lithium-ion

Nanotechnology helps the battery pack charge fast but lasts a long time
US scientists have found that lithium-ion batteries or nickel metal hydride batteries are often degraded during operation as they are charged and discharged quickly.
Hitachi manufactures durable batteries for 10 years
Hitachi has successfully researched a new material that could extend its lithium-ion battery life to two times, the longest time being over 10 years.