Sandwich biscuit type solid-state lithium battery compartment for unmanned aerial vehicle

Abstract

The invention provides a design scheme of the sandwich biscuit type solid-state lithium battery compartment for the unmanned aerial vehicle, which is completely different from the traditional technical thought; the method comprises the following steps of: firstly, adopting a lithium sulfide polymer as a solid electrolyte, and respectively injecting a layer of polymer containing a positive polarity ion material and a layer of polymer containing a negative polarity ion material on the upper surface and the lower surface of a lining body of the solid electrolyte by using an ion injection method; the sandwich biscuit type solid-state lithium battery arranged in the battery bin is extremely simplified, namely, three nothing is achieved: one is no diaphragm between positive and negative; 2, a lug-free pole; thirdly, no exhaust hole exists; thirdly, the chemical property of the used solid electrolyte is stable, the quality consistency is good, various derivable varieties are available, and the influence of temperature is relatively small; fourthly, compared with a soft package battery with condensed electrolyte, the energy density of the battery can be very high; and fifthly, due to the sandwich biscuit type shape, the topological design of the battery compartment is easy, and the application prospect is very wide.

Description

Technical Field

[0001] The present invention relates to a sandwich-type solid-state lithium battery compartment for unmanned aircraft, which mainly provides a complete power supply solution for unmanned aircraft with lightweight requirements and "anxiety" about cruising range, and has very broad application prospects. Background Art

[0002] As we all know, the difficulties encountered by unmanned aircraft in the development process are all related to batteries or battery compartments. For example, the "anxiety" about the range of unmanned aircraft is related to the energy density of the battery, and the topology of the battery compartment used involves the restrictions on lightweight of unmanned aircraft.

[0003] At present, the batteries used in unmanned aircraft are basically condensed soft-pack lithium batteries packaged in aluminum-plastic film. Most of the electrolytes used in soft-pack lithium batteries are condensed compounds. Therefore, there are natural defects in theory. First, soft-pack lithium batteries are easily affected by ambient temperature, because the stability of the electrolyte determines the consistency of the lithium battery monomer. The condensed electrolyte is easy to vaporize or solidify. The production process has high requirements for production processes and equipment. If the quality control is not good, it will lead to unstable quality and reduced consistency, thereby increasing the control range of the balancing circuit; especially in abnormal situations of overcharging and over-discharging, the soft-pack lithium batteries encapsulated in aluminum-plastic film will also swell; secondly, a diaphragm must be installed between the positive and negative electrodes to prevent short circuits between the positive and negative electrodes, and the addition of the diaphragm greatly reduces the energy density of the battery. Today, the energy density of soft-pack lithium batteries is close to the theoretical limit of 400Wh / kg. Its development space is limited, and it will inevitably find a new way out.

[0004] On the other hand, the battery compartment on the drone is also very important. Unfortunately, the battery compartments on today's drones are of a single shape, all rectangular insertion structures, which cannot meet the broad market demand at all and lead to complex PACK processes in the case of high-power current expansion.

[0005] Based on this, the applicant of the present invention has proposed an innovative idea of ​​a sandwich-type solid-state lithium battery compartment for use in unmanned aircraft, that is, a sandwich-type solid-state battery is loaded into the hollow cylindrical battery compartment, and its advantages are: First, solid-state batteries (SSBs) use solid electrolytes (SSEs) instead of condensed electrolytes. Since the separator and vent holes are removed, the risk of battery electrolyte leakage and explosion is greatly reduced. Second, solid-state batteries (SSBs) have a wider operating temperature range. This is based on the fact that solid electrolytes have good high and low temperature working performance due to their structural stability and the absence of freezing and vaporization problems of liquid or condensed electrolytes. Third, solid-state batteries (SSBs) can be made very thin, and can be said to be the best representative of existing soft-pack battery innovations in reducing load, because they have achieved "three no's": no separator between the positive and negative electrodes, no special ear electrodes, and solid electrolytes do not have the freezing and vaporization problems of condensed electrolytes, so there are no exhaust holes; it can also be used in conjunction with high-voltage positive electrode materials and lithium metal negative electrode materials, especially when using solid electrolyte substrate layers and high-energy-density electrode materials, which can achieve high battery capacity, provide a higher voltage platform and energy density, and by the way greatly reduce the weight of the battery itself.

[0006] Fourth, solid-state batteries use chemically stable lithium sulfide polymers as the electrolyte substrate and different ion metal polymers as the positive and negative electrodes, so that the solid material can achieve ion exchange without dissolving. More importantly, it does not use flammable organic solvents in the entire production and recycling process, is environmentally friendly, and is recognized as one of the future development directions of battery technology.

[0007] Fifth, a sandwich-type solid-state lithium battery battery compartment used in unmanned aircraft adopts a spiral assembly power supply method. In order to solve the range problem of unmanned aircraft, it can also be directly installed on each rotor motor of the unmanned aircraft, and incidentally solves the PACK hybrid problem on the unmanned aircraft, thereby providing a relatively complete power supply solution for unmanned aircraft that require lightweight and range requirements. Summary of the invention

[0008] Based on this, the applicant proposed a design idea for a sandwich-type solid-state lithium battery compartment for use in unmanned aircraft that is completely different from the traditional technical idea. First of all, this manufacturing technology draws on part of the manufacturing technology of integrated circuits, that is, using sulfide polymer as a solid electrolyte, and then using this solid electrolyte as an intermediate lining. Through doping technology and ion implantation, a positive electrode cover formed by a polymer of positive polarity material is injected into the upper layer of the intermediate, and a negative electrode cover formed by a polymer of negative polarity material is injected into the lower layer of the intermediate, so that the metal ions with positive and negative characteristics are respectively embedded in the surface layer of the intermediate; it is called a biscuit-type solid-state battery because this type of battery using a solid electrolyte is particularly easy to make into a round shape, and the solid electrolyte of the intermediate lining is sandwiched between the positive electrode cover and the negative electrode cover to form a The structure is a sandwich biscuit, which changes the "blade-like" shape of liquid batteries or soft-pack batteries. The round sandwich biscuit battery compartment is easy to install and carry, and can even be installed on each motor to make up for the single application environment of the "blade-like" battery; secondly, the energy density of the biscuit-type solid-state lithium battery can be super large, thus avoiding the hybrid connection between battery packs; thirdly, the sandwich biscuit solid-state lithium battery has no risk of liquid exposure, and the chemical properties of the solid electrolyte are stable, which simplifies the topological structure design of the battery compartment. Moreover, the quality consistency of the sandwich biscuit solid-state lithium battery is very good, and it is less affected by temperature. In the most unfavorable situation, the harm of the battery will not leak out, and even under extreme conditions of needle puncture short circuit, the battery will not explode. The specific contents are as follows: A sandwich-type solid-state lithium battery cell for unmanned aircraft includes an upper cover of a cell body, a battery series connection body, a tightening screw, a bottom cover of a cell body, a PCB circuit board, a solid-state battery body, a battery cell, a battery negative electrode cover, a negative electrode cover lead-out terminal, a solid electrolyte, a battery positive electrode cover, and a positive electrode cover lead-out terminal. The main points are: The solid electrolyte is composed of a circular lithium sulfide polymer with a thickness of 3 mm. The sulfide polymer solid electrolyte is used as an intermediate liner. A polymer of a positive polarity material is injected into the upper surface of the liner by a doping technique and an ion implantation method to form a positive electrode cover. A polymer of a negative polarity material is injected into the lower surface of the intermediate body to form a negative electrode cover. Then, a polymer glue that reduces the interface resistance is used to bond the positive electrode cover to the solid electrolyte. Similarly, a polymer glue that reduces the interface resistance is used to bond the negative electrode cover to the solid electrolyte, so that the positive and negative ions on the circular positive electrode cover and the circular negative electrode cover are embedded in the upper and lower surface layers of the intermediate liner. In the embodiment, if three battery cells are assembled in series, the solid-state battery body is placed on the inner liner ring of the bin body, and two tightening screws made of insulating engineering plastic are selected to pass through the negative electrode cover lead-out terminal and the positive electrode cover lead-out terminal in sequence and then pressurized and connected to the inner liner ring hole of the bin body, so that the battery cell and the battery bin are connected as a whole; In the embodiment, if three battery cells are assembled in parallel, the solid-state battery body is placed on the inner liner ring of the bin body. At this time, two conductive metal tightening screws can be selected to pass through the negative electrode cover lead-out end and the positive electrode cover lead-out end and then pressurized and connected to the inner liner ring hole of the bin body, wherein the tightening screw passing through the negative electrode cover lead-out end is the negative electrode, and the other tightening screw passing through the positive electrode cover lead-out end is the positive electrode; For the convenience of design, two small mounting holes are also opened on the circular PCB circuit board to facilitate the connection with the negative cover lead-out terminal and the positive cover lead-out terminal (; The circular PCB circuit board is surface-mounted with an intelligent management circuit of a sandwich-type solid-state lithium battery, and the PCB circuit board includes a single-chip microcomputer, an A / D converter, two photocouplers, two power chips, and two digital temperature sensors, wherein the single-chip microcomputer is solidified with a resident management program; The assembly process of the sandwich-type solid-state lithium battery battery compartment used in the unmanned aircraft is as follows: a stainless steel screw passes through the upper end cover connection hole to connect the upper end cover of the compartment body with the connection hole between the compartment body and the upper end cover; the battery series body is engraved with a compartment body outer thread, and the user can easily screw it into the designated position of the unmanned aircraft, or directly screw it into the flight control motor.

[0009] Furthermore, the upper end cover of the bin body, the battery series connection body, and the bottom plate cover of the bin body are all injection-molded high-temperature resistant engineering plastics, wherein a circular metal plate is embedded in the center of the upper end cover as the positive output end of the battery bin, and a ring-shaped metal plate is embedded in the secondary outer ring of the upper end cover (1) as the negative output ring of the battery bin. A special-shaped square hole is opened in the center of the bottom plate cover of the bin body, and a miniUSB charging seat is embedded in it.

[0010] Furthermore, the digital temperature sensor is of model DS18B20, which adopts TO-92 package and can provide digital temperature measurement values ​​with 9-bit or 12-bit resolution. When the measurement accuracy is plus or minus 2°C, the temperature measurement range is -55°C to +125°C; when the measurement accuracy is selected to be plus or minus 0.5°C, the temperature measurement range is -10°C to +85°C.

[0011] Furthermore, the solid electrolyte is a solid lithium polymer that uses a sulfide material as an intermediate lining, is non-flammable, and does not expose liquid, and has a thickness of 3 mm.

[0012] Furthermore, the circular battery positive electrode cover adopts a lithium-manganese-rich positive electrode polymer material, and the circular battery negative electrode cover adopts a new type of graphite polymer material.

[0013] Furthermore, the appearance of the battery negative electrode cover and the battery positive electrode cover are both disc-shaped bodies with lead-out terminals. To enhance the friction, the bottom of the battery negative electrode cover in contact with the solid electrolyte has convex points, and the bottom of the battery positive electrode cover in contact with the solid electrolyte has convex grid ribs.

[0014] Furthermore, the single-chip microcomputer chip is the core control device of the sandwich-type solid-state lithium battery compartment, adopts LQFP packaging, and has 64 pins. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, without paying creative labor, they can also draw inferences from one example and obtain other similar drawings based on these drawings.

[0016] Figure 1 Appearance of a sandwich-type solid-state lithium battery compartment used in unmanned aircraft Figure 1 ; Figure 2 Appearance of a sandwich-type solid-state lithium battery compartment used in unmanned aircraft Figure 2 ; Figure 3 Appearance of a sandwich-type solid-state lithium battery compartment used in unmanned aircraft Figure 3 ; Figure 4 Disassembly of a sandwich-type solid-state lithium battery compartment used in unmanned aircraft Figure 1 ; Figure 5 Disassembly of a sandwich-type solid-state lithium battery compartment used in unmanned aircraft Figure 2 ; Figure 6 Disassembly of a sandwich-type solid-state lithium battery compartment used in unmanned aircraft Figure 3 ; Figure 7 A combination of sandwich-type solid-state lithium battery monomers used in unmanned aircraft Figure 1 ; Figure 8 A combination of sandwich-type solid-state lithium battery monomers used in unmanned aircraft Figure 2 ; Fig. 9 A sandwich-type solid-state lithium battery battery compartment for unmanned aircraft, composed of three battery cells connected in series Figure 1 ; Fig.10 A sandwich-type solid-state lithium battery battery compartment for unmanned aircraft, composed of three battery cells connected in series Figure 2 ; Fig.11 A sandwich-type solid-state lithium battery compartment structure for unmanned aircraft Figure 1 ; Fig.12 A sandwich-type solid-state lithium battery compartment structure for unmanned aircraft Figure 2 .

[0017] 1 Upper cover of the bin 1-1 Battery compartment positive output terminal 1-2 Upper cover connection hole 1-3 Battery compartment negative output ring 2 battery series 2-1 External thread of the chamber 2-2 Convex wall on the warehouse 2-3 Connection hole between the tank body and the upper cover 2-4 Bin body lining ring 2-4-1 Bin liner hole 3. Tightening screw 4. Bottom cover of the silo 4-1 miniUSB charging port 5 PCB circuit board 5-1 Microcontroller 5-2 A / D Converter 5-3 Photocoupler 5-4 Power chip 6 Solid-state battery body 6-1 Battery Cell 6-2 Battery negative electrode cover 6-2-1 Negative electrode cover lead-out terminal 6-3 Solid electrolyte 6-4 Battery positive electrode cover 6-4-1 Positive electrode cover lead-out terminal DETAILED DESCRIPTION

[0018] The specific implementation of the present invention is described below in conjunction with the accompanying drawings: A sandwich-type solid-state lithium battery cell for use in an unmanned aircraft, comprising an upper end cover (1) of a cell body, a battery series connection body (2), a tightening screw (3), a bottom plate cover (4) of the cell body, a PCB circuit board (5), a solid-state battery body (6), a battery cell (6-1), a battery negative electrode cover (6-2), a negative electrode cover lead-out terminal (6-2-1), a solid electrolyte (6-3), a battery positive electrode cover (6-4), and a positive electrode cover lead-out terminal (6-4-1), characterized in that: The solid electrolyte (6-3) is composed of a circular lithium sulfide polymer with a thickness of 3 mm. The sulfide polymer solid electrolyte is used as an intermediate liner. A polymer of a positive polarity material is injected into the upper surface of the liner by a doping technique and an ion implantation method to form a positive electrode cover (6-4). A polymer of a negative polarity material is injected into the lower surface of the intermediate body to form a negative electrode cover (6-2). Then, a polymer glue that reduces the interface resistance is used to bond the positive electrode cover (6-4) and the solid electrolyte (6-3). Similarly, a polymer glue that reduces the interface resistance is used to bond the negative electrode cover (6-2) and the solid electrolyte (6-3). Thus, the positive and negative ions on the circular positive electrode cover (6-4) and the circular negative electrode cover (6-2) are embedded in the upper and lower surfaces of the intermediate liner. In the embodiment, when three battery cells (6-1) are assembled in series, the solid-state battery body (6) is placed on the inner liner ring (2-4) of the chamber body, and two tightening screws (3) made of insulating engineering plastic are selected to pass through the negative electrode cover lead-out terminal (6-2-1) and the positive electrode cover lead-out terminal (6-4-1) in sequence and then pressurized and connected to the inner liner ring hole of the chamber body, so that the battery cell (6-1) and the battery chamber are connected as a whole; In the embodiment, when three battery cells (6-1) are assembled in parallel, the solid-state battery body (6) is placed on the inner liner ring (2-4) of the chamber body. At this time, two conductive metal tightening screws (3) can be selected to pass through the negative electrode cover lead-out terminal (6-2-1) and the positive electrode cover lead-out terminal (6-4-1) and then be pressurized and connected to the inner liner ring hole of the chamber body, wherein the tightening screw (3) passing through the negative electrode cover lead-out terminal (6-2-1) is the negative electrode, and the other tightening screw (3) passing through the positive electrode cover lead-out terminal (6-4-1) is the positive electrode; For the convenience of design, two small mounting holes are also opened on the circular PCB circuit board (5) to facilitate connection with the negative electrode cover lead-out terminal (6-2-1) and the positive electrode cover lead-out terminal (6-4-1); The circular PCB circuit board (5) is provided with a sandwich-type solid-state lithium battery intelligent management circuit, and the PCB circuit board (5) comprises a single-chip computer (5-1), an A / D converter (5-2), two photoelectric couplers (5-3), two power chips (5-4), and two digital temperature sensors (5-5), wherein a resident management program is solidified in the single-chip computer (5-1); The assembly process of the sandwich-type solid-state lithium battery compartment for an unmanned aircraft is as follows: a stainless steel screw passes through an upper cover connection hole (1-2) to connect the upper cover (1) of the compartment body with a connection hole (2-3) between the compartment body and the upper cover; a compartment outer thread (2-1) is engraved on the battery series body (2), and a user can conveniently screw it into a designated position of the unmanned aircraft, or directly screw it into a flight control motor.

[0019] Furthermore, the upper end cover (1) of the bin body, the battery series connection body (2), and the bottom plate cover (4) of the bin body are all injection-molded high-temperature resistant engineering plastics, wherein a circular metal plate is embedded in the center of the upper end cover (1) as the positive output terminal (1-1) of the battery bin, and a ring-shaped metal plate is embedded in the secondary outer ring of the upper end cover (1) as the negative output ring (1-3) of the battery bin, and a special-shaped square hole is opened in the center of the bottom plate cover (4) of the bin body, and a miniUSB charging seat (4-1) is embedded therein.

[0020] Furthermore, the digital temperature sensor (5-5) is of model DS18B20, adopts TO-92 package, and can provide digital temperature measurement values ​​with 9-bit or 12-bit resolution, wherein when the measurement accuracy is plus or minus 2°C, the temperature measurement range is -55°C to +125°C; when the measurement accuracy is selected to be plus or minus 0.5°C, the temperature measurement range is -10°C to +85°C.

[0021] Furthermore, the solid electrolyte (6-3) is a solid lithium polymer that uses a sulfide material as an intermediate lining, is non-flammable, and does not expose liquid, and has a thickness of 3 mm.

[0022] Furthermore, the circular battery positive electrode cover (6-4) is made of a lithium-rich manganese-based positive electrode polymer material, and the circular battery negative electrode cover (6-1) is made of a new type of graphite polymer material.

[0023] Furthermore, the appearance of the battery negative electrode cover (6-2) and the battery positive electrode cover (6-4) are both disc-shaped bodies with lead-out terminals. To enhance the friction force, the bottom of the battery negative electrode cover (6-2) in contact with the solid electrolyte (6-3) has convex points, and the bottom of the battery positive electrode cover (6-4) in contact with the solid electrolyte (6-3) has convex grid ribs.

[0024] Furthermore, the single-chip microcomputer chip (5-1) is a core control device of a sandwich-type solid-state lithium battery compartment, adopts an LQFP package, and has 64 pins. Beneficial Effects

[0025] The sandwich-type solid-state lithium battery compartment for unmanned aircraft proposed by the present invention has the following significant beneficial effects: The most substantial improvement of the present invention is that it proposes a sandwich-type solid-state lithium battery compartment design for use in unmanned aircraft that is completely different from the traditional technical ideas.

[0026] First, in order to reduce the topological structure of the battery compartment, the solid-state battery in the embodiment has an extremely simplified design, that is, it has "three no's": first, there is no diaphragm between the positive and negative electrodes; second, there is no ear pole; third, there is no special exhaust hole.

[0027] Second, the solid-state battery in the embodiment is called a biscuit-type solid-state battery because this type of battery can be very thin and has an ultra-large energy density, with a theoretical value of usually 650Wh / kg.

[0028] Third, because the solid electrolyte used has stable chemical properties, its quality consistency is very good, it can be derived into many varieties, and it is less affected by temperature. In the most unfavorable situation, the battery is protected by the battery compartment and the hazards of the battery will not leak out. Even under the condition of a needle puncture short circuit, the battery compartment will not explode.

[0029] Fourth, at present, there are no solid-state battery compartments with an integrated topology structure on the market. Traditional soft-pack batteries mostly use rectangular plug-in sockets, which are now transformed into biscuit-shaped circular spiral assemblies, which will greatly improve the completeness of use, allowing the solid-state battery compartment to begin a full-strength expansion under the conditions of the most economical system and overall optimality. In particular, other compartments that can be directly installed on each rotor motor of the unmanned aircraft will completely solve the PACK problem caused by the hybrid expansion of batteries on unmanned aircraft, thereby providing a relatively complete power supply solution for unmanned aircraft that require lightweight and long-range requirements, and its application prospects have become very broad.

[0030] In this specification, specific implementation examples are used to illustrate the principles and operation modes of the present invention, which are only used to help understand the core idea of ​​the present invention and should not be understood as limiting the present invention. It is understood by those skilled in the art that various changes made to the present invention in form and detail without departing from the spirit and scope of the present invention defined in the attached claims are within the scope of protection of the present invention.

Claims

1. A sandwich-type solid-state lithium battery cell for use in an unmanned aircraft, in this embodiment, comprising an upper end cover (1) of a cell body, a battery series connection body (2), a tightening screw (3), a bottom plate cover (4) of the cell body, a PCB circuit board (5), a solid-state battery body (6), a battery cell (6-1), a battery negative electrode cover (6-2), a negative electrode cover lead-out terminal (6-2-1), a solid electrolyte (6-3), a battery positive electrode cover (6-4), and a positive electrode cover lead-out terminal (6-4-1), characterized in that: The solid electrolyte (6-3) is composed of a circular lithium sulfide polymer with a thickness of 3 mm. The sulfide polymer solid electrolyte is used as an intermediate liner. A polymer of a positive polarity material is injected into the upper surface of the liner by a doping technique and an ion implantation method to form a positive electrode cover (6-4). A polymer of a negative polarity material is injected into the lower surface of the intermediate body to form a negative electrode cover (6-2). Then, a polymer glue that reduces the interface resistance is used to bond the positive electrode cover (6-4) and the solid electrolyte (6-3). Similarly, a polymer glue that reduces the interface resistance is used to bond the negative electrode cover (6-2) and the solid electrolyte (6-3). Thus, the positive and negative ions on the circular positive electrode cover (6-4) and the circular negative electrode cover (6-2) are embedded in the upper and lower surfaces of the intermediate liner. In this embodiment, when three battery cells (6-1) are assembled in series, the solid-state battery body (6) is placed on the inner liner ring (2-4) of the chamber body, and two tightening screws (3) made of insulating engineering plastic are selected to pass through the negative electrode cover lead-out terminal (6-2-1) and the positive electrode cover lead-out terminal (6-4-1) in sequence and then pressurized and connected to the inner liner ring hole of the chamber body, so that the battery cell (6-1) and the battery chamber are connected as a whole; In this embodiment, when three battery cells (6-1) are assembled in parallel, the solid-state battery body (6) is placed on the inner liner ring (2-4) of the chamber body. At this time, two conductive metal tightening screws (3) can be selected to pass through the negative electrode cover lead-out terminal (6-2-1) and the positive electrode cover lead-out terminal (6-4-1) and then be pressurized and connected to the inner liner ring hole of the chamber body, wherein the tightening screw (3) passing through the negative electrode cover lead-out terminal (6-2-1) is the negative electrode, and the other tightening screw (3) passing through the positive electrode cover lead-out terminal (6-4-1) is the positive electrode; For the convenience of design, two small mounting holes are also opened on the circular PCB circuit board (5) to facilitate connection with the negative electrode cover lead-out terminal (6-2-1) and the positive electrode cover lead-out terminal (6-4-1); The circular PCB circuit board (5) is provided with a sandwich-type solid-state lithium battery intelligent management circuit, and the PCB circuit board (5) comprises a single-chip computer (5-1), an A / D converter (5-2), two photoelectric couplers (5-3), two power chips (5-4), and two digital temperature sensors (5-5), wherein a resident management program is solidified in the single-chip computer (5-1); The assembly process of the sandwich-type solid-state lithium battery compartment for an unmanned aircraft is as follows: a stainless steel screw passes through an upper cover connection hole (1-2) to connect the upper cover (1) of the compartment body with a connection hole (2-3) between the compartment body and the upper cover; a compartment outer thread (2-1) is engraved on the battery series body (2), and a user can conveniently screw it into a designated position of the unmanned aircraft, or directly screw it into a flight control motor.

2. The sandwich-type solid-state lithium battery compartment for use in an unmanned aircraft according to claim 1, characterized in that: The upper end cover (1) of the bin body, the battery series connection body (2), and the bottom plate cover (4) of the bin body are all injection-molded high-temperature resistant engineering plastics, wherein a circular metal plate is embedded in the center of the upper end cover (1) as the positive output terminal (1-1) of the battery bin, and a ring-shaped metal plate is embedded in the secondary outer ring of the upper end cover (1) as the negative output ring (1-3) of the battery bin. A special-shaped square hole is opened in the center of the bottom plate cover (4) of the bin body, and a miniUSB charging seat (4-1) is embedded therein.

3. The sandwich-type solid-state lithium battery compartment for unmanned aircraft according to claim 1, characterized in that: The digital temperature sensor (5-5) is of model DS18B20, which adopts TO-92 package and can provide digital temperature measurement values ​​with 9-bit or 12-bit resolution. When the measurement accuracy is plus or minus 2°C, the temperature measurement range is -55°C to +125°C; when the measurement accuracy is selected to be plus or minus 0.5°C, the temperature measurement range is -10°C to +85°C.

4. The sandwich-type solid-state lithium battery compartment for unmanned aircraft according to claim 1, characterized in that: The solid electrolyte (6-3) is a solid lithium polymer that uses a sulfide material as an intermediate lining, is non-flammable, and does not expose liquid, and has a thickness of 3 mm.

5. The sandwich-type solid-state lithium battery compartment for unmanned aircraft according to claim 1, characterized in that: The circular battery positive electrode cover (6-4) is made of a lithium-rich manganese-based positive electrode polymer material, and the circular battery negative electrode cover (6-1) is made of a new type of graphite polymer material.

6. The sandwich-type solid-state lithium battery compartment for use in an unmanned aircraft according to claim 1 or claim 5, characterized in that: The appearance of the battery negative electrode cover (6-2) and the battery positive electrode cover (6-4) are both disc-shaped bodies with lead-out terminals. To enhance the friction force, the bottom of the battery negative electrode cover (6-2) in contact with the solid electrolyte (6-3) has convex points, and the bottom of the battery positive electrode cover (6-4) in contact with the solid electrolyte (6-3) has convex grid ribs.

7. The sandwich-type solid-state lithium battery compartment for unmanned aircraft according to claim 1, characterized in that: The single-chip microcomputer chip (5-1) is the core control device of the sandwich-type solid-state lithium battery compartment, adopts LQFP packaging, and has 64 pins.

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