Thermoelectric conversion material and method of obtaining electrical power using thermoelectric conversion material
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsHiromasa Tamaki, Tsutomu Kanno, Hiroki Sato
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Abstract
A thermoelectric conversion material has a composition represented by the chemical formula Li3-aBi1-bSib, in which the range of values a and b is: 0≤a≤0.0001, and −a+0.0003≤b≤0.023; 0.0001≤a<0.0003, and −a+0.0003≤b≤exp[−0.046×(ln(a))2−1.03×ln(a)−9.51]; or 0.0003≤a≤0.085, and 0<b≤exp[−0.046×(ln(a))2−1.03×ln(a)−9.51], and in which the thermoelectric conversion material has a BiF3-type crystal structure and has a p-type polarity.
Claims3
A thermoelectric conversion material comprising a composition represented by the chemical formula Li3-aBi1-bSib, wherein:
- the thermoelectric conversion material has a crystal structure same as BiF3, and has a p-type polarity, and
- any one of the following formulas (I) to (III) is satisfied:
- 0≤a≤0.0001, and −a+0.0003≤b≤0.023 (I);
- 0.0001≤a<0.0003, and −a+0.0003≤b≤exp[−0.046×(ln(a))2−1.03×ln(a)−9.51] (II);
- and
- 0.0003≤a≤0.085, and 0≤b≤exp[−0.046×(ln(a))2−1.03×ln(a)−9.51] (III).
A method of obtaining electrical power using a thermoelectric conversion material, the method comprising:
- applying a temperature difference to the thermoelectric conversion material to generate the electrical power, wherein:
- the thermoelectric conversion material has a composition represented by the chemical formula Li3-aBi1-bSib, has a crystal structure same as BiF3, and has a p-type polarity, and
- any one of the following formulas (I) to (III) is satisfied:
- 0≤a≤0.0001, and −a+0.0003≤b≤0.023 (I);
- 0.0001≤a<0.0003, and −a+0.0003≤b≤exp[−0.046×(ln(a))2−1.03×ln(a)−9.51] (II);
- and
- 0.0003≤a≤0.085, and 0≤b≤exp[−0.046×(ln(a))2−1.03×ln(a)−9.51] (III).
Dependencies are inferred from the claim text.