CN109037787A - A kind of manufacturing method of new-energy automobile Li-ion batteries piles structure and its 18650 batteries - Google Patents

A kind of manufacturing method of new-energy automobile Li-ion batteries piles structure and its 18650 batteries Download PDF

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Publication number
CN109037787A
CN109037787A CN201811040184.9A CN201811040184A CN109037787A CN 109037787 A CN109037787 A CN 109037787A CN 201811040184 A CN201811040184 A CN 201811040184A CN 109037787 A CN109037787 A CN 109037787A
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China
Prior art keywords
battery
new
energy automobile
battery case
ion batteries
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Granted
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CN201811040184.9A
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Chinese (zh)
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CN109037787B (en
Inventor
丁安莉
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Yongxin County Dajian Energy Co.,Ltd.
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Guangdong New Lingjia New Energy Ltd By Share Ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/058Construction or manufacture
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/61Types of temperature control
    • H01M10/613Cooling or keeping cold
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/62Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625Vehicles
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/655Solid structures for heat exchange or heat conduction
    • H01M10/6551Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/655Solid structures for heat exchange or heat conduction
    • H01M10/6556Solid parts with flow channel passages or pipes for heat exchange
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/656Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561Gases
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00Batteries for particular applications
    • H01M2220/20Batteries in motive systems, e.g. vehicle, ship, plane
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Mounting, Suspending (AREA)
  • Secondary Cells (AREA)

Abstract

The invention discloses a kind of new-energy automobile Li-ion batteries piles structures, including casing, embedding groove is equipped on the outside of the casing, the embedding groove nested inside is equipped with heat exchange unit, the casing includes bottom plate, outer housing and inner housing, the first thermal conductive cavity is equipped between the outer housing and inner housing, through equipped with the first thermal hole on the inner housing, multiple bindiny mechanisms are fixed on the inner housing inner wall, the bindiny mechanism end is fixed with installation shell, the installation enclosure interior is equipped with multiple battery cavities and inner wall is equipped with limiting slot, barrier mechanism is equipped between the battery cavities.The present invention has good heat-sinking capability and self-protection effect; the fever phenomenon of course of work generation can be successfully managed and jolting of avoiding that new-energy automobile generates during traveling acts on 18650 batteries; Li-ion batteries piles in technology compared to the prior art; design performance of the present invention is more superior, has longer service life.

Description

A kind of manufacture of new-energy automobile Li-ion batteries piles structure and its 18650 batteries Method
Technical field
The present invention relates to new energy car battery technical field, in particular to a kind of new-energy automobile Li-ion batteries piles knot The manufacturing method of structure and its 18650 batteries.
Background technique
Lithium ion battery is a kind of secondary cell, i.e. rechargeable battery, it rely primarily on lithium ion anode and cathode it Between it is mobile come work, in charge and discharge process, lithium ion insertion and deintercalation back and forth between two electrodes, when charging, lithium ion From positive deintercalation, cathode is embedded in by electrolyte, and cathode is in lithium-rich state, and when electric discharge is then opposite.
Lithium system battery is divided into lithium battery and lithium ion battery, and what mobile phone and laptop used is all lithium ion battery, And lithium ion battery includes Multiple Type, 18650 be one of which, and 18650 batteries generally use the material containing elemental lithium It is the representative of modern high performance battery as electrode, and with the development of science and technology, is used for electric car or hybrid vehicle 18650 batteries of equal new-energy automobiles are also gradually developed, in the prior art, for new energy such as electric car or hybrid powers 18650 batteries of automobile are used generally by the way of battery pack, and these battery packs in actual use there is also Some disadvantages, as its can not the operating status to automobile effectively adapted to, that is, require the battery pack needs of 18650 battery compositions Possess good heat-sinking capability and self-protection effect.
Therefore, the manufacturing method of a kind of new-energy automobile Li-ion batteries piles structure and its 18650 batteries is invented to solve The above problem is necessary.
Summary of the invention
The purpose of the present invention is to provide the manufactures of a kind of new-energy automobile Li-ion batteries piles structure and its 18650 batteries Method, have good heat-sinking capability and self-protection effect, can successfully manage the course of work generation fever phenomenon with And jolting of avoiding that new-energy automobile generates during traveling acts on 18650 batteries, compared to the prior art in technology Li-ion batteries piles, the present invention design it is more reasonable, performance is more superior, have longer service life, it is above-mentioned to solve The problem of being proposed in background technique.
To achieve the above object, the invention provides the following technical scheme: a kind of new-energy automobile Li-ion batteries piles structure, Including casing, embedding groove is equipped on the outside of the casing, the embedding groove nested inside is equipped with heat exchange unit, and the casing includes bottom Plate, outer housing and inner housing are equipped with the first thermal conductive cavity between the outer housing and inner housing, through being equipped with the on the inner housing One thermal hole is fixed with multiple bindiny mechanisms on the inner housing inner wall, and the bindiny mechanism end is fixed with mounting shell Body, the installation enclosure interior is equipped with multiple battery cavities and inner wall is equipped with limiting slot, is equipped with barrier between the battery cavities Mechanism.
Preferably, the outer housing and inner housing are fixed at the top of bottom plate, and the inner housing is set on the inside of outer housing.
Preferably, the heat exchange unit is equipped with multiple, and the heat exchange unit is set as cooling piece, and the cooling piece includes inhaling Hot face and radiating surface, the heat-absorbent surface are bonded with embedding groove inner wall.
Preferably, the bindiny mechanism includes the first connecting plate and the second connecting plate, and second connecting plate is set to first Connecting plate bottom is equipped with connecting spring between first connecting plate and the second connecting plate.
Preferably, described connecting spring one end is fixedly connected with the first connecting plate and the other end is fixed with the second connecting plate Connection.
Preferably, first connecting plate is fixedly connected with inner housing, second connecting plate and the fixed company of installation shell It connects.
Preferably, the barrier mechanism includes baffler, and the baffler is matched with limiting slot, the baffler side wall Upper to be equipped with the second thermal conductive cavity through equipped with the second thermal hole and top, second thermal hole is equipped with multiple, and multiple second lead Hot hole is connected to the second thermal conductive cavity.
Preferably, the cabinet top is equipped with top cover, and both ends, which are run through, at the top of the top cover is equipped with screw, and the top cover passes through Screw is detachably connected with casing, and the bottom base plate is equipped with buffer board, and the buffer board is made of rubber.
Preferably, 18650 batteries are equipped with inside the battery cavities, the 18650 battery outer wall is equipped with Dentate groove, described 18650 batteries include battery case, 18650 battery cores and protection circuit plate, 18650 battery core include anode, cathode, diaphragm and Electrolyte, the Dentate groove be set to battery case on, the positive electrode, the negative electrode and the separator is set to inside battery case, it is described every Film is set between positive electrode and negative electrode, and the electrolyte is filled between the positive electrode, the negative electrode and the separator and battery case.
The present invention also provides a kind of manufacturing methods of 18650 battery of new-energy automobile, specifically includes the following steps:
Step 1: the PVC material first in molding die under addition molten condition, progress battery case and Dentate groove It is integrally formed, it is three to five hours cooling after the completion of pouring, so that molding die and battery case is cooled down, then removes molding die, Battery case is taken out;
Step 2: the positive electrode, the negative electrode and the separator is assembled, so that diaphragm is between positive electrode and negative electrode, then by group The positive electrode, the negative electrode and the separator installed is installed to inside battery case;
Step 3: electrolyte is added inside battery case, so that electrolyte is by the positive electrode, the negative electrode and the separator and battery case Between gap completely fill out;
Step 4: protection circuit plate is installed to outside battery case, and protection circuit plate and 18650 battery cores are carried out electricity Connection;
Step 5: encapsulation.
Technical effect and advantage of the invention:
1, when heating up in 18650 cell operations inside the battery cavities, since to be equipped with second thermally conductive for baffler side wall Hole and top are equipped with the second thermal conductive cavity, therefore the air inside the second thermal conductive cavity will pass through the second thermal hole and 18650 electricity Pool surface is contacted, to exchange heat with 18650 batteries, is cooled down for 18650 batteries, and simultaneously in the second thermal conductive cavity The hot-air in portion can be scattered to casing internal by overflowing at the top of the second thermal conductive cavity, what 18650 batteries were given out by installing housing exterior walls Heat can equally enter in casing, and be entered in the first thermal conductive cavity by passing through the first thermal hole in casing, and outer housing is first It heats up under the action of hot-air in thermal conductive cavity, then the one side of heat exchange unit heat absorption again can siphon away the heat on outer housing, from And invention is cooled down by the mode repeatedly to exchange heat for 18650 batteries, so that the present invention has good heat dissipation Effect, when the barrier mechanism being fixedly connected with inner housing and installation shell can then make the present invention jolt, to install shell Good buffer function is played, the power for the generation that avoids jolting acts directly on 18650 batteries, to provide for 18650 batteries Good protective effect;
2, barrier mechanism can be effectively reduced with the first thermal conductive cavity in the second thermal conductive cavity while playing a role and casing is whole The weight of body, so that overall weight of the invention is reduced, in order to more convenient in installation, disassembly and the carrying present invention;
3, by being set as Dentate groove on battery case surface in order to increase the surface area of battery case, so that The heat dissipation effect that 18650 batteries itself have is more preferable.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is installation enclosure interior structural schematic diagram of the invention.
Fig. 3 is baffler side structure schematic view of the invention.
Fig. 4 is bindiny mechanism's structural schematic diagram of the invention.
Fig. 5 is whole side structure schematic view of the invention.
Fig. 6 is 18650 battery structure schematic diagrames of the invention.
In figure: 1 casing, 2 embedding grooves, 3 heat exchange units, 4 bottom plates, 5 outer housings, 6 inner housings, 7 first thermal conductive cavities, 8 first It is thermal hole, 9 bindiny mechanisms, 10 installation shells, 11 battery cavities, 12 limiting slots, 13 barrier mechanisms, 14 bafflers, 15 second thermally conductive Hole, 16 second thermal conductive cavities, 17 first connecting plates, 18 second connecting plates, 19 connecting springs, 20 top covers, 21 screws, 22 buffer boards, 23 18650 batteries, 24 Dentate grooves.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
The present invention provides a kind of new-energy automobile Li-ion batteries piles structure as shown in figures 1 to 6, including casing 1, institutes It states and is equipped with embedding groove 2 on the outside of casing 1,2 nested inside of embedding groove is equipped with heat exchange unit 3, and the casing 1 includes bottom plate 4, outer Shell 5 and inner housing 6 are equipped with the first thermal conductive cavity 7, run through on the inner housing 6 and be equipped between the outer housing 5 and inner housing 6 First thermal hole 8 is fixed with multiple bindiny mechanisms 9 on 6 inner wall of inner housing, and 9 end of bindiny mechanism is fixed with Shell 10 is installed, multiple battery cavities 11 are equipped with inside the installation shell 10 and inner wall is equipped with limiting slot 12, the battery Barrier mechanism 13 is equipped between chamber 11.
As can be seen from the above embodiments: when heating up in 18650 battery, 23 course of work inside battery cavities 11, due to barrier 14 side wall of plate is equipped with the second thermal hole 15 and top is equipped with the second thermal conductive cavity 16, therefore the air inside the second thermal conductive cavity 16 is just It can be contacted by 23 surface of the second battery of thermal hole 15 and 18650, be 18650 to exchange heat with 18650 batteries 23 Battery 23 cools down, and the hot-air inside the second thermal conductive cavity 16 can be scattered to casing 1 by overflowing at the top of the second thermal conductive cavity 16 simultaneously Inside, 18650 batteries 23 can equally be entered in casing 1 by installing the heat that 10 outer wall of shell gives out, and by wearing in casing 1 It crosses the first thermal hole 8 to enter in the first thermal conductive cavity 7, outer housing 5 heats up under the action of hot-air in the first thermal conductive cavity 7, so The one side that heat exchange unit 3 absorbs heat afterwards again can siphon away the heat on outer housing 5, so that the mode repeatedly to exchange heat is passed through in invention Cool down for 18650 batteries 23, so that the present invention has good heat dissipation effect, with inner housing 6 and installation shell 10 When the barrier mechanism 13 being fixedly connected with can then make the present invention jolt, good buffer function is played for installation shell 10, The power of generation of avoiding jolting acts directly on 18650 batteries 23, to provide good protective effect for 18650 batteries 23.
Embodiment 2
Further, in above-described embodiment 1, the outer housing 5 is fixed at 4 top of bottom plate with inner housing 6, described Inner housing 6 is set to 5 inside of outer housing.
Further, in above-described embodiment 1, the heat exchange unit 3 be equipped with it is multiple, the heat exchange unit 3 is set as making Cold, the cooling piece includes heat-absorbent surface and radiating surface, and the heat-absorbent surface is bonded with 2 inner wall of embedding groove.
Further, in above-described embodiment 1, the bindiny mechanism 9 includes the first connecting plate 17 and the second connecting plate 18, Second connecting plate 18 is set to 17 bottom of the first connecting plate, the company of being equipped between first connecting plate 17 and the second connecting plate 18 Spring 19 is connect, plays good buffer function for installation shell 10, the power for the generation that avoids jolting acts directly on 18650 batteries 23 On, to provide good protective effect for 18650 batteries 23.
Further, in above-described embodiment 1, described 19 one end of connecting spring be fixedly connected with the first connecting plate 17 and The other end is fixedly connected with the second connecting plate 18.
Further, in above-described embodiment 1, first connecting plate 17 is fixedly connected with inner housing 6, and described second connects Fishplate bar 18 is fixedly connected with installation shell 10.
Further, in above-described embodiment 1, the barrier mechanism 13 includes baffler 14, the baffler 14 and limit Position slot 12 matches, and is equipped with the second thermal conductive cavity 16 through equipped with the second thermal hole 15 and top on 14 side wall of baffler, Second thermal hole 15 be equipped with it is multiple, multiple second thermal holes 15 are connected to the second thermal conductive cavity 16.
Further, in above-described embodiment 1, top cover 20 is equipped at the top of the casing 1, the 20 top both ends of top cover are passed through It is equipped with screw 21, the top cover 20 is detachably connected by screw 21 with casing 1, and 4 bottom of bottom plate is equipped with buffer board 22, The buffer board 22 is made of rubber, in order to play certain cushioning effect.
Further, in above-described embodiment 1,18650 batteries 23,18650 electricity are equipped with inside the battery cavities 11 23 outer wall of pond is equipped with Dentate groove 24, and 18650 battery 23 includes battery case, 18650 battery cores and protection circuit plate, described 18650 battery cores include anode, cathode, diaphragm and electrolyte, and the Dentate groove 24 is set on battery case, the anode, cathode It is set to inside battery case with diaphragm, the diaphragm is set between positive electrode and negative electrode, and the electrolyte is filled in anode, cathode Between diaphragm and battery case.
Embodiment 3
The present invention also provides a kind of manufacturing methods of 18650 battery of new-energy automobile, specifically includes the following steps:
Step 1: the PVC material under molten condition is added first in molding die, carries out battery case and Dentate groove 24 Integrated molding, cooling three to five hours after the completion of pouring, so that molding die and battery case is cooled down, then remove shaping mould Tool, battery case is taken out;
Step 2: the positive electrode, the negative electrode and the separator is assembled, so that diaphragm is between positive electrode and negative electrode, then by group The positive electrode, the negative electrode and the separator installed is installed to inside battery case;
Step 3: electrolyte is added inside battery case, so that electrolyte is by the positive electrode, the negative electrode and the separator and battery case Between gap completely fill out, formed 18650 battery cores;
Step 4: protection circuit plate is installed to outside battery case, and protection circuit plate and 18650 battery cores are carried out electricity Connection;
Step 5: encapsulation.
Working principle of the present invention:
Referring to the heat exchange unit 3 that Figure of description 1, attached drawing 2, attached drawing 3 and 4,18650 battery 23 of attached drawing are in embedding groove 2 It is powered, when heating up in 18650 battery, 23 course of work inside battery cavities 11, since 14 side wall of baffler is equipped with second Thermal hole 15 and top are equipped with the second thermal conductive cavity 16, therefore the air inside the second thermal conductive cavity 16 will pass through the second thermal hole 15 are contacted with 18650 battery, 23 surface, to exchange heat with 18650 batteries 23, are cooled down for 18650 batteries 23, And the hot-air inside the second thermal conductive cavity 16 can be scattered to inside casing 1 by overflowing at the top of the second thermal conductive cavity 16 simultaneously, 18650 batteries 23 Can be entered in casing 1 by installing the heat that gives out of 10 outer wall of shell equally, and by passed through in casing 1 first thermal hole 8 into Enter into the first thermal conductive cavity 7, outer housing 5 heats up under the action of hot-air in the first thermal conductive cavity 7, and then heat exchange unit 3 absorbs heat One side the heat on outer housing 5 can be siphoned away again so that invention by the mode that repeatedly exchanges heat be 18650 batteries 23 into Row cooling, so that the present invention has good heat dissipation effect, the barrier being fixedly connected with inner housing 6 and installation shell 10 When mechanism 13 can then make the present invention jolt, good buffer function is played for installation shell 10, the power for the generation that avoids jolting It acts directly on 18650 batteries 23, to provide good protective effect for 18650 batteries 23;
Referring to Figure of description 1 and attached drawing 2, the second thermal conductive cavity 16 and the first thermal conductive cavity 7 can be with while playing a role The weight of 1 entirety of barrier mechanism 13 and casing is effectively reduced, so that overall weight of the invention is reduced, in order to install, tearing open It unloads and carries and is more convenient when the present invention;
Referring to Figure of description 6, increase battery case by being set as Dentate groove 24 on battery case surface Surface area, so that the heat dissipation effect that 18650 batteries 23 have in itself is more preferable.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention, Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features, All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention Within protection scope.

Claims (10)

1. a kind of new-energy automobile Li-ion batteries piles structure, including casing (1), it is characterised in that: set on the outside of the casing (1) Have embedding groove (2), embedding groove (2) nested inside is equipped with heat exchange unit (3), and the casing (1) includes bottom plate (4), shell Body (5) and inner housing (6) are equipped with the first thermal conductive cavity (7) between the outer housing (5) and inner housing (6), the inner housing (6) Above through the first thermal hole (8) are equipped with, it is fixed with multiple bindiny mechanisms (9) on inner housing (6) inner wall, the connection machine Structure (9) end is fixed with installation shell (10), is equipped with multiple battery cavities (11) and inner wall inside the installation shell (10) It is equipped with limiting slot (12), barrier mechanism (13) is equipped between the battery cavities (11).
2. a kind of new-energy automobile Li-ion batteries piles structure according to claim 1, it is characterised in that: the outer housing (5) it is fixed at inner housing (6) at the top of bottom plate (4), the inner housing (6) is set on the inside of outer housing (5).
3. a kind of new-energy automobile Li-ion batteries piles structure according to claim 1, it is characterised in that: the heat exchange is single First (3) are equipped with multiple, and the heat exchange unit (3) is set as cooling piece, and the cooling piece includes heat-absorbent surface and radiating surface, the suction Hot face is bonded with embedding groove (2) inner wall.
4. a kind of new-energy automobile Li-ion batteries piles structure according to claim 1, it is characterised in that: the connection machine Structure (9) includes the first connecting plate (17) and the second connecting plate (18), and second connecting plate (18) is set to the first connecting plate (17) Bottom is equipped with connecting spring (19) between first connecting plate (17) and the second connecting plate (18).
5. a kind of new-energy automobile Li-ion batteries piles structure according to claim 4, it is characterised in that: the connection bullet Spring (19) one end is fixedly connected with the first connecting plate (17) and the other end is fixedly connected with the second connecting plate (18).
6. a kind of new-energy automobile Li-ion batteries piles structure according to claim 4, it is characterised in that: described first connects Fishplate bar (17) is fixedly connected with inner housing (6), and second connecting plate (18) is fixedly connected with installation shell (10).
7. a kind of new-energy automobile Li-ion batteries piles structure according to claim 1, it is characterised in that: the barrier machine Structure (13) includes baffler (14), and the baffler (14) matches with limiting slot (12), is passed through on baffler (14) side wall Be equipped with the second thermal hole (15) and top and be equipped with the second thermal conductive cavity (16), second thermal hole (15) be equipped with it is multiple, it is more A second thermal hole (15) is connected to the second thermal conductive cavity (16).
8. a kind of new-energy automobile Li-ion batteries piles structure according to claim 1, it is characterised in that: the casing (1) top is equipped with top cover (20), and both ends, which are run through, at the top of the top cover (20) is equipped with screw (21), and the top cover (20) passes through screw (21) it is detachably connected with casing (1), bottom plate (4) bottom is equipped with buffer board (22), and the buffer board (22) is by rubber system At.
9. a kind of new-energy automobile Li-ion batteries piles structure according to claim 1, it is characterised in that: the battery cavities (11) internal to be equipped with 18650 batteries (23), 18650 battery (23) outer wall is equipped with Dentate groove (24), 18650 battery It (23) include battery case, 18650 battery cores and protection circuit plate, 18650 battery core includes anode, cathode, diaphragm and electrolysis Liquid, the Dentate groove (24) be set to battery case on, the positive electrode, the negative electrode and the separator is set to inside battery case, it is described every Film is set between positive electrode and negative electrode, and the electrolyte is filled between the positive electrode, the negative electrode and the separator and battery case.
10. a kind of manufacturing method of 18650 battery of new-energy automobile, which is characterized in that specifically includes the following steps:
Step 1: the PVC material under molten condition is added first in molding die, carries out battery case and Dentate groove (24) It is integrally formed, it is three to five hours cooling after the completion of pouring, so that molding die and battery case is cooled down, then removes molding die, Battery case is taken out;
Step 2: the positive electrode, the negative electrode and the separator is assembled, so that diaphragm between positive electrode and negative electrode, then will assemble The positive electrode, the negative electrode and the separator be installed to inside battery case;
Step 3: electrolyte is added inside battery case, so that electrolyte will be between the positive electrode, the negative electrode and the separator and battery case Gap completely fill out, formed 18650 battery cores;
Step 4: protection circuit plate is installed to outside battery case, and protection circuit plate and 18650 battery cores are electrically connected It connects;
Step 5: encapsulation.
CN201811040184.9A 2018-09-07 2018-09-07 New energy automobile lithium ion battery pack structure and 18650 battery manufacturing method thereof Active CN109037787B (en)

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
CN109860461A (en) * 2019-01-22 2019-06-07 欣旺达电子股份有限公司 The preparation method of battery case, battery and battery case
CN112713310A (en) * 2020-12-22 2021-04-27 惠州市永能电子有限公司 Efficient lithium battery production process and lithium battery
CN113611965A (en) * 2021-07-21 2021-11-05 东莞力朗电池科技有限公司 Cylindrical lithium ion battery with protection mechanism
WO2022088006A1 (en) * 2020-10-30 2022-05-05 张新华 Battery installation and fixing structure for electric vehicle

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