JP6961081B2 - 分離膜製造用樹脂組成物、その製造方法及びそれを含む電池 - Google Patents
分離膜製造用樹脂組成物、その製造方法及びそれを含む電池 Download PDFInfo
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- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 18
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- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 8
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- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 claims description 6
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 6
- ATHHXGZTWNVVOU-UHFFFAOYSA-N N-methylformamide Chemical compound CNC=O ATHHXGZTWNVVOU-UHFFFAOYSA-N 0.000 claims description 6
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- UQSQSQZYBQSBJZ-UHFFFAOYSA-N fluorosulfonic acid Chemical group OS(F)(=O)=O UQSQSQZYBQSBJZ-UHFFFAOYSA-N 0.000 claims description 5
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- RQAKESSLMFZVMC-UHFFFAOYSA-N n-ethenylacetamide Chemical compound CC(=O)NC=C RQAKESSLMFZVMC-UHFFFAOYSA-N 0.000 claims description 3
- 229920001467 poly(styrenesulfonates) Polymers 0.000 claims description 3
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- 229920002530 polyetherether ketone Polymers 0.000 claims description 3
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- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 claims description 3
- 125000001174 sulfone group Chemical group 0.000 claims description 3
- 229910052720 vanadium Inorganic materials 0.000 claims description 3
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical group [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 3
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
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- -1 chloro- Chemical class 0.000 description 1
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- 238000005342 ion exchange Methods 0.000 description 1
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- 125000003010 ionic group Chemical group 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229920006030 multiblock copolymer Polymers 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
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- 125000000542 sulfonic acid group Chemical group 0.000 description 1
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Description
本発明は、スルホン化された高分子、アミド基を含む有機溶媒、及び水を含み、
前記アミド基を含む有機溶媒は、前記スルホン化された高分子100重量部に対して20〜30重量部で含まれる分離膜製造用樹脂組成物を提供する。
(a)スルホン化された高分子と水の混合物を準備する段階;及び
(b)前記スルホン化された高分子100重量部に対して20〜30重量部のアミド基を含む有機溶媒を添加する段階;
を含む分離膜製造用樹脂組成物の製造方法を提供する。
(a)前記本発明の分離膜製造用樹脂組成物を用いてシート状の分離膜を成形する段階;及び
(b)前記(a)段階の成形後、70〜220℃に加熱して前記アミド基を含む有機溶媒を除去する段階;
を含む分離膜の製造方法を提供する。
前記分離膜は、前記本発明の分離膜製造用樹脂組成物で製造されることを特徴とする電池を提供する。
上記アミド基を含む有機溶媒は、スルホン化された高分子100重量部に対して20〜30重量部で含まれる分離膜製造用樹脂組成物に関する。
(a)スルホン化された高分子と水の混合物を準備する段階;及び
(b)上記スルホン化された高分子100重量部に対して20〜30重量部のアミド基を含む有機溶媒を添加する段階;
を含む分離膜製造用樹脂組成物の製造方法に関する。
(a)上記本発明の分離膜製造用樹脂組成物を用いてシート(sheet)状の分離膜を成形する段階;及び
(b)上記(a)段階の成形後、70〜220℃に加熱してアミド基を含む有機溶媒を除去する段階;
を含む分離膜の製造方法に関する。
上記分離膜は、上記本発明の分離膜製造用樹脂組成物で製造されることを特徴とする電池に関する。
実施例1〜6及び比較例1〜5
下記表1の成分及び含有量で実施例1〜6及び比較例1〜5の分離膜製造用樹脂組成物を製造した。
上記実施例1〜6及び比較例1〜5で製造した分離膜製造用樹脂組成物の保管期間による組成物の粘度を測定し、結果を表2に示した。
実施例1、実施例6、比較例1〜3及び比較例5で製造した分離膜製造用樹脂組成物を用いて分離膜を製造した。
Claims (10)
- スルホン化された高分子、アミド基を含む有機溶媒、及び水を含み、
前記アミド基を含む有機溶媒は、前記スルホン化された高分子100重量部に対して20〜30重量部で含まれる分離膜製造用樹脂組成物であって、
前記スルホン化された高分子は、パーフルオロスルホン酸系高分子、スルホン化されたポリアリーレンエーテル系高分子、スルホン化されたポリエーテルケトン系高分子、スルホン化されたポリエーテルエーテルケトン系高分子、スルホン化されたポリアミド系高分子、スルホン化されたポリイミド系高分子、スルホン化されたポリホスファゼン系高分子、スルホン化されたポリスチレン系高分子及び放射線重合のスルホン化された低密度ポリエチレン−g−ポリスチレン系高分子からなる群より選択される1種以上の単一共重合体、交互共重合体、不規則共重合体、ブロック共重合体、マルチブロック共重合体、またはグラフト共重合体であり、
前記アミド基を含む有機溶媒は、ジメチルアセトアミド、ジメチルホルムアミド、N−メチル−2−ピロリドン、N−メチルホルムアミド、N−ビニルアセトアミド、N−ビニルピロリドン、ホルムアミド、及び2−ピロリドンからなる群より選択される1種以上を含み、
前記スルホン化された高分子のスルホン基と前記アミド基を含む有機溶媒のアミド基とのモル比は、1:1.13〜1:1.7であり、
前記分離膜製造用樹脂組成物は、保管期間により粘度が100〜3000cpsになるように調整できる、分離膜製造用樹脂組成物。 - 前記アミド基を含む有機溶媒は、ジメチルアセトアミド、及びジメチルホルムアミドからなる群より選択される1種以上を含むことを特徴とする、請求項1に記載の分離膜製造用樹脂組成物。
- 前記スルホン化された高分子は、パーフルオロスルホン酸系高分子を含むことを特徴とする、請求項1または2に記載の分離膜製造用樹脂組成物。
- 前記分離膜製造用樹脂組成物の総重量に対して前記スルホン化された高分子20〜30重量%、前記アミド基を含む有機溶媒4〜9重量%及び水61〜76重量%を含むことを特徴とする、請求項1〜3のいずれか1項に記載の分離膜製造用樹脂組成物。
- (a)スルホン化された高分子と水の混合物を準備する段階;及び
(b)前記スルホン化された高分子100重量部に対して20〜30重量部のアミド基を含む有機溶媒を添加する段階;
を含む分離膜製造用樹脂組成物の製造方法であって、
前記スルホン化された高分子は、パーフルオロスルホン酸系高分子、スルホン化されたポリアリーレンエーテル系高分子、スルホン化されたポリエーテルケトン系高分子、スルホン化されたポリエーテルエーテルケトン系高分子、スルホン化されたポリアミド系高分子、スルホン化されたポリイミド系高分子、スルホン化されたポリホスファゼン系高分子、スルホン化されたポリスチレン系高分子及び放射線重合のスルホン化された低密度ポリエチレン−g−ポリスチレン系高分子からなる群より選択される1種以上の単一共重合体、交互共重合体、不規則共重合体、ブロック共重合体、マルチブロック共重合体、またはグラフト共重合体であり、
前記アミド基を含む有機溶媒は、ジメチルアセトアミド、ジメチルホルムアミド、N−メチル−2−ピロリドン、N−メチルホルムアミド、N−ビニルアセトアミド、N−ビニルピロリドン、ホルムアミド、及び2−ピロリドンからなる群より選択される1種以上を含み、
前記スルホン化された高分子のスルホン基と前記アミド基を含む有機溶媒のアミド基とのモル比は、1:1.13〜1:1.7であり、
前記分離膜製造用樹脂組成物は、保管期間により粘度が100〜3000cpsになるように調整できる、分離膜製造用樹脂組成物の製造方法。 - 前記(b)段階で製造された組成物を1〜17日間保管しながら、時間に伴う粘度の変化をチェックして目的とする粘度を得ることを特徴とする、請求項5に記載の分離膜製造用樹脂組成物の製造方法。
- (a)請求項1〜4のいずれか1項に記載の分離膜製造用樹脂組成物を用いてシート状の分離膜を成形する段階;及び
(b)前記(a)段階の成形後、70〜220℃に加熱して前記アミド基を含む有機溶媒を除去する段階;
を含む分離膜の製造方法。 - 前記シート状の分離膜の製造は、ロール・ツー・ロール工程により行われることを特徴とする、請求項7に記載の分離膜の製造方法。
- 負極;正極;及び前記負極と前記正極との間に配置される分離膜を含む電池の製造方法であって、
前記分離膜は、請求項1〜4のいずれか1項に記載の分離膜製造用樹脂組成物で製造されることを特徴とする電池の製造方法。 - 前記電池は、バナジウムレドックスフロー電池であることを特徴とする、請求項9に記載の電池の製造方法。
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