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High Power Density Electrochemical Thermocells for Inexpensively Harvesting Low‐Grade Thermal Energy
Author(s) -
Zhang Long,
Kim Taewoo,
Li Na,
Kang Tae June,
Chen Jun,
Pringle Jennifer M.,
Zhang Mei,
Kazim Ali H.,
Fang Shaoli,
Haines Carter,
AlMasri Danah,
Cola Baratunde A.,
Razal Joselito M.,
Di Jiangtao,
Beirne Stephen,
MacFarlane Douglas R.,
GonzalezMartin Anuncia,
Mathew Sibi,
Kim Yong Hyup,
Wallace Gordon,
Baughman Ray H.
Publication year - 2017
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201605652
Subject(s) - materials science , power density , energy harvesting , electrochemistry , thermal , energy density , planar , thermoelectric materials , thermal energy , power (physics) , optoelectronics , nanotechnology , engineering physics , composite material , thermal conductivity , computer science , electrode , thermodynamics , chemistry , physics , computer graphics (images) , engineering
Continuously operating thermo‐electrochemical cells (thermocells) are of interest for harvesting low‐grade waste thermal energy because of their potentially low cost compared with conventional thermoelectrics. Pt‐free thermocells devised here provide an output power of 12 W m −2 for an interelectrode temperature difference (Δ T ) of 81 °C, which is sixfold higher power than previously reported for planar thermocells operating at ambient pressure.