CN112421097A - All-solid-state lithium battery and preparation method thereof - Google Patents
All-solid-state lithium battery and preparation method thereof Download PDFInfo
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- H01M10/00—Secondary cells; Manufacture thereof
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- H—ELECTRICITY
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- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
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- H01M10/00—Secondary cells; Manufacture thereof
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- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
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Abstract
The invention relates to an all-solid-state lithium battery and a preparation method thereof, belonging to the technical field of lithium batteries and comprising an anode, a solid electrolyte and a cathode, wherein a solid electrolyte layer is arranged between the anode and the cathode, an anode interface modification layer is arranged between the anode and the solid electrolyte layer, and a cathode interface modification layer is arranged between the cathode and the solid electrolyte layer; according to the invention, the interface between the solid electrolyte layer and the lithium cathode is modified by the polymer compatible with lithium, the interface between the solid electrolyte layer and the high-voltage anode is modified by the high-voltage-resistant polymer, and the interface wettability and the interface performance can be improved by the asymmetric interface modification layers respectively modifying the anode and cathode interfaces, so that the interface impedance is greatly reduced.
Description
Technical Field
The invention relates to the technical field of lithium batteries, in particular to an all-solid-state lithium battery and a preparation method thereof.
Background
With the wide application of lithium ion batteries in production and life, the safety performance of lithium ion batteries is receiving more and more attention. The liquid electrolyte used in the prior art has a series of advantages of high ionic conductivity, convenient processing and treatment, easy control of electrode/electrolyte interface and the like, so that the liquid electrolyte is widely applied to the field of lithium batteries. However, due to the use of a large amount of flammable organic electrolytes such as ethers and esters, the lithium battery has a serious safety problem, and in addition, the application of the lithium battery in a high-voltage battery system is difficult due to the limited electrochemical window. Therefore, the solid electrolyte with better safety performance is used for replacing organic electrolyte to assemble the solid battery, and the safety performance of the lithium battery and the energy density of the lithium battery are expected to be improved.
In the development process of solid-state lithium batteries, many problems of solid-state batteries are needed to be solved, wherein the most important problem is that the solid-state batteries realize energy density/power density and long-term cycling stability, and the solid-state electrode/electrolyte interface problem is one of the most difficult problems to solve at present. The high interfacial resistance limits the improvement of the performance of the all-solid battery, so the formation of the metallic lithium/solid electrolyte interfacial phase and the properties thereof play a decisive role in the change of the interfacial resistance. When the performance of the solid-state battery is improved, the mechanism and the physicochemical characteristics of the formation of an interface phase still need to be studied systematically and deeply, and a low-impedance stable interface layer is formed through interface regulation, so that the capacity and the service life of the solid-state battery are improved.
Disclosure of Invention
The present invention is directed to an all-solid-state lithium battery and a method for manufacturing the same, which solve the problems of the background art mentioned above.
In order to achieve the purpose, the invention provides the following technical scheme:
an all-solid-state lithium battery comprises an anode, a solid electrolyte and a cathode, wherein the solid electrolyte layer is arranged between the anode and the cathode, an anode interface modification layer is arranged between the anode and the solid electrolyte layer, a cathode interface modification layer is arranged between the cathode and the solid electrolyte layer, and the thicknesses of the anode interface modification layer and the cathode interface modification layer are both 1-50 mu m.
As a further technical scheme of the invention: the positive electrode 1 comprises LiCoO2、LiNiO2、LiMn2O4、LiFePO4、Li3V2(PO4)3、Li3V3(PO4)3、LiVPO4F、Li2CuO2、Li5FeO4、TiS2、V2S3、FeS、FeS2、TiO2、Cr3O8、V2O5、MnO2、LiCoxNi1-x-yAlyO2、LiFepMnqX1-p-qO4、Li1+sL1-p-qMpNqO2、LiYSrAt least one of;
wherein x is more than or equal to 0 and less than or equal to 1, y is more than or equal to 0 and less than or equal to 1, x + y is more than or equal to 0 and less than or equal to 1, p is more than or equal to 0 and less than or equal to 1, q is more than or equal to 0 and less than or equal to 1, p + q is more than or equal to 0 and less than or equal to 1, s is more than or equal to-0.;
x comprises at least one of Al, Mg, Ga, Cr, Co, Ni, Cu, Zn and Mo;
l, M, N each independently comprises at least one of Li, Co, Mn, Ni, Fe, Al, Mg, Ga, Ti, Cr, Cu, Zn, Mo, F, I, S, B;
y comprises at least one of Ti, Fe, Ni, Cu and Mo.
As a further technical scheme of the invention: the positive electrode interface modification layer comprises the following raw materials in percentage by weight: polymer A30-80%, lithium salt A15-50%, additive A0.1-50%;
the polymer A comprises at least one of polyacrylonitrile and polymethyl acrylate;
the lithium salt A comprises LiPF6、LiClO4、LiAsF6、LiBF4、LiCF3SO3、LiN(CF3SO2)2、LiB(C2O4)2、LiBF2(CO2)2At least one of;
the additive A comprises any one of boron additives, organic phosphorus additives, carbonate additives, sulfur additives and ionic liquid additives.
As a further technical scheme of the invention: the solid electrolyte layer includes at least one of a perovskite type, a sodium ion conductor type, a garnet type, and a sulfide type.
As a further technical scheme of the invention: the cathode interface modification layer comprises the following raw materials in percentage by weight: polymer B30-80%, lithium salt B15-50%, additive B0.1-50%;
the polymer B comprises at least one of polyethylene oxide, polymethyl methacrylate, polyvinylidene fluoride and poly (vinylidene fluoride-co-hexafluoropropylene);
the lithium salt B comprises LiPF6、LiClO4、LiAsF6、LiBF4、LiCF3SO3、LiN(CF3SO2)2、LiB(C2O4)2、LiBF2(CO2)2At least one of;
the additive B comprises at least one of lithium nitrate, fluoroethylene carbonate and copper fluoride.
As a further technical scheme of the invention: the negative electrode is any one of lithium metal or lithium alloy.
A preparation method of an all-solid-state lithium battery comprises the following steps:
adding a polymer A, a lithium salt A and an additive A into an organic solvent, uniformly stirring at 20-120 ℃, uniformly coating the mixture to a thickness of 1-50 mu m, and drying and cutting at 40-120 ℃ to prepare a positive interface modification layer;
secondly, adding the polymer B, the lithium salt B and the additive B into an organic solvent, uniformly stirring, uniformly coating the mixture to a thickness of 1-50 mu m, and drying and cutting the mixture at 40-120 ℃ to prepare a negative electrode interface modification layer;
and thirdly, placing the anode interface modification layer between the anode and the solid electrolyte layer, and then placing the cathode interface modification layer between the cathode and the solid electrolyte layer to prepare the all-solid-state lithium battery.
As a further technical scheme of the invention: the organic solvent comprises any one of acetonitrile and N-methyl-pyrrolidone.
Compared with the prior art, the invention has the beneficial effects that: the interface between the solid electrolyte layer and the lithium cathode is modified by the polymer compatible with lithium, the interface between the solid electrolyte layer and the high-voltage anode is modified by the high-voltage-resistant polymer, and the interface wettability and the interface performance can be improved by the asymmetric interface modification layers respectively modifying the anode and cathode interfaces, so that the interface impedance is greatly reduced.
Drawings
Fig. 1 is a schematic structural view of an all solid-state lithium battery.
In the figure: 1-anode, 2-anode interface modification layer, 3-solid electrolyte layer, 4-cathode interface modification layer and 5-cathode.
Detailed Description
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1
The all-solid-state lithium battery shown in fig. 1 comprises an anode 1, a solid electrolyte 3 and a cathode 5, wherein the solid electrolyte layer 3 is arranged between the anode 1 and the cathode 5, an anode interface modification layer 2 is arranged between the anode 1 and the solid electrolyte layer 3, a cathode interface modification layer 4 is arranged between the cathode 5 and the solid electrolyte layer 3, and the thicknesses of the cathode interface modification layer 4 and the anode interface modification layer 2 are both 1 μm; wherein the content of the first and second substances,
the positive electrode 1 is LiCoO2；
The positive electrode interface modification layer 2 is prepared from the following raw materials in percentage by weight: 30% of polyacrylonitrile and LiPF650% and 20% of boron additives;
the solid electrolyte layer 3 is of perovskite type;
the negative electrode interface modification layer 4 is prepared from the following raw materials in percentage by weight: 30% of polyethylene oxide, 50% of polymethyl methacrylate and 20% of lithium nitrate;
the negative electrode 5 is lithium metal;
a preparation method of an all-solid-state lithium battery comprises the following steps:
firstly, polyacrylonitrile and LiPF6Adding a boron additive into acetonitrile, uniformly stirring at 20-120 ℃, uniformly coating the mixture to a thickness of 1 mu m, and drying and cutting at 40 ℃ to prepare a positive interface modification layer 2;
secondly, adding polyoxyethylene, polymethyl methacrylate and lithium nitrate into methyl-pyrrolidone, uniformly stirring, uniformly coating the mixture to a thickness of 1 mu m, and drying and cutting the mixture at 40 ℃ to prepare a negative electrode interface modification layer 4;
and thirdly, placing the anode interface modification layer 2 between the anode 1 and the solid electrolyte layer 3, and then placing the cathode interface modification layer 4 between the cathode 5 and the solid electrolyte layer 3 to manufacture the all-solid-state lithium battery.
Example 2
An all-solid-state lithium battery comprises an anode 1, a solid electrolyte 3 and a cathode 5, wherein the solid electrolyte layer 3 is arranged between the anode 1 and the cathode 5, an anode interface modification layer 2 is arranged between the anode 1 and the solid electrolyte layer 3, a cathode interface modification layer 4 is arranged between the cathode 5 and the solid electrolyte layer 3, and the thicknesses of the cathode interface modification layer 4 and the anode interface modification layer 2 are both 10 mu m; wherein the content of the first and second substances,
the positive electrode 1 is LiCoO2、LiMn2O4、LiVPO4F and TiS2A mixture of (a);
the positive electrode interface modification layer 2 is prepared from the following raw materials in percentage by weight: polymer A35%, lithium salt A15% and additive A50%; the polymer A is polymethyl acrylate, and the lithium salt A is LiClO4、LiAsF6And LiBF4The additive A is a mixture of an organic phosphorus additive and a carbonate additive;
the solid electrolyte layer 3 is a mixture of a sodium ion conductor type and a garnet type;
the negative electrode interface modification layer 4 is prepared from the following raw materials in percentage by weight: polymer B35%, lithium salt B15%, additive B50%; the polymer B is a mixture of polymethyl methacrylate and polyvinylidene fluoride, and the lithium salt B is LiCF3SO3And LiN (CF)3SO2)2The additive B is a mixture of fluoroethylene carbonate and copper fluoride;
the negative electrode 5 is a lithium alloy;
a preparation method of an all-solid-state lithium battery comprises the following steps:
firstly, polyacrylonitrile and LiPF6Adding a boron additive into acetonitrile, uniformly stirring at 40 ℃, uniformly coating the mixture to a thickness of 10 mu m, and drying and cutting at 60 ℃ to prepare a positive interface modification layer 2;
secondly, adding polyoxyethylene, polymethyl methacrylate and lithium nitrate into methyl-pyrrolidone, uniformly stirring, uniformly coating the mixture to a thickness of 10 mu m, and drying and cutting the mixture at 60 ℃ to prepare a negative electrode interface modification layer 4;
and thirdly, placing the anode interface modification layer 2 between the anode 1 and the solid electrolyte layer 3, and then placing the cathode interface modification layer 4 between the cathode 5 and the solid electrolyte layer 3 to manufacture the all-solid-state lithium battery.
Example 3
An all-solid-state lithium battery comprises an anode 1, a solid electrolyte 3 and a cathode 5, wherein the solid electrolyte layer 3 is arranged between the anode 1 and the cathode 5, an anode interface modification layer 2 is arranged between the anode 1 and the solid electrolyte layer 3, a cathode interface modification layer 4 is arranged between the cathode 5 and the solid electrolyte layer 3, and the thicknesses of the cathode interface modification layer 4 and the anode interface modification layer 2 are both 20 micrometers; wherein the content of the first and second substances,
the positive electrode 1 is Li3V3(PO4)3、LiVPO4F、Li2CuO2、Li5FeO4、TiS2、V2S3And FeS;
the positive electrode interface modification layer 2 is prepared from the following raw materials in percentage by weight: polymer A50%, lithium salt A40% and additive A10%; the polymer A is a mixture of polyacrylonitrile and polymethyl acrylate, and the lithium salt A is LiCF3SO3、LiN(CF3SO2)2、LiB(C2O4)2And LiBF2(CO2)2Additive A is a mixture of ionic liquid additives containing sulfur additives;
the solid electrolyte layer 3 is a mixture of perovskite type, garnet type and sulfide type;
the negative electrode interface modification layer 4 is prepared from the following raw materials in percentage by weight: polymer B40%, lithium salt B40%, additive B10%; the polymer B is a mixture of polyvinylidene fluoride and poly (vinylidene fluoride-co-hexafluoropropylene), and the lithium salt B is LiClO4、LiAsF6、LiBF4、LiCF3SO3And LiB (C)2O4)2The additive B is a mixture of lithium nitrate, fluoroethylene carbonate and copper fluoride;
the negative electrode 5 is a lithium alloy;
a preparation method of an all-solid-state lithium battery comprises the following steps:
firstly, adding a polymer A, a lithium salt A and an additive A into acetonitrile, uniformly stirring at 60 ℃, then uniformly coating the mixture to a thickness of 20 mu m, and drying and cutting the mixture at 80 ℃ to prepare a positive interface modification layer 2;
secondly, adding the polymer B, the lithium salt B and the additive B into methyl-pyrrolidone, uniformly stirring, uniformly coating the mixture to a thickness of 20 mu m, and drying and cutting the mixture at 80 ℃ to prepare a negative electrode interface modification layer 4;
and thirdly, placing the anode interface modification layer 2 between the anode 1 and the solid electrolyte layer 3, and then placing the cathode interface modification layer 4 between the cathode 5 and the solid electrolyte layer 3 to manufacture the all-solid-state lithium battery.
Example 4
An all-solid-state lithium battery comprises an anode 1, a solid electrolyte 3 and a cathode 5, wherein the solid electrolyte layer 3 is arranged between the anode 1 and the cathode 5, an anode interface modification layer 2 is arranged between the anode 1 and the solid electrolyte layer 3, a cathode interface modification layer 4 is arranged between the cathode 5 and the solid electrolyte layer 3, and the thicknesses of the cathode interface modification layer 4 and the anode interface modification layer 2 are both 30 mu m; wherein the content of the first and second substances,
the positive electrode 1 is LiCoO2、LiNiO2、LiMn2O4、LiFePO4、Li3V2(PO4)3、Li3V3(PO4)3、LiVPO4F、Li2CuO2、Li5FeO4、TiS2、V2S3、FeS、FeS2、TiO2、Cr3O8、V2O5、MnO2、LiCoxNi1-x-yAlyO2、LiFepMnqX1-p-qO4、Li1+sL1-p-qMpNqO2And lysrA mixture of (a);
wherein x is more than or equal to 0 and less than or equal to 1, y is more than or equal to 0 and less than or equal to 1, x + y is more than or equal to 0 and less than or equal to 1, p is more than or equal to 0 and less than or equal to 1, q is more than or equal to 0 and less than or equal to 1, p + q is more than or equal to 0 and less than or equal to 1, s is more than or equal to-0.;
x comprises at least one of Al, Mg, Ga, Cr, Co, Ni, Cu, Zn and Mo;
l, M, N each independently comprises at least one of Li, Co, Mn, Ni, Fe, Al, Mg, Ga, Ti, Cr, Cu, Zn, Mo, F, I, S, B;
y comprises at least one of Ti, Fe, Ni, Cu and Mo;
the positive electrode interface modification layer 2 is prepared from the following raw materials in percentage by weight: polymer A60%, lithium salt A35% and additive A5%; the polymer A is a mixture of acrylonitrile and polymethyl acrylate, and the lithium salt A is LiPF6、LiClO4、LiAsF6、LiBF4、LiCF3SO3、LiN(CF3SO2)2、LiB(C2O4)2And LiBF2(CO2)2The additive A is a mixture of boron additives, organic phosphorus additives, carbonate additives, sulfur-containing additives and ionic liquid additives;
the solid electrolyte layer 3 is a perovskite type, sodium ion conductor type, garnet type and sulfide type mixture;
the negative electrode interface modification layer 4 is prepared from the following raw materials in percentage by weight: polymer B60%, lithium salt B35%, additive B5%; the polymer B is a mixture of polyethylene oxide, polymethyl methacrylate, polyvinylidene fluoride and poly (vinylidene fluoride-co-hexafluoropropylene), and the lithium salt B is LiPF6, LiClO4, LiAsF6, LiBF4, LiCF3SO3, LiN (CF)3SO2)2、LiB(C2O4)2And LiBF2(CO2)2The additive B is a mixture of lithium nitrate, fluoroethylene carbonate and copper fluoride;
the negative electrode 5 is lithium metal;
a preparation method of an all-solid-state lithium battery comprises the following steps:
firstly, adding a polymer A, a lithium salt A and an additive A into methyl-pyrrolidone, uniformly stirring at 80 ℃, then uniformly coating the mixture to a thickness of 30 mu m, and drying and cutting the mixture at 90 ℃ to prepare a positive interface modification layer 2;
secondly, adding the polymer B, the lithium salt B and the additive B into methyl-pyrrolidone, uniformly stirring, uniformly coating the mixture to a thickness of 30 mu m, and drying and cutting the mixture at 90 ℃ to prepare a negative electrode interface modification layer 4;
and thirdly, placing the anode interface modification layer 2 between the anode 1 and the solid electrolyte layer 3, and then placing the cathode interface modification layer 4 between the cathode 5 and the solid electrolyte layer 3 to manufacture the all-solid-state lithium battery.
Example 5
An all-solid-state lithium battery comprises an anode 1, a solid electrolyte 3 and a cathode 5, wherein the solid electrolyte layer 3 is arranged between the anode 1 and the cathode 5, an anode interface modification layer 2 is arranged between the anode 1 and the solid electrolyte layer 3, a cathode interface modification layer 4 is arranged between the cathode 5 and the solid electrolyte layer 3, and the thicknesses of the cathode interface modification layer 4 and the anode interface modification layer 2 are both 40 mu m; wherein the content of the first and second substances,
the positive electrode 1 is Li3V3(PO4)3、LiVPO4F、Li2CuO2、Li5FeO4、TiS2、V2S3、FeS、FeS2、TiO2、Cr3O8、V2O5And MnO2A mixture of (a);
the positive electrode interface modification layer 2 is prepared from the following raw materials in percentage by weight: polymer A70%, lithium salt A29.9%, additive A0.1%; the polymer A is a mixture of acrylonitrile and polymethyl acrylate, and the lithium salt A is LiPF6、LiClO4、LiAsF6、LiBF4、LiCF3SO3And LiN (CF)3SO2)2The additive A is a mixture of an organic phosphorus additive, a carbonate additive and a sulfur-containing additive;
the solid electrolyte layer 3 is a mixture of perovskite type, sodium ion conductor type and garnet type;
the negative electrode interface modification layer 4 is prepared from the following raw materials in percentage by weight: 70% of polymer B, 29.9% of lithium salt B and 0.1% of additive B; the polymer B is polyoxyethyleneA mixture of alkene, polyvinylidene fluoride and poly (vinylidene fluoride-co-hexafluoropropylene), the lithium salt B being LiAsF6、LiCF3SO3And LiN (CF)3SO2)2The additive B is a mixture of lithium nitrate and copper fluoride;
the negative electrode 5 is lithium metal;
a preparation method of an all-solid-state lithium battery comprises the following steps:
firstly, adding a polymer A, a lithium salt A and an additive A into acetonitrile, uniformly stirring at 100 ℃, then uniformly coating the mixture to a thickness of 40 mu m, and drying and cutting the mixture at 100 ℃ to prepare a positive interface modification layer 2;
secondly, adding the polymer B, the lithium salt B and the additive B into acetonitrile, uniformly stirring, uniformly coating the mixture to a thickness of 40 mu m, and drying and cutting the mixture at 100 ℃ to prepare a negative electrode interface modification layer 4;
and thirdly, placing the anode interface modification layer 2 between the anode 1 and the solid electrolyte layer 3, and then placing the cathode interface modification layer 4 between the cathode 5 and the solid electrolyte layer 3 to manufacture the all-solid-state lithium battery.
Example 6
An all-solid-state lithium battery comprises an anode 1, a solid electrolyte 3 and a cathode 5, wherein the solid electrolyte layer 3 is arranged between the anode 1 and the cathode 5, an anode interface modification layer 2 is arranged between the anode 1 and the solid electrolyte layer 3, a cathode interface modification layer 4 is arranged between the cathode 5 and the solid electrolyte layer 3, and the thicknesses of the cathode interface modification layer 4 and the anode interface modification layer 2 are both 50 micrometers; wherein the content of the first and second substances,
the positive electrode 1 is TiS2；
The positive electrode interface modification layer 2 is prepared from the following raw materials in percentage by weight: polymer A80%, lithium salt A15% and additive A5%; the polymer A is polymethyl acrylate, and the lithium salt A is LiBF4The additive A is a sulfur-containing additive;
the solid electrolyte layer 3 is of garnet type;
the negative electrode interface modification layer 4 is prepared from the following raw materials in percentage by weight: polymer B80%, lithium salt B15%, additive B5%; polymer and method of making sameB is polyvinylidene fluoride, lithium salt B is LiN (CF)3SO2)2The additive B is copper fluoride;
the negative electrode 5 is a lithium alloy;
a preparation method of an all-solid-state lithium battery comprises the following steps:
firstly, adding a polymer A, a lithium salt A and an additive A into acetonitrile, uniformly stirring at 120 ℃, then uniformly coating the mixture to a thickness of 50 mu m, and drying and cutting at 120 ℃ to prepare a positive interface modification layer 2;
secondly, adding the polymer B, the lithium salt B and the additive B into methyl-pyrrolidone, uniformly stirring, uniformly coating the mixture to a thickness of 10 mu m, and drying and cutting the mixture at 120 ℃ to prepare a negative electrode interface modification layer 4;
and thirdly, placing the anode interface modification layer 2 between the anode 1 and the solid electrolyte layer 3, and then placing the cathode interface modification layer 4 between the cathode 5 and the solid electrolyte layer 3 to manufacture the all-solid-state lithium battery.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
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 (8)
1. An all-solid-state lithium battery comprising a positive electrode (1), a solid-state electrolyte (3), and a negative electrode (5), characterized in that: the solid electrolyte layer (3) is arranged between the anode (1) and the cathode (5), the anode interface modification layer (2) is arranged between the anode (1) and the solid electrolyte layer (3), the cathode interface modification layer (4) is arranged between the cathode (5) and the solid electrolyte layer (3), and the thicknesses of the cathode interface modification layer (4) and the anode interface modification layer (2) are 1-50 mu m.
2. The all-solid-state lithium battery according to claim 1, characterized in that: the positive electrode 1 comprises LiCoO2、LiNiO2、LiMn2O4、LiFePO4、Li3V2(PO4)3、Li3V3(PO4)3、LiVPO4F、Li2CuO2、Li5FeO4、TiS2、V2S3、FeS、FeS2、TiO2、Cr3O8、V2O5、MnO2、LiCoxNi1-x-yAlyO2、LiFepMnqX1-p-qO4、Li1+sL1-p-qMpNqO2、LiYSrAt least one of;
wherein x is more than or equal to 0 and less than or equal to 1, y is more than or equal to 0 and less than or equal to 1, x + y is more than or equal to 0 and less than or equal to 1, p is more than or equal to 0 and less than or equal to 1, q is more than or equal to 0 and less than or equal to 1, p + q is more than or equal to 0 and less than or equal to 1, s is more than or equal to-0.;
x comprises at least one of Al, Mg, Ga, Cr, Co, Ni, Cu, Zn and Mo;
l, M, N each independently comprises at least one of Li, Co, Mn, Ni, Fe, Al, Mg, Ga, Ti, Cr, Cu, Zn, Mo, F, I, S, B;
y comprises at least one of Ti, Fe, Ni, Cu and Mo.
3. The all-solid-state lithium battery according to claim 1, wherein the positive electrode interface modification layer (2) comprises the following raw materials in percentage by weight: polymer A30-80%, lithium salt A15-50%, additive A0.1-50%;
the polymer A comprises at least one of polyacrylonitrile and polymethyl acrylate;
the lithium salt A comprises LiPF6、LiClO4、LiAsF6、LiBF4、LiCF3SO3、LiN(CF3SO2)2、LiB(C2O4)2、LiBF2(CO2)2At least one of;
the additive A comprises any one of boron additives, organic phosphorus additives, carbonate additives, sulfur additives and ionic liquid additives.
4. The all-solid-state lithium battery according to claim 1, characterized in that: the solid electrolyte layer (3) includes at least one of a perovskite type, a sodium ion conductor type, a garnet type, and a sulfide type.
5. The all-solid-state lithium battery according to claim 1, characterized in that: the negative electrode interface modification layer (4) comprises the following raw materials in percentage by weight: polymer B30-80%, lithium salt B15-50%, additive B0.1-50%;
the polymer B comprises at least one of polyethylene oxide, polymethyl methacrylate, polyvinylidene fluoride and poly (vinylidene fluoride-co-hexafluoropropylene);
the lithium salt B comprises LiPF6、LiClO4、LiAsF6、LiBF4、LiCF3SO3、LiN(CF3SO2)2、LiB(C2O4)2、LiBF2(CO2)2At least one of;
the additive B comprises at least one of lithium nitrate, fluoroethylene carbonate and copper fluoride.
6. The all-solid-state lithium battery according to claim 1, characterized in that: the negative electrode (5) is any one of lithium metal or lithium alloy.
7. A method for producing an all solid-state lithium battery according to any one of claims 1 to 6, comprising the steps of:
firstly, adding a polymer A, a lithium salt A and an additive A into an organic solvent, uniformly stirring at 20-120 ℃, then uniformly coating the mixture to a thickness of 1-50 mu m, and drying and cutting at 40-120 ℃ to prepare a positive interface modification layer (2);
secondly, adding the polymer B, the lithium salt B and the additive B into an organic solvent, uniformly stirring, uniformly coating the mixture to a thickness of 1-50 mu m, and drying and cutting the mixture at 40-120 ℃ to prepare a negative electrode interface modification layer (4);
and thirdly, placing the anode interface modification layer (2) between the anode (1) and the solid electrolyte layer (3), and then placing the cathode interface modification layer (4) between the cathode (5) and the solid electrolyte layer (3) to manufacture the all-solid-state lithium battery.
8. The all solid-state lithium battery according to claim 7, characterized in that: the organic solvent comprises any one of acetonitrile and N-methyl-pyrrolidone.
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