CN113097588A - Battery with a battery cell - Google Patents
Battery with a battery cell Download PDFInfo
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- CN113097588A CN113097588A CN202110351868.6A CN202110351868A CN113097588A CN 113097588 A CN113097588 A CN 113097588A CN 202110351868 A CN202110351868 A CN 202110351868A CN 113097588 A CN113097588 A CN 113097588A
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Images
Classifications
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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
-
- 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
Abstract
The application discloses a battery, and relates to the technical field of electrochemical energy storage. The battery comprises a battery core, wherein a gas detection device is arranged in the battery core and used for acquiring parameter information of gas in the battery core and outputting the parameter information through radio, wherein the parameter information comprises at least one of the composition and the content of the gas in the battery core. Because can set up gaseous detection device in the electric core of battery, can directly detect the gas in the electric core through gaseous detection device like this, acquire gaseous parameter information to transmit this parameter information to the battery outside, therefore need not to prick the hole operation to the battery, improved gaseous convenience that detects, simultaneously, can also carry out real-time supervision to the gas that the battery produced.
Description
Technical Field
The invention relates to the technical field of electrochemical energy storage, in particular to a battery.
Background
High energy density batteries are of great significance in mitigating energy and environmental crisis and are therefore widely used in many fields. However, when the battery is damaged or leaked, flammable and explosive gases such as methane and acetylene, and toxic gases such as hydrogen fluoride and carbon monoxide are generated, which is easy to damage the equipment and the user. Therefore, it is particularly important to detect the gas generated from the battery. At present, the gas generated by the battery is detected by a small amount of collection and analysis of the gas generated in the battery through a pricking sampler. However, this method is cumbersome to operate and does not allow real-time monitoring of the gases produced by the cell.
Disclosure of Invention
The embodiment of the invention provides a battery, which aims to solve the problems that the existing mode is complex to operate and the gas generated by the battery cannot be monitored in real time.
In a first aspect, an embodiment of the present application provides a battery, where the battery includes a battery core, and a gas detection device is disposed in the battery core, and the gas detection device is configured to acquire parameter information of a gas in the battery core and output the parameter information by radio, where the parameter information includes at least one of a composition and a content of the gas in the battery core.
Optionally, the battery cell includes: positive plate, negative pole piece and electrolyte, gaseous detection device includes at least one of following:
a first gas detection device disposed between the positive electrode tab and the electrolyte;
a second gas detection device disposed between the negative electrode tab and the electrolyte;
the third gas detection device is arranged in the positive plate or the negative plate;
a fourth gas detection device disposed within the electrolyte.
Optionally, the first gas detection device, the second gas detection device, the third gas detection device and the fourth gas detection device are respectively used for detecting one or more gases.
Optionally, the gas detection device comprises: the gas detection module, the wireless radio frequency module and the packaging film;
the gas detection module is electrically connected with the wireless radio frequency module, and both the gas detection module and the wireless radio frequency module are wrapped in the packaging film;
the gas detection module is used for acquiring parameter information of gas in the electric core and providing electric energy required by the work of the wireless radio frequency module;
the wireless radio frequency module is used for outputting the parameter information by radio under the condition that the gas detection module provides electric energy.
Optionally, the gas detection module comprises: a nano-generator and a nano-gas sensor;
the nanometer generator is electrically connected with the first end of the nanometer gas sensor and the first end of the wireless radio frequency module respectively; the nano generator is used for converting the heat energy or the mechanical energy of the battery core into electric energy and supplying power to the nano gas sensor and the wireless radio frequency module;
the second end of the nano gas sensor is electrically connected with the second end of the wireless radio frequency module, and the nano gas sensor is used for acquiring parameter information of gas in the electric core and transmitting the parameter information to the wireless radio frequency module.
Optionally, the gas detection module further comprises: the energy storage unit is connected with the rectifying unit;
the nano generator is electrically connected with a first end of the rectifying unit, a second end of the rectifying unit is electrically connected with a first end of the energy storage unit, and the rectifying unit is used for converting alternating current of the nano generator into direct current with a preset voltage value;
the second end of the energy storage unit is electrically connected with the first end of the nano gas sensor and the first end of the wireless radio frequency module respectively, and the energy storage unit is used for providing the direct current for the nano gas sensor and the wireless radio frequency module.
Optionally, the nanogenerator comprises at least one of a pyroelectric nanogenerator, a triboelectric nanogenerator, and a piezoelectric nanogenerator.
Optionally, the thickness of the nano-gas sensor is 1 to 100 micrometers, and the thickness of the nano-generator is 1 to 100 micrometers.
Optionally, the thickness of the nano-gas sensor is 1 to 30 micrometers, and the thickness of the nano-generator is 1 to 30 micrometers.
Optionally, the radio frequency module includes: a signal conversion unit and a signal transmitting unit;
the first end of the signal conversion unit is electrically connected with the gas detection module, and the signal conversion unit is used for receiving the analog signal corresponding to the parameter information output by the gas detection module and converting the analog signal corresponding to the parameter information into a digital signal corresponding to the parameter information;
the signal transmitting unit is electrically connected with the second end of the signal conversion unit and is used for outputting the digital signal corresponding to the parameter information through radio.
In this application embodiment, owing to can set up gaseous detection device in the electric core of battery, can directly detect the gas in the electric core through gaseous detection device like this, acquire gaseous parameter information to transmit this parameter information to the battery outside, therefore need not to prick the hole operation to the battery, improved gaseous detection's convenience, simultaneously, can also carry out real-time supervision to the gas that the battery produced.
Drawings
Fig. 1 is a schematic structural diagram of a battery provided in an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a gas detection device before packaging according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural diagram of a packaged gas detection device according to an embodiment of the present disclosure;
fig. 4 is a third schematic structural diagram of a gas detection apparatus according to an embodiment of the present disclosure;
FIG. 5 is a schematic view of a working process of a gas detection apparatus according to an embodiment of the present disclosure;
FIG. 6 is a fourth schematic structural diagram of a gas detection apparatus according to an embodiment of the present disclosure;
fig. 7 is a second schematic flowchart of a gas detection apparatus according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The following describes the battery provided in the embodiments of the present application in detail through specific embodiments and application scenarios thereof with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a battery provided in an embodiment of the present application. As shown in fig. 1, the battery includes a battery cell 100, a gas detection device 200 is disposed in the battery cell 100, and the gas detection device 200 is configured to acquire parameter information of a gas in the battery cell 100 and output the parameter information by radio, where the parameter information includes at least one of a composition and a content of the gas in the battery cell 100.
Specifically, the above-mentioned battery may include, but is not limited to: lithium ion secondary batteries, sodium ion secondary batteries, potassium ion secondary batteries, magnesium ion secondary batteries, aluminum ion secondary batteries, zinc ion secondary batteries, all-solid batteries, quasi-solid batteries, gel batteries, and the like. The structure of the battery cell 100 may be specifically configured according to actual needs, for example, the structure may be in a winding form, or a lamination form, or may be in other battery cell assembly forms, and the present application is not limited specifically. The gas detection device 200 has the characteristics of small volume, light weight, high temperature resistance, strong flexibility, high sensitivity and the like, and therefore, the gas detection device 200 can be embedded into the battery cells 100 in different forms, and cannot affect the performance and the structure of the battery, so that the gas detection device 200 has high universality and safety.
It should be noted that there may be one or more gas detection devices 200, and when there are multiple gas detection devices 200, multiple gas detection devices 200 may be disposed at different positions of the battery cell 100 according to detection requirements, so as to detect gas generation conditions at different positions of the battery cell 100.
In this embodiment, through set up gaseous detection device 200 in electric core 100 of battery, can directly detect the gas that produces in electric core 100 through gaseous detection device 200 like this, acquire gaseous parameter information to transmit this parameter information to the battery outside, therefore need not to prick the hole operation to the battery, improved the convenience that gaseous detected, simultaneously, can also carry out real-time supervision to the gas that the battery produced.
Further, with continued reference to fig. 1, the battery cell 100 includes: the positive electrode tab 110, the negative electrode tab 120, and the electrolyte 130, the gas detection device 200 includes at least one of:
a first gas detection device disposed between the positive electrode tab 110 and the electrolyte 130;
a second gas detection device disposed between the negative electrode tab 120 and the electrolyte 130;
a third gas detection device disposed in the positive electrode tab 110 or the negative electrode tab 120;
a fourth gas detection device disposed within the electrolyte 130.
Specifically, the positive electrode sheet 110 is obtained by applying a positive electrode material to an aluminum foil and then press-molding the aluminum foil. The negative electrode sheet 120 is obtained by applying a negative electrode material to a copper foil and then press-molding the coated negative electrode material. The above electrolyte 130 includes, but is not limited to: inorganic solid electrolytes, polymer solid electrolytes, composite solid electrolytes, gel electrolytes, and the like. The electrolyte 130 described later may represent any one of an inorganic solid electrolyte, a polymer solid electrolyte, a composite solid electrolyte, a gel electrolyte, and the like.
In an embodiment, the gas detection device 200 may include a first gas detection device disposed between the positive electrode tab 110 and the electrolyte 130, a second gas detection device disposed between the negative electrode tab 120 and the electrolyte 130, a third gas detection device disposed within the positive electrode tab 110 or the negative electrode tab 120, and/or a fourth gas detection device disposed within the electrolyte 130. The first gas detection device, the second gas detection device, the third gas detection device and the fourth gas detection device herein may be one gas detection device or a plurality of gas detection devices, and the present application is not specifically limited. Since the gas detection device 200 may be disposed at different positions of the battery cell 100, the gas generated at different positions in the battery cell 100 may be detected, which is beneficial to improving understanding and management of the state of the battery, and further improving the safety performance of the battery.
Further, the first gas detection device, the second gas detection device, the third gas detection device and the fourth gas detection device are respectively used for detecting one or more gases.
In an embodiment, the first gas detection device, the second gas detection device, the third gas detection device and the fourth gas detection device may be gas detection devices for detecting different gases, such as detecting the content of methane by the first gas detection device, detecting the content of acetylene by the second gas detection device, detecting the content of hydrogen fluoride by the third gas detection device, detecting the content of carbon monoxide by the fourth gas detection device, and the like; the first gas detection device, the second gas detection device, the third gas detection device and the fourth gas detection device can be gas detection devices for detecting the same gas or gases, and can detect the content of the gas such as methane, acetylene, hydrogen fluoride and carbon monoxide. The gas components are only used for illustration, and in practical application, different gas detection devices can be arranged as required to detect the components and the contents of other gases.
In this embodiment, a plurality of gas components and contents can be detected by providing a plurality of gas detection apparatuses 200, thereby improving the accuracy of gas detection in the core.
Further, the gas detection apparatus 200 includes: a gas detection module 210, a radio frequency module 220 and an encapsulation film 230;
the gas detection module 210 is electrically connected with the radio frequency module 220, and both the gas detection module 210 and the radio frequency module 220 are wrapped in the packaging film 230;
the gas detection module 210 is configured to obtain parameter information of gas in the battery cell 100, and provide electric energy required by the operation of the radio frequency module 220;
the wireless rf module 220 is used for outputting the parameter information by radio when the gas detection module 210 provides the power.
Specifically, the gas detection module 210 and the rf module 220 do not need a power supply outside the battery to provide a working power supply for the battery, but convert thermal energy or mechanical energy generated inside the battery into electrical energy to provide a working power supply for the battery.
The wireless radio frequency module 220 may operate by using the electric energy provided by the gas detection module 210, and wirelessly transmit the parameter information of the gas in the battery cell 100 acquired from the gas detection module 210, so that the parameter information of the gas inside the battery may be transmitted to the outside of the battery, and the outside of the battery may monitor the gas inside the battery in real time.
The material of the encapsulation film 230 may be a high temperature resistant and corrosion resistant polymer material such as poly-ether-ether-ketone (PEEK), Polysulfone (PSF), Polyethersulfone (PES), Polyphenylene Sulfide (PPS), or Polyimide (PI).
In one embodiment, the gas detection module 210 and the rf module 220 may be packaged with PI tape. Referring to fig. 2 and 3 in detail, fig. 2 is a schematic structural diagram of the gas detection device before being packaged by the PI tape, and fig. 3 is a schematic structural diagram of the gas detection device after being packaged by the PI tape. When the gas detection module 210 and the rf module 220 are packaged by using PI tapes, the bottom end surfaces of the gas detection module 210 and the rf module 220 may be first adhered and fixed on a first PI tape, and then the top end surfaces of the gas detection module 210 and the rf module 220 may be fixed and adhered by using a second PI tape, as shown in fig. 3. Of course, in another embodiment, the polymer coating may be directly coated on the entire outer surface of the gas detection module 210 and the rf module 220, which is not limited in this application.
In this way, the gas detection module 210 and the rf module 220 are both wrapped in the packaging film 230, so that the gas detection module 210 and the rf module 220 are not corroded by corrosive substances in the battery.
Referring to fig. 4, fig. 4 is a third schematic structural diagram of a gas detection apparatus according to an embodiment of the present disclosure. As shown in fig. 4, the gas detection module 210 includes: a nanogenerator 211 and a nanograde sensor 212;
the nano generator 211 is electrically connected to a first end of the nano gas sensor 212 and a first end of the wireless rf module 220, respectively; the nano generator 211 is configured to convert the thermal energy or the mechanical energy of the battery cell 100 into electrical energy, and supply power to the nano gas sensor 212 and the wireless radio frequency module 220;
the second end of the nano-gas sensor 212 is electrically connected to the second end of the wireless radio frequency module 220, and the nano-gas sensor 212 is configured to acquire parameter information of the gas in the battery cell 100 and transmit the parameter information to the wireless radio frequency module 220.
Specifically, the nano-gas sensor 212 may be formed of zero-dimensional metal oxide semiconductor nanoparticles, carbon nanotubes, two-dimensional nano-films, and the like as sensitive materials.
In one embodiment, the nano-generator 211 may generate electrical energy to power the nano-gas sensor 212 and the wireless radio frequency module 220. Referring to fig. 5, fig. 5 is a schematic view of a working flow of a gas detection apparatus according to an embodiment of the present disclosure. The nano generator 211 can convert the heat energy or mechanical energy (generated by the volume expansion and contraction of the battery cell 100) inside the battery cell 100 into electric energy, and further supply power to the nano gas sensor 212 and the wireless radio frequency module 220, at this time, the nano gas sensor 212 can detect the gas in the battery cell 100, and output the parameter information of the gas, and the wireless radio frequency module 220 can wirelessly output the parameter information, thereby realizing the monitoring of the gas inside the battery.
Further, referring to fig. 6, fig. 6 is a fourth schematic structural diagram of the gas detection apparatus provided in the embodiment of the present application. As shown in fig. 6, the gas detection module 210 further includes: a rectifying unit 213 and an energy storage unit 214;
the nano generator 211 is electrically connected to a first end of the rectifying unit 213, a second end of the rectifying unit 213 is electrically connected to a first end of the energy storage unit 214, and the rectifying unit 213 is configured to convert ac power of the nano generator 211 into dc power of a preset voltage value;
the second end of the energy storage unit 214 is electrically connected to the first end of the nano-gas sensor 212 and the first end of the radio frequency module 220, respectively, and the energy storage unit 214 is configured to provide direct current to the nano-gas sensor 212 and the radio frequency module 220.
Specifically, the rectifying unit 213 may be an integrated low-loss full-wave bridge rectifying circuit. The energy storage unit 214 may be a capacitor.
In one embodiment, the nano-generator 211 may generate electrical energy to power the nano-gas sensor 212 and the wireless radio frequency module 220. Referring to fig. 7, fig. 7 is a second schematic flowchart of the gas detecting apparatus according to the embodiment of the present application. The ac generated by the nano-generator 211 is transmitted to the rectifying unit 213, rectified by the rectifying unit 213, and then outputs the dc with a preset voltage value, and the dc is input to the energy storage unit 214 for storage. The energy storage unit 214 supplies power to the nano gas sensor 212 and the wireless radio frequency module 220, at this time, the nano gas sensor 212 can detect gas generated in the battery cell 100, parameter information is output from the nano gas sensor 212, and the wireless radio frequency module 220 can wirelessly output the parameter information, so that monitoring of gas inside the battery is realized.
Further, the nano-generator 211 is at least one of a pyroelectric nano-generator, a friction type nano-generator, and a piezoelectric type nano-generator.
Specifically, the nanogenerator 211 may include, but is not limited to: pyroelectric nano-generators, friction type nano-generators, piezoelectric type nano-generators and the like. The working principle of the pyroelectric nano generator is as follows: the pyroelectric effect of the nano material is utilized to convert the heat energy into the electric energy. The change in heat may be accompanied when the battery is operated in a cycle or any chemical reaction occurs in the battery cell 100. The thermoelectric effect refers to a spontaneous polarization phenomenon generated in an anisotropic solid material due to temperature fluctuation, and the pyroelectric nano-generator can collect waste heat energy in the environment. The working principle of the friction type nanometer generator is as follows: the nylon and the polytetrafluoroethylene are adopted, the polytetrafluoroethylene obtains electrons when the nylon and the polytetrafluoroethylene are in contact, when the nylon and the polytetrafluoroethylene slide, the parts of the nylon and the polytetrafluoroethylene, which are away from a contact surface, need to keep electric neutrality, and the electrons flow to the nylon from the polytetrafluoroethylene, so that a downward current is generated in an external circuit; when the two are in contact with each other, the surfaces which are already in contact keep electric neutrality, and the electrons which flow before need to flow back to keep the electric neutrality, so that upward current is realized in an external circuit. The working principle of the piezoelectric nano generator is as follows: since zinc oxide has the double effects of semiconductor and piezoelectricity, the schottky barrier ensures the capability of zinc oxide of outputting unidirectional current outwards, because when the semiconductor is in contact with metal, the electron work function of zinc oxide is smaller than that of a platinum electrode, electrons flow into a probe (namely the platinum electrode) from zinc oxide, the zinc oxide shows positive electricity, a form similar to a PN junction is formed, and when an external electric field is in a direction from the platinum electrode to the zinc oxide, internal electrons can flow to output current. When the zinc oxide wire is bent, a potential is generated on both sides, and oxygen ions and zinc ions move relative to each other, so that negative electricity is displayed on a compressed place and positive electricity is displayed on a stretched place, and the platinum probe can be regarded as zero potential. When only the probe is placed on the compressed side, the generated potential difference shows positive electricity, which is equivalent to that PN is conducted, and current is generated in an external circuit. On the contrary, the current is smaller and cannot generate voltage output, which is equivalent to the reverse saturation current of the PN junction.
In this embodiment, any one or more of a pyroelectric nano-generator, a friction type nano-generator, and a piezoelectric type nano-generator may be selected as the nano-generator 211 in the gas detection apparatus 200, and thus, the type of the nano-generator 211 may be flexibly selected according to the actual situation.
Further, the thickness of the nano-gas sensor 212 is 1 to 100 micrometers, and the thickness of the nano-generator 211 is 1 to 100 micrometers.
Specifically, the nano-gas sensor 212 may have any shape, for example, a rectangular parallelepiped, a cube, a cylinder, or the like. The thickness of the nano gas sensor 212 is 1 to 100 micrometers, and the thickness of the nano generator 211 is 1 to 100 micrometers, so that the gas detection device 200 comprising the nano gas sensor 212 and the nano generator 211 can be better arranged in the battery cell 100, the influence of the thickness of the gas detection device 200 on the structure of the battery cell 100 is reduced, and the size of the battery is further ensured not to be influenced.
Further, the nano-gas sensor 212 has a thickness of 1 to 30 micrometers, and the nano-generator 211 has a thickness of 1 to 30 micrometers.
Like this, through further having reduced the thickness of nanometer gas sensor 212 and nanometer generator 211, can set up the gas detection device 200 including nanometer gas sensor 212 and nanometer generator 211 in electric core 100 more nimble, further reduce because the influence that the thickness of gas detection device 200 caused electric core 100's structure, and then guaranteed that the size of battery is not influenced.
Further, with continued reference to fig. 7, the radio frequency module 220 includes: a signal conversion unit 221 and a signal transmission unit 222;
the first end of the signal conversion unit 221 is electrically connected to the gas detection module 210, and the signal conversion unit 221 is configured to receive an analog signal corresponding to the parameter information output by the gas detection module 210, and convert the analog signal corresponding to the parameter information into a digital signal corresponding to the parameter information;
the signal transmitting unit 222 is electrically connected to the second end of the signal converting unit 221, and the signal transmitting unit 222 is configured to output a digital signal corresponding to the parameter information by radio.
Specifically, the signal conversion unit 221 may quantize the analog signal corresponding to the parameter information in the gas detection module 210 into the digital signal corresponding to the parameter information by using a Pulse Code Modulation (PCM). Specifically, 8-bit encoding may be adopted to quantize the analog signal into a digital signal with 2^8 ^ 256 orders of magnitude, or 24-bit or 30-bit encoding may also be adopted, and the present application is not limited specifically. The signal transmitting unit 222 maps the coded bit sequence into digital symbols, and the signal transmitting module converts the digital symbols into radio signals to be transmitted, and finally reaches the outside of the battery.
In this embodiment, the signal conversion unit 221 converts the analog signal corresponding to the parameter information into the digital signal corresponding to the parameter information, so as to achieve faster and more accurate data transmission, which is beneficial to improving the efficiency and accuracy of data processing. Meanwhile, the parameter information may be transmitted in the form of a radio signal through the signal transmitting unit 222, so that a management system outside the battery may receive and decode the radio signal, and store and display the decoded parameter information. The management system can also be connected with the Internet, so that the battery can be conveniently analyzed and processed remotely.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the methods of the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A battery, comprising a cell, wherein a gas detection device is arranged in the cell, and the gas detection device is used for acquiring parameter information of gas in the cell and outputting the parameter information by radio, wherein the parameter information comprises at least one of composition and content of the gas in the cell.
2. The battery of claim 1, wherein the cell comprises: positive plate, negative pole piece and electrolyte, gaseous detection device includes at least one of following:
a first gas detection device disposed between the positive electrode tab and the electrolyte;
a second gas detection device disposed between the negative electrode tab and the electrolyte;
the third gas detection device is arranged in the positive plate or the negative plate;
a fourth gas detection device disposed within the electrolyte.
3. The battery of claim 2, wherein the first gas detection device, the second gas detection device, the third gas detection device, and the fourth gas detection device are each configured to detect one or more gases.
4. The battery according to claim 3, wherein the gas detection device comprises: the gas detection module, the wireless radio frequency module and the packaging film;
the gas detection module is electrically connected with the wireless radio frequency module, and both the gas detection module and the wireless radio frequency module are wrapped in the packaging film;
the gas detection module is used for acquiring parameter information of gas in the electric core and providing electric energy required by the work of the wireless radio frequency module;
the wireless radio frequency module is used for outputting the parameter information by radio under the condition that the gas detection module provides electric energy.
5. The battery of claim 4, wherein the gas detection module comprises: a nano-generator and a nano-gas sensor;
the nanometer generator is electrically connected with the first end of the nanometer gas sensor and the first end of the wireless radio frequency module respectively; the nano generator is used for converting the heat energy or the mechanical energy of the battery core into electric energy and supplying power to the nano gas sensor and the wireless radio frequency module;
the second end of the nano gas sensor is electrically connected with the second end of the wireless radio frequency module, and the nano gas sensor is used for acquiring parameter information of gas in the electric core and transmitting the parameter information to the wireless radio frequency module.
6. The battery of claim 5, wherein the gas detection module further comprises: the energy storage unit is connected with the rectifying unit;
the nano generator is electrically connected with a first end of the rectifying unit, a second end of the rectifying unit is electrically connected with a first end of the energy storage unit, and the rectifying unit is used for converting alternating current of the nano generator into direct current with a preset voltage value;
the second end of the energy storage unit is electrically connected with the first end of the nano gas sensor and the first end of the wireless radio frequency module respectively, and the energy storage unit is used for providing the direct current for the nano gas sensor and the wireless radio frequency module.
7. The battery of claim 5, wherein the nano-generator comprises at least one of a pyroelectric nano-generator, a triboelectric nano-generator, and a piezoelectric nano-generator.
8. The battery of claim 5, wherein the nano-gas sensor has a thickness of 1 to 100 microns and the nano-generator has a thickness of 1 to 100 microns.
9. The battery of claim 8, wherein the nano-gas sensor has a thickness of 1 to 30 microns and the nano-generator has a thickness of 1 to 30 microns.
10. The battery according to any of claims 4-6, wherein the radio frequency module comprises: a signal conversion unit and a signal transmitting unit;
the first end of the signal conversion unit is electrically connected with the gas detection module, and the signal conversion unit is used for receiving the analog signal corresponding to the parameter information output by the gas detection module and converting the analog signal corresponding to the parameter information into a digital signal corresponding to the parameter information;
the signal transmitting unit is electrically connected with the second end of the signal conversion unit and is used for outputting the digital signal corresponding to the parameter information through radio.
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