To protect the environment that mankind relies on, the consciousness of environmental protection is enhanced day by day. Hazardous substances contained in the battery are being given more and more attention by the Industry nowadays: stop producing mercury-containing battery, develop (alkaline) zinc manganese battery that is mercury-free; produce MH/Ni battery instead of Cd/Ni battery, etc. In brief, Environment-friendly and Non-pollution is the development trend of the battery products as well as the Industry.