JP2013095918A - イオン交換膜充電用組成物、イオン交換膜の製造方法、イオン交換膜及びレドックスフロー電池 - Google Patents
イオン交換膜充電用組成物、イオン交換膜の製造方法、イオン交換膜及びレドックスフロー電池 Download PDFInfo
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- JP2013095918A JP2013095918A JP2012194795A JP2012194795A JP2013095918A JP 2013095918 A JP2013095918 A JP 2013095918A JP 2012194795 A JP2012194795 A JP 2012194795A JP 2012194795 A JP2012194795 A JP 2012194795A JP 2013095918 A JP2013095918 A JP 2013095918A
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- Prior art keywords
- exchange membrane
- ion exchange
- ion
- charging
- composition
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- QNODIIQQMGDSEF-UHFFFAOYSA-N (1-hydroxycyclohexyl)-phenylmethanone Chemical compound C=1C=CC=CC=1C(=O)C1(O)CCCCC1 QNODIIQQMGDSEF-UHFFFAOYSA-N 0.000 description 1
- GEWWCWZGHNIUBW-UHFFFAOYSA-N 1-(4-nitrophenyl)propan-2-one Chemical compound CC(=O)CC1=CC=C([N+]([O-])=O)C=C1 GEWWCWZGHNIUBW-UHFFFAOYSA-N 0.000 description 1
- CDDDRVNOHLVEED-UHFFFAOYSA-N 1-cyclohexyl-3-[1-[[1-(cyclohexylcarbamoylamino)cyclohexyl]diazenyl]cyclohexyl]urea Chemical compound C1CCCCC1(N=NC1(CCCCC1)NC(=O)NC1CCCCC1)NC(=O)NC1CCCCC1 CDDDRVNOHLVEED-UHFFFAOYSA-N 0.000 description 1
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- XMLYCEVDHLAQEL-UHFFFAOYSA-N 2-hydroxy-2-methyl-1-phenylpropan-1-one Chemical compound CC(C)(O)C(=O)C1=CC=CC=C1 XMLYCEVDHLAQEL-UHFFFAOYSA-N 0.000 description 1
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- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
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- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical group [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
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- 229910052727 yttrium Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01J41/08—Use of material as anion exchangers; Treatment of material for improving the anion exchange properties
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
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Abstract
【解決手段】イオン伝導性物質及び水溶性支持体を含むイオン交換膜充電用組成物。前記イオン伝導性物質は、イオン伝導性モノマー及びイオン伝導性ポリマーからなる群から選択された少なくとも1種の化合物を含むことが好ましい。また、前記水溶性支持体は、水溶性モノマー及び水溶性ポリマーからなる群から選択された少なくとも1種の化合物を含むことが好ましい。
【選択図】図1
Description
(イオン交換膜充電用組成物の製造)
イオン伝導性物質、水溶性支持体、溶媒(10重量%N−メチル−2−ピロリドン(NMP)水溶液)及び熱重合開始剤(アゾビスイソブチロニトリル(AIBN))を、下記の表1のような含量比で混合してイオン交換膜充電用組成物(または、イオン交換膜形成用組成物)を製造した。
多孔性基材膜(Fumatech社製、FAP4)を脱イオン水で数回洗浄した後、2M KOH溶液に含浸してOH−イオンでCl−イオンを十分に置換させた。次いで、前記置換された多孔性基材膜を再び脱イオン水で洗浄した。以後、前記洗浄された多孔性基材膜から水分を除去した後、乾燥オーブンで乾燥させた。次いで、ガラス板上に前記前処理及び洗浄された多孔性基材膜を位置させた後、前記で製造されたイオン交換膜充電用組成物を60μmの厚さにコーティングした。次いで、前記コーティングされた多孔性基材膜をオーブンに入れて60℃で7時間乾燥させた。以後、PC/TEABF4溶液(TEABF4の濃度:0.5M)を使用して、前記乾燥された多孔性基材膜に含まれているOH−イオン及びCl−イオンをBF4 −イオンに置換させてイオン交換膜を得た。ただし、比較例1では、ガラス板上に直接イオン交換膜形成用組成物を60μmの厚さにコーティングした後、前記のような乾燥及びイオン置換工程を行ってイオン交換膜を得た。
レドックスフロー電池を下記のような方法で製造した。
イオン交換膜としてFumatech社製のFAP4を何の処理もなく使用したことを除いては、前記実施例1〜4及び比較例1と同じ方法でレドックスフロー電池を製造した。
評価例1:イオン交換膜のイオン伝導度測定
実施例1〜4及び比較例1〜2のイオン交換膜のイオン伝導度を測定して、その結果を下記の表2に表した。イオン伝導度測定機としては、Solartron Analytical社製のSolartron 1260 Impedance spectroscopyを使用した。また、測定周波数範囲は0.1Hz〜1MHzであった。
実施例1〜4及び比較例1〜2で製造されたレドックスフロー電池のインピーダンスを測定し、その結果(すなわち、セル抵抗)を下記の表3に表した。また、実施例1及び比較例2で製造されたレドックスフロー電池のインピーダンス・スペクトルを図3に示した。インピーダンス測定機としては、Solartron Analytical社製のSolartron1260 Impedance spectroscopyを使用した。また、測定周波数範囲は0.1Hz〜1MHzであった。
前記実施例1〜4及び比較例1〜2で製造されたレドックスフロー電池に対して常温(25℃)で充放電テストを行い、その結果を下記の表4、図4及び図5に示した。
前記充放電テスト後にイオン交換膜を透過する非有効イオン(すなわち、Niイオン)の濃度をICP(inductively coupled plasma)で測定し、その結果を下記の表5に表した。具体的に、前記充放電テスト完了後、各カソード電解液に存在するNiイオンの濃度(すなわち、透過電解液の濃度)を測定して、有効イオンを除外した電解液成分のクロスオーバーを評価した。
水溶性支持逓加イオン交換膜の形成に及ぼす効能を評価するために、水溶性支持体/イオン伝導性物質の重量比が10/90であるイオン交換膜(実施例1)のSEM断面写真と、水溶性支持体/イオン伝導性物質の重量比が40/60であるイオン交換膜(実施例3)のSEM断面写真を、図6及び図7にそれぞれ示した。
2 アノードセル
11 カソード電解液
12 アノード電解液
13 カソード
14 アノード
21、22 タンク
31、32 ポンプ
41、42 菅
100 イオン交換膜
110 多孔性基材膜
120 イオン伝導性物質
130 水溶性支持体
Claims (20)
- イオン伝導性物質と、
水溶性支持体と、を含むイオン交換膜充電用組成物。 - 前記イオン伝導性物質は、イオン伝導性モノマー及びイオン伝導性ポリマーからなる群から選択された少なくとも1種の化合物を含む請求項1に記載のイオン交換膜充電用組成物。
- 前記イオン伝導性モノマーは、4級アンモニウム塩を含む請求項2に記載のイオン交換膜充電用組成物。
- 前記4級アンモニウム塩は、下記化学式1ないし4からなる群から選択された少なくとも1種の化合物を含む請求項3に記載のイオン交換膜充電用組成物:
- 前記イオン伝導性ポリマーは、ポリ(ジアリルジメチルアンモニウムクロリド)、ポリ(アクリルアミド−co−ジアリルジメチルアンモニウムクロリド)及びポリ(ジメチルアミン−co−エピクロロヒドリン−co−エチレンジアミン)からなる群から選択された少なくとも1種の化合物を含む請求項2に記載のイオン交換膜充電用組成物。
- 前記水溶性支持体は、水溶性モノマー及び水溶性ポリマーからなる群から選択された少なくとも1種の化合物を含む請求項1に記載のイオン交換膜充電用組成物。
- 前記水溶性モノマーは、ビニルアルコール、ビニルアセテート、アクリロニトリル及びメチルメタクリレートからなる群から選択された少なくとも1種の化合物を含む請求項6に記載のイオン交換膜充電用組成物。
- 前記水溶性ポリマーは、ポリアクリルアミド、ポリアクリル酸、ポリ(アクリルアミド−co−アクリル酸)、ポリビニルアルコール、ポリ(ジアリルジメチルアンモニウムクロリド)及びポリ(ナトリウム4−スチレンスルホン酸塩)からなる群から選択された少なくとも1種の化合物を含む請求項6に記載のイオン交換膜充電用組成物。
- 前記イオン伝導性物質対前記水溶性支持体の重量比は、70:30〜30:70である請求項1に記載のイオン交換膜充電用組成物。
- 少なくとも1種の溶媒をさらに含む請求項1に記載のイオン交換膜充電用組成物。
- 前記溶媒は、水、メタノール、エタノール、ジメチルアセトアミド、N−メチル−2−ピロリドン、ジメチルホルムアミド、ジメチルスルホキシド及びテトラヒドロフランからなる群から選択された少なくとも1種の化合物を含む請求項10に記載のイオン交換膜充電用組成物。
- 前記溶媒の含有量は、前記イオン伝導性物質及び前記水溶性支持体の総重量100重量部を基準として0〜100重量部である請求項11に記載のイオン交換膜充電用組成物。
- 熱重合開始剤または光重合開始剤をさらに含む請求項1に記載のイオン交換膜充電用組成物。
- イオン交換性を持つ多孔性基材膜に、請求項1ないし13のうちいずれか1項に記載のイオン交換膜充電用組成物を含浸させる段階と、
前記含浸されたイオン交換膜充電用組成物を重合させる段階と、を含むイオン交換膜の製造方法。 - 前記多孔性基材膜は、ポリオレフィン、ポリテトラフルオロエチレン、ポリエーテルエーテルケトン、ポリスルホン、ポリイミド及びポリアミドイミドからなる群から選択された少なくとも1種の化合物を含む請求項14に記載のイオン交換膜の製造方法。
- 請求項1ないし13のうちいずれか1項に記載のイオン交換膜充電用組成物の重合生成物を含むイオン交換膜。
- 前記イオン交換膜は、1.0×10−4S/cm以上のイオン伝導度を持つ請求項16に記載のイオン交換膜。
- 前記イオン交換膜は、20〜100μmの厚さを持つ請求項16に記載のイオン交換膜。
- カソード電解液と、
アノード電解液と、
前記カソード電解液と前記アノード電解液との間に配された請求項16に記載のイオン交換膜を含むレドックスフロー電池。 - 前記イオン交換膜は、陰イオン交換膜であり、前記カソード電解液と前記アノード電解液のうち少なくとも一つは有機電解液である請求項19に記載のレドックスフロー電池。
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EP2590250B1 (en) | 2020-10-07 |
US20150249253A1 (en) | 2015-09-03 |
US9728792B2 (en) | 2017-08-08 |
US20130115504A1 (en) | 2013-05-09 |
EP2590250A1 (en) | 2013-05-08 |
JP6101455B2 (ja) | 2017-03-22 |
KR20130049077A (ko) | 2013-05-13 |
KR101890747B1 (ko) | 2018-10-01 |
CN103087452B (zh) | 2017-11-21 |
CN103087452A (zh) | 2013-05-08 |
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