Development of Thermo-electrochemical Capacitor Device for Converting Low-grade Waste Heat into Electricity

Trial Project Development of Thermo-electrochemical Capacitor Device for Converting Low-grade Waste Heat into Electricity
(REF : P-0089)
Matched I&T Wish
Matched I&T Solution
Solution Feature
  1. HPS team invented a Thermo-Electrochemical Capacitor (TEC) using asymmetric electrodes, a carbon base cathode and a polymer anode in iron redox electrolyte via isothermal heating operation without building thermal gradient or thermal cycle.
  2. The invented TEC achieved heat-to-electricity conversion efficiency (η) over 3.5% at low-grade heat regime below 90°C (>20% of Carnot efficiency ηc), surpassing all existing thermo-electrochemical and thermoelectric systems.
  3. When heated, TEC generates voltage via thermo-pseudocapacitive effect of cathode and then discharges continuously by the oxidation of anode and the simultaneous reduction of redox couple. The system can be self-regenerated when cooled down; this synergistic mechanism allows the cyclability of TEC.
  4. Energy conversion from primary energy carriers to the final energy of use is subject to considerable losses equivalent to about 72% of the global primary energy consumption. The major loss is identified as waste heat and 63% of them are regarded as low-grade heat below 100°C.
  5. As low-grade heat is abundantly available in industrial processes, environment, biological entities, solar-thermal and geothermal energy, we believe that this game-changing electrochemical technology will lead to new and practical applications for efficiently converting low-grade heat to electricity.
Trial Information
Trial Site : EMSD Headquarters
Trial Scale : 1 no. of low grade heat to electricity conversion device
Trial Duration : 18 Nov 2019 to 16 May 2020
Final Report EMSD-M&V-P0089-W0206-S0158_Final.pdf
Info on I&T Solution Provider
Solution Provider:HIGH PERFORMANCE SOLUTION LIMITED
Address:UNIT 1104A 11/F, KAI TAK COMM BLDG, 317-319 DES VOEUX RD, CENTRAL, HK
Contact Person:Tony Shien-Ping Feng
Position:Director
Tel: 5689 1315
Email: info@hps-global.com