電気二重層コンデンサ（EDLC）は、主に二重層と疑似容量の電荷に依存する新しいエネルギー貯蔵装置です。 従来の化学電源とは異なり、EDLCは従来のコンデンサとバッテリの間の一種の電源であり、高い電力密度、短い充電および放電時間、長いサイクル寿命、広い動作温度範囲などの利点があります。 したがって、補助ピーク電力、待機電力、再生可能エネルギーの貯蔵、代替電源など、さまざまなアプリケーションシナリオで広く使用できます。 産業用制御、電力、輸送、インテリジェント機器、家電、国防、通信、新エネルギー車、その他多くの分野で大きな応用価値と市場の可能性を秘めています。
Currently, activated carbon materials with a specific surface area of more than 3000m2/g have been prepared, but the real utilization rate is only about 30% when used for the electrode of supercapacitor. Therefore, the specific surface area of AC usually used at present is about 1500m2/g, generally not more than 2000m2/g. Their maximum specific capacities could be as high as 280F/ G (stream electrolyte) and 120F/g (non-stream electrolyte).
The conductivity of activated carbon is one of the important factors affecting the charge-discharge performance of supercapacitor. For activated carbon materials, the conductivity decreases with the increase of surface area, on the one hand, the content of activated carbon on the wall of the material micropores decreases with the increase of surface area; On the other hand, the conductivity of activated carbon material is closely related to the contact area between activated carbon particles and the position of activated carbon particles. The electrolyte solution is impregnated in the pores of activated carbon particles and the gap between the particles. Whether fully impregnated between activated carbon and electrolyte will have a great influence on the conductivity of the capacitor. The surface characteristics of the material, especially the pore size and hole depth of the micropores, are important factors to determine the conductivity.
H現在のところ、しかし、そのコストは製品の総コストのほぼ40-50％を占めています。 スーパーキャパシター市場の急成長に伴い、国内外で超活性炭の需要が高まっています。
