CN203760554U - Terminal lead and electrochemical device with same - Google Patents
Terminal lead and electrochemical device with same Download PDFInfo
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- CN203760554U CN203760554U CN201320479295.6U CN201320479295U CN203760554U CN 203760554 U CN203760554 U CN 203760554U CN 201320479295 U CN201320479295 U CN 201320479295U CN 203760554 U CN203760554 U CN 203760554U
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- Prior art keywords
- terminal lead
- width
- metal base
- exterior body
- face coat
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- 239000002345 surface coating layer Substances 0.000 abstract 3
- 238000000034 method Methods 0.000 description 37
- 238000004519 manufacturing process Methods 0.000 description 23
- 229910052744 lithium Inorganic materials 0.000 description 19
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 18
- 239000003792 electrolyte Substances 0.000 description 12
- 239000007788 liquid Substances 0.000 description 12
- 230000000873 masking effect Effects 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 9
- -1 polyethylene terephthalate Polymers 0.000 description 9
- 229920001661 Chitosan Polymers 0.000 description 8
- 238000009740 moulding (composite fabrication) Methods 0.000 description 7
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- 239000010949 copper Substances 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
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- 238000012545 processing Methods 0.000 description 4
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- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
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- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 235000009854 Cucurbita moschata Nutrition 0.000 description 2
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- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 2
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- 239000005030 aluminium foil Substances 0.000 description 2
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- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
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- 239000004700 high-density polyethylene Substances 0.000 description 2
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- 239000010936 titanium Substances 0.000 description 2
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- 229910052726 zirconium Inorganic materials 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
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- 239000004925 Acrylic resin Substances 0.000 description 1
- 229910013458 LiC6 Inorganic materials 0.000 description 1
- 229910032387 LiCoO2 Inorganic materials 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
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- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
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- 125000003976 glyceryl group Chemical group [H]C([*])([H])C(O[H])([H])C(O[H])([H])[H] 0.000 description 1
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- 229910001416 lithium ion Inorganic materials 0.000 description 1
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- 239000007784 solid electrolyte Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
- H01M50/50—Current conducting connections for cells or batteries
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/74—Terminals, e.g. extensions of current collectors
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/172—Arrangements of electric connectors penetrating the casing
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/10—Multiple hybrid or EDL capacitors, e.g. arrays or modules
- H01G11/12—Stacked hybrid or EDL capacitors
-
- 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
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion 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
- 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
- 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
- Y02E60/13—Energy storage using capacitors
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model provides a terminal lead and an electrochemical device with the same. The terminal lead (1) comprises an inner end part (1a) at the inner side of an outer container body (9) for containing an electrochemical element (6), an outer end part (1b) at the outer side of the outer container body (9), and a plate-shaped metal base material (2). In addition, two surfaces (2p and 2p), in the thickness direction of the metal base material (2), of the terminal lead (1) are provided with two surface coating layers (3). The coating amount of each of two end parts (3a and 3a) in the width direction of surface coating layers (3) on two end parts (2pa and 2pa) in the width direction of the two surfaces (2p and 2p) in the thickness direction of the metal base material (2) is higher than that of each middle part (3b) in the width direction of a surface coating layer (3) on each middle part (2pb) in the width direction of the two surfaces (2p and 2p) in the thickness direction of the metal base material (2).
Description
The Japan patent application Patent of the application based on filing an application on August 7th, 2012 advocated priority No. 2012-174828, and its disclosure directly forms the application's a part.
Technical field
The utility model relate to terminal lead, this terminal lead manufacture method, there is the electrochemical device (for example: lithium rechargeable battery, double electric layer capacitor) of this terminal lead.
Background technology
As electrochemical device, in lithium rechargeable battery for example, comprise electrode (collector body) and electrolyte (electrolyte) is accommodated in exterior body at interior cell device, and the opening edge of the mutual correspondence of exterior body is the welding by heat-sealing each other, thus cell device is sealing into by (for example,, with reference to patent documentation 1～6) in exterior body.
The exterior film that forms exterior body is comprised of multilayer, and its skin consists of polyethylene terephthalate (PET) or nylon, and the internal layer contacting with electrolyte consists of hot-melt resin.And in order to prevent that moisture from infiltrating from outside and electrolyte evaporates from inside, the intermediate layer of exterior film is formed by metal formings such as aluminium foil or SUS paper tinsels.The outer field object of exterior film is to protect the metal forming in intermediate layer, plays the effect of external force such as do not punctured of protection intermediate layer.
The terminal lead with the battery that is accommodated in the cell device in exterior body, conventionally there is the plate-shape metal base material as base material, and there is integratedly the inner end of the inner side that is configured in exterior body and to the outside of exterior body, draw and be configured in the outer end in the outside of exterior body from the sealing of exterior body.Although the part corresponding with sealing exterior body in terminal lead is by sealing on the hot-melt resin of internal layer of the exterior film that is bonded on exterior body, but there is following situation: Width two vertex angle parts during sealing in the thickness direction two sides of terminal lead puncture the internal layer of exterior film and contact with intermediate layer, thereby electrical short occurs.
In addition, in order to improve the fitting tightly property of terminal lead and exterior body, in terminal lead in the past, exist as face coat by the situation (for example, with reference to patent documentation 4,6) of the shitosan layers that formation contains shitosan (chitosan) or derivatives thereof on the whole surface of metal base such as rubbing method.
Prior art document
Patent documentation 1: Japanese Patent Publication 59-38708 communique
Patent documentation 2: Japanese kokai publication hei 10-302756 communique
Patent documentation 3: TOHKEMY 2010-165481 communique
Patent documentation 4: TOHKEMY 2010-170979 communique
Patent documentation 5: TOHKEMY 2010-245000 communique
Patent documentation 6: TOHKEMY 2006-202577 communique
Utility model content
But the resistivity of such face coat is compared very large with the resistivity of the metal base of terminal lead.Therefore, at face coat, with uniform coating weight, be formed in the whole lip-deep situation of metal base of terminal lead, when the connected components such as the collector body of cell device or bus are electrically connected to this terminal lead, can produce that the face coat being folded between terminal lead and connected component becomes resistance section and the problem that causes resistance between the two to increase.
On the other hand, if reduce resistance and reduce the coating weight of face coat, Width two vertex angle parts in the thickness direction two sides of terminal lead puncture the internal layer of exterior film and contact with intermediate layer, the possibility that electrical short occurs raises.
The utility model is researched and developed in view of above-mentioned technical background, its object is the electrochemical device that the manufacture method of a kind of terminal lead, this terminal lead is provided and has this terminal lead, can prevent from being accommodated in electrolyte in exterior body etc. is contained fluid and spills to the outside of exterior body, and, can by and connected component between resistance suppress littlely, and, can prevent electrical short.
The utility model provides following means.
[1] terminal lead, has: the inner end that is configured in the inner side of the exterior body of taking in electrochemical element; With the outer end that is configured in the outside of exterior body, and there is the plate-shape metal base material as base material, it is characterized in that,
On the thickness direction two sides of metal base, be provided with face coat, and,
The coating weight of the face coat at Width both ends is more than the coating weight of the face coat of Width pars intermedia, wherein, the face coat at Width both ends refers to the face coat on the Width both ends in the thickness direction two sides that is configured in metal base, and the face coat of Width pars intermedia refers to the face coat on the Width pars intermedia in the thickness direction two sides that is configured in metal base.
[2] terminal lead as described in preceding paragraph 1, wherein, this terminal lead is by sealing direct welding on exterior body.
[3] terminal lead as described in preceding paragraph 1, wherein, this terminal lead by heat-sealing across insulation with resin molding and welding on exterior body.
[4] terminal lead as described in preceding paragraph 3, wherein, insulation is installed with stationary state with resin molding.
[5] terminal lead as described in any one in preceding paragraph 1～4, wherein, face coat contains the one kind or two or more compound of selecting in the group from consisting of shitosan and chitosan derivatives.
[6] manufacture method for terminal lead, this terminal lead has: the inner end that is configured in the inner side of the exterior body of taking in electrochemical element; With the outer end that is configured in the outside of exterior body, and there is the plate-shape metal base material as base material, it is characterized in that,
Comprise cut-out operation, at this, cut off in operation, the bar material that is provided with the terminal lead of face coat on the thickness direction two sides of the bar material at metal base is cut into specific length,
In the bar material of terminal lead, be configured in the coating weight at Width both ends of the face coat on the Width both ends in the thickness direction two sides of bar material of metal base more than the coating weight of the Width pars intermedia of the face coat on the Width pars intermedia being configured in the thickness direction two sides of bar material of metal base.
[7] manufacture method of the terminal lead described in preceding paragraph 6, wherein, face coat contains the one kind or two or more compound of selecting in the group from consisting of shitosan and chitosan derivatives.
[8] electrochemical device, has the terminal lead described in any one in preceding paragraph 1～5.
Utility model effect
Effect of the present utility model is below described.
In the terminal lead of preceding paragraph [1], by the thickness direction two sides at metal base, face coat being set, improved the fitting tightly property of terminal lead and exterior body, therefore, can prevent from being accommodated in electrolyte in exterior body etc. and be contained fluid and spill.And, due to the coating weight at the Width both ends of the face coat on the Width both ends that are configured in the thickness direction two sides of metal base of the terminal lead coating weight more than the Width pars intermedia of the face coat on the Width pars intermedia being configured in the thickness direction two sides of metal base of terminal lead, so can the resistance between terminal lead and connected component be suppressed littlely, and, can also prevent the generation of electrical short.
In the terminal lead of preceding paragraph [2], by by the direct welding of terminal lead on exterior body, can by the untapped amount of resin molding, correspondingly suppress the manufacturing cost of electrochemical device with insulation.
In the terminal lead of preceding paragraph [3], by by terminal lead, across insulation, with resin molding, welding, on exterior body, can prevent the generation of electrical short reliably.
In the terminal lead of preceding paragraph [4], by with stationary state, insulation being arranged on terminal lead with resin molding, can easily carry out the welding of exterior body and terminal lead.
In the terminal lead of preceding paragraph [5], because face coat contains the one kind or two or more compound of selecting in the group from consisting of shitosan and chitosan derivatives, so can improve reliably the fitting tightly property of resin molding for terminal lead and exterior body or insulation.
In the manufacture method of the terminal lead of preceding paragraph [6], can obtain efficiently the terminal lead described in any one in preceding paragraph [1]～[5].
In the manufacture method of the terminal lead of preceding paragraph [7], because face coat contains the one kind or two or more compound of selecting in the group from consisting of shitosan and chitosan derivatives, so can improve reliably the fitting tightly property of resin molding for terminal lead and exterior body or insulation.
In the electrochemical device of preceding paragraph [8], can access the effect identical with the effect of the terminal lead described in any one in above-mentioned [1]～[5].
Accompanying drawing explanation
Fig. 1 is the vertical view of the lithium rechargeable battery as electrochemical device with the terminal lead of the 1st execution mode of the present utility model.
Fig. 2 is the X1-X1 line cutaway view in Fig. 1.
Fig. 3 is the X2-X2 line cutaway view in Fig. 1.
Fig. 4 is the stereogram of terminal lead.
Fig. 5 is the vertical view of terminal lead.
Fig. 6 is the Y1-Y1 line cutaway view in Fig. 5.
Fig. 7 is the Y2-Y2 line cutaway view in Fig. 5.
Fig. 8 is the stereogram of bar material of the metal base of terminal lead.
Fig. 9 is the vertical view of the bar material of terminal lead.
Figure 10 means the cutaway view lithium rechargeable battery as electrochemical device, corresponding with Fig. 3 of the terminal lead with the 2nd execution mode of the present utility model.
Figure 11 is the stereogram with the terminal lead of resin molding with insulation that Figure 10 is used.
Description of reference numerals
1: terminal lead
1A: side of the positive electrode terminal lead
1B: negative side terminal lead
1a: the inner end of terminal lead
1b: the outer end of terminal lead
1Z: the bar material of terminal lead
2: metal base
2p, 2p: the thickness direction two sides of metal base
2pa, 2pa: the Width both ends in the thickness direction two sides of metal base
2pb: the Width pars intermedia in the thickness direction two sides of metal base
2pe, 2pe: Width two vertex angle parts in the thickness direction two sides of metal base
2s, 2s: the Width two sides of metal base
2Z: the bar material of metal base
3: face coat
3a, 3a: the Width both ends of face coat
3b: the Width pars intermedia of face coat
4: insulation resin molding
6: cell device (electrochemical element)
7: collector body (connected component)
9: exterior body
9x: the sealing of exterior body
10: lithium rechargeable battery (electrochemical device)
15: bus (connected component)
Embodiment
Next, with reference to accompanying drawing, some execution modes of the present utility model are being described below.
Fig. 1～9th, the key diagram of the terminal lead of the 1st execution mode of the present utility model.
As shown in Figures 1 to 3, the terminal lead 1 of this 1st execution mode is the parts that arrange as side of the positive electrode terminal lead 1A and/or negative side terminal lead 1B on the lithium rechargeable battery 10 as electrochemical device.In the lithium rechargeable battery 10 of this 1st execution mode, terminal lead 1 is respectively used to side of the positive electrode terminal lead 1A and negative side terminal lead 1B.
As shown in Figure 2, in the lithium rechargeable battery 10 of this 1st execution mode, in its exterior body 9, take in the cell device 6 as the electrochemical element of electrochemical device.
Exterior body 9 forms with the identical exterior film by sandwich construction of exterior body in the past.Exterior film is the internal layer 9a of configuration in the inner part, the outer 9c of the configuration in the outer part of exterior body 9 by exterior body 9 and be configured in the mutual layered laminate of intermediate layer 9b between internal layer 9a and outer 9c and engage and form for example.
Internal layer 9a is the layer contacting with the electrolyte of cell device 6, by thermal welding (thermoplastic) property resin bed, is formed.Intermediate layer 9b is used for preventing that moisture from infiltrating from outside and electrolyte evaporates from inside, by metal levels such as metal formings, is formed.The main purpose of outer 9c is to protect intermediate layer 9b, protects the external force such as intermediate layer 9b is not punctured, and by synthetic resin layer, is formed.
Hot-melt resin layer (internal layer 9a) forms such as the material by selecting from the such vistanex of high density polyethylene (HDPE), low density polyethylene (LDPE), straight chain shape low density polyethylene (LDPE), the ionomer of polyethylene kind, polypropylene etc.Synthetic resin layer (outer 9c) is such as being formed by polyamide such as polyester, nylon such as polyethylene terephthalate (PET).Metal level (intermediate layer 9b) is formed by metal formings such as aluminium foil or SUS paper tinsels.
Cell device 6 so that paper tinsel shape positive electrode collector 7A and paper tinsel shape negative electrode collector 7B across separator (separator) 8 and/or the stacked mode of electrolyte (solid electrolyte, gel electrolyte), form.On the surface of positive electrode collector 7A, be combined with positive electrode (LiCoO2 etc.), on the surface of negative electrode collector 7B, be combined with negative material (LiC6 etc.).In addition, in the present embodiment, the positive electrode collector 7A of cell device 6 and negative electrode collector 7B are corresponding to inner side connected component.This inner side connected component is electrically connected to the inner end 1a of terminal lead 1A, the 1B of corresponding utmost point side respectively in the inner side of exterior body 9.
And this cell device 6 is accommodated in exterior body 9, and the welding by heat-sealing each other of the opening edge of the mutual correspondence of exterior body 9, cell device 6 is enclosed in exterior body 9 with liquid-tight state thus.In addition,, in Fig. 1, the part shown in the getting ready of exterior body 9 represents by sealing the sealing 9x of the exterior body 9 forming.
As shown in Figure 2, terminal lead 1 has integratedly: the inner end 1a that is configured in the inner side of exterior body 9; Draw to the outside of exterior body 9 with sealing 9x from exterior body 9 and be configured in the outer end 1b in the outside of exterior body 9.The inner end 1a of terminal lead 1 consists of length direction one end of terminal lead 1, and the outer end 1b of terminal lead 1 consists of length direction the other end of terminal lead 1.
And as shown in Fig. 2～7, as base material, terminal lead 1 has the good plate of conductivity (comprising paper tinsel) shape metal base 2.The material of metal base 2 does not limit, and can from various metal species, suitably select.Particularly, in the situation that terminal lead 1 is side of the positive electrode terminal lead 1A, the material of its metal base 2 is aluminum or aluminum alloy etc., and especially expectation is the aluminium alloy of aluminium alloy numbering A1000 series.In the situation that terminal lead 1 is negative side terminal lead 1B, the material of its metal base 2 is oxygen-free copper (JIS (JIS) H3100:C1020) or tough pitch copper (JIS H3100:C1100) etc.In addition, especially expect the thickness direction two sides of metal base 2 and Width two sides to implement in advance chemical conversion processing (for example: chromate gloss finish, non-chromate gloss finish) and/or electrolytic treatments (for example: anodized, electroplating processes).In addition, electroplating processes comprises electroless plating processing.
In Fig. 4, the length dimension L of the metal base 2 of terminal lead 1, width dimensions W and gauge T set for multiple according to the size of lithium rechargeable battery 10, capacity etc., do not limit, for example, set L for 20～70mm, set W for 20～120m, and set T for 0.1～1.0mm.
As shown in Fig. 4～7, on thickness direction two sides 2p, the 2p and Width two sides 2s, 2s of the metal base 2 of terminal lead 1, in entire scope, be formed with respectively face coat 3.On the other hand, in the length direction both ends of the surface of the metal base 2 of terminal lead 1, be on the end face 1e of inner end 1a side of terminal lead 1 and the end face 1e of the outer end 1b side of terminal lead 1, do not form face coat 3.Therefore, metal base 2 is exposed to outside at both ends of the surface 1e, the 1e of terminal lead 1.Reference numeral 2e represents the exposed division of the metal base 2 in each end face 1e of terminal lead 1.
Face coat 3 be main purpose be to improve the fitting tightly property of terminal lead 1 and exterior body 9 and/or improve terminal lead 1 and resin molding for insulation (with reference to the 2nd execution mode described later) fitting tightly property layer.In this 1st execution mode, face coat 3 is layers that main purpose is to improve terminal lead 1 and the fitting tightly property of exterior body 9.
As principal component, face coat 3 contains organic polymer resin (for example: acetate acrylic resin, shitosan class), as required, as adding ingredient, also contains inorganic constituents (for example: chromium, zirconium, titanium, silicon).In this 1st execution mode, face coat 3 contains the shitosan class as organic polymer resin, particularly, as shitosan class, contains the one kind or two or more compound of selecting in the group from consisting of shitosan and chitosan derivatives.As chitosan derivatives, do not limit, can enumerate CMC, cationization shitosan, hydroxyalkyl shitosan, glyceryl shitosan, the salt becoming with the acid of these shitosans etc.Like this, because face coat 3 contains shitosan class, so can improve reliably the fitting tightly property of terminal lead 1 and exterior body 9.The resistivity of face coat 3 is greater than the resistivity of the metal base 2 of terminal lead 1.Formation method (being coating process) about face coat 3 will be described later.
In addition, the thickness of face coat 3 is very little with respect to length dimension L, width dimensions W and the gauge T of the metal base 2 of terminal lead 1.Therefore, the length dimension of terminal lead 1, width dimensions and gauge can be regarded as with length dimension L, width dimensions W and the gauge T of metal base 2 and equate.
As shown in Fig. 4～7 (especially Fig. 6), be configured in the coating weight of Width both ends 3a, 3a of the face coat 3 on Width both ends 2pa, the 2pa in thickness direction two sides 2p, the 2p of metal base 2 of terminal lead 1 more than the coating weight of the Width pars intermedia 3b of the face coat 3 on the Width pars intermedia 2pb being configured in thickness direction two sides 2p, the 2p of metal base 2 of terminal lead 1.In addition, the details about the coating weight of face coat 3 will be described later.
And, in this terminal lead 1, by for making the opening edge heat-sealing that welding is carried out each other of exterior body 9, with the welding each other of the opening edge of exterior body 9 simultaneously, terminal lead 1 is not or not direct welding is on each opening edge of exterior body 9 (particularly, being the internal layer 9a of exterior body 9) via insulation with resin molding.
As shown in Figure 2, in thering is the lithium rechargeable battery 10 of above-mentioned terminal lead 1, collector body 7 (the 7A of each utmost point of cell device 6, 7B) in the inner side of exterior body 9, by engagement means such as ultrasonic bonding, be combined in the terminal lead 1 (1A of corresponding utmost point side separately, on inner end 1a 1B), and become with respect at least one face in the thickness direction two sides of this inner end 1a cover its Width roughly the coincidence status of Zone Full (with reference to the double dot dash line of Fig. 5) thus the collector body 7 (7A of each utmost point of cell device 6, 7B) with the terminal lead 1 (1A of corresponding utmost point side separately, inner end 1a 1B) is electrically connected to.
And, as shown in Figure 2, in this lithium rechargeable battery 10, bus 15,15 outsides at exterior body 9 that anodal and negative pole is used are combined on the outer end 1b of the terminal lead 1 of corresponding utmost point side (1A, 1B) separately by engagement means such as welding, soldering, riveted joints, and become with respect at least one face in the thickness direction two sides of this outer end 1b and cover the roughly coincidence status of Zone Full (with reference to the double dot dash line of Fig. 5) of its Width, thereby bus 15,15 and the outer end 1b electrical connection of the terminal lead 1 of corresponding utmost point side (1A, 1B) separately anodal and that negative pole is used.In addition,, in this 1st execution mode, bus 15 is corresponding to outside connected component.This outside connected component is electrically connected at outside and the terminal lead 1 (particularly, being the outer end 1b of terminal lead 1) of exterior body 9.
In the terminal lead 1 of this 1st execution mode, owing to being provided with face coat 3 on thickness direction two sides 2p, 2p at metal base 2, so can improve the fitting tightly property of terminal lead 1 and exterior body 9, can prevent from being thus accommodated in electrolyte in exterior body 9 etc. and be contained fluid and spill.And, more in entire scope owing to not making to be configured in the coating weight of the face coat 3 on thickness direction two sides 2p, the 2p of metal base 2 of terminal lead 1, but the coating weight that makes the Width pars intermedia 3b of face coat 3 is less than the Width both ends 3a of face coat 3, the coating weight of 3a, thus, can the resistance between terminal lead 1 and connected component (each collector body 7, bus 15) be suppressed littlely.And, due to the coating weight having more of Width both ends 3a, 3a with face coat 3 correspondingly, Width two vertex angle part 2pe, 2pe and the distance between the intermediate layer 9b of exterior body 9 in thickness direction two sides 2p, the 2p of metal base 2 are elongated, so can prevent because two vertex angle part 2pe, 2pe contact the generation of the electrical shorts such as electric leakage that cause with intermediate layer 9b.
At this, especially expectation is, the more region R of coating weight of the face coat 3 in thickness direction two sides 2p, the 2p of the metal base 2 of terminal lead 1 is, Width two vertex angle part 2pe, the 2pe from thickness direction two sides 2p, the 2p of metal base 2 at least extends to respectively 5% the region of the width dimensions W of metal base 2 to Width pars intermedia 2pb side.And, especially expectation, this region R is, Width two vertex angle part 2pe, the 2pe from thickness direction two sides 2p, the 2p of metal base 2 extends to respectively 30% the region of the width dimensions W of metal base 2 to Width pars intermedia 2pb side maximum.By setting regions R in this wise, can reliably the resistance between terminal lead 1 and connected component (each collector body 7, bus 15) be suppressed littlely, and, can prevent reliably the generation of electrical short.
The coating weight of the Width pars intermedia 3b of face coat 3 does not limit, but is especially desirably in 1～500mg/m
2scope in.And, especially expect that the coating weight of Width pars intermedia 3b of coating weight specific surface coating 3 of Width both ends 3a, the 3a of face coat 3 has more 30～100%.By setting in this wise the coating weight of face coat 3, can further prevent reliably spilling of electrolyte, and, can further reliably the resistance between terminal lead 1 and connected component (each collector body 7, bus 15) be suppressed littlely, and, can further prevent reliably the generation of electrical short.
The coating weight that is configured in the face coat 3 on Width two sides 2s, the 2s of metal base 2 of terminal lead 1 does not limit.
Next, in the following best manufacture method that above-mentioned terminal lead 1 is described.
As shown in Figure 8, as the metal base 2 use long ribbon shape metal blankets of terminal lead 1, prepare the bar material 2Z of metal base 2.This bar material 2Z has and the cross sectional shape of metal base 2 and measure-alike cross sectional shape and size, and extends continuously along its length.; it is identical with the width dimensions W of metal base 2 that the width dimensions of this bar material 2Z is set for; and it is identical with the gauge T of metal base 2 that the gauge of bar material 2Z is set for; on the other hand, the length dimension of bar material 2Z is set for and is compared very long with the length dimension L of metal base 2.
Next, face coat 3 is formed in the entire scope of the thickness direction two sides of the bar material 2Z of metal base 2 2p, 2p and Width two sides 2s, 2s.Now, face coat 3 is formed, be configured in the coating weight of Width both ends 3a, 3a of the face coat 3 on Width both ends 2pa, the 2pa in thickness direction two sides 2p, the 2p of bar material 2Z more than the coating weight of the Width pars intermedia 3b of the face coat 3 on the Width pars intermedia 2pb, the 2pb that are configured in thickness direction two sides 2p, the 2p of bar material 2Z.About being especially desirably in the more region R of coating weight of the face coat 3 on thickness direction two sides 2p, the 2p of bar material 2Z of metal base 2, as mentioned above.
By forming face coat 3 like this on thickness direction two sides 2p, the 2p of the bar material 2Z of metal base 2 and Width two sides 2s, 2s, as shown in Figure 9, make the bar material 1Z of terminal lead 1 as terminal lead 1 long ribbon shape blanket.
This face coat 3 can form by the whole bag of tricks, but especially expectation by dip coated method, rolling method (for example: intaglio plate rubbing method, reverse rolling method, kiss-coating method, roll-type scraper for coating method, squash type rubbing method), the rubbing method such as spraying process and forming.Particularly, especially expect that face coat 3 is by being coated on the masking liquid of regulation in the predetermined surface of bar material 2Z of metal base 2 of terminal lead 1 and making its dry formation.As the masking liquid of regulation, expectation is used the organic polymer resin as principal component (for example: ethylene-propylene acid resin, shitosan class) is for example dissolved in, in solvent (: water, organic solvent) and the liquid obtaining.And, as required, can add the inorganic constituents (example: chromium, zirconium, titanium, silicon) as adding ingredient to this masking liquid.As drying means, the general method of utilizing heat to make the solvent composition evaporation in masking liquid of using.As heating means, use and to blow the convective heat transfer of hot blast, the heat conduction that the bar material 2Z of metal base 2 self is heated, the radiant heat transfer by heating such as infrared heaters etc., or use the combination of these methods.
Method as the coating weight of Width both ends 3a, the 3a of the face coat 3 on the Width both ends 2pa, the 2pa that make to be configured in thickness direction two sides 2p, the 2p of bar material 2Z of metal base 2 more than the coating weight of the Width pars intermedia 3b of face coat 3, can enumerate for example following some methods.
First method is, in the entire scope of thickness direction two sides 2p, the 2p of the bar material 2Z of metal base 2 with uniform coating weight coating masking liquid and make it dry, then, only on Width both ends 2pa, the 2pa in the thickness direction two sides of bar material 2Z 2p, 2p, be again coated with masking liquid and make it dry, make thus the coating weight of Width both ends 3a, 3a of face coat 3 relatively more than the coating weight of the Width pars intermedia 3b of face coat 3.
Second method is, in the situation that use intaglio plate rubbing method as the formation method of face coat 3, the shape, the degree of depth, grid etc. that make to be formed on the intaglio plate unit on the side face of gravure roll are different with both ends at the pars intermedia of the side face of intaglio plate unit, thereby increase the Width both ends 3a of face coat 3, the coating weight of 3a.
The third method is, in the situation that use squash type rubbing method as the formation method of face coat 3, make the masking liquid that is arranged on die head front end use the gap of outlet different with both ends at Width pars intermedia, thereby increase the Width both ends 3a of face coat 3, the coating weight of 3a.
As additive method, can enumerate following methods etc.: in the entire scope of thickness direction two sides 2p, the 2p of the bar material 2Z of metal base 2 with uniform coating weight coating masking liquid, then before this masking liquid is dry or in dry run, to the Width pars intermedia 2pb in thickness direction two sides 2p, the 2p of bar material 2Z, blow fiercely high wind, thereby a part of wind drift that is coated on the masking liquid on this Width pars intermedia 2pb, to Width both ends 2pa, 2pa side, is increased to the Width both ends 3a of face coat 3, the coating weight of 3a thus.
Next, by cut off processing or laser cutting processing etc. by the bar material 1Z of terminal lead 1 along its length with given size short strip shape cut off.This operation is called " cut-out operation ".The shearing length of bar material 1Z is now identical with the length dimension L of the metal base 2 of terminal lead 1.In Fig. 9 (Fig. 8), double dot dash line represents the cut-out line of the bar material 1Z (the bar material 2Z of metal base 2) of terminal lead 1.In the present embodiment, bar material 1Z by vertical direction linearity along its length cut off.Thus, make a plurality of terminal leads 1.That is, can obtain a plurality of terminal leads 1 from bar material 1Z.By the bar material 1Z from terminal lead 1 like this, obtain a plurality of terminal leads 1, can manufacture efficiently terminal lead 1.
In the terminal lead 1 obtaining like this, the section 1c of one end side becomes the end face 1e of the inner end 1a side of terminal lead 1, and the section 1c of its other end side becomes the end face 1e of the outer end 1b side of terminal lead 1.That is, length direction both ends of the surface 1e, the 1e of terminal lead 1 consist of section 1c, 1c, and do not form face coat 3 on these both ends of the surface 1e, 1e, and metal base 2 exposes.
According to above order, can manufacture the terminal lead 1 of this 1st execution mode.
In the situation that this terminal lead 1 is installed on exterior body 9, the length direction pars intermedia of terminal lead 1 is configured between the opening edge of the exterior body 9 of taking in cell device 6, next, by heat-sealing, make the opening edge welding each other of exterior body 9.Thus, the direct welding of length direction pars intermedia of terminal lead 1 is on each opening edge of exterior body 9.
In the 2nd execution mode of the present utility model shown in Figure 10 and Figure 11, with the sealing 9x of the exterior body 9 corresponding part of terminal lead 1 in terminal lead 1, be the length direction pars intermedia of terminal lead 1, to cover the state of its complete cycle, be stationary state resin molding 4 for insulation is installed.
In the terminal lead 1 of this 2nd execution mode, face coat 3 is for improving the layer of the fitting tightly property of terminal lead 1 and resin molding 4.And, by the length direction pars intermedia of terminal lead 1, resin molding 4 being installed with stationary state, can prevent reliably for a long time that the electrolyte in exterior body 9 from spilling to outside.
Insulation is identical with resin molding with insulation in the past with resin molding 4, and object is to guarantee the electrical insulating property between terminal lead 1 and the intermediate layer 9b of exterior body 9, by electrical insulating property resins such as polyethylene, polypropylene, is made.
As insulation with resin molding 4 to the installation method of terminal lead 1, can adopt heating resin molding 4 to make its melting and the method based on heat-sealing of welding on terminal lead 1, use binding agent and be bonded in the method based on binding agent on terminal lead 1 etc.In the situation that adopt the installation method based on heat-sealing, can improve reliably aspect the fitting tightly property of terminal lead 1 and resin molding 4, especially expectation insulation with in resin molding 4 at least with the contact-making surface of terminal lead 1 by being formed by the polyethylene of the sour modifications such as maleic acid (being sour modified poly ethylene) or polypropylene (being sour modified polypropene) etc.
And, in this terminal lead 1, by for making the opening edge heat-sealing that welding is carried out each other of exterior body 9, with the welding each other of the opening edge of exterior body 9 simultaneously, terminal lead 1 via insulation with resin molding 4 and welding on each opening edge of exterior body 9 (particularly, being the internal layer 9a of exterior body 9).
In this 2nd execution mode, by making terminal lead 1, via insulation, with resin molding 4, welding, on exterior body 9, can prevent the generation of electrical short reliably.
And, by insulation is arranged on terminal lead 1 with stationary state with resin molding 4, can easily carry out the welding of exterior body 9 and terminal lead 1.
Some execution modes of the present utility model have more than been described, but the utility model is not limited to these execution modes, can carries out various changes.
For example, in the above-described embodiment, when manufacturing terminal lead 1, the bar material 1Z of terminal lead 1 by vertical direction linearity along its length cut off.Yet, in the utility model, the bar material 1Z of terminal lead 1 also can be cut off with other states or shape, for example, also can along inclined direction cut off with respect to its length direction, also can be cut off with various shapes such as circular-arc, wavy, zigzags.Especially expect to cut off can not produce the mode of collapse limit or burr in the cutting portion of bar material 1Z.
In addition, in the above-described embodiment, show technological thought of the present utility model is applicable to as the situation of lithium rechargeable battery 10 and the terminal lead 1 thereof of electrochemical device.Yet in the utility model, technological thought of the present utility model also goes for for example double electric layer capacitor and the terminal lead thereof as electrochemical device, technological thought of the present utility model can also be applicable to other electrochemical devices and terminal lead thereof.
Embodiment
Next, specific embodiment of the utility model and comparative example are shown.
[embodiment]
Manufacture in the following order terminal lead and the positive pole terminal lead for negative pole of embodiment.
The manufacture of terminal lead for negative pole:
Metal base 2 use long ribbon shape metal blankets as negative pole with terminal lead 1B, preparation width is the bar material 2Z of 6cm, the thickness no-oxygen copper plate 2 that is 0.2mm.In the entire scope of the thickness direction two sides of this bar material 2Z 2p, 2p and Width two sides 2s, 2s, implement in advance the Nickel Plating Treatment that thickness is approximately 2 μ m.Next, on the thickness direction two sides of this bar material 2Z 2p, 2p and Width two sides 2s, 2s, by having used the intaglio plate rubbing method of gravure roll, the shitosan class aqueous solution (masking liquid) that coating contains shitosan class as principal component also makes it dry at 200 ℃ of baking temperatures, thus, in the entire scope of the thickness direction two sides of bar material 2Z 2p, 2p and Width two sides 2s, 2s, as face coat, with uniform coating weight, form shitosan layer 3.Next, be only again coated with the shitosan class aqueous solution on Width both ends 2pa, the 2pa in the thickness direction two sides of this bar material 2Z 2p, 2p and make it dry at 200 ℃ of baking temperatures.Thus, the coating weight of Width both ends 3a, 3a that makes to be configured in the shitosan layer 3 on Width both ends 2pa, the 2pa in thickness direction two sides 2p, the 2p of bar material 2Z is relatively more than the coating weight of the Width pars intermedia 3b of shitosan layer 3.The coating weight of the Width pars intermedia 3b of shitosan layer 3 is 10mg/m
2, the coating weight of Width both ends 3a, the 3a of shitosan layer 3 is 15mg/m
2.The more region R of coating weight of the shitosan layer 3 in thickness direction two sides 2p, the 2p of the bar material 2Z of metal base 2 is, Width two vertex angle part 2pe, the 2pe from thickness direction two sides 2p, the 2p of the bar material 2Z of metal base 2 extends to respectively 15% the region of width dimensions W (W=6cm) of the bar material 2Z of metal base 2 to Width pars intermedia 2pb side.In addition, shitosan layer 3 contains the one kind or two or more compound of selecting in the group from consisting of shitosan and chitosan derivatives.Make thus the bar material 1Z of terminal lead 1.
Next, the bar material 1Z of this terminal lead 1 is cut into short strip shape with the length of 5cm along its length.Thus, making length is that 5cm, width are the terminal lead 1 that 6cm, thickness are 0.2mm.Length direction both ends of the surface 1e, the 1e of this terminal lead 1 consist of section 1c, 1c, therefore, do not form shitosan layer 3 on both ends of the surface 1e, 1e, as the no-oxygen copper plate 2 of base material, expose.Next, at the length direction pars intermedia of terminal lead 1, take the state that covers its complete cycle by heat-sealing welding the maleic acid modified polypropene film that to be provided with as insulation be 1cm with the width of resin molding 4.In addition, the width of maleic acid modified polypropene film (resin molding 4 for insulation) is the size along the length direction of terminal lead 1.Thus, make the terminal lead 1B with resin molding 4 with insulation that negative pole is used.
The anodal manufacture with terminal lead:
Metal base 2 use long ribbon shape metal blankets as positive pole with terminal lead 1A, preparation width is the bar material 2Z of the aluminium sheet 2 of 6cm, the thickness A1000 series that is 0.2mm.Then, according to the identical manufacturing sequence of terminal lead 1B for the negative pole with above-described embodiment, make the terminal lead 1A with resin molding 4 with insulation of anodal use.
The manufacture of lithium rechargeable battery:
The negative pole that uses above-described embodiment with and anodal use with insulation, with terminal lead 1B, the 1A of resin molding 4, make lithium rechargeable battery.In addition, when each terminal lead 1A, 1B are fused on exterior body 9, applicable heat seal condition is: 210 ℃ of temperature, moulding pressure 1.5kN, 10 seconds pressing times.This condition compared to common heat seal condition applicable when terminal lead is fused on exterior body (, 170～200 ℃ of temperature, moulding pressure 0.5～1.0kN, 3～5 seconds pressing times) for more easily making the condition of resin molding 4 meltings (that is, easily leaking electricity).But, at this, in order to confirm clearly effect of the present utility model, specially adopt the condition of the common easier melting of resin molding 4 ratio as heat seal condition, the scope of application of the present utility model is not limited to this scope.
[comparative example]
Manufacture in the following order terminal lead and the positive pole terminal lead for negative pole of comparative example.
The manufacture of terminal lead for negative pole:
In thickness direction two sides 2p, the 2p of bar material 2Z of the no-oxygen copper plate 2 as metal base 2 use metal blankets and the entire scope of Width two sides 2s, 2s, with uniform coating weight, form shitosan layer 3, according to the negative pole with above-described embodiment, with the identical manufacturing sequence of terminal lead 1B, make the terminal lead with insulation use resin molding that negative pole is used.The coating weight of shitosan layer 3 is 10mg/m
2.
The manufacture of anodal all terminal leads:
In thickness direction two sides 2p, the 2p of bar material 2Z of the aluminium sheet 2 of the A1000 series as metal base 2 use metal blankets and the entire scope of Width two sides 2s, 2s, with uniform coating weight, form shitosan layer 3, according to the positive pole with above-described embodiment, with the identical manufacturing sequence of terminal lead 1A, make the terminal lead with insulation use resin molding of anodal use.The coating weight of shitosan layer 3 is 10mg/m
2.
The manufacture of lithium rechargeable battery:
The negative pole that uses above-mentioned comparative example with and anodal use with insulation, with the terminal lead of resin molding, make lithium electronics secondary cell.In addition, when each terminal lead 1A, 1B are fused on exterior body 9, applicable heat seal condition is same as the previously described embodiments.
[evaluation]
After respectively to the lithium rechargeable battery charging of the lithium rechargeable battery of above-described embodiment and above-mentioned comparative example, under ambient temperature and moisture environment, keeping is 10, then, by measuring the voltage of each lithium rechargeable battery, evaluates and has or not electric leakage.Its result is shown in table 1.
Table 1
| Initial stage voltage | Voltage after 10 days | Poor | |
| Embodiment | 1.31v | 1.30v | 0.01v |
| Comparative example | 1.31v | 1.25v | 0.06v |
As shown in the Table 1., how not find voltage drop in an embodiment, in contrast, in comparative example, found voltage drop.Infer that its reason is to leak electricity.
In addition, measured respectively resistance between terminal lead 1B when the negative pole of above-described embodiment is electrically connected to the outer end 1b of terminal lead 1B and bus 15 and bus 15 and the terminal lead when negative pole of above-mentioned comparative example is electrically connected to the outer end of terminal lead and bus and the resistance between bus.Its result is, the resistance in the situation of the former (embodiment) is less than the resistance in the situation of the latter's (comparative example).
About in this term used and statement, be considered to be in order to describe, explain to being not intended to limit property, also do not get rid of all equivalent features shown here and feature item that describe, the various distortion within the scope of the utility model claim all allow.
Industrial applicibility
The utility model can be used in as positive terminal lead-in wire and negative terminal and go between and terminal lead, the manufacture method of this terminal lead and the electrochemical device (for example: lithium ion battery, double electric layer capacitor) with this terminal lead of use.
Claims (5)
1. a terminal lead, has: the inner end that is configured in the inner side of the exterior body of taking in electrochemical element; With the outer end that is configured in the outside of exterior body, and there is the plate-shape metal base material as base material, it is characterized in that,
On the thickness direction two sides of metal base, be provided with face coat, and,
The coating weight of the face coat at Width both ends is more than the coating weight of the face coat of Width pars intermedia, wherein, the face coat at Width both ends refers to the face coat on the Width both ends in the thickness direction two sides that is configured in metal base, and the face coat of Width pars intermedia refers to the face coat on the Width pars intermedia in the thickness direction two sides that is configured in metal base.
2. terminal lead as claimed in claim 1, is characterized in that, described terminal lead is by sealing direct welding on exterior body.
3. terminal lead as claimed in claim 1, is characterized in that, described terminal lead by heat-sealing across insulation with resin molding and welding on exterior body.
4. terminal lead as claimed in claim 3, is characterized in that, insulation is installed with stationary state with resin molding.
5. an electrochemical device, has the terminal lead described in any one in claim 1～4.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012174828A JP2014035811A (en) | 2012-08-07 | 2012-08-07 | Terminal lead |
| JP2012-174828 | 2012-08-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203760554U true CN203760554U (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320479295.6U Expired - Fee Related CN203760554U (en) | 2012-08-07 | 2013-08-06 | Terminal lead and electrochemical device with same |
| CN201310343655.4A Pending CN103579574A (en) | 2012-08-07 | 2013-08-06 | Terminal lead, manufacturing method and electrochemical device with the terminal lead |
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| CN201310343655.4A Pending CN103579574A (en) | 2012-08-07 | 2013-08-06 | Terminal lead, manufacturing method and electrochemical device with the terminal lead |
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| Country | Link |
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| JP (1) | JP2014035811A (en) |
| KR (1) | KR20140019753A (en) |
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| CN106784582A (en) * | 2017-02-17 | 2017-05-31 | 湖南格瑞普新能源有限公司 | Suitable for the lithium ion battery and pole piece of big multiplying power discharging |
| KR102655101B1 (en) * | 2018-11-23 | 2024-04-08 | 주식회사 엘지에너지솔루션 | Electrode lead cutting apparatus of battery cell |
| EP3920258A4 (en) | 2019-01-30 | 2022-03-30 | Toppan Printing Co., Ltd. | Outer package material for all-solid-state batteries, and all-solid-state battery using same |
-
2012
- 2012-08-07 JP JP2012174828A patent/JP2014035811A/en active Pending
-
2013
- 2013-08-06 KR KR1020130092978A patent/KR20140019753A/en not_active Application Discontinuation
- 2013-08-06 CN CN201320479295.6U patent/CN203760554U/en not_active Expired - Fee Related
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|---|---|
| CN103579574A (en) | 2014-02-12 |
| KR20140019753A (en) | 2014-02-17 |
| JP2014035811A (en) | 2014-02-24 |
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