TWI260101B - The arrangement of the interlaced electrodes of an improved battery core and the manufacturing method - Google Patents

Abstract

This invention discloses an improved battery core with interlaced arrangement electrodes and the manufacturing method thereof. A plurality of anode plates and cathode plates are separately interlaced up and down, not overlapped, and arranged on the upper and lower surface of at least one isolation film. Then the isolation film is repeatedly folded to cause the anode plates and cathode plates to be separately interlaced to form a battery core, so as the assembly efficiency can be increased and the anode electrodes and cathode electrodes can be precisely located. This invention can simplify the manufacturing process of a battery core and the size of the manufactured battery core can be effectively reduced. This method can increase the density of energy and improve many disadvantages of a traditional battery core.

Description

1260101 Case No. 94104832 月 修正 五 发明 发明 发明 发明 发明 发明 、 、 、 、 、 、 、 、 、 、 、 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 [Prior Art] With the development of modern technology, various digital electronic products such as mobile phones, portable audio and video players, photographic equipment and portable personal computers have been born with the advancement of human electronic technology, and the battery has The advantage of being able to carry energy with you is extremely useful for digital electronic products. 0 The manufacturing method of the battery core can be mainly divided into a winding type and a folding type. In the winding type, please refer to FIG. 1 , which is a positive electrode plate 2 and a negative electrode plate of a metal foil as a substrate. 4, and two long strip-shaped separators 6, 8 are wound to form a battery core 10, and the battery core 10 is made by the positive electrode plate 2 and the negative electrode plate 4 and the separators 6, 8 Different materials are used to wind the long strips between the phases, so that the current path increases and the internal resistance of the battery increases, and the winding process is easily deviated to form a misalignment. Therefore, a winding device with relatively precise and tension control is required to be implemented, which does not conform to The economic benefits of large battery manufacturing. Furthermore, in addition to the winding type of the battery cell, the currently used battery core has an embodiment in which the battery core is stacked by stacking the positive electrode plate and the negative electrode plate, as shown in Figures 2 and 3, which includes The two positive plates 1 2, 14 and the negative plate 1 6 are provided with two separators 18 between the positive plates 1 2, 14 and the negative plates 16 and are integrally stacked and then thermocompression bonded. Such a battery which is stacked and hot pressed by a two-part turtle film 18 - a negative electrode plate 16 and two positive electrode plates 1 2, 1 4

Page 5 1260101 _ Case No. 94104832_年月日日__ V. Invention Description (2) Core 2 0 production method, due to the large number of alignment sheets, the use of the grid, and the hot pressing process, the alignment and the plate The problem of burrs causes the positive electrode plate 1 2,. 1 4 and the negative electrode plate 16 to have a very high short-circuit probability, which leads to a decrease in the yield of the battery core 20, and a winding speed in the manufacturing speed due to the push-and-push method. Slow, so it is difficult to achieve competitive commoditization benefits. Accordingly, the present invention has been made in view of the above problems, and an improved battery cell in which electrodes are alternately arranged and a method of manufacturing the same are proposed to solve the above problems. _ [Summary of the Invention] The main object of the present invention is to provide a battery cell in which the electrodes are alternately arranged and a manufacturing method thereof, which are arranged by using a plurality of positive plates and a plurality of negative plates, respectively, which are staggered and overlapped. It is disposed on the upper and lower surfaces of at least one of the separators to achieve the advantages of increased assembly efficiency and positive positioning of the positive and negative electrodes. Another object of the present invention is to provide a battery cell with a staggered arrangement of electrodes and a manufacturing method thereof, which can provide an adhesive which is soluble in an electrolyte, and can improve the adhesion of a conventional battery core. The undulating cell surface caused by the splicing agent. Still another object of the present invention is to provide an improved battery cell in which electrodes are alternately arranged and a method of manufacturing the same, which can improve production efficiency and produce good products, thereby achieving the advantages of high production efficiency and high energy efficiency of the battery core. . A further object of the present invention is to provide a modified battery cell in which electrodes are alternately arranged and a method of manufacturing the same, which can simplify the manufacturing process of the battery cell, and the battery core can be effectively reduced in size and energy density.

Page 6 1260101 _ Case No. 94104832_年月日日__ V. Description of invention (3) Degree. Another object of the present invention is to provide an improved battery cell in which the electrodes are alternately arranged and a method of manufacturing the same, which can uniformly press the electrode plates in the battery cells to improve battery life and performance. In order to achieve the above object, the present invention provides an improved battery cell in which electrodes are alternately arranged, which is composed of at least one separator, an insulating material, a positive electrode plate and a plurality of negative plates, and a plurality of positive plates. And a plurality of negative plates, which are arranged on the upper and lower surfaces of the isolation film in a staggered and non-overlapping manner, and the separation film is repeatedly folded, so that the negative plates of the positive plates are separated by a separator and are respectively arranged in a staggered manner. a battery core, wherein the insulating material covers the battery core, the packaged bag houses the battery core, and the electrolyte is located in the package bag; and the method for manufacturing the improved battery cell in which the electrodes are staggered in the present invention includes the following steps Providing at least one separator, and then placing a plurality of positive plates and a plurality of negative plates in an upper and lower interlaced manner without overlapping, on the upper and lower surfaces of the separator, and then repeatedly folding the separator to make these The positive electrode plate and the negative electrode plate are alternately arranged into a battery core, and the battery core is covered with an insulating material, and the battery core is placed in a package bag, and The electrolyte is placed in the package, and the assembly of the battery core can be completed. The purpose, technical contents, features, and merits of the present invention will become more apparent from the detailed description of the embodiments and the accompanying drawings. [Embodiment] ‘ · With the variety and function of portable digital electronic products,

Page 7 1260101

It has become an indispensable necessity for digital life---Case number 941048^ V. Invention description (4) The importance of the battery is increasing ασ ° The present invention is a method of manufacture, such as the second and second negative insulating materials 30, The structure can be explained in more detail, and the arrangement is referred to the first plate 24 and the partition surface, and the negative separator 2 is used to set the positive electrode plate 2 2 and the positive electrode plate 2 and the negative electrode plate 2 4 . There is no effect, and the agent (not shown in the figure is an improved battery cell in which the electrodes are alternately arranged, and the drawings thereof are shown in Figs. 4, 5, and 6, and the present invention includes a plurality of positive plates 24 and a separator 26; A battery core 28, a package bag 32, and an electrolyte (not shown) are provided for the specific implementation process and drawing of the battery core of the present invention. 4 is not 'first prepared a number of positive plates 2 2, a number of negative separation membranes 2 6, a positive plate 2 2 is placed on a separator plate 26 of a separator plate 26 is placed on the other surface of the separator 26 On the top, the positive and negative plates 22, 24 are isolated to form an insulating state, and the negative plates 24 are respectively turned over. Moreover, the upper and lower surfaces of the exhaust separator 26 are not overlapped, and as long as the requirement for insulating the electrode plate 24 can be achieved, the positive electrode plate 2, the negative order can be exchanged, and the manufacturing and performance of the battery cell 28 are eliminated. The positive electrode plate 22 and the negative electrode plate 24 are adhered to the separator 26 by a second adhesive. Next, as shown in FIG. 5, the positive electrode plate 2, the negative electrode plate 24, and the separator 26 of the crucible edge are repeatedly folded. First, the positive electrode plate 2 2 is centered on one end of the negative electrode plate 24, Rotate the separator counterclockwise to "fold in the direction of the negative plate 24, and then take a negative plate 24" with one end of the positive plate '22 as the axis, and rotate the separator 26 to the positive plate 2 in the clockwise direction. The stack is separated, and the separator is folded in a stepwise manner to make the positive electrode plate 2 2 and the negative electrode plate 2 4

Page 8 1260101 ---- Case No. 94104832__ Year Month 曰 Amendment 5, Invention Description (5) Staggered into battery cells 28, that is, rotating folded separator 26 and the positive plate 2 2 is located in the negative plate 24 Then, the folded separator 26 is further rotated to make the negative electrode plate 4 4 π on the positive electrode plate 22, and the positive electrode plate 22 and the negative electrode plate 24 are separated from each other by the separator 26 and sequentially staggered to form a battery cell. 2, forming a state as shown in Fig. 6, and applying a uniform pressure on both sides of the battery core 28 by tape-fixing on the four sides of the battery core 28, so that the positive electrode plate 22 and the negative electrode The alignment of the board 24 is more accurate, and the order and direction of the positive pole 24 stack can be adjusted according to the implementer's preference; the battery cell 28 invented has no effect on the performance, and then the insulating material 3 is used to evenly pack the battery core 2 8 'Insulation material 3 〇 can be a separator or a tape. Referring to the figure shown in Figure 7, 'Battery; ^ 2 8 is placed in the package bag 3 2, the package bag 32 is an aluminum foil bag, and then an electrolyte is injected into the electrolyte (not shown). In the package bag 32, the assembly of the battery core 28 is completed, wherein the adhesive is mutually dissolved in the electrolyte, and the adhesive does not chemically react with the positive electrode plate 22, the negative electrode plate 24 and the electrolyte, and the invention The three sides of the electrode plate 22 and the negative electrode plate 24 are not covered by the separator 26, and the separator 26 has an adhesive adhered to one side thereof, which can reduce the resistance of fluid such as electrolyte and the like, and is favorable for the positive electrode plate 22 and the negative electrode plate. 24 and the dryness of the adhesive and the uniform distribution of the electrolyte, as shown in Figure 4. ♦ Next, the present invention has another assembly method, in which two sheets of the separators provided with the staggered positive electrode plate and the negative electrode plate are overlapped with opposite polarities, and the two separator films are repeatedly folded. Referring to Fig. 8, the assembly is such that the negative electrode plate 24 and a positive electrode plate "and/the positive electrode plate 2 2 and a negative electrode plate 38 are bonded together, that is, the overlapping sides of opposite polarities are adopted.

Page 9 V. Inventive Note (6), the positive electrode plate 2, the negative electrode plate 24, and the separator 4 for insulating the positive electrode plate 36 and the negative electrode plate 38 are mounted, wherein the positive electrode plate 2 2 There is a plate 42 between the negative plates 24, and a gap 44 between the positive plates 36 and the negative plates on the separator 40, and then the two are heavy, and the order of folding is repeated. Direction, and thus the thickness of the gap, the negative plate 24 and the positive plate 36 and the plate 38 can be overlapped and positioned, and the implementation of the folding will not be described again, and the two films are folded once. : | In order to effectively increase the assembly speed, and at the same time improve the overall manufacturing of the electrode staggered arrangement of the electrode of the present invention and the accurate positioning of the positive electrode plate 22 and the negative electrode plate 24, the conventional technology stack is improved. The thicker and thicker the positive and negative plates are not aligned, the tension on the film 26 is greatly reduced, and the near-zero tension is prone to wrinkles. ? Prepare IV „ ^ ,, from the plate 22, the negative plate 24 and the isolation to non-uniform, the degree of shrinkage of the film 26 after assembly is small and safer = know the technology to heat at high temperature, ▲ easy Contact with each other leads to a short circuit. , : The invention is combined with the invention. The electrode is connected to at least one surface by using a plurality of positive plates and a plurality of negatively erroneous and non-repetitive arrangements to increase assembly. The efficiency and the positive and negative electrodes can be determined by the separator 26 after being combined with the thickness of the positively-packed positive electrode plate. The same as the assembly of the production, the manufacture and reduction will occur and the present invention The average temperature of the heating and pressing is reduced by the positive gap between the three poles of the operation between the 2 and the negative, in the way of the efficiency. The method can be used to isolate the membrane isolation membrane to make the membrane 26 not contact, but The negative electrode type battery core and the electrode plate are respectively separated from the upper and lower sides of the film by the superior 1260101 _ case number 94104832_ _ _ _ _ 5, the invention description (7) point, and the present invention provides a soluble electrolyte Adhesive, which can be improved The shortcomings of the undulating cell surface caused by the adhesive during assembly of the battery core provide higher applicability to meet the battery requirements of today's digital electronic products such as mobile phones, digital cameras, and portable digital electronic products. And the present invention is only a preferred embodiment of the present invention, and is not intended to limit the scope of the invention, so that the shapes, structures, features, and spirits described in the scope of the present application are Equivalent variations or modifications are intended to be included within the scope of the invention.

Page 11 1260101 _ Case No. 94104832_Year of the month __ Simple description of the drawing [Simple description of the drawing] Figure 1 is a schematic diagram of the implementation of the conventional battery core manufacturing. Figure 2 is a schematic view of another embodiment of a conventional battery cell fabrication. Figure 3 is a schematic view of the structure of the side of Figure 2. Fig. 4 is a schematic perspective view showing the structure of the battery cell of the present invention. Fig. 5 is a schematic view showing an embodiment of the battery core of the present invention to be folded. Fig. -6 is a schematic view showing the implementation of the folding of the battery core of the present invention. Fig. 7 is a schematic view showing an embodiment of the injection of the electrolyte into the battery core of the present invention. The drawings and drawings show another operation mode of the assembly mode of the present invention. & Main component symbol description] f Positive plate 4 Negative plate 6 Isolation film 8 Isolation film 10 Cell 12 Positive plate 14 Positive plate 16 Negative plate 18 Isolation film _ Battery core 2 2 Positive plate. 2 4 Negative plate 2 4" Negative Board 2 6 isolation membrane

Page 12 1260101 Case No. 94104832 _η 修正 Correction Simple description 28 Battery core 30 Insulation material -32 Package bag 34 Injection tube 36 Positive plate 38 Negative plate 4 α Isolation film 42 Clearance 4 4 Clearance •

Page 13

Claims (1)

1260101 Doc. No. 94104832 JE_a. 曰 Amendment 6. A method for manufacturing an improved battery cell in which the application of the patent range is alternately arranged. The method includes the following steps of providing at least a plurality of positively arranged repeating folding steps, a separator and a number δ and a direct separation film. Arranged into a battery core plate manner, the negative electrode plates are respectively staggered above and below and do not overlap the upper and lower surfaces of the separator; respectively, so that the positive electrode plates and the negative electrode plates are respectively staggered by using the absolute 4β to pack the battery If you apply for a special battery core, you can apply for a special battery core, such as applying for a battery core or a tape. If you apply for a battery core, you can apply for a special battery core. The manufacturing interchange is manufactured by Lifan manufacturing material covering the battery core; and into a package bag, and an electrolyte is placed in the seal to complete assembly of the battery core. The improved method of staggered arrangement of electrodes according to Item 1, wherein the positive electrode plate and the negative electrode plate are arranged in an improved manner in which the electrodes are arranged in a staggered manner according to Item 1, wherein the package bag is an aluminum foil. bag. The improved method of the electrode staggered arrangement according to Item 1, wherein the insulating material is an improved manufacturing method of the electrode staggered arrangement according to Item 1 of the separator, wherein the plurality of positive plates and the insulating plate are A plurality of negative electrodes are adhered to the separator by an adhesive. 5th modified electrode staggered configuration, wherein the adhesive is soluble in the electrolyte Page 14 1260101 _ Case No. 94104832_年月日日__ VI. Patent Application No. 7 - Improved battery cell with staggered electrode arrangement, including: at least one isolation film; several positive plates and several negative plates The upper and lower surfaces of the separator are arranged in a staggered and non-overlapping manner, and the separator is repeatedly folded, so that the positive and negative plates are separated by a separator to form a battery. a core material; an insulating material 5 covering the battery core, a package bag accommodating the battery core covered with the insulating material; and an electrolyte solution in the package bag. P. The improved battery cell of the electrode staggered configuration as described in claim 7 wherein the arrangement of the positive electrode plate and the negative electrode plate is interchangeable. 9. The improved battery cell of the electrode staggered configuration according to claim 7, wherein the package bag is an aluminum foil bag. An improved battery cell in which the electrodes are staggered as described in claim 7, wherein the insulating material may be a separator or a tape. 11. The improved battery cell of the electrode staggered configuration according to claim 7, wherein the plurality of positive plates and the plurality of negative plates are adhered to the separator by an adhesive. 1 2 . The improved electrode staggered configuration of claim 11, wherein the adhesive is soluble in the electrolyte. 1 3 · An improved type of battery staggered arrangement as described in claim 7 of the patent application, wherein the battery core can be provided with two positive plates Page 15 1260101 _ Case No. 94104832_Yearly __ Sixth, the scope of application for the patent The separator is arranged in a staggered arrangement with the negative plates. 11111 Page 16 1260101 _ Case No. 94104832_Year of the Moon _ Six, the designated representative map (1), the representative of the case is: Figure 5 (two), the representative symbol of the case symbol is a simple description: -2 2 positive plate 2 4 Negative plate 2 6 Isolation film第3页