Battery

Abstract

The present invention discloses a method for manufacturing a battery, comprising: a manufacturing process for manufacturing a polymer resin metal complex (complex) for a positive electrode, wherein the manufacturing process for the positive electrode mixture comprises mixing an acrylic resin material with a compound containing a metal element to form a polymer resin metal complex (complex) for a positive electrode, and forming a layer containing the polymer resin metal complex for a positive electrode on a positive electrode collector to form a manufacturing process for a positive electrode plate; a manufacturing process for manufacturing a polymer resin metal complex (complex) for a negative electrode, wherein the manufacturing process for the negative electrode mixture comprises mixing an acrylic resin material or polyvinyl alcohol with a compound containing a metal element whose oxidation number increases and decreases between 2 and 3 to form a polymer resin metal complex (complex) for a negative electrode, and forming a layer containing the polymer resin metal complex for a negative electrode on a negative electrode collector to form a manufacturing process for a negative electrode plate; and a process for manufacturing a battery cell using the positive and negative plates.

Description

Technical Field

[0001] The present invention relates to a method for manufacturing a battery, a battery, a method for manufacturing a positive electrode, a positive electrode, a method for manufacturing a negative electrode, and a negative electrode. Background Art

[0002] Lithium-ion batteries are widely known as batteries (see Japanese Patent No. 6070822). However, lithium-ion batteries are flammable and pose a fire hazard. Due to these issues, a new battery that can replace lithium-ion batteries is being sought. Summary of the Invention

[0003] In order to solve the above problems, the present invention provides a method for manufacturing a battery.

[0004] The technical solution adopted by the present invention to solve the technical problem includes: providing a method for manufacturing a battery, comprising:

[0005] Manufacturing process of polymer resin metal complex (complex) for positive electrode, i.e. manufacturing process of positive electrode mixture:

[0006] A process of forming a layer containing the positive electrode polymer resin metal complex (complex) on a positive electrode collector plate, i.e., a positive electrode plate manufacturing process;

[0007] The manufacturing process of polymer resin metal complex (complex) for negative electrode, that is, the manufacturing process of negative electrode mixture;

[0008] A process of forming a layer containing the negative electrode polymer resin metal complex (complex) on a negative electrode collector plate, i.e., a negative electrode plate manufacturing process;

[0009] and a process for manufacturing battery cells using the positive electrode plates and negative electrode plates, namely, a battery cell manufacturing process;

[0010] The positive electrode mixture manufacturing process includes mixing an acrylic resin material with a compound containing a metal element to obtain a positive electrode polymer resin metal complex (complex);

[0011] The negative electrode mixture manufacturing process includes mixing acrylic resin material or polyvinyl alcohol with a compound containing a metal element whose oxidation number varies from 2 to 3 to obtain a high molecular resin metal complex (complex) for the negative electrode.

[0012] Effect of the invention: The present invention provides a novel battery manufacturing method. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 a flow chart showing a method for manufacturing a battery;

[0014] Figure 2 A flow chart showing a method for manufacturing a positive electrode plate;

[0015] Figure 3 A flow chart showing a method for manufacturing a negative electrode plate;

[0016] Figure 4 A schematic diagram showing the structure of the positive electrode plate;

[0017] Figure 5 A schematic diagram showing the structure of the negative electrode plate;

[0018] Figure 6 a schematic diagram showing the battery structure;

[0019] Figure 7 A schematic diagram showing a method for manufacturing a positive electrode plate and a negative electrode plate;

[0020] Figure 8 A schematic diagram showing a method for manufacturing a battery;

[0021] Figure 9 Indicates the performance of the battery before charging;

[0022] Figure 10 Indicates the performance of the battery when charging;

[0023] Figure 11 Indicates the performance of a battery when discharged.

[0024] Explanation of symbols:

[0025] 1: Positive plate

[0026] 11: Positive electrode collector plate

[0027] 12: Positive electrode mixture

[0028] 2: Negative plate

[0029] 21: Negative electrode collector plate

[0030] 22: Negative electrode mixture

[0031] 3: Diaphragm

[0032] 4: Insulator

[0033] 5. Battery DETAILED DESCRIPTION

[0034] The following describes the preferred embodiments of the present invention for understanding the present invention. However, the present invention is not limited to the following preferred embodiments, and can be freely modified within the scope of the present invention.

[0035] The present invention provides a method for manufacturing a battery, comprising:

[0036] Positive electrode mixture manufacturing project for manufacturing positive electrode polymer resin metal complex mixture;

[0037] A positive electrode plate manufacturing process is performed by forming a layer containing the positive electrode polymer resin metal complex mixture on a positive electrode current collector plate to form a positive electrode plate;

[0038] Anode mixture manufacturing project for manufacturing anode polymer resin metal complex mixture;

[0039] A negative electrode plate manufacturing process is formed by forming a layer containing the negative electrode polymer resin metal complex mixture on a negative electrode current collector plate to manufacture the negative electrode plate;

[0040] and a manufacturing process for manufacturing a battery cell using the positive electrode plate and the negative electrode plate;

[0041] The positive electrode mixture manufacturing process includes mixing an acrylic resin material with a compound containing a metal element to form a positive electrode polymer resin metal complex mixture (i.e., a positive electrode polymer resin complex);

[0042] The negative electrode mixture manufacturing process includes mixing acrylic resin material or polyvinyl alcohol with a compound containing a metal element with an oxidation number varying between 2 and 3 to form a negative electrode polymer resin metal complex mixture (i.e., a negative electrode polymer resin metal complex).

[0043] The battery manufactured by the battery manufacturing method according to the present invention has flame retardancy and a long life.

[0044] In a preferred embodiment of the present invention, the positive electrode mixture manufacturing process includes mixing an acrylic resin material with a compound containing a metal element with an oxidation number varying from 5 to 4 to form a positive electrode polymer resin metal complex (complex).

[0045] In a preferred embodiment of the present invention, the positive electrode mixture production process includes mixing an acrylic resin material with a compound containing a pentavalent metal, and the negative electrode mixture production process includes mixing an acrylic resin material with a mixture containing a divalent metal.

[0046] In a preferred embodiment of the present invention, the battery cell manufacturing process is a process of sandwiching a separator between the positive electrode plate and the negative electrode plate.

[0047] In a preferred embodiment of the present invention, the positive electrode mixture production process further includes a step of mixing carbon, and the negative electrode mixture production process further includes a step of mixing carbon.

[0048] The present invention relates to a battery comprising:

[0049] Positive plates, negative plates and separators;

[0050] The positive electrode plate comprises a positive electrode polymer resin metal complex (complex) and a positive electrode current collector plate.

[0051] The positive electrode polymer resin metal complex (complex) comprises acrylic resin and metal elements,

[0052] The negative electrode plate comprises a negative electrode polymer resin metal complex (complex) and a negative electrode current collector plate.

[0053] The high molecular weight resin metal complex for the negative electrode includes acrylic resin or polyvinyl alcohol and a metal element whose oxidation number increases or decreases between 2 and 3 valences.

[0054] The battery according to the present invention has flame retardancy and a long life.

[0055] Furthermore, the positive electrode polymer resin metal complex preferably contains an acrylic resin and a metal element whose oxidation number increases or decreases between 5 and 4.

[0056] Furthermore, the positive electrode polymer resin metal complex more preferably contains an acrylic resin and a metal element whose oxidation number increases or decreases between 5 and 3.

[0057] In a preferred embodiment of the present invention, a separator is interposed between the positive electrode plate and the negative electrode plate, and the positive electrode polymer complex-coated surface of the positive electrode plate and the negative electrode polymer complex-coated surface of the negative electrode plate are stacked toward the separator.

[0058] Furthermore, the present invention also relates to a method for manufacturing a positive electrode plate, comprising:

[0059] A positive electrode mixture manufacturing process for manufacturing a positive electrode polymer resin metal complex, and a positive electrode plate manufacturing process for manufacturing a positive electrode plate by forming a layer containing the positive electrode polymer resin metal complex on a positive electrode collector plate, wherein the positive electrode mixture manufacturing process includes mixing an acrylic resin material with a compound containing a metal element to form a positive electrode polymer resin metal complex.

[0060] The above is a method for manufacturing a positive electrode plate.

[0061] Furthermore, preferably, the positive electrode mixture manufacturing process includes mixing an acrylic resin material with a compound containing a metal element whose oxidation number increases and decreases between 5 and 4 to form a positive electrode polymer resin metal complex (complex).

[0062] More preferably, the positive electrode mixture manufacturing process includes mixing an acrylic resin material with a compound containing a metal element whose oxidation number increases and decreases between 5 and 3 to form a positive electrode polymer resin metal complex (complex).

[0063] Furthermore, the present invention relates to a positive electrode plate comprising a positive electrode polymer resin metal complex and a positive electrode current collector plate, wherein the positive electrode polymer resin metal complex (complex) contains an acrylic resin and a metal element.

[0064] Furthermore, in the present invention, preferably, the positive electrode polymer resin metal complex comprises an acrylic resin and a metal element whose oxidation number increases or decreases between 5 and 4 valences.

[0065] In addition, the present invention relates to a method for manufacturing a negative electrode plate, including a negative electrode mixture manufacturing process for manufacturing a polymer resin metal complex for a negative electrode, and a negative electrode plate manufacturing process for manufacturing a negative electrode plate by forming a layer containing the polymer resin metal complex for a negative electrode (complex) on a negative electrode collector plate, wherein the negative electrode mixture manufacturing process includes mixing an acrylic resin material or polyvinyl alcohol with a mixture containing a metal element whose oxidation number increases and decreases between 2 and 3 to form a polymer resin metal complex for a negative electrode (complex).

[0066] The above is a method for manufacturing a negative electrode plate.

[0067] The present invention also relates to a negative electrode plate comprising a negative electrode polymer resin metal complex and a negative electrode current collector plate, wherein the negative electrode polymer resin metal complex comprises an acrylic resin or polyvinyl alcohol and a metal element whose oxidation number increases and decreases between 2 and 3.

[0068] The above is a negative plate.

[0069] <1> Battery manufacturing method

[0070] The present invention relates to a method for manufacturing a battery, comprising:

[0071] A positive electrode mixture manufacturing process (S1) for manufacturing a positive electrode polymer resin metal complex (complex);

[0072] A positive electrode plate manufacturing process (S2) of manufacturing a positive electrode plate (1) by forming a layer containing the positive electrode polymer resin metal complex on a positive electrode current collector plate (11);

[0073] A negative electrode mixture manufacturing process (S3) for manufacturing a negative electrode polymer resin metal complex;

[0074] A negative electrode plate manufacturing process (S4) of manufacturing a negative electrode plate (2) by forming a layer containing the negative electrode polymer resin metal complex (complex) on a negative electrode collector plate (21);

[0075] And a battery cell manufacturing process (S5) of manufacturing a battery cell using the positive electrode plate (1) and the negative electrode plate (2).

[0076] The positive electrode mixture manufacturing process (S1) includes mixing an acrylic resin material and a compound containing a metal element to form a high molecular resin metal complex (complex) for the positive electrode.

[0077] The negative electrode mixture manufacturing process (S3) includes mixing acrylic resin material or polyvinyl alcohol with a compound containing a metal element whose oxidation state changes from divalent to trivalent to form a high molecular resin metal complex (complex) for the negative electrode.

[0078] The above is a method for manufacturing a battery.

[0079] Furthermore, the positive electrode mixture manufacturing step (S1) preferably includes mixing an acrylic resin material with a compound containing a metal element whose oxidation state increases and decreases between 5 and 4 valences to form a positive electrode polymer resin metal complex (complex).

[0080] Figure 1 A flow chart showing a battery manufacturing method.

[0081] The following describes each process in detail.

[0082] <1-1> Positive electrode mixture manufacturing process (S1)

[0083] In the positive electrode mixture production step (S1), a positive electrode polymer resin complex is produced. Furthermore, the positive electrode mixture production step (S1) includes mixing an acrylic resin material and a compound containing a metal element to obtain a positive electrode polymer resin metal complex (complex).

[0084] The compound containing a metal element is preferably a compound containing a metal element whose oxidation state increases and decreases between 5-valent and 4-valent.

[0085] The acrylic resin material preferably contains a composition containing an acrylate monomer as a main component.

[0086] The average molecular weight of the acrylic resin material is preferably 3000 or more, more preferably 4000 or more, and even more preferably 4500 or more. Furthermore, the average molecular weight of the acrylic resin material is preferably 7000 or less, more preferably 6000 or less, and even more preferably 5500 or less. By controlling the average molecular weight of the acrylic resin material within the above range, a positive electrode mixture having a good viscosity can be obtained.

[0087] Acrylic resin materials can include a composite of acrylic acid monomers and other monomers (such as methacrylates). The composite can improve properties such as hardness, durability, and weather resistance.

[0088] Furthermore, the acrylic resin material may contain a dispersant, which promotes uniform dispersion of the resin particles without agglomeration.

[0089] Examples of the dispersant include anionic dispersants, cationic dispersants, and nonionic dispersants.

[0090] Anionic dispersants are molecules with charged anionic groups on the surface of resin particles, which repel the resin particles and prevent aggregation. Examples of anionic dispersants include carboxylates and sulfonates.

[0091] Cationic dispersants are molecules with charged cationic groups on the surface of resin particles, which repel the resin particles and prevent aggregation. Examples of cationic dispersants include amine compounds and quaternary ammonium salts.

[0092] Nonionic dispersants are uncharged molecules that adsorb onto the surface of resin particles to aid dispersion. Examples of nonionic dispersants include polyacrylic acid and polyethylene glycol.

[0093] Furthermore, the acrylic resin material may contain a stabilizer, which can prevent the resin from deteriorating.

[0094] Examples of the stabilizer include antioxidants, light stabilizers, metal complexes, and infrared absorbers.

[0095] The function of antioxidants is to prevent reactions with oxygen, delaying the degradation of the resin and thus extending the life of the resin.

[0096] Light stabilizers prevent degradation caused by light such as ultraviolet rays, preventing fading and deterioration.

[0097] Metal complexes prevent degradation caused by oxidation and light, especially by preventing metal ions such as copper and iron from acting as catalysts in the resin. Infrared absorbers can prevent and delay degradation caused by infrared rays.

[0098] The acrylic resin material is preferably liquid at room temperature (25° C.) By using an acrylic resin material that is liquid at room temperature, a layer containing a positive electrode polymer resin metal complex (complex) can be easily formed on the positive electrode current collector plate (11).

[0099] As the acrylic resin material, one or more monomers selected from the group consisting of methyl methacrylate, ethyl acrylate, butyl acrylate, n-butyl acrylate, 2-ethylhexyl acrylate, 2-(dimethylamino)ethyl acrylate, and 2-hydroxyethyl acrylate, and / or a composite of the above monomers and other monomers (e.g., methacrylate) can be used.

[0100] Examples of the metal element whose oxidation number increases and decreases between pentavalent and tetravalent include vanadium (V), niobium (Nb), and tantalum (Ta), and vanadium (V) is preferably used.

[0101] The metal element whose oxidation number increases and decreases between 5 and 4 preferably also increases and decreases between 2 and 3.

[0102] In the present embodiment, the positive electrode mixture production step preferably includes a step of mixing an acrylic resin material and a compound containing a pentavalent metal.

[0103] Examples of the pentavalent metal-containing compound include vanadium oxide (V2O5), vanadates, and metavanadic acid (HVO3), and vanadium oxide and vanadates are preferably used.

[0104] Examples of vanadates include ammonium vanadate (NH 4 VO 3 ), sodium vanadate (NaVO 3 ), and potassium vanadate (KaVO 3 ). Preferably, ammonium vanadate (NH 4 VO 3 ) can be used.

[0105] In the positive electrode mixture manufacturing process (S1), the metal element is coordinated with the oxygen atom and forms a complex (complex) with the carboxyl group or methyl group of acrylic acid to form an acrylate complex (complex).

[0106] In this embodiment, the positive electrode mixture production process may also include a process of mixing the acrylic resin material with a compound containing a tetravalent metal.

[0107] The ratio of the acrylic resin material to the metal element may be such that the acrylic resin material is used in an appropriate excess. That is, the ratio of the acrylic resin material to the compound containing the metal having an oxidation number of 5 may be such that the acrylic resin material is used in an appropriate excess.

[0108] Specifically, the weight ratio of the acrylic resin material to the compound containing a metal having an oxidation number of 5 or 4 is preferably 1:0.03 to 0.20, more preferably 1:0.05 to 0.15, and even more preferably 1:0.08 to 0.12.

[0109] By adding a sufficient amount of acrylic resin material, the battery according to the present invention can be manufactured more reliably.

[0110] The positive electrode mixture (12) may contain substances other than the positive electrode polymer resin metal complex (complex).

[0111] The positive electrode mixture production step (S1) preferably further includes a step of mixing carbon. The carbon is preferably carbon powder.

[0112] The ratio of the acrylic resin material to the compound containing a metal having an oxidation number of 5 or 4 and carbon is preferably 1:0.03-0.20:0.03-0.20, more preferably 1:0.05-0.15:0.05-0.15, and even more preferably 1:0.08-0.12:0.08-0.12.

[0113] By setting the above numerical range, a sufficient amount of acrylic resin material can be added, thereby more reliably manufacturing the battery according to the present invention.

[0114] <1-2> Positive plate manufacturing process (S2)

[0115] The present invention includes a positive electrode plate manufacturing step (S2) for manufacturing the positive electrode plate by forming a layer containing a positive electrode polymer resin metal complex (complex) on a positive electrode current collector plate (11).

[0116] As the positive electrode current collector plate (11), a copper plate or a carbon graphite film can be preferably used, and a carbon graphite film is more preferably used.

[0117] The thickness of the positive electrode collector plate (11) is preferably 0.01 mm or more, more preferably 0.03 mm or more, and further preferably 0.05 mm or more. In addition, the thickness of the positive electrode collector plate (11) is preferably 0.015 mm or less, more preferably 0.12 mm or less, and further preferably 0.1 mm or less.

[0118] By controlling the thickness of the positive electrode current collector plate (11) within the above range, the efficiency of the battery can be improved.

[0119] The positive electrode polymer resin metal complex (complex) can be used as a material in the positive electrode mixture manufacturing process (S1).

[0120] The thickness of the layer containing the positive electrode polymer resin metal complex (wrong body) is preferably 5 μm or more, more preferably 10 μm or more, and further preferably 20 μm or more. In addition, the thickness of the layer containing the positive electrode polymer resin metal complex (wrong body) is preferably 150 μm or less, more preferably 100 μm or less, and further preferably 80 μm or less.

[0121] By controlling the thickness of the layer containing the positive electrode polymer resin metal complex (complex) within the above range, the efficiency of the battery can be improved.

[0122] In the positive electrode plate manufacturing process, preferably, after forming a layer containing a positive electrode polymer metal complex (complex) on the positive electrode current collector plate, far-infrared irradiation is performed.

[0123] In addition, during the manufacturing process of the positive plate, Figure 7 As shown, the positive electrode collector plate coil is unfolded, and a coating machine is used to form a layer containing a high molecular weight complex (complex) for the positive electrode, i.e., a mixture for the positive electrode. After irradiation with far-infrared rays, the layer containing the high molecular weight complex (complex) for the positive electrode, i.e., the mixture for the positive electrode, is rolled inward again into a coil.

[0124] <1-3> Negative electrode mixture manufacturing process (S3)

[0125] In the negative electrode mixture manufacturing process (S3), a negative electrode polymer resin complex (complex) is manufactured. The negative electrode mixture manufacturing process (S3) includes mixing an acrylic resin material or polyvinyl alcohol with a metal element compound having an oxidation number ranging from 2 to 3 to obtain a negative electrode polymer resin metal complex (complex).

[0126] As the acrylic resin material, the same materials as those described in <1-1> of <1> can be used.

[0127] Examples of the metal element whose oxidation number increases and decreases between divalent and trivalent include iron (Fe), cobalt (Co), and manganese (Mn), and iron (Fe) is preferably used.

[0128] In this embodiment, the negative electrode mixture manufacturing process includes a process of mixing an acrylic resin material with a compound containing a divalent metal. In particular, in the positive electrode mixture manufacturing process, when a compound containing a pentavalent metal is used for the positive electrode, it is preferred that a compound containing a divalent metal be used for the negative electrode.

[0129] In particular, in the process of manufacturing the positive electrode mixture, when a compound containing a tetravalent metal is used (for the positive electrode), it is preferable to use a compound containing a trivalent metal (for the negative electrode).

[0130] Examples of the compound containing a divalent metal include iron oxide (FeO), iron sulfate (FeSO 4 ), and iron chloride (FeCl 2 ), and iron oxide (FeO) is preferably used.

[0131] Next, in the negative electrode mixture manufacturing process (S3), the metal element whose oxidation number varies from divalent to trivalent is coordinated with the oxygen atom and forms a complex with the carboxyl group or methyl group of acrylic acid or polyvinyl alcohol, thereby forming an acrylate complex.

[0132] In this embodiment, the negative electrode mixture production step may include a step of mixing an acrylic resin material or polyvinyl alcohol with a compound containing a trivalent metal.

[0133] The negative electrode mixture 22 may contain a mixture other than the negative electrode polymer resin complex (complex).

[0134] The ratio of the acrylic resin material or polyvinyl alcohol to the metal element having an oxidation number varying from divalent to trivalent is preferably such that the acrylic resin material or polyvinyl alcohol is in excess. In other words, the ratio of the acrylic resin material or polyvinyl alcohol to the compound containing a divalent metal is also preferably such that the acrylic resin material is in excess.

[0135] Specifically, the ratio of the acrylic resin material or polyvinyl alcohol to the compound containing a divalent or trivalent metal is preferably 1:0.03 to 0.20, more preferably 1:0.05 to 0.15, and even more preferably 1:0.08 to 0.12.

[0136] By controlling the ratio within this range, the acrylic resin material or polyvinyl alcohol can be sufficiently added, thereby more reliably manufacturing the battery according to the present invention.

[0137] The negative electrode mixture (22) may contain other substances in addition to the negative electrode polymer resin complex.

[0138] The negative electrode mixture production step (S3) preferably further includes a step of mixing carbon. The carbon is preferably carbon powder.

[0139] The ratio of the acrylic resin material or polyvinyl alcohol to the compound containing a divalent or trivalent metal and carbon is preferably 1:0.03-0.20:0.03-0.20, more preferably 1:0.05-0.15:0.05-0.15, and even more preferably 1:0.08-0.12:0.08-0.12.

[0140] By controlling the ratio within the above range, the acrylic resin material or polyvinyl alcohol can be sufficiently added, and the battery according to the present invention can be manufactured more reliably.

[0141] <1-4> Negative electrode plate manufacturing process (S4)

[0142] The present invention includes a negative electrode plate manufacturing process (S4), which manufactures a negative electrode plate (2) by forming a layer containing a negative electrode polymer resin metal complex (complex) on a negative electrode collector plate (21).

[0143] As the negative electrode current collector plate (21), an aluminum plate or a carbon graphite plate can be preferably used, but a carbon graphite film is more preferably used.

[0144] The thickness of the negative electrode collector plate (21) is preferably 0.01 mm or more, more preferably 0.03 mm or more, and further preferably 0.05 mm or more. In addition, the thickness of the negative electrode collector plate (11) is preferably 0.15 mm or less, more preferably 0.12 mm or less, and further preferably 0.1 mm or less.

[0145] By controlling the thickness of the negative electrode collector plate (21) within the above range, the efficiency of the battery can be improved.

[0146] The negative electrode polymer resin metal complex (complex) may use the material produced in the negative electrode mixture production step ( S3 ).

[0147] The thickness of the layer comprising the negative electrode polymer resin metal complex (complex) is preferably 5 μm or more, more preferably 10 μm or more, and further preferably 20 μm or more. In addition, the thickness of the layer comprising the positive electrode polymer resin metal complex (complex) is preferably 150 μm or less, more preferably 100 μm or less, and further preferably 80 μm or less.

[0148] By controlling the thickness of the layer containing the negative electrode polymer resin metal complex (complex) within the above range, the efficiency of the battery can be improved.

[0149] In the negative electrode plate manufacturing process, it is preferred that a layer containing a polymer metal complex (complex) for a negative electrode is formed on the negative electrode current collector plate and then irradiated with far-infrared rays.

[0150] Also, in the negative plate manufacturing process, such as Figure 7 As shown, the negative electrode collector plate coil is unfolded, and a coating machine is used to form a layer containing a high molecular weight complex (complex) for the negative electrode, i.e., a mixture for the negative electrode. After irradiation with far-infrared rays, the layer containing the high molecular weight complex (complex) for the negative electrode, i.e., the mixture for the negative electrode, is rolled inward again to form a coil.

[0151] <1-5> Battery cell manufacturing process (S5)

[0152] The battery cell manufacturing process (S5) is preferably a process of sandwiching a separator (3) between the positive electrode plate (1) and the negative electrode plate (2).

[0153] The positive electrode plate (1) coated with the positive electrode mixture (12) and the negative electrode plate (2) coated with the negative electrode mixture (22) are preferably stacked with their surfaces facing the separator (3).

[0154] As the separator (3), cellulose acetate can be preferably used.

[0155] The use of cellulose acetate allows for more accurate production of the battery according to the present invention.

[0156] Furthermore, during the lamination process, it is preferable to spray an electrolyte onto the separator. As the electrolyte, for example, an organic germanium solution can be used.

[0157] By using an organic germanium solution, the battery according to the present invention can be manufactured more accurately.

[0158] The thickness of the separator (3) is preferably 0.5 μm or more, more preferably 1.0 μm or more, and further preferably 2.0 μm or more. In addition, the thickness of the separator (3) is preferably 30 μm or less, more preferably 20 μm or less, and further preferably 10 μm or less.

[0159] The thinner the diaphragm (3) is, the smaller the internal resistance can be.

[0160] In the battery cell manufacturing process (S5), it is further preferred to stack an insulator (4) on the outside of the positive electrode plate (1) or the negative electrode plate (2). For example, Figure 6 As shown, the positive electrode plate (1) (the coating surface of the positive electrode mixture (12) faces the separator side), the separator (3), the negative electrode plate (2) (the coating surface of the negative electrode mixture (22) faces the separator side), and the insulator (4) are preferably stacked in this order.

[0161] Then, the stacked materials are preferably crimped using a crimping device.

[0162] In the battery cell manufacturing process, Figure 8 As shown, the positive plate (1), the separator (3), the negative plate (2), and the insulator (4) are unfolded, and after being crimped by a crimping device, the stacked materials are rolled into a coil.

[0163] The resulting laminate is then wound and placed in a polycarbonate can, an electrolyte is added, and the can is sealed. If the laminate has an insulator (4) laminated on the negative electrode plate (2), the laminate can be wound with either the positive electrode plate (1) or the insulator (4) as the outer side. Furthermore, if the laminate has an insulator (4) laminated on the positive electrode plate (1), the laminate can be wound with either the negative electrode plate (2) or the insulator (4) as the outer side.

[0164] <2> Battery

[0165] The present invention relates to a battery comprising:

[0166] A positive electrode plate (1), a negative electrode plate (2), and a separator (3), wherein the positive electrode plate (1) comprises a positive electrode polymer resin metal complex (complex) and a positive electrode current collector plate (11), wherein the positive electrode polymer resin metal complex (complex) comprises an acrylic resin and a metal element, and the negative electrode plate (21) comprises a negative electrode polymer resin metal complex (complex) and a negative electrode current collector plate (21), wherein the negative electrode polymer resin metal complex (complex) comprises an acrylic resin and a metal element with an oxidation number varying between 2 and 3. The positive electrode polymer resin metal complex preferably comprises an acrylic resin and a metal element with an oxidation number varying between 5 and 4.

[0167] Hereinafter, each component will be described in detail.

[0168] <2-1> Positive plate (1)

[0169] Figure 4 The structure of the positive plate is shown.

[0170] The positive electrode plate (1) comprises a positive electrode polymer resin metal complex (complex) and a positive electrode current collector plate (11), wherein the positive electrode polymer resin metal complex (complex) comprises acrylic resin and metal elements.

[0171] The positive electrode polymer resin metal complex (complex) contains an acrylic resin and a metal element whose oxidation number varies from 5 to 4.

[0172] The positive electrode plate (1) preferably includes a positive electrode current collector plate (11) and a positive electrode mixture (12), wherein the positive electrode mixture (11) includes a positive electrode polymer resin metal complex (complex).

[0173] As the positive electrode collector plate (11), it is possible to use <1> The materials described in <1-2>.

[0174] As acrylic resin, you can use <1> The materials described in <1-1>.

[0175] As metal, you can use <1> The materials described in <1-1>.

[0176] The ratio of the acrylic resin material to the compound containing a metal having an oxidation number of five and carbon is preferably 1:0.03-0.20:0.03-0.20, more preferably 1:0.05-0.15:0.05-0.15, and even more preferably 1:0.08-0.12:0.08-0.12.

[0177] The metal element forms a coordination bond with the oxygen atom and forms a complex with the carboxyl group or methyl group of acrylic acid to form a high molecular metal complex (complex) for the positive electrode.

[0178] The ratio of the acrylic resin material to the metal element is preferably such that the acrylic resin material is in excess. That is, the ratio of the acrylic resin material to the compound containing the pentavalent metal is such that the acrylic resin is used in an appropriate excess.

[0179] Specifically, the ratio of the acrylic resin material to the pentavalent metal-containing compound is preferably 1:0.03 to 0.20, more preferably 1:0.05 to 0.15, and even more preferably 1:0.08 to 0.12.

[0180] The positive electrode mixture (12) may also contain carbon, preferably carbon powder.

[0181] The ratio of the acrylic resin material, the pentavalent metal-containing compound, and carbon is preferably 1:0.03-0.20:0.03-0.20, more preferably 1:0.05-0.15:0.05-0.15, and even more preferably 1:0.08-0.12:0.08-0.12.

[0182] <2-2>Negative plate (2)

[0183] Figure 5 The structure of the negative plate is shown.

[0184] The negative electrode plate (2) comprises a negative electrode polymer resin metal complex (complex) and a negative electrode current collector plate (21). The negative electrode polymer resin metal complex (complex) comprises acrylic resin or polyvinyl alcohol and a metal element with an oxidation number varying from 2 to 3.

[0185] The negative electrode plate (2) includes a negative electrode current collector plate (21) and a negative electrode mixture (22), and the negative electrode mixture (21) includes a high molecular resin metal complex (complex) for the negative electrode.

[0186] As the negative electrode collector plate (21), it is possible to use <1> The materials described in <1-4>.

[0187] As acrylic resin, it can be used in <1> The substance described in <1-1>.

[0188] As metals whose oxidation numbers increase and decrease between 2 and 3, they can be used <1> The substances described in <1-3>.

[0189] The metal element whose oxidation number increases or decreases between 2 and 3 forms a coordination bond with the oxygen atom and forms a complex with the carboxyl group or methyl group of acrylic acid to form a high molecular metal complex (complex) for the negative electrode.

[0190] The ratio of the acrylic resin material or polyvinyl alcohol to the metal element with an oxidation number varying between 2 and 3 can be such that the acrylic resin is used in an appropriate excess. In other words, the ratio of the acrylic resin material or polyvinyl alcohol to the compound containing a divalent metal can also be such that the acrylic resin material or polyvinyl alcohol is used in an appropriate excess.

[0191] Specifically, the ratio of the acrylic resin material or polyvinyl alcohol to the compound containing a divalent metal is preferably 1:0.05 to 0.15, and more preferably 1:0.08 to 0.12.

[0192] By setting the ratio within the above range, the acrylic resin material or polyvinyl alcohol can be sufficiently added, thereby more effectively manufacturing the battery according to the present invention.

[0193] The negative electrode mixture (22) preferably contains carbon. The carbon is preferably carbon powder.

[0194] The ratio of the acrylic resin material or polyvinyl alcohol to the compound containing a divalent metal and carbon is preferably 1:0.05-0.15:0.05-0.15, and more preferably 1:0.08-0.12:0.08-0.12.

[0195] By setting the ratio within the above range, the acrylic resin material or polyvinyl alcohol can be sufficiently added, thereby more effectively manufacturing the battery according to the present invention.

[0196] <2-3> Diaphragm (3)

[0197] As the separator, the materials described in <1-5> in <1> can be used.

[0198] <2-4> Batteries

[0199] The structure of the battery is as follows Figure 6 shown.

[0200] The battery in this embodiment preferably has a structure in which a separator (3) is sandwiched between a positive electrode plate (1) and a negative electrode plate (2). In addition, the positive electrode plate (1) is coated with a positive electrode mixture (12) and the negative electrode plate (2) is coated with a negative electrode mixture (22) so as to face the separator (3).

[0201] The battery in this embodiment may include an insulator (4). Specifically, the insulator (4) is stacked outside the positive electrode plate (1) or the negative electrode plate (2).

[0202] The battery in this embodiment is a stack of a positive electrode plate (1), a separator (3), a negative electrode plate (2), and an insulator (4), which is wound in such a way that the positive electrode plate (1) or the insulator (4) is located on the outside. The stack is then placed in a polycarbonate can, and an electrolyte is added thereto before being sealed.

[0203] During charging, an oxidation reaction occurs at the positive electrode and a reduction reaction occurs at the negative electrode.

[0204] During discharge, a reduction reaction occurs at the positive electrode and an oxidation reaction occurs at the negative electrode.

[0205] Example

[0206] <Materials>

[0207] Polyacrylic Acid (5,000): Wako Grade 1, Fujifilm Wako Pure Chemical Industries, Ltd., molecular formula [-CH2CH(COOH)-], average molecular weight approximately 5,000;

[0208] Ammonium vanadate (V): Fujifilm Wako Pure Chemical Industries, Ltd.

[0209] Carbon graphite: Toyo Tanso, 0.05mm~0.1mm;

[0210] Copper plate;

[0211] Iron(II) Chloride Tetrahydrate, special grade reagent, Fujifilm Wako Pure Chemical Industries, Ltd., molecular formula: FeCl2·4H2O

[0212] ·formaldehyde

[0213] Aluminum plate

[0214] Cellulose acetate: Mitsubishi Paper, NanoBase2

[0215] Fluororesin (fluororesin, PTFE, tetrafluoroethylene), thickness 0.05mm

[0216] [1] Positive electrode mixture manufacturing process (S1)

[0217] 80-120 g of acrylic resin and 8-12 g of ammonium vanadate (V) are mixed and reacted, and 8-12 g of carbon and 3 g of water are further mixed into the resulting mixed solution.

[0218] Through the above reaction, vanadium forms a coordination bond with the oxygen atom and forms a complex with the carboxyl group and methyl group of acrylic acid.

[0219] [2] Positive plate manufacturing process (S2)

[0220] The positive electrode mixture (12) obtained in the positive electrode mixture production step (S1) is applied to a positive electrode current collector plate (copper plate) (11). The dimensions of the positive electrode current collector plate (11) are 60 mm (length) × 70 mm (width) × 0.05 mm (thickness). The applied thickness of the positive electrode mixture (12) is not less than 10 μm and not more than 100 μm.

[0221] Thereafter, the positive electrode mixture (12) coated on the positive electrode current collector plate (11) is completely dried.

[0222] [3] Negative electrode mixture manufacturing process (S3)

[0223] 80-120 g of an aqueous acrylic resin and 8-12 g of iron (II) chloride are mixed and reacted, and 8-12 g of carbon, 4-6 g of water, and 4-6 g of formaldehyde are further mixed into the resulting mixed solution.

[0224] Through the above reaction, the iron ion forms a coordination bond with the oxygen atom of the carboxyl group of acrylic acid to form a complex.

[0225] [4] Negative plate manufacturing process (S4)

[0226] The negative electrode mixture (22) obtained in the negative electrode mixture production step (S3) is applied to a negative electrode current collector plate (aluminum plate) (21). The negative electrode current collector plate (21) has a size of 60 mm × 70 mm × 0.05 mm. The coating thickness of the negative electrode mixture (22) is 10 μm or more and 100 μm or less.

[0227] Thereafter, the negative electrode mixture (22) coated on the negative electrode current collector plate (21) is completely dried.

[0228] [5] Battery cell manufacturing process (S5)

[0229] The positive electrode plate (1) obtained by [1] to [2] and the negative electrode plate (2) obtained by [3] to [4] are stacked with a separator (3) and a fluororesin (insulator) (4) to produce a battery cell.

[0230] As the separator (3), cellulose acetate with a thickness of 0.9 μm to 10 μm was used. On the cellulose acetate, an electrolyte: organic germanium solution was sprayed.

[0231] The stacking order is as follows Figure 6 As shown, the process is carried out in the order of positive electrode plate (1), separator (3), negative electrode plate (2), and insulator (4). The surface of the positive electrode plate (1) coated with the positive electrode mixture (12) and the surface of the negative electrode plate (2) coated with the negative electrode mixture (22) are stacked toward the separator (3).

[0232] The stacked materials are crimped using a crimping device.

[0233] The obtained laminate was wound with the positive electrode facing outward, placed in a polycarbonate can, and sealed after adding an electrolyte.

[0234] Table 1 shows the characteristics of the fabricated batteries.

[0235]

Table 1

[0236]

[0237] [6] Charging

[0238] The resulting battery was charged using a charger. Specifically, the positively charged side was connected to the positive terminal and charged at a current of at least 10 mA but no more than 40 mA. The charging power was approximately 20,000 mW / sec. Charging was stopped when the voltage dropped below 3.0 V.

[0239] During charging, an oxidation reaction occurs at the positive electrode and a reduction reaction occurs at the negative electrode.

[0240] Figure 9 Shows the discharge data before the first charge. Figure 10 The charging power data during the first charge is shown.

[0241] Figure 9 The vertical axis represents the discharge power (mW) at each time point. Figure 9 It can be seen that there is a slight discharge phenomenon even before charging.

[0242] Figure 10 The line graph in the figure represents the charging power (mW) at each time point (corresponding to the left vertical axis), and the bar graph represents the cumulative charging power (mW) up to that time point (corresponding to the right vertical axis).

[0243] from Figure 10 It can be seen that the battery manufactured by this embodiment can be charged.

[0244] [7] Discharge

[0245] The charged battery is discharged at an output limit of 20 mA / sec.

[0246] During discharge, a reduction reaction occurs at the positive electrode and an oxidation reaction occurs at the negative electrode.

[0247] Figure 11 Shows discharge data after the first charge.

[0248] The bar graph shows the discharge power (mW) at each time point (corresponding to the left vertical axis), and the line graph shows the cumulative discharge power (mW) up to that time point (corresponding to the right vertical axis).

[0249] from Figure 11 It can be seen that the battery manufactured by this embodiment can achieve discharge.

[0250] Industrial Applicability

[0251] According to the present invention, a new type of battery can be provided.

Claims

1. A method for manufacturing a battery, characterized in that: include: Manufacturing process of polymer resin metal complex (complex) for positive electrode, i.e. manufacturing process of positive electrode mixture: A process of forming a layer containing the positive electrode polymer resin metal complex (complex) on a positive electrode collector plate, i.e., a positive electrode plate manufacturing process; The manufacturing process of polymer resin metal complex (complex) for negative electrode, that is, the manufacturing process of negative electrode mixture; A process of forming a layer containing the negative electrode polymer resin metal complex (complex) on a negative electrode collector plate, i.e., a negative electrode plate manufacturing process; and a process for manufacturing battery cells using the positive electrode plates and negative electrode plates, namely, a battery cell manufacturing process; The positive electrode mixture manufacturing process includes mixing an acrylic resin material with a compound containing a metal element to obtain a positive electrode polymer resin metal complex (complex); the positive electrode polymer resin metal complex uses a metal element with an oxidation number that increases or decreases between 5 and 4 valences; The negative electrode mixture manufacturing process includes mixing acrylic resin material or polyvinyl alcohol with a compound containing a metal element whose oxidation number varies from 2 to 3 to obtain a high molecular resin metal complex (complex) for the negative electrode.

2. The method for manufacturing a battery according to claim 1, wherein: The battery cell manufacturing process is a process of sandwiching a separator between the positive electrode plate and the negative electrode plate.

3. The method for manufacturing a battery according to claim 1, wherein: The positive electrode mixture production process further includes a step of mixing carbon, and the negative electrode mixture production process further includes a step of mixing carbon.

4. A battery manufactured by the method according to any one of claims 1 to 3, characterized in that: Including positive plate, negative plate and separator; The positive electrode plate comprises a positive electrode polymer resin metal complex (complex) and a positive electrode collector plate; The positive electrode polymer resin metal complex (complex) comprises acrylic resin and metal elements; The negative electrode plate includes a negative electrode polymer resin metal complex (complex) and a negative electrode collector plate; The negative electrode polymer resin metal complex (complex) comprises acrylic resin and a metal element with an oxidation number varying between 2 and 3; The metal element of the positive electrode or the negative electrode forms a coordination bond with the oxygen atom and forms a corresponding complex with the carboxyl group of the acrylic resin.

5. A battery according to claim 4, characterized in that: A separator is sandwiched between the positive electrode plate and the negative electrode plate. The positive electrode polymer resin metal complex (complex) coating surface of the positive electrode plate and the negative electrode polymer resin metal complex coating surface of the negative electrode plate are stacked with the separator side facing the positive electrode polymer resin metal complex.

6. A method for manufacturing a positive electrode plate, characterized in that: include: A process for manufacturing a positive electrode mixture comprising a polymer resin metal complex (complex) for the positive electrode, and A positive electrode plate manufacturing process of manufacturing a positive electrode plate by forming a layer containing the positive electrode polymer resin metal complex (complex) on a positive electrode collector plate; The positive electrode mixture manufacturing process includes mixing acrylic resin with a compound containing a metal element to obtain a polymer resin metal complex (complex) for the positive electrode; the polymer resin metal complex for the positive electrode uses a metal element whose oxidation number increases or decreases between 5 and 4 valences; the metal element forms a coordination bond with an oxygen atom and forms a polymer resin metal complex for the positive electrode with the carboxyl group of the acrylic resin.

7. A positive electrode plate manufactured by the method according to claim 6, characterized in that: include: The positive electrode plate includes a positive electrode polymer resin metal complex (complex) and a positive electrode collector plate. The positive electrode polymer resin metal complex (complex) contains acrylic resin and metal elements.

8. A method for manufacturing a negative electrode plate, characterized in that: include: A negative electrode mixture manufacturing process for manufacturing a negative electrode polymer resin metal complex (complex), and A negative electrode plate manufacturing process of manufacturing a negative electrode plate by forming a (complex) layer containing the negative electrode polymer resin metal complex on the negative electrode collector plate; The negative electrode mixture manufacturing process includes mixing acrylic resin material or polyvinyl alcohol with a compound containing a metal element whose oxidation number varies between 2 and 3 to obtain a high-molecular-weight resin metal complex (complex) for the negative electrode; the metal element forms a coordination bond with the oxygen atom and forms a high-molecular-weight resin metal complex with the carboxyl group of the acrylic resin.

9. A negative electrode plate manufactured by the method according to claim 8, characterized in that: include: The negative electrode plate comprises a negative electrode polymer resin metal complex and a negative electrode current collector plate; The negative electrode polymer resin metal complex (complex) includes acrylic resin or polyvinyl alcohol, and a metal element whose oxidation number varies from 2 to 3.

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