防腐性,安全性,低コストの材料を用いた水性,ポリマーベースのリドックスフロー電池
Tobias Janoschka1,2, Norbert Martin3, Udo Martin3
1Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany.
Nature
|October 28, 2015
まとめ
この研究では,有機ポリマーと塩化ナトリウム電解質を使用した安全で手頃な価格でスケーラブルなリドックスフローバッテリー (RFB) を導入しています. このイノベーションは,再生可能エネルギーの統合のための現在のエネルギー貯蔵の限界に対処します.
科学分野:
- 電気化学
- 材料科学
- 再生可能エネルギーの貯蔵
背景:
- 再生可能エネルギー源は 生産量の変動を管理するために 柔軟でスケーラブルなエネルギー貯蔵を必要とします
- レドックスフロー電池 (RFB) は有望な大規模なエネルギー貯蔵技術ですが,限界があります.
- 現在のRFBは,高価で腐食性の高い材料と,長期的に限られた資源 (例えば,ヴァナジウム,リチウム) によって制限されています.
研究 の 目的:
- 安価で安全でスケーラブルなエネルギー貯蔵ソリューションを開発する.
- 伝統的なRFB化学と関連した材料の制限とコストを克服する.
- 低コストで環境に優しい部品を使用する新しいポリマーベースのRFBを提示します.
主な方法:
- オーガニックポリマーを充電貯蔵材料として使用するリドックス流電池システムの開発.
- 安価な透析膜を用いてアノードとカソードを分離した.
- 塩化ナトリウム溶液を電解剤として使った.
主要な成果:
- 1リットルのエネルギー密度は10ワット・アワーです
- 100ミリアンペア/平方センチメートルの高い電流密度を示した.
- 安定した長期サイクリング能力を示した.
結論:
- ポリマーベースのRFBは,再生可能エネルギーの貯蔵のための安全で費用対効果の高い,スケーラブルな代替手段を提供します.
- このシステムは,環境に優しい材料 (水,NaCl,有機ポリマー) と商業的に利用可能な膜を使用しています.
- この技術は,将来のグリッドエネルギー貯蔵アプリケーションで広く採用される可能性を示しています.
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