Button lithium battery with novel structure

The utility model discloses a button lithium battery with a novel structure. Wherein the shell is formed by a negative electrode cover and a positive electrode shell, a negative plate, a positive plate, a sealing ring and a diaphragm are arranged in the shell, the negative plate is located in the negative electrode cover, the positive plate is located in the positive electrode shell, the diaphragmis located between the positive plate and the negative plate, the sealing ring is arranged between the negative electrode cover and the positive electrode shell, and the outer diameter of the positive plate is larger than that of the negative plate; the periphery of the positive plate is close to the inner wall of the sealing ring or the inner wall of the positive shell. Due to the optimization of the structure, the diameter of the positive plate is enlarged, the weight of the positive plate can be increased by 10-50%, the capacity of the battery can be increased by 5-50%, the service life isprolonged due to the incr