TWI796024B - Fluid battery module - Google Patents
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- TWI796024B TWI796024B TW110144608A TW110144608A TWI796024B TW I796024 B TWI796024 B TW I796024B TW 110144608 A TW110144608 A TW 110144608A TW 110144608 A TW110144608 A TW 110144608A TW I796024 B TWI796024 B TW I796024B
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- 239000012530 fluid Substances 0.000 title claims abstract description 5
- 230000002093 peripheral effect Effects 0.000 claims abstract description 27
- 239000012528 membrane Substances 0.000 claims abstract description 13
- 210000000170 cell membrane Anatomy 0.000 claims description 56
- 239000000565 sealant Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- 230000003746 surface roughness Effects 0.000 claims description 10
- 239000000084 colloidal system Substances 0.000 claims description 7
- 230000031700 light absorption Effects 0.000 claims description 5
- 238000002310 reflectometry Methods 0.000 claims description 5
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract description 3
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000003466 welding Methods 0.000 description 17
- 238000010586 diagram Methods 0.000 description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 5
- 239000003792 electrolyte Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000004381 surface treatment Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000004590 silicone sealant Substances 0.000 description 2
- 238000002835 absorbance Methods 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
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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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Battery Mounting, Suspending (AREA)
- External Artificial Organs (AREA)
Abstract
Description
本發明是有關於一種電池模組，且特別是有關於一種流體電池模組。 The present invention relates to a battery module, and in particular to a flow battery module.
液流儲能電池是一種以不同價態離子溶液作為正負極活性物質之電池。液流儲能電池包括電池模組、正極電解液、負極電解液及控制管理系統。正極電解液與負極電解液透過泵流經電池模組且循環，且控制管理系統控制上述運作。 A flow energy storage battery is a battery that uses ion solutions of different valence states as positive and negative active materials. Flow energy storage battery includes battery module, positive electrolyte, negative electrolyte and control management system. The positive electrolyte and the negative electrolyte flow through the battery module and circulate through the pump, and the control management system controls the above operations.
液流儲能電池中的電池模組包括碳氈電極、質子膜、雙極板等元件，這些元件之間的組裝密封性最為重要，傳統多以密封墊片防漏，再以螺栓進行鎖固組裝。 The battery module in the flow energy storage battery includes carbon felt electrodes, proton membranes, bipolar plates and other components. The assembly and sealing of these components is the most important. Traditionally, sealing gaskets are used to prevent leakage, and then bolts are used for locking. Assemble.
然而，習知電池模組由於在相鄰兩層之間設有密封墊片，整體配置的體積相當龐大，且洩漏風險也較大。此外，使用螺栓施予高壓容易造成螺孔處應力集中。 However, because the conventional battery module is provided with a sealing gasket between two adjacent layers, the overall configuration is quite bulky, and the risk of leakage is also relatively high. In addition, the use of bolts to apply high pressure is likely to cause stress concentration at the screw holes.
本發明提供一種流體電池模組，其串聯組件具有良好的 密封性且不需透過螺栓固定。 The invention provides a flow battery module, the series components of which have good It is airtight and does not need to be fixed through bolts.
本發明的一種流體電池模組，包括至少一質膜組件以及至少二串聯組件。至少二串聯組件與至少一質膜組件交錯地配置且接合在一起。各串聯組件包括兩第一框板及一雙極板。各第一框板包括凹陷於一第一表面的一第一凹陷部、位於第一凹陷部內的一第一貫穿開口及圍繞第一凹陷部的一第一周圍區，其中一個第一框板的第一凹陷部朝向另一個第一框板的第一凹陷部，且其中一個第一框板的第一周圍區熔接於另一個第一框板的第一周圍區。雙極板夾設於兩第一框板之間，且包括相對的兩雙極表面，其中各雙極表面包括一雙極中央區及圍繞雙極中央區的一雙極周圍區，各雙極中央區外露於第一貫穿開口，各雙極周圍區朝向對應的第一凹陷部且塗佈有一絕熱層，各第一凹陷部熔接於對應的雙極周圍區。 A fluid battery module of the present invention includes at least one plasma membrane module and at least two serial modules. At least two serial modules and at least one plasma membrane module are arranged alternately and joined together. Each series assembly includes two first frame plates and a bipolar plate. Each first frame plate includes a first recessed portion recessed on a first surface, a first through opening located in the first recessed portion and a first surrounding area surrounding the first recessed portion, wherein one of the first frame plates The first concave portion faces the first concave portion of the other first frame plate, and the first surrounding area of one of the first frame plates is welded to the first surrounding area of the other first frame plate. The bipolar plate is sandwiched between the two first frame plates and includes two opposite bipolar surfaces, wherein each bipolar surface includes a bipolar central area and a bipolar peripheral area surrounding the bipolar central area, and each bipolar The central area is exposed to the first through opening, each bipolar peripheral area faces the corresponding first depression and is coated with a heat insulating layer, and each first depression is welded to the corresponding bipolar peripheral area.
在本發明的一實施例中，上述的絕熱層的反射率介於60%至100%之間。 In an embodiment of the present invention, the reflectivity of the heat insulating layer is between 60% and 100%.
在本發明的一實施例中，上述的兩第一框板透光，各第一凹陷部塗佈有一第一吸熱層。 In an embodiment of the present invention, the above-mentioned two first frame plates are light-transmitting, and each first concave portion is coated with a first heat absorbing layer.
在本發明的一實施例中，上述的第一吸熱層的吸光率介於60%至100%之間。 In an embodiment of the present invention, the light absorption rate of the above-mentioned first heat absorbing layer is between 60% and 100%.
在本發明的一實施例中，上述的兩第一框板透光，其中一個第一框板的第一周圍區塗佈有一第二吸熱層。 In an embodiment of the present invention, the above-mentioned two first frame plates are light-transmitting, and a second heat absorbing layer is coated on the first surrounding area of one of the first frame plates.
在本發明的一實施例中，上述的第二吸熱層的吸光率介 於60%至100%之間。 In one embodiment of the present invention, the absorbance of the above-mentioned second heat absorbing layer is between Between 60% and 100%.
在本發明的一實施例中，上述的各質膜組件包括兩第二框板及一質子膜。各第二框板包括凹陷於一第二表面的一第二凹陷部、位於第二凹陷部內的一第二貫穿開口及圍繞第二凹陷部的一第二周圍區，其中一個第二框板的第二凹陷部朝向另一個第二框板的第二凹陷部，且其中一個第二框板的第二周圍區熱壓合或超音波熔接於另一個第二框板的第二周圍區。質子膜夾設於兩第二框板之間，且包括相對的兩質膜表面，其中各質膜表面包括一質膜中央區及圍繞質膜中央區的一質膜周圍區，各質膜中央區外露於第二貫穿開口，各第二凹陷部朝向且熱壓合或超音波熔接於對應的質膜周圍區。 In an embodiment of the present invention, each of the aforementioned plasma membrane components includes two second frame plates and a proton membrane. Each second frame plate includes a second recessed portion recessed on a second surface, a second through opening located in the second recessed portion, and a second peripheral area surrounding the second recessed portion, wherein one of the second frame plates The second recessed portion faces the second recessed portion of the other second frame plate, and the second surrounding area of one of the second frame plates is thermocompressed or ultrasonically welded to the second surrounding area of the other second frame plate. The proton membrane is sandwiched between the two second frame plates, and includes two opposite plasma membrane surfaces, wherein each plasma membrane surface includes a plasma membrane central region and a plasma membrane peripheral region surrounding the plasma membrane central region, and each plasma membrane central region The region is exposed to the second through opening, and each second concave portion faces and is thermocompressed or ultrasonically welded to the corresponding surrounding region of the plasma membrane.
在本發明的一實施例中，上述的各第一框板包括相對於第一表面的一第三表面，各第二框板包括相對於第二表面的一第四表面，其中一個第一框板的第三表面朝向對應的第二框板的第四表面，一密封膠體設置於第三表面與第四表面之間。 In an embodiment of the present invention, each of the above-mentioned first frame plates includes a third surface opposite to the first surface, each second frame plate includes a fourth surface opposite to the second surface, and one of the first frame plates The third surface of the plate faces the corresponding fourth surface of the second frame plate, and a sealant is disposed between the third surface and the fourth surface.
在本發明的一實施例中，上述的第三表面與第四表面為兩粗糙面，且第三表面與第四表面的表面粗糙度介於3μm至50μm之間。 In an embodiment of the present invention, the above-mentioned third surface and the fourth surface are two rough surfaces, and the surface roughness of the third surface and the fourth surface is between 3 μm and 50 μm.
在本發明的一實施例中，上述的密封膠體為一耐酸鹼且具黏著力膠體。 In an embodiment of the present invention, the above-mentioned sealing colloid is an acid and alkali resistant colloid with adhesive force.
基於上述，本發明的流體電池模組的串聯組件的雙極板夾設在兩第一框板之間。雙極板的雙極中央區外露於第一貫穿開 口，雙極板的雙極周圍區朝向對應的第一框板的第一凹陷部，且雙極周圍區塗佈有一絕熱層。第一框板的第一凹陷部熔接於對應的雙極周圍區，且兩第一框板的兩第一周圍區熔接於彼此。換句話說，本發明的流體電池模組的串聯組件的兩第一框板的兩第一周圍區熔接於彼此，且雙極板的雙極周圍區熔接第一框板的第一凹陷部，兩相鄰元件的介面之間透過面熔接的方式固定，而可不使用螺絲或螺栓，而可避免應力集中的狀況。再者，為了避免雙極板的高導熱特質而難以透過加熱的方式熔接至第一框板，雙極周圍區塗佈有一絕熱層，以避免熱能經由雙極板散失，而能夠完成熱熔接。 Based on the above, the bipolar plate of the series assembly of the flow battery module of the present invention is interposed between the two first frame plates. The bipolar central region of the bipolar plate is exposed through the first through opening The bipolar peripheral area of the bipolar plate faces the corresponding first recessed portion of the first frame plate, and the bipolar peripheral area is coated with a heat insulating layer. The first concave portion of the first frame plate is welded to the corresponding bipolar surrounding area, and the two first surrounding areas of the two first frame plates are welded to each other. In other words, the two first surrounding areas of the two first frame plates of the series assembly of the flow battery module of the present invention are welded to each other, and the bipolar surrounding areas of the bipolar plates are welded to the first concave portion of the first frame plate, The interface between two adjacent components is fixed by surface welding without using screws or bolts, thereby avoiding stress concentration. Moreover, in order to prevent the bipolar plate from being difficult to be welded to the first frame plate by heating because of its high thermal conductivity, the surrounding area of the bipolar plate is coated with a heat insulating layer to prevent heat energy from being lost through the bipolar plate, thereby enabling thermal welding to be completed.
100:流體電池模組 100: Flow battery module
102:端板 102: end plate
104:集電板 104:Collector plate
110:串聯組件 110: Series components
111:第一框板 111: The first frame board
112:第一表面 112: first surface
113:第一凹陷部 113: the first depression
114:第一吸熱層 114: the first heat absorbing layer
115:第一貫穿開口 115: First through opening
116:第一周圍區 116: The first surrounding area
117:第二吸熱層 117: Second heat absorbing layer
118:第三表面 118: The third surface
120:雙極板 120: bipolar plate
122:雙極表面 122: bipolar surface
124:雙極中央區 124: bipolar central area
126:雙極周圍區 126: Bipolar surrounding area
128:絕熱層 128: heat insulation layer
130:質膜組件 130: Plasma membrane components
131:第二框板 131: Second frame board
132:第二表面 132: second surface
133:第二凹陷部 133: the second depression
134:第二貫穿開口 134: second through opening
135:第二周圍區 135: The second surrounding area
136:第四表面 136: The fourth surface
140:質子膜 140: Proton membrane
142:質膜表面 142:Plasma membrane surface
144:質膜中央區 144:Plasma membrane central region
146:質膜周圍區 146:Plasma membrane periregion
150:密封膠體 150: sealant
160:碳氈件 160: carbon felt
圖1是依照本發明的一實施例的一種流體電池模組的示意圖。 FIG. 1 is a schematic diagram of a flow battery module according to an embodiment of the present invention.
圖2是圖1的***示意圖。 Fig. 2 is an exploded schematic diagram of Fig. 1 .
圖3是圖1的流體電池模組的串聯組件的示意圖。 FIG. 3 is a schematic diagram of serial assemblies of the flow battery module of FIG. 1 .
圖4是圖3的***示意圖。 FIG. 4 is an exploded schematic diagram of FIG. 3 .
圖5是圖3的剖面示意圖。 FIG. 5 is a schematic cross-sectional view of FIG. 3 .
圖6是圖1的流體電池模組的質膜組件的示意圖。 FIG. 6 is a schematic diagram of the plasma membrane assembly of the flow battery module in FIG. 1 .
圖7是圖6的***示意圖。 FIG. 7 is an exploded schematic diagram of FIG. 6 .
圖8是圖6的剖面示意圖。 FIG. 8 is a schematic cross-sectional view of FIG. 6 .
圖9是圖1的流體電池模組的串聯組件與質膜組件的局部剖面示意圖。 FIG. 9 is a schematic partial cross-sectional view of the serial assembly and the plasma membrane assembly of the flow battery module in FIG. 1 .
圖1是依照本發明的一實施例的一種流體電池模組的示意圖。圖2是圖1的***示意圖。為使圖示簡潔，圖2省略繪示密封膠體150。請參考圖1與圖2，本實施例的流體電池模組100包括兩端板102、兩集電板104、至少一質膜組件130、至少二串聯組件110及多個碳氈件160(圖2)。
FIG. 1 is a schematic diagram of a flow battery module according to an embodiment of the present invention. Fig. 2 is an exploded schematic diagram of Fig. 1 . To simplify the illustration, the
如圖2所示，在本實施例中，串聯組件110與質膜組件130分別有多個。這些串聯組件110與這些質膜組件130交錯地配置且接合在一起。各碳氈件160位於相鄰的質膜組件130及串聯組件110之間，而作為電極。碳氈件160對應質膜組件130及串聯組件110的中央設置。兩集電板104位於這些質膜組件130及這些串聯組件110的兩側，且兩端板102設置於兩集電板104的兩側。
As shown in FIG. 2 , in this embodiment, there are multiple
在本實施例中，流體電池模組100會先將各串聯組件110及各質膜組件130密封好之後，再將相鄰的串聯組件110與質膜組件130密封起來，之後再設置兩集電板104及兩端板102，並如圖1所示將流體電池模組100綁住。
In this embodiment, the
在本實施例中，串聯組件110、質膜組件130本身以及相鄰的串聯組件110與質膜組件130之間具有特殊的設計，而可不
需將自身的這些元件利用螺栓的方式固定於彼此，下面將對此說明。
In this embodiment, the
圖3是圖1的流體電池模組的串聯組件的示意圖。圖4是圖3的***示意圖。圖5是圖3的剖面示意圖。要說明的是，為了清楚顯示出第一框板111，在圖4中隱藏絕熱層128、第一吸熱層114及第二吸熱層117。
FIG. 3 is a schematic diagram of serial assemblies of the flow battery module of FIG. 1 . FIG. 4 is an exploded schematic diagram of FIG. 3 . FIG. 5 is a schematic cross-sectional view of FIG. 3 . It should be noted that, in order to clearly show the
請參閱圖3至圖5，各串聯組件110包括兩第一框板111及一雙極板120。如圖4所示，各第一框板111包括凹陷於一第一表面112的一第一凹陷部113、位於第一凹陷部113內的一第一貫穿開口115及圍繞第一凹陷部113的一第一周圍區116。在本實施例中，兩第一框板111的兩第一表面112朝向於彼此，而使得兩第一凹陷部113朝向彼此。
Referring to FIG. 3 to FIG. 5 , each
雙極板120夾設於兩第一框板111的兩第一凹陷部113之間。雙極板120包括相對的兩雙極表面122。各雙極表面122包括一雙極中央區124及圍繞雙極中央區124的一雙極周圍區126。如圖3所示，當雙極板120組裝於兩第一框板111之間時，雙極中央區124外露於第一貫穿開口115。如圖4所示，雙極周圍區126為雙極表面122上對應於第一框板111的第一凹陷部113的部位，雙極周圍區126朝向對應的第一凹陷部113。
The
如圖5所示，在本實施例中，兩相鄰元件的介面之間透過面與面的形式熔接固定。具體地說，雙極板120的雙極周圍區126與相鄰的第一框板111的第一凹陷部113之間熔接固定，以使
雙極板120固定於第一框板111。熱熔接的方式例如是雷射、超音波、熱壓等熔接方式，但不以此為限制。
As shown in FIG. 5 , in this embodiment, the interfaces of two adjacent components are welded and fixed in a surface-to-surface manner. Specifically, the bipolar
值得一提的是，雙極板120的材質例如是石墨，具有高導熱性。為了避免雙極板120的高導熱特質而難以透過加熱的方式熔接至第一框板111，在本實施例中，雙極周圍區126塗佈有一絕熱層128，以隔絕熱能傳導至雙極板120。如此一來，當第一框板111的第一凹陷部113受熱熔融時，會包覆雙極周圍區126，以使兩者接合在一起。
It is worth mentioning that the
在本實施例中，第一框板111例如透光，材質例如是ABS樹脂。絕熱層128可選用反射率高，熱傳導係數低的材質，以防止熱能由雙極板120散失，絕熱層128的反射率介於60%至100%之間。在一實施例中，絕熱層128例如是白漆(樹酯及高分子材料)，反射率為90%，熱傳導係數為0.069W/m。當然，絕熱層128的形式不以此為限制。
In this embodiment, the
值得一提的是，若是以雷射光來熔接，第一框板111呈透明的話，透明的第一框板111難以吸熱。因此，在本實施例中，各第一凹陷部113塗佈有一第一吸熱層114，以利於熱能可以集中於第一凹陷部113的表面，以與雙極周圍區126良好地熔接。
It is worth mentioning that if the
此外，兩第一框板111的兩第一周圍區116朝向彼此且透過熱熔接的方式固定於彼此。熱熔接的方式例如是雷射、超音波、熱壓等熔接方式。同樣地，兩第一框板111的兩第一周圍區116的其中一個塗佈有一第二吸熱層117，以利於熱能可以集中於
兩第一周圍區116之間，以使兩第一周圍區116良好地熔接。
In addition, the two first
第一吸熱層114的吸光率介於60%至100%之間，第二吸熱層117的吸光率介於60%至100%之間。在一實施例中，第一吸熱層114與第二吸熱層117為黑漆(樹酯及高分子材料)，吸光率為99%。當然，第一吸熱層114與第二吸熱層117的材料不以此為限制。
The light absorption rate of the first
在本實施例中，串聯組件110的兩第一框板111的兩第一周圍區116熔接於彼此，且雙極板120的雙極周圍區126熔接第一框板111的第一凹陷部113。也就是說，兩相鄰元件的介面之間透過面與面的形式熔接，而具有良好的密封性，且可不使用螺絲或螺栓，而可避免應力集中的狀況。
In this embodiment, the two first
經實測，透過雷射熔接，兩第一框板111的兩第一周圍區116之間在操作參數為功率為1W，走速150mm/s，壓力0.4MPa的狀況下，可得到最佳的接合強度，為38.3MPa，且在相同操作參數下，第一凹陷部113的表面與雙極周圍區126之間的接合強度為15.23MPa，而具有良好的表現。
According to the actual measurement, through laser welding, the best joint can be obtained between the two first surrounding
圖6是圖1的流體電池模組的質膜組件的示意圖。圖7是圖6的***示意圖。圖8是圖6的剖面示意圖。請參閱圖6至圖8，在本實施例中，質膜組件130包括兩第二框板131及一質子膜140。
FIG. 6 is a schematic diagram of the plasma membrane assembly of the flow battery module in FIG. 1 . FIG. 7 is an exploded schematic diagram of FIG. 6 . FIG. 8 is a schematic cross-sectional view of FIG. 6 . Referring to FIGS. 6 to 8 , in this embodiment, the
如圖7所示，各第二框板131包括凹陷於一第二表面132的一第二凹陷部133、位於第二凹陷部133內的一第二貫穿開口
134及圍繞第二凹陷部133的一第二周圍區135，兩第二框板131的兩第二表面132朝向於彼此，而使兩第二凹陷部133朝向於彼此。
As shown in FIG. 7 , each
質子膜140夾設於兩第二框板131的兩第二凹陷部133之間，且包括相對的兩質膜表面142。各質膜表面142包括一質膜中央區144及圍繞質膜中央區144的一質膜周圍區146。如圖6所示，當質子膜140組裝於兩第二框板131之間時，質膜中央區144外露於第二貫穿開口134。如圖7所示，質膜周圍區146為質膜表面142上對應於第二框板131的第二凹陷部133的部位，質膜周圍區146朝向對應的第二凹陷部133。
The
如圖8所示，在本實施例中，質膜組件130的兩第二框板131的兩第二周圍區135熱壓合或超音波熔接於彼此，且第二框板131的第二凹陷部133朝向且熱壓合或超音波熔接於對應的質膜周圍區146。
As shown in FIG. 8 , in this embodiment, the two second peripheral regions 135 of the two
在本實施例中，熱熔接的方式例如是超音波或是熱壓合，以避免加熱溫度過高而使得質子膜140破裂。也就是說，在進行質膜組件130組裝時，會特別選用不超過200度的熔接方式來進行，以保護質子膜140。
In this embodiment, the heat welding method is, for example, ultrasonic wave or thermocompression bonding, so as to prevent the
經實驗，以超音波熔接為例，在操作參數的選擇上，若材料厚度為0.5公厘，在壓力為10psi、15psi、30psi，且熔接時間大於1秒時，抗拉力可達400N以上。此外，當壓力為10psi且熔接時間為1.5秒時，抗拉力可達400N以上，且溢料率小於
4%。因此，利用上述實驗得到的參數(壓力為10psi且熔接時間為1.5秒)來熱熔接兩第二框板131及質子膜140，抗拉力可達183.3N(36.7MPa)，且表面平整，而有良好的表現。
After experiments, taking ultrasonic welding as an example, in the selection of operating parameters, if the material thickness is 0.5 mm, the tensile force can reach more than 400N when the pressure is 10psi, 15psi, 30psi, and the welding time is greater than 1 second. In addition, when the pressure is 10psi and the welding time is 1.5 seconds, the tensile force can reach more than 400N, and the flash rate is less than
4%. Therefore, using the parameters obtained from the above experiment (the pressure is 10 psi and the welding time is 1.5 seconds) to thermally weld the two
同樣地，質膜組件130的兩相鄰元件的介面之間透過面與面的形式熔接，而具有良好的密封性，且可不使用螺絲或螺栓，而可避免應力集中的狀況。
Similarly, the interface between two adjacent elements of the
請回到圖1，在本實施例中，串聯組件110與質膜組件130再分別組裝完成之後，再交錯地配置，且將相鄰的串聯組件110與質膜組件130密封在一起。下面將對此說明。
Please return to FIG. 1 , in this embodiment, after the
圖9是圖1的流體電池模組的串聯組件與質膜組件的局部剖面示意圖。請參閱圖9，在本實施例中，串聯組件110的第一框板111包括相對於第一表面112的一第三表面118。質膜組件130的第二框板131包括相對於第二表面132的一第四表面136。
FIG. 9 is a schematic partial cross-sectional view of the serial assembly and the plasma membrane assembly of the flow battery module in FIG. 1 . Please refer to FIG. 9 , in this embodiment, the
第一框板111的第三表面118朝向對應的第二框板131的第四表面136，一密封膠體150設置於第三表面118與第四表面136之間，以接合串聯組件110與質膜組件130，而完成封裝。由於兩相鄰的串聯組件110與質膜組件130之間透過面與面的形式熔接，而具有良好的密封性，且可不使用螺絲或螺栓，而可避免應力集中的狀況。
The
在本實施例中，密封膠體150為一中性矽質密封膠。精實測，若第三表面118與第四表面136為光滑面，中性矽質密封膠的抗拉強度可達11MPa，而具有良好的表現。當然，密封膠體
150使用耐酸鹼且具黏著力之膠體即可，密封膠體150的種類不以此為限制。
In this embodiment, the
值得一提的是，為了提升第一框板111的第三表面118與第二框板131的第四表面136之間的接合力，在本實施例中，第三表面118與第四表面136經表面處理而為兩粗糙面，而使得密封膠體150更穩固地附著在第三表面118與第四表面136。在本實施例中，第三表面118與第四表面136的表面粗糙度介於3μm至50μm之間。
It is worth mentioning that, in order to enhance the bonding force between the
對第三表面118與第四表面136進行表面處理的方式例如是利用砂紙研磨表面，但表面處理的方式不以此為限制。表面粗糙度太大，會導致密封膠體150無法緊密附著，反而降低抗拉強度，因此表面粗糙度並非越大越好。
The surface treatment method of the
經實驗，利用砂紙號數為P100的砂紙來研磨時表面粗糙度介於40μm至50μm之間，利用砂紙號數為P600的砂紙來研磨時表面粗糙度介於10μm至14μm之間，利用砂紙號數為P1000的砂紙來研磨時表面粗糙度介於5μm至7μm之間。 According to experiments, the surface roughness is between 40 μm and 50 μm when using sandpaper number P100 for grinding, and the surface roughness is between 10 μm and 14 μm when using sandpaper number P600. The surface roughness is between 5 μm and 7 μm when grinding with sandpaper with a count of P1000.
經實測，表面粗糙度介於3μm至50μm之間時，第一框板111與第二框板131之間的密封膠體150的抗拉強度均有良好的表現。進一步地，表面粗糙度介於5μm至7μm之間時，第一框板111與第二框板131之間的密封膠體150的抗拉強度可達22MPa，而有更佳的表現。
According to actual measurements, when the surface roughness is between 3 μm and 50 μm, the tensile strength of the
綜上所述，本發明的流體電池模組的串聯組件的雙極板 夾設在兩第一框板之間。雙極板的雙極中央區外露於第一貫穿開口，雙極板的雙極周圍區朝向對應的第一框板的第一凹陷部，且雙極周圍區塗佈有一絕熱層。第一框板的第一凹陷部熔接於對應的雙極周圍區，且兩第一框板的兩第一周圍區熔接於彼此。換句話說，本發明的流體電池模組的串聯組件的兩第一框板的兩第一周圍區熔接於彼此，且雙極板的雙極周圍區熔接第一框板的第一凹陷部，兩相鄰元件的介面之間透過面熔接的方式固定，而可不使用螺絲或螺栓，而可避免應力集中的狀況。再者，為了避免雙極板的高導熱特質而難以透過加熱的方式熔接至第一框板，雙極周圍區塗佈有一絕熱層，以避免熱能經由雙極板散失，而能夠完成熱熔接。 In summary, the bipolar plate of the series assembly of the flow battery module of the present invention It is sandwiched between two first frame plates. The bipolar central area of the bipolar plate is exposed to the first through opening, the bipolar peripheral area of the bipolar plate faces the corresponding first concave portion of the first frame plate, and the bipolar peripheral area is coated with a heat insulating layer. The first concave portion of the first frame plate is welded to the corresponding bipolar surrounding area, and the two first surrounding areas of the two first frame plates are welded to each other. In other words, the two first surrounding areas of the two first frame plates of the series assembly of the flow battery module of the present invention are welded to each other, and the bipolar surrounding areas of the bipolar plates are welded to the first concave portion of the first frame plate, The interface between two adjacent components is fixed by surface welding without using screws or bolts, thereby avoiding stress concentration. Moreover, in order to prevent the bipolar plate from being difficult to be welded to the first frame plate by heating because of its high thermal conductivity, the surrounding area of the bipolar plate is coated with a heat insulating layer to prevent heat energy from being lost through the bipolar plate, thereby enabling thermal welding to be completed.
111:第一框板 111: The first frame board
112:第一表面 112: first surface
113:第一凹陷部 113: the first depression
115:第一貫穿開口 115: first through opening
116:第一周圍區 116: The first surrounding area
118:第三表面 118: The third surface
120:雙極板 120: bipolar plate
122:雙極表面 122: bipolar surface
124:雙極中央區 124: bipolar central area
126:雙極周圍區 126: Bipolar surrounding area
Claims (9)
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5366824A (en) * | 1992-10-21 | 1994-11-22 | Agency Of Industrial Science & Technology, Ministry Of International Trade & Industry | Flow battery |
| CN102820476A (en) * | 2011-12-29 | 2012-12-12 | 马志啟 | Application of proton exchange membrane in Fe-Cr system liquid phase fluid battery |
| WO2013034079A1 (en) * | 2011-09-09 | 2013-03-14 | 深圳市金钒能源科技有限公司 | Integral frame plate of vanadium redox flow battery, preparation method thereof, and cell stack manufactured by using frame plate |
| CN112928298A (en) * | 2019-12-06 | 2021-06-08 | 中国科学院大连化学物理研究所 | Zinc-bromine single flow battery structure |
-
2021
- 2021-11-30 TW TW110144608A patent/TWI796024B/en active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5366824A (en) * | 1992-10-21 | 1994-11-22 | Agency Of Industrial Science & Technology, Ministry Of International Trade & Industry | Flow battery |
| WO2013034079A1 (en) * | 2011-09-09 | 2013-03-14 | 深圳市金钒能源科技有限公司 | Integral frame plate of vanadium redox flow battery, preparation method thereof, and cell stack manufactured by using frame plate |
| CN102820476A (en) * | 2011-12-29 | 2012-12-12 | 马志啟 | Application of proton exchange membrane in Fe-Cr system liquid phase fluid battery |
| CN112928298A (en) * | 2019-12-06 | 2021-06-08 | 中国科学院大连化学物理研究所 | Zinc-bromine single flow battery structure |
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