Thermoelectric materials comprising nanoscale inclusions to...

Details Thermoelectric materials comprising nanoscale inclusions to... Thermoelectric materials comprising nanoscale inclusions to...

2008-04-29

2008-04-29

Nguyen, Nam (Department: 1795)

Batteries: thermoelectric and photoelectric

Thermoelectric

Having particular thermoelectric composition

C136S239000, C136S201000, C252S06230T, C977S779000, C977S948000

Reexamination Certificate

active

11152664

ABSTRACT:
A thermoelectric material having enhanced Seebeck coefficient is characterized by a microstructure comprising nanoscale Pb inclusions dispersed in matrix substantially composed of PbTe. The excess Pb is obtained either by adding Pb in an amount greater than the stoichiometric amount needed to form PbTe, or by adding an additive effective to getter Te so as to produce the desired excess. The method is generally applicable to enhance thermoelectric properties of compounds of Pb, Sn or Ge, and Te, Se, or S.

REFERENCES:
patent: 3285019 (1966-11-01), Henderson et al.
patent: 6444896 (2002-09-01), Harman et al.
patent: 2002/0026856 (2002-03-01), Suzuki et al.
D. B. Evans et al, “An Electron Microprobe Study of Inclusions in Lead Telluride Thermoelectric Elements”, NASA TN D-5415, Nov. 1969.

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