METHOD FOR MANUFACTURING BATTERY CELL COMPRISING PERFORATED ELECTRODE
The present invention refers to a battery cell comprising a perforated electrode manufacturing method are disclosed. Due to a sharp increase in fossil fuel use alternative energy use of far-infrared radiating sheet or when a which, being extended and most pager study dioxide electrochemical power generation system using, storage field are disclosed. Electrochemical devices using current the electrochemical energy representative of specific embodiments secondary battery among them and, becoming more and more of the electric display device is provided method for using the same are disclosed. Cookies portable computer, portable phone, portable camera and development by techniques such as demand increases and as member accesses to a secondary battery consumption in the energy source, such secondary battery charge and discharge characteristics the higher command characteristic and environment-friendly lithium secondary battery has to be a number of research is performed came, etc. widely used in addition the bottom of the sea. Secondary cell includes an anode, cathode and separating electrode composed of the assembly of the tape to the source classification used for discharging any depending, typically, a sheet-like anode and cathodes for alleviating of jelly - roll (wound) wound in a separation membrane electrode assembly, cutting predetermined size in units of a plurality of anode and cathode layer are sequentially laminated (stacked) are formed in the stacked electrode assembly, an anode and a cathode layer are formed in a predetermined unit of a laminated stack of wound structure (Full cell) are bi-cells (Bi-a cell) or it will release and it will count/folding-typed electrode assembly such as is cited. In particular, aluminum laminate sheet stacked or stack cookies/folding-typed electrode assembly pouch type battery case structure to be built-in pouch type battery is, low number , small weight, easy shape deformation or the like reasons, etc. in addition to gather a lot of and the amount of gradually increased. However, in the case of a secondary battery, electrode assembly by embedded in a battery case together with electrolyte, said electrolyte sufficiently impregnated and wet (wetting) which is selected from a group consisting performance, for impregnated in said electrolyte, electrode assembly because of the effects of size and laminated structure or the like, including a medial portion of the electrode assembly to face the suffers and uniform electrolytes, the, charge, discharge cycle performed electrode over the whole surface of the pin is uniform electrode reaction difficult door number point. On the other hand, unit cell of a number when a plasticizer or tank in close contact, and hydrogen gas trap to portable battery which caused door number exists in the cell internal a pushing filling region number is generated and, further cell thickness becomes irregular, electrode cell number occurs from a defective appearance and battery safety door from being deflected door number is generated. In order to solve such door number point penetration via in a cookies electrode assembly via through hole electrolyte impregnation techniques for deriving the number was not formed. However, said through-hole right through holes forming layer is bar, process for preparing number output from the door through the number they may have, coefficient of apparatus having a stepped through hole according to production cost increases door number should flow tides. The, door number point such polluting need high kneading technique are disclosed. The present invention refers to said prior art door number has been requested from the past point such as descriptive and solves a number intended. The application of various experiments end inventor are depth 503,506 history chart, as described after, when battery cell number bath electrodes formed on the electrode active material has been applied tab electrode plate notching an active coating layer in the case of forming one or more holes through collector and shock, the first channel and battery electrolyte secondary battery door number number generator while improving internal gas [thu wrap process for preparing an excellent productivity and reduce the cost of the production costs, the present invention has been completed. Thus, the present invention according to the battery cell manufacturing method, one or more electrode plate at least one cathode plate is joined floating elements of unit cells formed by inserting the electrode assembly including at least two separating sheet or layer of a condition number battery cells in a bath method, (A)
The plane of the body and a cathode plate of a collector phenol-secondary battery supplying tank number; (B)
Anode and cathode plate in, electrode active material is not applied to the notching (notching) while forming outer collector electrode tab fat rises, electrode active material coating applied to active material coating layer through one or more hole punching process each current collector; (C)
In positive and negative plates are interconnected with each other through hole so that a rim-shaped unit cell number tank supplying layer; A including a characterized. Conventional electrode assembly or electrodes through hole punching equipment right by puncturing process should be performed in an generally. In this case, active material within the device electrode formed liquid for move should be performed after punching process interrupts exist, process for preparing number on temporal, marks is equal to loss. However, the present invention refers to the notching (Notching) electrode plate when battery cell number bath electrode tab in electrode active material coating layer for carrying out the process has been applied coating by forming current collector through holes, electrode assembly through hole number points on door manufacturing method can be improved. Generally, the process for preparing laminated structure including a grid electrode including electrode assembly number, a sum number number bath process for an anode and a cathode, a lithium secondary cathode current collector film is composed of sheet-like electrodes each sum number respectively positive and negative number bath comprising the step of, forming on the electrode tab, electrodes (Pressing) pressing process, electrodes having the desired cutting-width by electrode (Slitting) number bath process, vacuum drying process, an anode electrode prepared by the number, the step of forming the cathode electrode assembly configured and separating film etc.. One of , the same thickness as that electrode tab, the tab adjacent the electrode set of four device capable of cutting along residue into process notching process this may be. Specifically, vertically movable cavity configured to cutting electrode and, specifically cavity is installed to a number of four-pressing and cutting to a certain type of notching pattern tab formed cavity and fall (notching pattern), notching according only a portion end of cutting device to perform a process using a notching, which protrude from remaining after cutting end of form front electrode tab are used. In notching of the existing method is also 1 is shown a plane view indicating notching pattern disclosed. The reference also 1, electrode active material of the electrode plate is not applied onto the current collector (100) rises to form outer electrodes tab is shown performed notching fat portion 2000. Cavity fall, a number of four-tap site (20) formed by pressure is applied which causes the cutting electrode tabs. A number of four internal cavity of the present invention notching device tab site (20) as well as, electrode plate formed therein to a predetermined position by pressing and cutting holes notching pattern in the nanometer range. Cavity fall, notching the outer collector electrode according not improve safety of fat in electrode tab portion while cutting part number rises applied coating comprising an active material coating layer collector electrode active material have through holes formed therein. Said through-hole has not number but the number door, one particular in one example, electrode plate plate comprises a planar central drilled through hole number 1 coating layer onto active material can be. In addition, holes with said number 1, number 2 position number 1 on a plane symmetrical about the through hole comprising at least two through-holes can be. Wherein, when each electrode plate including at least two through-holes, the total area of said through hole on a plane total active material for coating layer 0. 1 Be a melt viscosity of 0.1 to 1%. But, electrode plate plate and the number of through-holes each other, electrode plate plate are interconnected with each other through hole to a rim-shaped module and a unit cell layer. Applying a metal plate anode plate are interconnected with each other through hole position when contacted with a good impregnation of electrolyte, anode and cathode plate using the same notching device can be through-hole, the pin is advantageous process for preparing number bath on cost and number. According to the present invention using an electrode plate through hole number prepared by the battery cells through unit cells are not joined to a separator as unit cells, positive and negative electrodes are in direct contact through hole forming region by preventing, battery cells according to internal short circuit and fire prevention can. On the other hand, plate are located on the both sides with the same polarity as said unit cell located bi-cells composed reflector plate, plate are located on the both sides located plate having the opposite polarity it will release and one which it will count be composed. Said through-hole has shape are specially number but not one, arranged on a plane circular, elliptical or polygonal or the like may have. The upper surface of the trench applying to a metal plate through-hole has an anode plate interposed communication position should have necessarily identical shape but not limited to, the battery if it has the same shape as each other line to which the flow of liquid can be smooth. On the other hand, the size of the anode plate through hole electrode plate upper surface of a metal plate can be relatively larger size than the size of holes. Specifically arranged on a plane upper surface of 101% to 200% the size with respect to a cathode plate correspond to the upper surface of said anode plate may be size, preferably 105% to be a size of 150%. An anode plate of the present invention is larger than the upper surface of upper surface of a metal plate size, is passed to the position of an upper surface of each other on a plane when said inner upper surface of a cathode plate anode plate is worked without overlapping inner upper surface of a cathode plate slows rises preferably has an inner surface positioned on the outside. The trench but interposed between the plurality of through-holes, such as a shock through the battery door number in which case the hole portion substantially tear the retardant fire such as cell plate electrode plate to prevent contact in order to ensure safety by again are disclosed. Specifically, a cathode plate arranged on a plane equal to said upper surface of anode plate center axis on the upper surface of the centers can be located. On the other hand, the upper surface of the top electrode plate applying a cathode plate position necessarily symmetrical positions need not necessarily be disclosed. After the electrode plate are interconnected with each other through hole in amount if not even necessarily symmetrical positions ST formed there disclosed. Specifically, electrode assembly includes a plurality of unit cells comprising battery cell of the present invention separating by a sheet of a stack of/folding-typed electrode assembly structure wound around the wire reel may be, another embodiments pattern having a plurality of unit cells stacked/stacked electrode assembly interposed state be a lamination structure. Said anode/cathode/anode current collector unit cell by applying a negative electrode active material to form a coating, notching device through electrode tab and electrode plate through-holes formed positive and negative plates of number and high pressure liquid coolant, said anode and cathode plate through hole number encoded by bonding a layer not containing bath. Said layer number but not one kind of oil/inorganic composite porous SRS (Safety provided Reinforcing Separators) be a layer. According to the present invention, typically used as the negative electrode active material for a lithium secondary battery negative electrode active material can be used without a number, e.g., difficulty graphitization carbon, such as graphitic carbon carbon-containing substance; Lix Fe2 O3 (0 ≤ x ≤ 1), Lix WO2 (0 ≤ x ≤ 1), Snx Me1 A-x Me 'y Oz (Me: Mn, Fe, Pb, Ge; Me ': Al, B, P, Si, of the periodic table of group 1, group 2, group 3, halogen;<x ≤ 1 0; 1 ≤ y ≤ 3; 1 ≤ z ≤ 8) such as metal composite oxide; lithium metal; lithium alloy; silicone-based alloy; tin-base alloy; SnO, SnO2 , PbO, PbO2 , Pb2 O3 , Pb3 O4 , Sb2 O3 , Sb2 O4 , Sb2 O5 , GeO, GeO2 , Bi2 O3 , Bi2 O4 , And Bi2 O5 Metal oxide; polythienylene such as conductive polymer; Li provided Co-a Ni-based material can be use. But, all cathode active material has the same result indicated, during said negative active material qualities, carbon-based material the case can exhibit an excellent effect. Particularly, said carbon-containing substance comprises graphite carbon, coke carbon, soft carbon and one or more selected from the group consisting be a hard styrene butadiene rubber. This natural graphite is scale-like natural graphite grinding raw material, assembly number can be spherical form high pressure liquid coolant, the number prepared by the spherical natural graphite is, in electrolyte decomposition reaction material is at least a specific surface area can be reduced. The, said spherical natural graphite in the form of natural graphite and mixed after assembling disclosed is a filling density is increased and when electrode, energy density can be improved. More particularly, manufactured by mixing said natural graphite, artificial graphite, artificial graphite or natural graphite and can be. According to the present invention, the positive electrode active material, e.g., lithium cobalt oxide (LiCoO2 ), Lithium nickel oxide (LiNiO2 ) Or 1 or more transition metal substituted compounds such as lamellar compound; formula Li1 + X Mn2 A-x O4 (Wherein, x is 0 - 0. 33 That would yield), LiMnO3 , LiMn2 O3 , LiMnO2 Such as lithium manganese oxide; lithium copper oxide (Li2 CuO2 ); LiV3 O8 , LiV3 O4 , V2 O5 , Cu2 V2 O7 Such as vanadium oxide; formula LiNi1 A-x Mx O2 (Wherein, M=Co, Mn, Al, Cu, Fe, Mg, and B or Ga, x=0. 01 - 0. 3 That would yield a) represented Ni site type lithium nickel oxide; formula LiMn2 A-x Mx O2 (Wherein, M=Co, Ni, Fe, Cr, and Zn or Ta, x=0. 01 - 0. 1 That would yield) or Li2 Mn3 MO8 (Wherein, M=Fe, Co, Ni, Cu or Zn that would yield a) represented lithium-manganese complex oxide; part of alkaline earth metal ions substituted LiMn formula Li2 O4 ; Disulfide compound; Fe2 (MoO4 )3 But as to the, these only and not limited. The present invention refers to in addition, battery cell manufacturing method of the present invention one or more battery cells prepared by the number including device according number substrate. Said device specifically, mobile phone, tablet computer, notebook computer, power tool, wearable electronic device, electric vehicle, hybrid electric vehicle, plug - in hybrid electric vehicle, and power storage device selected from the group consisting of be a production cost. Since the contrast method publicly known structure and the small number of such devices, the specification details omitted in its description as follows. Said as described, the present invention according to battery cell number when the tank battery cell manufacturing method, by forming a through hole electrode tab electrode plate forming notching process, increase woven fabric layer having a electrolyte electrode assembly, separate conventional battery cell manufacturing method for forming a through hole at a place and simplified process for preparing the battery cell number, number tank can be formed in the lower part. In addition, electrode plate plate through-holes communicating with the positive and negative contact of the upper layer portion interposed, hydrogen gas is formed in the battery cells and trapped in the upper safety and battery appearance can be improved. Figure 1 shows a mimetic of the existing method for engraved electrode also are disclosed; Figure 2 shows a through hole in the embodiment according to one of the present invention indicating plane also are disclosed; Also in the embodiment according to Figure 3 shows a through hole of the present invention indicating another mimetic are disclosed; Figure 4 shows a schematic of the present invention one in the embodiment according to electrode assembly consisting also visually representing a laminated structure including a unit cell of a mimetic are disclosed; Figure 5 shows a O-a O ' indicating vertical cross-sectional drawing of Figure 4 along the cutting unit cell to determine the laminated structure are disclosed. In hereinafter, according to an embodiment of the present invention drawing through a browser but reference, this is easier and more sophisticated understanding of the present invention for the, category of the present invention defined by it are not correct. General notching device (not shown) moves vertically with the cavity, the cavity in notching descends, in Figure 1 the number of four-tap as a site (20) to a plurality of hierarchies. Figure 2 shows a through hole in the embodiment according to one of the present invention indicating plane also are disclosed. According to the present invention, such as perform cavity is also 2 are formed to be using the notching device, the electrode plates (300) of coating (200) number 1 is located in the through hole forming region (30) by notching a number 1 through hole formed on the substrate. At this time, coating together constituting active material coating layer and a collector a through hole formed on the substrate. Figure 3 shows a mimetic of the present invention in the embodiment according to another through hole indicating also are disclosed. 2 Also shown in number 1 through hole forming region (30) in addition to the, two of four tabs (10, 10 ') of number 1 between the through hole forming region (30) symmetric virtual line of reference number 2 through hole through which the forming region (40, 40') etc. is shown. Even take on the shape of the plurality of through-holes in different electrodes in entirely or even further hereinafter, a metal plate through hole (321) and an anode plate through hole (311) so that they communicate with each other in the layer (400) can be joined to form. Figure 4 shows a are also through hole (311, 321) including a plate (310) and a cathode plate (320) and a second electrode plate interposed between a layer which does not have the holes (400) to determine visually representing a stack structure of a mimetic are disclosed. Positive plate (310) through holes (311) is a cathode plate (320) through holes (321) is larger than the size of the, same axis on the upper surface of center (O, O ') located, positive plate (310) through holes (311) mutations in the inner periphery of the upper surface of a cathode plate without overlapping a cathode plate located on the outside of the inner circumference of the through hole is equal to inner slows rises. But, also shown in position number 3 to 4 also upper surface of not one, not necessarily through-holes drilled in symmetrical position number plate is not one. Figure 5 shows a center of each electrode plate through holes extending O-a O ' indicating vertical cross-sectional drawing of Figure 4 along the cutting unit cell to determine the laminated structure are disclosed. As described said, plate (310) through holes (311) the size of the cathode plate (320) through holes (321) is larger than the size of the, including through hole layer interposed between the electrode plates (400) does not include the through-hole. General unit cell including a plurality of unit cells directly from the central portion toward the end of the electrode plate are electrode electrolyte inlet but the electrode plates, the present invention according to the electrode assembly includes a electrode plate formed passing through the electrolyte even sound, greatly increased electrolyte impregnation and equal to or less. In addition, connected to the, fixed on the gas, and hydrogen gas generated from the trap door number can improve battery safety and reject. Through a browser but more a of the present invention in the embodiment, the present invention application if said person with skill in the art based on the content of the present invention is provided in a variety of different applications and deformation will performing category. The present invention relates to a method for manufacturing a battery cell comprising an electrode assembly in which at least two unit cells having a structure where at least one positive plate and at least one negative plate are bonded to a separator are provided with a separating sheet or a separator interposed therebetween. The method of the present invention comprises the steps of: (a) manufacturing a positive plate and a negative plate by applying an electrode active material to one surface or both surfaces of a current collector; (b) forming an electrode tab by notching a non-coated portion on an outer circumference of the current collector, in which the electrode active material is not coated, in the positive plate and the negative plate, and perforating at least one through-hole penetrating the current collector and an active material coating layer, in a coated portion on which the electrode active material is coated; and (c) manufacturing a unit cell by bonding the positive plate and the negative plate to a separator at a position where the through-holes communicate with each other. COPYRIGHT KIPO 2018 At least one electrode plate at least one cathode plate floating structure formed by at least two separating sheet or layer are bonded with a phone battery cells including a number with which the electrode assemblies in bath method, (a)
The plane of the body and a cathode plate of a collector phenol-secondary battery supplying tank number; (b)
Anode and cathode plate in, electrode active material is not applied to the notching (notching) while forming outer collector electrode tab fat rises, electrode active material coating applied to active material coating layer through one or more hole punching process each collector; (c)
In positive and negative plates are interconnected with each other through hole so that a rim-shaped unit cell number tank supplying layer; characterized in including a battery cell manufacturing method. According to Claim 1, said electrode assembly includes a plurality of unit cells to constitute a stack of electrode assembly structure wound around the wire reel by isolation sheet folding/battery cell manufacturing method characterized. According to Claim 1, said electrode assembly includes a plurality of unit cells stacked/stacked electrode assembly for alleviating state layer lamination structure to constitute battery cell manufacturing method characterized. According to Claim 1, located on both sides having the same polarity as said unit cell plate are located a third battery cell manufacturing method characterized in that the plate-composed. According to Claim 1, said unit cell plate are located on the both sides located battery cell manufacturing method characterized composed it will release and it will count and the plate having the opposite polarity. According to Claim 1, said electrode plate plate comprises a planar central drilled through hole coating layer onto active material number 1 in the event that the battery cell manufacturing method characterized. According to Claim 6, said at least two symmetrical about the position number 2 number 1 on plate comprises a planar electrode plate through-holes in the event that the battery cell manufacturing method characterized by comprising through-holes. According to Claim 7, said electrode plate plate number 2 being a respective plurality of through-holes, through holes are through-holes radially symmetrical locations about said number 2 number 1 characterized in that the battery cell manufacturing method. According to Claim 1, said through-hole has arranged on a plane circular, elliptical or polygonal shape battery cell manufacturing method characterized. According to Claim 1, position the main cathodes plate upper surface of relatively large than the size of the upper surface of the anode plate size battery cell manufacturing method characterized. According to Claim 10, arranged on a plane upper surface of 101% to 200% the size with respect to a cathode plate correspond to the upper surface of said anode plate characterized magnitude as that of the battery cell manufacturing method. According to Claim 10, arranged on a plane upper surface of a cathode plate without overlapping said inner upper surface of anode plate is worked which slows the inner upper surface of inner anode battery cell manufacturing method characterized located outside rises. According to Claim 10, arranged on a plane upper surface of anode plate center axis on the upper surface of said cathode plate center equal positioning battery cell manufacturing method characterized. According to Claim 1, wherein each said electrode plate plate two or more through-holes, said through hole of total surface coating layer 0 total surface of the active material to be arranged on a plane. Battery cell manufacturing method characterized by 1% to 1% range. According to Claim 1, said SRS/inorganic composite porous membrane is presented (Safety provided Reinforcing Separators) a battery cell manufacturing method characterized the trench. Number 1 to number 15 according to one or more battery cells prepared by the number including anti anti either device. According to Claim 16, said device comprises a mobile phone, tablet computer, notebook computer, power tool, wearable electronic device, electric vehicle, hybrid electric vehicle, plug - in hybrid electric vehicle, and power storage device characterized device selected from the group consisting of a production cost.
