THERMOELECTRIC GENERATOR FOR CONVERTING THERMAL ENERGY INTO ELECTRICAL ENERGY
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Abstract
A thermoelectric generator for converting thermal energy into electrical energy includes a plurality of Peltier elements which are coupled into a module and are arranged between a heat source and a heat sink, with each Peltier element having of a p-doped leg and an n-doped leg which are connected at their ends in an electrically conductive manner by electrodes. Both the p-doped legs and the n-doped legs of the individual Peltier elements are made of different materials, the efficiency of which is optimized with respect to the different temperature values at the contact points of the individual Peltier elements to the heat source. The high-temperature range of the p-doped legs includes MMyFe4-xCoxSb12 and/or MMyFe4-xNixSb12, with MM being a misch metal of La, Ce, Pr, Nd and Sm, and the high-temperature range of the n-doped legs includes AyCo4-xTxSb12, with A standing for Ba, Ca, Sr and a mixture thereof and T for Ni and Pd.
8 Citations
18 Claims
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1-10. -10. (canceled)
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11. A thermoelectric generator for converting thermal energy into electrical energy, comprising a plurality of Peltier elements which are coupled into a module and are arranged between a heat source and a heat sink, with each Peltier element consisting of a p-doped leg and an n-doped leg which are connected at their ends in an electrically conductive manner by electrodes,
wherein both the p-doped legs and the n-doped legs of the individual Peltier elements consist of different materials depending on different temperature values at the contact points of the individual Peltier elements to the heat source, wherein the high-temperature range of the p-doped legs is based on Fe-based Skutterudites, e.g., Ce0.9Fe3CoSb12, Yb0.75Fe3.5Ni0.5Sb12, comprising MMyFe4-xCoxSb12 and/or MMyFe4-xNixSb12, with MM being a misch metal of La, Ce, Pr, Nd and Sm, and wherein the high-temperature range of the n-doped legs is based on Co-based Skutterudites, e.g., YbyCo4-xPtxSb12, comprising AyCo4-xTxSb12, with A standing for Ba, Ca, Sr and a mixture thereof and T for Ni and Pd.
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17. A thermoelectric generator for converting thermal energy into electrical energy, comprising at least one Peltier element which is arranged between a heat source in the range of 600°
- C. and a heat sink, with the Peltier element consisting of a p-doped leg and an n-doped leg which are connected in an electrically conductive manner at their ends by electrodes, wherein the high-temperature range of the p-doped legs is based on Fe-based Skutterudites, e.g., Ce0.9Fe3CoSb12, Yb0.75Fe3.5Ni0.5Sb12, comprising MMyFe4-xCoxSb12 and/or MMyFe4-xNixSb12, with MM being a misch metal of La, Ce, Pr, Nd and Sm, and wherein the high-temperature range of the n-doped legs is based on Co-based Skutterudites, e.g., YbyCo4-xPtxSb12, comprising AyCo4-xTxSb12, with A standing for Ba, Ca, Sr and a mixture thereof and T for Ni and Pd.
- View Dependent Claims (18)
Specification