Separator for alkaline cell and alkaline cell prepared by using this separator.

摘要

The invention provides a novel separator which is used for preparing an alkaline cell comprising substrate of separator and 0.1% to 10% by weight of amorphous ultra fine particles of titanium dioxide and/or hydrated titanium dioxide having a maximum of 500 ANGSTROM of the primary particle diameter and a minimum of 100 m<2>/gram of the specific surface area, and in addition, the invention also provides an alkaline cell which incorporates the separator featuring the above constitution. As is clear from the foregoing description, the separator embodied by the invention features the improved capability to retain electrolytic solution, improved resistivity against alkali, and the least storage of residual gas during charge. Furthermore, the separator embodied by the invention minimizes the electrical resistance, improves the resistivity against oxidation, and prevents dendrite from occurrence.