Battery covering putty and battery

Abstract

Provided is a battery covering putty that can quickly extinguish a fire caused by a sudden temperature rise in a battery cell, and that has excellent adhesion, workability, and conformability to an object to be protected. [Solution] According to the present invention, there is provided a battery covering putty containing 10 to 400 parts by mass of a radical generator relative to 100 parts by mass of a liquid organic compound, wherein a 3 g spherical test piece made of the battery covering putty is sandwiched between two aluminum plates specified in JIS H4000 (A1050P), compressed to a thickness of 5 mm, and after 1 minute, peeled vertically at a peeling rate of 300 mm / min, and the peak strength at the time of peeling is 0.5 N or more.

Description

[Technical Field]

[0001] The present invention relates to a battery covering putty and a battery. [Background technology]

[0002] In various types of batteries, such as lithium batteries, internal short circuits or the like can cause thermal runaway in battery cells, resulting in fires, smoke, and other problems. To mitigate the problems caused by such thermal runaway, attempts have been made to use protective materials, such as fireproofing materials or heat insulating layers, around battery cells. Such protective materials are expected to make it difficult for heat from high-temperature battery cells to propagate to other battery cells and the housing that houses the battery cells.

[0003] For example, Patent Document 1 discloses a fire-resistant resin composition containing a heat-absorbing agent having a thermal decomposition starting temperature of 800° C. or less and an endothermic amount of 300 J / g or more, and a resin. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2019-143139 Summary of the Invention [Problem to be solved by the invention]

[0005] The fire-resistant resin composition of Patent Document 1 is, for example, a fire-resistant resin composition that is made by blending a large amount of aluminum hydroxide into EVA resin, and is capable of quickly extinguishing a fire that occurs in the battery of a mobile phone, etc. However, blending a large amount of inorganic compounds into the resin reduces flexibility and adhesiveness, and the resin is unable to conform to the cylindrical battery cell, leaving gaps that could allow a fire to break out to the outside.

[0006] Therefore, the present invention provides a battery covering putty that can extinguish fires caused by sudden temperature rises in battery cells in a short period of time, and that has excellent adhesion, workability, and conformability to the object to be protected. [Means for solving the problem]

[0007] The present inventors have conducted extensive research to solve the above problems, and as a result have found that the above problems can be solved by using a putty with a specific composition, thereby completing the present invention.

[0008] That is, according to the present invention, the following inventions are provided. [1] A battery covering putty containing 10 to 400 parts by mass of a radical generator relative to 100 parts by mass of a liquid organic compound, wherein a 3 g spherical test piece made of the battery covering putty is sandwiched between two aluminum plates specified in JISH4000 (A1050P), compressed to a thickness of 5 mm, and after 1 minute, peeled vertically at a peeling rate of 300 mm / min, and the peak peel strength is 0.5 N or more. [2] The battery covering putty according to [1], which contains 50 to 400 parts by mass of an inorganic compound other than the radical generator. [3] The battery covering putty according to [2], wherein the inorganic compound contains a metal hydroxide. [4] The battery covering putty according to [3], wherein the metal hydroxide contains aluminum hydroxide. [5] The putty for covering a battery according to any one of [1] to [3], wherein the liquid organic compound contains a phosphate ester-based organic compound. [6] The battery covering putty according to any one of [1] to [4], wherein the radical generator contains a carbonate. [7] A battery comprising a member made of the battery covering putty according to any one of [1] to [6]. [Effects of the Invention]

[0009] According to the present invention, it is possible to provide a battery covering putty that can quickly extinguish a fire caused by a sudden temperature rise in a battery, and that has excellent adhesion, workability, and conformability to the object to be protected. Such a battery covering putty has an appropriate softness and can be used as a putty-like protective material that can conform to the shape of a cylindrical battery cell, for example. [Brief explanation of the drawings]

[0010] [Figure 1] 1A and 1B are schematic diagrams illustrating how a putty-like composition is attached to the surface of a cylindrical battery cell. [Figure 2] FIG. 2 is a schematic diagram showing the adhesiveness test. DETAILED DESCRIPTION OF THE INVENTION

[0011] Below, we will explain in detail the form for implementing the present invention (hereinafter referred to as the ``present embodiment''), but the present invention is not limited to this and various modifications are possible within the scope of the gist of the present invention.

[0012] [Battery covering putty] The putty-like composition of the present embodiment is a composition containing a liquid organic compound and a radical generator. The putty-like composition has excellent deformability and can be easily used to conform to different shapes, making it suitable for use as a putty for covering batteries, for example. Each component will be described below.

[0013] <Liquid organic compounds> In the present invention, the liquid organic compound may be any compound that has fluidity at room temperature (23°C) and normal pressure (1 atmosphere), and examples thereof include phosphate ester organic compounds, process oil, mineral oil, silicone oil, liquid polyisoprene, liquid polybutadiene, liquid polychloroprene, liquid polybutene, liquid butyl rubber, and plasticizers such as DOP and DOA. The liquid organic compound is not necessarily limited to one type, and two or more types may be mixed. Among these, it is preferable that the liquid organic compound contains a phosphate ester organic compound from the viewpoint of flame retardancy.

[0014] Examples of phosphate ester organic compounds include trimethyl phosphate, triethyl phosphate, triphenyl phosphate, tricresyl phosphate, trixylenyl phosphate, cresyl diphenyl phosphate, cresyl di-2,6-xylenyl phosphate, tri(chloropropyl)phosphate, tris(tribromoneopentyl)phosphate, xylenyl diphenyl phosphate, 2-ethylhexyl diphenyl phosphate, dimethyl methyl phosphate, resorcinol bis(diphenyl)phosphate, bisphenol A bis(diphenyl)phosphate, bisphenol A bis(dicresyl)phosphate, resorcinol(di-2,6-xylenyl)phosphate, tris(chloroethyl)phosphate, tris(chloropropyl)phosphate, tris(dichloropropyl)phosphate, tris(tribromopropyl)phosphate, diethyl-N,N-bis(2-hydroxyethyl)aminomethyl phosphate, and non-halogen condensed phosphate esters. These may be used alone or in combination of two or more.

[0015] The putty-like composition may contain 15 to 91% by mass of a liquid organic compound, preferably 20 to 40% by mass. When the content is within this range, the composition has a softness suitable for a putty while retarding combustion. The content of the liquid organic compound is, for example, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, or 91% by mass, and may be within a range between any two of the values ​​exemplified here.

[0016] <Radical generator> The radical generator is a component that generates aerosols (radicals) by using thermal energy generated by the combustion of liquid organic compounds, etc. Examples of radical generators include potassium salt-based radical generators and sodium salt-based radical generators.

[0017] Examples of potassium salt radical generators include potassium acetate, potassium propionate, monopotassium citrate, dipotassium citrate, tripotassium citrate, monopotassium trihydrogen ethylenediaminetetraacetate, dipotassium dihydrogen ethylenediaminetetraacetate, tripotassium monohydrogen ethylenediaminetetraacetate, tetrapotassium ethylenediaminetetraacetate, potassium hydrogen phthalate, dipotassium phthalate, potassium hydrogen oxalate, dipotassium oxalate, potassium hydrogen carbonate, and potassium carbonate.

[0018] Examples of sodium salt radical generators include sodium acetate, sodium citrate, and sodium bicarbonate.

[0019] Among these, the radical generator preferably contains a carbonate from the viewpoint of flame retardancy. As the carbonate, potassium bicarbonate, potassium carbonate, sodium bicarbonate, and the like are particularly preferred. Furthermore, these radical generators may be used alone or in combination of two or more.

[0020] The content of the radical generator is 10 to 400 parts by mass, preferably 55 to 320 parts by mass, and more preferably 100 to 230 parts by mass, per 100 parts by mass of the liquid organic compound. If the content of the radical generator is too low, fire extinguishing properties and the like will be deteriorated. If the content of the radical generator is too high, adhesion properties and the like will be deteriorated. The content of the radical generator is, for example, 10, 20, 30, 40, 50, 55, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, 310, 320, 330, 340, 350, 360, 370, 380, 390, or 400 parts by mass relative to 100 parts by mass of the liquid organic compound, and may be within a range between any two of the numerical values ​​exemplified here.

[0021] <Inorganic compounds other than radical generators> Examples of inorganic compounds other than radical generators include metal oxides such as alumina, aluminosilicate, zinc oxide, titanium oxide, calcium oxide, magnesium oxide, iron oxide, tin oxide, antimony oxide, and ferrites; metal hydroxides such as aluminum hydroxide, calcium hydroxide, and magnesium hydroxide; smectite clays such as bentonite, montmorillonite, and hectorite, fibrous clays such as palygorskite, clay minerals such as sericite, illite, glauconite, chlorite, talc, zeolite, beidellite, nontronite, saponite, hectorite, sauconite, stevensite, cristopalite, smectite, kaolin, and hydrotalcite; metal carbonates such as basic magnesium carbonate, calcium carbonate, magnesium carbonate, zinc carbonate, strontium carbonate, and barium carbonate; glass fibers (E glass fibers, C glass fibers, etc.) Fibers, S-glass fiber, D-glass fiber), rock wool, ceramic fibers (silica alumina fiber, alumina fiber, silica fiber), zirconia fiber, carbon fiber, bulk alkaline earth silicate fiber, gypsum fiber, carbon fiber, metal fiber, slag fiber, basalt fiber and other fibrous inorganic compounds; calcium salts such as calcium sulfate and calcium silicate, glass beads, silica-based balun, aluminum nitride, boron nitride, silicon nitride, carbon black, graphite, carbon balun, charcoal powder, various metal powders, potassium titanate, magnesium sulfate, lead zirconate titanate, aluminum borate, molybdenum sulfide, silicon carbide, zinc borate, various magnetic powders, fly ash, inorganic hollow fillers, perlite, obsidian, perlite, rosin, diatomaceous earth, dewatered sludge, boron, sodium tetraborate hydrate (borax), silica, titanium oxide, inorganic oxidizers, phosphate compounds, thermally expandable graphite, vermiculite, etc. These inorganic compounds may be used alone or in combination of two or more.

[0022] The content of the inorganic compound other than the radical generator can be, for example, 50 to 400 parts by mass, preferably 60 to 340 parts by mass, and more preferably 80 to 220 parts by mass, relative to 100 parts by mass of the liquid organic compound. By adding the inorganic compound other than the radical generator within this content range, fire extinguishing properties and the like are improved. The content of the inorganic compound other than the radical generator is, for example, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, 310, 320, 330, 340, 350, 360, 370, 380, 390, or 400 parts by mass per 100 parts by mass of the liquid organic compound, and may be within a range between any two of the numerical values ​​exemplified here.

[0023] <Inorganic oxidizing agents> The inorganic oxidizing agent is a component that burns together with the liquid organic compound to generate thermal energy. Examples of the inorganic oxidizing agent include potassium chlorate, sodium chlorate, strontium chlorate, ammonium chlorate, magnesium chlorate, and potassium perchlorate. One of these may be used alone, or two or more may be used in combination. The inorganic oxidizing agent may be present in an amount of, for example, less than 10% by mass, preferably 0 to 9% by mass, relative to 100% by mass of the total of the radical generator and the inorganic oxidizing agent.

[0024] <Phosphate-based inorganic compounds> In addition to phosphoric acid compounds, phosphorous acid compounds include phosphorous acid compounds, hypophosphorous acid compounds, metaphosphate compounds, pyrophosphate compounds, and polyphosphate compounds.

[0025] Examples of phosphate compounds include monoaluminum phosphate, monosodium phosphate, monopotassium phosphate, monocalcium phosphate, monozinc phosphate, dialuminum phosphate, disodium phosphate, dipotassium phosphate, dicalcium phosphate, dizinc phosphate, trialuminum phosphate, trisodium phosphate, tripotassium phosphate, tricalcium phosphate, trizinc phosphate, trimagnesium phosphate, monoammonium phosphate, diammonium phosphate, tricalcium phosphate, and aluminum phosphate.

[0026] Examples of the phosphite compounds include aluminum phosphite, aluminum hydrogen phosphite, sodium phosphite, potassium phosphite, calcium phosphite, and zinc phosphite.

[0027] Examples of hypophosphite compounds include aluminum hypophosphite, sodium hypophosphite, potassium hypophosphite, calcium hypophosphite, and zinc hypophosphite.

[0028] Examples of metaphosphate compounds include aluminum metaphosphate, sodium metaphosphate, potassium metaphosphate, calcium metaphosphate, zinc metaphosphate, and sodium hexametaphosphate.

[0029] An example of the pyrophosphate compound is sodium pyrophosphate.

[0030] Examples of polyphosphate compounds include ammonium polyphosphate, melamine-modified ammonium polyphosphate, sodium tripolyphosphate, sodium pentapolyphosphate, sodium tetrapolyphosphate, and potassium tripolyphosphate.

[0031] From the viewpoint of shape stability after heating and combustion, aluminum hydrogen phosphite, ammonium polyphosphate, etc. are preferred as the phosphoric acid-based inorganic compound.

[0032] The content of the phosphoric acid-based inorganic compound can be, for example, 0 to 140 parts by mass, and preferably 5 to 140 parts by mass, relative to 100 parts by mass of the liquid organic compound. By being in this range, it is possible to achieve both shape stability at high temperatures and fire extinguishing properties.

[0033] Furthermore, the inorganic compound other than the radical generator preferably contains a metal hydroxide, which can enhance fire extinguishing properties.

[0034] <Thermal Expandable Graphite> Thermally expandable graphite is a crystalline compound that is obtained by surface-treating graphite powder, such as natural graphite or pyrolytic graphite, with an inorganic acid, such as sulfuric acid or nitric acid, and a strong oxidizing agent, such as concentrated nitric acid or permanganate, and that maintains a graphite layer structure. When exposed to a temperature equal to or higher than the expansion initiation temperature (approximately 200°C) under normal pressure, it thermally expands by 100 times or more. Note that the graphite powder, such as natural graphite or pyrolytic graphite, may be subjected to a deoxidation treatment or further neutralization treatment.

[0035] The content of the thermally expandable graphite is, for example, 0 to 100 parts by mass, preferably 0 to 50 parts by mass, and more preferably 0 to 30 parts by mass, relative to 100 parts by mass of the liquid organic compound.Specific examples of the content of the thermally expandable graphite relative to 100 parts by mass of the liquid organic compound include 0, 1, 5, 10, 20, 30, 40, 50, 60, 70, 80, 90, and 100 parts by mass, and may be within a range between any two of the numerical values ​​exemplified here.

[0036] <Other ingredients> In this embodiment, organic compounds other than the liquid organic compound may be used as long as the effect is not impaired. Examples of organic compounds other than the liquid organic compound include elastomers, rubbers, resins, antioxidants, processing aids, lubricants, crosslinking agents, tackifiers, polyhydric alcohol compounds such as pentaerythritol, and fibrous organic compounds such as paper fibers and aramid fibers. The total amount of organic compounds other than the liquid organic compound is, for example, 0 to 50 parts by mass, preferably 0 to 25 parts by mass, and more preferably 0 to 9 parts by mass, per 100 parts by mass of the liquid organic compound. This range prevents adverse effects on fire extinguishing properties, etc.

[0037] <Characteristics> The putty-like composition of this embodiment has a peak peel strength of 0.5 N or more when a 3 g spherical test piece 5 is sandwiched between two aluminum plates 7 specified in JIS H4000 (A1050P), compressed to a thickness of 5 mm, and then peeled vertically after 1 minute at a peeling speed of 300 mm / min (FIG. 2). Specifically, for example, the peeling strength is 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, or 4.0 N, and may be within a range between any two of the values ​​exemplified here or equal to or greater than any two of them. Such peak strength during peeling can be adjusted, for example, by the content of the radical generator and / or the inorganic compound excluding the radical generator.

[0038] The putty-like composition of this embodiment preferably has a softness of 50 [1 / 10 mm] or more but less than 150 [1 / 10 mm], more preferably 65 [1 / 10 mm] or more but less than 135 [1 / 10 mm], and even more preferably 80 [1 / 10 mm] or more but less than 120 [1 / 10 mm], when measured according to JIS A5752 under a load of 150 g and a temperature of 21°C. The softness is measured by vertically penetrating a specified cone into a test piece of the putty-like composition and measuring the penetration depth to the nearest 0.1 mm. Such softness can be adjusted, for example, by adjusting the content of the radical generator and / or inorganic compounds excluding the radical generator.

[0039] <Manufacturing method> The putty-like composition of the present embodiment can be obtained by mixing the above-described components together, and can also be obtained by kneading the components using a known kneading device such as a Banbury mixer, a kneader mixer, or a two-roll mill.

[0040] The putty-like composition of the present embodiment can be prepared by kneading the above components using a known kneading device such as a Banbury mixer, a kneader mixer, or a two-roll mill, and then molding the mixture using a conventional molding method such as press molding, roll molding, extrusion molding, calendar molding, etc. Alternatively, the putty-like composition may be molded to fit the shape of the substrate when attached to the substrate, such as a battery cell, without molding it in advance.

[0041] > [battery] Furthermore, a battery according to another embodiment of the present invention includes a member made of the putty-like composition (battery covering putty). A battery typically has at least one battery cell 3, to which the putty-like composition is attached as a member 1 such as a protective material or fireproof material (FIG. 1). The putty-like composition is typically attached to the surface of the battery cell so as to cover a part or the entire surface of the battery cell. The battery may have one battery cell or two or more battery cells. Note that FIG. 1 shows only one example, and the battery and battery cells may have various shapes.

[0042] In addition, examples of battery cells include secondary batteries such as lithium ion batteries, lithium ion polymer batteries, nickel-metal hydride batteries, lithium-sulfur batteries, nickel-cadmium batteries, nickel-iron batteries, nickel-zinc batteries, sodium-sulfur batteries, lead-acid batteries, and air batteries, but are not limited to these.

[0043] Batteries are used in, but not limited to, small electronic devices such as mobile phones and smart phones, laptops, automobiles, power tools, and the like. [Example]

[0044] The present invention will be specifically explained below with reference to examples and comparative examples, but these examples do not limit the present invention.

[0045] 1. Preparation of putty-like composition The components shown in the formulations in Tables 1 to 3 were kneaded for 10 minutes at 80°C using a 3 liter kneader mixer to obtain putty-like compositions for the Examples and Comparative Examples.

[0046] Details of the components in the table are as follows: (1) Liquid organic compounds Trimethyl phosphate: "TMP" manufactured by Daihachi Chemical Industry Co., Ltd., viscosity 2 mPa.s (25°C) Non-halogen condensed phosphate ester: ADEKA Corporation "ADEKA STAB FP-900L", viscosity 260-450 mPa.s (70°C) Liquid polyisoprene: Kuraray Co., Ltd. "LIR-30", viscosity 70 Pa.s (38°C)

[0047] (2) Radical generator Potassium bicarbonate: Hayashi Pure Chemical Industries, Ltd. Potassium carbonate: Hayashi Pure Chemical Industries, Ltd. Sodium bicarbonate: Hayashi Pure Chemical Industries, Ltd. Tripotassium citrate: manufactured by Fuso Chemical Co., Ltd.

[0048] <Inorganic compounds other than radical generators> (1) Metal hydroxide Aluminum hydroxide (Al hydroxide): "C-301N" manufactured by Sumitomo Chemical Co., Ltd. Calcium hydroxide (Ca hydroxide): "Slaked lime" manufactured by Maruai Lime Industry Co., Ltd. Magnesium hydroxide (Mg hydroxide): "KISMA5A" manufactured by Kyowa Chemical Substances Co., Ltd. (2) Inorganic compounds other than metal hydroxides Calcium carbonate (Ca carbonate): "TA-044" manufactured by Chichibu Lime Industry Co., Ltd.

[0049] 2. Evaluation The following measurements and evaluations were carried out on test pieces of the putty-like compositions of each Example and Comparative Example. The results are shown in Tables 1 to 3. As shown in the tables, all Examples were good in terms of conformability, adhesion, workability (non-adhesion), and fire extinguishing properties. On the other hand, all Comparative Examples were not good in at least one of these evaluation items.

[0050] <Conformability (softness)> The softness of the test piece was measured in accordance with JIS A5752 under a load of 150 g at a temperature of 21°C. A specified cone was inserted vertically into the test piece, and the penetration depth was measured in 0.1 mm increments (1 / 10 mm). Then, based on the penetration depth, the workability was judged according to the following criteria. ◎: 80 [1 / 10 mm] or more and less than 120 [1 / 10 mm] 〇: 65 [1 / 10 mm] or more and less than 80 [1 / 10 mm], 120 [1 / 10 mm] or more and less than 135 [1 / 10 mm] △: 50 [1 / 10 mm] or more and less than 65 [1 / 10 mm], 135 [1 / 10 mm] or more and less than 150 [1 / 10 mm] ×: Less than 50 [1 / 10 mm], 150 [1 / 10 mm] or more

[0051] <Tackiness> As shown in Figure 2, a 3g spherical test piece 5 was sandwiched between two aluminum plates 7 specified in JIS H4000 (A1050P) and compressed to a thickness of 5mm. After 1 minute, the test piece was peeled vertically at a peeling speed of 300mm / min, and the adhesive strength was measured based on the peak strength at the time of peeling. The adhesiveness was then evaluated according to the following criteria. ◎:2.5[N] or more ○: 1.5 [N] or more and less than 2.5 [N] △: 0.5 [N] or more and less than 1.5 [N] ×: Less than 0.5 [N]

[0052] <Workability (non-adhesive)> After measuring the mass of the latex rubber glove, the latex rubber glove was put on and a 100 g spherical test piece (putty) was gripped 10 times, after which the weight of the deposit on the glove was measured and the weight of the deposit was calculated according to the following formula. Then, based on the weight of the deposit, the non-adhesion was evaluated according to the following evaluation criteria. Weight of the deposit [g] = (weight of the glove after squeezing the putty 10 times) - (weight of the original glove) [Evaluation criteria] ◎: The weight of the deposit is less than 0.5 g. ○: The weight of the deposit is 0.5 [g] or more and less than 1.0 [g]. △: The weight of the deposit is 1.0 [g] or more and less than 1.5 [g]. ×: The weight of the deposit is 1.5 g or more.

[0053] <Fire extinguishing properties> A test specimen was created by placing a 2mm thick layer of test putty around a laminated lithium-ion battery used in smartphones, completely covering it. The test specimen was then placed on a hot plate set at 300°C, and the time from the release of fire to the extinguishing of the fire was evaluated. A shorter fire extinguishing time indicates better fire extinguishing performance. ◎: Extinguishing time is less than 3 seconds 〇: Extinguishing time is between 3 and 5 seconds △: Extinguishing time is between 5 and 10 seconds ×: Fire extinguishing time is 10 seconds or more

[0054] Table 1

[0055] Table 2

[0056] Table 3

Claims

1. A battery covering putty containing 10 to 400 parts by mass of a radical generator relative to 100 parts by mass of a liquid organic compound, the liquid organic compound comprises at least one selected from a phosphate ester organic compound and a liquid polyisoprene; the radical generator includes at least one selected from a potassium salt-based radical generator and a sodium salt-based radical generator, A battery covering putty in which a 3 g spherical test piece made of the battery covering putty is sandwiched between two aluminum plates specified in JIS H4000 (A1050P), compressed to a thickness of 5 mm, and after 1 minute, vertically peeled at a peeling rate of 300 mm / min, and the peak strength at the time of peeling is 0.5 N or more.

2. 2. The battery covering putty according to claim 1, comprising 50 to 400 parts by mass of an inorganic compound excluding the radical generator.

3. 3. The battery covering putty of claim 2, wherein the inorganic compound comprises a metal hydroxide.

4. 4. The battery coating putty of claim 3, wherein the metal hydroxide comprises aluminum hydroxide.

5. the phosphate ester-based organic compound is at least one selected from trimethyl phosphate, triethyl phosphate, triphenyl phosphate, tricresyl phosphate, trixylenyl phosphate, cresyl diphenyl phosphate, cresyl di-2,6-xylenyl phosphate, tri(chloropropyl)phosphate, tris(tribromoneopentyl)phosphate, xylenyl diphenyl phosphate, 2-ethylhexyl diphenyl phosphate, dimethyl methyl phosphate, resorcinol bis(diphenyl)phosphate, bisphenol A bis(diphenyl)phosphate, bisphenol A bis(dicresyl)phosphate, resorcinol(di-2,6-xylenyl)phosphate, tris(chloroethyl)phosphate, tris(chloropropyl)phosphate, tris(dichloropropyl)phosphate, tris(tribromopropyl)phosphate, diethyl-N,N-bis(2-hydroxyethyl)aminomethyl phosphate, and a non-halogen condensed phosphate ester; the potassium salt radical generator is one or more selected from potassium acetate, potassium propionate, monopotassium citrate, dipotassium citrate, tripotassium citrate, monopotassium trihydrogen ethylenediaminetetraacetate, dipotassium dihydrogen ethylenediaminetetraacetate, tripotassium monohydrogen ethylenediaminetetraacetate, tetrapotassium ethylenediaminetetraacetate, potassium hydrogen phthalate, dipotassium phthalate, potassium hydrogen oxalate, dipotassium oxalate, potassium hydrogen carbonate, and potassium carbonate; The sodium salt radical generator is one or more selected from sodium acetate, sodium citrate, and sodium bicarbonate. The battery covering putty according to claim 1 or 2.

6. The phosphate ester organic compound is at least one selected from the group consisting of trimethyl phosphate and non-halogen condensed phosphate esters, the potassium salt radical generator is one or more selected from tripotassium citrate, potassium bicarbonate, and potassium carbonate; The sodium salt radical generator is one or more selected from sodium bicarbonate. The battery covering putty according to claim 1 or 2.

7. 3. The battery covering putty according to claim 1, wherein the liquid organic compound comprises a phosphate ester-based organic compound.

8. 3. The battery covering putty according to claim 1, wherein the radical generator comprises a carbonate.

9. A battery comprising a member formed from the battery covering putty according to claim 1 or 2.

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