battery 40, not only reduced this first, two batteries 20, outside between 40 connects impedance, and help to impel this first, two batteries 20,40 smoothly discharges.
By structural design of the present invention, see also shown in Figure 6, when connecing serial or parallel connection or the string that piece 302 carries out battery individuality 301 with several battery individualities 301 by several graphite of the present invention, when parallel connection consists of the battery pack 300 of high electric weight, because this graphite connects the phenomenon of can dissolving each other when piece 302 contacts with nickeliferous metal cartridge, and improve connection conductance between this each battery individuality 301, the by this external impedance loss of this battery pack 300, electrically connect with nickel sheet metal spot welding compared to tradition and to establish, obvious, lower by the external impedance after the electric connection of the technology of the present invention battery, and battery individual 301 reduces with the contact resistance that graphite connects piece 302 electrical contact positions, working temperature also reduces comparatively speaking, in other words, the battery resistance discharge loss by the technology of the present invention is minimized the smoothly high efficiency output of the electric weight of battery pack.
In addition, the kenel of current battery individuality is except the round metal jar structure as the aforementioned, see also Fig. 7, the aluminium foil bag packed battery is applicable technology of the present invention also, this aluminium foil bag packed battery just, negative pole is extended with the utmost point handle of nickeliferous metal usually, as shown in Figure 7, carry out two aluminium foil bag packed batteries 101 by technology of the present invention, during 102 work in tandem, one graphite can be connect piece 30 respectively with these two aluminium foil bag packed batteries 101,102 nickeliferous metal just, negative pole utmost point handle 103,104 are electrically connected connection gets final product, it is worth mentioning that, only battery outward appearance pattern is different from the aluminium foil bag packed battery for the metal-back battery, but essence is electrically connected effect and indifference, in other words, technology of the present invention and inside battery structure-irrelevant, as long as battery just, negative pole head is nickeliferous metal, can connect the outside batteries connection that piece carries out high conductivity by graphite of the present invention.
Claims (4)
1. one kind is carried out the structure that the outside batteries high conductivity connects by graphite, it is characterized in that, when being connected in series, comprising: one first battery, the outside of this first battery is provided with anodal cartridge and the negative pole head of nickeliferous metal, as the power output end of this first battery; At least one graphite connects piece, is arranged in the negative pole head of this first battery; One second battery, the outside of this second battery is provided with anodal cartridge and the negative pole head of nickeliferous metal, as the power output end of this second battery, connect piece with the anodal cartridge of this second battery and this graphite and connect and establish, so that finishing series connection, this first and second battery is electrically connected; Push against this graphite by a spring and a follow block and connect piece and first and second battery close contact.
2. one kind is carried out the structure that the outside batteries high conductivity connects by graphite, it is characterized in that, when being connected in parallel, comprising: one the 3rd battery, the outside of the 3rd battery is provided with anodal cartridge and the negative pole head of nickeliferous metal, as the power output end of the 3rd battery; At least one the first graphite connects piece, and this first graphite connects the anodal cartridge that piece is arranged in the 3rd battery; One the 4th battery, the outside of the 4th battery are provided with anodal cartridge and the negative pole head of nickeliferous metal, as the power output end of the 4th battery, connect piece with the anodal cartridge of the 4th battery and this first graphite and connect; At least one the second graphite connects piece, and this second graphite connects piece and is arranged in the negative pole head of the 3rd battery and the negative pole head of the 4th battery, so that this third and fourth battery is finished in parallel the electric connection; Push against this graphite by a spring and a follow block and connect piece and third and fourth battery close contact.
3. as claimed in claim 1ly carry out the structure that the outside batteries high conductivity connects by graphite, it is pure graphite or alloy graphite that this graphite connects piece.
4. as claimed in claim 3ly carry out the structure that the outside batteries high conductivity connects by graphite, this alloy graphite is silver-colored carbon alloy graphite or copper and carbon alloy graphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101301861A CN101847702B (en) | 2009-03-24 | 2009-03-24 | Structure for high-conductivity connection outside batteries by using graphite |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101301861A CN101847702B (en) | 2009-03-24 | 2009-03-24 | Structure for high-conductivity connection outside batteries by using graphite |
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| Publication Number | Publication Date |
|---|---|
| CN101847702A CN101847702A (en) | 2010-09-29 |
| CN101847702B true CN101847702B (en) | 2013-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101301861A Active CN101847702B (en) | 2009-03-24 | 2009-03-24 | Structure for high-conductivity connection outside batteries by using graphite |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104795526B (en) * | 2014-01-20 | 2017-04-12 | 电能有限公司 | A method of welding rechargeable batteries to a circuit board to form a conductive link |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3447968A (en) * | 1965-07-16 | 1969-06-03 | Standard Oil Co | Electrical energy storage device and method of storing electrical energy |
| US4343982A (en) * | 1981-03-23 | 1982-08-10 | Energy Development Associates, Inc. | Method of joining metal to graphite by spot welding |
| CN2251197Y (en) * | 1996-02-08 | 1997-04-02 | 五邑大学 | Internal series horizontal non-circulation Zn-Br cell |
| EP1067611A1 (en) * | 1998-03-26 | 2001-01-10 | TDK Corporation | Electrode for cell, method of manufacturing the same and cell |
| CN2762362Y (en) * | 2004-12-28 | 2006-03-01 | 天津力神电池股份有限公司 | Single built-in PTC structure of square lithium ion battery |
-
2009
- 2009-03-24 CN CN2009101301861A patent/CN101847702B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3447968A (en) * | 1965-07-16 | 1969-06-03 | Standard Oil Co | Electrical energy storage device and method of storing electrical energy |
| US4343982A (en) * | 1981-03-23 | 1982-08-10 | Energy Development Associates, Inc. | Method of joining metal to graphite by spot welding |
| CN2251197Y (en) * | 1996-02-08 | 1997-04-02 | 五邑大学 | Internal series horizontal non-circulation Zn-Br cell |
| EP1067611A1 (en) * | 1998-03-26 | 2001-01-10 | TDK Corporation | Electrode for cell, method of manufacturing the same and cell |
| CN2762362Y (en) * | 2004-12-28 | 2006-03-01 | 天津力神电池股份有限公司 | Single built-in PTC structure of square lithium ion battery |
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| CN101847702A (en) | 2010-09-29 |
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Effective date of registration: 20161207 Address after: Taiwan, Hsinchu, China Hukou Township Industrial Zone Five Industrial Road No. 7, No. Patentee after: Bixiang Electric Energy High Science & Technology Co., Ltd. Address before: british virgin islands Patentee before: Electric Co., Ltd. |