Shorter path increases Li range

摘要

The biggest, or at least most hyped, event of the year was Tesla's Battery day, which came with a host of plans. Among the declarations made on 22 September were its 4680 tab-less lithium-ion cell would bring down $/kWh costs by 14%. The 4680 cylindrical cells promise five times the energy, increase EV range by 16% and deliver six times more power over its existing 2170 batteries, which have an energy density of 247Wh/ kg and a 4.8Ah/17.3Wh capacity.