TW550846B - Manufacturing method of Lithium battery and device thereof - Google Patents

Abstract

The present invention is a manufacturing method of Lithium battery and device thereof. The Lithium battery is manufactured by firstly stamping the conductive material into a positive and negative electrode plates, wherein the positive and negative electrode plates are coated with active material; arranging and disposing the positive and negative electrode plates on a long-stripe-like isolation film with proper sequence and spacing; proceeding folding operation of the positive and negative electrode plates on the isolation film according to its arrangement sequence, wherein the stacked positive and negative electrode plates have the isolation films between their spacing, and each of the positive electrode plate and negative electrode plate has the coated active material, so as to complete the assembly/manufacturing of the Lithium battery. Thus, the manufacturing method of Lithium battery is simplified, which can vary the dimension specification rapidly and provide the convenience of expansion, and further increase the yield rate of production for accomplishing the best production economy.

Description

550846 V. Description of the invention [Invention model can be achieved with improvement [Increase the back of the invention, such as the first 9 2 ', and the development of the pool with the poor, the economic elasticity system 4 58¾ case. In addition, the burrs of the hot-pressed plates with the positive and negative electrodes stacked in Figures 2 and 3 are not high. It also provides a method of operation. [Invention (1)] It is possible to make simple batteries. As shown in the figure, the two strips are necessary because of the rolls of the strips and the United States has shown otherwise, its plate 9 5. The problem of the post-hot-pressing battery system is difficult to reach 'how simpler is the industry overview] Lithium batteries, in particular, are a method and a device for manufacturing a lithium battery that is fast in production, has a variety of adjustable adjustment functions, and has a better yield. The aluminum foil, the shape of the separator, is very beneficial. The patented positive, including 9 6 and the adhesive side make it to the solution of easy manufacturing. When the battery is separated from the film by the metal foil 93, the positive and negative electrodes make the winding precision and tension. Relevant No. 6, 2 94, the negative plate is stacked with two positive poles, and this type, because the short circuit of the negative electrode is a lithium polymer secondary battery that has the same advantages as the above-mentioned masterpieces and should strive to develop packaging materials. The positive electrode plate 91 and the negative plate 94 of the base material are formed by winding, and this kind of electric sheet and the separator are easily deviated in the process of forming three different materials to form a winding machine for positioning force control. Republic of China Patent No. 8410 102B, No. 6, 235, 0 66B1 and other methods of manufacturing batteries, such as the plates 9 5, 9 6 and a negative plate 97, there should be a separator 98, and the entire electrode plate And the two isolation films are stacked with three pairs of alignment pieces, which makes the alignment and pole probability extremely high, which leads to competitive commercialization of battery production yield. ^ = The lack of battery manufacturing, and the key direction for the development and breakthrough of lithium polymer batteries that improve the yield.

Page 4 550846 V. Description of the invention (2) '' The main purpose of the present invention is to provide a lithium battery, and its device, which can make lithium polymer and lithium ion battery manufacturing method, operation, and quick response specifications. Various adjustments and quick work to achieve a simple system can greatly improve the positive benefits of production yield. Expansion of production, and yet another object of the present invention is to provide a lithium battery and its device, which can make the lithium polymer and lithium ion battery a good manufacturing method and make it, and even if it is artificial, it can be achieved by simple fixtures. A short process, and to ensure the smooth flow of the production line and the name of the system. The safety effect of production and application In order to understand the technical features, methods and other aspects of the present invention, the detailed description with the illustrations is as follows: 1. There is a further [implementation note] Please place the first battery, which includes 14 and negative carbon mesh handles 142 material (the conductive coating; he conductive the plate, see Figures 4 and 5, is an embodiment of the method of manufacturing the lithium battery of the present invention 'the bell polymer mine, also 1 nr々 八 装 # 10A, W (or Lithium-ion battery) is composed of: 10A, positive conductive handle 10B and negative conductive handle ioc, f a separator π, the separator 1Lh is provided with a plurality of positive plates 5 and the positive plate The substrate of 14 is aluminum foil (or metal mesh, other conductive materials), and includes an electrode plate 141 and a protruding conductive electrode plate 1 4 1 series coated with lithium intercalation positive electrode on one or both sides. Lithium cobaltate, lithium manganate, lithium nickelate, or a mixture thereof), and ^ 142 is used as the conductive part of the electrode plate 141 and the outside, and the base material on which the negative electrode plate 12 is not made is copper foil (or Metal mesh, carbon mesh, etc.) / '. It also includes an electrode plate 1 2 丨 and a protruding conductive handle i 2 2, 1 2 1 which are coated on one or both sides with a lithium post-entry negative active material (such as

550846 V. Description of the invention (3) Graphite coke, hafnium oxide, or a mixture thereof), and the conductive handle 1 2 2 is used as the electrode plate 1 2 1 and the external conductive part, and the active material is not coated thereon, and The lithium-embedded positive electrode and negative electrode active materials respectively coated on the electrode plates 1 4 1 and 1 2 1 are mainly used as lithium atoms in and out, storage, and release. In addition, the electrode plate 1 4 1 of the positive electrode plate 14 may be smaller in design than the electrode plate 1 2 1 of the negative electrode plate 12. Lithium polymer battery as shown in Figures 4 and 5! 〇It is assembled by using seven positive and negative plates 14 and 12 as an example. The assembly method of the present invention is described as follows: 1. The Ming foil and the copper foil are coated with an active material, and then the aluminum foil and the copper foil are assembled. They are punched into positive and negative plates 14, 12 having a sheet shape, respectively. 2 · Arrange the two negative plates 1 2, two positive plates 1 4, two negative plates 12 and one positive plate 14 in order. 2 and a positive electrode plate i 4 are respectively adhered to the separator film 1 1 and form one of the front separator film 1, the rear separator film 1 1 2, and the intermediate electrode plate 1 2 1, 1 4 1 间 之间 保护 膜 113。 113 between the isolation film 113. ^

Wherein, the positive and negative plates 14 and 12 can be glued on the separator 11 in a dot-like or partial glue manner to fix the electrodes 1 4 丨 and 1 2 丨 on the separator 11 Position 'to facilitate subsequent operations; in addition, a positive- and negative-electrode plate 1 4 and 2 can be bonded to the positive and negative plates 141 and 121 in a fully bonded manner by using an isolating film 11 with a certain temperature hot melt. The isolation film 11 is hot-pressed after the battery cell 10A is completed, so that the battery cell 11A has the advantages of forming a multi-layered composite material, and has the advantages of being difficult to expand and being stable in electrical properties. In addition, the adhesive is a material that can cause porosity after the solvent is dried when the plates are bonded, or it can dissolve in the electrolyte.

550846

The surface is coated and ': the second negative electrode plate 1, the second negative electrode plate 12B is a single continuous first, second and second decay surface adhered to the isolation film 11, and this is the beginning, because it is folded: Ξ The principle of lamination of the pole poles (the negative plate or the positive plate) pl, described later 4) will be the same poles stacked on the electricity i ^ 1 f) & the most central layer, forming each-and The upper surface of the upright / tail pond heart 1 0 Α is coated as a set leaf. J ® corresponds to it and cannot react, so single-sided coating is used; and the sixth negative plate ⑻,: negative system is single Surface coating, "is the last two electrode plates (coreless 10A, said Λ, said the laminating principle, because it will be the battery after folding, so" and take the next ^ "to form each have-surface Can't produce a response ', so it was designed with early-side coating. Pain --- ^ ^ ^ Negative plate 1 and positive plate 1 4 on the film i 1 are fed into the fold in the order of their arrangement, that is, the front isolation film is first After folding to the first negative plate 12A, fold it in order according to the arrangement order of the second negative plate 12B to the seventh positive plate i4 (j, and rear separator 112, so each time it is folded, One That is, stacking the electrode plate (negative electrode plate 12 or positive electrode plate 14) and the separator ^ each "one layer", so that the positive electrode and the negative electrode are separated by the separator 丨 丨 to form a layer by layer stacking to complete the lithium polymer battery 1 〇 Folding assembly operation. The front separator 1 1 1 is to cover the left edge of the first negative plate J 2 A, so that the first negative plate 1 2 a can be borrowed by the front separator The third positive electrode plate 14 C forms a partition without causing a short circuit; the inter-isolation film 11 3 enables the electrode plate to avoid the turning area and form a position of accurate stacking when the electrode plate is folded; and the rear isolation film Π 2 is left After the folding is completed, tape or adhesive can be attached to fix the battery cell 10 A. 乂

Furthermore, in the present invention, the positive and negative bell polymer batteries 1 and 1: are reversely bonded to an isolation film and folded. Therefore, the positive and negative handles are determined: = the thickness of the battery cell 1 after stacking depends on the number of electrode plates. The number of multiple pieces is the positive and negative of the stack, and each of the plates is 22? The thickness of i〇a is thicker. At the time of bonding, the conductive handles 122 and 142 protruding from the upper part of the upper pole are on the same side, so that the electrode plates 121 and 141 are folded and stacked to be 10B, and the Conductive handle =? Handle 142 is stacked to form the positive conductive handle 10B and the storage electrode '邕 to form the negative conductive handle 10C, and the simultaneous welding and fixing of C and the external conductive handle (not shown: please refer to the following) FIG. 6 shows a method for manufacturing a lithium polymer battery and a second embodiment of the present invention, in which the first negative electrode plate 1 2 A of the lithium polymer battery (or lithium ion battery) is a double-coated negative electrode To replace the first negative plate 1 2 B ′ as shown in FIG. 5 and to form a first electrode plate vacancy 11 B ′ vacated relative to the position of the electrode plate, and the second electrode plate vacancy 11 β The first negative electrode plate 1 2 A 'is covered on both sides by the separator 11 to separate the third positive electrode plate 14 C so that no contact short circuit is formed; therefore, the polymer battery 10 is folded according to it. The sequence is the front separator 111, the first negative plate 12A, the second electrode plate vacancy 11β, the third positive plate 14C, and the fourth The positive electrode plate 14D, the fifth negative electrode plate 12E, the sixth negative electrode plate 12F, the seventh positive electrode plate 1 4G, and the rear separator 112. The lithium polymer battery 1 formed by folding the foregoing first and second embodiments. , 10, the order of the positive and negative plates 1, 4, 12 can be reversed and changed according to the polarity of the plates at the same time, plus the first and second plates can have two single sides

Page 8 550846 V. Description of the invention (6) Changes of coated or one-sided coated electrode plates, and the conductive handles 1 4 2, 1 2 2 of the positive and negative plates i 4 and 1 2 2 can be adjusted at the same time. Changes, so its arrangement can be derived from eight forms such as Figures 5 to 12.

Refer to FIG. 13 for the second embodiment of the lithium polymer battery manufacturing method and device according to the present invention. The lithium polymer battery (or lithium ion battery) 2 is composed of a separator 22 and a plurality of negative plates 24. The positive electrode plate 26 is arranged and combined and folded. The isolation film 22 is a long strip, which includes a first film surface 221, a second film surface 222, and a bent end 223. The first film surface 221, since the fold end 22 3, the first negative plate 24A, the second negative plate 24B, and the third negative plate 24C are arranged at an appropriately increasing interval (22, 228, 220 "), and the first The two membrane surfaces 222 are provided with a first positive plate 26A, a second positive plate 26B, and a third positive plate 2 60 in a corresponding manner from the second negative plate 24B, that is, the first positive plate 26A corresponds The second negative plate 24B and the second positive plate 2 6B correspond to the third negative plate 240... To complete the order of the negative, positive plates 2 4, 2 6 on the edge separator 22, and the negative, The positive plates 2 4 and 2 6 can be glued on the first film surface 221 and the second film surface 22 2 of the isolation film 22 respectively. Furthermore, the continuous negative electrode plate arrangement provided on the first film surface 221 and the continuous positive electrode plate arrangement provided on the second film surface 2 2 2 can be reversed in position, and the bent end 22 3 can make the The separator 22 is bent upwards or downwards, so that the continuously arranged negative electrode plate can be formed on the first layer of the separator film 22, and the consecutively arranged positive electrode plate can be formed on the first layer of the separator film 2 2 'Or the continuously arranged positive plates are on the first layer of the separator 22, and the continuously arranged negative plates are on the second layer of the separator 22. Please refer to Figures 1, 4, and 15 when you want to fold and assemble the lithium polymer battery.

Page 9 550846 V. Description of the invention (7)

At 20 o'clock, the first negative plate 24A is first folded toward the first positive plate 26A, and the first negative plate 2 4 A, the first positive plate 2 6 a, and the second negative plate 2 4 B are initially stacked. Continue to fold the second positive plate 26B to complete the entire stacking combination, and separate the positive and negative plates 26, 24 from each other with the isolation film 22, and the increasing interval (22A, 22β) The 22C setting enables the sheet electrode to bypass the turning area and be stacked flat on the upper layer. In addition, because the last two sheets of the negative plate are the uppermost and lowermost layers after folding, the active material can be coated on one side. The arrangement and folding of the positive and negative plates 26 and 24 on the separator 22 can increase the production speed of the lithium polymer battery 20, and avoid the negative and positive plates. It confuses and contaminates, and makes it unnecessary to fold, such as when the single layer is folded, the first pole piece has two layers of isolation film. Because the present invention can not only provide rapid size change and expansion knife, but also fix positive and negative plates , So that the Shun 2 pack is completed, even by manual folding ^ mouth quality, and In the present invention, the most difficult short-circuit problem of the battery is achieved to achieve the best production economy. The production process is simplified, and the charging method is convenient. The operation can also be achieved by folding the long insulation film against the edge of the plate. The accurate and good battery has eliminated the problem of tension control, and it is not easy to greatly improve its production yield and benefits. ^ Based on the above, this patent application is filed. However, = has already been familiar with the equivalent modification or change scheme of this case Symbol Description】

It is clear that the requirements of the invention patent have been met, according to the law. The above is only a good example of the present invention. Those skilled in the art who rely on the spirit of the invention should be covered by the patent scope of this application.

550846 V. Description of the invention (8) 91 positive plate 92 negative plate 93 '94 separator 95 ^ 96 positive plate 97 negative plate 98 separator 10 lithium molecular battery 10A battery core 10B positive conductive handle 10C negative conductive handle 11 isolation film 14 positive Plate 12 Negative plate 141 Polar plate 142 Conductive handle 121 Polar plate 122 Conductive handle 111 Front separator 112 Rear separator 113 Interlayer separator 12A First negative plate 12B Second negative plate 14C Second positive plate 14D Fourth Positive plate

Page 11 550846 V. Description of the invention (9) 12E The fifth negative plate 12F The sixth negative plate 14G The seventh positive plate 1 (Γ lithium-oriented molecular battery 12A 'The first negative plate 1 1B The second electrode plate is vacant 14C Second positive plate 20 Jingnan molecular battery 22 Isolation film 24 Negative plate 26 Positive plate 221 First film surface 222 Second film surface 223 Bend end 22A, Β, C interval 24A First negative plate 24B Second negative plate 24C Second negative plate 26A First positive plate 26B Second positive plate 26C Second positive plate

Page 12 550846 Brief description of the drawings Figure 1 is a schematic diagram of the conventional lithium polymer battery manufacturing. FIG. 2 is a schematic diagram of manufacturing another conventional lithium polymer battery. Figure 3 is a schematic cross-sectional view taken along the direction A-A of Figure 2. FIG. 4 is a schematic perspective view of a lithium polymer battery of the present invention. Fig. 5 is a schematic diagram of the first embodiment of the present invention. Fig. 6 is a schematic diagram of a second embodiment of the present invention. Figures 7 to 12 are schematic diagrams of different arrangements of the plates of the present invention. Figure 13 is a schematic diagram of a third embodiment of the present invention. FIG. 14 is a first schematic diagram of a folding operation according to the third embodiment of the present invention. Figure 15 is the second schematic diagram of the folding operation of the third embodiment of the present invention.

Page 13

Claims (1)

550846 VI. Scope of patent application1. A method for manufacturing a lithium battery, which includes the following steps: a. First coating the positive and negative plates with an active material; b. Punching a conductive material into a plate with a sheet shape, The electrode plate includes a positive electrode plate and a negative electrode plate; c. The positive and negative electrode plates are arranged on a long ^ -shaped separator in an appropriate sequence and interval; d. The positive and negative electrode plates on the separator The folding and operation are performed in accordance with the arrangement order, and the separation film is separated between the positive and negative plates after the stacking, and the coated active material is provided on the opposite surface between the positive and negative plates. Assembly of the carp battery. __ 2-The method for manufacturing a lithium battery according to item 1 of the scope of the patent application, wherein step d is a step of coating the positive electrode active material with an intercalating positive electrode active material on one side of the positive electrode plate opposite to the negative electrode plate. 3. The method for manufacturing a lithium battery according to item 1 of the scope of patent application, wherein the step d is to coat a negative electrode active material with an intrusive negative electrode active material on one side of the negative electrode plate with respect to the positive electrode plate. 4 · The method for manufacturing a lithium battery as described in item 1 of the scope of the patent application, wherein, step d is a step of adhering the positive and negative plates to the separator, and forming a front separator on the separator, A rear isolation film and an isolation film between the plates. ¥ 5 · The method for manufacturing a lithium battery as described in item 1 of the scope of patent application, wherein step d is to fully adhere the positive and negative plates to the separator, and the separator is hot-melt, and can be performed. Thermoformer. 6 · The lithium battery manufacturing method described in item 1 of the scope of patent application, wherein Page 14 550846 VI. Scope of patent application The first electrode plate and the second electrode plate in step C are the same electrode plate. 7. The method for manufacturing a lithium battery according to item 6 of the scope of patent application, wherein the same-electrode plate is coated on one side with an active material. 8. The method for manufacturing a lithium battery as described in item 1 of the scope of patent application, wherein the last two electrode plates of step c are coated with an active material on one side. 9 · The method for manufacturing a lithium battery according to item 4 of the scope of the patent application, wherein the front insulation film is used to cover the side edge of the first electrode plate to isolate those who prevent short circuit. I 0 · The method for manufacturing a lithium battery as described in item 4 of the scope of patent application, wherein the rear isolation film can be affixed with an adhesive tape after the electrode plates are folded and stacked for the convenience of fixing. II. The method for manufacturing a lithium battery as described in item 4 of the scope of the patent application, wherein the rear isolation film can be provided with an adhesive after the plates are folded and stacked for the convenience of fixing. 1 2 · The method for manufacturing a lithium battery as described in item 1 of the scope of the patent application, wherein the positive and negative plates each have a conductive handle protruding, and the conductive handle is designed at a position where the positive and negative plates are bonded to the separator, so that After the electrode plates are folded and stacked, the same-pole conductive handles are all on the same side. 1 3 · The method for manufacturing a lithium battery as described in item 1 of the scope of patent application, wherein the first electrode plate of step c is double-sided coated with an active material, and the first electrode plate is adjacent to the first electrode plate. Between the plates is formed a vacant space relative to the position of the plates. 1 4 · The method for manufacturing a lithium battery as described in item 1 of the scope of the patent application, wherein the interval between the plates is such that the plate-shaped plates can bypass the turning area and be stacked flat. Page 15 550846 VI. Scope of patent application 15 Those who set the interval on top of the previous layer. The lithium battery manufacturing method described in the first item of the scope, wherein the column method is the intersection of two positive plates and the two negative plates. The design of the last two plates is different from each other. The wrong poles are arranged in the same row as the patented pole plates, and the pole plates. Patented row of polar plates, while polar plates. The method for manufacturing a lithium battery described in item 1 of the scope of the patent application, wherein the column method is the two negative plates, and the last two plates are at the intersection of the two positive plates. Such as the application of the initial plate and the connection 19 · A positive and negative plate through the negative electrode to form 20 · If the application, the negative electrode 2 1 · If the application, the second of the negative and the second of the patent and the second of the battery handle, the negative . The patent plate is a patented plate with a range of positive relative range and a negative relative device. The positive and negative plates of the 15th electrode plate are empty and the 16th electrode plate is empty. The compartment of the electric negative plate is included in the package. The described lithium battery can be provided on both sides. The lithium battery can be provided on both sides. There is a battery cell core system, including inter-phase separation, and the film system is a continuous cell manufacturing method. By. A method for manufacturing a cell, in which a negative electrode substitute of an active material is coated. The positive electrode has a conductive handle, a plurality of positive electrodes, a separator, and each of the elongated separators. The lithium battery device according to the item 19, wherein the positive electrode is a conductive foil. The lithium battery device according to the scope of item 20, wherein the positive is a conductive mesh. Page 16 550846 VI. Scope of patent application 2 2 The lithium battery device according to item 19 of the scope of patent application, wherein one surface of the positive electrode plate opposite to the negative electrode plate is coated with a lithium-embedded positive electrode active material. 2 3. The lithium battery device according to item 19 of the scope of application for a patent, wherein a surface of the negative electrode plate opposite to the positive electrode plate is coated with a lithium intercalated negative electrode active material. 24. The lithium battery device according to item 20 of the scope of patent application, wherein the length and width of the positive and negative electrode plates may be smaller than those of the negative electrode plate. 2 5 · The lithium battery device as described in item 19 of the scope of the patent application, wherein the edges of both sides of each of the positive and negative plates are covered by the elongated separator to prevent the positive and negative plates. A short-circuiter. 2 6 · The lithium battery device according to item 19 of the scope of patent application, wherein the positive and negative plates are respectively adhered to the elongated release film. 27. The lithium battery device as described in item 19 of the scope of patent application, wherein the isolation film is hot-melt, and is fully bonded to the positive and negative plates, and can be hot-pressed. 28. The lithium battery device according to item 19 of the patent application scope, wherein the elongated separator film can be fixed with a piece of tape to fix the battery cell. 29. The lithium battery device according to item 19 of the scope of patent application, wherein the elongated separator film can be glued to fix the battery cell. 30 · —A method for manufacturing a lithium battery, which is composed of a separator and a plurality of polar plates arranged and combined, and the separator is a long strip, which includes a first film surface and a second film surface. And a bent end, the first film. The surface is arranged at the appropriate increasing interval from the bent end and has the same polarity. Page 17 550846 6. A plurality of polar plates with a scope of patent application, and the second film surface is provided with a plurality of opposite polar plates in a corresponding manner from the second plate, so that the isolation film has Two layers of different polar plates are sequentially folded in the direction of the first polar plate on the second membrane surface in the direction of the first polar plate on the second membrane surface to complete the clock. Batteries are assembled in stacks. 31. The method for manufacturing a lithium battery as described in item 30 of the scope of the patent application, wherein the last two sheets of the first-layer homopolar electrode arranged in a row can be coated with active material on one side. β Page 18