Electrode plate and battery

Abstract

The invention discloses an electrode plate and a battery. The electrode plate comprises a first composite material layer, a current collector and a second composite material layer, the first composite material layer and the second composite material layer respectively cover the upper surface and the lower surface of the current collector; the first composite material layer and the second composite material layer comprise electrode particles, a liquid electrolyte layer and a solid electrolyte; the liquid electrolyte layer is attached to the inner wall of a pore channel formed among the electrode particles, and the solid electrolyte in the pore channel is isolated from the electrode particles. The microcosmic distribution of the liquid electrolyte and the solid electrolyte in the electrode plate of the semi-solid battery is subjected to ordered design, and the electrode particles and the solid electrolyte are separated, so that the interface migration of lithium ions is performed between the electrode particles and the pure liquid electrolyte, and the lithium ions are subjected to long-range transportation between the positive electrode and the negative electrode in a pure liquid phase; the internal resistance of the semi-solid-state battery is reduced, and the rate capability and the power performance of the semi-solid-state battery are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of batteries, and more specifically, relates to an electrode sheet and a battery using the electrode sheet. Background Art

[0002] The electrolyte used in traditional lithium-ion batteries is liquid, including lithium salts and carbonate solvents. Compared with other solvents, carbonate solvents can provide the best overall electrical performance for batteries, but they are highly flammable, have low thermal stability, and are prone to safety accidents.

[0003] Semi-solid batteries can improve the thermal stability of electrolytes and reduce the flammability of electrolytes by replacing part of the liquid electrolyte with a solid electrolyte, thereby improving the safety of the battery. However, the electrode particles of traditional semi-solid batteries are in contact with both liquid and solid electrolytes; and inside the pores between the electrode particles, the liquid electrolyte and the solid electrolyte are in a disordered mixed state. Compared with liquid electrolytes, the migration rate of lithium ions in polymer solid electrolytes is significantly reduced, and the interface migration resistance at the contact point between the electrode particles and the solid electrolyte is large, both of which cause the internal resistance of the battery to increase, that is, the rate performance and power performance of the battery to decrease. Therefore, a technical solution is needed to simultaneously improve the rate performance and power performance of semi-solid batteries.

[0004] The information disclosed in the background technology section of the present invention is only intended to deepen the understanding of the general background technology of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to those skilled in the art. Summary of the invention

[0005] The purpose of the present invention is to provide an electrode sheet and a battery using the electrode sheet, so as to improve the rate performance and power performance of the semi-solid-state battery while maintaining the high safety of the semi-solid-state battery.

[0006] To achieve the above-mentioned purpose, the present invention provides an electrode sheet and a battery using the electrode sheet.

[0007] According to a first aspect of the present invention, an electrode sheet is provided, comprising:

[0008] a first composite material layer, a current collector, and a second composite material layer;

[0009] The first composite material layer and the second composite material layer are respectively covered on the upper surface and the lower surface of the current collector;

[0010] The first composite material layer and the second composite material layer include:

[0011] Electrode particles, liquid electrolyte layers, and solid electrolytes;

[0012] The liquid electrolyte layer is attached to the inner wall of the pores formed between the electrode particles, isolating the solid electrolyte in the pores from the electrode particles.

[0013] Optionally, the electrode particles include an active material, a conductive agent and a binder.

[0014] Optionally, the current collector is a metal or an alloy;

[0015] The metal includes at least one of aluminum, copper, nickel and titanium;

[0016] The alloy includes at least one of aluminum alloy, copper alloy, nickel alloy and titanium alloy.

[0017] Optionally, the solid electrolyte is a product of solidified precursor solution;

[0018] The precursor solution includes an initiator, a polymer monomer and a liquid electrolyte.

[0019] Optionally, the active material includes at least LiFePO4, LiNi x Co y Mn (1-x-y) O2, LiMn2O4, graphite and SiO x One of the following;

[0020] Among them, LiNi x Co y Mn (1-x-y) In O2, 0≤x+y≤1, SiO x Where 0≤x≤2.

[0021] Optionally, the conductive agent includes at least one of carbon black, carbon nanotubes and graphene.

[0022] Optionally, the binder includes at least one of PVDF, CMC, SBR, PAA and LiPAA.

[0023] Optionally, the liquid electrolyte comprises a lithium salt and a solvent;

[0024] The lithium salt includes at least one of LiPF6, LiBF4, LiClO4, LiBOB, LiDFOB, LiFSI and LiTFSI;

[0025] The solvent includes at least one of EC, DMC, DEC, EMC and PC.

[0026] Optionally, the polymer monomer includes at least one of PEGA, PEGMA, EGPEA, MMA, PEGMEM, TEGDA, PEGDA, TPGDA, EGDMA, PEGDMA, HDDA, TEGDMA, BDDA, BEMA, TMPTA, TMPTMA, ETPTA, PETEA, TAEP, FPCA, VC and DOL;

[0027] The initiator includes at least one of AIBN, ABVN, BPO, LPO, TAPP, TBPP and H2O.

[0028] According to a second aspect of the present invention, a battery is provided, comprising the electrode sheet as described in any one of the first aspects.

[0029] The beneficial effects of the present invention are as follows: the present invention orderly designs the microscopic distribution of liquid electrolyte and solid electrolyte in the electrode sheet of the semi-solid battery, that is, by constructing a liquid electrolyte layer on the inner wall of the pore between the electrode particles, the electrode particles are separated from the solid electrolyte, without reducing the proportion of the solid electrolyte in the semi-solid battery, that is, without increasing the content of the liquid electrolyte, thereby maintaining the high safety of the semi-solid battery; the interfacial migration of lithium ions in the electrode sheet takes place between the electrode particles and the pure liquid electrolyte, thereby reducing the interfacial migration resistance of lithium ions; the long-range transport of lithium ions between the positive and negative electrodes takes place in the pure liquid phase, which is beneficial to improving the bulk phase transmission rate of lithium ions in the electrolyte, thereby reducing the internal resistance of the semi-solid battery and improving the rate performance and power performance of the semi-solid battery.

[0030] The system of the present invention has other characteristics and advantages, which will be apparent from the drawings incorporated herein and the following detailed description, or will be described in detail in the drawings incorporated herein and the following detailed description, which together serve to explain the specific principles of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, in which like reference numerals generally represent like components.

[0032] Figure 1 A schematic diagram of an electrode sheet according to Embodiment 1 of the present invention is shown.

[0033] Description of reference numerals:

[0034] 100. Current collector, 200. Composite material layer, 300. Composite material layer, 210. Local cross section of composite material layer 200, 211. Electrode particles, 212. Electrode particles, 213. Passivation film, 214. Liquid electrolyte layer, 215. Solid electrolyte. DETAILED DESCRIPTION

[0035] The present invention will be described in more detail below with reference to the accompanying drawings. Although preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0036] An electrode sheet according to the present invention comprises:

[0037] a first composite material layer, a current collector, and a second composite material layer;

[0038] The first composite material layer and the second composite material layer cover the upper surface and the lower surface of the current collector respectively;

[0039] The first composite material layer and the second composite material layer include:

[0040] Electrode particles, liquid electrolyte layers, and solid electrolytes;

[0041] The liquid electrolyte layer adheres to the inner wall of the pores formed between the electrode particles, isolating the solid electrolyte in the pores from the electrode particles.

[0042] Specifically, the electrode sheet of the present invention includes a first composite material layer, a current collector and a second composite material layer, the first composite material layer and the second composite material layer respectively cover the upper surface and the lower surface of the current collector; the first composite material layer and the second composite material layer include electrode particles, a liquid electrolyte layer and a solid electrolyte, and a pore is formed between the electrode particles, and the liquid electrolyte layer is arranged on the inner wall of the pore, thereby isolating the solid electrolyte arranged in the pore from the electrode particles. The electrode particles in the electrode sheet of the traditional semi-solid battery are in contact with both the liquid electrolyte and the solid electrolyte, and in the pores between the electrode particles, the liquid electrolyte and the solid electrolyte are in a disordered mixed state. The present invention isolates the solid electrolyte from the electrode particles by arranging a liquid electrolyte layer on the inner wall of the pore, and orderly distributes the liquid electrolyte and the solid electrolyte, while not reducing the proportion of the solid electrolyte in the semi-solid battery, that is, not increasing the content of the liquid electrolyte, and can maintain the high safety of the semi-solid battery. The electrode particles in the electrode sheet of a traditional semi-solid-state battery are in contact with both the liquid electrolyte and the solid electrolyte, resulting in a large interfacial migration resistance of lithium ions. The present invention distributes the liquid electrolyte and the solid electrolyte in an orderly manner, so that the interfacial migration of lithium ions can be carried out between the electrode particles and the pure liquid electrolyte, and the long-range transport of lithium ions between the positive and negative electrodes can be carried out in the pure liquid phase, thereby reducing the interfacial migration resistance of lithium ions and increasing the bulk phase transmission rate of lithium ions in the electrolyte, which is beneficial to reducing the internal resistance of the semi-solid-state battery and improving the rate performance and power performance of the semi-solid-state battery.

[0043] In one example, the electrode particles include an active material, a conductive agent, and a binder.

[0044] Specifically, the electrode particles include active materials, conductive agents and binders, that is, the active materials are electrode particles, the conductive agents are also electrode particles, and the binders are also electrode particles.

[0045] In one example, the current collector is a metal or an alloy;

[0046] The metal includes at least one of aluminum, copper, nickel and titanium;

[0047] The alloy includes at least one of an aluminum alloy, a copper alloy, a nickel alloy and a titanium alloy.

[0048] Specifically, the current collector is a metal or an alloy, the metals include aluminum, copper, nickel and titanium, and the alloys include aluminum alloys, copper alloys, nickel alloys and titanium alloys; the current collector can be a single metal or alloy, or it can be composed of multiple groups of metals or alloys stacked together, for example, the current collector is composed of a layer of aluminum sheet and a layer of copper sheet stacked together, or a layer of aluminum alloy and a layer of copper alloy stacked together.

[0049] In one example, the solid electrolyte is a product of solidification of a precursor solution;

[0050] The precursor solution includes an initiator, a polymer monomer and a liquid electrolyte.

[0051] Specifically, the solid electrolyte is a product of solidified precursor liquid, the precursor liquid includes an initiator, a polymer monomer and a liquid electrolyte, and the liquid electrolyte in the precursor liquid may be the same as or different from the liquid electrolyte in the liquid electrolyte layer.

[0052] In one example, the active material includes at least LiFePO4, LiNi x Co y Mn (1-x-y) O2, LiMn2O4, graphite and SiO x One of the following;

[0053] Among them, LiNi x Co y Mn (1-x-y) In O2, 0≤x+y≤1, SiO x Where 0≤x≤2.

[0054] Specifically, the active material can be LiFePO4 (lithium iron phosphate), LiNi x Co y Mn (1-x-y) O2 (lithium nickel cobalt manganese oxide), LiMn2O4 (lithium manganese oxide), graphite and SiO x (silicon oxide), or LiFePO4, LiNi x Co y Mn (1-x-y) O2, LiMn2O4, graphite and SiO x For example, one electrode sheet contains both LiFePO4 and LiNi x Co y Mn (1-x-y) O2.

[0055] In one example, the conductive agent includes at least one of carbon black, carbon nanotubes, and graphene.

[0056] Specifically, the conductive agent is one of carbon black, carbon nanotubes and graphene, or two or more of carbon black, carbon nanotubes and graphene. For example, the conductive agent in one electrode sheet contains both carbon black and graphene.

[0057] In one example, the binder includes at least one of PVDF, CMC, SBR, PAA, and LiPAA.

[0058] Specifically, the binder is one of PVDF (polyvinylidene fluoride), CMC (sodium carboxymethyl cellulose), SBR (styrene-butadiene rubber), PAA (polyacrylic acid) and LiPAA (lithium polyacrylate), or it can be two or more of PVDF, CMC, SBR, PAA and LiPAA. For example, the binder in an electrode sheet contains both PVDF and CMC.

[0059] In one example, the liquid electrolyte includes a lithium salt and a solvent;

[0060] The lithium salt includes at least one of LiPF6, LiBF4, LiClO4, LiBOB, LiDFOB, LiFSI and LiTFSI;

[0061] The solvent includes at least one of EC, DMC, DEC, EMC and PC.

[0062] Specifically, the liquid electrolyte includes a lithium salt and a solvent, the lithium salt is one of LiPF6 (lithium hexafluorophosphate), LiBF4 (lithium tetrafluoroborate), LiClO4 (lithium perchlorate), LiBOB (lithium bis(oxalatoborate), LiDFOB (lithium difluorooxalatoborate), LiFSI (lithium bis(trifluoromethanesulfonyl)imide) and LiTFSI (lithium bis(trifluoromethanesulfonyl)imide), or two or more thereof; the solvent is one of EC (ethylene carbonate), DMC (dimethyl carbonate), DEC (diethyl carbonate), EMC (ethyl methyl carbonate) and PC (propylene carbonate), or two or more thereof, for example, in the liquid electrolyte of an electrode sheet, the lithium salts are LiClO4 and LiBOB, and the solvents are DEC, EMC and PC.

[0063] In one example, the polymer monomer includes at least one of PEGA, PEGMA, EGPEA, MMA, PEGMEM, TEGDA, PEGDA, TPGDA, EGDMA, PEGDMA, HDDA, TEGDMA, BDDA, BEMA, TMPTA, TMPTMA, ETPTA, PETEA, TAEP, FTGA, VC and DOL;

[0064] The initiator includes at least one of AIBN, ABVN, BPO, LPO, TAPP, TBPP and H2O.

[0065] Specifically, the polymer monomers are PEGA (polyethylene glycol methacrylate), PEGMA (polyethylene glycol dimethacrylate), EGPEA (poly 2-phenoxyethyl acrylate), MMA (methyl methacrylate), PEGMEM (polyethylene glycol methyl ether methacrylate), TEGDA (triethylene glycol diacrylate), PEGDA (polyethylene glycol diacrylate), TPGDA (tripropylene glycol diacrylate), EGDMA (ethylene glycol dimethacrylate), PEGDMA (polyethylene glycol dimethacrylate), HDDA (hexanediol diacrylate), TEGDMA (triethylene glycol dimethacrylate), BDDA (butylene glycol diacrylate), BEMA (bisphenol A ethoxylated dimethacrylate), TMPTA (trimethylolpropane triacrylate), T The initiator may be one of MPTMA (trimethylolpropane trimethylene ester), ETPTA (ethoxylated trimethylolpropane triacrylate), PETEA (pentaerythritol tetraacrylate), TAEP (tris(β-azidoethyl) phosphate), FPCA (fluorophosphorus-based crosslinker), VC (vinylene carbonate) and DOL (dioxolane), or two or more thereof, for example, the polymer monomers in the precursor solution are PEGMA and PEGA; the initiator may be one of AIBN (azobisisobutyronitrile), ABVN (azobisisoheptanenitrile), BPO (dibenzoyl peroxide), LPO (phosphonitrile), TAPP (diaminotrihydroxypyridine), TBPP (tri(p-tert-butylphenyl) phosphate) and H2O, or two or more thereof, for example, the initiator in the precursor solution is AIBN and ABVN.

[0066] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments, but is not intended to be limiting of the present invention. It should be noted that the embodiments and features in the embodiments of the present invention may be combined with each other without conflict.

[0067] Example 1

[0068] like Figure 1 As shown, this embodiment provides an electrode sheet, including:

[0069] The current collector 100, the composite material layer 200 and the composite material layer 300, the composite material layer 200 and the composite material layer 300 respectively cover the upper and lower surfaces of the current collector 100, the composite material layer 200 and the composite material layer 300 include electrode particles, a liquid electrolyte layer and a solid electrolyte, the liquid electrolyte layer is attached to the inner wall of the pores formed between the electrode particles, and the solid electrolyte in the pores is isolated from the electrode particles; the interface between the electrode particles and the liquid electrolyte layer generates a passivation film through a chemical reaction. The current collector 100 of this embodiment is a metal aluminum foil, the electrode particles in the composite material layer 200 and the composite material layer 300 are composed of active material LiFePO4, conductive agent carbon black, graphene and binder PVDF; the liquid electrolyte in the liquid electrolyte layer is composed of lithium salt LiPF6 and solvents EC, EMC, DEC; the solid electrolyte is the product of the solidification of the precursor liquid, the precursor liquid is composed of initiator LPO, polymer monomers MMA, PEGDA and liquid electrolyte; the liquid electrolyte is composed of lithium salt LiPF6 and solvents EC, DMC, DEC.

[0070] In the local cross section 210 of the composite material layer 200, there are channels between the electrode particles 211 and the electrode particles 212, and a liquid electrolyte layer 214 is attached to the inner wall of the channel to isolate the solid electrolyte 215 from the electrode particles 211 and the electrode particles 212. A passivation film 213 is generated at the interface between the electrode particles 211 and the electrode particles 212 and the liquid electrolyte layer 214 due to electrochemical reaction.

[0071] This embodiment has carried out an orderly design for the microscopic distribution of liquid electrolyte and solid electrolyte in the electrode sheet of the semi-solid battery, that is, by constructing a liquid electrolyte layer on the inner wall of the pores between the electrode particles, the electrode particles are separated from the solid electrolyte. The electrode particles of the traditional semi-solid battery are in contact with both the liquid electrolyte and the solid electrolyte, and inside the pores between the electrode particles, the liquid electrolyte and the solid electrolyte are in a disordered mixed state. The redesign of the microscopic distribution of liquid electrolyte and solid electrolyte in the electrode sheet in this embodiment does not reduce the proportion of solid electrolyte in the semi-solid battery, that is, it does not increase the content of liquid electrolyte, so the high safety of the semi-solid battery can be maintained. Furthermore, compared with the traditional semi-solid battery, the advantages of this embodiment are as follows:

[0072] First, compared with solid electrolytes, the interfacial migration resistance of lithium ions between liquid electrolytes and electrode particles is smaller. The electrode particles of traditional semi-solid batteries are in contact with both liquid electrolytes and solid electrolytes, resulting in a large interfacial migration resistance of lithium ions. However, the ordered distribution of solid electrolytes and liquid electrolytes in the electrode pores of this embodiment can enable the interfacial migration of lithium ions to take place between electrode particles and pure liquid electrolytes, thereby significantly reducing the interfacial migration resistance of lithium ions, which is beneficial to reducing the internal resistance of semi-solid batteries, that is, improving the rate performance and power performance of semi-solid batteries.

[0073] Second, compared with solid electrolytes, the migration rate of lithium ions in liquid electrolytes is faster. Therefore, in the electrode pores of traditional semi-solid batteries, the long-range transport of lithium ions between the positive and negative electrodes is hindered by the influence of numerous solid electrolyte particles in the liquid electrolyte. However, the ordered distribution of solid electrolytes and liquid electrolytes in the electrode pores of this embodiment can enable the long-range transport of lithium ions between the positive and negative electrodes to be carried out in a pure liquid phase, which is conducive to improving the bulk phase transmission rate of lithium ions in the electrolyte, thereby reducing the internal resistance of the semi-solid battery and improving the rate performance and power performance of the semi-solid battery.

[0074] Example 2

[0075] like Figure 1 As shown, this embodiment provides an electrode sheet, including:

[0076] The current collector 100, the composite material layer 200 and the composite material layer 300, the composite material layer 200 and the composite material layer 300 respectively cover the upper and lower surfaces of the current collector 100, the composite material layer 200 and the composite material layer 300 include electrode particles, a liquid electrolyte layer and a solid electrolyte, the liquid electrolyte layer is attached to the inner wall of the pores formed between the electrode particles, and the solid electrolyte in the pores is isolated from the electrode particles; a passivation film is generated at the interface between the electrode particles and the liquid electrolyte layer through a chemical reaction. The current collector 100 of this embodiment is an aluminum alloy foil, and the electrode particles in the composite material layer 200 and the composite material layer 300 are composed of an active material LiNi 0.6 Co 0.2 Mn 0.2 O2, conductive agent carbon black, carbon nanotubes and binder PVDF; the liquid electrolyte in the liquid electrolyte layer is composed of lithium salt LiTFSI and solvents EC, DEC, EMC; the solid electrolyte is the product of the solidified precursor liquid, and the precursor liquid is composed of initiator TAPP, polymer monomer PEGDMA and liquid electrolyte; the liquid electrolyte is composed of lithium salt LiTFSI and solvents EC, DEC, EMC.

[0077] Example 3

[0078] like Figure 1As shown, this embodiment provides an electrode sheet, including:

[0079] The current collector 100, the composite material layer 200 and the composite material layer 300, the composite material layer 200 and the composite material layer 300 respectively cover the upper and lower surfaces of the current collector 100, the composite material layer 200 and the composite material layer 300 include electrode particles, a liquid electrolyte layer and a solid electrolyte, the liquid electrolyte layer is attached to the inner wall of the pores formed between the electrode particles, and the solid electrolyte in the pores is isolated from the electrode particles; the interface between the electrode particles and the liquid electrolyte layer generates a passivation film through a chemical reaction. The current collector 100 of this embodiment is a metal copper foil, the electrode particles in the composite material layer 200 and the composite material layer 300 are composed of active material graphite, conductive agent carbon black and binder PVDF; the liquid electrolyte in the liquid electrolyte layer is composed of lithium salt LiPF6 and solvents EC, PC, DEC; the solid electrolyte is the product of the solidification of the precursor liquid, the precursor liquid is composed of initiator TBPP, polymer monomer PEGDA and liquid electrolyte, and the liquid electrolyte in the precursor liquid is composed of lithium salt LiPF6 and solvents EC, DEC, PC.

[0080] Example 4

[0081] like Figure 1 As shown, this embodiment provides an electrode sheet, including:

[0082] The current collector 100, the composite material layer 200 and the composite material layer 300, the composite material layer 200 and the composite material layer 300 respectively cover the upper and lower surfaces of the current collector 100, the composite material layer 200 and the composite material layer 300 include electrode particles, a liquid electrolyte layer and a solid electrolyte, the liquid electrolyte layer is attached to the inner wall of the pores formed between the electrode particles, and the solid electrolyte in the pores is isolated from the electrode particles; the interface between the electrode particles and the liquid electrolyte layer generates a passivation film through a chemical reaction. The current collector 100 of this embodiment is a nickel alloy foil, and the electrode particles in the composite material layer 200 and the composite material layer 300 are composed of an active material SiO x (0≤x≤2), conductive agent carbon black, carbon nanotubes and binder PAA; the liquid electrolyte in the liquid electrolyte layer is composed of lithium salt LiDFOB and solvents EC and DMC; the solid electrolyte is the product of the solidified precursor liquid, the precursor liquid is composed of initiator AIBN, polymer monomer VC and liquid electrolyte, and the liquid electrolyte in the precursor liquid is composed of lithium salt LiDFOB and solvents EC and DMC.

[0083] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. An electrode sheet, characterized in that: include: a first composite material layer, a current collector, and a second composite material layer; The first composite material layer and the second composite material layer are respectively covered on the upper surface and the lower surface of the current collector; The first composite material layer and the second composite material layer include: Electrode particles, liquid electrolyte layers, and solid electrolytes; The liquid electrolyte layer is attached to the inner wall of the pores formed between the electrode particles, isolating the solid electrolyte in the pores from the electrode particles.

2. The electrode sheet according to claim 1, characterized in that: The electrode particles include an active material, a conductive agent and a binder.

3. The electrode sheet according to claim 1, characterized in that: The current collector is a metal or an alloy; The metal includes at least one of aluminum, copper, nickel and titanium; The alloy includes at least one of aluminum alloy, copper alloy, nickel alloy and titanium alloy.

4. The electrode sheet according to claim 1, characterized in that: The solid electrolyte is a product obtained by solidifying the precursor solution; The precursor solution includes an initiator, a polymer monomer and a liquid electrolyte.

5. The electrode sheet according to claim 2, characterized in that: The active material includes at least LiFePO4, LiNi x Co y Mn (1-x-y) O2, LiMn2O4, graphite and SiO x One of the following; Among them, LiNi x Co y Mn (1-x-y) In O2, 0≤x+y≤1, SiO x Where 0≤x≤2.

6. The electrode sheet according to claim 2, characterized in that: The conductive agent includes at least one of carbon black, carbon nanotubes and graphene.

7. The electrode sheet according to claim 2, characterized in that: The binder includes at least one of PVDF, CMC, SBR, PAA and LiPAA.

8. The electrode sheet according to claim 4, characterized in that: The liquid electrolyte includes a lithium salt and a solvent; The lithium salt includes at least one of LiPF6, LiBF4, LiClO4, LiBOB, LiDFOB, LiFSI and LiTFSI; The solvent includes at least one of EC, DMC, DEC, EMC and PC.

9. The electrode sheet according to claim 4, characterized in that: The polymer monomer includes at least one of PEGA, PEGMA, EGPEA, MMA, PEGMEM, TEGDA, PEGDA, TPGDA, EGDMA, PEGDMA, HDDA, TEGDMA, BDDA, BEMA, TMPTA, TMPTMA, ETPTA, PETEA, TAEP, FPCA, VC and DOL; The initiator includes at least one of AIBN, ABVN, BPO, LPO, TAPP, TBPP and H2O.

10. A battery, characterized in that: The battery comprises the electrode sheet according to any one of claims 1 to 9.

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