WO2004055924A1 - 非水電解質電池の外装ケースとその製造方法 - Google Patents
非水電解質電池の外装ケースとその製造方法 Download PDFInfo
- Publication number
- WO2004055924A1 WO2004055924A1 PCT/JP2003/016175 JP0316175W WO2004055924A1 WO 2004055924 A1 WO2004055924 A1 WO 2004055924A1 JP 0316175 W JP0316175 W JP 0316175W WO 2004055924 A1 WO2004055924 A1 WO 2004055924A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- outer peripheral
- electrolyte battery
- case
- peripheral frame
- outer case
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49108—Electric battery cell making
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49108—Electric battery cell making
- Y10T29/4911—Electric battery cell making including sealing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49108—Electric battery cell making
- Y10T29/49114—Electric battery cell making including adhesively bonding
Definitions
- the present invention relates to an external case for externally mounting a nonaqueous electrolyte battery main body packaged with an aluminum laminated film or the like, and a method for manufacturing the same. More specifically, an outer case of a non-aqueous electrolyte battery in which a non-aqueous electrolyte battery element is packaged with a synthetic resin thin case body or a synthetic resin frame member integrally fixed to the outer periphery of a film-like thin plate, and its manufacture. About the method. Background art
- metal cans such as steel cans, aluminum cans, etc. for lithium-ion battery exteriors
- polymer battery bodies wrapped with aluminum laminate films need to be further exteriorized to protect them from falling, external impact, etc.
- This packaging method includes a method in which the battery body is hermetically covered with a case-like material such as an aluminum plate or plastic, and a method in which a thermoplastic resin is injection-molded on the outer surface of the battery body to cover and form a package. It has been known.
- a heat-shrinkable tube made of polyvinyl chloride or the like is used as a heat-shrinkable synthetic resin for covering a battery.
- a heat-shrinkable tube is also known as a heat-shrinkable tube.
- a stretched tube made of a mixed composition containing an olefin-based ionomer resin as a main component (see, for example, JP-A-11-170365).
- the conventional exterior method does not solve all demand requirements, and still has many problems.
- thin batteries are required as much as possible, and batteries that can meet this requirement have appeared. If this battery is covered with a thin heat-shrinkable tube, some parts may wrinkle, and there is a problem in terms of reliability in mass-producing a stable quality product.
- Injection molding is excellent in mass productivity, but in conventional injection molding, there is a limit to the flow due to the flow of the molten resin, and if the thickness is reduced, the flow becomes worse.
- the outer case of the lithium ion polymer secondary battery is required to have a stable strength even though it is thin and lightweight.
- a method of manufacturing a thin-walled molded product for housing electronic parts in which a thin-walled portion is formed of a film and a thick-walled portion is formed by injection molding (Japanese Patent Application Laid-Open No. 2002-280350). No. 7)
- this thin molded article does not completely cover the outer surface, it cannot be used for the above-mentioned battery exterior. Disclosure of the invention
- the present invention has been made based on such a technical background, and achieves the following objects.
- An object of the present invention is to realize a very thin exterior by forming the side surface of a non-aqueous electrolyte battery case by a synthetic resin film-like sheet material or injection molding, and to realize a non-aqueous electrolyte which is stable in strength and stable.
- Another object of the present invention is to provide an outer case for a non-aqueous electrolyte battery which is suitable for mass production by an injection molding method with high productivity and is easy to manufacture, and a method for manufacturing the same.
- Still another object of the present invention is to provide an outer case for a non-aqueous electrolyte battery and a method for manufacturing the same, which can form an excellently designed exterior.
- the advantage of the present invention is that the outer case is made thin because the case main body and the cover having different shapes from each other are formed by joining the two molded products having the same shape, and this joint is integrally formed as a step structure. And mechanical strength can be secured.
- Another advantage of the present invention is that it is possible to improve capacity volume efficiency and capacity weight efficiency as a battery pack.
- Another advantage of the present invention is that an injection molding method capable of mass production without a complicated method of manufacturing an outer case can be employed.
- Another advantage of the present invention is that, since a part of the outer case can be formed by injection molding, the degree of freedom in shape is expanded, and a product having excellent design and sensitivity can be obtained.
- the case body outer peripheral frame (9) and the cover (1) are characterized by comprising a joint portion for opposing and integrally joining the outer peripheral frame (10).
- the film shape means a thin film, a thin plate, a sheet shape, and does not necessarily mean a film.
- the outer case of the non-aqueous electrolyte battery according to the second aspect of the present invention is the outer case of the non-aqueous electrolyte battery according to the first aspect of the present invention, wherein the bonding portion includes the case body outer peripheral frame (9) and the cover outer peripheral frame (1 0) is characterized by having positioning means (9a, 10a) for relatively positioning.
- the outer case of the nonaqueous electrolyte battery according to the third aspect of the present invention is the outer case of the nonaqueous electrolyte battery according to the second aspect of the present invention.
- a first step portion (9a) having a stepped cross-sectional structure is formed in the outer peripheral frame (9) of the case body, and the outer peripheral frame (10) of the cover is formed.
- a second step portion (10a) having a stepped cross-sectional structure is formed in the first step portion, and the first step portion (9a) and the second step portion (10a) are fitted to face each other. It is characterized by being integrally joined.
- the outer case of the nonaqueous electrolyte battery according to the fourth aspect of the present invention is the outer case of the nonaqueous electrolyte battery according to the first or second aspect of the present invention.
- the case body (4a) is characterized in that a terminal window (3), which is a through hole penetrating therethrough so as to be able to contact an input / output terminal of the nonaqueous electrolyte battery, is formed.
- the outer case of the nonaqueous electrolyte battery according to the fifth aspect of the present invention is the outer case of the nonaqueous electrolyte battery according to the third aspect of the present invention.
- the first step portion (9a) and the second step portion (10a) are characterized in that they have surfaces having different heights.
- the method for producing an outer case of a nonaqueous electrolyte battery according to the sixth aspect of the present invention is the outer case of the nonaqueous electrolyte battery according to the first aspect,
- the case body (4a) is molded by injection molding with an injection mold, the side plate (4c) is inserted into the injection mold, and a synthetic resin is injected into the outer peripheral edge of the side plate (4c). Then, the cover outer peripheral frame (10) is integrally fixed to form the cover (4b),
- the outer case (4) is manufactured by facing the case body outer peripheral frame (9) and the cover outer peripheral frame (10) and joining them together.
- the fixing is performed by heat fusion of the cover outer peripheral frame (10) in the injection mold with a molten resin, and the bonding is performed by ultrasonic welding.
- the method for manufacturing an outer case of a nonaqueous electrolyte battery according to the eighth aspect of the present invention is the method for manufacturing an outer case of a nonaqueous electrolyte battery according to the seventh aspect of the present invention.
- the case outer peripheral frame (9) and / or the cover outer peripheral frame (10) for the ultrasonic welding are formed with a welded portion (22) serving as a projection for the joining.
- a first side plate (44e) made of a synthetic resin in the form of a film and covering a side wider than the other side of the nonaqueous electrolyte battery;
- a second side plate (44c) made of a synthetic resin in the form of a film and covering a side surface facing the wide side surface of the nonaqueous electrolyte battery;
- the first side plate (44e) is made of synthetic resin and fixed integrally to the outer peripheral edge of the first side plate (44e).
- a joining portion for joining the first outer peripheral frame body (44f) and the second outer peripheral frame body (44d) in opposition to each other;
- the outer case of the nonaqueous electrolyte battery according to the tenth aspect of the present invention is the outer case of the nonaqueous electrolyte battery according to the ninth aspect,
- the joint has positioning means (49a) for relatively positioning the first outer peripheral frame (44f) and the second outer peripheral frame (44d). I do.
- the outer case of the nonaqueous electrolyte battery of the present invention 11 is the outer case of the nonaqueous electrolyte battery according to the present invention 10,
- the positioning means (49a) includes a concave portion (49a) for fitting and positioning with each other, and a convex portion inserted into the concave portion (49a), the first outer peripheral frame (44f) and The second outer peripheral frame (44d) is formed on the second outer peripheral frame (44d).
- the outer case of the nonaqueous electrolyte battery of the present invention 12 is the outer case of the nonaqueous electrolyte battery according to the present invention 9,
- the first outer peripheral frame (44f) and / or the second outer peripheral frame (44d) have terminal windows (43) that are through holes penetrated so as to be able to contact input / output terminals of the nonaqueous electrolyte battery. ) Are formed.
- the method for manufacturing an outer case of a nonaqueous electrolyte battery according to Invention 13 is a method for manufacturing an outer case of a nonaqueous electrolyte battery according to Invention 9.
- the first side plate (44e) is inserted into an injection mold, and synthetic resin is injected into the outer peripheral edge of the first side plate (44e) to integrate the first outer peripheral frame (44f). To form the first case body (44a)
- the second side plate (44c) is inserted into an injection mold, and synthetic resin is injected into the outer peripheral edge of the second side plate (44c) to integrally fix the second outer peripheral frame (44d).
- synthetic resin is injected into the outer peripheral edge of the second side plate (44c) to integrally fix the second outer peripheral frame (44d).
- the first case (44a) and the second case (44b) are opposed to each other, and the first outer frame (44f) and the second outer frame (44d) are joined together. It is characterized by making it.
- the method for manufacturing an outer case of a nonaqueous electrolyte battery of the present invention 14 is a method for manufacturing an outer case of a nonaqueous electrolyte battery according to the present invention 13,
- the fixing is characterized in that the first outer peripheral frame and the second outer peripheral frame are heat-sealed with a molten resin in an injection molding die, and the joining is performed by ultrasonic welding.
- the method for producing an outer case of a nonaqueous electrolyte battery of the present invention 15 is the method for producing an outer case of a nonaqueous electrolyte battery according to the present invention 14,
- the first outer peripheral frame (44f) and / or the second outer peripheral frame (44d) are provided with a welding portion (22
- the non-aqueous electrolyte battery referred to in the present invention means a battery containing a non-aqueous electrolyte material in the electrolyte.
- the non-aqueous electrolyte material includes an electrolyte solution, a polymer gel electrolyte, a solid electrolyte, a polymer electrolyte, a molten salt electrolyte, and the like.
- the batteries include not only secondary batteries but also primary batteries. Batteries containing a non-aqueous electrolyte material include a lithium ion battery, a lithium ion secondary battery, and a lithium ion polymer battery.
- FIG. 1 is an external view showing a lithium ion polymer secondary battery.
- FIG. 2 is an explanatory diagram showing a state in which a lithium ion polymer secondary battery is disassembled. ⁇
- FIG. 3 is a sectional view taken along line XX of FIG.
- FIG. 4 is a sectional view taken along the line Y--Y of FIG.
- FIG. 5 is a cross-sectional view of the injection mold when molding the cover.
- FIG. 6 is a cross-sectional view showing a state where the injection mold is closed.
- FIG. 7 is a partially enlarged view of the outer peripheral frame of the cover in the injection mold.
- FIG. 8 is a cross-sectional view showing a state where molten resin is injected into the cavity of the outer peripheral frame.
- FIG. 9 is a partial cross-sectional view of the outer case after bonding.
- FIG. 10 is a cross-sectional view showing a state where the cover is joined to the case body by ultrasonic welding.
- FIG. 11 is an example of another shape of the thin plate material forming the side surface.
- FIG. 12 shows the second embodiment, and is a cross-sectional view showing a state where molten resin is injected into the cavity of the outer peripheral frame.
- FIG. 13 shows the second embodiment and is a partial cross-sectional view showing the cover after molding.
- FIG. 14 is a cross-sectional view showing a cross section of a thermoforming die for vacuum forming according to the third embodiment.
- FIG. 15 is a cross-sectional view showing a state where the injection molding die of the third embodiment is closed.
- FIG. 16 is a cross-sectional view of the cover after injection molding according to the third embodiment.
- FIG. 17 is a cross-sectional view showing a state where the injection molding die of the fourth embodiment is closed.
- FIG. 18 is a partially enlarged view of the injection mold of the fourth embodiment.
- FIG. 19 is a partially enlarged view of the cover after injection molding according to the fourth embodiment.
- FIG. 20 is a partially enlarged view of the cover after injection molding according to the fifth embodiment.
- FIG. 21 is a partially enlarged view of the cover after injection molding according to the sixth embodiment.
- FIG. 22 is a cross-sectional view of an injection mold when molding a cover in the seventh embodiment.
- FIG. 23 is a cross-sectional view showing a state where the injection molding die is closed in the seventh embodiment.
- FIG. 24 is an external view showing a lithium ion polymer secondary battery of another shape.
- FIG. 25 is an explanatory view showing a state where the lithium ion polymer secondary battery of FIG. 24 is disassembled.
- FIG. 1 is an external view of a lithium ion polymer secondary battery 1 to which the present invention is applied
- FIG. 2 is an exploded view of the lithium ion polymer secondary battery 1 disassembled
- FIG. 3 is a sectional view taken along line X--X of FIG. 1
- FIG. 4 is a sectional view taken along line Y--Y of FIG.
- the lithium ion polymer secondary battery 1 is a battery that can be repeatedly charged and is used as a battery for mobile phones and the like.
- the lithium ion polymer secondary battery 1 is thin and lightweight by replacing the electrolyte with a gel polymer electrolyte. In this example, a thin type (for example, 3.8 mm) is realized so as to be used for a mobile phone and the like.
- the outer case 4 of the lithium ion polymer secondary battery 1 is a case made of a synthetic resin manufactured by a method described later.
- the outer case 4 basically includes a case body 4a and a cover 4b.
- This outer case A terminal window 3 which is three through holes is formed in the case body 4a of FIG. 4, from which current is input and output.
- Figure 2 is an exploded view of a lithium ion polymer secondary battery.
- the battery element 2 is a main body of a lithium ion polymer secondary battery constituting a battery.
- a strip-shaped positive electrode and a strip-shaped negative electrode are laminated via a polymer electrolytic layer and Z or a separator, and are wound in the longitudinal direction. 6 are derived outside.
- the positive electrode has a positive electrode active material layer formed on a belt-shaped positive electrode current collector, a polymer electrolyte layer formed on the positive electrode active material layer, and a polymer electrolyte layer formed on the negative electrode active material layer. Is formed.
- the positive electrode terminal 5 and the negative electrode terminal 6 are joined to a positive electrode current collector and a negative electrode current collector, respectively. The detailed description of these materials and functions is not the gist of the present invention, and thus will be omitted.
- Battery element 2 is packaged with aluminum laminated film 7.
- the aluminum laminated film 7 has a laminated structure made of a polypropylene (PP) layer, an aluminum layer, a polyamide layer, and the like from the inside.
- the aluminum layer prevents moisture from entering the inside of the battery.
- the polypropylene layer prevents deterioration of the polymer electrolyte and serves as a bonding surface of the aluminum laminate film 7. That is, bonding for sealing the aluminum laminated film 7 is performed by heat-welding the polypropylene layers so as to face each other. '
- the polyamide layer is for imparting the strength and gas barrier properties of the aluminum laminated film 7.
- An aluminum laminate film 7 is extended in three directions on the outer periphery of the rectangular shape of the battery element 2. That is, the battery element 2 has a side skirt 7b which is a side position and an upper skirt 7a which is an upper position.
- the side hem 7b and the upper hem 7a have a width between the heat-sealed portions of the polypropylene layers to prevent moisture from entering the inside of the battery element 2 from the outside. It is arranged with.
- the side hem 7b is folded in one direction and stored in the outer case 4 as shown in FIG.
- the positive electrode terminal 5 and the negative electrode terminal 6 which are long in a rectangular shape are bent and laminated on the upper skirt portion 7a. Adjacent to the positive electrode terminal 5 and the negative electrode terminal 6, a protection circuit board 8 laminated therewith is arranged. The terminals on the protection circuit board 8 and the tips of the positive electrode terminal 5 and the negative electrode terminal 6 are connected by spot welding, ultrasonic welding, or the like, and are electrically connected. Since the protection circuit board 8 is housed within the thickness of the battery element 2 together with the upper skirt 7a, the size can be reduced.
- protection circuit board 8 On the protection circuit board 8, protection elements such as a thermostat, a PTC, and a thermal fuse, and / or a protection electronic circuit are mounted (not shown). Also, the protection circuit board 8 is provided with input / output terminals 8a, which are contact terminals for extracting current, and these input / output terminals 8a can contact terminals on the device side inserted through the terminal window 3. It is like that.
- the terminal window 3 in this example is formed on the side surface of the case body 4a, it may be formed on another surface different from the side surface by 90 degrees, for example, on the cover 4b. It may be formed straddling a and the cover 4b.
- the battery element 2 and the protection circuit board 8 are housed in a case body 4a having a half-split structure and covered with a power bar 4b.
- the first embodiment of the present invention relates to such an outer case 4.
- the case body 4a, the cover 4b, and the battery element 2, the protection circuit board 8, and the like are divided into two cases.
- the interior is sandwiched between the body.
- the completed lithium ion polymer secondary battery 1 is a product in which the battery element 2, the protection circuit board 8 and the like are installed, and is integrated with the case body 4a and the cover 4b.
- a product name, a manufacturing company name, and the like are displayed on a surface of the outer case 4 by a label or the like.
- a plastic molded case made of synthetic resin was used as described above. However, this synthetic resin can be manufactured in a complicated shape by injection molding, but there is a limit to its thickness.
- Embodiment 1 of the present invention a thin plate or a combination of a thin plate and injection molding is used, so that a light, thin, and complicated shape can be processed. is there. There is also an advantage that the mold structure is simplified as described later.
- the outer case 4 of the present invention utilizing the characteristics of such materials, has a surface portion 9 b (side surface) formed by injection-molding the case body 4 a containing the lithium ion polymer secondary battery 1 as thinly as possible.
- the outer peripheral edge is a case body outer peripheral frame 9 having a stepped portion 9a, and a cover 4b covered opposite to the case body 4a is made of a synthetic resin film (thin film) thin plate material 4c (side surface).
- a synthetic resin is injected into the outer peripheral edge of the cover to form a cover outer frame 10 having a stepped portion 10a.
- the case main body outer frame 9 of the case body 4a and the cover outer frame of the force bar 4b are used.
- the outer case 4 is thin, but has strength and is easy to manufacture by joining the 10 opposingly via the step portions 9a and 10a.
- a board supporting rib for supporting the protection circuit board 8 is integrally formed at an inner end of the case body 4a as necessary, but is not shown in the present embodiment.
- the lithium ion polymer secondary battery 1 is arranged so as not to be displaced in the case body 4a.
- FIGS. 3 and 4 show the structure of the outer case 4 containing the battery element 2 which is a nonaqueous electrolyte battery.
- the case body 4 ′ a has a surface 9 b for housing the battery element 2 and
- the frame 9 is of an integral structure that has been molded simultaneously by injection molding with the same cavity.
- a step portion 9 a having a stepped cross section is formed in the case body outer peripheral frame 9 of the case body 4 a.
- An undercut portion may be arranged in this portion for fitting, but in this case, injection molding is performed by a known method capable of cutting the mold by dividing the mold or utilizing elastic deformation.
- the surface 9b for housing the battery element 2 is made as thin as possible within the range of mechanical strength required for the outer case 4.
- the surface of the cover 4b covering the battery element 2 is made of a synthetic resin 'film-shaped (0.1 nim in this example) thin plate material 20 (see FIG. 5). 4 c).
- the product specification, trademark, etc. may be printed or labeled on one surface of the thin plate material 20 in advance.
- the material of the thin plate material 20 is a synthetic resin, such as PBT (polybutylene terephthalate), ABS resin, PC (polycarbonate), PET (polyethylene terephthalate), or the like.
- a plate having a thickness of about 0.02 to 0.3 mm is used.
- the rectangular thin plate member 20 is placed on a stationary mold 11 of an injection mold by means of vacuum suction or the like.
- the movable mold 12 is moved to a fixed mold to press the thin plate material 20 to plastically deform it as shown in FIGS.
- This plastic deformation is a box-like shape that extends to the tapered portion 21 on the outer periphery.
- wrinkles may be formed at the corners due to the deformation of the tapered portion 21, since the molten resin forming the cover 1 outer peripheral frame 10 is softened and stretched as described later, There is no problem.
- molten resin is injected into the sprue 13 from the tip of the nozzle of the injection molding machine to form the outer peripheral frame 10, which passes through the runner 14 and the gate 15.
- the cavity 16 forming the outer peripheral frame 10 of the cover is filled.
- the tapered portion 21 extends and comes into close contact with the cavity surface of the movable mold 12 as shown in FIG. 8, and the outer peripheral frame 10 is constructed.
- a resin such as PBT, ABS, PC, or PET, which is the same material as the thin plate material 20 described above, is used. It is preferable that the thermal expansion coefficient is close to that of the aluminum laminate film 7 constituting the battery element 2 and that it has excellent chemical resistance. This is so that even if the battery element 2 thermally contracts due to heat, it can follow this.
- the molten resin and the thin plate material 20 are heat-fused to form the outer peripheral frame 10 of the cover.
- the outer peripheral frame 10 and the thin plate 20 are made of the same resin material.
- injection molding is performed simultaneously on a plurality of products from the viewpoint of improving productivity, so that in practice, a synthetic resin body melted through a runner 14 into a plurality of cavities 16 is used.
- a cavity (not shown) is also injected at the same time, and a plurality of covers 4b are formed at the same time.
- the thickness of the case main body 4 a has a dimension close to the thickness of the battery element 2.
- the terminal window 3 is provided in the case body outer peripheral frame 9 of the case body 4a, and the positioning hole A or the positioning protrusion (cylindrical) is provided at the end of the case body outer peripheral frame 9 of the case body 4a. ) B is formed. If the projecting portion B is provided on the case body outer peripheral frame 9 of the case body 4a, the hole A is provided on the cover outer peripheral frame 10 of the cover 4b. As described above, the outer peripheral frame 9 of the case main body and the outer peripheral frame 10 of the cover are formed on the outer peripheral edges of the case main body 4a and the cover 4b.
- the joint between the case body outer frame 9 and the cover outer frame 10 is a step When the case body 4a and the cover 4b are joined to form 9a and 10a, they are joined via the step portions 9a and 10a.
- FIG. 9 is a partial cross-sectional view showing a state after bonding. As shown in Fig. 9, when a force of F is applied to the cover 4b side, the joint is formed through the steps 9a and 10a by forming the steps 9a and 10a. The other case body 4a also receives the load F.
- the load F is received at the joint at the same time as the contact portion 9c of the step, so that the joining strength is further increased.
- This configuration is a structure that does not damage the outer case 4 such that the cover 4b is peeled off from the case body 4a even when an impact load generated by, for example, dropping is applied.
- a welded portion (Ritsu) 22 is formed along the step portion 10a of the cover outer peripheral frame 10 of the cover 4b as required for ultrasonic welding.
- the welded portion (Ritz) 22 formed at this joint is formed to increase the strength of the joint with the counterpart and to facilitate it.
- the welded portion 22 may be provided at a mating portion on the mating side.
- the positioning of the case body 4a and the cover 4b at the time of joining can be performed by aligning the step portions 9a and 10a of the above-mentioned joining portions.
- the protection circuit board 8 and the protection circuit board 8 are included. It is more preferable because they are positioned with respect to each other.
- FIG. 10 is a cross-sectional view when ultrasonic welding is performed.
- the molded case body 4a is inserted into a predetermined positioning recess 26 of the holder (fixing jig) 25 and positioned.
- the battery element 2 is placed inside the case main body 4a, and the cover 4b is placed facing this on the upper part.
- the tool horn 27 fixed to the tip of the fixed horn 28 driven by the ultrasonic oscillator (not shown) of the ultrasonic welding device descends, and the cover outer peripheral frame 10 of the power bar 4b is moved. Is pressurized.
- the principle of ultrasonic welding is to apply ultrasonic vibration to the joint surface of two synthetic resins and to weld them by frictional heat.
- the ultrasonic vibration energy transmitted to the molded product from the tip of the tool horn 27 becomes Changes to mechanical vibration (called hammering effect) at the joint surface of the two molded products. Then, frictional heat is generated over the entire surface of the welded portion, the portion is melted, and the welded surface is instantaneously welded.
- the welded portion 22 of the case body 4a is a welded portion called a ridge, and when the ultrasonic energy is concentrated on the welded portion 22, the temperature rise of the joining surface of the cover and the outer peripheral frame 10 becomes faster, The welding is complete.
- FIG. 10 is a partial cross-sectional view of the butted portion of the outer case 4 after bonding.
- the drawing of the first embodiment is schematically shown for explanation, but in fact, the thin plate 20 and the cover outer frame 10 are extremely thin and very light.
- the outer case by the outer case 4 of the present invention is strong in strength because the case main body outer frame 9 and the cover outer frame 10 are formed and the step portions 9a and 10a are provided. In addition, it shows an excellent effect in terms of design, and the product, the lithium ion polymer secondary battery 1, can be a durable and high-grade product.
- the thin plate 20 may be formed in a shape that can be bent in advance.
- FIG. 11 is an example of this, showing the original shape of the thin plate 4c forming the side surface.
- the thin plate 4c has cutouts 23 and bending lines 24 at the four corners.
- the notch 23 and the bending line 24 are formed before the insertion into the injection molding die, the thin plate 20a can be easily deformed at the time of molding. Molding becomes possible.
- the outer peripheral portion of the lid member is bent as shown in the figure, but it may be a flat plate without being formed. Next, the embodiment will be described.
- FIG. 12 shows the second embodiment, and is a partial cross-sectional view of an injection mold when molding the cover 4b.
- Embodiment 1 described above after the thin plate member 20 is plastically deformed, the portion of the cover outer peripheral frame 10 is injection-molded.
- Embodiment 2 shown in FIG. 12 has a configuration in which the cover does not protrude to the outer peripheral portion of the outer peripheral frame 10. Therefore, in the cavity 30, the deformation of the thin plate material 20 is practically non-existent.
- the thin sheet material 20 after injection molding is used. Since no trimming is required, the manufacturing is easy.
- FIG. 13 is a partial cross-sectional view of the cover 4b after molding.
- FIG. 14 is a cross-sectional view showing a cross section of a thermoforming mold 25a for vacuum forming.
- a thin sheet material 20b which is a thermoplastic sheet
- the thin sheet material 20b softened by heating with a heater 34 is connected to a vacuum device.
- a vacuum circuit 35 is used to suck and mold the thermoforming mold 25a.
- thermoformed thin plate material 20b is trimmed by a cutting device (not shown).
- the thermoformed and trimmed sheet material 20b is inserted into an injection mold.
- the molten resin is injected, passes through the runner 14 and the gate 15, and is filled into the cavity 36 constituting the cover outer peripheral frame 10 to be molded.
- thermoforming is vacuum forming and has a forming pressure of 1 atm or less, it may be pressure forming (pressure forming) using compressed air of about 2 to 8 atm.
- the fourth embodiment is the same as the third embodiment in that thermoforming is performed before insert into an injection mold.
- thermoforming is performed before insert into an injection mold.
- the outer periphery of the thermoformed thin plate 20c is trimmed by a cutting device (not shown).
- the thermoformed and trimmed sheet material 20 c is cut to generate burrs 31 on the cut surface.
- the burr 31 needs to be subjected to a deburring step for removing the burr 31 before and after ultrasonic welding by the ultrasonic welding device after the above-described injection molding.
- the deburring step can be omitted.
- the outer peripheral portion 32 of the thin plate material 20 c constituting the outer peripheral frame 10 of the cover is cut shorter than the thickness h (FIG. 19) of the outer peripheral frame 10 of the force bar.
- the outer peripheral portion 32 is located in the cavity 33 of the injection molding die shown in FIG. 17, but when the molten resin is injected into the cavity 33, the outer peripheral portion 32 of the thin plate material 20c is formed. It softens and is thermally fused with the molten resin to be integrated (the state shown in Fig. 19). Even if the resin material is different, if the colorant is the same, the boundary between the thin plate material 20c and the cover-outer peripheral frame 10 cannot be distinguished with the naked eye. Therefore, the molding method according to the fourth embodiment has an advantage that trimming work after injection molding is eliminated and the number of steps can be reduced.
- FIG. 20 is an example in which a plurality of step portions 9a and 10a of the joint portion of the case main body 4 of the outer case 4 or the cover 4b are provided in a stepped manner with joint portions having different heights.
- the figure shows an example of the cover 4b, but the same applies to the case body 4a. Since the joining area is increased and the joining force is increased, the force from the outside of the cover outer frame 10 can be received by the case body outer frame 9 of the case body 4a as in the above-described example. This is effective in strengthening the outer case 4.
- FIG. 21 shows an example in which the step portions 9a and 10a of the joint of the outer case 4 are inclined surfaces.
- the figure shows an example of the cover 4b, but the same applies to the case body 4a.
- This slope is a special case of the steps 9a and 10a.
- the external force of the outer peripheral frame 10 can be received also by the outer peripheral frame 9 of the case main body 4a in the same manner as in the above-mentioned example, so that it is effective in strengthening the outer case 4.
- the thin plate material 20 has the entire tapered portion 21 deformed to the outer peripheral frame. Plastic deformation is performed in a larger shape in consideration of fusing.
- the shape of the thin plate 20 is smaller than that of the thin plate 20 shown in FIG.
- a feature of the present embodiment is that the corner 12 a of the movable mold 12 is intentionally formed into an R shape.
- the corner 12 a of the movable mold 12 is intentionally formed into an R shape.
- the fusion resin When the fusion resin is filled from the gate 15 through the sprue 13 and the runner 14, it covers the outer peripheral frame part 2 1 a along the R shape of the corner 12 a of the movable mold 12. And are fused with a step.
- the outer case 4 When the outer case 4 is completed, the outer case 4 becomes a corner with a round shape and a smooth shape.
- the strength of the outer case 4 can be strengthened, and it is effective in giving a smooth and soft image also in design.
- FIG. 24 is an external view of a lithium-ion-polymer secondary battery 40 to which the present invention is applied, and FIG. FIG. 2 shows an exploded view of a disassembled muon / polymer primary battery 40.
- the case body 4a has an integral structure in which the surface portion 9b for accommodating the battery element 2 and the case body outer peripheral frame 9 are simultaneously molded with the same cavities by injection molding.
- Lithium ion / polymer secondary battery 40 shown in Figs. 24 and 25 The 40th outer case 44 is integrally joined to the first case body 44a and the second case body 44b with a half-split structure. It is the structure which did.
- the first case body 44a and the second case body 44b are manufactured by almost the same manufacturing method as the case cover 4a of the first to eighth embodiments described above. The description of the method will be omitted because it is redundant.
- the first side plate 44e of the first case main body 44a is a thin film made of a synthetic resin as described above, and has a small thickness.
- a first outer peripheral frame 44f made of synthetic resin is formed by injection molding on the outer peripheral edge of the first side plate 44e by the above-described method, and is integrally fixed in a mold.
- the second case body 44b is formed of a film-shaped second side plate 44c made of synthetic resin, and a second outer peripheral frame 44 made of synthetic resin on the outer peripheral edge of the second side plate 44c.
- d is integrally formed by injection molding.
- the first outer peripheral frame 44 f and the second outer peripheral frame 44 d are opposed and integrally joined by means of ultrasonic welding, adhesive or the like.
- a terminal case 43 as three through holes is formed in the first case body 44a of the outer case 40, from which current is input and output.
- Substrate support ribs 49, positioning holes 49a and the like are formed in the second case body 44b. Since the positioning pins of the second case body 44b are inserted into the positioning holes 49a during assembly, the accuracy of assembling the first case body 44a and the second case body 44b is high.
- the battery element 42, the protection circuit board 48, the positive electrode terminal 45, the negative electrode terminal 46, and the like have substantially the same structure and function as those of the aforementioned lithium ion polymer secondary battery 1, and a description thereof will be omitted. [Other embodiments]
- the thin plate 20 is disposed as an outer skin on the outer side of the outer peripheral frame.
- the thin plate 20 is not necessarily disposed outside the outer peripheral frame, but is disposed on the inner side. They may be arranged.
- the above-described embodiment of the outer case of the nonaqueous electrolyte battery of the present invention was applied to a polymer battery packaged with an aluminum laminate film.
- the exterior case of the present invention can also be applied to the exterior of a metal case such as a steel can or an aluminum can that is externally mounted on a lithium ion battery.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Battery Mounting, Suspending (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/515,316 US20060068281A1 (en) | 2002-12-17 | 2002-12-17 | Outer case for non-aqueous electrolyte battery and method of producing the same |
KR10-2004-7019091A KR20050012752A (ko) | 2002-12-17 | 2003-12-17 | 비수전해질전지의 외장케이스와 그 제조방법 |
JP2005502496A JPWO2004055924A1 (ja) | 2002-12-17 | 2003-12-17 | 非水電解質電池の外装ケースとその製造方法 |
AU2003289397A AU2003289397A1 (en) | 2002-12-17 | 2003-12-17 | Outer case for non-aqueous electrolyte battery and method of producing the same |
US12/707,356 US8057555B2 (en) | 2002-12-17 | 2010-02-17 | Outer casing of non-aqueous electrolyte battery and production method therefor |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002365773 | 2002-12-17 | ||
JP2002-365773 | 2002-12-17 | ||
JP2003-342769 | 2003-10-01 | ||
JP2003342769 | 2003-10-01 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10515316 A-371-Of-International | 2003-12-17 | ||
US12/707,356 Division US8057555B2 (en) | 2002-12-17 | 2010-02-17 | Outer casing of non-aqueous electrolyte battery and production method therefor |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004055924A1 true WO2004055924A1 (ja) | 2004-07-01 |
Family
ID=32599274
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/016175 WO2004055924A1 (ja) | 2002-12-17 | 2003-12-17 | 非水電解質電池の外装ケースとその製造方法 |
Country Status (5)
Country | Link |
---|---|
US (2) | US20060068281A1 (ja) |
JP (1) | JPWO2004055924A1 (ja) |
KR (1) | KR20050012752A (ja) |
AU (1) | AU2003289397A1 (ja) |
WO (1) | WO2004055924A1 (ja) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007037591A1 (en) * | 2005-09-28 | 2007-04-05 | Lg Chem, Ltd. | Apparatus for manufacturing secondary battery |
JP2008529237A (ja) * | 2005-03-25 | 2008-07-31 | エルジー・ケム・リミテッド | 難燃剤接着性部材を有する小型バッテリーパック |
JP2010274463A (ja) * | 2009-05-27 | 2010-12-09 | Kasai Kogyo Co Ltd | 多色成形品の成形方法、および成形装置 |
US8778529B2 (en) * | 2004-11-29 | 2014-07-15 | Samsung Sdi Co., Ltd. | Lithium secondary battery |
CN104134766A (zh) * | 2013-05-31 | 2014-11-05 | 中航锂电(洛阳)有限公司 | 锂电池、其电芯保持架和盖板及其盖板与壳体的焊接方法 |
US9023507B2 (en) | 2009-06-01 | 2015-05-05 | Gs Yuasa International, Ltd. | Battery assembly and method of manufacturing the same |
US9748536B2 (en) | 2013-08-05 | 2017-08-29 | Samsung Sdi Co., Ltd. | Battery pack |
KR20190048592A (ko) * | 2017-10-31 | 2019-05-09 | 주식회사 엘지화학 | 사출 성형된 전지케이스를 포함하는 이차전지 |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004008569A1 (de) * | 2004-02-19 | 2005-09-01 | Dbt Automation Gmbh | Eigensichere Batteriestromversorgung für den untertägigen Bergbau |
US8450004B2 (en) * | 2004-02-19 | 2013-05-28 | Caterpillar Global Mining Europe Gmbh | Intrinsically-safe battery power supply for underground mining |
KR100601519B1 (ko) * | 2004-06-22 | 2006-07-19 | 삼성에스디아이 주식회사 | 파우치형 리튬 폴리머 전지 및 그 제조 방법 |
KR100811875B1 (ko) | 2006-08-14 | 2008-03-10 | 스웨이 무 왕 | 바깥 케이스 제조방법 |
KR101384919B1 (ko) * | 2007-09-12 | 2014-04-14 | 삼성에스디아이 주식회사 | 이차전지 |
DE102007043660A1 (de) * | 2007-09-13 | 2009-03-26 | Biotronik Crm Patent Ag | Batteriebetriebenes Gerät, insbesondere implantierbares medizinelektronisches Gerät |
KR100922469B1 (ko) | 2007-09-21 | 2009-10-21 | 삼성에스디아이 주식회사 | 배터리 팩 |
DE102008059946B4 (de) | 2008-12-02 | 2013-02-28 | Daimler Ag | Einzellzelle einer Batterie, Batterie mit einer Mehrzahl der Einzelzellen und Verfahren zur Herstellung eines Rahmens für die Einzelzelle |
JP4985671B2 (ja) * | 2009-02-09 | 2012-07-25 | ソニー株式会社 | 電池パック |
JP5063646B2 (ja) * | 2009-07-31 | 2012-10-31 | パナソニック株式会社 | 電池パック用ケース、その製造方法、電池パック及びその製造方法 |
KR101122904B1 (ko) * | 2009-12-18 | 2012-03-20 | 삼성에스디아이 주식회사 | 배터리 팩 |
EP2360755A1 (de) * | 2010-02-16 | 2011-08-24 | Marlafin AG | Energieversorgungseinheit für ein elektrisches Gerät |
TWI398978B (zh) * | 2010-06-25 | 2013-06-11 | Simplo Technology Co Ltd | 電池外殼的製造方法 |
KR101269939B1 (ko) * | 2010-08-09 | 2013-05-31 | 주식회사 엘지화학 | 볼록부 구조를 포함하는 이차전지 |
JP5575035B2 (ja) * | 2011-03-29 | 2014-08-20 | 株式会社神戸製鋼所 | 自動車のバッテリーフレーム構造 |
CN103427051A (zh) * | 2012-05-18 | 2013-12-04 | 神讯电脑(昆山)有限公司 | 用于电子装置的电池壳及其制造方法 |
KR101981255B1 (ko) * | 2012-01-16 | 2019-05-22 | 에스케이이노베이션 주식회사 | 프레임을 갖는 배터리 셀 및 그 제조 방법 |
KR20140025132A (ko) * | 2012-08-21 | 2014-03-04 | 삼성에스디아이 주식회사 | 배터리 팩 |
KR20140109696A (ko) * | 2013-03-06 | 2014-09-16 | 삼성에스디아이 주식회사 | 이차 전지 팩 |
KR101499035B1 (ko) | 2013-08-05 | 2015-03-05 | (주) 대은글로벌솔루션 | 식기 세척기용 세척볼 케이스 |
US10205140B2 (en) * | 2014-02-19 | 2019-02-12 | Delta Electronics, Inc. | Cell and manufacture method thereof |
KR101776885B1 (ko) * | 2014-09-25 | 2017-09-08 | 주식회사 엘지화학 | 둘 이상의 케이스 부재들을 포함하는 각형 전지셀 |
JP6564188B2 (ja) * | 2015-01-09 | 2019-08-21 | 昭和電工パッケージング株式会社 | 蓄電デバイス用外装体 |
KR101872308B1 (ko) * | 2015-04-15 | 2018-06-29 | 주식회사 엘지화학 | 핫 멜팅 고정 구조를 이용한 내장형 전지팩의 제조방법 및 이를 사용하여 제조되는 전지팩 |
CN114421061A (zh) * | 2016-04-06 | 2022-04-29 | 大日本印刷株式会社 | 电池用包装材料、其制造方法和电池 |
ES2762116T3 (es) * | 2017-03-01 | 2020-05-22 | Guangdong Oppo Mobile Telecommunications Corp Ltd | Conjunto de carcasa, dispositivo electrónico y teléfono móvil que tienen el mismo |
JP2018156784A (ja) * | 2017-03-16 | 2018-10-04 | 株式会社Gsユアサ | 蓄電素子 |
KR102599481B1 (ko) | 2018-08-14 | 2023-11-08 | 삼성전자주식회사 | 배터리 접착 구조 및 이를 포함하는 전자 장치 |
KR102652459B1 (ko) * | 2021-12-30 | 2024-03-28 | 주식회사 유라코퍼레이션 | 버스바 지지 구조 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000323110A (ja) * | 1999-05-14 | 2000-11-24 | Kyocera Corp | バッテリーパック及び該バッテリーパックを用いた携帯機器 |
JP2001093495A (ja) * | 1999-07-19 | 2001-04-06 | Toshiba Battery Co Ltd | 電池パック |
JP2001093497A (ja) * | 1999-07-19 | 2001-04-06 | Toshiba Battery Co Ltd | 扁平電池の収容ケース及びそれを用いた電池パック |
JP2001319633A (ja) * | 2000-05-10 | 2001-11-16 | Toshiba Battery Co Ltd | 電池パック |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3430845A (en) * | 1967-11-27 | 1969-03-04 | Lion Fat Oil Co Ltd | Sealed cuboid container utilizing a sheet of synthetic resin film for packing powder or fine particles and its fabricating method |
EP1995819B1 (en) * | 1998-09-11 | 2011-07-13 | Panasonic Corporation | Battery pack with protective circuit |
-
2002
- 2002-12-17 US US10/515,316 patent/US20060068281A1/en not_active Abandoned
-
2003
- 2003-12-17 WO PCT/JP2003/016175 patent/WO2004055924A1/ja active Application Filing
- 2003-12-17 AU AU2003289397A patent/AU2003289397A1/en not_active Abandoned
- 2003-12-17 KR KR10-2004-7019091A patent/KR20050012752A/ko active IP Right Grant
- 2003-12-17 JP JP2005502496A patent/JPWO2004055924A1/ja active Pending
-
2010
- 2010-02-17 US US12/707,356 patent/US8057555B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000323110A (ja) * | 1999-05-14 | 2000-11-24 | Kyocera Corp | バッテリーパック及び該バッテリーパックを用いた携帯機器 |
JP2001093495A (ja) * | 1999-07-19 | 2001-04-06 | Toshiba Battery Co Ltd | 電池パック |
JP2001093497A (ja) * | 1999-07-19 | 2001-04-06 | Toshiba Battery Co Ltd | 扁平電池の収容ケース及びそれを用いた電池パック |
JP2001319633A (ja) * | 2000-05-10 | 2001-11-16 | Toshiba Battery Co Ltd | 電池パック |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8778529B2 (en) * | 2004-11-29 | 2014-07-15 | Samsung Sdi Co., Ltd. | Lithium secondary battery |
JP2008529237A (ja) * | 2005-03-25 | 2008-07-31 | エルジー・ケム・リミテッド | 難燃剤接着性部材を有する小型バッテリーパック |
WO2007037591A1 (en) * | 2005-09-28 | 2007-04-05 | Lg Chem, Ltd. | Apparatus for manufacturing secondary battery |
JP2010274463A (ja) * | 2009-05-27 | 2010-12-09 | Kasai Kogyo Co Ltd | 多色成形品の成形方法、および成形装置 |
US9023507B2 (en) | 2009-06-01 | 2015-05-05 | Gs Yuasa International, Ltd. | Battery assembly and method of manufacturing the same |
CN104134766A (zh) * | 2013-05-31 | 2014-11-05 | 中航锂电(洛阳)有限公司 | 锂电池、其电芯保持架和盖板及其盖板与壳体的焊接方法 |
US9748536B2 (en) | 2013-08-05 | 2017-08-29 | Samsung Sdi Co., Ltd. | Battery pack |
KR20190048592A (ko) * | 2017-10-31 | 2019-05-09 | 주식회사 엘지화학 | 사출 성형된 전지케이스를 포함하는 이차전지 |
KR102334141B1 (ko) * | 2017-10-31 | 2021-12-02 | 주식회사 엘지에너지솔루션 | 사출 성형된 전지케이스를 포함하는 이차전지 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2004055924A1 (ja) | 2006-04-20 |
AU2003289397A1 (en) | 2004-07-09 |
US20100162558A1 (en) | 2010-07-01 |
US8057555B2 (en) | 2011-11-15 |
US20060068281A1 (en) | 2006-03-30 |
AU2003289397A8 (en) | 2004-07-09 |
KR20050012752A (ko) | 2005-02-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2004055924A1 (ja) | 非水電解質電池の外装ケースとその製造方法 | |
EP1889309B1 (en) | Secondary battery of novel structure and battery pack having the same | |
JP5068544B2 (ja) | 保護回路基板を含む一体化タイプのキャップ組立品及びこれを含む二次電池 | |
KR100877816B1 (ko) | 안전성이 향상된 전지팩 | |
JP6068212B2 (ja) | 薄型電池および組電池 | |
JP4916722B2 (ja) | 二次電池 | |
JP5484426B2 (ja) | 電池モジュールおよび電池ユニット | |
JP2013502672A (ja) | フレームを備えるガルバニ電池及びこれを製造する方法 | |
JP4687052B2 (ja) | シート材型電池の製造方法及びシート材型電池 | |
US10553908B2 (en) | Method of manufacturing a laminated power storage element | |
JP2003272569A (ja) | リチュームイオン二次電池ケースとその製造方法 | |
US5300125A (en) | Method of bonding a battery package | |
JP2006294351A (ja) | フィルム外装電気デバイスの製造方法 | |
JP2008218196A (ja) | 非水電解質二次電池および非水電解質二次電池の製造方法 | |
JP4723708B2 (ja) | 電池パック及びその製造方法 | |
JP2006156161A (ja) | 密閉型電池 | |
JP4016217B2 (ja) | 電池の製造方法 | |
JP2000123807A (ja) | 電池パック | |
JP2003282047A (ja) | 電流遮断素子とこの電流遮断素子を内蔵するパック電池 | |
JP2002170530A (ja) | 鉛蓄電池外殻部材の熱溶着方法 | |
KR101818629B1 (ko) | 리드 웰딩 용이성이 향상된 모형셀 및 그 제조방법 | |
JP7446202B2 (ja) | 電池および電池の製造方法 | |
JP2003331798A (ja) | 電極体を封止する外装材フィルムおよび外装材フィルムのシール方法 | |
JPH08255600A (ja) | 二次電池の電池パック | |
JP4293512B2 (ja) | 密閉型電池 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2005502496 Country of ref document: JP |
|
ENP | Entry into the national phase |
Ref document number: 2006068281 Country of ref document: US Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10515316 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020047019091 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 20038A05905 Country of ref document: CN |
|
WWP | Wipo information: published in national office |
Ref document number: 1020047019091 Country of ref document: KR |
|
122 | Ep: pct application non-entry in european phase | ||
WWP | Wipo information: published in national office |
Ref document number: 10515316 Country of ref document: US |