The present invention relates to a method for manufacturing a battery module and its. [Background Art] Recently, a secondary battery is dischargeable layer is widely used as an energy source for wireless mobile devices. Further, the secondary battery has received attention in conventional gasoline vehicle, it is presented as a way to solve the atmospheric pollution of a circle such as a diesel vehicle energy source such as electric vehicles, hybrid electric vehicles using fossil fuel also as. Therefore, the types of applications that use the secondary battery is being very angry due to various advantages of the secondary battery, the future is expected to rechargeable batteries applied to many sectors and products than now. The secondary battery has the amount of the lithium followed batteries, lithium ion polymer batteries, and be classified as a lithium polymer battery or the like, was that leakage potential of the electrolyte enemy of, polymer battery is easy to manufacture a lithium followed, depending on the configuration of the electrode and the electrolyte It is increasing. In general, the secondary battery is a pouch in accordance with the shape of the battery case, the electrode assembly is a cylindrical battery cells and a prismatic battery cell incorporated in the metallic can of cylindrical shape or square shape, the electrode assembly incorporated in a pouch type case of aluminum laminate sheet It is classified as a type battery cells. Of these, a cylindrical battery leak is prismatic and pouch type batteries leak than have a large capacitance, and also used in the form of a single cell according to the type of external device is used, electrically connected to a plurality of battery cells to the problem of output and capacity also used in the form of a battery or battery pack modeul. In this regard, Figure 1, there is shown a schematic view of a battery module made up of a cylindrical battery leakage. 1, the battery modeul 10 is a cylindrical battery cells 1 a side array of cell arrangement, the connecting member 3 and the cell arrangement and the connection that is connected to the battery cells (1) of the cell arrangement includes a cell frame (2) for fixing the member (3). Connecting member 3, as a plate made of a metallic material of electrically conductive, and is connected electrically and mechanically to the electrode terminals of the battery cell 1, bayida bus mutually adjacent electrically connected to the battery cells (1). Metal adult connecting member and the electrode terminals of the battery cell is generally connected by welding, at the welding system increases, and handling can be easily and note the changes that for the metal structure to minimize the deformation of the electrode terminal, the welding the temperature is relatively stable resistance welding is widely used for the degradation of the battery cell decreases relatively. Thus, there is also shown to photography and schematic view of the junction forms between the electrode terminals of the connection member and the battery cell using the resistance welding. 2 to FIG. Referring to Figure 2 through 4, the resistance welding is a positive, negative adult pair of welding electrodes (11, 12) to the electrode terminal of the welding location (W) of the connection member (3a) workpiece cells (la) localized melting in a state in which the pressure (111), the interconnect member (3a) and an electrode terminal by passing the active current (C1) via a 111 wherein the connecting member (3a) by resistance heat generated, which is in close contact to a method of bonding a derived. However, the above process, there is generated also a reactive current (C2) does not take part in the welding, the reactive current is, with the remaining portion electrode terminal 111 of the connection member (3a) is not pressed by the electrode (11, 12) by excluding a high resistance electrode terminal 111, and through only a relatively low resistance connection member (3a) is a non-power-current energization because of the high surface resistance. In contrast, the weld area (W) is pressed by the welding electrode (11, 12) is so tightly adhered to the electrode terminal, is that this current is active current (C1) flows through. If the effective current defects, such as (C1) and reactive current (C2) and when energized is concentrated on the weld area (W) of the connection members (3a), the over-current is formed in the weld area (W) fracture, breaking the weld quality defects this may be caused. Accordingly, as shown in Figs. 2 and 3, there is a way that the reactive power (C2) bypassing along the slit (30) is used to form the slits 30 in the connecting member (3a). On the other hand, to the connecting member and the joining notification between the electrode terminal, as shown in Figure 4 Connection members (3b) each, twice or more the resistance welding is often performed sequentially. However, even if adding the resistance welding to the connection member (3b) carried out as in 4 (b), reactive power (C2) is also already slit as energized by a welding portion (W) (30,) the obsolete, and there is a problem that as the effective current (C1) and reactive current (C2) is concentrated to adjacent weld by it whereby the connecting member (3b) to the over-current breaking or extremely reduced weld quality according. For these problems, there is shown a real picture in Fig. In particular, in the case of connecting members made of a metallic material such as a low resistance due to high purity copper with high electrical conductivity, the above-described problem is frequent is this reason, two or more resistance welding situation is very demanding. Therefore, there is a need, the need for which can fundamentally solve the problems described above. - details of the invention; [SUMMARY] An object of the present invention is to solve the technical problem, which has been requested from the problems, and of the prior art. Specifically, in the present object is achieved by two or more resistance welding of the invention, as cross-bonded in the form of an electrode terminal and a connection member of the battery leak desired and quality, the cell base that the bonding form in the external shock and vibration remains stable to provide. A further object of the present invention is to provide a manufacturing method of the battery stem / [Technical Solution] Cell mode according to the present invention for achieving this end are, the electrode terminals located at both ends of the battery cells are mounted in a cell frame, with the arrangement of a plurality of battery cells are laterally positioned to face the same direction, at least one of which The battery cell arrangement; And at the upper and / or lower end of the battery cell arrangement, comprising a plurality of connecting members that are bonded to the electrode terminals of each battery cell of the battery cell arrangement, and at least three in the connection member, they are spaced apart from each other species and in the direction of the slit and the longitudinal slits in the lateral slit crossing the at least one characterized in that the metal plate which is punched in. The advantage of a battery module according to the present invention, the connecting member is divided into a plurality of points in the transverse direction of the slit for connecting three or more longitudinal slits and their slit yirumyeonseo the bonding to the electrode terminals at the respective points, the electrode the terminal and the connecting member is in the form forms a stable bond to each other. Specifically, the connecting member is at least two times the resistance welding made to the respective branch state, may be a multi-bonded to the electrode terminal, so that the battery module of the present invention including the connecting member is a multi-junction structure based to, it may be a vibration, even though external force such as an electric connection structure between the battery cell and the connecting member stable shock. Specific structure of the connection member for achieving the above advantage will be described in detail below through a non-limiting example of the present invention. In one specific example, the connection member may include two or more resistance weld which is set each between the longitudinal slits of the adjacent longitudinal slits each other; The resistance weld, is divided into a second welding portion of the basis of the lateral slits to the upper direction and the lower direction, and weld zone 1; The connection member may be a structure in which are double bonded to each resistance welded to the electrode terminals of the battery cells more than one resistance welded portion is set in it. That is, the connection member, it may includes a point in two or more resistance welded portion defined by the slits, these resistance welding portion have been joined to the electrode terminals of the battery leaks form the multi-junction, an external force such as vibration or cheunggyeok the likely destruction, breaking and deformation of the joint region is less about. It should also be noted from the first weld point in the current carrying path through the second welding part can be bypassed along the longitudinal slit. For example, when the resistance welding performed sequentially in two or more resistance weld zone, a reactive current is bypassed to the slit in the longitudinal direction that is adjacent to said resistance welding portion. This is because the interfacial resistance of the electrode terminal connecting member on the remaining portions except for the resistance welding portion relatively large as described earlier. Bypass energization of this reactive current is distributed from the actual effective current of the welding location of the resistance welding portion and its periphery it means that the current flow. For this reason can be prevented from being over-current is energized to the periphery deulwa the resistance welds may be as a result the battery mode with no bonding defect between the connecting member and the electrode terminal to implement due to the overcurrent. The metal plate in the present invention, if the material of the electroconductive not particularly limited, but a low electrical resistance can be made of a highly conductive material, particularly zinc as to second material with it, and containing copper as a first material : may be formed of nickel, aluminum, platinum, an alloy of at least one metal selected from the group consisting of lead, tin and stainless steel. According to verify that the inventors of the present invention, the first material, when the content of copper is 90% by weight less than, since the connecting member is relatively high of the resistance, the heat generation is not desired in the joint portion of the electrode terminals and the connecting member causes is not desirable, the above to the content of the first material is copper 99 wt % if it exceeds, the bonding forms due to energization, a desired low-bars, a large reactive current relatively during the resistance welding to the connection member resistance relative implementation was found to be difficult. In general, resistance welding, and reactive current is inversely proportional to the resistance of the workpiece, as the reactive power increases the effective current is reduced, because the bonding strength decreases. Therefore, the above-described alloy ratio is understandable that particularly important to implement the advantages of the battery module according to the present invention. The alloy content of the first material and the second material in the present invention, the ratio by weight of 90:10 to 70: may be 30, or 97: 3 to 75: may be 25, or, 98: 2 to 80 : may 20th. Alloy of the first material and the second material may be, for example, copper, an alloy comprising nickel and tin, or copper, alloys containing tin, or copper, alloys containing zinc. Copper, an alloy comprising nickel and tin, may comprise 98% by weight copper, 1% nickel and 1% by weight tin. Alloys comprising copper and tin, copper 97 may comprise a% by weight and 3% by weight tin. ' Alloy containing copper and zinc, copper 90 parts by weight 0 / 0 may include zinc and 10% by weight. In one specific example, the longitudinal slit has a first slit which is connected to one end of the transverse slit; A second slit that is connected to the other end of said transverse slit; And it can include 3 to the slit crossing the slit in a lateral direction between the first slit and the second slit. At this time, between the third slits may be it the transverse slit perpendicular to the to the may be a first resistance welded portion formed between the first slit and the third slit and the second slit and the third slit a second and a resistance welded portion can be formed, the first resistance welds, can be divided into the first welding part and to second welding portion so as to sandwich the lateral slit, the shop second resistance weld also between the transverse slits it can be divided into a first weld and the second weld placed on. In this configuration welding portion of the first resistance welded portion and the second resistance welds are therefore substantially parallel to the set on the basis of the lateral slit, for example, either by from one of the resistance welds facilitate the welding electrode moves to the other resistance welding portion there are advantages to an automated process. In some cases, to the third slits may be it an angle of 20 degrees to 160 degrees relative to the transverse slit. Since such a structure in the shop may be formed As the first resistance welded portion and the second resistance welded portion above said third slit on the transverse slits have the form of a scan line, a current carrying path of the reactive current to be diverted to the third slit It can be relatively extended, with And the first slit, the second slit and third slit are preferably made of a small size as possible in the present invention, which take into account the reduced area of ​​the connecting member in contact with the electrode terminals of the battery leak by means of said slit and a resistance increase resulting because. Similarly, since, even if adding the number of slits, the contact area of ​​the connecting member to the electrode terminal means is reduced, it is not desirable to add the number of the longitudinal slits. In another aspect, the inner ends of the slit may lead to the concentration of the charge resistor and the heat is extremely large area because it is not only the Sal Many slits are excessively to the connecting member to the battery cell model performance of the total. For this reason, the present invention will be described in a preferred embodiment, to configure the longitudinal slit in the first slit, the second slit and a third slit. The crab may be a first slit, the second slit and a third slit has a total plan view occupied by the connecting member is 1% to 20% compared to the flat electrode terminal of the battery leakage. Slit for less than the minimum value of the range, there is a possibility that the spaced ends of the resistance welding when the slit is connected as melting, a slit of greater than the maximum value of the range, reduced the area of ​​the connecting member in contact with the electrode terminal of the above-mentioned As the battery cells because the cause is not desirable. Under this area also, the system first slit and the second slit and a third slit may be formed in a predetermined length. Specifically, the shop three slits, a first slit or the second relatively long slit contrast, specifically, can be made to be less than to 130% in length is more than 100% compared to the first slit or the second slit, which first since thereby bypassing the third slits in the current carrying path of the reactive power in any case positioned between the slit and the second slit, it is to extend the conductive path as long as possible. When the length is less than 100% of the total slit 3, when it is more than 130% can not be expected to extend the above-described conductive path, since the total area of ​​the connecting member in contact with the electrode terminals of the battery cell decreases, which is not preferable. The system 1 and slit to the second slit of the same length, or both, may be made by any of a relatively short length, will be designed as desired depending on the connection form of the connecting members. In addition, the first slit and the second slit, respectively, the transverse and direction can reach the slit with the vertical, and in some cases, the bent relative to the first slit and the shop two slits respectively, parts connected to the lateral slits and a wedge shape, the interior angles of the wedge can also be implemented in the form of less than 120 degrees to 180 degrees or more. Alternatively, to the first slit and the second slit system in the form of the curve in the plane, respectively , it may be connected to the transverse slit shape. On the other hand, in the present invention, the battery cells are, in the state where a cylindrical metal can with the electrode assembly and the electrolyte is embedded, wherein the metal can may be a cylindrical battery selil of a closed structure as a top cap assembly. Also, the battery cells is a high energy density, discharge voltage, the lithium ion (Li-ion) with the advantages of an output reliability secondary batteries, lithium polymer (Li-polymer) secondary batteries, or lithium ion polymer (Li-ion It may be a lithium secondary battery such as a polymer) secondary battery. The cathode is, for example, after applying a common compound of the positive electrode active material, conductive material and a binder on a positive electrode collector and dried to manufacture, as necessary, may be further added to the layer jinje common compound. The cathode current collector is generally fabricated to have a thickness of 3 to 500 micrometers. All of the cathode current collector and an extended house, so long as having a high conductivity without causing chemical changes in the fabricated battery is not particularly limited, for example, stainless steel, aluminum, nickel, titanium, sintered carbon, or aluminum, carbon, nickel or titanium on the surface of stainless steel, can be used as such as to a surface treatment or the like. Positive electrode current collector and the current collector extension may also improve the adhesion of the positive electrode active material to form fine irregularities on its surface, it is possible to form various films, sheets, foils, nets, porous structures, foams and non-woven fabrics and the like. The positive electrode active material is lithium cobalt oxide (LiCo0 2 ), lithium nickel oxide (LiNi0 2 ) layered compounds or one or more transition metal compounds, such as substituted; Formula Li 1 + x Mn 2-x 0 4 (wherein, X is 0 - 0.33), LiMn0 3 , LiMn 2 0 3 , LiMn0 2 such as lithium manganese oxides; Lithium copper oxide (Li 2 Cu0 2 ); LIV 3 08 , LiFe 3 0 4 , V 2 0 5 , Cu 2 V 2 0 7 of vanadium oxide and the like; Formula LiNi 1-x M x 0 2 (Here, M = Co, Mn, Al, Cu, Fe, Mg, B or Ga, x = 0.01 ~ 0.3 Im) Ni site type lithium nickel oxide which is represented by; Formula LiMn 2-x M x 0 2 (where, M = Co, Ni, Fe , Cr, and Zn, or Ta, x = 0.01 ~ 0.1 Im) or Li 2 Mn 3 M0 8 (where, M = Fe, Co, Ni, Lyrium manganese composite oxide represented by the Cu or Zn); Some of the formula LiMn Li is substituted with alkaline earth metal ion 2 0 4 ; Disulfide compounds; Fe 2 (Mo04 ) 3 While the like, but is not limited to these. The conductive material is typically a common compound in the total weight including the cathode active material on the basis of 1 to 30 parts by weight 0 / 0 is added to. If these challenges with a conductive material without causing chemical changes in the cell is not particularly limited Not, for example, graphite such as natural or artificial hokyeon hokyeon; Carbon black, acetylene black, Ketjen black, channel black, furnace black, lamp black, carbon black and thermal black; Conductive fibers such as carbon fibers and metallic fibers; Metal such as carbon fluoride, aluminum, nickel powder, powder; Conductive whiskers such as zinc oxide and potassium titanate; Conductive metal oxides such as titanium oxide; Poly is a conductive material such as phenylene derivative may be used. The binder is combined with a house all the components that aid in binding to the, typically a common compound, based on the total weight of 1 to 30 parts by weight comprising a cathode active material such as the active material and the conductive material 0 / 0 is added to. Examples of the binder include polyvinylidene fluoride, polyvinyl alcohol, carboxymethyl selreul by Woods (CMC), starch, hydroxypropylcellulose, an ethylene a saelreul Woods, polyvinyl into Woods, playing selreul as a pyrrolidone, tetrafluoroethylene, polyethylene , polypropylene, ethylene-propylene-diene terpolymer (EPDM), sulfonated EPDM, styrene beuti butylene rubber, fluoro rubber and various copolymers and the like. Up pingye polymer, such as the layer jinje is optionally used as a component of suppressing the expansion of the positive electrode, if the standing fibrous materials without causing chemical changes in the fabricated battery is not particularly limited, for example, polyethylene and polypropylene; And fibrous materials such as glass fiber and carbon fiber. The anode is fabricated by applying and drying a negative active material on a negative electrode current collector and, if necessary, may be included as further optional ingredients such as described above. The anode current collector is generally from 3 to made from a 500 micrometer thick eu to the anode current collector, so long as it has suitable conductivity without causing chemical changes in the fabricated battery is not particularly limited, for example, copper, stainless steel It is treated as steel, aluminum, nickel, titanium, sintered carbon, and carbon on the surface of copper or stainless steel, nickel, titanium or silver, surface, aluminum-cadmium alloys. Also Similar to the cathode current collector, to form fine irregularities on the surface may enhance the bonding strength between the negative electrode active material, films, sheets, foils, nets, porous structures, foams and non-woven fabrics or the like can be used in various forms. The cathode active material is, for example, I carbon such as graphitized carbon, perhaps based carbon; Li x Fe2C) 3 (0≤x≤l), Li x WO 2 (0