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Title: Energy harvesting using a thermoelectric material

Abstract

A novel energy harvesting system and method utilizing a thermoelectric having a material exhibiting a large thermally induced strain (TIS) due to a phase transformation and a material exhibiting a stress induced electric field is introduced. A material that exhibits such a phase transformation exhibits a large increase in the coefficient of thermal expansion over an incremental temperature range (typically several degrees Kelvin). When such a material is arranged in a geometric configuration, such as, for a example, a laminate with a material that exhibits a stress induced electric field (e.g. a piezoelectric material) the thermally induced strain is converted to an electric field.

Inventors:
 [1];  [2];  [3]
  1. Van Nuys, CA
  2. Los Angeles, CA
  3. San Leandro, CA
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
984481
Patent Number(s):
7397169
Application Number:
11/082,632
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Classifications (CPCs):
H - ELECTRICITY H02 - GENERATION H02N - ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Nersessian, Nersesse, Carman, Gregory P, and Radousky, Harry B. Energy harvesting using a thermoelectric material. United States: N. p., 2008. Web.
Nersessian, Nersesse, Carman, Gregory P, & Radousky, Harry B. Energy harvesting using a thermoelectric material. United States.
Nersessian, Nersesse, Carman, Gregory P, and Radousky, Harry B. Tue . "Energy harvesting using a thermoelectric material". United States. https://www.osti.gov/servlets/purl/984481.
@article{osti_984481,
title = {Energy harvesting using a thermoelectric material},
author = {Nersessian, Nersesse and Carman, Gregory P and Radousky, Harry B},
abstractNote = {A novel energy harvesting system and method utilizing a thermoelectric having a material exhibiting a large thermally induced strain (TIS) due to a phase transformation and a material exhibiting a stress induced electric field is introduced. A material that exhibits such a phase transformation exhibits a large increase in the coefficient of thermal expansion over an incremental temperature range (typically several degrees Kelvin). When such a material is arranged in a geometric configuration, such as, for a example, a laminate with a material that exhibits a stress induced electric field (e.g. a piezoelectric material) the thermally induced strain is converted to an electric field.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2008},
month = {7}
}

Patent:

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