CN115360358A - All-solid-state lithium battery based on illumination excitation and application - Google Patents
All-solid-state lithium battery based on illumination excitation and application Download PDFInfo
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- CN115360358A CN115360358A CN202211020932.3A CN202211020932A CN115360358A CN 115360358 A CN115360358 A CN 115360358A CN 202211020932 A CN202211020932 A CN 202211020932A CN 115360358 A CN115360358 A CN 115360358A
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- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 45
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 230000005284 excitation Effects 0.000 title claims abstract description 22
- 238000005286 illumination Methods 0.000 title claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000013543 active substance Substances 0.000 claims abstract description 11
- 239000003792 electrolyte Substances 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 239000007784 solid electrolyte Substances 0.000 claims description 30
- 239000007774 positive electrode material Substances 0.000 claims description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 239000006258 conductive agent Substances 0.000 claims description 11
- 239000006230 acetylene black Substances 0.000 claims description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 6
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- 239000010453 quartz Substances 0.000 claims description 6
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- 229910052724 xenon Inorganic materials 0.000 claims description 6
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 6
- 239000012780 transparent material Substances 0.000 claims description 5
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 4
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 4
- -1 polydimethylsiloxane Polymers 0.000 claims description 4
- 238000002834 transmittance Methods 0.000 claims description 4
- PFNQVRZLDWYSCW-UHFFFAOYSA-N (fluoren-9-ylideneamino) n-naphthalen-1-ylcarbamate Chemical compound C12=CC=CC=C2C2=CC=CC=C2C1=NOC(=O)NC1=CC=CC2=CC=CC=C12 PFNQVRZLDWYSCW-UHFFFAOYSA-N 0.000 claims description 3
- GKWLILHTTGWKLQ-UHFFFAOYSA-N 2,3-dihydrothieno[3,4-b][1,4]dioxine Chemical compound O1CCOC2=CSC=C21 GKWLILHTTGWKLQ-UHFFFAOYSA-N 0.000 claims description 3
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 claims description 3
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 229910001218 Gallium arsenide Inorganic materials 0.000 claims description 3
- 229910000846 In alloy Inorganic materials 0.000 claims description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 3
- 239000005083 Zinc sulfide Substances 0.000 claims description 3
- PFYQFCKUASLJLL-UHFFFAOYSA-N [Co].[Ni].[Li] Chemical compound [Co].[Ni].[Li] PFYQFCKUASLJLL-UHFFFAOYSA-N 0.000 claims description 3
- 239000005354 aluminosilicate glass Substances 0.000 claims description 3
- 239000005388 borosilicate glass Substances 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 239000002041 carbon nanotube Substances 0.000 claims description 3
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 3
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000002241 glass-ceramic Substances 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 229910021385 hard carbon Inorganic materials 0.000 claims description 3
- LHJOPRPDWDXEIY-UHFFFAOYSA-N indium lithium Chemical compound [Li].[In] LHJOPRPDWDXEIY-UHFFFAOYSA-N 0.000 claims description 3
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 claims description 3
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 claims description 3
- PSVBHJWAIYBPRO-UHFFFAOYSA-N lithium;niobium(5+);oxygen(2-) Chemical compound [Li+].[O-2].[O-2].[O-2].[Nb+5] PSVBHJWAIYBPRO-UHFFFAOYSA-N 0.000 claims description 3
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 claims description 3
- 229910001635 magnesium fluoride Inorganic materials 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 239000011572 manganese Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229920000447 polyanionic polymer Polymers 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 239000002210 silicon-based material Substances 0.000 claims description 3
- 239000002153 silicon-carbon composite material Substances 0.000 claims description 3
- 239000002109 single walled nanotube Substances 0.000 claims description 3
- 229910021384 soft carbon Inorganic materials 0.000 claims description 3
- 229920006132 styrene block copolymer Polymers 0.000 claims description 3
- 239000011366 tin-based material Substances 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 229910052984 zinc sulfide Inorganic materials 0.000 claims description 3
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 claims description 3
- 229910000572 Lithium Nickel Cobalt Manganese Oxide (NCM) Inorganic materials 0.000 claims 1
- FBDMTTNVIIVBKI-UHFFFAOYSA-N [O-2].[Mn+2].[Co+2].[Ni+2].[Li+] Chemical compound [O-2].[Mn+2].[Co+2].[Ni+2].[Li+] FBDMTTNVIIVBKI-UHFFFAOYSA-N 0.000 claims 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 10
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 10
- 230000010287 polarization Effects 0.000 abstract description 4
- 239000002131 composite material Substances 0.000 description 15
- 239000004642 Polyimide Substances 0.000 description 6
- 229920001721 polyimide Polymers 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 6
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 239000002390 adhesive tape Substances 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 4
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 description 4
- 230000001678 irradiating effect Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- 229910008029 Li-In Inorganic materials 0.000 description 3
- 229910006670 Li—In Inorganic materials 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000002270 dispersing agent Substances 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 2
- 229910015872 LiNi0.8Co0.1Mn0.1O2 Inorganic materials 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 229920002239 polyacrylonitrile Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- 229910015645 LiMn Inorganic materials 0.000 description 1
- 229910015643 LiMn 2 O 4 Inorganic materials 0.000 description 1
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000009831 deintercalation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/121—Organic material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/131—Primary casings; Jackets or wrappings characterised by physical properties, e.g. gas permeability, size or heat resistance
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
Abstract
An all-solid-state lithium secondary battery based on illumination excitation and application thereof belong to the technical field of all-solid-state lithium batteries, and the specific scheme is as follows: the utility model provides an all solid-state lithium secondary battery based on illumination arouses, includes positive pole piece, solid-state electrolyte I, negative pole piece and battery case, positive pole piece includes the anodal mass flow body and the anodal material of coating on it, its characterized in that: the positive current collector and the positive side of the battery shell are both light-transmitting. According to the invention, through the structural design of the battery, the positive active substance of the lithium ion battery is exposed under the light source, the light source is used as one of the direct energy sources of the all-solid-state lithium secondary battery, and on the premise of ensuring the capacity and safety performance of the all-solid-state battery, the polarization potential is reduced by utilizing photo-generated electrons and holes, so that the rate capability of the conventional solid-state lithium battery is obviously improved.
Description
Technical Field
The invention belongs to the technical field of all-solid-state lithium batteries, and particularly relates to an all-solid-state lithium secondary battery based on illumination excitation and application thereof.
Background
Energy crisis and environmental problems restrict the sustainable development of the economy and society, and the development and application of clean energy and efficient energy storage equipment are concerned. The lithium ion battery has the obvious advantages of long cycle life and good safety performance on the premise of keeping high voltage and high capacity of the lithium battery, and has wide application prospect and huge potential economic benefit in a plurality of fields such as 3C electronic products, new energy automobiles, power grid energy storage, national defense and space technologies and the like. The conventional lithium ion secondary battery is used as an energy storage device, and can be converted into chemical energy only through direct input of external electric energy, so that energy storage is realized. When the energy stored in the battery is consumed, if no proper charging equipment is available, the battery cannot be recycled. Therefore, if the lithium ion battery can utilize energy (such as light energy) which is more widely available and easily obtained, the problems of limited energy source and limited application environment can be fundamentally solved, and the application scenes of the lithium ion battery are greatly widened.
In addition, an important factor restricting the large-scale application of the electric automobile is that the energy density of the lithium ion battery is insufficient and the quick charging performance is poor. The performance of the battery is greatly damaged along with the problems of increased heat generation, lithium precipitation at the negative electrode and the like of the battery under high-power charge and discharge, so that the capacity attenuation of the battery is accelerated, the service life is shortened, and the like, and even safety accidents are caused. For a conventional lithium ion battery, a direct strategy (electrode material/structure design) or an indirect strategy (charging strategy design, battery thermal management) and the like are generally adopted to realize rapid charging. The electrode material/structure is complex in design and manufacture, high in cost and incapable of realizing large-scale industrial application; the problems of poor quick charging performance of the battery cannot be fundamentally solved by charging strategy design, battery thermal management and other modes. Therefore, it is urgent to develop an all solid-state lithium secondary battery having a simple structural design and excellent rate capability.
Based on the advantages and disadvantages of the conventional lithium ion battery and the significant problems, it is very necessary to invent an all-solid-state lithium secondary battery with improved rate capability by light excitation.
Disclosure of Invention
In order to solve the problems of limited energy source and high polarization potential of the lithium ion battery, the invention provides an all-solid-state lithium secondary battery based on illumination excitation and application thereof, so that the charging overpotential is reduced, and the rate capability of the battery is improved.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an all solid-state lithium secondary battery based on illumination arouses, includes positive pole piece, solid-state electrolyte I, negative pole piece and battery case, positive pole piece includes the anodal mass flow body and the anodal material of coating on it, the anodal mass flow body and battery case's positive pole side all are printing opacity.
Further, the material of the positive current collector is transparent, or the structure of the positive current collector is a light-transmitting structure, or the positive current collector is transparent and has a light-transmitting structure.
Further, the positive current collector comprises one of indium tin oxide, poly 3, 4-ethylenedioxythiophene, foamed nickel, carbon fiber cloth, single-walled carbon nanotubes, three-dimensional metal grids, nano silver grids and conductive fabrics.
Furthermore, the battery shell is made of a transparent material or a light-transmitting window is arranged on the positive electrode side of the battery shell, and an insulating transparent sheet is arranged on the light-transmitting window.
Further, the light transmittance of the insulating transparent sheet is greater than 80%.
Furthermore, the material of the battery case comprises one of polydimethylsiloxane and styrene block copolymer, and the insulating transparent sheet comprises quartz and GaF 2 One of gallium arsenide, zinc sulfide, zinc selenide, magnesium fluoride, alkali-free aluminosilicate glass and borosilicate glass.
Further, the positive electrode material comprises a positive electrode active substance, a conductive agent and a solid electrolyte II, the positive electrode active substance comprises one or more of lithium iron phosphate, lithium cobaltate, lithium manganate, lithium nickel cobalt aluminate and a lithium-rich manganese base, the conductive agent comprises one or more of acetylene black and carbon nano tubes, and the solid electrolyte II comprises one or more of a sulfide crystalline solid electrolyte, a sulfide glass and a glass ceramic solid electrolyte.
Further, the solid electrolyte I comprises one or a combination of a plurality of polymer solid electrolytes, sulfide solid electrolytes, oxide solid electrolytes and polyanion solid electrolytes; the negative pole piece comprises one or more of lithium metal, lithium indium alloy, silicon carbon composite material, silica material, silicon-based material, tin-based material, titanium niobate, lithium titanate, graphite, hard carbon and soft carbon.
The application of the all-solid-state lithium secondary battery based on illumination excitation is that the positive electrode side of the battery is exposed to a light source in the process of charging and discharging the battery.
Further, the light source comprises one or more of sunlight, xenon lamp, ultraviolet ray and laser.
Compared with the prior art, the invention has the beneficial effects that:
1) According to the invention, through the structural design of the battery, the anode active substance of the lithium ion battery is exposed to a light source, the light source is used as one of the direct energy sources of the all-solid-state lithium secondary battery, and the charge-discharge cycle is carried out under high multiplying power on the premise of ensuring the capacity and safety performance of the all-solid-state battery. Utilizing photo-generated electrons and holes, light irradiation induces the positive active material to generate a large amount of transition metal oxidation centers and free-moving Li + The method accelerates the redox reaction of the electrode and the lithium intercalation/deintercalation process of the active substance, obviously reduces the polarization potential and the overpotential, and finally obviously improves the rate capability of the conventional solid lithium battery.
2) The invention provides a new idea for the application scene of the all-solid-state battery and is beneficial to commercialization of the all-solid-state battery.
Drawings
FIG. 1 is a schematic diagram of an all-solid-state lithium battery device based on illumination excitation;
fig. 2 is a graph showing the charge and discharge cycle performance of the all-solid-state lithium battery based on light excitation prepared in example 1 in the presence or absence of light, respectively.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings and embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work based on the embodiments of the present invention belong to the protection scope of the present invention.
Detailed description of the invention
The utility model provides an all solid-state lithium secondary battery based on illumination arouses, includes positive pole piece, solid-state electrolyte I, negative pole piece and battery case, positive pole piece includes the anodal mass flow body and the anodal material of coating on it, the anodal mass flow body and battery case's positive pole side all are printing opacity.
Further, the material of the positive current collector is transparent, or the structure of the positive current collector is a light-transmitting structure, or the positive current collector is transparent and has a light-transmitting structure.
Further, the positive current collector comprises one of Indium Tin Oxide (ITO), poly 3, 4-ethylenedioxythiophene (PEDOT), foamed nickel, carbon fiber cloth, single-walled carbon nanotube, three-dimensional metal grid, nano silver grid and conductive fabric.
Furthermore, the battery shell is made of a transparent material or a light-transmitting window is arranged on the positive electrode side of the battery shell, and an insulating transparent sheet is arranged on the light-transmitting window.
Further, the light transmittance of the insulating transparent sheet is greater than 80%.
Furthermore, the material of the battery case comprises one of Polydimethylsiloxane (PDMS) and styrene block copolymer, and the insulating transparent sheet comprises quartz and GaF 2 One of gallium arsenide, zinc sulfide, zinc selenide, magnesium fluoride, alkali-free aluminosilicate glass and borosilicate glass.
Further, the positive electrode material comprises a positive electrode active substance, a conductive agent and a solid electrolyte II, wherein the positive electrode active substance comprises one or more of lithium iron phosphate, lithium cobaltate, lithium manganate, lithium nickel cobalt aluminate and a lithium-rich manganese base, the conductive agent comprises one or more of acetylene black and carbon nano tubes, and the solid electrolyte II comprises one or more of a sulfide crystalline solid electrolyte, a sulfide glass and a glass ceramic solid electrolyte.
Further, the cathode material further comprises a binder and a dispersant, wherein the binder comprises one or more of Polytetrafluoroethylene (PTFE), polyvinylidene fluoride (PVDF), styrene Butadiene Rubber (SBR), polyethylene oxide (PEO), polyacrylonitrile (PAN), styrene-ethylene-butylene-styrene copolymer (SEBS), styrene-butadiene-styrene copolymer (SBS) and Nitrile Butadiene Rubber (NBR), and the dispersant comprises one or more of N-methylpyrrolidone (NMP), ethyl Propionate (EP), acetonitrile (CAN) and Tetrahydrofuran (THF).
Further, the solid electrolyte I comprises one or more of a polymer solid electrolyte, a sulfide solid electrolyte, an oxide solid electrolyte and a polyanion solid electrolyte; the negative pole piece comprises one or more of lithium metal, lithium indium alloy, silicon carbon composite material, silica material, silicon-based material, tin-based material, titanium niobate, lithium titanate, graphite, hard carbon and soft carbon.
Detailed description of the invention
In one embodiment, the application of the all-solid-state lithium secondary battery based on illumination excitation is that the positive electrode side of the battery is exposed to a light source during the charging and discharging of the battery.
Further, the light source comprises one or more of sunlight, xenon lamp, ultraviolet ray and laser.
Detailed description of the invention
A preparation method of an all-solid-state lithium secondary battery based on illumination excitation comprises the following steps:
step one, all the following operations are completed in a glove box, a positive active substance, a solid electrolyte II and a conductive agent are uniformly mixed according to a certain proportion, fully ground to form a composite positive material, the composite positive material is uniformly dispersed on a positive current collector, and a positive pole piece is obtained after rolling;
processing a light transmission window on the positive electrode side of the battery shell, and installing an insulating transparent sheet with the light transmittance of more than 80% on the light transmission window;
step three, assembling the battery according to the arrangement mode of the positive pole piece | solid electrolyte | negative pole piece', and then loading the battery into a battery shell and sealing the battery shell;
and step four, irradiating the positive electrode side by using a light source to realize high-power charging and discharging of the battery.
Further, in the first step, the composite positive electrode material further comprises a binder and a dispersant.
Further, in the first step, the mass ratio of the positive electrode active substance to the composite positive electrode material is 60-97%, the mass ratio of the total amount of the solid electrolyte II and the binder to the composite positive electrode material is 2-30%, and the mass ratio of the conductive agent to the composite positive electrode material is 1-10%.
Further, in the first step, the rolling pressure of the positive pole piece is 5-500MPa, and the rolling time is 1-10 minutes.
Example 1
An all-solid-state lithium battery based on illumination excitation comprises the following steps:
step one, all the following operations are finished in a glove box by LiNi 0.8 Co 0.1 Mn 0.1 O 2 Is a positive electrode active material, li 6 PS 5 Cl is a solid electrolyte II, acetylene black is a conductive agent, and the weight ratio of Cl to acetylene black is 70:28:2, uniformly mixing, fully grinding to form a composite positive electrode material, uniformly dispersing the composite positive electrode material on an ITO current collector, and rolling for 5 minutes under 150MPa to obtain a positive electrode piece;
step two, using laser to drill a positive shell packaged by the button cell, wherein the aperture is 10mm, and packaging the positive shell by using a polyimide insulating adhesive tape;
step three, all the following operations are finished in a glove box, and step two is carried outThe obtained positive shell of the button cell is placed in a glove box according to LiNi 0.8 Co 0.1 Mn 0.1 O 2 Composite positive electrode | Li 6 PS 5 Assembling and sealing the battery by the Cl electrolyte Li-In alloy cathode arrangement mode, removing the polyimide insulating adhesive tape on one side of the anode, and filling a quartz insulating transparent sheet;
and step four, irradiating the positive electrode side by using a xenon lamp light source, and realizing stable charge-discharge circulation under the multiplying power of 5C. The gain effect is shown in the attached figure 2 of the specification, compared with the condition without a light source, the electrochemical polarization and the charging and discharging overpotential of the all-solid-state battery under the irradiation of a xenon light source are obviously reduced, the charging and discharging capacity is obviously improved, and the multiplying power performance of the battery is obviously improved.
Example 2
An all-solid-state lithium battery based on illumination excitation comprises the following steps:
step one, all the following operations are finished in a glove box by LiCoO 2 Is a positive electrode active material, li 6 PS 5 Cl is a solid electrolyte II, acetylene black is a conductive agent, and the weight ratio of Cl to acetylene black is 70:28:2, uniformly mixing, fully grinding to form a composite positive electrode material, uniformly dispersing the composite positive electrode material on an ITO current collector, and rolling for 5 minutes under 150MPa to obtain a positive electrode piece;
step two, punching a positive shell packaged by the button cell by using laser, wherein the aperture is 10mm, and packaging by using a polyimide insulating tape;
step three, all the following operations are finished in a glove box, the button cell positive electrode shell obtained in the step two is placed in the glove box, and the operation is carried out according to the' LiCoO 2 Composite positive electrode | Li 6 PS 5 Assembling and sealing the battery by the Cl electrolyte Li-In alloy cathode arrangement mode, removing the polyimide insulating adhesive tape on one side of the anode, and filling a quartz insulating transparent sheet;
and step four, irradiating the positive electrode side by using a xenon lamp light source, and realizing stable charge-discharge circulation under the multiplying power of 5C.
Example 3
An all-solid-state lithium battery based on illumination excitation comprises the following steps:
step one, all the following operations are finished in a glove box by using LiMn 2 O 4 Is a positive electrode active material, li 6 PS 5 Cl is a solid electrolyte II, acetylene black is a conductive agent, and the weight ratio of Cl to acetylene black is 70:28:2, uniformly mixing, fully grinding to form a composite positive electrode material, uniformly dispersing the composite positive electrode material on an ITO current collector, and rolling for 5 minutes under 150MPa to obtain a positive electrode piece;
step two, punching a positive shell packaged by the button cell by using laser, wherein the aperture is 10mm, and packaging by using a polyimide insulating tape;
step three, all the following operations are finished in a glove box, the button cell positive electrode shell obtained in the step two is placed in the glove box, and LiMn is adopted 2 O 4 Composite positive electrode | Li 6 PS 5 Assembling and sealing the battery by the Cl electrolyte Li-In alloy cathode arrangement mode, removing the polyimide insulating adhesive tape on one side of the anode, and filling a quartz insulating transparent sheet;
and step four, irradiating the positive electrode side by using a laser light source, and realizing stable charge-discharge circulation under the multiplying power of 5C.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides an all solid-state lithium secondary battery based on illumination arouses, includes positive pole piece, solid-state electrolyte I, negative pole piece and battery case, positive pole piece includes the anodal mass flow body and the anodal material of coating on it, its characterized in that: the positive current collector and the positive side of the battery shell are both light-transmitting.
2. The all-solid-state lithium secondary battery based on illumination excitation according to claim 1, characterized in that: the material of anodal mass flow body is transparent material, perhaps, the structure of anodal mass flow body is light-transmitting structure, perhaps, anodal mass flow body is transparent material and has light-transmitting structure.
3. The all-solid-state lithium secondary battery based on illumination excitation according to claim 1 or 2, characterized in that: the positive current collector comprises one of indium tin oxide, poly 3, 4-ethylene dioxythiophene, foamed nickel, carbon fiber cloth, single-walled carbon nanotubes, a three-dimensional metal grid, a nano silver grid and a conductive fabric.
4. The all-solid-state lithium secondary battery based on light excitation according to claim 1, characterized in that: the battery shell is made of transparent materials or a light-transmitting window is formed in the positive electrode side of the battery shell, and an insulating transparent sheet is arranged on the light-transmitting window.
5. The all-solid-state lithium secondary battery based on light excitation according to claim 4, characterized in that: the light transmittance of the insulating transparent sheet is greater than 80%.
6. The all-solid-state lithium secondary battery based on illumination excitation according to claim 4, wherein: the battery case is made of one of polydimethylsiloxane and styrene block copolymer, and the insulating transparent sheet comprises quartz and GaF 2 One of gallium arsenide, zinc sulfide, zinc selenide, magnesium fluoride, alkali-free aluminosilicate glass and borosilicate glass.
7. The all-solid-state lithium secondary battery based on illumination excitation according to claim 1, characterized in that: the positive electrode material comprises a positive electrode active substance, a conductive agent and a solid electrolyte II, wherein the positive electrode active substance comprises one or more of lithium iron phosphate, lithium cobaltate, lithium manganate, lithium nickel cobalt manganese oxide, lithium nickel cobalt aluminate and a lithium-rich manganese base, the conductive agent comprises one or more of acetylene black and a carbon nano tube, and the solid electrolyte II comprises one or more of a sulfide crystalline solid electrolyte, sulfide glass and a glass ceramic solid electrolyte.
8. The all-solid-state lithium secondary battery based on light excitation according to claim 1, characterized in that: the solid electrolyte I comprises one or a combination of a plurality of polymer solid electrolytes, sulfide solid electrolytes, oxide solid electrolytes and polyanion solid electrolytes; the negative pole piece comprises one or more of lithium metal, lithium indium alloy, silicon carbon composite material, silica material, silicon-based material, tin-based material, titanium niobate, lithium titanate, graphite, hard carbon and soft carbon.
9. Use of the light excitation-based all-solid-state lithium secondary battery according to any one of claims 1 to 8, wherein: during charging and discharging of the battery, the positive side of the battery is exposed to a light source.
10. Use according to claim 9, characterized in that: the light source comprises one or more of sunlight, xenon lamp, ultraviolet ray and laser.
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| CN102637896A (en) * | 2012-04-19 | 2012-08-15 | 北京理工大学 | Photo-assisted chargeable lithium ion secondary battery |
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| CN112310468A (en) * | 2019-07-31 | 2021-02-02 | 南京理工大学 | Light-assisted enhanced secondary battery and preparation method thereof |
| CN113410507A (en) * | 2021-06-07 | 2021-09-17 | 北京化工大学 | Novel light gain lithium-sulfur battery and preparation method thereof |
| CN113782815A (en) * | 2021-08-17 | 2021-12-10 | 浙江工业大学 | Lithium ion battery and method for activating dead lithium by light assistance |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102637896A (en) * | 2012-04-19 | 2012-08-15 | 北京理工大学 | Photo-assisted chargeable lithium ion secondary battery |
| CN112310468A (en) * | 2019-07-31 | 2021-02-02 | 南京理工大学 | Light-assisted enhanced secondary battery and preparation method thereof |
| CN110676338A (en) * | 2019-10-16 | 2020-01-10 | 东北大学 | Solar energy-assisted energy-saving rechargeable organic lithium-sulfur battery |
| CN113410507A (en) * | 2021-06-07 | 2021-09-17 | 北京化工大学 | Novel light gain lithium-sulfur battery and preparation method thereof |
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