Power lithium battery for electric vehicle

The utility model discloses a power lithium battery for an electric vehicle, which comprises one layer of multiple layers of bipolar unit chips, battery cores of diaphragms, electrolytic solution and a casing; the bipolar unit chips are composed of conductive substrates and anode active substance layers at one surfaces thereof and cathode active substance layers at the other surfaces; bipolar unit chips are spaced out by the diaphragms, being superposed according to the order that one surface of the cathode active substance layer of one bipolar unit chip is opposite to one surface of the anode active substance layer of the other one bipolar unit chip, the bipolar unit chips and two ends of the diaphragms are sealed with insulation materials; the casing is arranged outside the battery core, and the electrolytic solution is filled in the casing. The utility model has advantages of high voltage, high specific power, high safety and large charge capacity. The coating layers of the bipolar unit chips can be approp