Advantages and Limitations of Li-ion Batteries?

Advantages and Limitations of Li-ion <A href="http://www.good-battery.com">Batteries</A>?
AdvantagesHigh energy density ！ potential for yet higher capacities.
Relatively low self-discharge ！ self-discharge is less than half that of NiCd and NiMH.
Low Maintenance ！ no periodic discharge is needed; no memory.Limitations Requires protection circuit ！ protection circuit limits voltage and current. <A href="http://www.good-battery.com">Battery </A>is safe if not provoked.
Subject to aging, even if not in use ！ storing the <A href="http://www.good-battery.com">battery </A>in a cool place and at 40 percent state-of-charge reduces the aging effect.
Moderate discharge current.
Subject to transportation regulations ！ shipment of larger quantities of Li-ion <A href="http://www.good-battery.com">batteries </A>may be subject to regulatory control. This restriction does not apply to personal carry-on <A href="http://www.good-battery.com">batteries</A>.
Expensive to manufacture ！ about 40 percent higher in cost than NiCd. Better manufacturing techniques and replacement of rare metals with lower cost alternatives will likely reduce the price.
Not fully mature ！ changes in metal and chemical combinations affect <A href="http://www.good-battery.com">battery </A>test results, especially with some quick test methods.more info:<A href="http://www.good-battery.com">www.good-battery.com</A>