An insulating tape having a mica layer, a reinforcing layer having a filler and a fiber reinforcing material laminated on the mica layer, and a cellulose derivative layer laminated on the reinforcing layer is provided. One or more hydroxyl groups in the glucose units of the cellulose derivative are substituted with a functional group such as CH.sub.2CH.sub.2OH or (CH.sub.2CH.sub.2O).sub.pH (where p is any repeating number up to 50). The weight per unit area of the mica ranges from 100 g/m.sup.2 to 200 g/m.sup.2. The filler has a maximum particle size of 100 m or smaller and a weight per unit area ranging from 10 g/m.sup.2 to 50 g/m.sup.2. The insulating tape is useful to form a stator coil insulating layer with high thermal conductivity, with no outflow of a filler to the exterior during production of the stator coil, and with enhanced bonding strength.

The present disclosure is a conductive paste for a solar cell electrode comprising a metal powder, a glass frit, and an organic vehicle, wherein the discharge amount factor A of the bus-bar electrode can be calculated by Equation 1 below, and the discharge amount factor B of the finger electrode can be calculated by the following Equation 2, and |AB| relates to a conductive paste for a solar cell electrode, characterized in that it is 0.100 or less.
A=(Slip velocity?10)/(G?0.01)[Equation 1]
B=1/(G?0.01)[Equation 2]

A biofabrication method for producing cellulose-based materials. The method includes providing active cellulose-producing bacteria such as Gluconacetobacter and culturing media in a container; combining organic additives or inorganic additives with the active cellulose-producing bacteria in the container to produce a cellulose hydrogel matrix composed of entangled bacteria-produced cellulose nanofibers; controlling a concentration of the additives in the cellulose hydrogel matrix; and exposing the cellulose hydrogel matrix in selected thermal environment to create a biofabricated functional material.

The present invention relates to a power cable comprising a metallic electric conductor surrounded by one or more semiconductive layer and one or more insulating layer, said cable having at least one metallic element made of aluminium, wherein a corrosion inhibitor is provided in direct contact with said at least one metallic element made of aluminium, and wherein said corrosion inhibitor is a corrosion inhibitor of formula (I).