CN106935782B - Battery unit and battery module comprising same - Google Patents
Battery unit and battery module comprising same Download PDFInfo
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- CN106935782B CN106935782B CN201710108005.XA CN201710108005A CN106935782B CN 106935782 B CN106935782 B CN 106935782B CN 201710108005 A CN201710108005 A CN 201710108005A CN 106935782 B CN106935782 B CN 106935782B
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- busbar
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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
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside 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
- 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
- H01M50/54—Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
- H01R11/05—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations having different types of direct connections
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/02—Soldered or welded connections
- H01R4/029—Welded connections
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention provides a battery unit and a battery module comprising the same, and aims to solve the problem that when a bus bar is connected with the battery unit in series in the battery module, the bus bar and a lug are made of different materials, so that the bus bar and the lug are welded by different materials, and the welding quality is reduced. The battery unit includes the parallelly connected electric core that sets up when one or two above uses, and the electric core has the anodal utmost point ear and the negative pole utmost point ear that is used for establishing ties through busbar rather than other battery unit, and wherein at least one utmost point ear is different and be called the utmost point ear that needs to switch rather than the material of the busbar that links to each other, and battery unit is still including connecting the adaptor that needs to switch utmost point ear and correspond between the busbar, the adaptor includes the adaptor utmost point ear connecting portion of being connected with the utmost point ear that needs to switch and is used for the adaptor busbar connecting portion of being connected with the busbar that corresponds, and the material of adaptor utmost point ear connecting portion is the same with the material that needs the utmost point ear that switches, and adaptor busbar connecting portion.
Description
Technical Field
The present invention relates to a battery cell and a battery module including the same.
Background
The lithium ion battery has the advantages of light weight, large energy storage, large power, no pollution, long service life, small self-discharge coefficient, wide temperature application range and the like, is gradually favored by people, and gradually replaces other traditional batteries in the field of energy storage and power batteries.
For soft package lithium battery, in order to satisfy the needs of power battery and energy storage system battery high voltage and high energy, generally need to establish ties a plurality of lithium ion battery unit, and battery unit includes a plurality of electric cores that connect in parallel each other usually, and electric core includes anodal utmost point ear and negative pole utmost point ear, and the material of anodal utmost point ear is the aluminium material, and the material of negative pole utmost point ear is the copper product. A bus bar is a relatively common form in the industry, i.e., two battery cells are connected in series. In the series connection process of the battery units, a positive electrode tab of one battery unit and a negative electrode tab of an adjacent battery unit are required to be connected together through a bus bar, and in order to facilitate welding, the scheme in use at present mainly comprises the steps of using ultrasonic welding to transfer a nickel strap for the positive electrode tab, then welding a positive electrode (the nickel strap) and the bus bar (a copper material), and welding a negative electrode (the copper material) and the bus bar (the copper material), so that the series connection of the battery units is realized. It can be seen that the above scheme requires ultrasonic welding for material transfer in the series connection process of the battery units, the process is complicated, and the operation is inconvenient. Meanwhile, welding of different materials can exist between the bus bar and the electrode lugs, so that the welding is not firm, and the quality problem is caused.
Disclosure of Invention
The invention aims to provide a battery unit, which aims to solve the problem that when a bus bar in a battery module is connected with the battery unit in series, the bus bar and a lug are made of different materials, so that the bus bar and the lug are welded by different materials, and the welding quality is reduced; it is also an object to provide a battery module including the battery cell.
In order to achieve the purpose, the technical scheme of the battery unit is as follows: the utility model provides a battery unit, the electric core that sets up when using more than one or two, electric core have be used for through the busbar with other battery unit series connection's anodal utmost point ear and negative pole utmost point ear, wherein at least one utmost point ear is different rather than the material of the busbar that links to each other and is called the utmost point ear that needs to switch, battery unit still including connecting the adaptor that needs to switch utmost point ear and correspond between the busbar, the adaptor includes the adaptor utmost point ear connecting portion of being connected with the utmost point ear that needs to switch and is used for the adaptor busbar connecting portion of being connected with the busbar that corresponds, and the material of adaptor utmost point ear connecting portion is the same with the material that needs the utmost point ear that switches, and adaptor busbar connecting portion are the same with the material.
The adaptor is a composite adaptor.
The battery unit comprises one or more than two monomers which are arranged in parallel when in use, each monomer comprises at least two electric cores which are arranged in parallel, the electric cores in the same monomer are fixedly connected through an installation frame, and the adapter is fixed on the installation frame.
One of them does in anodal utmost point ear and the negative pole utmost point ear need switching utmost point ear, another is the same and need not the switching with its busbar material that links to each other, and battery unit still is including connecting the utmost point ear that does not need the switching and the connecting piece between the corresponding busbar, the connecting piece includes the connecting piece utmost point ear connecting portion of being connected with the utmost point ear that does not need the switching and is used for the connecting piece busbar connecting portion of being connected with the busbar that corresponds, the material of connecting piece utmost point ear connecting portion and connecting piece busbar connecting portion is the same with the utmost point ear material that does not need the switching.
And the adaptor busbar connecting part and the connector busbar connecting part are provided with positioning bulges for positioning the busbars.
The technical scheme of the battery module is as follows: the utility model provides a battery module, includes two at least battery unit through busbar series connection, and battery unit includes the electric core of one or two above parallel arrangement, and electric core has the anodal utmost point ear and the negative pole utmost point ear that is used for establishing ties with other battery unit through the busbar, and wherein at least one utmost point ear is different and be called the utmost point ear that needs to switch with the material of the busbar that links to each other, and battery unit still is including connecting the adaptor between utmost point ear that needs to switch and the corresponding busbar, the adaptor includes the adaptor utmost point ear connecting portion of being connected with the utmost point ear that needs to switch and is used for the adaptor busbar connecting portion of being connected with the corresponding busbar, and the material of adaptor utmost point ear connecting portion is the same with the material of the utmost point ear that needs to switch, and adaptor busbar connecting portion is the.
The adaptor is a composite adaptor.
The battery unit comprises one or more than two monomers which are arranged in parallel when in use, each monomer comprises at least two electric cores which are arranged in parallel, the electric cores in the same monomer are fixedly connected through an installation frame, and the adapter is fixed on the installation frame.
One of them does in anodal utmost point ear and the negative pole utmost point ear need switching utmost point ear, another is the same and need not the switching with its busbar material that links to each other, and battery unit still is including connecting the utmost point ear that does not need the switching and the connecting piece between the corresponding busbar, the connecting piece includes the connecting piece utmost point ear connecting portion of being connected with the utmost point ear that does not need the switching and is used for the connecting piece busbar connecting portion of being connected with the busbar that corresponds, the material of connecting piece utmost point ear connecting portion and connecting piece busbar connecting portion is the same with the utmost point ear material that does not need the switching.
And the adaptor busbar connecting part and the connector busbar connecting part are provided with positioning bulges for positioning the busbars.
The invention has the beneficial effects that: the lug that needs to switch of electricity core is different rather than the busbar material that links to each other, it sets up the adaptor to need to switch between lug and the busbar that corresponds, the material of the adaptor lug connecting portion of adaptor is the same with the material that needs the switching lug, the material of the adaptor busbar connecting portion of adaptor is the same with the busbar material that corresponds, in the time of the use, will need to switch the lug and connect on adaptor lug connecting portion, connect the busbar on adaptor lug connecting portion, the welding of the same kind of material has been realized, the switching of material has been realized through the adaptor to the lug that needs to switch, can avoid the busbar to appear the material difference when carrying out fixed connection with the lug that needs to switch and lead to the condition emergence of quality reduction.
Drawings
Fig. 1 is a schematic view of a positive electrode tab in embodiment 1 of a battery module according to the present invention;
FIG. 2 is a bottom view of FIG. 1;
fig. 3 is a schematic view of a negative electrode interposer in embodiment 1 of a battery module according to the present invention;
FIG. 4 is a bottom view of FIG. 3;
FIG. 5 is a schematic view showing the assembly of a cell in example 1 of a battery module according to the present invention;
FIG. 6 is a schematic view of the assembled FIG. 5;
fig. 7 is a schematic view of a battery module according to embodiment 1 of the present invention;
fig. 8 is a schematic view of a positive electrode tab in embodiment 2 of the battery module of the present invention;
FIG. 9 is a bottom view of FIG. 8;
fig. 10 is a schematic view of a negative electrode tab in embodiment 2 of the battery module of the present invention;
fig. 11 is a bottom view of fig. 10.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 to 7, a specific embodiment 1 of the battery module of the present invention is a positive electrode interposer 1, where the positive electrode interposer 1 includes a positive electrode aluminum base layer 11, a positive electrode copper-clad layer 12, and a positive electrode information acquisition device mounting hole 13. The negative electrode adapter sheet 2 is composed of a negative electrode aluminum base material substrate layer 21, a negative electrode copper-clad layer 22 and a negative electrode information acquisition device mounting hole 23. 3 are single bodies, and single body 3 includes first battery cell 31, second battery cell 32 and installation frame 33, is fixed with positive pole adaptor piece 1 and negative pole adaptor piece 2 on the installation frame 33, and 4 are the first busbar, and 5 are the second busbar, and 6 are the third busbar. In this embodiment, the positive electrode tab is made of aluminum, the negative electrode tab is made of copper, and the first bus bar 4, the second bus bar 5, and the third bus bar 6 are made of copper.
The base materials of the positive adapter plate 1 and the negative adapter plate 2 are both made of aluminum, namely, the parts of the positive adapter plate 1 and the negative adapter plate 2 which are not attached with copper are both made of aluminum. The copper-aluminum composite material base material is an aluminum material, the specific gravity and the price are lower than those of a pure copper material, the energy density of the module can be improved, and the cost is properly reduced. In the diagrams 1 and 2, the left half part of the upper surface of the positive electrode adaptor sheet 1 is a positive electrode copper-attached layer 12, the right half part is a positive electrode aluminum base material layer 11, the positive electrode copper-attached layer 12 is used for being welded and fixed with a copper busbar, the aluminum base material layer 11 is used for being welded and fixed with a positive electrode tab, a positive electrode positioning protrusion 14 for being welded with the copper busbar is arranged on the upper surface of the positive electrode adaptor sheet 1, and the positive electrode positioning protrusion 14 is located at the copper-attached layer 12. The positive electrode information collecting device can be mounted in the positive electrode information collecting device mounting hole 13. The upper surface of the negative adapter plate 2 is completely coated with copper to form a negative copper coating layer 22, and the negative copper coating layer 22 is welded and fixed with a copper bus bar and a negative electrode tab. The upper surface of the negative adapter plate 2 is also provided with a negative positioning bulge 24 for positioning welding with a bus bar, and the negative information acquisition device mounting hole 13 can be provided with a positive information acquisition device.
Fig. 5 and fig. 6 are schematic diagrams of assembly of the single body, in this embodiment, the single body 3 includes a mounting frame 33, and a first battery cell 31 and a second battery cell 32 respectively fixed on front and rear sides of the mounting frame 33, where 311 is a first battery cell positive electrode tab, 312 is a first battery cell negative electrode tab, 321 is a second battery cell positive electrode tab, and 322 is a second battery cell negative electrode tab. The positive pole adapter sheet 1 and the negative pole adapter sheet 2 are arranged along the front-back direction, wherein the positive pole information acquisition device mounting hole 13 and the negative pole information acquisition device mounting hole 23 are correspondingly mounted and are close to each other, and the positive pole positioning bulge 14 of the positive pole adapter sheet 1 and the negative pole positioning bulge 24 of the negative pole adapter sheet 2 are respectively arranged at the left end and the right end of the mounting frame 33. Anodal adaptor piece 1 and negative pole adaptor piece 2 are pre-buried in installation frame 33 through the form of moulding plastics, guarantee the insulation between anodal adaptor piece 1 and the negative pole adaptor piece 2 during the installation, prevent that both intercommunications from taking place the short circuit. During installation, the first cell positive electrode tab 311 and the second cell positive electrode tab 321 are welded and fixed on the positive aluminum base body layer 11 in the positive adapter sheet 1 in an up-down lamination mode, and the positive electrode tabs are made of aluminum, so that welding of the same materials is realized. The first cell negative electrode tab 312 and the second cell negative electrode tab 322 are also welded and fixed on the negative electrode copper-attached layer 22 in the negative electrode adaptor sheet 2 in an up-down lamination manner, and during installation, a part where the positioning protrusion is located is reserved for being connected with a copper busbar.
Fig. 7 is a schematic diagram of a battery module, in which two battery units are respectively corresponding to the lower portions of a first bus bar 4, a second bus bar 5 and a third bus bar 6, each battery unit includes three cells 3 connected in parallel, and the electrodes of the two battery units connected to the same bus bar are different. The battery module comprises four battery units from left to right, namely a first battery unit, a second battery unit, a third battery unit and a fourth battery unit. Each battery unit comprises three single bodies 3 connected in parallel, namely six cells connected in parallel. In this embodiment, the first bus bar 4, the second bus bar 5, and the third bus bar 6 are made of copper materials, the first bus bar 4 connects the positive electrode of the first battery cell and the negative electrode of the second battery cell, the third bus bar 6 connects the positive electrode of the second battery cell and the negative electrode of the third battery cell, and the second bus bar 5 connects the positive electrode of the third battery cell and the negative electrode of the fourth battery cell, so that the battery cells are connected in series. When mounted, the bus bar is connected to the positive copper adhesion layer 12 and the negative copper adhesion layer 22 at the portions where the positioning projections are located.
According to the battery module, the aluminum material of the positive electrode lug is led out to be the copper material through the positive electrode adapter sheet, and finally series connection is realized through connection of the copper bus bars, so that the bus bars and the battery cell lug are connected by welding of the same material, ultrasonic welding is not needed, the welding of the same material is firmer, and the quality problem is difficult to occur. Install the switching piece earlier on the installation frame, later install electric core utmost point ear on the switching piece that corresponds again, gather through the busbar at last and realize parallelly connected and the series connection between the battery unit, compare with electric core utmost point ear direct mount on the busbar, realize automated operation more easily.
In this embodiment, the positive electrode tab is a tab to be connected, which is made of a material different from that of the busbar, the positive electrode adapter sheet is a composite adapter sheet, which is an adapter, the positive electrode copper-clad layer 12 is an adapter busbar connection portion, and the positive electrode aluminum substrate layer 11 is an adapter tab connection portion. The tabs of the positive electrode tab and the negative electrode tab are both of a bending structure. The negative pole lug is the lug which is made of the same material as the busbar and does not need to be connected, the negative pole adapter plate is a connecting piece, the part connected with the busbar in the copper-attached layer on the negative pole adapter plate is a connecting piece busbar connecting part, and the part connected with the negative pole lug is a connecting piece lug connecting part. In other embodiments, the connecting piece can be eliminated, and the tab which does not need to be switched is directly and fixedly connected with the corresponding busbar. In other embodiments, the connector may be a copper sheet. In other embodiments, the material of the substrate of the adapter and the connector can be selected according to actual conditions.
In this embodiment, the negative electrode tab is a tab to be connected, the negative electrode adapter sheet is a composite adapter sheet, i.e., an adapter, the negative electrode copper-attached layer 82 is an adapter tab connection portion, and the negative electrode aluminum substrate layer 81 is an adapter busbar connection portion. The tabs of the positive electrode tab and the negative electrode tab are both of a bending structure. The positive pole lug is a pole lug which is made of the same material as the bus bar and does not need to be connected, the positive pole adapter sheet is a connecting piece, the part of the positive pole adapter sheet connected with the bus bar forms a connecting piece bus bar connecting part, and the part connected with the positive pole lug forms a connecting piece pole lug connecting part. In other embodiments, the connecting piece can be eliminated, and the tab which does not need to be transferred is directly fixedly connected with the bus bar. In other embodiments, the material of the substrate of the adapter can be selected according to actual conditions.
In the above embodiment, the bus bars of two adjacent battery units connected in series are made of the same material, and are all made of copper material or aluminum material. For example, if the first bus bar 4 is made of copper and the third bus bar 6 is made of aluminum, the positive electrode tab of the first battery cell is the positive electrode tab of example 1, the negative electrode tab of the second battery cell is the negative electrode tab of example 1, the positive electrode tab of the second battery cell is the positive electrode tab of example 2, and the negative electrode tab of the third battery cell is the negative electrode tab of example 2. That is, when the material of the bus bars connecting different battery cells in series is different, the solutions of embodiment 1 and embodiment 2 can be combined and combined.
In other embodiments, the material of the bus bar may be different from the material of the positive electrode tab and the negative electrode tab, and at this time, the positive electrode tab and the negative electrode tab need to be connected with the corresponding bus bar through the adapter.
In this embodiment, the battery unit includes three monomers, that is, six electric cores connected in parallel, in other embodiments, the number of the electric cores connected in parallel may be selected according to actual conditions, and two adjacent electric cores constitute a monomer. In other embodiments, the mounting frame may be eliminated.
In the above embodiment, the number of the adapters in the same battery unit is three, and in other embodiments, the number of the adapters in the same battery unit may be only one, and at this time, the battery cell tabs in the same battery unit may be directly connected in parallel to the same adapter.
In the above embodiments, the adaptor is a composite adaptor, and in other embodiments, the bus bar connecting portion and the tab connecting portion of the adaptor, which are made of different materials, may be fixed together through an assembling relationship.
In the embodiment of the battery unit of the present invention, the structure of the battery unit is the same as that of the battery unit in the above embodiment, and the details thereof are not repeated herein.
Claims (6)
1. A battery cell, characterized by: the battery unit also comprises an adapter connected between the lug to be switched and the corresponding busbar, wherein the adapter comprises an adapter lug connecting part connected with the lug to be switched and an adapter busbar connecting part connected with the corresponding busbar, the material of the adapter lug connecting part is the same as that of the lug to be switched, and the material of the adapter busbar connecting part is the same as that of the corresponding busbar; the battery unit comprises one or more than two monomers which are arranged in parallel when in use, each monomer comprises at least two battery cores which are arranged in parallel, the battery cores in the same monomer are fixedly connected through an installation frame, and the adapter is fixed on the installation frame; one of the positive pole lug and the negative pole lug is the lug needing to be transferred, the other one is the same in material as the busbar connected with the positive pole lug and does not need to be transferred, the battery unit also comprises a connecting piece connected between the lug not needing to be transferred and the corresponding busbar, the connecting piece comprises a connecting piece lug connecting part connected with the lug not needing to be transferred and a connecting piece busbar connecting part used for being connected with the corresponding busbar, and the connecting piece lug connecting part and the connecting piece busbar connecting part are the same in material as the lug not needing to be transferred; the adaptor is anodal adaptor piece, the connecting piece is the negative pole adaptor piece, the substrate of anodal adaptor piece and negative pole adaptor piece is the aluminium material, the first half of the left side of the upper surface of anodal adaptor piece is anodal copper-clad layer, the second half is anodal aluminum product base member layer, anodal copper-clad layer is used for carrying out welded fastening with the busbar of copper product matter, aluminum product base member layer is used for with anodal utmost point ear welded fastening, the upper surface of negative pole adaptor piece is whole to be attached the copper and has formed the negative pole and has attached the copper layer, the negative pole attaches the copper layer simultaneously with the busbar and the negative pole utmost point ear welded fastening of copper product matter.
2. The battery cell of claim 1, wherein: the adaptor is a composite adaptor.
3. The battery cell according to any one of claims 1 or 2, wherein: and the adaptor busbar connecting part and the connector busbar connecting part are provided with positioning bulges for positioning the busbars.
4. A battery module comprising at least two battery cells connected in series by a bus bar, characterized in that: the battery unit comprises one or more than two battery cores arranged in parallel, the battery cores are provided with a positive electrode tab and a negative electrode tab which are used for being connected with other battery units in series through a busbar, the material of at least one tab is different from that of the busbar connected with the tab and is called as a tab to be switched, the battery unit also comprises a switching piece connected between the tab to be switched and the corresponding busbar, the switching piece comprises a switching piece tab connecting part connected with the tab to be switched and a switching piece busbar connecting part used for being connected with the corresponding busbar, the material of the switching piece tab connecting part is the same as that of the tab to be switched, and the material of the switching piece busbar connecting part is the same as that of the corresponding busbar; the battery unit comprises one or more than two monomers which are arranged in parallel when in use, each monomer comprises at least two battery cores which are arranged in parallel, the battery cores in the same monomer are fixedly connected through an installation frame, and the adapter is fixed on the installation frame; one of the positive pole lug and the negative pole lug is the lug needing to be transferred, the other one is the same in material as the busbar connected with the positive pole lug and does not need to be transferred, the battery unit also comprises a connecting piece connected between the lug not needing to be transferred and the corresponding busbar, the connecting piece comprises a connecting piece lug connecting part connected with the lug not needing to be transferred and a connecting piece busbar connecting part used for being connected with the corresponding busbar, and the connecting piece lug connecting part and the connecting piece busbar connecting part are the same in material as the lug not needing to be transferred; the adaptor is anodal adaptor piece, the connecting piece is the negative pole adaptor piece, the substrate of anodal adaptor piece and negative pole adaptor piece is the aluminium material, the first half of the left side of the upper surface of anodal adaptor piece is anodal copper-clad layer, the second half is anodal aluminum product base member layer, anodal copper-clad layer is used for carrying out welded fastening with the busbar of copper product matter, aluminum product base member layer is used for with anodal utmost point ear welded fastening, the upper surface of negative pole adaptor piece is whole to be attached the copper and has formed the negative pole and has attached the copper layer, the negative pole attaches the copper layer simultaneously with the busbar and the negative pole utmost point ear welded fastening of copper product matter.
5. The battery module of claim 4, wherein: the adaptor is a composite adaptor.
6. The battery module according to any one of claims 4 or 5, wherein: and the adaptor busbar connecting part and the connector busbar connecting part are provided with positioning bulges for positioning the busbars.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710108005.XA CN106935782B (en) | 2017-02-27 | 2017-02-27 | Battery unit and battery module comprising same |
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| CN201710108005.XA CN106935782B (en) | 2017-02-27 | 2017-02-27 | Battery unit and battery module comprising same |
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| CN106935782A CN106935782A (en) | 2017-07-07 |
| CN106935782B true CN106935782B (en) | 2020-02-21 |
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| CN107425173A (en) * | 2017-08-15 | 2017-12-01 | 上海卡耐新能源有限公司 | A kind of soft pack cell module welding structure |
| CN109659478B (en) * | 2017-10-12 | 2024-03-29 | 微宏动力系统（湖州）有限公司 | Battery module |
| CN108448016A (en) * | 2018-01-22 | 2018-08-24 | 珠海格力能源环境技术有限公司 | Battery and battery pack |
| CN108448041A (en) * | 2018-05-02 | 2018-08-24 | 中航锂电技术研究院有限公司 | A kind of soft bag lithium ionic cell module and connection method |
| CN111916643A (en) * | 2020-07-29 | 2020-11-10 | 珠海冠宇动力电池有限公司 | Electricity core subassembly and battery package |
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| CN102110797A (en) * | 2011-01-26 | 2011-06-29 | 崔荣龙 | Valve-controlled sealed lead-acid accumulator for electric vehicle |
| CN102780050B (en) * | 2012-07-24 | 2014-11-05 | 浙江海悦自动化机械股份有限公司 | Storage battery busbar repairing device |
| CN103280548A (en) * | 2013-01-16 | 2013-09-04 | 许祎凡 | Battery connecting device and battery component using battery connecting device |
| US10056596B2 (en) * | 2013-06-06 | 2018-08-21 | Te Connectivity Corporation | Battery connector assembly |
| CN205985214U (en) * | 2016-07-11 | 2017-02-22 | 深圳市伊诺动力科技有限公司 | Flexibly -packaged lithium battery pack |
| CN106099020B (en) * | 2016-08-24 | 2019-04-19 | 宁德时代新能源科技股份有限公司 | Soft package battery pack |
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Address after: 454191 Industrial Cluster Area, Jiaozuo City, Henan Province, Standardized Workshop Area on the North Side of Xinyuan Road, West Park Applicant after: Multi-fluorine New Energy Technology Co., Ltd. Address before: 454191 Henan Jiaozuo industrial agglomeration area, West Park, Xinyuan Road, north side of the standardization workshop. Applicant before: Duofuduo (Jiaozuo) Amperex Technology Limited |
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