Journal
NANO ENERGY
Volume 65, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.nanoen.2019.104052
Keywords
Direct ethanol fuel cell; Drop-and-play function; Flexible
Categories
Funding
- National Natural Science Foundation of China [21805063]
- Natural Science Foundation of Guangdong Province for Distinguished Young Scholars [2018B030306022]
- Economic, Trade and Information Commission of Shenzhen Municipality through the Graphene Manufacture Innovation Center [201901161514]
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Highly flexible direct ethanol fuel cells (DEFC) are a promising next frontier of energy conversion devices that will change the pattern of current flexible electronics. However, the major difficulties such as ethanol-crossover-induced catalyst poisoning and harsh conditions, limit the development of such devices. Here, we report for the first time a flexible drop-and-play DEFC that addresses all these difficulties via using a highly active oxygen reduction reaction (ORR) electrocatalyst which cannot be poisoned by ethanol, together with a superior alkali-compatible and ion-conductive hydrogel electrolyte. The fabricated flexible DEFC shows high performances of 21.48 mW cm(-2) power density and 1.41 mWh cm(-2) energy density at room temperature and atmospheric pressure. Moreover, it possesses excellent flexibility and unique drop-and-play function, easily powering an electronic clock and a smart phone. Such high-performance flexible DEFC with drop-and-play function opens up many new opportunities for next-generation flexible electronics.
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