High-capacity lithium manganese battery envelope positive plate

The utility model relates to a high-capacity lithium manganese battery envelope positive plate which comprises a positive plate formed by a positive pole flow concentration body and a two-faced positive pole mixture, and is characterized in that the positive pole flow concentration body is large-porosity three-dimensional aluminium or three-dimensional nickel immersed with the positive pole mixture inside, a diaphragm is covered on the surface of the positive plate, and part of positive pole guide lug is positioned outside of the diaphragm. According to the high-capacity lithium manganese battery envelope positive plate provided by the utility model, large-porosity three-dimensional aluminium or three-dimensional nickel is used as the positive pole flow concentration body, thin type positive plates which are made of the positive pole mixture through pressing are coated on the two surface of the positive pole flow concentration body, the diaphragm is coated on the positive plate, and the obtained single batter