CN114497700A - Bionic deformation structure integrated battery and preparation method thereof - Google Patents
Bionic deformation structure integrated battery and preparation method thereof Download PDFInfo
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- CN114497700A CN114497700A CN202210119246.5A CN202210119246A CN114497700A CN 114497700 A CN114497700 A CN 114497700A CN 202210119246 A CN202210119246 A CN 202210119246A CN 114497700 A CN114497700 A CN 114497700A
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- 239000004642 Polyimide Substances 0.000 description 1
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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
- H01M50/10—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
-
- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/258—Modular batteries; Casings provided with means for assembling
-
- 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
-
- 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
- H01M50/514—Methods for interconnecting adjacent batteries or cells
-
- 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
- H01M50/521—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the material
- H01M50/526—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the material having a layered structure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention provides an integrated battery with a bionic deformation structure and a preparation method thereof. The problem that the conventional flexible battery can not work under various deformation states (bending, twisting and stretching) is solved; the battery is thinner, and the lower active material content causes that higher capacity cannot be provided, and the performance of the battery is reduced; the integrated battery with the bionic deformation structure and the preparation method thereof solve the problems that after long-term repeated deformation (bending, twisting and stretching), the performance of the battery is attenuated or loses efficacy, and the service life is very easy to shorten.
Description
Technical Field
The invention belongs to the technical field of power batteries, and particularly relates to an integrated battery with a bionic deformation structure and a preparation method thereof.
Background
Lithium Ion Batteries (LIBs) have a wide market and appeal in the fields of power supply for various electronic devices, intelligence, military, and the like, due to their high energy density, repeated cycle use, and the like. The lithium ion battery mainly comprises a battery cell, electrolyte and a shell, wherein the battery cell mainly comprises a positive plate, a diaphragm and a negative plate. A battery core of the high-energy-density lithium battery is mainly formed by stacking a plurality of layers of positive and negative electrodes, and when the thickness of the battery core exceeds a certain thickness, the battery core cannot be flexible and foldable. At present, the research of flexible batteries mainly focuses on a shell, the shell is made into a certain bending degree, if an electrode plate is too thick, the high flexibility of the electrode plate and an active material layer caused by long-term mechanical deformation fall off, and the performance of the battery is invalid; the thin electrode plate has low capacity, and high energy density performance is difficult to realize. Therefore, satisfying LIB with high flexibility and high energy density is still a significant problem to be solved urgently.
In recent years, rapid development of flexible electronic technology, intelligent equipment and intelligent wearable equipment has generated a need for high-performance flexible energy storage power supplies. One of the current research hotspots and emerging frontier technologies is a soft robot which is processed by adopting a soft material, can be continuously deformed and has infinite degree of freedom and flexibility, compared with the traditional rigid robot, the soft robot shows unprecedented adaptability, safety and sensitivity, the defects of the rigid robot are overcome, the application field of the robot is further expanded, the robot can be arbitrarily deformed, various functions of bending, twisting, stretching and the like are realized, and the robot is better suitable for the fields of complicated and changeable field environments, limited spaces, extreme dangerous occasions, disaster rescue and the like. The realization of various functions of software robot needs the energy supply that matches just can satisfy, soft body structure, and conventional rigid battery can not satisfy the requirement of extension and bending, and like this, flexible lithium ion battery becomes the research focus, in the flexible battery technique that has now, mainly has following problem: (1) the battery has a certain mechanical flexibility and cannot work in various deformation states (bending, twisting and stretching). (2) The battery needs to be made thinner, higher capacity cannot be provided due to lower active material content, and the performance of the battery is reduced. (3) After repeated deformation (bending, twisting and stretching) for a long time, the performance of the battery is attenuated or failed, and the service life is very easily shortened.
Bionics is the science of simulating the external morphological structure and internal physiological structure of a living being, making or improving machines, instruments, buildings, processes, etc. The structure bionics is mainly an application problem of researching the external form of an organism and the internal structure principle of substances existing in the nature in design, and potential similarity of the organism and a product is discovered and further simulated by researching the whole or partial structural organization mode of the organism so as to create a new form or solve a new problem. The arched structure of, for example, an eggshell, together with its elastic membrane on the surface, forms a thin shell structure, forming a certain curved surface, and the resulting prestressed structure can withstand considerable stresses. Inspired by various soft organism physiological structures and motion modes in nature, fish, soft crawling organisms (such as inchworms, earthworms, snakes and the like) and birds in nature can move in different modes according to unique physiological structures of the fish, such as the bow motion of the inchworms, the telescopic motion of the earthworms and the snakes, the wave motion of the fish, the flapping wing motion of the birds and the like.
Disclosure of Invention
The invention aims to solve the problems that the flexible battery in the prior art can not work under various deformation states (bending, twisting and stretching); the battery is thinner, and the lower active material content causes that higher capacity cannot be provided, and the performance of the battery is reduced; the integrated battery with the bionic deformation structure and the preparation method thereof solve the problems that after long-term repeated deformation (bending, twisting and stretching), the performance of the battery is attenuated or loses efficacy, and the service life is very easy to shorten.
In order to solve the technical problems, the invention adopts the technical scheme that:
the bionic deformation structure integrated battery is composed of special-shaped single batteries.
Further, the bionic deformation structure integrated battery is formed by combining one or more of the special-shaped single batteries to form a modular array.
Further, the bionic structure deformation integrated battery can be overlapped among the special-shaped single batteries to increase the area.
Further, the number of the special-shaped single batteries is more than or equal to 2.
Further, the shape of the special-shaped single battery is triangular, square, rectangular, circular or hexagonal.
Further, the special-shaped single battery is a light high-energy battery.
Furthermore, the special-shaped single batteries are connected through flexible hinges to form the bionic deformation structure integrated battery of the modular array.
Further, the flexible hinge is manufactured based on a highly conductive metal and a corrosion resistant elastic polymer layer protected by double-sided insulation.
Further, the shape of the flexible hinge can be changed at will to be matched with the shape of the special-shaped single battery.
Further, the preparation method of the special-shaped single battery is lamination, winding, sputtering, spraying, printing or etching, and the special-shaped structure is realized.
According to the bionic deformation structure integrated battery and the preparation method thereof, the integrated battery is designed by referring to the external form or internal physiological structure and motion mode of the natural animal and plant bodies, so that the battery has a certain strength, rigidity and stability structure, higher capacity and battery performance, the service life of the battery is prolonged, and high energy output is realized.
Drawings
Fig. 1 is a schematic structural diagram of a bionic deformation structure integrated battery according to an embodiment of the invention;
fig. 2 is a schematic structural diagram of a bionic deformation structure integrated battery according to another embodiment of the invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
Referring to fig. 1-2, an embodiment of the present invention provides a bionic deformation structure integrated battery, wherein the bionic deformation structure of the bionic deformation structure integrated battery is based on the external shape or internal physiological structure of natural plants and animals, and is composed of special-shaped single cells.
Specifically, the bionic deformation structure integrated battery is formed by combining one or more of special-shaped single batteries to form a modular array.
Specifically, each special-shaped unit cell of the bionic structure deformation integrated battery can be overlapped to increase the area.
Preferably, the number of the special-shaped single batteries is more than or equal to 2.
Preferably, the shape of the special-shaped single battery is triangular or square or rectangular or circular or hexagonal. Specifically, the shape of the special-shaped single battery can be any shape and can be changed at will.
Preferably, the heteromorphic single cell is a lightweight high-energy battery.
Specifically, in the method for preparing the bionic deformation structure integrated battery, the special-shaped single batteries are connected through the flexible hinges to form the bionic deformation structure integrated battery of the modularized array.
In particular, the flexible hinge is made based on highly conductive metals and a corrosion resistant elastic polymer layer (PI, PDMS, TPU, Ecoflex, Parylene, etc.) protected by double-sided insulation. Specifically, the highly conductive metal may be Cu, Ag, Au, or the like.
In particular, the shape of the flexible hinge can be changed at will to be matched with the shape of the special-shaped single battery.
Specifically, the preparation method of the special-shaped single battery is laminating, winding, sputtering, spraying, printing or etching, and the special-shaped structure is realized. In particular, other means of preparation may also be used.
Specifically, the voltage of the bionic deformation structure integrated battery can be determined through the series combination of the special-shaped single batteries, modularization is formed, and high-voltage output is achieved.
Specifically, the improvement of the total battery capacity of the bionic deformation structure integrated battery is determined by depending on the capacity and the number of the special-shaped single batteries connected in parallel.
Specifically, the bionic deformation structure integrated battery can increase the capacity of the battery by enlarging the stacking area.
Example 1:
referring to the attached drawing 1, the bionic deformation structure integrated battery mainly refers to an outer skin structure of a soft organism, such as a fish scale, each scale is oval, the whole battery is composed of 4 rows of oval single batteries with 8 rows, the battery cell is realized by lamination or winding, the connection between the single batteries is realized by a flexible hinge, and the flexible hinge is composed of double-sided polyimide and copper foil (PI/Cu/PI);
the flexible hinge is in a rectangular shape;
1/4 superposition is realized between the monomers;
the 8 monomers in each row are connected in parallel, so that the capacity of the battery can be increased, and the voltage can be increased between every two rows by connecting in series or by using a parallel connection mode.
Example 2:
referring to the attached figure 2, the bionic deformation structure integrated battery mainly refers to an outer skin structure of a soft organism, such as snake scales, each scale is hexagonal, the whole battery is composed of 4 rows and 7 columns of hexagons, a battery cell is prepared in a lamination mode, connection among monomers is realized through a flexible hinge, and the flexible hinge is formed by TPU/Ag/TPU;
the shape of the flexible hinge adopts a parallelogram;
1/3 superposition is realized between the monomers;
the 7 monomers in each row are connected in series to realize voltage boosting, and the 4 monomers in each row are connected in parallel to realize the increase of the battery capacity, or a series connection mode can be used.
The invention has the advantages and beneficial effects that:
1. according to the bionic deformation structure integrated battery and the preparation method thereof, the integrated battery is designed by referring to the external form or the internal physiological structure and the motion mode of natural plants and animals, so that a topological integrated battery is formed, the special-shaped light high-energy battery is used and is connected through the flexible hinge, so that the battery has a certain strength, rigidity and stability structure, can realize high-energy supply and various deformation functions such as bending, stretching, twisting and the like, has higher capacity and battery performance, prolongs the service life of the battery and realizes high-energy output.
2. According to the bionic deformation structure integrated battery and the preparation method thereof, the output of different voltages and battery capacities can be realized by changing the series-parallel connection mode of the special-shaped single battery.
3. According to the bionic deformation structure integrated battery and the preparation method thereof, the overall performance of the battery is not influenced under the condition that any special-shaped single battery is damaged, and the function of providing energy for a long time can be better realized.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (10)
1. The utility model provides a bionical integrated battery that warp structure which characterized in that:
the bionic deformation structure of the bionic deformation structure integrated battery is composed of special-shaped single batteries.
2. The bionic deformation structure integrated battery of claim 1, which is characterized in that:
the bionic deformation structure integrated battery is formed by combining one or more of the special-shaped single batteries to form a modular array.
3. The bionic deformation structure integrated battery of claim 2, wherein:
the special-shaped single batteries of the bionic structure deformation integrated battery can be overlapped to increase the area.
4. The bionic deformation structure integrated battery as claimed in claim 3, wherein:
the number of the special-shaped single batteries is more than or equal to 2.
5. The bionic deformation structure integrated battery according to any one of claims 1 to 4, characterized in that:
the special-shaped single battery is triangular, square, rectangular, circular or hexagonal.
6. The bionic deformation structure integrated battery as claimed in claim 5, wherein:
the special-shaped single battery is a light high-energy battery.
7. A method for preparing the biomimetic deformed structure integrated battery according to claim 5, wherein the method comprises the following steps:
and connecting the special-shaped single batteries through a flexible hinge to form the bionic deformation structure integrated battery of the modular array.
8. The method for preparing the bionic deformation structure integrated battery according to claim 7, characterized in that:
the flexible hinge is made based on a highly conductive metal and a corrosion resistant elastic polymer layer protected by double-sided insulation.
9. The method for manufacturing the bionic deformation structure integrated battery according to claim 7 or 8, characterized in that:
the shape of the flexible hinge can be changed at will and is matched with the shape of the special-shaped single battery.
10. The method for preparing the bionic deformation structure integrated battery according to claim 9, characterized in that:
the preparation method of the special-shaped single battery comprises the steps of laminating, winding, sputtering, spraying, printing or etching, so that a special-shaped structure is realized.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210119246.5A CN114497700A (en) | 2022-02-08 | 2022-02-08 | Bionic deformation structure integrated battery and preparation method thereof |
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| CN202210119246.5A CN114497700A (en) | 2022-02-08 | 2022-02-08 | Bionic deformation structure integrated battery and preparation method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85103020A (en) * | 1985-04-18 | 1986-10-15 | 中国科学院声学研究所 | Wide frequency band high sensitivity directive transducer for marine acoustics |
| JP2013080885A (en) * | 2011-09-30 | 2013-05-02 | Smk Corp | Photovoltaic power generator |
| CN106449817A (en) * | 2016-11-15 | 2017-02-22 | 中国科学院力学研究所 | Fish scale-like structured solar battery and preparation method thereof |
| US20210207939A1 (en) * | 2019-03-08 | 2021-07-08 | Jilin University | Bionic flexible actuator with real-time feedback function and preparation method thereof |
| CN113437348A (en) * | 2021-07-01 | 2021-09-24 | 上海大学 | Bidirectional bendable flexible battery and manufacturing method thereof |
| CN113437411A (en) * | 2021-06-17 | 2021-09-24 | 上海大学 | Scale-shaped laminated bendable flexible battery and manufacturing method thereof |
-
2022
- 2022-02-08 CN CN202210119246.5A patent/CN114497700A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85103020A (en) * | 1985-04-18 | 1986-10-15 | 中国科学院声学研究所 | Wide frequency band high sensitivity directive transducer for marine acoustics |
| JP2013080885A (en) * | 2011-09-30 | 2013-05-02 | Smk Corp | Photovoltaic power generator |
| CN106449817A (en) * | 2016-11-15 | 2017-02-22 | 中国科学院力学研究所 | Fish scale-like structured solar battery and preparation method thereof |
| US20210207939A1 (en) * | 2019-03-08 | 2021-07-08 | Jilin University | Bionic flexible actuator with real-time feedback function and preparation method thereof |
| CN113437411A (en) * | 2021-06-17 | 2021-09-24 | 上海大学 | Scale-shaped laminated bendable flexible battery and manufacturing method thereof |
| CN113437348A (en) * | 2021-07-01 | 2021-09-24 | 上海大学 | Bidirectional bendable flexible battery and manufacturing method thereof |
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