Lithium-ion battery has become the most popular battery in aviation，aerospace，and equipment applications because of its high energy density，long cycle life，and no memory effect.Fast-charged lithium-ion battery refers to the lithium-ion battery with a large rate of charging capacity.Ordinary lithium-ion batteries mainly have low charging rates.At the rate of 1 C，a battery takes 1 h to 1.5 h to be fully charged.After the fast-charged lithium-ion battery technology is adopted，the charging time can be greatly shortened.For example，at the rate of 3 C，the charging time can be reduced to about 30min.In the military field，increasing the charging rate can shorten the response time of various loads，and thus improve their flexibility and real-time performance.In this paper，the mechanism of fast-charged lithium-ion battery is analyzed.A 1.0 Ah fast-charged lithium-ion battery is prepared through the power-type design process，taking the ratio-type ternary material Ni-Co-Mn(NCM) as the cathode and amorphous-coated graphite as the anode.The battery has the specific energy up to 205 Wh/kg，and can constantly be charged and discharged at a rate of 5 C.At the rate of 3 C，the capacity retention of the battery is greater than 80% after 1 000 fast-charged and discharged cycles，demonstrating good fast-charged capability and cycle stability.