Separator for alkaline cell and alkaline cell prepared by...

Details Separator for alkaline cell and alkaline cell prepared by... Separator for alkaline cell and alkaline cell prepared by...

H - Electricity

01

M

319/52

H01M 2/16 (2006.01)

Patent

CA 2009933

ABSTRACT OF THE DISCLOSURE 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 .ANG. of the primary particle diameter and a minimum of 100 m2/gram of the specific sur- face 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 sepa- rator embodied by the invention features the improved capability to retain electrolytic solution, improved resis- tivity 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.

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