Chemistry: electrical current producing apparatus – product – and – Current production dependent upon temperature differential...
Patent
1993-10-20
1994-05-10
Skapars, Anthony
Chemistry: electrical current producing apparatus, product, and
Current production dependent upon temperature differential...
429 24, H01M 636
Patent
active
053106083
ABSTRACT:
The temperature difference battery includes a solution 2 which contains redox ion couples having a temperature-dependent redox potential. A low-temperature (LT) electrode 1 and a high-temperature (HT) electrode 3 are disposed in the solution 2. A membrane film 6 impervious to the redox ion couples is disposed between the HT electrode 3 and the LT electrode 1. A LT power electrode 7 is disposed between the LT electrode 1 and the membrane film 6, and a HT power electrode 8 is disposed between the HT electrode 3 and the membrane film 6. When there is a temperature difference between the electrodes 1, 3, the redox potential of the ion couples change, and thermoelectric power is generated between the LT electrode 1 and the HT electrode 3, which is used to charge the battery. The concentration of the redox ion couples in the LT region and in the HT region increases as charging progresses, and the membrane 6 maintains the concentration difference thus storing the electrical power. Because the power electrodes 7, 8 are disposed in the solutions of different concentrations, an emf is generated by the concentration effect, and continuous power is delivered. By open circuiting the electrodes 1, 3, the continuous power deliver and can be continued until the concentration difference disappears, even after the temperature difference is eliminated. Therefore, the invented battery possesses charge storage, generation and power delivery capabilities. The battery can be used effectively for waste heat utilization.
REFERENCES:
patent: 4211828 (1980-07-01), Peck
patent: 4407902 (1983-10-01), Kummer
patent: 4410606 (1983-10-01), Loutfy et al.
Ishizawa Maki
Kitada Syuichi
Koyama Mitsunori
Ogata Tsutomu
Shindo Kazuhiko
Nippon Telegraph and Telephone Corporation
Skapars Anthony
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