CN114566744A - Mosaic battery, manufacturing method and electric equipment thereof - Google Patents
Mosaic battery, manufacturing method and electric equipment thereof Download PDFInfo
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- CN114566744A CN114566744A CN202210205554.XA CN202210205554A CN114566744A CN 114566744 A CN114566744 A CN 114566744A CN 202210205554 A CN202210205554 A CN 202210205554A CN 114566744 A CN114566744 A CN 114566744A
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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
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/102—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure
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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
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/102—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure
- H01M50/11—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure having a structure in the form of a chip
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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
- H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
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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
- 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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- General Chemical & Material Sciences (AREA)
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Abstract
The invention discloses a mosaic battery, a manufacturing method and electric equipment thereof, wherein the mosaic battery comprises at least two battery cell units, a positive flexible lead, a negative flexible lead and a battery packaging film; the cell unit comprises at least two sub-cells arranged in parallel at intervals, a sub-cell positive flexible wire and a sub-cell negative flexible wire, wherein each sub-cell comprises a sub-cell positive electrode lug and a sub-cell negative electrode lug, the sub-cell positive electrode flexible wire is connected with each sub-cell positive electrode lug, and the sub-cell negative flexible wire is connected with each sub-cell negative electrode lug; the cell units are arranged in parallel at intervals, connected with the positive flexible lead of each sub-cell through a positive flexible lead and connected with the negative flexible lead of each sub-cell through a negative flexible lead; wherein, one side of the positive flexible lead is provided with a positive pole lug, and one side of the negative flexible lead is provided with a negative pole lug; the battery packaging film is used for packaging the battery cell unit, the positive flexible lead and the negative flexible lead to obtain the mosaic battery.
Description
Technical Field
The invention relates to the technical field of lithium batteries, in particular to a mosaic battery, a manufacturing method and electric equipment thereof.
Background
With the rapid development of mobile devices and wearable devices, flexible batteries capable of being bent and deformed become a new development trend of batteries. The flexible battery can be widely applied to wearable electronic products and electronic products with folding screens or curved screens.
When in use, the flexible battery adapts to different use forms of electronic products through bending. At the same time, these devices place higher demands on the flexibility and endurance of the lithium batteries used therein.
Disclosure of Invention
In view of this, embodiments of the present invention provide a mosaic battery, a manufacturing method thereof, and an electric device thereof, so that the battery can be bent in two directions and two dimensions while the battery endurance is improved.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the embodiment of the invention provides a mosaic battery, which comprises at least two battery cell units, a positive flexible lead, a negative flexible lead and a battery packaging film, wherein the positive flexible lead is connected with the negative flexible lead; wherein the content of the first and second substances,
the cell unit comprises at least two sub-cells, sub-cell positive flexible wires and sub-cell negative flexible wires which are arranged in parallel at intervals, each sub-cell comprises a sub-cell positive electrode lug and a sub-cell negative electrode lug, the sub-cell positive flexible wires are connected with the sub-cell positive electrode lugs, and the sub-cell negative flexible wires are connected with the sub-cell negative electrode lugs;
the cell units are arranged in parallel at intervals, connected with the positive flexible lead of each sub-cell through the positive flexible lead and connected with the negative flexible lead of each sub-cell through the negative flexible lead; the flexible lead comprises a positive flexible lead, a negative flexible lead and a positive electrode, wherein a positive electrode lug is arranged on one side of the positive flexible lead, and a negative electrode lug is arranged on one side of the negative flexible lead;
the battery packaging film is used for packaging the battery cell unit, the positive flexible lead and the negative flexible lead to obtain the mosaic battery.
The flexible lead of the positive electrode of the sub-battery core and the flexible lead of the negative electrode of the sub-battery core are coated with insulating pieces, and the length of the insulating pieces is parallel and level to the parallel length of the at least two sub-battery cores which are arranged in parallel at intervals.
The flexible lead of the positive electrode of the sub-battery core extends along the forward direction of the parallel length direction, and the flexible lead of the negative electrode of the sub-battery core extends along the reverse direction of the parallel length direction.
The flexible lead of the positive electrode of the sub-battery core and the flexible lead of the negative electrode of the sub-battery core are sequentially bent and arranged at the same side of the sub-battery core, and the bent widths of the flexible lead of the positive electrode of the sub-battery core and the flexible lead of the negative electrode of the sub-battery core are not more than the width of the sub-battery core. The positive flexible lead and the negative flexible lead are sequentially bent and are arranged on the same side of the battery cell unit, and the bent widths of the positive flexible lead and the negative flexible lead are not more than the width of the battery cell unit.
The flexible positive wire and the flexible negative wire are bent and then located on a first plane of the sub-cell, the flexible positive wire and the flexible negative wire of the sub-cell are bent and then located on a second plane of the sub-cell, and the first plane and the second plane are the same.
And one side of the battery packaging film is punched with pits to accommodate at least four sub-battery cores arranged in an array, and the other side of the battery packaging film is flatly combined with the positive flexible lead and/or the negative flexible lead.
In a second aspect, an embodiment of the present invention provides a method for manufacturing a mosaic battery, where the method includes:
connecting sub-cell positive electrode tabs of at least two sub-cells arranged in parallel at intervals with a sub-cell positive flexible lead, and connecting sub-cell negative electrode tabs with a sub-cell negative flexible lead;
sequentially bending the sub-battery cell positive flexible lead and the sub-battery cell negative flexible lead and placing the bent sub-battery cell positive flexible lead and the bent sub-battery cell negative flexible lead on the same side of the sub-battery cell;
connecting the positive electrodes of at least two sub-battery cores arranged in parallel at intervals of the battery core unit with a positive flexible lead, and connecting the negative electrodes of the sub-battery cores with a negative flexible lead;
sequentially bending the positive flexible lead and the negative flexible lead and placing the positive flexible lead and the negative flexible lead on the same side of the battery cell unit;
and packaging by using a battery packaging film to obtain the mosaic battery.
Before the sub-cell positive flexible lead and the sub-cell flexible lead bus are sequentially bent, the method further includes:
and coating an insulating part on the flexible lead of the positive electrode of the sub-battery core and the flexible lead of the negative electrode of the sub-battery core, wherein the length of the insulating part is parallel to the parallel length of the at least two sub-battery cores arranged in parallel at intervals.
In a second aspect, an embodiment of the present invention provides an electric device, which includes the mosaic battery or the mosaic battery obtained by using the manufacturing method.
The mosaic battery, the manufacturing method and the electric equipment thereof provided by the embodiment of the invention comprise at least two battery cell units, a positive flexible lead, a negative flexible lead and a battery packaging film; the cell unit comprises at least two sub-cells arranged in parallel at intervals, a sub-cell positive flexible wire and a sub-cell negative flexible wire, wherein each sub-cell comprises a sub-cell positive electrode lug and a sub-cell negative electrode lug, the sub-cell positive electrode flexible wire is connected with each sub-cell positive electrode lug, and the sub-cell negative flexible wire is connected with each sub-cell negative electrode lug; the cell units are arranged in parallel at intervals, connected with the positive flexible lead of each sub-cell through the positive flexible lead and connected with the negative flexible lead of each sub-cell through the negative flexible lead; wherein, one side of the positive flexible lead is provided with a positive pole lug, and one side of the negative flexible lead is provided with a negative pole lug; the battery packaging film is used for packaging the battery cell unit, the positive flexible lead and the negative flexible lead to obtain a mosaic battery; therefore, the battery can be bent in two directions and two dimensions while the battery endurance is improved.
Drawings
Fig. 1 is a schematic front-side structural view of a packaged mosaic battery according to an embodiment of the present invention;
fig. 2 is a schematic front-side structure view of a packaged mosaic battery according to another embodiment of the present invention;
fig. 3 is a schematic reverse-side structure diagram of the packaged mosaic battery according to an embodiment of the present invention;
fig. 4 is a schematic reverse-side structure view of a packaged mosaic battery according to another embodiment of the present invention;
fig. 5 is a schematic diagram of an unfolding structure of a battery cell unit according to an embodiment of the present invention;
fig. 6 is a schematic view of a folded front structure of a battery cell unit according to an embodiment of the present invention;
fig. 7 is a schematic view of a folded front structure of a battery cell unit according to another embodiment of the present invention;
fig. 8 is a schematic diagram of a folded back-side structure of a battery cell unit according to an embodiment of the present invention;
fig. 9 is a schematic view of a folded back reverse structure of a battery cell unit according to another embodiment of the present invention;
fig. 10 is a schematic diagram of an unfolding structure of a mosaic battery according to an embodiment of the present invention before packaging;
fig. 11 is a schematic structural diagram of a mosaic battery provided in an embodiment of the present invention after being folded before being packaged;
fig. 12 is an exploded view of a mosaic battery according to an embodiment of the present invention;
fig. 13 is a schematic diagram illustrating a manufacturing process of a sub-cell according to an embodiment of the invention;
fig. 14 is a schematic diagram illustrating a manufacturing process of a sub-cell according to another embodiment of the present invention;
fig. 15 is a flowchart of a manufacturing method of a mosaic battery according to an embodiment of the present invention.
In the figure, a mosaic battery 1, a cell unit 2, a positive flexible wire 3, a negative flexible wire 4, a battery packaging film 5, a sub-cell 6, a sub-cell positive flexible wire 7, a sub-cell negative flexible wire 8, a sub-cell positive electrode tab 9, a sub-cell negative electrode tab 10, a positive electrode tab 11, a negative electrode tab 12, a positive electrode tab 13, a negative electrode tab 14, a diaphragm 15, a bare sub-cell 16, and an insulating member 17.
Detailed Description
For the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The technical solution of the present invention is further described below with reference to the accompanying drawings and examples.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1 to 12, an embodiment of the present invention provides a mosaic battery 1, which includes at least two battery cell units 2, a positive flexible lead 3, a negative flexible lead 4, and a battery packaging film 5; wherein the content of the first and second substances,
the cell unit 2 comprises at least two sub-cells 6, sub-cell positive flexible wires 7 and sub-cell negative flexible wires 8 which are arranged in parallel at intervals, each sub-cell 6 comprises a sub-cell positive electrode tab 9 and a sub-cell negative electrode tab 10, the sub-cell positive electrode flexible wires 7 are connected with the sub-cell positive electrode tabs 9, and the sub-cell negative flexible wires 8 are connected with the sub-cell negative electrode tabs 10;
the cell units 2 are arranged in parallel at intervals, connected with each sub-cell positive flexible lead 7 through the positive flexible lead 3 and connected with each sub-cell negative flexible lead 8 through the negative flexible lead 4; wherein, one side of the positive flexible lead 3 is provided with a positive pole tab 11, and one side of the negative flexible lead 4 is provided with a negative pole tab 12;
the battery packaging film 5 is used for packaging the electric core unit 2, the positive flexible lead 3 and the negative flexible lead 4 to obtain the mosaic battery 1.
Here, the connection of the sub-cell positive flexible wire 7 to the sub-cell positive tab 9 and the connection of the sub-cell negative flexible wire 8 to the sub-cell negative tab 10 may be electric welding, ultrasonic welding, or the like.
Here, the sub-cells 6 may be packaged cell structures or unpackaged cell structures.
The battery provided by the embodiment of the invention is characterized in that the plurality of sub-battery cells 6 are connected in parallel to form the battery cell unit 2, and then the plurality of battery cell units 2 are connected in parallel and packaged to obtain the array type battery, the shape of the array type battery is similar to that of a mosaic, so that the array type battery is named as a mosaic battery 1, constant voltage is provided, the cruising ability is greatly improved, meanwhile, due to the parallel interval arrangement of the sub-battery cells 6 and the parallel interval arrangement of the battery cell units 2, the bidirectional two-dimensional bending of the battery is realized, and the special application scene of a flexible energy storage system can be met under the mechanical deformation of stretching, bending, twisting and the like to a certain degree.
In an embodiment, referring to fig. 13 to 14, the sub-battery cell 6 may be a bare sub-battery cell 16 manufactured by a winding method using a positive electrode tab 13, a negative electrode tab 14, and a separator 15.
In another embodiment, the sub-cell 6 may be an encapsulated sub-cell 17 obtained by encapsulating the bare sub-cell 16 with an encapsulating film 5.
In one embodiment, the sub-cell positive flexible lead 7 and the sub-cell negative flexible lead 8 are coated with an insulating member 17, and a length of the insulating member 17 is flush with a side-by-side length of the at least two sub-cells 6 arranged in parallel at intervals.
Here, referring again to fig. 5, for example, there are three sub-cells 6 arranged side by side, and the length of the insulating member 17 is flush with the side-by-side length of the three sub-cells 6.
Here, the insulating member 17 may include a single-sided insulating tape, such as a polyester/polypropylene/polyimide substrate, and an acrylic adhesive or a silica gel binder, so as to prevent a short circuit between the folded sub-cell positive electrode flexible lead 7 and the folded sub-cell negative electrode flexible lead 8, and improve the mechanical strength of the sub-cell positive electrode flexible lead.
In one embodiment, referring to fig. 5 to 9 again, the sub-cell positive flexible lead 7 extends along a forward direction of the side-by-side length direction, and the sub-cell negative flexible lead 8 extends along a reverse direction of the side-by-side length direction; therefore, the sub-cell positive flexible lead 7 and the sub-cell negative flexible lead 8 extend outwards to be connected with the positive flexible lead 3 and the negative flexible lead 4 respectively.
In an embodiment, the sub-cell positive flexible lead 7 and the sub-cell negative flexible lead 8 are sequentially bent and disposed on the same side of the sub-cell, and the bent widths of the sub-cell positive flexible lead 7 and the sub-cell negative flexible lead 8 are not more than the width of the sub-cell.
Here, the bent widths of the sub-cell positive flexible lead 7 and the sub-cell negative flexible lead 8 are not more than the width of the sub-cell 6, on one hand, please refer to fig. 6 and 8 again, the bent widths of the sub-cell positive flexible lead 7 and the sub-cell negative flexible lead 8 are less than the width of the sub-cell 6, on the other hand, referring to fig. 7 and 9 again, the bent widths of the sub-cell positive flexible lead 7 and the sub-cell negative flexible lead 8 are equal to the width of the sub-cell, so that the bent widths of the sub-cell positive flexible lead 7 and the sub-cell negative flexible lead 8 are on one side of the sub-cell 6, and the problems of short circuit and excessive volume occupation caused by exceeding are avoided.
In an embodiment, the positive flexible lead 3 and the negative flexible lead 4 are sequentially bent and are disposed on the same side of the electrical core unit 2, and the bent widths of the positive flexible lead 3 and the negative flexible lead 4 do not exceed the width of the electrical core unit 2.
Here, please refer to fig. 10 to 11 again, so that the positive electrode flexible lead 3 and the negative electrode flexible lead 4 are ensured to be bent at one side of the battery cell unit 2, thereby avoiding the problems of short circuit and excessive volume occupation caused by exceeding, and meanwhile, the positive electrode bus 3 and the negative electrode bus 4 can also be covered by the insulating member 17. The insulating member 17 may not be covered if the positive electrode bus bar 3 and the negative electrode bus bar 4 do not overlap on the side of the cell unit 2.
In an embodiment, the positive flexible lead 3 and the negative flexible lead 4 are located on a first plane of the sub-cell after being bent, and the sub-cell positive flexible lead 7 and the sub-cell negative flexible lead 8 are located on a second plane of the sub-cell after being bent, where the first plane and the second plane are the same.
Here, the positive flexible lead 3 and the negative flexible lead 4 are bent to a first plane along one side, the sub-cell positive flexible lead 7 and the sub-cell negative flexible lead 8 are bent to a second plane along one side, the first plane and the second plane are the same plane, and meanwhile, a plane opposite to the first plane and the second plane is a third plane, and the third plane is a plane of the sub-cell 6 which does not cover the positive and negative flexible leads and is derived from the positive and negative flexible leads of the electric wire.
In one embodiment, the battery packaging film 5 is punched with pits on one side to accommodate at least four sub-cells 6 arranged in an array, and the other side is flatly combined with the positive flexible lead 3 and/or the negative flexible lead 4.
In an embodiment, the battery packaging film 5 may be an aluminum plastic film, for example, the finished mosaic battery 1 is obtained by packaging the aluminum plastic film.
In another embodiment, the battery packaging film 5 may be a combination of an aluminum-plastic film and an organic-inorganic composite high-performance air-blocking and water-blocking film, the aluminum-plastic film is a surface punched with pits, that is, the upper surface of the sub-battery core 6 is not covered with positive and negative flexible wires, and the organic-inorganic composite high-performance air-blocking and water-blocking film is a flat surface, that is, the flat surface is covered with positive and negative flexible wires, so that one side of the battery packaging film 5 is punched with pits to accommodate the sub-battery cores 6 arranged in a row, and the other side is combined with the positive flexible wires 3 and/or the negative flexible wires 4 in a flat manner, and the bending life of the battery can be greatly prolonged by using this packaging method.
Here, any packaging material that can replace the aluminum plastic film is within the scope of the present invention.
The embodiment of the invention provides a manufacturing method of a mosaic battery, which comprises the following steps:
step 101: connecting sub-cell positive electrode tabs of at least two sub-cells arranged in parallel at intervals with a sub-cell positive flexible lead, and connecting sub-cell negative electrode tabs with a sub-cell negative flexible lead;
step 102: sequentially bending the sub-battery cell positive flexible lead and the sub-battery cell negative flexible lead and placing the bent sub-battery cell positive flexible lead and the bent sub-battery cell negative flexible lead on the same side of the sub-battery cell;
step 103: connecting the positive electrodes of at least two sub-battery cores arranged in parallel at intervals of the battery core unit with a positive flexible lead, and connecting the negative electrodes of the sub-battery cores with a negative flexible lead;
step 104: sequentially bending the positive flexible lead and the negative flexible lead and placing the positive flexible lead and the negative flexible lead on the same side of the battery cell unit;
step 105: and packaging by using a battery packaging film to obtain the mosaic battery.
The battery cell unit formed by connecting a plurality of sub-battery cells in parallel is similar to a mosaic in shape, so that the embodiment of the invention is named as a mosaic battery, which provides constant voltage and greatly improves cruising ability.
In an embodiment, before the bending the sub-cell positive flexible lead and the sub-cell negative flexible lead in sequence, the method further includes:
and coating an insulating part on the flexible lead of the positive electrode of the sub-battery core and the flexible lead of the negative electrode of the sub-battery core, wherein the length of the insulating part is parallel to the parallel length of the at least two sub-battery cores arranged in parallel at intervals.
Here, referring again to fig. 5, for example, there are three sub-cells arranged side by side, and the length of the insulator is flush with the side-by-side length of the three sub-cells.
Here, the insulating member may include a single-sided insulating tape, such as a polyester/polypropylene/polyimide substrate, and an acrylic adhesive or a silica gel binder, so as to prevent a short circuit between the folded sub-cell positive electrode flexible lead and the folded sub-cell negative electrode flexible lead, and improve the mechanical strength of the sub-cell positive and negative electrode flexible leads.
The embodiment of the invention provides electric equipment which comprises the mosaic battery or the mosaic battery obtained by using the manufacturing method.
The electric device in the invention includes but is not limited to a smart watch, a mobile phone, a computer, a tablet, an electric automobile or a communication base station.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and scope of the present invention are included in the protection scope of the present invention.
Claims (10)
1. A mosaic battery is characterized by comprising at least two battery cell units, a positive flexible lead, a negative flexible lead and a battery packaging film; wherein the content of the first and second substances,
the cell unit comprises at least two sub-cells, sub-cell positive flexible wires and sub-cell negative flexible wires which are arranged in parallel at intervals, each sub-cell comprises a sub-cell positive electrode lug and a sub-cell negative electrode lug, the sub-cell positive flexible wires are connected with the sub-cell positive electrode lugs, and the sub-cell negative flexible wires are connected with the sub-cell negative electrode lugs;
the cell units are arranged in parallel at intervals, connected with the positive flexible lead of each sub-cell through the positive flexible lead and connected with the negative flexible lead of each sub-cell through the negative flexible lead; the flexible lead comprises a positive flexible lead, a negative flexible lead and a positive electrode, wherein a positive electrode lug is arranged on one side of the positive flexible lead, and a negative electrode lug is arranged on one side of the negative flexible lead;
the battery packaging film is used for packaging the battery cell unit, the positive flexible lead and the negative flexible lead to obtain the mosaic battery.
2. The mosaic battery of claim 1, wherein said sub-cell positive flexible conductor and said sub-cell negative flexible conductor are coated with an insulating member having a length that is flush with the side-by-side length of said at least two parallel spaced sub-cells.
3. The mosaic battery of claim 1, wherein said sub-cell positive flexible lead extends in a forward direction along said side-by-side length direction, and said sub-cell negative flexible lead extends in a reverse direction along said side-by-side length direction.
4. The mosaic battery of claim 1, wherein said sub-cell positive flexible lead and said sub-cell negative flexible lead are sequentially bent and disposed on the same side of said sub-cells, and wherein the bent widths of said sub-cell positive flexible lead and said sub-cell negative flexible lead do not exceed the width of said sub-cells.
5. The mosaic battery of claim 1, wherein the positive flexible lead and the negative flexible lead are sequentially bent and arranged on the same side of the cell units, and the bent widths of the positive flexible lead and the negative flexible lead do not exceed the width of the cell units.
6. The mosaic battery of claim 3 or 4, wherein the positive flexible lead and the negative flexible lead are bent to be located on a first plane of the sub-cells, and the sub-cell positive flexible lead and the sub-cell negative flexible lead are bent to be located on a second plane of the sub-cells, wherein the first plane and the second plane are the same.
7. The mosaic battery according to claim 1, wherein one side of the battery packaging film is punched with pits to accommodate at least four sub-cells arranged in an array, and the other side of the battery packaging film is flatly combined with the positive flexible lead and/or the negative flexible lead.
8. A manufacturing method of a mosaic battery is characterized by comprising the following steps:
connecting sub-cell positive electrode tabs of at least two sub-cells arranged in parallel at intervals with a sub-cell positive flexible lead, and connecting sub-cell negative electrode tabs with a sub-cell negative flexible lead;
sequentially bending the sub-battery-core positive flexible lead and the sub-battery-core negative flexible lead and placing the bent sub-battery-core positive flexible lead and the bent sub-battery-core negative flexible lead at the same side of the sub-battery core;
connecting at least two sub-cell positive flexible leads arranged in parallel at intervals with the cell units with positive flexible leads, and connecting sub-cell negative flexible leads with negative flexible leads;
sequentially bending the positive flexible lead and the negative flexible lead and placing the positive flexible lead and the negative flexible lead on the same side of the battery cell unit;
and packaging through a battery packaging film to obtain the mosaic battery.
9. The method for manufacturing the mosaic battery according to claim 8, wherein before bending the sub-cell positive flexible lead and the sub-cell negative flexible lead in sequence, the method further comprises:
and coating an insulating part on the flexible conducting wire of the positive electrode of the sub-battery core and the flexible conducting wire of the negative electrode of the sub-battery core, wherein the length of the insulating part is parallel and level with the parallel lengths of the at least two sub-battery cores arranged at intervals in parallel.
10. An electric device, characterized by comprising the mosaic battery of any one of claims 1-7 or the mosaic battery obtained by the manufacturing method of any one of claims 8-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210205554.XA CN114566744A (en) | 2022-03-03 | 2022-03-03 | Mosaic battery, manufacturing method and electric equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210205554.XA CN114566744A (en) | 2022-03-03 | 2022-03-03 | Mosaic battery, manufacturing method and electric equipment thereof |
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| Publication Number | Publication Date |
|---|---|
| CN114566744A true CN114566744A (en) | 2022-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210205554.XA Withdrawn CN114566744A (en) | 2022-03-03 | 2022-03-03 | Mosaic battery, manufacturing method and electric equipment thereof |
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| CN (1) | CN114566744A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115084735A (en) * | 2022-07-01 | 2022-09-20 | 重庆大学 | High-strength lithium ion battery composite material with honeycomb sandwich structure |
-
2022
- 2022-03-03 CN CN202210205554.XA patent/CN114566744A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115084735A (en) * | 2022-07-01 | 2022-09-20 | 重庆大学 | High-strength lithium ion battery composite material with honeycomb sandwich structure |
| CN115084735B (en) * | 2022-07-01 | 2024-04-19 | 重庆大学 | High-strength lithium ion battery composite material with honeycomb sandwich structure |
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Application publication date: 20220531 |