ACラインフィルタリング性能を持つグラフェン二重層電容器

John R Miller¹, R A Outlaw, B C Holloway

¹JME, Inc., 17210 Parkland Drive, Shaker Heights, OH 44120, USA. jmecapacitor@att.net

Science (New York, N.Y.)

|October 9, 2010

まとめ

新しいグラフェン電極を備えた電気二層電容器 (DLC) は,波紋電流を効率的にフィルターします. この設計は,より速い応答時間と,より小さな電子機器の潜在能力を提供します.

科学分野:

マテリアルサイエンス材料科学
電気工学電気工学とは
電気化学電気化学について

背景:

電気の二重層電容器 (DLC) は,高い貯蔵容量を示しているが,その多孔な電極により,リップルフィルタリングアプリケーションのレジスタとして機能することが多い.
従来のDLCは,パワーエレクトロニクスのACリップルの効率的なフィルタリングに苦労しています.

研究の目的:

整直直直流のフィルタリング性能を改善したDLCを開発する.
垂直指向のグラフェンナノシートの使用を調査し,コンデンサの性能を向上させる.

主な方法:

垂直指向のグラフェンナノシートを使用したDLCの製造,金属電流集束器に直接成長した.
RC時間常数と120Hzのリップルフィルタリング効率を含む,コンデンサの性能の特徴.

主要な成果:

新しいDLCを使用した効率的な120Hzの電流フィルタリングが実証されました.
典型的なDLC (~1秒) と比較して,著しく減少したRC時間常数 (<200マイクロ秒) を達成しました.
グラフェンナノシート電極は,露出したエッジ平面による電荷貯蔵量の増加を示した.

結論:

垂直方向のグラフェンナノシート電極は,DLCで効率的なリップルフィルタリングを可能にします.
開発されたDLCは,従来のコンデンサに比べて優れた性能とミニチュライゼーションの可能性を提供します.

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