BMW, Hanyang University develop high energy density lithium-ion batteries
Full cell generates an energy density of 350 Wh/kg
Researchers at Hanyang University in Korea, along with the BMW Group, have developed a high energy lithium-ion battery, reports Green Car Congress. The battery comprises a carbon nanotube (CNT)-Si composite anode with a discharge capacity of 2364 mAh/g at a tap density of 1.1 g/cm3, a two-sloped full concentration gradient (TSFCG) Li[Ni0.85Co0.05Mn0.10]O2 cathode yielding a discharge capacity of 221 mAh/g. The full cell generates an energy density of 350 Wh/kg with a capacity retention for 500 cycles at 1 C rate.
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