The present invention provides an aqueous coating liquid for forming a magnesium oxide film that comprises: (a) a magnesium carboxylate derived from a carboxylic acid having 1 to 6 carbon atoms, (b) a surfactant, (c) a polyhydric alcohol compound, and (d) ...

A process for producing a boric acid ester compound which comprises esterifying a compound represented by the formula (1): X - ÄO(AO)n - HÜa wherein X represents a group independently selected from a residue of a compound having 1 to 6 hydroxyl groups, a...

The invention provides an electrolyte for secondary battery having a high ionic conductivity and an excellent safety and a secondary battery having an excellent cycle life performance comprising such an electrolyte. In other words, the invention lies in an...