This application claims the benefit of priority based on the October 31, 2017 Korea Patent Application No. 2017-0143690 years, and all information disclosed in the literature of the Korea patent application are included as part of the specification. [2] The present invention relates to an electrochemical device comprising a separator and this without the separator substrate, but does not contain a polyolefin substrate to be used in particular membrane base material, inorganic particles, comprising a binder, and a cross-linking agent for bonding between the inorganic particles It relates to a separator for an electrochemical device. BACKGROUND [3] There is continuing research on nuclear power, various power generation technologies such as solar, wind and tidal. Research on batteries for use in the production of energy more efficiently has also been steady progress. [4] The lithium secondary battery is increasing also in demand in proportion to the rapid growth of mobile device markets. Used as a power source such as an electric vehicle (EV) and hybrid electric vehicles (HEV) region also has expanded. [5] The lithium secondary battery is one is equipped with an electrode assembly in the battery case, the charge and discharge of cathode / separator / anode structure. Positive and negative electrodes is coated with a slurry containing an electrode active material, such as on one side or both sides of a metal collector and dried and rolled. [6] Membrane is one of the most important factors in determining the performance and life of the rechargeable battery. While electrically insulating the positive electrode and the negative electrode electrolytic solution is ion permeability must be high to pass. It is also required stability in mechanical strength and high temperature. [7] Conventional separator composed of a separator base material and the inorganic material coating layer occurred is partially bubbled or wrinkled as weak adhesive strength at the interface with the electrode. A polyolefin that is used as a separator base material has a problem in that the melting at a high temperature. [8] To eliminate the root cause, and form a new membrane into the inorganic coating layer is not a polyolefin separator substrate. The new membrane was easily generate an internal short circuit is significantly reduced insulation. Due to the low tensile strength, low elongation to the membrane is easily broken. This easily occurs that the fine short circuit generated in the electrode assembly. [9] Patent Document 1 discloses a separation membrane composed of microporous polymer layer composed of an organic-modified aluminum boehmite, and organic polymer. It does not propose specific solutions to improve their strength. [10] Non-Patent Document 1 has mentioned the cross-linking of the PVdF-HFP / PEGDMA (polyethyleneglycol dimethacrylate) as a method of increasing the strength of the new membrane. Non-Patent Document 1 is not applied to the material in the membrane, and is applied only to the polymer electrolyte. [11] Non-Patent Document 2 discloses a boehmite nanoparticles and polyvinylidene fluoride polymer, the lithium secondary battery separator. And it noted that not adequate stress is applied to the high cell assembly process. [12] Non-Patent Document 3 discloses a porous ceramic film which is based on magnesium aluminate is flexible as a separator of a lithium secondary battery in the thermal stability. There does not disclose a specific method for improving the strength. [13] Thus, a high reliability for a high-temperature environment, while gateu superior insulation properties, is improved dimensional stability has not been proposed a technique for the separation membrane is not a polyolefin substrate that can solve the problem. [14] - prior art documents [15] Patent Document 1: US Patent No. 8883354 No. [16] (비특허문헌 1) Thermal shundown behavior of PVdF-HFP based polymer electrolytes comprising heat sensitive cross linkable oligomers, J. power Sources 144, 2005 [17] (비특허문헌 2) Boehmite-based ceramic separator for lithium-ion batteries, Journal of Applied Electrochemisrty, 2016, 69 [18] (비특허문헌 3) Thin, flexible and thermally stable ceramic membranes as separator for lithium-ion batteries, Journal of Membrane Science, 2014, 103 Detailed Description of the Invention SUMMARY [19] The invention has for its object to provide a membrane technique and the technique capable of preventing a short circuit occurs due to damage of the applied membrane. More specifically, the present invention while having a degree of insulating conventional separation membranes, to provide a separation membrane with improved tensile strength and elongation. Problem solving means [20] Present invention to achieve the above object, does not include the polyolefin based, provides i) inorganic particles, ii) for an improved electrochemical device which membrane comprises a binder for the bonding between the inorganic particles. [21] Separation membrane according to the present invention is a separator for an electrochemical device to secure the electrical insulation between the positive electrode and the negative electrode. [22] The improved separator can be made of the compounds that contain does not contain polyolefin-based, cross-linking agent further i) inorganic particles, ii) a binder, and iii) for a bond with the inorganic particles. [23] Compared to a separation membrane of the present invention with a conventional separator, the structure without the separator substrate of polyolefin. Conventional membrane is a coated membrane substrate of the inorganic layer is a polyolefin, and composed of an inorganic substance and a binder on at least one surface in addition to it. The present invention is a separator composed entirely of material that there is no separation membrane base material constituting the rest of the inorganic layer. [24] A membrane similar to the present invention, a separation membrane that is only composed of the inorganic layer. Such conventional separator is lower the overall strength of the separator is omitted since the polyolefin separator substrate. To create a low-intensity separator of the electrode assembly, a separator having a high possibility to be damaged to be short-circuited. [25] The present invention uses a polymer having a linear polymer, or ii) 2 or more functional groups having a different number of i) capable of forming a three-dimensional network structure as the crosslinking agent reacts at a specific temperature of the separation membrane. Depending on the nature of the density of the network structure, higher dimensional stability and enhanced physical properties related to stiffness and can provide the membrane resistance is reduced. [26] When injecting a reaction initiator is a three-dimensional network structure is formed more strongly bars which, while maintaining dimensional stability improving the tensile strength of the membrane itself, reduces the risk of damage to the membrane. [27] The present invention is a separator in the manufacture of an electrochemical device can be significantly reduced due to a minute short-circuit breakage. In addition, it is possible to prevent the decrease in rate of dimensional change of the electrolyte caused by the wrinkles swelling (swelling) during electrolyte impregnation. [28] a) inorganic particles [29] In the separation membrane of the present invention the inorganic particles, among the inorganic particles and enables the formation of an empty space serves as a kind of spacers (spacer) that can maintain the role and physical forms to form the micropores. Inorganic particles used in the separation membrane is generally a high temperature may be above 200 ℃ does not change the physical properties. [30] These inorganic particles, just electrochemically stable is not particularly limited. Inorganic particles that can be used in the present invention so long as the battery of the operating voltage range (for example, Li / Li + reference to 0 ~ 5V) oxidation and / or reduction reactions do not occur in the to be applied is not particularly limited. When using the inorganic particles a high electrolyte ion conductivity, it is possible to improve performance in an electrochemical device, preferably a high electrolyte capable of ion conductivity. When the inorganic particles having a high density, not only a difficulty in dispersion during membrane formation, but also the problem of weight increase during battery manufacture. Therefore, it is smaller density is preferred. If the high dielectric constant inorganic material, it is possible to contribute to the electrolyte liquid electrolyte salt, such as increased dissociation of lithium salts to increase the ionic conductivity of the electrolyte. [31] Because of the reason as described above, wherein the inorganic particles have a dielectric constant of 1 or more, preferably 10 or more high dielectric constant inorganic particles, piezoelectric inorganic particles, the alumina hydrate having the inorganic particles, the lithium ion conductivity with (piezoelectricity) thereof It may be a mixture of two or more. [32] Examples of the inorganic particles is greater than or equal to the dielectric constant is 1, SrTiO 3 , SnO 2 , CeO 2 , MgO, NiO, CaO, ZnO, ZrO 2 , Y 2 O 3 , Al 2 O 3 , TiO 2 , SiC, or a mixture thereof this however, it is not limited thereto. [33] The piezoelectricity (piezoelectricity) inorganic particles refers to a material having the physical properties of the electrical leads by the internal structure changes when the atmospheric pressure is a non-conductor, or a predetermined pressure is applied. The inorganic particles have a dielectric constant having a high dielectric constant value of 100 or more. In addition, applying a constant pressure to be an electric charge occurs when tension or compression. A surface in an amount, each opposite end being negatively charged, a potential difference occurs between both sides. [34] When using the inorganic particles having the characteristics as described above, Local crush, if the internal short circuit between electrodes caused by an external shock, such as Nail due to the inorganic particles coated on the separator, as well as not in the positive electrode and the negative electrode in direct contact with , an attempt can be made to be due to the piezoelectricity of the inorganic particles occurs within the particles and the potential difference this electron transfer between the electrodes, that is, by the flow of the fine yirueojim current, voltage reduction of the battery, and a gradual increase stability resulting. [35] Examples of the inorganic particles having the piezoelectricity is BaTiO 3 , Pb (Zr, Ti) O 3 (PZT), Pb 1-x La x Zr 1-y Ti y O 3 (PLZT), Pb (Mg 1/3 Nb 2 / 3 ) O 3 -PbTiO 3 (PMN-PT) hafnia (HfO 2 ), or a mixture thereof, but is not limited to this. [36] Inorganic particles having the lithium ion conductivity is, but containing a lithium element nor not store lithium refers to inorganic particles which has a function for moving the lithium ions. Inorganic particles having lithium ion conductivity is enhanced because it can be due to the type of defect (defect) existing inside the grain structure transfer and move lithium ions,-cell Li-ion conductivity, thereby to improve the cell performance can. [37] Examples of the inorganic particles having the lithium ion conductivity include lithium phosphate (Li 3 PO 4 ), lithium titanium phosphate (Li x Ti y (PO 4 ) 3 , 0 [116] The content of the solid component mixed in a weight ratio of 2: as inorganic particles, boehmite (AlO (OH)), a polyvinylidene fluoride (PVdF), and a cross-linking agent as a binder, polyethylene glycol dimethacrylate (PEGDMA) is 78: 20 based on the total weight of the slurry to prepare a slurry such that 18% by weight. [117] After the concrete is added to, the boehmite (AlO (OH)) 28.08g, PVdF 7.2g and 0.72g PEGDMA in acetone 164g, to prepare a slurry. After molding the slurry to form a separator to prepare a separation membrane to react at 150 ℃ 30 minutes. In the subsequent cross-linking reaction is completed at room temperature, thereby completing the separation membrane and then proceed to the further drying. [118] [119] Examples of the initiator in the slurry of 1 2,2'-azobis (isobutyronitrile) was added, except that 0.0072g preparing a membrane by the same method as in Example 1. [120] [121] A crosslinking agent in polyethylene glycol does not include methacrylate (PEGDMA) boehmite (AlO (OH)) and polyvinylidene fluoride (PVdF) is 78: and Example except that using a solid mixed in a ratio of 22 a separation membrane was prepared by the same method as the first. [122] [123] Measuring physical properties according to the presence or absence of a crosslinking agent and an initiator [124] The Examples 1 and 2 and Comparative Example 1 Isolated volume by using the prepared membrane at a resistance (volumetric resistivity), was measured for tensile strength (tensile strength), and dimensional change (swelling), and the results shown in Table 1 and Fig. It is shown in Fig. [125] [126] TABLE 1 Example 1 Example 2 Comparative Example 1 Volume Insulation resistance (GΩ · cm) (100V, 3S) 4.2 270,000 11 Tensile strength (kgf / cm 2 ) 138 149 135 Dimensional change rate (%) 3 3 4 [127] Table 1, and 1, whereas in the case of Example 1 without addition of the initiator is low in insulation resistance volume 4.2GΩ · cm, for embodiment the addition of initiator Example 2 Comparative Example 1 does not contain a cross-linking agent and to markedly increased when compared. If the lower the volume, the insulation resistance is a micro-current is flowing state, while, when the volume of the insulation resistance is high, so that current flows insulation is secured state is not sufficiently isolated. Therefore, the addition of the initiator has to find out the insulating significantly improved. If the initiator is not added, the degree of crosslinking is improved compared with a case that is supposed to have been the amount of the unreacted cross-linking agent reduces, the crosslinking agent is the insulation resistance when the initiator is added to increase because the rate of growth of a polymer reaction. [128] In addition, three-dimensional in the case of Example 1 and Example 2 containing a cross-linking agent that varies with network structure improves the strength of the membrane to increase the tensile strength, dimensional change is reduced to increase the dimensional stability. [129] That is, in the case of a membrane prepared by adding a crosslinking agent such as PEGDMA, it can be seen that the increase in tensile strength and decrease the dimensional change by being through the process of drying at 150 ℃, a three-dimensional network structure of the crosslinked form. [130] Further, if carried out did not add an initiator compared to the second embodiment have added in Example 1, and an initiator, the second embodiment is a bar to further increase the tensile strength, the initiator can know that the effective crosslinking for a three-dimensional network structure formed have. [131] [132] Except for changing the reaction temperature from 150 ℃ to 130 ℃ and the separation membrane was prepared in the same manner as in Example 1. [133] [134] Except for the point, the reaction temperature of the slurry to 100 ℃ and the separation membrane was prepared in the same manner as in Example 1. [135] [136] Except for the point, the reaction temperature of the slurry to 170 ℃ and the separation membrane was prepared in the same manner as in Example 1. [137] [138] Measuring physical properties according to the reaction temperature of the initiator [139] Example 1, Example 3, Comparative Example 2, and compared using the prepared membrane from Example 3 were measured by volume insulation resistance (volumetric resistivity), tensile strength (tensile strength) and the rate of dimensional change (swelling), and the results shown in Table 2 and FIG. [140] TABLE 2 Comparative Example 2 (100 ℃) Example 3 (130 ℃) Example 1 (150 ℃) Comparative Example 3 (170 ℃) Volume Insulation resistance (GΩ · cm) (100V, 3S) 1.20 3.43 5.91 5.50 Tensile strength (kgf / cm 2 ) 97 118 136 132 Dimensional change rate (%) 3 2 2 2 [141] Referring to Table 2 and Figure 2, the physical properties of the embodiment the cross-linking temperature of 150 ℃ Example 1 is increased as compared with the third embodiment the cross-linking temperature of 130 ℃, vol insulation resistance and tensile strength. In addition, dimensional change may be seen that the same. [142] Further, when the cross-linking temperature compare 100 ℃ of Comparative Example 2 and Example 3 the cross-linking temperature of 130 ℃, Comparative Example 2 was determined to be all of the volume of the insulation resistance and the tensile strength and the dimensional change in the disadvantage. [143] As compared to the embodiment in the case of comparison the cross-linking temperature of 170 ℃ Example 3, Example 1, dimensional change was measured by keeping the one, and the volume reduced insulation resistance and tensile strength of the same value. [144] Thus, the cross-linking agent of the present application is to check that there can be prepared a separator having a property that the crosslinking reaction is proceeding briskly desired at a temperature of 120 ℃ to 160 ℃, when the cross-linking temperature of 150 ℃ physical properties is best It is evaluated as being capable of producing a separation membrane. [145] [146] The membrane by the same method as in the content ratio of the binder with 15% by weight to 20% by weight based on the total weight of solids, for changing the cross-linking agent in 2% by weight to 7% by weight, except in Example 1 was prepared in Example 1 . [147] [148] The membrane by the same method as in the content ratio of the binder to 11% by weight to 20% by weight based on the total weight of solids, for changing the cross-linking agent in 2% by weight to 11% by weight, except in Example 1 was prepared in Example 1 . [149] [150] The membrane by the same method as in the content ratio of the binder to 7% by weight to 20% by weight based on the total weight of solids, for changing the cross-linking agent in 2% by weight to 15% by weight, except in Example 1 was prepared in Example 1 . [151] [152] Measuring physical properties according to the content of the crosslinking agent [153] Example 1, Example 4, Example 5 and Comparative using a separation membrane prepared in Example 4 was measured for the electrical resistance (electrical resistance), and elongation (elongation), the results are shown in Table 3 below. [154] TABLE 3 Example 1 (PEGDMA 2wt%) Example 4 (PEGDMA 7wt%) Example 5 (PEGDMA 11wt%) Comparative Example 4 (PEGDMA 15wt%) Tensile strength kgf / cm 2 ) 136 88 79 10 Elongation (%) 46 41 15 3 [155] Referring to Table 3, the crosslinking agent is in Example 1, 4 and 5 with less than 15 wt% was determined to be the all, the tensile strength and elongation compared to the Comparative Example 4 The cross-linking agent comprises 15 wt% increase. [156] That is, when the crosslinking agent is added in excess, it can be seen that the tensile strength becomes significantly weak. [157] Accordingly, the present invention has been confirmed that only when the amount of the crosslinking agent is increased within a certain range, a constant tensile strength and elongation is maintained to obtain a separation membrane capable of cell assembly. [158] [159] The functional group in place of an embodiment of polyethylene glycol dimethacrylate (PEGDMA) a crosslinking agent in Example 2 using the compound 6 of the individual above-mentioned formula (I), the initiator 2,2'-azobis place of 2,2 (iso butyronitrile) '- azobis was used, except that the (2,4-dimethylvaleronitrile) to prepare a membrane in the same manner as in example 2. [160] [161] The functional group in place of an embodiment of polyethylene glycol dimethacrylate (PEGDMA) a crosslinking agent in Example 2 using a 10 compound of the general formula (2) individual, instead of initiator, 2,2'-azobis 2,2 (iso butyronitrile) '- azobis was used, except that the (2,4-dimethylvaleronitrile) to prepare a membrane in the same manner as in example 2. [162] [163] Measuring physical properties according to the content of the functional group of the crosslinking agent and the crosslinking agent can [164] Example 2, Example 7, carried out using a separation membrane prepared in Example 8 were measured by volume insulation resistance, electrical resistance, tensile strength, and rate of change value, the results are shown in Table 4 below. [165] TABLE 4 Functional cross-linking agent can Volume insulation resistance (TΩ · cm, 100V, 3S, 6 * 6cm) Electrical Resistance (Ω) Tensile strength (kgf / cm 2 ) Dimensional change rate (%) Example 2 (a cross-linking agent 2wt%) Two functional groups 21.5 1.96 147 3 Example 7 (a cross-linking agent 2wt%) 6 functional 54 1.76 170 2.5 Example 8 (a cross-linking agent 2wt%) 10 functional 53.4 1.98 179 2.3 [166] Referring to Table 4, exemplary number of embodiments with the functional group number of 6 individual cross-linking agent compared to the membrane of Example 2 containing a functional group number of 2, the cross-linking agent in Example 7 and the functional group with the 10 individual cross-linking agent for example, 8 increase the volume insulation resistance It appears to. This is expected due to more cross-linking has been progress. [167] Analysis of the change in the tensile strength, it appears that the tensile strength decreased with increase in the number of functional groups. [168] Dimensional change is, if the content of crosslinking agent are the same, appears to be a tendency dimensional stability increased with increasing the number of functional groups. [169] Thus, the separation membrane according to the present invention does not contain a polyolefin substrate, including a cross-linking agent as a component of the membrane and, optionally, further comprise an initiator, and the crosslinking agent is a bar, the cross-linking agent and initiator having two or more to 10 functional groups insulation is secured by zero volume insulation resistance is significantly increased due to an improvement in dimensional stability. [170] Those of ordinary skill in the art that the present invention it will be possible to perform a variety of applications and modifications within the scope of the present invention in the accompanying claims. Industrial Applicability [171] As described above, the separator for an electrochemical device according to the present invention does not contain a polyolefin substrate that is used as a separator base material unlike the conventional separation membrane, inorganic particles, a binder, and a bar, a separator substrate made of a material containing a cross-linking agent there is insulation of the separator can be significantly improved as can overcome the lower thermal stability problem, the cross-linking agent is a compound forming a three-dimensional network structure. [172] In addition, it is possible to prevent the cross-linking agent to increase the tensile strength of the membrane itself as the deformation in the three-dimensional network structure from the linear structure by lowering the likelihood of damage to the membrane, a short circuit in the battery. In addition, increasing the number of functional groups of the crosslinking agent improves the dimensional stability of the membrane can be prevented from being wrinkled introduced or modified in the separator. Claims [Claim 1] A separator for an electrochemical device to secure the electrical insulation between the positive and negative electrodes, the separator does not contain any polyolefin based, inorganic particles, an electrochemical device separator comprising a binder, and a cross-linking agent for bonding between the inorganic particles. [Claim 2] The method of claim 1, wherein the inorganic particles have a dielectric constant of 1 or more high dielectric constant inorganic particles, a piezoelectric (piezoelectricity) inorganic particles, inorganic particles, alumina hydrate or the electrochemical device thereof a mixture of two or more with lithium ion conductivity with membrane for. [Claim 3] The method of claim 1, wherein the binder is polyvinylidene fluoride, polyvinylidene fluoride-hexafluoropropylene, polyvinylidene fluoride-trichlorethylene, polyvinylidene fluoride-chlorotrifluoroethylene triple ethylene to, polymethyl acrylonitrile, methacrylate, polyacrylonitrile, polyvinylpyrrolidone, polyvinyl acetate, ethylene vinyl acetate copolymers, polyethylene oxide, cellulose acetate, cellulose acetate butyrate, cellulose acetate propionate, cyanoethyl pullulan, cyano acetate, polyvinyl alcohol, cyanoethyl cellulose, cyanoethyl sucrose, pullulan, carboxymethyl cellulose, styrene-butadiene-acrylonitrile copolymer, ethylene-propylene-diene monomer (EPDM), sulfonated EPDM, styrene butylene rubber (SBR ), it is selected from the group consisting of fluorine rubber and polyimide At least one member for an electrochemical device separator. [Claim 4] The method of claim 1 wherein the crosslinking agent is a separator for an electrochemical device the polymer material comprising from 2 to 10 functional groups. [Claim 5] The method of claim 4, wherein the crosslinking agent is a polyethylene glycol dimethacrylate or, or to the electrochemical device, a separator for polymer materials represented by the formula 1-2. Formula 1 where x is an integer from 1 to 100. In Formula 1, y is an integer from 0 to 30, z is an integer of 1 to 1,000. A weight average molecular weight of the formula (I) is 1,000 to 100,000 and the p value is a variable that depends on. Formula 2 In Formula 2, a, c is an integer from 1 to 30, b is an integer from 1 to 1000. A weight average molecular weight of the formula (II) is 1,000 to 100,000, and d values is a variable that depends on. [Claim 6] The method of claim 1, wherein the reaction temperature is 120 to 160 ℃ ℃ The electrochemical device of the crosslinking agent for the separation membrane. [Claim 7] The method of claim 1, wherein the separator is a separator for an electrochemical device further comprising an initiator for the crosslinking agent. [Claim 8] The method of claim 7, wherein the reaction initiator is azo (azo) compounds, or peroxides (peroxide) based compound in an electrochemical device for the separation membrane. [Claim 9] The method of claim 8, wherein the azo compounds (isobutyronitrile), 2,2'-azobis (2-methyl butyronitrile), 2,2'-azobis, 2,2'-azobis (2 , acrylonitrile, 4-dimethylvaleronitrile) and 2,2'-azobis (4-methoxy-2,4 least an electrochemical device for the separation membrane is one or more selected from acrylonitrile-dimethylvaleronitrile). [Claim 10] 10. The method of claim 9, wherein the azo compound is 2,2'-azobis (isobutyronitrile) or 2,2'-azobis The electrochemical device for separating membrane (2,4-dimethylvaleronitrile). [Claim 11] 9. The method of claim 8 wherein the peroxide-based compound-tetramethylbutyl peroxyneodecanoate, bis (4-butylcyclohexyl) peroxydicarbonate, di (2-ethylhexyl) peroxy carbonate, butylperoxy neo having decanoate, dipropyl peroxy dicarbonate, diisopropyl peroxy dicarbonate, diethoxy ethyl peroxy dicarbonate, diethoxy-hexylperoxy dicarbonate, hexyl peroxy dicarbonate, dimethoxy butyl peroxy dicarbonate, bis ( 3-methoxy-3-methoxybutyl) peroxy dicarbonate, di-butylperoxy dicarbonate, di-cetyl (dicetyl) peroxy dicarbonate, and distill (dimyristyl advance) peroxy dicarbonate, 1,1,3, 3-tetramethylbutyl peroxypivalate (peroxypivalate), hexyl peroxypivalate, butyl peroxypivalate, trimethyl hexanoyl peroxide, dimethyl hydroxybutyl peroxy neo to Cano A. Agent, amyl peroxyneodecanoate, Atofina, butyl peroxyneodecanoate, t- butylperoxy neo-heptanoate, amyl peroxypivalate, t- butyl peroxypivalate, t- amyl peroxy- 2-ethylhexanoate, lauryl peroxide, di-lauroyl (dilauroyl) peroxide, dideoxy Kano one peroxide, benzoyl peroxide and dibenzoyl separator for an electrochemical device which is at least one selected from peroxide. [Claim 12] The method of claim 1, wherein the separator for an electrochemical device which includes the content of the crosslinking agent in the membrane, based on the total weight of the solid content to 15% by weight or less than 0% by weight. [Claim 13] The electrochemical device comprising the separator for an electrochemical device according to any one of items 1 to 12.