CN108598354A - A kind of multi pole ears battery core, multi-terminal battery, battery modules and preparation method thereof - Google Patents
A kind of multi pole ears battery core, multi-terminal battery, battery modules and preparation method thereof Download PDFInfo
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- CN108598354A CN108598354A CN201810609701.3A CN201810609701A CN108598354A CN 108598354 A CN108598354 A CN 108598354A CN 201810609701 A CN201810609701 A CN 201810609701A CN 108598354 A CN108598354 A CN 108598354A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
- H01M10/0409—Machines for assembling batteries for cells with wound electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0431—Cells with wound or folded electrodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention belongs to power battery technology fields, more particularly to a kind of multi pole ears battery core, include the battery core formed by winding or lamination by positive plate, diaphragm and negative plate, the positive plate both sides are provided with several corresponding anode ears, and the negative plate both sides are provided with several corresponding negative electrode lugs；The anode ear group of battery core both sides is formed after the anode ear of the positive plate both sides is rolled or lamination；The negative electrode lug group of battery core both sides is formed after the negative electrode lug of negative plate both sides is rolled or lamination.Both sides of the present invention are provided with multiple lugs, and are wound by multiple lugs or lamination forms lug group, reduce battery core internal resistance, enhance the conveyance capacity of battery core, while also reducing the thickness of battery core, improve the heat-sinking capability of battery, enhance the safety of battery.In addition, the invention also discloses a kind of multi-terminal batteries, battery modules and preparation method thereof.
Description
Technical field
The invention belongs to power battery technology field, more particularly to a kind of multi pole ears battery core, multi-terminal battery, battery modules
And preparation method thereof.
Background technology
Lithium-ion-power cell has been widely used in electronic equipment and electronic as the Green High Performance battery of a new generation
In automobile industry, and with the continuous continuous popularization promoted with ev industry of electric vehicle engineering, people are to electronic vapour
The requirement of vehicle is also higher and higher, especially the cruising ability of electric vehicle, and influences the mainly electricity of electric vehicle cruising ability
The energy density of lithium-ion-power cell packet in electrical automobile.Therefore, improving the energy density of electric automobile power battery seems ten
It is point important, in the case where used in battery chemical system is constant, the energy density of battery pack is promoted, increases the volume of single battery core
It is one of current direction.
In order to cater to consumer demand, electric vehicle has to chassis design to obtain more short, and single battery core needs
Cooperation electric vehicle chassis can generally also be designed more and more flat, in the prior art the thickness of conventional electric core of lithium ion power battery
It spends about between 10mm~60mm, and in the case where single battery core volume increases and battery core thickness reduces, battery core length and width
Degree is opposite to be will increase, when working so as to cause battery core on pole piece by current density it is also increasing, such battery is in work
Heating is also relatively fast when making, and be easy to cause security risk.
Invention content
It is an object of the present invention to：In view of the deficiencies of the prior art, a kind of multi pole ears battery core provided, the multipole
Ear battery core conveyance capacity is strong, reduces battery core internal resistance.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of multi pole ears battery core includes the battery core formed by winding or lamination by positive plate, diaphragm and negative plate, described
Positive plate both sides are provided with several corresponding anode ears, and the negative plate both sides are provided with several corresponding negative electrode lugs；Just
The anode ear group of battery core both sides is formed after the anode ear of pole piece both sides is rolled or lamination；The negative electrode lug of negative plate both sides is rolled
Or the negative electrode lug group of battery core both sides is formed after lamination.
As the improvement of multi pole ears battery core of the present invention, the thickness of the anode ear is 3~20 μm, the negative electrode lug
Thickness be 3~20 μm.If the thickness of anode ear or negative electrode lug is less than 3 μm, lug is too thin, and being not achieved reduces battery core internal resistance
Effect, if the thickness of anode ear or negative electrode lug is higher than 20 μm, lug is too thick, can influence the thickness for making battery core.
As the improvement of multi pole ears battery core of the present invention, the thickness of the positive plate is 30~100 μm, the cathode
The thickness of piece is 50~150 μm.If positive plate thickness is less than 30 μm or the thickness of negative plate is less than 50 μm, battery capacity can be made
It is unable to reach requirement, discharge current becomes smaller, if positive plate thickness is more than 100 μm or negative plate thickness is more than 150 μm, can make electricity
The internal resistance of core increases, while can also influence the thickness of battery core.
As the improvement of multi pole ears battery core of the present invention, the thickness of the battery core is 5mm~30mm.Conventional battery core
Thickness is generally 10mm~60mm, and the present invention can make the thickness of battery core accomplish original half or so, in battery energy density
In the case of constant, the conveyance capacity of battery core is increased, reduces the internal resistance of battery core.
As the improvement of multi pole ears battery core of the present invention, the thickness of the battery core is 8mm.The thickness can make battery core
Effect reaches best.
The beneficial effects of the present invention are pole piece both sides are provided with multiple corresponding anode ears and negative electrode lug, and this is just
Lug and negative electrode lug form the anode ear group and negative electrode lug group of battery core after winding or lamination, meanwhile, the thickness of battery core can
The half for controlling general thickness significantly reduces the internal resistance of battery core, enhances the conveyance capacity of battery core.
The second object of the present invention is：In view of the deficiencies of the prior art, a kind of multi-terminal battery, the multiterminal are additionally provided
Sub- battery discharge ability is strong, good heat dissipation effect.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of multi-terminal battery, including the shell of battery core, the receiving battery core and the lid for being set to the shell both ends
Plate, the cover board include the first cover board and the second cover board, first cover board and the second cover board is at least one is provided with explosion-proof valve,
And first cover board and the second cover board are both provided at least one positive terminal and at least one negative terminal, the positive terminal
Sub to be electrically connected with the anode ear group of the battery core, the negative terminal is electrically connected with the negative electrode lug group of the battery core.
The beneficial effects of the present invention are：Both ends of the present invention are both provided with cover board, and each cover board is both provided with positive terminal
With negative terminal, and each positive terminal and negative terminal respectively with constitute the present invention battery core on anode ear group and cathode
Ear group is correspondingly connected with, and enhances the discharge capability of battery, simultaneously because battery core thickness is reduced to the half of conventional battery core, thus this
The thickness of invention can also be made smaller than original, strengthen the heat-sinking capability of battery.
The third object of the present invention is：In view of the deficiencies of the prior art, a kind of battery modules are additionally provided, the battery mould
Group can improve the group efficiency of battery.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of battery modules, including several multi-terminal batteries pass through series connection and/or the battery pack in parallel formed, the electricity
The both sides of pond group are provided with side plate, and the battery pack is provided at both ends with end plate, is formed between the cover board and the side plate
Pressure release passage corresponding with the explosion-proof valve.
As the improvement of battery modules of the present invention, the side plate be equipped with connection circuit and be provided with it is described just
Extreme son and the corresponding contact that is electrically connected of negative terminal, make multi-terminal battery be more prone to assemble, improve the life of battery modules
Produce efficiency.
The beneficial effects of the present invention are：The present invention forms electricity by several multi-terminal batteries by series connection and/or parallel connection
Then pond group is connect with the circuit in template again, take full advantage of the space of module, simultaneously as forming the battery modules
Cell thickness reduces, and corresponding cell height and width then have the space promoted, thus battery modules can also be made than original
Carry out bigger, improves the group efficiency of battery.
The fourth object of the present invention is：A kind of preparation method of battery modules is additionally provided, is mainly included the following steps that：
S1：Determine the size of multi pole ears battery core；
S2：Multi pole ears battery core is made by winding or lamination in the positive plate cut, diaphragm and negative plate；
S3：The multi pole ears battery core for executing the step 2 is assembled to form multi-terminal battery with cover board, shell；
S4：Several multi-terminal batteries for executing the step 3 are stacked gradually to form battery pack, then the two of battery pack
Side installation side plate, at the both ends of battery pack, battery modules are made in installation end plate.
The improvement of preparation method as battery modules of the present invention, includes the following steps：
S1：The length and width dimensions of Claims 1 to 5 any one of them battery core are determined according to actual use situation, battery core
Length and width dimensions are 50mm*30mm~500mm*300mm；
S2：The positive plate cut, negative plate and diaphragm are carried out according to the sequence of positive plate-diaphragm-negative plate-diaphragm
Winding or lamination form battery core, and the anode ear group that battery core both sides are formed after anode ear is rolled or lamination of positive plate both sides,
The negative electrode lug group of battery core both sides is formed after the negative electrode lug of negative plate both sides is rolled or lamination；
S3：By execute the step 2 battery core anode ear group and negative electrode lug group use anode on switching piece and cover board respectively
Terminal and negative terminal are correspondingly connected with, and then cover board is bonded together with shell by Laser Welding mode again, multi-terminal is made
Battery；
S4：Several multi-terminal batteries for executing the step 3 are stacked gradually to form battery pack, then the two of battery pack
Side installation side plate, at the both ends of battery pack, battery modules are made in installation end plate.
The beneficial effects of the present invention are：For needing to be wound the battery core of production, the technique of former battery core production
It is being wound assembly after needing slitting, positive and negative anodes lug is made to be distributed in the same side；And the battery core pole piece both sides in the present invention are equal
It is provided with anode ear group and negative electrode lug group, slitting technique can be saved, directly winding assembly improves the production efficiency of battery core.
Description of the drawings
Fig. 1~2 are the schematic diagram of the embodiment of the present invention 1.
Fig. 3 is the structural schematic diagram of battery core in the present invention.
Fig. 4~5 are the schematic diagram of the embodiment of the present invention 2.
Fig. 6 is the schematic diagram of the embodiment of the present invention 3.
Fig. 7 is the structural schematic diagram of multi-terminal battery in the present invention.
Fig. 8 is the schematic diagram of the embodiment of the present invention 4.
Fig. 9 is the vertical view of battery modules in the present invention.
Figure 10 is the side view of battery modules in the present invention.
Wherein, 1- positive plates；11- anode ears；11 '-anode ear groups；2- negative plates；21- negative electrode lugs；21 '-negative electrode lug groups；
3- battery cores；4- shells；5- cover boards；The first cover boards of 51-；The second cover boards of 52-；53- explosion-proof valves；54- positive terminals；55- negative pole ends
Son；6- multi-terminal batteries；7- battery packs；71- side plates；72- end plates；73- pressure release passages；8- battery modules.
Specific implementation mode
Some vocabulary has such as been used to censure specific components in specification and claim.Those skilled in the art answer
It is understood that hardware manufacturer may call the same component with different nouns.This specification and claims are not with name
The difference of title is used as the mode for distinguishing component, but is used as the criterion of differentiation with the difference of component functionally.Such as logical
The "comprising" of piece specification and claim mentioned in is an open language, therefore should be construed to " include but do not limit
In "." substantially " refer in acceptable error range, those skilled in the art can be described within a certain error range solution
Technical problem basically reaches the technique effect.
In the description of the present invention, it is to be understood that, term "upper", "lower", "front", "rear", "left", "right", level "
The orientation or positional relationship of equal instructions is to be based on the orientation or positional relationship shown in the drawings, be merely for convenience of the description present invention and
Simplify description, does not indicate or imply the indicated device or element must have a particular orientation, with specific azimuth configuration
And operation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be machine
Tool connects, and can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary two members
Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in this hair as the case may be
Concrete meaning in bright.
Below in conjunction with attached drawing, invention is further described in detail, but not as a limitation of the invention.
Embodiment 1
As shown in Figures 1 to 3, a kind of multi pole ears battery core includes being formed by winding by positive plate 1, diaphragm and negative plate 2
Battery core 3,1 both sides of positive plate are provided with several corresponding anode ears 11, and 2 both sides of negative plate are provided with several corresponding cathode
Ear 21；The rolled rear anode ear group 11 ' for forming 3 both sides of battery core of anode ear 11 of 1 both sides of positive plate；It bears 2 both sides of negative plate
The negative electrode lug group 21 ' of 3 both sides of battery core is formed after lug 21 is rolled.
Preferably, the thickness of anode ear 11 is 3~20 μm, and the thickness of negative electrode lug 21 is 3~20 μm.
Preferably, the thickness of positive plate 1 is 30~100 μm, and the thickness of negative plate 2 is 50~150 μm.
Preferably, the thickness of battery core 3 is 5mm~30mm.
Preferably, the thickness of battery core 3 is 8mm.
Embodiment 2
As seen in figures 3-5, as different from Example 1, this implementation includes being passed through by positive plate 1, diaphragm and negative plate 2
The battery core 3 formed after lamination, 1 both sides of positive plate are provided with several corresponding anode ears 11, and 2 both sides of negative plate are provided with several
A corresponding negative electrode lug 21；The anode ear 11 of 1 both sides of positive plate forms the anode ear group 11 ' of 3 both sides of battery core after lamination；Cathode
The negative electrode lug 21 of 2 both sides of piece forms the negative electrode lug group 21 ' of 3 both sides of battery core after lamination.
Other structures are same as Example 1, and which is not described herein again.
Comparative example 1
As different from Example 1, this comparative example is wound by multiple lugs using only side and forms lug group
Structure, other structures are same as Example 1, and which is not described herein again.
Comparative example 2
As different from Example 2, this comparative example forms lug group using only side by multiple lug laminations
Structure, other structures are same as Example 2, and which is not described herein again.Respectively to the battery core of Examples 1 to 2 and comparative example 1~2 into
Row electrochemical property test, test result are shown in Table 1.
The battery core electrochemical property test result of 1 Examples 1 to 2 of table and comparative example 1~2：
By the test result of table 1 it is found that under the premise of 20 ° of fixed temperature is identical with energy density, compared with prior art,
The lithium ion electronics of the present invention has lower internal resistance, meanwhile, present invention temperature in work same time is promoted slower, is dissipated
Hot property is excellent, more securely and reliably.
Embodiment 3
As shown in figs. 6-7, a kind of multi-terminal battery, including battery core 3, accommodate battery core 3 shell 4 and be set to shell 4
The cover board 5 at both ends, cover board 5 include the first cover board 51 and the second cover board 52, and the first cover board 51 and the second cover board 52 are both provided with anti-
Quick-fried valve 53, and the first cover board 51 and the second cover board 52 are both provided at least one positive terminal 54 and at least one negative terminal
55, positive terminal 54 is electrically connected with the anode ear group 11 ' of battery core 3, and 55 son of negative pole end is electrically connected with the negative electrode lug group 21 ' of battery core 3.
Embodiment 4
As shown in Fig. 7~8, as different from Example 3, first cover board 51 of the present embodiment is provided with explosion-proof valve 53, and
Second cover board 52 is not provided with explosion-proof valve 53.
Other structures are same as Example 3, and which is not described herein again.
Embodiment 5
As shown in Fig. 9~10, a kind of battery modules, including several multi-terminal batteries 6 pass through series connection and/or formation in parallel
Battery pack 7, the both sides of battery pack 7 are provided with side plate 71, and battery pack 7 is provided at both ends with end plate 72, cover board 5 and side plate 71 it
Between be formed with pressure release passage corresponding with explosion-proof valve 53 73.
Preferably, side plate 71 is equipped with connection circuit and is provided with electricity corresponding with positive terminal 54 and negative terminal 55
Tie point.
Embodiment 6
As shown in Fig. 1~10, a kind of preparation method of battery modules, which is characterized in that include the following steps：
S1：The length and width dimensions of Claims 1 to 5 any one of them battery core 3, battery core 3 are determined according to actual use situation
Length and width dimensions be 50mm*30mm~500mm*300mm；
S2：By the positive plate 1 being die cut, negative plate 2 and diaphragm according to positive plate-diaphragm-negative plate-diaphragm sequence into
Battery core 3, and the rolled rear anode ear group 11 ' for forming 3 both sides of battery core of anode ear 11 of 1 both sides of positive plate are formed after row winding,
The rolled rear negative electrode lug group 21 ' for forming 3 both sides of battery core of negative electrode lug 21 of 2 both sides of negative plate；
S3：By execute the step 2 battery core 3 anode ear group 11 ' and negative electrode lug group 21 ' use switching piece and cover board 5 respectively
On positive terminal 54 and negative terminal 55 be correspondingly connected with, cover board 5 and shell 4 are then bonded on one by Laser Welding mode again
It rises, multi-terminal battery 6 is made；
S4：Several multi-terminal batteries 6 for executing the step 3 are stacked gradually to form battery pack 7, then in battery pack 7
Both sides installation side plate 71, battery pack 7 both ends installation end plate 72 battery modules 8 are made.
Embodiment 7
As shown in Fig. 1~10, as different from Example 6, step 2 is in the present embodiment：
S2：The positive plate 1 cut out, negative plate 2 are carried out with diaphragm according to the sequence of positive plate-diaphragm-negative plate-diaphragm
Battery core 3 is formed after lamination, and the anode ear 11 of 1 both sides of positive plate forms the anode ear group 11 ' of 3 both sides of battery core after lamination, bear
The negative electrode lug 21 of 2 both sides of pole piece forms the negative electrode lug group 21 ' of 3 both sides of battery core after lamination；
Other structures are same as Example 6, and which is not described herein again.
Several preferred embodiments of the present invention have shown and described in above description, but as previously described, it should be understood that this hair
It is bright to be not limited to form disclosed herein, it is not to be taken as the exclusion to other embodiment, and can be used for various other
Combination, modification and environment, and can in the scope of the invention is set forth herein, by the technology of above-mentioned introduction or related field or
Knowledge is modified.And changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention, then it all should be
In the protection domain of appended claims of the present invention.
Claims (10)
1. a kind of multi pole ears battery core, it is characterised in that：Including passing through winding or lamination by positive plate (1), diaphragm and negative plate (2)
The battery core (3) of formation, positive plate (1) both sides are provided with several corresponding anode ears (11), negative plate (2) both sides
It is provided with several corresponding negative electrode lugs (21)；It is formed after the anode ear (11) of positive plate (1) both sides is rolled or lamination
The anode ear group (11 ') of battery core (3) both sides；Electricity is formed after the negative electrode lug (21) of negative plate (2) both sides is rolled or lamination
The negative electrode lug group (21 ') of core (3) both sides.
2. multi pole ears battery core according to claim 1, it is characterised in that：The thickness of the anode ear (11) is 3~20 μm,
The thickness of the negative electrode lug (21) is 3~20 μm.
3. multi pole ears battery core according to claim 1, it is characterised in that：The thickness of the positive plate (1) is 30~100 μ
The thickness of m, the negative plate (2) are 50~150 μm.
4. multi pole ears battery core according to claim 1, it is characterised in that：The thickness of the battery core (3) is 5mm~30mm.
5. multi pole ears battery core according to claim 4, it is characterised in that：The thickness of the battery core (3) is 8mm.
6. a kind of multi-terminal battery, it is characterised in that：Described in Claims 1 to 5 any one of them battery core (3), receiving
The shell (4) of battery core (3) and the cover board (5) for being set to the shell (4) both ends, the cover board (5) include the first cover board
(51) and the second cover board (52), first cover board (51) and the second cover board (52) is at least one is provided with explosion-proof valve (53), and
First cover board (51) and the second cover board (52) are both provided at least one positive terminal (54) and at least one negative terminal
(55), the positive terminal (54) is electrically connected with the anode ear group (11 ') of the battery core (3), the negative terminal (55) and institute
State negative electrode lug group (21 ') electrical connection of battery core (3).
7. a kind of battery modules, it is characterised in that：String is passed through by the multi-terminal battery (6) described in claim 6 including several
Connection and/or the battery pack (7) in parallel formed, the both sides of the battery pack (7) are provided with side plate (71), the battery pack (7)
It is provided at both ends with end plate (72), is formed between the cover board (5) and the side plate (71) corresponding with the explosion-proof valve (53)
Pressure release passage (73).
8. battery modules according to claim 7, it is characterised in that：The side plate (71) is equipped with connection circuit and setting
There is the contact that is electrically connected corresponding with the positive terminal (54) and negative terminal (55).
9. a kind of preparation method of battery modules, which is characterized in that include the following steps：
S1：Determine the size of Claims 1 to 5 any one of them multi pole ears battery core (3)；
S2：Multi pole ears battery core (3) is made by winding or lamination in the positive plate cut (1), diaphragm and negative plate (2)；
S3：The multi pole ears battery core (3) for executing the step 2 is assembled to form multi-terminal battery (6) with cover board (5), shell (4)；
S4：Several multi-terminal batteries (6) for executing the step 3 are stacked gradually to form battery pack (7), then in battery pack
(7) battery modules (8) are made in the both ends of battery pack (7) installation end plate (72) in both sides installation side plate (71).
10. the preparation method of battery modules according to claim 9, which is characterized in that include the following steps：
S1：The length and width dimensions of Claims 1 to 5 any one of them battery core (3), battery core (3) are determined according to actual use situation
Length and width dimensions be 50mm*30mm~500mm*300mm；
S2：By the positive plate cut (1), negative plate (2) and diaphragm according to positive plate-diaphragm-negative plate-diaphragm sequence into
Row winding or lamination form battery core (3), and positive plate (1) both sides form battery core (3) after anode ear (11) is rolled or lamination
Battery core (3) both sides are formed after the negative electrode lug (21) of the anode ear group (11 ') of both sides, negative plate (2) both sides is rolled or lamination
Negative electrode lug group (21 ')；
S3：By execute the step 2 battery core (3) anode ear group (11 ') and negative electrode lug group (21 ') respectively by switching piece with lid
Positive terminal (54) and negative terminal (55) on plate (5) are correspondingly connected with, and cover board (5) and shell (4) are then passed through laser again
Weldering mode is bonded together, and multi-terminal battery (6) is made；
S4：Several multi-terminal batteries (6) for executing the step 3 are stacked gradually to form battery pack (7), then in battery pack
(7) battery modules (8) are made in the both ends of battery pack (7) installation end plate (72) in both sides installation side plate (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810609701.3A CN108598354A (en) | 2018-06-13 | 2018-06-13 | A kind of multi pole ears battery core, multi-terminal battery, battery modules and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810609701.3A CN108598354A (en) | 2018-06-13 | 2018-06-13 | A kind of multi pole ears battery core, multi-terminal battery, battery modules and preparation method thereof |
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| CN108598354A true CN108598354A (en) | 2018-09-28 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN111081964A (en) * | 2019-12-24 | 2020-04-28 | Oppo广东移动通信有限公司 | Battery pack for terminal equipment and terminal equipment with battery pack |
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| CN112889181B (en) * | 2020-01-20 | 2022-06-17 | 宁德新能源科技有限公司 | Electrode assembly and battery |
| CN112889181A (en) * | 2020-01-20 | 2021-06-01 | 宁德新能源科技有限公司 | Electrode assembly and battery |
| CN111430653A (en) * | 2020-01-20 | 2020-07-17 | 蜂巢能源科技有限公司 | Battery module, battery package and vehicle |
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| CN112259795A (en) * | 2020-04-30 | 2021-01-22 | 蜂巢能源科技有限公司 | Battery cell assembling method and battery cell |
| CN111710898A (en) * | 2020-06-01 | 2020-09-25 | Oppo广东移动通信有限公司 | Lithium battery cell, preparation method of lithium battery cell and lithium battery |
| CN111916642B (en) * | 2020-07-15 | 2022-04-26 | 江苏正力新能电池技术有限公司 | Battery, battery module and electric vehicle |
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