急...advantages and disadantages of chemcial cell??(20點!!)

a=advantage
d=disadvantage

1.
a/ cheap
d/ service life of the battery is short, with a shelf life of around 1.5 years

2.
a/ can be disposed of in the regular trash
d/ prone to leaking potassium hydroxide, a caustic agent that can cause respiratory, eye and skin irritation

3.
a/ have a long life and very high energy/weight ratio
d/ expensive, due to high price of silver

4.
a/ provide constant voltage at low discharge currents
d/ mercury is toxic

5.
a/ provide high current, rechargeable
d/ improper disposal will damage environment

6.
a/ rechargeable
b/ suffer from a so-called "memory effect"

1.碳鋅電池最平，穩定，缺點是壽命短
2.鹼性電池壽命較長，穩定，但比較貴
3.不明
4.汞電池體積最小最輕，但汞有毒，使用時要小心
5.不明
6.充電池是唯一可充電的電池，但不能與一般廢物一同處理，否則對環境構成極大污染

1.cheap
2.longer time to use
3.common use-----watch,lasers........
4.& 5.(I don't know)
6.can rechargable