CN103904338A - Forming mold for manufacturing terminal electrode part of flow battery and forming manufacturing method - Google Patents
Forming mold for manufacturing terminal electrode part of flow battery and forming manufacturing method Download PDFInfo
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- CN103904338A CN103904338A CN201410131057.5A CN201410131057A CN103904338A CN 103904338 A CN103904338 A CN 103904338A CN 201410131057 A CN201410131057 A CN 201410131057A CN 103904338 A CN103904338 A CN 103904338A
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- lug
- flow battery
- termination electrode
- mould
- cope match
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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
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/88—Processes of manufacture
- H01M4/8875—Methods for shaping the electrode into free-standing bodies, like sheets, films or grids, e.g. moulding, hot-pressing, casting without support, extrusion without support
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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
- H01M50/531—Electrode connections inside a battery casing
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- 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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a forming mold for manufacturing a terminal electrode part of a flow battery and a forming manufacturing method. The forming mold comprises an upper mold plate, a lower mold plate and a lug press block; the lower mold plate is a trough body, the edge of the trough body is provided with an upper mold plate positioning groove and a lug positioning groove, and an open separation groove is arranged in the upper template positioning groove; the upper mold plate is a cover plate, and the edge of the cover plate is provided with a positioning lug which is matched with the upper mold plate positioning groove; the lug press block is matched with the lug positioning groove. The manufacturing method comprises the following steps of covering a galvanic plastic and a current collector copper net by utilizing an insulation plate and a plastic guide frame, so that a lug on the current collector copper net stretches out of the plastic guide frame; placing the lower mold plate of the forming mold, enabling the lug to be inserted into the lug positioning groove of the lower mold plate, tightening the lug by utilizing the lug press block, and covering the upper mold plate of the forming mold; hot pressing by utilizing a hot pressing method to prepare the terminal electrode part of the flow battery. By adopting the forming mold and the forming manufacturing method, the original manufacturing process can be simplified, and the combination strength and reliability of the components can be improved.
Description
Technical field
The present invention relates to a kind of mould and moulding manufacture method of manufacturing flow battery termination electrode parts, belong to flow battery termination electrode manufacturing technology field.
Background technology
At present, flow battery termination electrode parts are made up of termination electrode, plastics water conservancy diversion frame and insulation board, its manufacturing process is generally: first by termination electrode heat pressing process manufacturing side electrode, produce plastics water conservancy diversion frame by injection moulding mode or machining mode, then by modes such as inserted injection moulding, welding or hot pressing, termination electrode is connected with plastics water conservancy diversion frame and insulation board.This processing method need to be passed through multiple working procedure, complex process, and follow-up weld interface easily ftractures, and causes the corrosion of collector electrode; In addition, the electrode that this technique is manufactured, its binding post (being lug) can only be drawn from electrode rear portion, can form stress concentration point at electrode middle part, easily causes electrode cracking seepage, thereby causes battery failure.
Summary of the invention
The object of the invention is to, a kind of mould and moulding manufacture method of manufacturing flow battery termination electrode parts is provided, can simplify original manufacturing process, improve bond strength and reliability between each assembly, make the termination electrode parts seepage not easy to crack of manufacturing.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of mould of manufacturing flow battery termination electrode parts, comprises cope match-plate pattern, lower bolster and lug briquetting; Lower bolster is a cell body, and cell body edge is provided with cope match-plate pattern location notch and lug location notch, is provided with fluting separating tank in cope match-plate pattern location notch; Cope match-plate pattern is a cover plate, and side edge thereof is provided with the chucking lug matching with cope match-plate pattern location notch; Lug briquetting matches with lug location notch, and the lug of termination electrode is fixed in lug location notch by lug briquetting.
In the mould of aforesaid manufacture flow battery termination electrode parts, the each edge lengths of cope match-plate pattern is than the little 1～1.6mm of the each edge lengths of corresponding lower bolster, the flash gap that makes to retain between the upper and lower template of mould 0.5～0.8mm, ensures that unnecessary material can overflow smoothly.
In the mould of aforesaid manufacture flow battery termination electrode parts, if cope match-plate pattern location notch is designed on same central axis, the mould strength in its central axis region can reduce, use in die sinking process especially frequently long-term, warpage or the distortion in the easy generative center axis of cope match-plate pattern region, therefore cope match-plate pattern location notch is made as a pair of relatively and the cell body staggering, to prevent and treat cope match-plate pattern warpage or distortion.
Use aforementioned mould to manufacture a method for flow battery termination electrode parts, comprise the following steps:
S1, clamps current collection copper mesh with two conductive plasticss, after clamping, uses insulation board and plastics water conservancy diversion frame coated, and the lug on current collection copper mesh is stretched out outside plastics water conservancy diversion frame;
S2, after being coated, puts into the lower bolster of mould, and lug is embedded in the lug location notch of lower bolster, and fastening with lug briquetting, then covers the cope match-plate pattern of mould;
S3, adopts hot-press method to suppress mould, makes flow battery termination electrode parts.
In the method for aforesaid manufacture flow battery termination electrode parts, in the time that flow battery is all-vanadium flow battery, plastics water conservancy diversion frame, insulation board are selected PVC material.In the time that flow battery is zinc-bromine bettery, if use the thermal coefficient of expansion of plastics water conservancy diversion frame, insulation board and conductive plastics that conventional HDPE material obtains to differ larger, after linking together by hot pressing or other welding manners, cause seepage thereby easily there is cracking; Therefore, plastics water conservancy diversion frame, insulation board are selected the HDPE material that the coefficient of expansion is close with conductive plastics, thereby have reduced to connect the stress influence between the latter two.
In the method for aforesaid manufacture flow battery termination electrode parts, the carbon series conductive plastics that conductive plastics adopts taking polyethylene as matrix, resistivity is less than 0.8 Ω CM.
In the method for aforesaid manufacture flow battery termination electrode parts, in hot pressing, the cope match-plate pattern of mould, the temperature of lower bolster are 160～190 DEG C; Oil pressure is 40～50MPa; Hot pressing time is 600～1000 seconds; Be 3000～5000 seconds cooling time; Chilling temperature is 20～30 DEG C.
In the method for aforesaid manufacture flow battery termination electrode parts, when hot pressing starts, the mode that adopts unitary mould to vacuumize solves exhausting problem, vacuumizes 150～250 seconds, and vacuum degree is less than 5000Pa.
Compared with prior art, the integrated heat pressing and molding mold of use side electrod assembly of the present invention, make conductive plastics, current collection copper mesh, plastics water conservancy diversion frame and insulation board is disposable is combined into one, simplify original production technology of termination electrode parts, greatly improved bond strength and reliability between each assembly; Current collection copper mesh merges completely in plastics inner, and Multilayer welded structure different from the past has avoided electrolyte to infiltrate electrode, and the problem of corrosion current collection copper mesh is the useful life of extended end electrod assembly, reusable.
In addition, termination electrode parts constituent material is put into after lower bolster, lug is positioned at lug location notch, put into matched moulds after lug briquetting, lug will be compacted, and realize lug and draw from the side, and termination electrode lug and current collection copper mesh are integrated, avoided lug to draw from electrode rear portion and cause drawing position stress concentrate, welded problem of snapping fracture; Make lug accurate location in mould, avoid causing due to flash in hot pressing the buckling deformation of lug, and with the adhesion of flash; The thickness of lug is adjustable, if want to change lug thickness, only needs the big or small thickness of lug briquetting to adjust, and without unitary mould being carried out to secondary operations transformation, has saved manufacturing cost, has improved the applicability of mould.
Brief description of the drawings
Fig. 1 is the positional structure schematic diagram of termination electrode parts and mould;
Fig. 2 is the structural representation of mould lower bolster;
Fig. 3 is the structural representation of mould lug briquetting;
Fig. 4 is the structural representation of mould cope match-plate pattern;
Fig. 5 is electric pile structure schematic diagram.
Reference numeral is: 1-cope match-plate pattern, 2-lower bolster, 3-lug briquetting, 4-cope match-plate pattern location notch, 5-lug location notch, the 6-separating tank of slotting, 7-chucking lug, 8-lug, 9-lug briquetting, 10-conductive plastics, 11-current collection copper mesh, 12-insulation board, 13-plastics water conservancy diversion frame, 14-barrier film, 15-barrier film water conservancy diversion frame, 16-bipolar plates, 17-bipolar plates water conservancy diversion frame, 18-termination electrode.
Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated.
Embodiment
Embodiments of the invention 1: a kind of mould of manufacturing flow battery termination electrode parts, as shown in Fig. 2-Fig. 4, comprises cope match-plate pattern 1, lower bolster 2 and lug briquetting 3; Lower bolster 2 is cell bodies, and cell body edge is provided with lug location notch 5, be also provided with a pair of relatively and the cope match-plate pattern location notch 4 staggering, in cope match-plate pattern location notch 4, be provided with fluting separating tank 6; Cope match-plate pattern 2 is cover plates, and side edge thereof is provided with the chucking lug 7 matching with cope match-plate pattern location notch 4; Lug briquetting 9 matches with lug location notch 5, and the lug 8 of termination electrode is fixed in lug location notch 5 by lug briquetting 9.Each edge lengths of cope match-plate pattern 1 is than the little 1～1.3mm of the each edge lengths of corresponding lower bolster 2.
Embodiments of the invention 2: a kind of mould of manufacturing flow battery termination electrode parts, as shown in Fig. 2-Fig. 4, comprises cope match-plate pattern 1, lower bolster 2 and lug briquetting 3; Lower bolster 2 is cell bodies, and cell body edge is provided with lug location notch 5, be also provided with a pair of relatively and the cope match-plate pattern location notch 4 staggering, in cope match-plate pattern location notch 4, be provided with fluting separating tank 6; Cope match-plate pattern 2 is cover plates, and side edge thereof is provided with the chucking lug 7 matching with cope match-plate pattern location notch 4; Lug briquetting 9 matches with lug location notch 5, and the lug 8 of termination electrode is fixed in lug location notch 5 by lug briquetting 9.Each edge lengths of cope match-plate pattern 1 is than the little 1.3～1.6mm of the each edge lengths of corresponding lower bolster 2.
Embodiments of the invention 3: a kind of method that uses mould described in embodiment 1 or 2 to manufacture all-vanadium flow battery termination electrode parts, as shown in Figure 1, comprises the following steps:
S1, clamps current collection copper mesh 11 with two conductive plasticss 10, after clamping, with insulation board 12 and the coated formation termination electrode 18 of plastics water conservancy diversion frame 13, and the lug 8 on current collection copper mesh 11 is stretched out outside plastics water conservancy diversion frame 13;
S2, after being coated, puts into the lower bolster 2 of mould, and lug 8 is embedded in the lug location notch 5 of lower bolster 2, and fastening with lug briquetting 9, then covers the cope match-plate pattern 1 of mould;
S3, adopts hot-press method to suppress mould, when hot pressing starts, vacuumizes 150～200 seconds, and vacuum degree is less than 5000Pa; In hot pressing, the cope match-plate pattern 1 of mould, the temperature of lower bolster 2 remain on 160～175 DEG C, and oil pressure is 40～45MPa, carry out hot pressing 600～800 seconds, then cooling 3000～4000 seconds, be cooled to 20～25 DEG C, finally obtain all-vanadium flow battery termination electrode parts.
Material aspect, plastics water conservancy diversion frame 13, insulation board 12 are selected PVC material; The carbon series conductive plastics that conductive plastics 10 adopts taking polyethylene as matrix, resistivity is less than 0.8 Ω CM.
Embodiments of the invention 4: a kind of method that uses mould described in embodiment 1 or 2 to manufacture zinc-bromine bettery termination electrode parts, as shown in Figure 1, comprises the following steps:
S1, clamps current collection copper mesh 11 with two conductive plasticss 10, after clamping, with insulation board 12 and the coated formation termination electrode 18 of plastics water conservancy diversion frame 13, and the lug 8 on current collection copper mesh 11 is stretched out outside plastics water conservancy diversion frame 13;
S2, after being coated, puts into the lower bolster 2 of mould, and lug 8 is embedded in the lug location notch 5 of lower bolster 2, and fastening with lug briquetting 9, then covers the cope match-plate pattern 1 of mould;
S3, adopts hot-press method to suppress mould, when hot pressing starts, vacuumizes 200～250 seconds, and vacuum degree is less than 5000Pa; In hot pressing, the cope match-plate pattern 1 of mould, the temperature of lower bolster 2 remain on 175～190 DEG C, and oil pressure is 45～50MPa, carry out hot pressing 800～1000 seconds, then cooling 4000～5000 seconds, be cooled to 25～30 DEG C, finally obtain zinc bromine flow battery termination electrode parts.
Material aspect, plastics water conservancy diversion frame 13, insulation board 12 are selected the HDPE material that the coefficient of expansion is close with conductive plastics; The carbon series conductive plastics that conductive plastics 10 adopts taking polyethylene as matrix, resistivity is less than 0.8 Ω CM.
Embodiments of the invention 5: as shown in Figure 5, it has shown critical piece in pile and the relative position of termination electrode parts to the structural representation of the pile that the flow battery termination electrode parts that adopt embodiment 3 or 4 methods to manufacture form.Described pile is to be made up of multiple repetition battery components, and each battery component is made up of termination electrode parts, diaphragm element and bipolar plates parts.Termination electrode parts are not shown by termination electrode 18, plastics water conservancy diversion frame 13 and insulation board 12() form, diaphragm element comprises barrier film 14 and barrier film water conservancy diversion frame 15, bipolar plates parts comprise bipolar plates 16 and bipolar plates water conservancy diversion frame 17.
Claims (8)
1. a mould of manufacturing flow battery termination electrode parts, is characterized in that: comprise cope match-plate pattern (1), lower bolster (2) and lug briquetting (3); Lower bolster (2) is a cell body, and cell body edge is provided with cope match-plate pattern location notch (4) and lug location notch (5), is provided with fluting separating tank (6) in cope match-plate pattern location notch (4); Cope match-plate pattern (2) is a cover plate, and side edge thereof is provided with the chucking lug (7) matching with cope match-plate pattern location notch (4); Lug briquetting (9) matches with lug location notch (5), and the lug (8) of termination electrode is fixed in lug location notch (5) by lug briquetting (9).
2. the mould of manufacture flow battery termination electrode parts according to claim 1, is characterized in that: the each edge lengths of cope match-plate pattern (1) is than the little 1～1.6mm of the each edge lengths of corresponding lower bolster (2).
3. the mould of manufacture flow battery termination electrode parts according to claim 1, is characterized in that: cope match-plate pattern location notch (4) for a pair of relatively and the cell body staggering.
4. the mould described in right to use requirement 1～3 any one is manufactured a method for flow battery termination electrode parts, it is characterized in that, comprises the following steps:
S1, clamps current collection copper mesh (11) with two conductive plasticss (10), after clamping, uses insulation board (12) and plastics water conservancy diversion frame (13) coated, and the lug (8) on current collection copper mesh (11) is stretched out outside plastics water conservancy diversion frame (13);
S2, after being coated, puts into the lower bolster (2) of mould, and lug (8) is embedded in the lug location notch (5) of lower bolster (2), and fastening with lug briquetting (9), then covers the cope match-plate pattern (1) of mould;
S3, adopts hot-press method to suppress mould, makes flow battery termination electrode parts.
5. the method for manufacture flow battery termination electrode parts according to claim 4, is characterized in that: in the time that flow battery is all-vanadium flow battery, plastics water conservancy diversion frame (13), insulation board (12) are selected PVC material; In the time that flow battery is zinc-bromine bettery, plastics water conservancy diversion frame (13), insulation board (12) are selected HDPE material.
6. according to the method for the manufacture flow battery termination electrode parts described in claim 4 or 5, it is characterized in that: the carbon series conductive plastics that conductive plastics (10) adopts taking polyethylene as matrix, resistivity is less than 0.8 Ω CM.
7. the method for manufacture flow battery termination electrode parts according to claim 4, is characterized in that: in hot pressing, the temperature of the cope match-plate pattern of mould (1), lower bolster (2) is 160～190 DEG C; Oil pressure is 40～50MPa; Hot pressing time is 600～1000 seconds; Be 3000～5000 seconds cooling time; Chilling temperature is 20～30 DEG C.
8. according to the method for the manufacture flow battery termination electrode parts described in claim 4 or 8, it is characterized in that: when hot pressing starts, vacuumize 150～250 seconds, vacuum degree is less than 5000Pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410131057.5A CN103904338B (en) | 2014-04-02 | 2014-04-02 | Manufacture mould and the moulding manufacture method of flow battery termination electrode parts |
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| CN201410131057.5A CN103904338B (en) | 2014-04-02 | 2014-04-02 | Manufacture mould and the moulding manufacture method of flow battery termination electrode parts |
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| CN103904338A true CN103904338A (en) | 2014-07-02 |
| CN103904338B CN103904338B (en) | 2016-03-30 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106450479A (en) * | 2016-12-01 | 2017-02-22 | 佛山市实达科技有限公司 | Flexible lithium ion battery and making method thereof |
| CN106807823A (en) * | 2015-11-30 | 2017-06-09 | 上海交运集团股份有限公司 | Frame-type hydraulic pipe fitting bulging device and its method of work |
| CN110600750A (en) * | 2019-09-25 | 2019-12-20 | 青海百能汇通新能源科技有限公司 | All-vanadium redox flow battery composite terminal electrode and preparation method thereof |
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| CN102074710A (en) * | 2010-11-10 | 2011-05-25 | 大连融科储能技术发展有限公司 | Die for preparing integrated electrode for full-vanadium liquid flow energy storage battery and application thereof |
| CN102623722A (en) * | 2012-04-13 | 2012-08-01 | 北京百能汇通科技股份有限公司 | Termination electrode device and preparation method for flow batteries |
| CN102903933A (en) * | 2012-10-23 | 2013-01-30 | 卢奇土 | Carbon plastic composite polar plate grid and preparation method thereof |
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2014
- 2014-04-02 CN CN201410131057.5A patent/CN103904338B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102074710A (en) * | 2010-11-10 | 2011-05-25 | 大连融科储能技术发展有限公司 | Die for preparing integrated electrode for full-vanadium liquid flow energy storage battery and application thereof |
| CN102623722A (en) * | 2012-04-13 | 2012-08-01 | 北京百能汇通科技股份有限公司 | Termination electrode device and preparation method for flow batteries |
| CN102903933A (en) * | 2012-10-23 | 2013-01-30 | 卢奇土 | Carbon plastic composite polar plate grid and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106807823A (en) * | 2015-11-30 | 2017-06-09 | 上海交运集团股份有限公司 | Frame-type hydraulic pipe fitting bulging device and its method of work |
| CN106450479A (en) * | 2016-12-01 | 2017-02-22 | 佛山市实达科技有限公司 | Flexible lithium ion battery and making method thereof |
| CN110600750A (en) * | 2019-09-25 | 2019-12-20 | 青海百能汇通新能源科技有限公司 | All-vanadium redox flow battery composite terminal electrode and preparation method thereof |
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| CN103904338B (en) | 2016-03-30 |
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Effective date of registration: 20220329 Address after: 210000 No. 109, zhuangpai Road, moling street, Jiangning District, Nanjing, Jiangsu Province (Jiangning Development Zone) Patentee after: Jiangsu HengAn Energy Storage Technology Co.,Ltd. Address before: 810600 Zhongguancun base, floor 1, No. 211, Ping'an Avenue, Ping'an County, Haidong Prefecture, Qinghai Province Patentee before: QINGHAI BAINENG HUITONG NEW ENERGY SCIENCE & TECHNOLOGY CO.,LTD. |
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