Lithium ion battery, preparation method thereof and electric equipment

The invention relates to the technical field of lithium ion batteries, and provides a lithium ion battery, a preparation method thereof and electric equipment. The lithium ion battery comprises a positive plate, a negative plate and a diaphragm arranged between the positive plate and the negative plate, the positive plate comprises a positive current collector and a positive active layer distributed on the positive current collector, and the negative plate comprises a negative current collector and a negative active layer distributed on the negative current collector; a first infiltration channel is distributed on the positive electrode active layer and comprises a plurality of concave points; a second infiltration channel is distributed on the negative electrode active layer and comprises a plurality of grooves which are communicated with one another; and a third infiltration channel is distributed on the diaphragm and comprises a plurality of infiltration lines. According to the lithium ion battery provided