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高電壓超級電容器技術 2022/07/21
簡介 Introductions
超級電容器受限於電壓不足，於有機電解液系統電壓可達2.5-2.7 伏特。透過機械所自行開發的機台製作，以直接垂直成長石墨烯奈米壁電極（無摻雜與氮摻雜）製作無須接著劑之超級電容系統，正極與負極分別提供廣泛的電位窗至 4.0 伏特。相對於目前的活性碳電極可以達到更佳的電壓耐受性。
The low cell voltage (2.5 - 2.7 V in organic liquid electrolytes) of Electrical double-layer capacitors (EDLCs) encounter the issue of a relatively low energy density. The binder-free, vertically grown graphene nanowalls (GNW/N-doped GNW). This newly designed asymmetric EDLC exhibits a cell voltage of 4 V. Materials with an inert surface enable to tolerate a wider potential window in commercially available organic electrolytes in comparison with activated carbons (ACs).
特色與創新 Characters and Innovations
- 使用電漿合成法直接成長及摻雜奈米石墨烯壁。
- 創新離子嵌入法提升奈米石墨烯壁之電容量。
- 最大工作電壓超過 4.0 伏特可與鋰電池直接並連使用。
- Binder-free and directly growing and doping graphene nanowall by plasma synthesis method.
- Innovative intercalation method assists in the capacitance of graphene nanowall.
- The maximum operating potential is more than 4 volts which can be in parallel with LIB battery.
應用與效益 Applications and Benefits
- 4.0 伏特奈米石墨烯壁超級電容器，壽命長且安全性佳，可廣泛應用於無人搬運車、導軌運輸車電源、醫療電源、軌道交通等儲能系統。
- Long life-time and increased safety 4 volts GNW EDLC possesses high potential application for AGV/RGV, medical adapter, and automotive electronics etc.
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工作電壓為4V 之超級電容器