The present disclosure is directed to a polyacetal, or polyoxymethylene (POM), base composition which contains an additive package containing additives suitable for food processing applications. Of particular advantage, POM produced according to the present disclosure may demonstrate low formaldehyde emissions, extractables, or both, when measured by standard methods without containing any formaldehyde scavenger packages.

The present disclosure is directed to a polyacetal, or polyoxymethylene (POM), base composition which contains an additive package containing additives suitable for food processing applications. Of particular advantage, POM produced according to the present disclosure may demonstrate low formaldehyde emissions, extractables, or both, when measured by standard methods without containing any formaldehyde scavenger packages.

An electrode plate includes a current collector and a film layer comprising an active material and an adsorptive polymer disposed on at least one side of the current collector, wherein: the adsorptive polymer satisfies: 3m.sub.1/n35, in which n represent a mass of the adsorptive polymer, and m.sub.1 represents a mass of a first substance that is obtained by: adding the adsorptive polymer to a predetermined electrolytic solution at 45 C. to form a polymer system, allowing the polymer system to stand for 60 hours at 45 C. and for 24 hours at 25 C., and then filtering the polymer system through a 200-mesh screen to obtain the first substance; and the adsorptive polymer further satisfies: 1.00m.sub.2/n1.05, in which m.sub.2 represents a mass of a second substance, that is obtained by drying the first substance at 60 C. for 24 hours.