Lead-acid batteries small-size sealed

For small-size portable rechargeable batteries, the collection of spent nickel cadmium batteries started in 1985 and has been pursued in combination with the collection of nickel metalhydride batteries, lithium ion batteries and small-size sealed lead-acid batteries. The collection rate of nickel cadmium batteries was over 40% in 2000. 

Lead is used in batteries, inorganic chemicals, pipes, solders, electric wires, etc., but batteries accounted for 72% of the total usage of lead in 1997. Therefore it can be said that batteries play an important role in the recycling of lead. Lead-acid batteries are classified into motor vehicle batteries (for automobiles and motorcycles), industrial batteries (stationary batteries, traction batteries, etc.), small-size sealed batteries (for UPS and consumer products). Table 2.1 shows their shipments. 

It seems that the total shipment of lead-acid batteries has remained at much the same level in the past five years and that motor vehicle batteries, which accounted for 76.5% of all lead-acid batteries in 1997, have seen few changes, while industrial batteries and small-size sealed batteries have tended to gradually increase and gradually decrease, respectively. 

Approximately 80% of all small-size sealed lead-acid batteries are estimated to be used for commercial purposes, such as UPS, and should be treated in the same way as industrial batteries, as stated above. 

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