Fast-charging type lithium ion battery with high energy density

The invention relates to a fast-charging type lithium ion battery with high energy density. The battery includes a positive plate, a negative plate, a separating film, an electrolyte and a shell. Thepositive plate is composed of the following materials, by mass percentage: 99%-95% of a positive electrode active material, 0.5%-2% of a binder, and 0.5%-3% of a conductive agent. The negative plate is composed of the following materials, by mass percentage: 98%-92% of a negative electrode active material, 0.2%-1.5% of a thickening agent, 0.8%-2.5% of a negative electrode binder, and 1%-4% of a negative electrode conductive agent. The beneficial effects of the fast-charging type lithium ion battery with high energy density are that a change in a positive and negative electrode material systemis provided, an electrical core produced based on the formula has an energy density of 230 wh/Kg, can be quickly charged at 1-5 C and quickly discharged at 5-10 C, can be used on extended-range electric vehicles and also elect