NOVELTY - A silicon ribbon manufacturing apparatus comprises a container (5) with hot-melting portion (16) and cooling portion (17) separated by a partition wall (9) made of heat insulating material. An aperture (9a) for penetrating a rotational cooling object (1) is provided to the partition wall. The container is provided with heat insulating wall (6) on the inner side.    USE - For manufacture of silicon ribbon used as substrate for manufacturing solar battery.    ADVANTAGE - By dividing the container into hot melting portion and cooling portion with partition wall in between, transfer of heat from the silicon melt solution to the coolant is decreased. Hence problems such as increase in flow rate of cooling gas, irregularity in temperature distribution and instability in growth of silicon are eliminated. By closing the aperture with the lid, transfer of heat from the heater or crucible to the coolant can be decreased effectively. Thin silicon ribbon with uniform thickness can be obtained stably in large quantities at low cost. The short circuit current density and curvilinear factor of the solar battery are increased using the silicon ribbon. Hence solar battery with improved conversion efficiency can be manufactured at low cost.    DETAILED DESCRIPTION - A heater (7) is arranged on either side of a square shaped crucible (3) containing melting silicon raw material (4). The rotational cooling object is supported by a rotation axis (2) at the upper part of the container. An openable lid made of heat insulating material to close the aperture completely or partially is provided, such that the aperture is wide opened by the lid only during immersion of rotational cooling object in the melting silicon. INDEPENDENT CLAIMS are also included for the following:    (a) Solar battery;    (b) Silicon ribbon    DESCRIPTION OF DRAWING(S) - The figure shows transverse plane cross-sectional chart of silicon ribbon manufacturing apparatus.    Rotational cooling object (1)    Rotation axis (2)    Square shaped crucible (3)    Silicon raw material (4)    Container (5)    Heat insulating wall (6)    Heater (7)    Partition wall (9)    Heat melting portion (16)    Cooling portion (17)