The invention belongs to the technical field of
lithium ion batteries, and particularly relates to a
lithium ion battery. The battery includes a positive plate, a negative plate, isolating films arranged between the positive and negative plates at intervals, and
electrolyte. A negative
electrode active material includes the following components: 98.1-99.8 percent of a negative
electrode active substance, 0-1 percent of a negative
electrode conductive agent, 0.1-1 percent of a negative electrode binder and 0.1-1 percent of a negative electrode stabilizer. The
viscosity of the stabilizer is 2000mPa.S to 15000mPa.S. The negative electrode conductive agent is at least one of carbon
fiber, carbon nanotubes, carbon nanorods and
grapheme, or is a mixture of
carbon black and at least one of carbon
fiber, carbon nanotubes, carbon nanorods,
phosphorus graphite and
grapheme. In comparison with the prior art, the
lithium ion battery has the advantages that the
battery energy density is improved and the
high rate charging / discharging characteristics are improved on the premise of ensuring that the diaphragm is not stripped.