New structure lead-acid batteries

The lead-acid battery is the oldest secondary battery,and it is also a new type of green energy source,which possesses a lot of models and an extensive use.With the development and demands of environment protection and resource utilization,new kinds or new structures of batteries come forth.Their structures and properties are presented simply in this paper,including ultrabattery,bipolar lead-acid battery,spirally wound lead-acid battery,tubular colloid lead-acid battery.