Minggu, 19 September 2010

batteray in electic car

Rechargeable battery materials used in electric vehicles include lead-acid ("flooded" and VRLA), NiCd, nickel metal hydride, lithium-ion, Li-ion polymer, and, less commonly, zinc-air and molten salt. The Lithium iron phosphate battery is currently one of the most promising electric vehicle battery variants due to its light weight, high specific energy, and lack of thermal runaway issues that have plagued laptop computer lithium-ion batteries. The amount of electricity stored in batteries is measured in ampere hours or coulombs, with the total energy often measured in watt hours.

Historically, EVs and PHEVs have had problems with high battery costs, limited range between battery recharging, charging time, and battery lifespan, which have limited their widespread adoption. Ongoing battery technology advancements have reduced many of these problems; many models have recently been prototyped, and a few future production models have been announced.

from: wikipedia

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