EN

Z.-S. Wu, S. Yang, L. Zhang, J. B. Wagner, X. Feng*, K. Müllen*, 
Energy Storage Materials 2015, 1: 119-126.  
DOI: 10.1016/j.ensm.2015.09.004  [PDF]

发布时间:2016-03-18    栏目名称:2015

Z.-S. Wu, S. Yang, L. Zhang, J. B. Wagner, X. Feng*, K. Müllen*,
Energy Storage Materials 2015, 1: 119-126. 
DOI: 10.1016/j.ensm.2015.09.004  [PDF]

Abstract
Micro-supercapacitors (MSCs) hold great promise as highly competitive miniaturized power sources satisfying the increased demand in microelectronics; however, simultaneously achieving high areal and volumetric capacitances is still a great challenge. Here we demonstrated the designed construction of binder-free, electrically conductive, nanoporous activated graphene (AG) compact films for high-performance MSCs. The binder-free AG films are fabricated by alternating deposition of electrochemically exfoliated graphene (EG) and nanoporous AG with a high specific surface area of 2920 m2/g, and then dry transferring onto the target substrates with a high-pressure mechanical densification process. Remarkably, the resulting compressed AG films showed uniform morphology in lateral dimensions, high conductivity (60S/cm), nanoporous feature (<10 0="" 5="" 8="" 10="" 89="" nm="" and="" high="" packing="" density="" g="" cm3="" the="" all-solid-state="" mscs="" ag-mscs="" based="" on="" these="" ag="" films="" simultaneously="" delivered="" an="" unprecedented="" areal="" capacitance="" of="" f="" cm2="" volumetric="" 147f="" for="" at="" 10mv="" s="" moreover="" fabricated="" could="" be="" operated="" a="" large="" scan="" rate="" 000="" mv="" showed="" outstanding="" cycling="" stability="" retention="">99.6% after 10,000 cycles). Our results suggested that AG-MSCs are competitive for prospective applications of miniaturized energy storage devices.                  

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