CHEMICAL HEAT STORAGE MATERIAL AND PRODUCTION METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a chemical heat storage material excellent in durability and capable of exercising fully the ability thereof as a chemical heat storage system; and a production method thereof.

SOLUTION: This chemical heat storage material has: a basket-shaped structure 5 having a large number of pores which is obtained by calcining a mixture of a clay mineral 2 and a combustible granular substance 3; and a chemical heat storage material 6 supported on the outer surface and in the inside of pores of the basket-shaped structure 5. The combustible granular substance 3 is preferably one type or two or more types of a coconut, a chip, a carbon black and a ketjen black. The clay mineral 2 is preferably sepiolite and/or palygorskite. The chemical heat storage material 6 is preferably a hydration reaction-type chemical heat storage material converted into an oxide according to a dehydration reaction and converted into a hydroxide according to a hydration reaction. The chemical heat storage material is preferably produced by further incorporating a thermal conductivity-enhancing material. The thermal conductivity-enhancing material is preferably a carbon nanotube.

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