CN112751073B - Structurally integrated battery and equipment with battery - Google Patents
Structurally integrated battery and equipment with battery Download PDFInfo
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- CN112751073B CN112751073B CN202011390496.XA CN202011390496A CN112751073B CN 112751073 B CN112751073 B CN 112751073B CN 202011390496 A CN202011390496 A CN 202011390496A CN 112751073 B CN112751073 B CN 112751073B
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- Prior art keywords
- battery
- negative electrode
- framework
- positive electrode
- integrated battery
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- 239000007784 solid electrolyte Substances 0.000 claims abstract description 57
- 239000007773 negative electrode material Substances 0.000 claims abstract description 20
- 239000007774 positive electrode material Substances 0.000 claims abstract description 19
- 238000004146 energy storage Methods 0.000 claims abstract description 15
- 239000010405 anode material Substances 0.000 claims description 13
- 239000011148 porous material Substances 0.000 claims description 9
- 238000004378 air conditioning Methods 0.000 claims description 6
- 230000001788 irregular Effects 0.000 claims description 6
- 239000010406 cathode material Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000004065 semiconductor Substances 0.000 claims description 4
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 10
- 229910052744 lithium Inorganic materials 0.000 description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000005279 LLTO - Lithium Lanthanum Titanium Oxide Substances 0.000 description 1
- 229910013641 LiNbO 3 Inorganic materials 0.000 description 1
- 229910012305 LiPON Inorganic materials 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- YWJVFBOUPMWANA-UHFFFAOYSA-H [Li+].[V+5].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O Chemical compound [Li+].[V+5].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O YWJVFBOUPMWANA-UHFFFAOYSA-H 0.000 description 1
- KFDQGLPGKXUTMZ-UHFFFAOYSA-N [Mn].[Co].[Ni] Chemical compound [Mn].[Co].[Ni] KFDQGLPGKXUTMZ-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 229910000664 lithium aluminum titanium phosphates (LATP) Inorganic materials 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- -1 nickel cobalt aluminum Chemical compound 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- 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
- H01M10/04—Construction or manufacture in general
-
- 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 relates to the technical field of energy storage, and provides a structure integrated battery which comprises a positive electrode network structure, wherein a solid electrolyte layer and a negative electrode framework are further arranged in grids of the positive electrode network structure, a positive electrode material is arranged between the positive electrode network structure and the solid electrolyte layer, a negative electrode material is arranged between the solid electrolyte layer and the negative electrode framework, and the positive electrode network structure and the negative electrode framework provide a supporting structure so that the structure integrated battery has both a structure function and a battery energy storage function. In addition, the structure integrated batteries are embedded into the equipment structure of the battery pack to be installed in a distributed mode, so that energy devices and structural members can be fused efficiently, the weight of equipment is reduced, the volume of the equipment is reduced, the effective load of the equipment is increased, and the service life of the equipment is prolonged.
Description
[ field of technology ]
The invention relates to the technical field of energy storage, in particular to a structurally integrated battery and a device with the battery.
[ background Art ]
For traditional electronic equipment, electric automobiles or unmanned aerial vehicles, the common practice is to arrange batteries in a concentrated manner in a machine body, and the volume weight of a battery pack is large. In the existing battery installation, because the battery pack is more concentrated in installation, the support structure additionally arranged in the corresponding electronic equipment, the electric crane or the unmanned aerial vehicle is often required to provide an installation accommodating space for the battery pack, and therefore, the additional space is required to be arranged for installing and fixing the corresponding battery pack, and therefore, the whole volume and the weight of the equipment with the battery are large, and therefore, a novel battery structure is needed to be provided, so that the problems of large volume and large weight of the battery pack are solved.
[ invention ]
In order to solve the technical problems of large volume and heavy weight of a battery pack and a device provided with the battery in the prior art, the invention provides a structure integrated battery and a device with the battery.
In order to solve the technical problems, the invention provides the following technical scheme: the structure integrated battery comprises a positive electrode network structure, wherein the positive electrode network structure comprises a plurality of continuous grids, the grids are formed by splicing positive electrode frameworks, a solid electrolyte layer and a negative electrode framework are further arranged in the grids of the positive electrode network structure, a positive electrode material is arranged between the positive electrode network structure and the solid electrolyte layer, the negative electrode framework comprises a porous structure, pores capable of being filled with the negative electrode material are formed between the solid electrolyte layer and the negative electrode framework and in the negative electrode framework, and the positive electrode network structure and the negative electrode framework provide a supporting structure so that the structure integrated battery has a structure function and a battery energy storage function;
the structure integrated battery is prepared by the following steps: step S1, providing a negative electrode framework with a porous structure;
step S2, filling a negative electrode material in the porous structure of the negative electrode framework;
step S3, growing a solid electrolyte layer on the surface of the anode material, and filling the anode material between the solid electrolyte layer and the anode framework to obtain a battery prefabricated member;
step S4, providing a plurality of positive electrode frameworks, mutually splicing the positive electrode frameworks to form a network structure for accommodating a plurality of battery prefabricated parts, arranging the battery prefabricated parts in the network structure, and filling positive electrode materials between the positive electrode frameworks and the solid electrolyte layer; a kind of electronic device with high-pressure air-conditioning system
Step S5, respectively communicating the positive electrode framework and the negative electrode framework to obtain the integrated battery with the required structure; or (b)
The structure integrated battery is prepared by the following steps: step P1, providing an anode network structure, wherein the anode network structure comprises a plurality of grids, and the grids are formed by mutually splicing anode frameworks;
step P2, forming a negative electrode framework in the grid; a kind of electronic device with high-pressure air-conditioning system
Step P3, forming a solid electrolyte layer between the grid and the negative electrode framework, wherein the negative electrode framework comprises a porous structure, and negative electrode materials capable of being filled are further arranged between the negative electrode framework and the solid electrolyte layer and in the negative electrode framework; and filling a positive electrode material between the positive electrode framework and the solid electrolyte layer.
Preferably, the negative electrode framework in the structure integrated battery is connected in series.
Preferably, a sensing control unit is further arranged in the negative electrode framework so as to detect operation data of the structure integrated battery.
Preferably, the negative electrode framework comprises a porous structure, and pores filled with a negative electrode material are arranged between the negative electrode framework and the solid electrolyte layer and in the negative electrode framework.
Preferably, the cross section of the grid of the positive electrode network structure is any one of regular hexagon, circle, square, ellipse and irregular pattern.
Preferably, the positive electrode network structure comprises any one or a combination of a plurality of metal frameworks, conductive carbon fiber frameworks and conductive semiconductor frameworks.
The invention also provides the following technical scheme for solving the technical problems: a battery-powered device comprising a structurally integrated battery as described above as a housing or structural member of the battery-powered device; the positive electrode frameworks between the adjacent structure integrated battery units are mutually spliced to form a continuous positive electrode network structure.
Preferably, the equipment with the battery comprises any one or more of an electronic device, an electric vehicle and a flying device.
Compared with the prior art, the invention provides the structure integrated battery and the equipment with the battery, which have the following beneficial effects:
the structure integrated battery provided by the invention comprises an anode network structure, wherein a solid electrolyte layer and a cathode framework are further arranged in a grid of the anode network structure, an anode material is arranged between the anode network structure and the solid electrolyte layer, and a cathode material is arranged between the solid electrolyte layer and the cathode framework, and the anode network structure and the cathode framework provide a supporting structure so that the structure integrated battery has a structure function and a battery energy storage function. In addition, the structure integrated batteries are embedded into the equipment structure of the battery pack to be installed in a distributed mode, so that energy devices and structural members can be fused efficiently, the weight of equipment is reduced, the volume of the equipment is reduced, the effective load of the equipment is increased, and the service life of the equipment is prolonged.
Further, the positive electrode frameworks are mutually spliced to form a continuous positive electrode network structure. The structural strength of the whole battery composed of a plurality of structurally integrated battery units can be further enhanced, and the occupied volume of the battery can be further reduced.
In the present invention, in order to improve structural stability of the structurally integrated battery in which the negative electrode frames are connected in series, it is possible to improve the integrity of the negative electrode frames of the plurality of structurally integrated battery cells 10 and to simplify the manufacturing process.
The sensor control unit is arranged in the structure integrated battery, and can detect the temperature, pressure, current, potential, internal resistance and the like in the structure integrated unit in real time, so that the controllability, stability and safety of the battery are improved.
In order to further improve the structural strength of the structurally integrated battery cell, the negative electrode skeleton may be provided with a porous structure, and pores filled with a negative electrode material are provided between the negative electrode skeleton and the solid electrolyte and in the negative electrode skeleton. The anode framework with the porous structure can provide powerful support for the solid electrolyte, and the anode material filled in the pores can further improve the overall structural strength and simultaneously ensure the stability of the overall operation of the battery.
In the invention, the cross section of the grid of the positive electrode network structure is any one of regular hexagon, circle, square, ellipse and irregular graph. Different shapes can meet the requirements of diversified battery device use scenes.
The invention provides a device with a battery, which comprises the structure integrated battery, wherein the structure integrated battery is used as a shell or a structural member of the device with the battery. The multifunctional structure energy storage composite material can bear and serve as a structural material when storing electric energy, so that the quality of the system can be effectively reduced, the volume of the system is reduced, the design is simplified, and the efficiency of the system is improved. The distributed energy, structure and information are integrated, and the energy and information are coupled, so that the programmable and self-adaptive distributed energy support is realized.
The equipment with the battery comprises any one or more of an electronic device, an electric vehicle and a flying device. The structure integrated battery can be used as a structural member of equipment with a battery, and can also be used as a chassis of a flying device, so that the limited space of the equipment with the battery is fully utilized, and the lithium battery with integrated structure and function is arranged in the space, so that the equipment with the battery can further lighten the weight and the volume of the equipment with the battery while meeting the original running requirement.
The preparation method of the structure integrated battery can prepare and obtain the battery which meets the structure requirement and the battery energy storage requirement simultaneously, so that the preparation process can be controlled while the performance requirement of a structural member is met, and the stability and the safety of the prepared structure integrated battery can be improved.
[ description of the drawings ]
Fig. 1 is a schematic plan view of a structurally integrated battery cell according to a first embodiment of the present invention.
Fig. 2 is an enlarged schematic view at a in fig. 1.
Fig. 3 is a schematic structural view of yet another embodiment shown in fig. 1.
Fig. 4 is a schematic perspective view of the structure-integrated battery power supply shown in fig. 1.
Fig. 5 is a schematic plan view of another embodiment of the structurally integrated battery power supply shown in fig. 1.
Fig. 6 is a schematic structural view of a structurally integrated battery according to a second embodiment of the present invention.
Fig. 7 is a schematic plan view of a splicing method of the structurally integrated battery.
Fig. 8 is a schematic plan view of another splicing method of the structurally integrated battery.
Fig. 9 is a schematic plan view of another splicing method of the structurally integrated battery.
Fig. 10 is a schematic structural view of a structurally integrated battery according to a third embodiment of the present invention.
Fig. 11 is a schematic view of a battery-equipped device according to a fourth embodiment of the present invention.
Fig. 12 is a schematic view of a fifth embodiment of the present invention providing a flying apparatus.
Fig. 13 is an enlarged schematic view shown at B in fig. 12.
Fig. 14 is an enlarged schematic view shown at C in fig. 12.
Fig. 15 is a schematic flowchart of a manufacturing method of a structurally integrated battery according to a sixth embodiment of the present invention.
Fig. 16 is a schematic view showing the steps of a method for manufacturing a structurally integrated battery according to another embodiment of the present invention.
The attached drawings are used for identifying and describing:
10. a structurally integrated battery cell; 101. a positive electrode frame; 102. a positive electrode material; 103. a negative electrode skeleton; 104. a negative electrode material; 105. a solid electrolyte layer; 11. a first accommodation chamber; 12. a second accommodation chamber; 1041. a void; 106. a sensing control unit;
20. a structurally integrated battery; 200. a positive electrode network structure; 210. a grid;
30. a structurally integrated battery; 301. a positive electrode network structure; 3011. a grid; 302. a solid electrolyte layer; 303. a negative electrode skeleton; 304. a positive electrode material; 305. a negative electrode material;
40. a device with a battery; 50. and a flying device.
[ detailed description ] of the invention
For the purpose of making the technical solution and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and examples of implementation. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Reference in the specification to "one embodiment," "a preferred embodiment," "an embodiment," or "embodiments" means that a particular feature, structure, characteristic, or function described in connection with the embodiment is included in at least one embodiment of the invention and may be included in more than one embodiment. The appearances of the phrases "in one embodiment," "in an embodiment," or "in various embodiments" in various places in the specification are not necessarily all referring to the same embodiment or embodiments.
Specific terminology is used throughout the description for the purpose of illustration and should not be taken in a limiting sense. The service, function or resource is not limited to a single service, function or resource; the use of these terms may refer to the relevant services, functions or resources of a packet, which may be distributed or aggregated.
Referring to fig. 1, a first embodiment of the present invention provides a structurally integrated battery unit 10, which includes a positive electrode framework 101, a positive electrode material 102, a negative electrode framework 103, a negative electrode material 104 and a solid electrolyte layer 105, wherein the positive electrode framework 101 is disposed on an outermost layer to provide an outer layer support for the structurally integrated battery unit 10; as shown in fig. 1, the positive electrode framework 101 encloses a first accommodating cavity 11, and the first accommodating cavity 11 may be filled with a positive electrode material 102. Within the positive electrode material 102, a second accommodating cavity 12 surrounded by a solid electrolyte layer 105 may be further included, and a negative electrode framework 103 is further disposed within the second accommodating cavity 12, where the negative electrode framework 103 may provide support for the solid electrolyte layer 105.
As shown in fig. 2, the anode skeleton 103 includes a porous structure, and pores 1041 that can be filled with an anode material 104 are provided between the anode skeleton 103 and the solid electrolyte layer 105, and within the anode skeleton 103. With such a structural arrangement, the strength of the structurally integrated battery cell 10 can be greatly enhanced.
It will be understood that, in order to make the strength of the shape formed by the positive electrode frame 101 higher, the cross section of the first accommodating cavity 11 formed by the positive electrode frame 101 is regular hexagon. In other implementations of the present embodiment, in order to meet different requirements, the cross section of the positive electrode framework 101 surrounding the forming shape may be any of a circle, a square, an ellipse, and an irregular pattern.
The size of the cross section of the first receiving chamber 11 in the structurally integrated battery cell 10 is 1 μm to 50mm, and in particular, the maximum size of the cross section thereof may also be 5 μm to 800 μm, 10 μm to 5mm, 500 μm to 10mm, 700 μm to 30mm, and 900 μm to 50mm. The definition of the maximum dimension of the cross section of the first housing cavity 11 may facilitate the integration of more structurally integrated battery cells 10 in a smaller volume. It will be appreciated that when the cross section of the first housing 11 is a regular hexagon, its maximum dimension is the diagonal of the regular hexagon; when the cross section of the first accommodating cavity 11 is circular, the maximum dimension thereof is the diameter of the circle; when the cross section of the first receiving chamber 11 is square, its maximum dimension is the diagonal of the square.
In order to make the battery performance and the structural performance of the structurally integrated battery cell 10 more excellent, the second receiving chamber 12 overlaps the center of the first receiving chamber 11. Specifically, the cross-section of the second accommodating cavity 12 may be identical to the cross-section of the first accommodating cavity 11, and may be regular hexagonal. It will be appreciated that the cross-section of the second receiving cavity 12 may also be circular in shape. In another implementation manner of this embodiment, as also shown in fig. 3, the shape of the first accommodating cavity 11 may be triangular, and the shape of the second accommodating cavity 12 may be circular.
In order to increase the battery capacity of the single structurally integrated battery cell 10 while securing the strength thereof, the length of the positive electrode frame 101 may be extended on the basis of maintaining the cross section of the positive electrode frame 101 enclosed to form a shape as required. As shown in fig. 4, the positive electrode frame 101 is a regular hexahedron. The cross section of the corresponding first receiving chamber 11 may be a regular hexagon.
In order to meet the requirements of the structural strength and the battery function of the structurally integrated battery cell 10, the materials of the positive electrode frame 101, the positive electrode material 102, the negative electrode frame 103, the negative electrode material 104 and the solid electrolyte layer 105 need to be further limited.
Specifically, the positive electrode frame 101 includes a metal frame, conductive carbon fibers, a conductive semiconductor frame, and the like. The positive electrode material 102 includes any one or a combination of several of lithium cobaltate, lithium iron phosphate, nickel cobalt manganese ternary material, nickel cobalt aluminum, lithium vanadium phosphate, lithium manganate, lithium nickelate, etc.
The negative electrode frame 103 may include, but is not limited to, any one or a combination of several materials selected from stainless steel, copper, nickel, aluminum, gold, silver, chromium, platinum, titanium, etc. In this embodiment, the negative electrode frame 103 may be understood as a porous structure material formed of the above-described materials. The negative electrode material 104 may include lithium metal, graphite, lithium titanate, silicon negative electrode alloy, and the like.
Further, the material of the solid electrolyte layer 105 disposed between the positive electrode material 102 and the negative electrode frame 103 may include, for example, li 3 N, sulfide, amorphous borate (Li) 2 O-B 2 O 3 –SiO 2 ) Silicate (Li) 2 O-V 2 O 5 -SiO 2 )、LiPON、Li3 x La 2/3-x TiO 3 (LLTO)，LiNbO 3 、LiTaO、Li 1+x MxTi 2-x (PO 4 ) 3 (LATP)、Li 3 OCl、Li 7 La 3 Zr 2 O 12 (LLZO), and the like.
Further, as shown in fig. 5, in other embodiments, in order to better monitor the structure-integrated battery cell 10 in real time, a sensing control unit 106 may be disposed in the second accommodating cavity 12 formed by enclosing the solid electrolyte layer 105. Specifically, the sensing control unit 106 may be disposed within the negative electrode frame 103. The corresponding sensing control unit 106 may detect the operation state of the structure integrated battery unit 10 in real time, so as to detect the temperature, pressure, current, potential, internal resistance, etc. of the structure integrated battery unit 10, so that the real-time detection of the information such as the dimension, pressure, etc. of the structure integrated battery unit 10 can be facilitated, and the safe and stable operation of each structure integrated battery unit 10 is ensured, so as to improve the service life and the safety of the structure integrated battery unit 10.
Referring to fig. 6, a second embodiment of the present invention provides a structurally integrated battery 20, wherein the structurally integrated battery 20 includes a plurality of structurally integrated battery cells 10 as described in the first embodiment. Specifically, as shown in fig. 7, the positive electrode frame 101 of the structure-integrated battery cell 10 encloses a shape whose cross section is a regular hexagon. When a plurality of the structurally integrated battery cells 10 are spliced, as shown in fig. 7, the positive electrode bobbins 101 between the adjacently disposed structurally integrated battery cells 10 are spliced with each other to form one continuous positive electrode network structure 200.
The positive electrode network structure 200 includes a plurality of grids 210, that is, the grids 210 are formed by splicing the positive electrode framework 101. Specifically, the solid electrolyte layer 105 and the negative electrode framework 103 disposed within the solid electrolyte layer 105 are disposed within the plurality of grids 210, wherein the negative electrode framework 103 may provide support for the solid electrolyte layer 105. In order to provide the battery 30 with the battery energy storage function, a positive electrode material 102 is provided between the positive electrode network structure 200 and the solid electrolyte layer 105, and a negative electrode material 104 is provided between the solid electrolyte layer 105 and the negative electrode frame 103.
The positive electrode network structure 200 and the negative electrode framework 103 provide a supporting structure for the whole battery, so that the structurally integrated battery 20 has both a structural function and a battery energy storage function. In the present embodiment, the single structurally integrated battery cell 10 also has a structural function and a battery energy storage function.
The plurality of structurally integrated battery cells 10 in the structurally integrated battery 20 may be arranged in a distributed manner. Further, in order to form a battery unit among the spliced plurality of the structurally integrated battery units 10, the positive electrode frame 101 and the negative electrode frame 103 among the structurally integrated battery units 10 are respectively electrically connected. Wherein, the positive electrode framework 101 is shared between the adjacently arranged structure integrated battery units 10.
Wherein, the electrical connection relationship between the plurality of structurally integrated battery cells 10 is a series connection. The positive electrode and the negative electrode of the whole battery are communicated to the positive electrode framework 101 and the negative electrode framework 103 through electric connection. It can be understood that in the structure-integrated battery 20, in order to improve the integration of the negative electrode frames of the plurality of structure-integrated battery cells 10 and simplify the manufacturing process, the negative electrode frames 103 may be connected in series during the manufacturing process.
As shown in fig. 8, the structurally integrated battery 20 may include a plurality of structurally integrated battery cells 10 distributed in layers in order to meet different use demands.
As shown in fig. 9, the structurally integrated battery 20 may also include a plurality of structurally integrated battery cells 10 that exhibit a stacked-like splice.
It will be appreciated that in actual use, the structurally integrated battery 20 may also be composed of a plurality of structurally integrated battery cells 10 of different sizes and/or different shapes to meet different structural strength requirements, and the structurally integrated battery 20 may be composed of two structurally integrated battery cells 10 of different sizes.
The specific limitations regarding the structurally integrated battery cell 10 are the same as those described in the first embodiment, and will not be repeated here.
The structurally integrated battery 20 can be used in products that are required to meet both the requirements of lightweight battery devices and structural strength as electronic devices, automobiles, flying devices, and the like.
Referring to fig. 10, a third embodiment of the present invention provides a structurally integrated battery 30, which includes a positive electrode network structure 301 having a positive electrode function of the battery, wherein the positive electrode network structure 301 is electrically connected with the positive electrode of the battery. As shown in fig. 10, the cross section of the positive electrode network structure 301 may be a honeycomb network structure formed by splicing a plurality of regular hexagons. It will be appreciated that in other embodiments, the positive electrode network structure 301 may also be formed by a regular or irregular pattern of tiles, such as circles, squares, etc. The particular shape of the positive electrode network structure may be selected based on the requirements of a particular battery performance or structural performance.
With continued reference to fig. 10, the positive electrode network structure 301 includes a plurality of grids 3011. The structurally integrated battery 30 further includes a solid electrolyte layer 302 disposed within the grid 3011 and a negative electrode frame 303 disposed within the solid electrolyte layer 302, wherein the negative electrode frame 303 can provide support for the solid electrolyte layer 302.
A positive electrode material 304 may be disposed between the mesh 3011 and the solid electrolyte layer 302 disposed therein. The negative electrode framework 303 is provided with a negative electrode material 305 capable of filling the pores thereof. Accordingly, it is understood that the anode material 305 may be filled between the solid electrolyte layer 302 and the anode skeleton 303, and within the pores (not numbered) of the anode skeleton 303.
Wherein the positive electrode network structure 301 includes any one or a combination of several of a metal skeleton, a conductive carbon fiber skeleton, a conductive semiconductor skeleton, and the like. In addition, the specific material definitions of the solid electrolyte layer 302, the anode frame 303, the cathode material 304, and the anode material 305 are the same as those of the first embodiment, and will not be described herein.
In the structure-integrated battery 30, a plurality of the negative electrode frames 303 are connected in series.
It is understood that the cross section of the grid 3011 of the positive electrode network structure 301 is any of regular hexagon, circle, square, ellipse, and irregular pattern.
Referring to fig. 11, a fourth embodiment of the present invention provides a battery-charging device 40 comprising at least one structurally integrated battery 20 as provided in the second embodiment or a structurally integrated battery 30 as provided in the third embodiment, wherein the structurally integrated battery 20 or 30 serves as a housing or structural member of the battery-charging device. The structure-integrated battery 20 or 30 can be used as a shell or a main structural member of electronic equipment, automobiles and flying devices due to the special structure thereof, so as to be used as a lithium battery with integrated structure and function. Can meet the design requirements of diversified products in the future.
Referring to fig. 12, a fifth embodiment of the present invention provides a flying device 50, where the flying device 50 may be an aircraft such as a carrier plane, a drone, or the like. The integrated battery 20 provided in the second embodiment or the integrated battery 30 provided in the third embodiment can be used as a structural member of a wing and a fuselage of the flying device 50, and can also be used for a chassis of the flying device 50, so that the limited space of the flying device 50 is fully utilized, and a lithium battery with integrated structural functions is arranged in the space, so that the flying device 50 can meet the requirement of flying intensity, and meanwhile, the weight of the flying device 50 can be further reduced, and the effective flying time can be improved.
Further, in the present embodiment, referring to fig. 13, in order to meet the requirements of different flying devices 50, at different positions of the flying devices 50, structurally integrated batteries 20 with different specifications and sizes may be provided. The structurally integrated battery 30 may have different battery energy storage capacities and structural strengths. As shown in fig. 14, in the wing, a plurality of the structurally integrated batteries 20 are formed by stacking a plurality of the structurally integrated battery cells 10 in the shape of a regular hexagonal column.
Referring to fig. 15, a sixth embodiment of the invention provides a method S60 for manufacturing a structurally integrated battery, which includes the following steps:
step S1, providing a negative electrode framework with a porous structure;
step S2, filling a negative electrode material in the porous structure of the negative electrode framework;
step S3, growing a solid electrolyte layer on the surface of the anode material to obtain a battery prefabricated member;
step S4, providing a plurality of positive electrode frameworks, forming a network structure for accommodating a plurality of battery prefabricated parts by the positive electrode frameworks, arranging the battery prefabricated parts in the network structure, and filling positive electrode materials between the positive electrode frameworks and the solid electrolyte layer; a kind of electronic device with high-pressure air-conditioning system
And S5, respectively communicating the positive electrode framework and the negative electrode framework to obtain the integrated battery with the required structure.
In the above steps S1 to S4, the specific materials of the negative electrode frame, the negative electrode material, the positive electrode frame, the positive electrode material, and the solid electrolyte layer are limited, and the descriptions in the above first embodiment are referred to, and are not repeated here.
In the above step S4, it is understood that the network structure is formed by enclosing the positive electrode frameworks, and the network structure formed by a specific plurality of positive electrode frameworks may be a layered structure, a stacked structure, or the like, and may be specifically determined based on the specific structure of the structurally integrated battery to be obtained.
Further, the order of the steps S1 to S5 and the preparation method are not unique, and as shown in fig. 16, in the sixth embodiment of the present application, the preparation method S60 of the structure-integrated battery may further include the steps of:
step P1, providing an anode network structure, wherein the anode network structure comprises a plurality of grids;
step P2, forming a negative electrode framework in the grid; a kind of electronic device with high-pressure air-conditioning system
Step P3, forming a solid electrolyte layer between the grid and the negative electrode framework, and further filling a negative electrode material between the negative electrode framework and the solid electrolyte layer; and filling a positive electrode material between the positive electrode framework and the solid electrolyte layer.
Wherein the negative electrode skeleton mentioned in the above step is a porous structure; filling a negative electrode material in the porous structure of the negative electrode framework; and forming a solid electrolyte layer on the surface of the anode material.
It will be appreciated that the order of steps described above is not the only order of steps. In other embodiments, the anode framework with the network structure or the anode network structure may be formed around the anode framework after the anode framework with the interval distribution is formed.
It is to be understood that in the present patent, the descriptions of the same technical features in the above-described first embodiment to fifth embodiment are mutually referred to. The examples and embodiments are given by way of illustration only and are not intended to limit the invention.
Compared with the prior art, the structure integrated battery, the preparation method thereof and the equipment with the battery have the following beneficial effects:
the structure integrated battery provided by the invention comprises an anode network structure, wherein a solid electrolyte layer and a cathode framework are further arranged in a grid of the anode network structure, an anode material is arranged between the anode network structure and the solid electrolyte layer, and a cathode material is arranged between the solid electrolyte layer and the cathode framework, and the anode network structure and the cathode framework provide a supporting structure so that the structure integrated battery has a structure function and a battery energy storage function. In addition, the structure integrated batteries are embedded into the equipment structure of the battery pack to be installed in a distributed mode, so that energy devices and structural members can be fused efficiently, the weight of equipment is reduced, the volume of the equipment is reduced, the effective load of the equipment is increased, and the service life of the equipment is prolonged.
Further, the positive electrode frameworks are mutually spliced to form a continuous positive electrode network structure. The structural strength of the whole battery composed of a plurality of structurally integrated battery units can be further enhanced, and the occupied volume of the battery can be further reduced.
The invention provides a device with a battery, which comprises the structure integrated battery, wherein the structure integrated battery is used as a shell or a structural member of the device with the battery. The multifunctional structure energy storage composite material can bear and serve as a structural material when storing electric energy, so that the quality of the system can be effectively reduced, the volume of the system is reduced, the design is simplified, and the efficiency of the system is improved. The distributed energy, structure and information are integrated, and the energy and information are coupled, so that the programmable and self-adaptive distributed energy support is realized.
The equipment with the battery comprises any one or more of an electronic device, an electric vehicle and a flying device. The structure integrated battery can be used as a structural member of equipment with a battery, and can also be used as a chassis of a flying device, so that the limited space of the equipment with the battery is fully utilized, and the lithium battery with integrated structure and function is arranged in the space, so that the equipment with the battery can further lighten the weight and the volume of the equipment with the battery while meeting the original running requirement.
In order to solve the technical problems, the invention also provides two methods for preparing the structure integrated battery, wherein the preparation method of the structure integrated battery can prepare and obtain the battery which simultaneously meets the structure requirement and the battery energy storage requirement, so that the preparation process can be controlled while the performance requirement of a structural member is met, and the stability and the safety of the prepared structure integrated battery can be improved.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the invention, but any modifications, equivalents, improvements, etc. within the principles of the present invention should be included in the scope of the present invention.
Claims (8)
1. A structurally integrated battery, characterized in that: the structure integrated battery comprises an anode network structure, wherein the anode network structure comprises a plurality of continuous grids, the grids are formed by mutually splicing anode frameworks, a solid electrolyte layer and a cathode framework are further arranged in the grids of the anode network structure, an anode material is arranged between the anode network structure and the solid electrolyte layer, the cathode framework comprises a porous structure, pores capable of being filled with the cathode material are formed in the cathode framework, and the anode network structure and the cathode framework provide a supporting structure so that the structure integrated battery has a structure function and a battery energy storage function;
the structure integrated battery is prepared by the following steps: step S1, providing a negative electrode framework with a porous structure;
step S2, filling a negative electrode material in the porous structure of the negative electrode framework;
step S3, growing a solid electrolyte layer on the surface of the anode material, and filling the anode material between the solid electrolyte layer and the anode framework to obtain a battery prefabricated member;
step S4, providing a plurality of positive electrode frameworks, mutually splicing the positive electrode frameworks to form a network structure for accommodating a plurality of battery prefabricated parts, arranging the battery prefabricated parts in the network structure, and filling positive electrode materials between the positive electrode frameworks and the solid electrolyte layer; a kind of electronic device with high-pressure air-conditioning system
Step S5, respectively communicating the positive electrode framework and the negative electrode framework to obtain the integrated battery with the required structure; or (b)
The structure integrated battery is prepared by the following steps: step P1, providing an anode network structure, wherein the anode network structure comprises a plurality of grids, and the grids are formed by mutually splicing anode frameworks;
step P2, forming a negative electrode framework in the grid; a kind of electronic device with high-pressure air-conditioning system
Step P3, forming a solid electrolyte layer between the grid and the negative electrode framework, wherein the negative electrode framework comprises a porous structure, and negative electrode materials capable of being filled are further arranged between the negative electrode framework and the solid electrolyte layer and in the negative electrode framework; and filling a positive electrode material between the positive electrode framework and the solid electrolyte layer.
2. The structurally integrated battery as set forth in claim 1, wherein: the negative electrode framework in the structure integrated battery is connected in series.
3. The structurally integrated battery as set forth in claim 1, wherein: and a sensing control unit is further arranged in the negative electrode framework so as to detect the operation data of the structure integrated battery.
4. The structurally integrated battery as set forth in claim 1, wherein: the negative electrode framework comprises a porous structure, and pores filled with a negative electrode material are arranged between the negative electrode framework and the solid electrolyte layer and in the negative electrode framework.
5. The structurally integrated battery as set forth in claim 1, wherein: the cross section of the grid of the positive electrode network structure is any one of regular hexagon, circle, square, ellipse and irregular graph.
6. The structurally integrated battery as set forth in claim 1, wherein: the positive electrode network structure comprises any one or a combination of a plurality of metal frameworks, conductive carbon fiber frameworks and conductive semiconductor frameworks.
7. An apparatus with battery, characterized in that: comprising a structurally integrated battery according to any one of claims 1-6 as a housing or structural member for a device with a battery, said positive electrode frameworks between adjacently arranged structurally integrated battery cells being spliced to each other to form a continuous positive electrode network structure.
8. The apparatus for charging a battery as defined in claim 7, wherein: the equipment with the battery comprises any one or more of an electronic device, an electric vehicle and a flying device.
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| CN113314757A (en) * | 2021-05-18 | 2021-08-27 | 电子科技大学 | Structure-integrated battery unit, preparation method thereof, structure-integrated battery pack and electronic equipment |
| CN113314758A (en) * | 2021-05-18 | 2021-08-27 | 电子科技大学 | Structure integrated battery unit, battery pack thereof and electronic equipment |
| CN113328129A (en) * | 2021-05-26 | 2021-08-31 | 电子科技大学 | Battery, battery framework, structured battery, structural member and production process |
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