CN103311490B - Power-type lithium ion battery group and manufacture method thereof - Google Patents
Power-type lithium ion battery group and manufacture method thereof Download PDFInfo
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- CN103311490B CN103311490B CN201310156139.0A CN201310156139A CN103311490B CN 103311490 B CN103311490 B CN 103311490B CN 201310156139 A CN201310156139 A CN 201310156139A CN 103311490 B CN103311490 B CN 103311490B
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 25
- 229910052802 copper Inorganic materials 0.000 claims description 25
- 239000010949 copper Substances 0.000 claims description 25
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 21
- 229910052782 aluminium Inorganic materials 0.000 claims description 20
- 239000004411 aluminium Substances 0.000 claims description 16
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 4
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 6
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 239000005955 Ferric phosphate Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 229940032958 ferric phosphate Drugs 0.000 description 3
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 3
- 229910000399 iron(III) phosphate Inorganic materials 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012536 packaging technology Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
Abstract
The invention provides a kind of power-type lithium ion battery group and manufacture method thereof, it is by effectively implementing in the assembling of battery pack by this high reliability technological means of riveted joint, along the mode being with the connection in series-parallel plate of connection in series-parallel being assembled riveting in the lump while sealing riveting between negative pole and end cap, namely when cell has not all manufactured, connection in series-parallel connection has been assembled, namely reduce the production cost of battery pack, be improved reliability and production efficiency.
Description
Technical field
The present invention relates to the technical field of chemical power that new forms of energy lithium ion powered battery is relevant with storage station battery pack, refer in particular to and be a kind ofly applicable to the energy storage of wind energy and solar energy and the jumbo power-type lithium ion battery group of power and manufacture method thereof.
Background technology
At present, wind energy, the utilization of solar energy obtains fast development.But above-mentioned energy generation device has the shortcoming producing electric energy and stablize not, easily electrical network produced to impact.Therefore in order to ensure that it is better applied, set up corresponding storage station imperative, the corresponding high capacity lithium ion battery then needing reliability high for accumulation of energy, to store wind energy, the electricity that sun the subject of knowledge and the object of knowledge produces.Storage station is very high to the requirement of battery, such as high reliability and long life (more than 10 years) etc.And jumbo column lithium ion battery has high-energy-density (≤130wh/kg), advantage the can yet be regarded as suitable selection such as manufacturing process is simple.
No matter battery pack or the power vehicle battery pack of storage station, all high voltage high power capacity, therefore need to carry out multiple string or parallel connection to reach its requirement on electric performance with a large amount of cell, such as electric coach, general voltage request 576 V, 80Ah, 576 V voltage needs 180 groups of ferric phosphate lithium type batteries to carry out coupled in series to reach, for the capacity of 80Ah, can be reached by the cell parallel connection of 2 40Ah or 3 27Ah.
Battery pack packaging technology is the key effectively playing cell electrical property, good assemble method and technology can improve security performance and the useful life of battery pack, existing packaging technology is after cell manufacture completes, the positive pole of cell and negative pole brace are carried out serial or parallel connection and connects assembling, the useful bolt and nut of coupling method of usual employing is to plate and be connected and fixed, also useful method for laser welding by plate be connected and fixed, be connected and fixed with method for resistance welding or electromagnetism high energy welding method in addition, but each defectiveness of said method, still cannot meet existing demand.
Summary of the invention
The object of the invention is to overcome above-mentioned defect, a kind of the power-type lithium ion battery group and the manufacture method thereof that are suitable for riveting technology are provided.
The object of the present invention is achieved like this: a kind of power-type lithium ion battery group, and it comprises connection in series-parallel brace and multiple battery core; Described battery core comprises housing, positive pole joint pin, end casing and negative pole pole; Wherein, housing is tubular, and shell one end is closed, the adaptive described end casing sealing of the other end; Be provided with hole, chassis and liquid injection hole in one end of housings close, described liquid injection hole peripheral hardware has described positive pole joint pin, is provided with through hole in described end casing, and through hole is socketed with described negative pole pole; The positive pole joint pin of described multiple battery core and negative pole pole are connected by connection in series-parallel brace and realize serial or parallel connection, and the corresponding negative pole pole of described connection in series-parallel brace and positive pole joint pin are equipped with through hole; Described connection in series-parallel brace and end casing riveted joint are fixed by described negative pole pole; Described connection in series-parallel brace to be socketed on positive pole joint pin and to weld with it;
In said structure, described negative pole pole is formed with connection in series-parallel brace and end casing described in a circle boss pressing in riveting process; Also pad is provided with between the boss of described negative pole pole and connection in series-parallel brace;
In said structure, described negative pole pole is made up of copper or aluminum; Described connection in series-parallel brace is made up of aluminium or copper or nickel material; Described pad is made up of nickel-plated copper material;
In said structure, between described negative pole pole and end casing, be provided with insulating trip; The cross section of described negative pole pole is in T shape, the cross section of described insulating trip is I-shaped, and the insulating trip of I-shaped cross-section is socketed in the through hole of end casing, insulating trip hollow socket negative pole pole, the wider one end of negative pole pole is positioned at case inside, and this end outside dimension is greater than insulating trip perforate;
In said structure, described connection in series-parallel brace is formed with jog between adjacent housings.
Present invention also offers a kind of power-type lithium ion battery group manufacture method, it comprises step,
A), get the housing of multiple battery core, arrange the blind end of housing by the demand of series/parallel and be sealed with the direction of end casing end, and the housing of multiple battery core is arranged side by side;
B), according to the demand of series/parallel arrange connection in series-parallel brace in the shell end of adjacent battery core placed side by side, described connection in series-parallel brace correspondence is socketed in negative pole pole;
C), negative pole pole, connection in series-parallel brace and end casing are riveted; Positive pole joint pin on the blind end of the housing of battery core is welded with connection in series-parallel brace;
In above-mentioned steps C, pad placed by connection in series-parallel brace, and then negative pole pole is under the riveting pressure of high pressure, the outer rim of negative pole pole is extruded, squeezed splenium external diameter diminishes, and lower outer diameter becomes large thus, thus produces pressure by connection in series-parallel brace, pad and end casing pressing formation riveted joint;
D), by liquid injection hole on the blind end of the housing of battery core to fluid injection in housing;
In above-mentioned steps, described negative pole pole is made up of copper or aluminum; Described connection in series-parallel brace is made up of aluminium or copper or nickel material; Described pad is made up of nickel-plated copper material;
In above-mentioned steps, the cross section of described negative pole pole is in T shape; Also step is comprised before described steps A, be I-shaped insulating trip by being socketed cross section in the through hole of end casing, insulating trip hollow, the negative pole pole in T-shaped cross section is passed insulating trip hollow bulb by enclosure interior, the wider one end of negative pole pole is positioned at case inside, and this end outside dimension is greater than insulating trip perforate, then end casing is sealed in the openend of housing.
In above-mentioned steps, described connection in series-parallel brace is formed with jog by bending between adjacent cell.
Compared to structure and the manufacture method of common power-type lithium ion battery group, beneficial effect of the present invention there are provided a kind of battery pack structure and manufacture method, thus can this high reliability technological means of riveted joint effectively be implemented in the assembling of battery pack, by while the sealing riveting between negative pole pole and end cap along the mode being with the connection in series-parallel plate of connection in series-parallel being assembled riveting in the lump, namely when cell has not all manufactured, connection in series-parallel connection has been assembled, namely reduce the production cost of battery pack, be improved reliability and production efficiency.
Accompanying drawing explanation
Below in conjunction with accompanying drawing in detail concrete structure of the present invention is described in detail
Fig. 1 is the structural representation under technical solution of the present invention is applied in many bodies situation in parallel;
Fig. 2 is plan structure schematic diagram in Fig. 1;
Fig. 3 is the structural representation under technical solution of the present invention is applied in many bodies connection in series-parallel situation; .
1-connection in series-parallel brace; 3-housing; 11-jog; 12-through hole; 31-negative pole pole; 32-pad; 33-insulating trip; 34-end casing; 35-liquid injection hole; Hole, 36-chassis; 37-positive pole joint pin; 38-boss.
Embodiment
By describing technology contents of the present invention, structural feature in detail, realized object and effect, accompanying drawing is coordinated to be explained in detail below in conjunction with execution mode.
Refer to Fig. 1-3, the invention provides a kind of power-type lithium ion battery group, it includes connection in series-parallel brace 1 and multiple battery core.Described battery core comprises housing 3, positive pole joint pin 37, end casing 34 and negative pole pole 31.
Wherein, the housing 3 of battery core, in tubular, can be cylindric or square tubbiness according to actual needs.Housing 3 one end is closed, and the adaptive described end casing 34 of the other end seals.The one end closed in housing 3 is provided with hole, chassis 36 and liquid injection hole 35, and one end that housing 3 is closed arranges described positive pole joint pin 37 outside liquid injection hole 35.And on end casing 34, normally middle part be provided with through hole, through hole is socketed described negative pole pole 31.
And after multiple battery core with above-mentioned feature puts together, by arranging connection in series-parallel brace 1 between its positive pole joint pin 37 and negative pole pole 31, and then realize the serial or parallel connection between multiple battery core, form battery pack.
Conveniently above-mentioned connection in series-parallel, the corresponding negative pole pole 31 of connection in series-parallel brace 1 and positive pole joint pin 37 are equipped with through hole 12.The negative pole pole 31 of series-parallel monomer battery core will be configured for series-parallel connection in series-parallel brace 1 and rivet fixing with self end casing 34, the connection in series-parallel brace 1 of another pole to be then socketed on positive pole joint pin 37 and to weld with it, completes series-parallel connection between multiple battery core thus.
Corresponding, present invention also offers a kind of manufacture method of power-type lithium ion battery group of supporting above-mentioned power-type lithium ion battery group structure, it comprises step:
A), get the housing of multiple battery core, arrange the blind end of housing by the demand of series/parallel and be sealed with the direction of end casing end, and the housing of multiple battery core is arranged side by side;
B), according to the demand of series/parallel arrange connection in series-parallel brace in the shell end of adjacent battery core placed side by side, described connection in series-parallel brace correspondence is socketed in negative pole pole;
C), negative pole pole, connection in series-parallel brace and end casing are riveted; Positive pole joint pin on the blind end of the housing of battery core is welded with connection in series-parallel brace;
D), by liquid injection hole on the blind end of the housing of battery core to fluid injection in housing.
As fully visible, the invention provides a kind of power-type lithium ion battery group structure and manufacture method, this high reliability technological means of riveted joint is effectively implemented in the assembling of battery pack, by while the sealing riveting between negative pole pole and end cap along the mode being with the connection in series-parallel plate of connection in series-parallel being assembled riveting in the lump, namely when cell has not all manufactured, connection in series-parallel connection has been assembled, namely reduce the production cost of battery pack, be improved reliability and production efficiency.
Following table shows the contrast of the pluses and minuses of several coupling method.
Usually, in above-mentioned power-type lithium ion battery group structure, negative pole pole 31 can be formed with a circle boss 38 in riveting process, connection in series-parallel brace 1 and end casing 34 described in this boss 38 pressing.Best, between the boss 38 and connection in series-parallel brace 1 of described negative pole pole 31, be also provided with pad 32.
Corresponding, in the step C of the manufacture method of above-mentioned power-type lithium ion battery group, first on connection in series-parallel brace 1, pad 32 is placed, and then anticathode pole 31 applies rivet force, negative pole pole 31 is under the riveting pressure of high pressure, and the outer rim of negative pole pole is extruded, and squeezed splenium external diameter diminishes, lower outer diameter becomes large thus and forms boss 38, thus produces pressure by connection in series-parallel brace 1, pad 32 and end casing 34 pressing formation riveted joint.
Preferably, in above-mentioned power-type lithium ion battery group structure, insulating trip 33 between negative pole pole 31 and end casing 34, is provided with.And the cross section of negative pole pole 31 is in T shape, the cross section of insulating trip 33 is I-shaped, the insulating trip 33 of I-shaped cross-section is socketed in the through hole of end casing 34, insulating trip 33 hollow socket negative pole pole 31, the wider one end of negative pole pole 31 is positioned at inside housing 3, and this end outside dimension is greater than insulating trip 33 perforate, and then make negative pole pole 31 can be used as a rivet use, connection in series-parallel brace 1, end casing 34, pad 32 and insulating trip 33 are riveted.
To should structure, also step is comprised: be I-shaped insulating trip by being socketed cross section in the through hole of end casing before the steps A of the manufacture method of above-mentioned power-type lithium ion battery group, insulating trip hollow, the negative pole pole in T-shaped cross section is passed insulating trip hollow bulb by enclosure interior, the wider one end of negative pole pole is positioned at case inside, and this end outside dimension is greater than insulating trip perforate, then end casing is sealed in the openend of housing.Continuing the subsequent step of manufacture method, complete riveted joint.
Preferably, in above-mentioned power-type lithium ion battery group structure, described connection in series-parallel brace 1 is formed with jog 11 between adjacent housings 3, this jog 11 has cushioning effect, when can prevent the vibration of battery on automobile, and the pulling force (tension force) that connection in series-parallel brace is directly excessive to the pole leave of absence, after adding this jog 11, when vibration is too fierce, excessive pulling force (tension force) can be stretching by jog, thus can not cause damage to pole.This jog is formed the bending of connection in series-parallel brace by manufacture method.
Based on technical scheme provided by the invention, particularly structural riveting technology is conducive to solving copper-aluminium transition problem in many battery cores connection in series-parallel connection procedure, so-called copper-aluminium transition problem and the usual positive pole joint pin of ordinary lithium ion battery be aluminium, negative pole joint pin be copper, if coupled in series, connection in series-parallel brace aluminium or copper, copper all can be caused to contact with the direct of aluminium, cause copper-aluminium transition, namely the contact-making surface of copper and aluminium produces albronze layer, this alloy-layer is insulator, the resistance of the contact-making surface of copper and aluminium becomes large thus, electric current is finally caused to pass through and to disconnect.And in the technology of the present invention, just, negative pole pole can be still made up of aluminium or copper product, connection in series-parallel brace is same available aluminium or the metal such as copper or nickel then, but preferably conductance is high, the aluminium flake that price is low, when the connection in series-parallel brace of aluminium is connected with the negative pole pole of copper, nickel-plated copper material selected by the pad of negative pole pole, the negative pole pole column riveting face of copper is pressed on the pad of nickel-clad copper, the pad of nickel-clad copper is pressed on the connection in series-parallel brace of aluminium, rivet between a few person, such nickel coating contacts with the connection in series-parallel brace of aluminium, avoid copper to contact with the direct of aluminium, thus avoid the problem of the copper-aluminium transition caused.
Power-type lithium ion battery group of the present invention is suitable for battery cell manufacture after the first assembling of the battery core of square housing equally.
By said structure, the feature that after power-type lithium ion battery group of the present invention has first assembling, battery cell manufactures, it can be widely used in the dyad be connected in parallel by two cells, or make the triplet that three cells are connected in parallel, even tetrad is even more applied.As Fig. 3 be exactly after 2 groups of 3 cell parallel connections again series connection form the signal of power-type lithium ion battery group.
Battery combination manufactures specific embodiment:
For electric bus: total voltage requires 576 V, capacity requirement 80 ampere-hour (Ah), this needs 180 groups of ferric phosphate lithium type batteries to carry out coupled in series to reach, for the capacity of 80Ah, can be reached by the parallel connection of 2 40Ah cells, actual enforcement, battery system is changed in employing, connect by three chest serial battery, each chest 192V (needing 60 groups of ferric phosphate lithium type batteries to carry out coupled in series to reach), 80 ampere-hours, i.e. 16 degree of electricity, reached by the parallel connection of 2 40Ah cells, box sizes is: 348mm × 552mm × 830mm, battery placement space: 308mm × 512mm × 745mm can be supplied, plan selects diameter to be 55mm, it is highly the cylindrical battery of 245mm, model is decided to be: 55245, cell capacity is 40Ah, for 308mm, intend placement five layers of battery, overall size 55*5=275mm, the space of 308mm can be put into, for 512mm, two rows are placed with 245mm, overall size 490mm, the space of 512mm can be put into, for 745mm, intend placement 12 and arrange battery, overall size 55*12=660mm, the space of 745mm can be put into, so total placing battery sum: arrange * 12 for five layer * two and arrange=120 batteries, this illustrates model 55245, 40 shell 3 ampere-hour column batteries, after two parallel connections again 60 groups be connected in series, namely requirement is reached, the present embodiment takes the negative pole end cap of two monocells first to rivet with brace, brace separately stretches out 110 millimeters long (be ready to use in and be connected in series with another two good battery pack in parallel), the manufacture completing two cells again (comprises the manufacture of both positive and negative polarity pole piece, coiling body is wound into again together with barrier film, weld with anode end cap again, the negative pole of riveting with brace again welds, two negative pole end caps of being riveted by brace respectively again and aluminium cylindrical shell (include coiling body, end cap etc.) laser welding is integrated).The battery pack that mode carries out 60 groups of two parallel connections good is thus connected in series, reach voltage request 192 V, capacity 80 ampere-hour (Ah), 16 degree of electricity, the i.e. requirement on electric performance of a battery case, reach that electric bus total voltage requires by the series connection of three such battery cases again 576 V, 80 ampere-hours (Ah) of capacity.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (9)
1. a power-type lithium ion battery group, is characterized in that: it comprises connection in series-parallel brace and multiple battery core;
Described battery core comprises housing, positive pole joint pin, end casing and negative pole pole; Wherein, housing is tubular, and shell one end is closed, the adaptive described end casing sealing of the other end; Be provided with hole, chassis and liquid injection hole in one end of housings close, described liquid injection hole peripheral hardware has described positive pole joint pin, is provided with through hole in described end casing, and through hole is socketed with described negative pole pole;
The positive pole joint pin of described multiple battery core and negative pole pole are connected by connection in series-parallel brace and realize serial or parallel connection, and the corresponding negative pole pole of described connection in series-parallel brace and positive pole joint pin are equipped with through hole; Described connection in series-parallel brace and end casing riveted joint are fixed by described negative pole pole; Described connection in series-parallel brace to be socketed on positive pole joint pin and to weld with it;
Insulating trip is provided with between described negative pole pole and end casing; The cross section of described negative pole pole is in T shape, the cross section of described insulating trip is I-shaped, and the insulating trip of I-shaped cross-section is socketed in the through hole of end casing, insulating trip hollow socket negative pole pole, the wider one end of negative pole pole is positioned at case inside, and this end outside dimension is greater than insulating trip perforate.
2. power-type lithium ion battery group as claimed in claim 1, is characterized in that: described negative pole pole is formed with connection in series-parallel brace and end casing described in a circle boss pressing in riveting process; Also pad is provided with between the boss of described negative pole pole and connection in series-parallel brace.
3. power-type lithium ion battery group as claimed in claim 2, is characterized in that: described negative pole pole is made up of copper or aluminum; Described connection in series-parallel brace is made up of aluminium or copper or nickel material; Described pad is made up of nickel-plated copper material.
4. the power-type lithium ion battery group as described in claim 1-3 any one, is characterized in that: described connection in series-parallel brace is formed with jog between adjacent housings.
5. a power-type lithium ion battery group manufacture method, is characterized in that: it comprises step,
A), get the housing of multiple battery core, arrange the blind end of housing by the demand of series/parallel and be sealed with the direction of end casing end, and the housing of multiple battery core is arranged side by side;
B), according to the demand of series/parallel arrange connection in series-parallel brace in the shell end of adjacent battery core placed side by side, described connection in series-parallel brace correspondence is socketed in negative pole pole;
C), negative pole pole, connection in series-parallel brace and end casing are riveted; Positive pole joint pin on the blind end of the housing of battery core is welded with connection in series-parallel brace;
D), by liquid injection hole on the blind end of the housing of battery core to fluid injection in housing.
6. power-type lithium ion battery group manufacture method as claimed in claim 5, it is characterized in that: in described step C, pad placed by connection in series-parallel brace, and then negative pole pole is under the riveting pressure of high pressure, the outer rim of negative pole pole is extruded, squeezed splenium external diameter diminishes, and lower outer diameter becomes large thus, thus produces pressure by connection in series-parallel brace, pad and end casing pressing formation riveted joint.
7. power-type lithium ion battery group manufacture method as claimed in claim 6, is characterized in that: described negative pole pole is made up of copper or aluminum; Described connection in series-parallel brace is made up of aluminium or copper or nickel material; Described pad is made up of nickel-plated copper material.
8. power-type lithium ion battery group manufacture method as claimed in claim 5, is characterized in that: the cross section of described negative pole pole is in T shape; Also step is comprised before described steps A, be I-shaped insulating trip by being socketed cross section in the through hole of end casing, insulating trip hollow, the negative pole pole in T-shaped cross section is passed insulating trip hollow bulb by enclosure interior, the wider one end of negative pole pole is positioned at case inside, and this end outside dimension is greater than insulating trip perforate, then end casing is sealed in the openend of housing.
9. the power-type lithium ion battery group manufacture method as described in claim 5-8 any one, is characterized in that: described connection in series-parallel brace is formed with jog by bending between adjacent cell.
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| CN201310156139.0A CN103311490B (en) | 2013-04-28 | 2013-04-28 | Power-type lithium ion battery group and manufacture method thereof |
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| CN104900920B (en) * | 2015-04-27 | 2018-04-27 | 中国直升机设计研究所 | A kind of 200kg grades of electric drive unmanned helicopter power battery pack |
| JP6950201B2 (en) * | 2016-04-25 | 2021-10-13 | 株式会社Ｇｓユアサ | Power storage element |
| JP2017199652A (en) * | 2016-04-25 | 2017-11-02 | 株式会社Ｇｓユアサ | Energy storage element |
| CN109103371A (en) * | 2018-07-13 | 2018-12-28 | 湖北锂诺新能源科技有限公司 | A kind of battery pack installation assembly |
| CN109449331B (en) * | 2018-09-30 | 2021-07-30 | 临泉县赛莱斯农用车有限公司 | Electric motor car battery connection structure |
| CN110931903A (en) * | 2019-11-14 | 2020-03-27 | 深圳市普兰德储能技术有限公司 | Method for repairing waste power battery module |
| CN113394507A (en) * | 2021-07-21 | 2021-09-14 | 星恒电源股份有限公司 | Cylindrical battery pack and pack method |
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| KR101108180B1 (en) * | 2009-11-24 | 2012-02-06 | 삼성에스디아이 주식회사 | Battery pack and assembly of battery pack for large capacity power |
| KR101283347B1 (en) * | 2010-09-07 | 2013-07-10 | 주식회사 엘지화학 | High-Output, Large-Capacity Battery Pack |
| CN203242691U (en) * | 2013-04-28 | 2013-10-16 | 潘珊 | Dynamic lithium ion battery pack |
-
2013
- 2013-04-28 CN CN201310156139.0A patent/CN103311490B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201601180U (en) * | 2009-12-31 | 2010-10-06 | 上海汽车集团股份有限公司 | Press-in connecting piece for connecting single batteries and battery pack by adopting same |
| CN201623213U (en) * | 2010-04-19 | 2010-11-03 | 湖南业翔晶科新能源有限公司 | Round-cell square-shell lithium ion secondary battery |
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| CN103311490A (en) | 2013-09-18 |
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