CN111029647B - Preparation method of electrolyte with self-repairing function and solid-state battery - Google Patents

Preparation method of electrolyte with self-repairing function and solid-state battery Download PDF

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CN111029647B
CN111029647B CN201911326013.7A CN201911326013A CN111029647B CN 111029647 B CN111029647 B CN 111029647B CN 201911326013 A CN201911326013 A CN 201911326013A CN 111029647 B CN111029647 B CN 111029647B
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CN111029647A (en
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李杨
刘梓洋
赵冬梅
丁飞
刘兴江
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CETC 18 Research Institute
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2300/00—Electrolytes
    • H01M2300/0017—Non-aqueous electrolytes
    • H01M2300/0065—Solid electrolytes
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    • 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
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    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract

The invention belongs to the technical field of chemical power supplies, and particularly relates to a preparation method of an electrolyte with a self-repairing function and a solid-state battery. Dissolving vinyl triethoxysilane in deionized water for hydrolysis, adding ammonia water to form gel, separating, purifying and drying to obtain a solid product vinyl functionalized silica; dissolving vinyl functionalized silicon dioxide, a self-repairing functionalized group compound, an ionic conductive group compound, an initiator, inorganic conductive ceramic and lithium salt in a solvent according to a proportion, fully dispersing and mixing to obtain a precursor solution, casting to form a film, reacting at a certain temperature, and drying to obtain the self-repairing functional composite electrolyte; and step three, matching the self-repairing function composite electrolyte with the anode and the cathode to prepare the solid-state battery. The invention provides a self-repairing functional electrolyte with good mechanical strength and a solid-state battery with stable output.

Description

Preparation method of electrolyte with self-repairing function and solid-state battery
Technical Field
The invention belongs to the technical field of chemical power supplies, and particularly relates to a preparation method of an electrolyte with a self-repairing function and a solid-state battery.
Background
The key materials of the electrochemical energy storage device can be subjected to irreversible mechanical damage such as local cracks and breakage in the use process, and particularly in the special application fields such as extreme conditions or wearable equipment, the internal part of the energy storage device is more easily subjected to physical damage through repeated bending and deformation processes. These problems severely reduce energy storage and release stability, shorten the service life of the device, and even cause thermal runaway and other safety problems. Therefore, there is a need to develop an energy storage device with a self-repairing function, so as to reduce the performance loss caused by equipment damage to the maximum extent, and fundamentally realize high safety, high reliability and long-life energy storage.
The self-repairing polymer material is a self-repairing mechanism based on organism damage, and is a functional material for realizing self-healing at the internal crack, so that further growth of the crack can be effectively inhibited, material damage is avoided, safety is improved, and meanwhile, the service life is prolonged. In recent years, the development of self-healing polymeric materials suitable for use in electrochemical energy storage devices has become a research hotspot worldwide.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide an electrolyte with a self-repairing function and a preparation method of a solid-state battery. The self-repairing functional electrolyte with good mechanical strength and the solid-state battery with stable output are obtained by compounding the self-repairing group based on multiple hydrogen bonds, the ion conducting group, the crosslinking active site and the inorganic conductive ceramic.
In order to achieve the above purpose, the specific technical scheme adopted by the invention is as follows:
a preparation method of electrolyte with self-repairing function and solid-state battery comprises the following steps:
dissolving Vinyl Triethoxysilane (VTES) in deionized water, completely hydrolyzing by ultrasonic treatment, dropwise adding ammonia water to form gel, separating, purifying and drying to obtain a solid product vinyl functionalized silica which can be used as a crosslinking active site;
step two, mixing and dissolving vinyl functionalized silicon dioxide, a self-repairing functionalized group compound, an ion conductive group compound, an initiator, inorganic conductive ceramic and lithium salt in a solvent according to a proportion, and fully dispersing and mixing to obtain a precursor solution; casting the precursor solution into a film, reacting at a certain temperature, and drying to obtain the self-repairing functional composite electrolyte;
and step three, matching the self-repairing function composite electrolyte with the anode and the cathode to prepare the solid-state battery.
Further, the preparation method of the electrolyte with the self-repairing function and the solid-state battery comprises the following specific steps: step one, preparing vinyl functionalized silicon dioxide:
adding 3-4 parts by mass of triethoxymethylsilane into 25-32 parts by mass of deionized water, and continuously stirring for 48 hours until small droplets of the triethoxymethylsilane completely disappear; then 0.36-0.46 mass parts of ammonia water with the concentration of 25% is added into the solution dropwise, and stirring is continued for 24 hours until the sol-gel reaction is complete. Centrifuging by using a high-speed centrifuge to obtain white powdery particles, cleaning with ethanol for several times, removing residual precursors and impurities, and finally drying the obtained white powder in a vacuum oven at 50 ℃ to obtain vinyl functionalized silica for later use.
The particle diameter of the prepared vinyl functionalized silica particles is 100 nm-5 mu m, preferably 300 nm-2 mu m, and the mass of the vinyl functionalized silica is 0-10% of the mass of the self-repairing functionalized group compound, preferably 0.01% -1%.
Step two, preparing a precursor solution, which comprises the following steps: mixing 0.8-1 part by mass of vinyl functionalized silicon dioxide, 8 parts by mass of self-repairing functionalized groups, 0-3 parts by mass of ionic conductive group compounds, 0.004-0.01 part by mass of initiator, 0-0.4 part by mass of inorganic conductive ceramic and 1 part by mass of lithium salt at normal temperature in an ultrasonic and magnetic way until the materials are uniformly mixed, coating, and reacting for 24 hours at room temperature to 100 ℃, preferably 40-70 ℃; obtaining a hydrogen bond self-repairing composite electrolyte;
and thirdly, the positive electrode material of the solid-state battery in the fourth step is NCA or lithium iron phosphate, and the negative electrode material is metallic lithium.
Further, the self-repairing functional group compound is a compound containing multiple hydrogen bond groups, and comprises one or more of a ureido compound and an acrylic monomer.
Further, the ionic conductive group compound comprises one or more of polyethylene glycol (PEG), poly (ethylene glycol) methyl ether methacrylate (PEGMA), polyethylene oxide (PEO), polypropylene oxide (PPO), polyethylene succinate (PES), polypropylene carbonate (PPC), polyethylene carbonate (PEC), polytrimethylene carbonate (PTMC), poly epsilon-caprolactone (PCL) and copolymers (PTMC-PCL) obtained by ring-opening copolymerization of monomers of the poly epsilon-caprolactone and TMC monomers.
Further, the lithium salt includes lithium hexafluorophosphate (LiPF) 6 ) Lithium tetrafluoroborate (LiBF) 4 ) Lithium perchlorate (LiClO) 4 ) One or more combinations of lithium difluorooxalato borate (liofb), lithium bisoxalato borate (LiBOB), lithium bis (trifluoromethylsulfonyl) imide (LiTFSI), lithium bisfluorosulfonyl imide (LiFSI); the molar ratio of the ionic conductive group compound to the lithium salt is 50:1-1:10.
Further, the inorganic conductive ceramic includes Li 3x La 2/3-x TiO 3 、Li 5 La 3 M 2 O 12 (M＝Nb,Ta)、Li 1.3 The mass ratio in the electrolyte material is preferably 1% -30% by one or a combination of several of ti1.7al0.3 (PO 4) 3, li1+xalxge2-X (PO 4) 3, li3PO4, liPON, li4-xGe1-xPxS4, li7P2S8I, li S-P2S5, li3OX (x= F, cl, br, I), LLTO, LLTZO, li N.
Further, the initiator is one or a combination of more of azobisisobutyronitrile, azobisisoheptonitrile, or dimethyl azobisisobutyrate, and the mass ratio in the electrolyte material is preferably 0.01% to 1%.
Further, the solvent is one or more of tetrahydrofuran, propylene carbonate, dimethyl carbonate, methyl ethyl carbonate, diethyl carbonate, ethyl acetate, acetonitrile, isopropyl ether, acetone, butanone, isopropanol, butanol, hexane, cyclohexane, N-N dimethylacetamide, N-methyl-2-pyrrolidone, benzene, toluene, dimethyl sulfoxide, carbon tetrachloride, alkene trichloride and pyrrole.
Further, the solid state battery positive electrode material includes, but is not limited to, layered LiCoO 2 、LiNiO 2 And LiNi x Co 1- x O 2 Ternary LiNi 1/3 Mn 1/3 Co 1/3 O 2 And LiNi 0.85 Co 0.1 Al 0.05 O 2 Spinel LiMn 2 O 4 5V spinel LiNi 0.5 Mn 1.5 O 4 Phosphate LiMPO 4 (m=fe, mn), lithium-rich manganese-based positive electrode material Li [ Li x (MnM) 1-x ]O 2 (m=ni, co, fe), sulfur electrode.
Still further, the negative electrode material includes, but is not limited to, metallic lithium, lithium alloy Li x M (m= In, B, al, ga, sn, si, ge, pb, as, bi, sb, cu, ag, zn), carbon-based materials (graphite, amorphous carbon, mesophase carbon microspheres), silicon-based materials (silicon carbon materials, nano silicon), tin-based materials, lithium titanate (Li) 4 Ti 5 O 12 )。
The invention has the advantages and positive effects that:
the invention provides a preparation method of electrolyte with self-repairing function and solid-state battery, which adopts an in-situ crosslinking polymerization method to prepare the electrolyte with self-repairing function containing self-repairing groups based on multiple hydrogen bonds, ion conducting groups, crosslinking active sites and inorganic conductive ceramics, and obtains the solid-state battery system with good self-repairing function, ion conducting performance and machinability on the basis of the self-repairing function electrolyte with self-repairing function by regulating and controlling components, proportion, initiator types, usage amount, reaction temperature and time without adding liquid, thereby prolonging the service life of the battery.
Description of the drawings:
FIG. 1 is an optical image of a self-healing process for a self-healing polymer according to example 1 of the present invention;
fig. 2 is a graph showing the cycle performance of the solid-state battery in example 1 of the present invention;
FIG. 3 is a scanning electron micrograph of a self-repairing polymer according to example 2 of the present invention.
Detailed Description
The invention discloses a preparation method of an electrolyte with a self-repairing function and a solid-state battery, which comprises the following steps:
dissolving Vinyl Triethoxysilane (VTES) in deionized water, completely hydrolyzing by ultrasonic treatment, dropwise adding ammonia water to form gel, separating, purifying and drying to obtain a solid product vinyl functionalized silica which can be used as a crosslinking active site;
step two, mixing and dissolving vinyl functionalized silicon dioxide, a self-repairing functionalized group compound, an ion conductive group compound, an initiator, inorganic conductive ceramic and lithium salt in a solvent according to a proportion, and fully dispersing and mixing to obtain a precursor solution; casting the precursor solution into a film, reacting at a certain temperature, and drying to obtain the self-repairing functional composite electrolyte;
and step three, matching the self-repairing function composite electrolyte with the anode and the cathode to prepare the solid-state battery.
Preferably, the preparation method of the electrolyte with the self-repairing function and the solid-state battery comprises the following specific steps: step one, preparing vinyl functionalized silicon dioxide:
adding 3-4 parts by mass of triethoxymethylsilane into 25-32 parts by mass of deionized water, and continuously stirring for 48 hours until small droplets of the triethoxymethylsilane completely disappear; then 0.36-0.46 mass parts of ammonia water with the concentration of 25% is added into the solution dropwise, and stirring is continued for 24 hours until the sol-gel reaction is complete. Centrifuging by using a high-speed centrifuge to obtain white powdery particles, cleaning with ethanol for several times, removing residual precursors and impurities, and finally drying the obtained white powder in a vacuum oven at 50 ℃ to obtain vinyl functionalized silica for later use.
The particle diameter of the prepared vinyl functionalized silica particles is 100 nm-5 mu m, preferably 300 nm-2 mu m, and the mass of the vinyl functionalized silica is 0-10% of the mass of the self-repairing functionalized group compound, preferably 0.01% -1%.
Step two, preparing a precursor solution, which comprises the following steps: mixing 0.8-1 part by mass of vinyl functionalized silicon dioxide, 8 parts by mass of self-repairing functionalized groups, 0-3 parts by mass of ionic conductive group compounds, 0.004-0.01 part by mass of initiator, 0-0.4 part by mass of inorganic conductive ceramic and 1 part by mass of lithium salt at normal temperature in an ultrasonic and magnetic way until the materials are uniformly mixed, coating, and reacting for 24 hours at room temperature to 100 ℃, preferably 40-70 ℃; obtaining a hydrogen bond self-repairing composite electrolyte;
and thirdly, the positive electrode material of the solid-state battery in the fourth step is NCA or lithium iron phosphate, and the negative electrode material is metallic lithium.
Preferably, the self-repairing functional group compound is a compound containing multiple hydrogen bond groups, and comprises one or more of a urea-based compound and an acrylic monomer.
Preferably, the ionic conductive group compound comprises one or more of polyethylene glycol (PEG), poly (ethylene glycol) methyl ether methacrylate (PEGMA), polyethylene oxide (PEO), polypropylene oxide (PPO), polyethylene succinate (PES), polypropylene carbonate (PPC), polyethylene carbonate (PEC), polytrimethylene carbonate (PTMC), poly epsilon-caprolactone (PCL) and copolymers (PTMC-PCL) obtained by ring-opening copolymerization of monomers of the poly epsilon-caprolactone and TMC monomers.
Preferably, the lithium salt comprises lithium hexafluorophosphate (LiPF 6 ) Lithium tetrafluoroborate (LiBF) 4 ) Lithium perchlorate (LiClO) 4 ) One or more combinations of lithium difluorooxalato borate (liofb), lithium bisoxalato borate (LiBOB), lithium bis (trifluoromethylsulfonyl) imide (LiTFSI), lithium bisfluorosulfonyl imide (LiFSI); the molar ratio of the ionic conductive group compound to the lithium salt is 50:1-1:10.
Preferably, the inorganic conductive ceramic comprises Li 3x La 2/3-x TiO 3 、Li 5 La 3 M 2 O 12 (M＝Nb,Ta)、Li 1.3 The mass ratio in the electrolyte material is preferably 1% -30% by one or a combination of several of ti1.7al0.3 (PO 4) 3, li1+xalxge2-X (PO 4) 3, li3PO4, liPON, li4-xGe1-xPxS4, li7P2S8I, li S-P2S5, li3OX (x= F, cl, br, I), LLTO, LLTZO, li N.
Preferably, the initiator is one or more of azodiisobutyronitrile, azodiisoheptonitrile or dimethyl azodiisobutyrate, and the mass ratio of the initiator in the electrolyte material is preferably 0.01-1%.
Preferably, the solvent is one or more of tetrahydrofuran, propylene carbonate, dimethyl carbonate, methyl ethyl carbonate, diethyl carbonate, ethyl acetate, acetonitrile, isopropyl ether, acetone, butanone, isopropanol, butanol, hexane, cyclohexane, N-N dimethylacetamide, N-methyl-2-pyrrolidone, benzene, toluene, dimethyl sulfoxide, carbon tetrachloride, alkene trichloride, pyrrole.
Preferably, the solid state battery positive electrode material includes, but is not limited to, layered LiCoO 2 、LiNiO 2 And LiNi x Co 1- x O 2 Ternary LiNi 1/3 Mn 1/3 Co 1/3 O 2 And LiNi 0.85 Co 0.1 Al 0.05 O 2 Spinel LiMn 2 O 4 5V spinel LiNi 0.5 Mn 1.5 O 4 Phosphate LiMPO 4 (m=fe, mn), lithium-rich manganese-based positive electrode material Li [ Li x (MnM) 1-x ]O 2 (m=ni, co, fe), sulfur electrode.
More preferably, the negative electrode material includes, but is not limited to, metallic lithium, lithium alloy Li x M (m= In, B, al, ga, sn, si, ge, pb, as, bi, sb, cu, ag, zn), carbon-based materials (graphite, amorphous carbon, mesophase carbon microspheres), silicon-based materials (silicon carbon materials, nano silicon), tin-based materials, lithium titanate (Li) 4 Ti 5 O 12 )。
The following describes a method for producing a solid-state battery having a self-repairing function electrolyte, taking two examples as examples:
example 1
(1) Preparation of vinyl functionalized silica
4g of vinyltriethoxysilane was added to 32g of deionized water and stirred continuously for 48 hours until the triethoxymethylsilane droplets completely disappeared, then 4ml of 25% strength aqueous ammonia was added dropwise to the above solution and stirred continuously for 24 hours until the sol-gel reaction was completed. And (3) centrifuging by using a high-speed centrifuge to obtain white powdery particles, then cleaning for multiple times by using ethanol, removing residual precursors and impurities, and finally drying the obtained white powder in a vacuum oven at 50 ℃ to obtain vinyl functionalized silica for later use.
(2) Preparation of hydrogen bond type self-repairing composite electrolyte and solid-state battery
2g of 6-methylisocytosine are added to 50ml of DMSO and stirred for 10 minutes at 150 ℃. The solution was cooled to room temperature, 2.64g of methyl 2-isocyanatomethacrylate was added to the above solution, and the reaction was stirred. Ice bath, white solid precipitated, and the precipitate was collected and dried in vacuo at 30℃for 4h to give ureido compound UPyMA.
3g of poly (ethylene glycol) methyl ether methacrylate, 1g of UPyMA, 4mg of AIBN, 0.4g of LAGP, 0.01g of vinyl functionalized silica and 0.5g of LiTFSI are dissolved in 10ml of DMF, and the mixture is stirred and mixed uniformly by ultrasound and magnetic force, and cast into a film, and then reacted for 24 hours at 70 ℃, and the solvent is dried, so that the self-repairing composite electrolyte is obtained. The lithium iron phosphate and the lithium metal are respectively used as an anode and a cathode to prepare a solid-state battery, the cycle performance of the battery is tested, the voltage range is 2V-4.2V, the current density is 30mA/g, and the test temperature is 25 ℃.
Example 2
(1) Preparation of vinyl functionalized silica
3g of vinyltriethoxysilane was added to 25g of deionized water and stirred continuously for 48 hours until the triethoxymethylsilane droplets completely disappeared, then 5ml of 25% strength aqueous ammonia was added dropwise to the above solution and stirred continuously for 24 hours until the sol-gel reaction was completed. And (3) centrifuging by using a high-speed centrifuge to obtain white powdery particles, then cleaning for multiple times by using ethanol, removing residual precursors and impurities, and finally drying the obtained white powder in a vacuum oven at 50 ℃ to obtain vinyl functionalized silica for later use.
(2) Preparation of hydrogen bond type self-repairing composite electrolyte and solid-state battery
0.8g of vinyl functionalized silica, 8g of acrylic acid, 1g of LLTZO, 1g of LiFSI and 0.01g of AIBN are magnetically stirred at normal temperature, uniformly mixed, cast into a film, and then reacted at 60 ℃ for 24 hours to obtain the hydrogen bond self-repairing composite electrolyte. The NCA and the metallic lithium are respectively used as an anode and a cathode to prepare a solid-state battery, the cycle performance of the battery is tested, the voltage range is 2V-4.2V, the current density is 30mA/g, and the test temperature is 25 ℃.
FIG. 1 is an optical image of the self-healing process of the self-healing polymer in example 1 of the present invention, wherein the self-healing polymer prepared can achieve self-healing within 1 hour;
fig. 2 is a graph showing the cycle performance of the solid-state battery according to example 1 of the present invention, and the result shows that the solid-state battery has good electrochemical performance;
fig. 3 is a scanning electron micrograph of the self-repairing polymer of example 2 of the present invention, which shows that the inorganic particles are uniformly dispersed in the amorphous polymer matrix to form a three-dimensional conductive network.
The self-repairing functional electrolyte containing the self-repairing groups based on multiple hydrogen bonds, the ion conducting groups, the crosslinking active sites and the inorganic conductive ceramic is prepared and obtained through an in-situ crosslinking polymerization method, the self-repairing functional electrolyte with good self-repairing function, ion conducting performance and machinability is obtained, a solid-state battery system capable of being stably output is obtained on the basis, and the service life of the battery is prolonged.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent variation and modification made to the above embodiment according to the technical substance of the present invention falls within the scope of the technical solution of the present invention.

Claims (6)

1. A method for preparing a solid-state battery with self-repairing electrolyte, which is characterized in that: comprises the following steps of the method,
dissolving vinyl triethoxysilane in deionized water, completely hydrolyzing by ultrasonic treatment, dropwise adding ammonia water to form gel, separating, purifying and drying to obtain a solid product vinyl functionalized silica which can be used as a crosslinking active site;
preparation of vinyl functionalized silica:
adding 3-4 parts by mass of triethoxymethylsilane into 25-32 parts by mass of deionized water, and continuously stirring for 48 hours until small droplets of the triethoxymethylsilane completely disappear; then dropwise adding 0.36-0.46 part by mass of ammonia water with the concentration of 25%, and continuously stirring for 24 hours until the sol-gel reaction is complete; centrifuging by using a high-speed centrifuge to obtain white powdery particles, cleaning the white powdery particles with ethanol for several times, removing residual precursors and impurities, and finally drying the obtained white powder in a vacuum oven at 50 ℃ to obtain vinyl functionalized silica for later use;
the particle size of the prepared vinyl functionalized silica particles is 100 nm-5 mu m, and the mass of the vinyl functionalized silica is 0.01-10% of the mass of the self-repairing functionalized group compound;
step two, mixing and dissolving vinyl functionalized silicon dioxide, a self-repairing functionalized group compound, an ion conductive group compound, an initiator, inorganic conductive ceramic and lithium salt in a solvent according to a proportion, and fully dispersing and mixing to obtain a precursor solution; casting the precursor solution into a film, reacting at a certain temperature, and drying to obtain the self-repairing functional composite electrolyte;
the preparation of the precursor solution comprises the following steps: carrying out ultrasonic and magnetic stirring at normal temperature on 0.8-1 part by mass of vinyl functionalized silicon dioxide, 8 parts by mass of self-repairing functionalized groups, 0-3 parts by mass of ionic conductive group compounds, 0.004-0.01 part by mass of initiator, 0-0.4 part by mass of inorganic conductive ceramic and 1 part by mass of lithium salt until the materials are uniformly mixed, coating, and then reacting for 24 hours at room temperature to 100 ℃; obtaining a hydrogen bond self-repairing composite electrolyte;
step three, matching the self-repairing function composite electrolyte with an anode and a cathode to prepare a solid-state battery; the positive electrode material of the solid-state battery is NCA or lithium iron phosphate, and the negative electrode material is metallic lithium.
2. The method for producing a solid-state battery with a self-repairing function electrolyte according to claim 1, characterized in that: the self-repairing functional group compound is a compound containing multiple hydrogen bond groups and comprises one or a combination of more than one of urea-based compound and acrylic acid monomer.
3. The method for producing a solid-state battery with a self-repairing function electrolyte according to claim 1, characterized in that: the ionic conductive group compound comprises one or more of polyethylene glycol, poly (ethylene glycol) methyl ether methacrylate, polyethylene oxide, polypropylene oxide, polyethylene glycol succinate, polypropylene carbonate, polyethylene carbonate, polytrimethylene carbonate, poly epsilon-caprolactone and copolymers obtained by ring opening copolymerization of monomers of the poly epsilon-caprolactone and TMC monomers.
4. The method for producing a solid-state battery with a self-repairing function electrolyte according to claim 1, characterized in that: the lithium salt comprises one or more of lithium hexafluorophosphate, lithium tetrafluoroborate, lithium perchlorate, lithium difluorooxalato borate, lithium bis (trifluoromethylsulfonyl) imide and lithium bis (fluorosulfonyl) imide; the molar ratio of the ion conductive group compound to the lithium salt is 50:1-1:10.
5. The method for producing a solid-state battery with a self-repairing function electrolyte according to claim 1, characterized in that: the initiator is one or more of azodiisobutyronitrile, azodiisoheptonitrile or dimethyl azodiisobutyrate, and the mass ratio of the initiator in the electrolyte material is 0.01% -1%.
6. The method for producing a solid-state battery with a self-repairing function electrolyte according to claim 1, characterized in that: the solvent is one or more of tetrahydrofuran, propylene carbonate, dimethyl carbonate, methyl ethyl carbonate, diethyl carbonate, ethyl acetate, acetonitrile, isopropyl ether, acetone, butanone, isopropanol, butanol, hexane, cyclohexane, N-N dimethylacetamide, N-methyl-2-pyrrolidone, benzene, toluene, dimethyl sulfoxide, carbon tetrachloride, trichloroethylene and pyrrole.
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