Abstract: A method for manufacturing a carbon composite electrode material which comprises coating the surface of core carbon particles with high crystallinity with a film containing a element of Group VIII metal and depositing and/or covering the surface of resulting coated carbon particles with a carbon material to be formed upon pyrolysis of a hydrocarbon or its derivative.

Abstract: A method for manufacturing a carbon composite electrode material which comprises coating the surface of core carbon particles with high crystallinity with a film containing a element of Group VIII metal and depositing and/or covering the surface of resulting coated carbon particles with a carbon material to be formed upon pyrolysis of a hydrocarbon or its derivative.

Abstract: A non-aqueous secondary battery of the present invention includes a positive electrode; a negative electrode containing lithium, and a non-aqueous ion-conductive material, wherein the positive electrode contains Li.sub.x Co.sub.1-y Sb.sub.y O.sub.2, where 0.05.ltoreq.x.ltoreq.1.1, and 0.001.ltoreq.y.ltoreq.0.10 as a positive electrode active material.

Abstract: A refrigerator comprising a refrigeration cycle which comprises a compressor, condenser, first capillary tube and first cooler connected into a loop, and a quick freezing refrigerant circuit connected in parallel with the first cooler and comprising a second capillary tube and a second cooler connected in series therewith. The refrigerant is passed through the first cooler for usual operation, or alternatively through the quick freezing circuit for quick freezing. During quick freezing, the first cooler is held out of operation, and the refrigerant has its pressure reduced in two steps by the first and second capillary tubes and is evaporated in the second cooler only, giving a low temperature effective for quick freezing. During usual operation, no refrigerant flows into the second cooler, which therefore remains free of frosting. The frost deposited on the second cooler during quick freezing disappears during the usual operation. Thus, the second cooler is substantially free from frost.

Abstract: A solar heat collector system including a heat collector circuit containing a compressor that compresses and outputs thermal media and is capable of varying its own capacity by conversion of operative frequencies; a condensor being part of the heat collector circuit, which is connected to the output of the compressor; a plurality of heat collectors integrally built with housing materials, one end of which being connected to the condensor via a squeezer and the other end of the heat collector system being connected to the compressor, where each unit heat collector contains a plurality of thermal media tubes allowing thermal media to pass through the inside thereof and heat collect fins connected to the thermal media tubes for transferring heat; a hot-water pool storing hot water for use inside the house; and a fluid heating circuit inclusive of a fluid heater held in heat-exchange relationship with the condensor outside of the hot-water pool.

Abstract: A refrigerator comprising a refrigeration cycle which comprises a compressor, condenser, first capillary tube and first cooler connected into a loop, and a quick freezing refrigerant circuit connected in parallel with the first cooler and comprising a second capillary tube and a second cooler connected in series therewith. The refrigerant is passed through the first cooler for usual operation, or alternatively through the quick freezing circuit for quick freezing. During quick freezing, the first cooler is held out of operation, and the refrigerant has its pressure reduced in two steps by the first and second capillary tubes and is evaporated in the second cooler only, giving a low temperature effective for quick freezing. During usual operation, no refrigerant flows into the second cooler, which therefore remains free of frosting. The frost deposited on the second cooler during quick freezing disappears during the usual operation. Thus, the second cooler is substantially free from frost.