The demand for thinness of consumer electronics has created the dominant position of soft lithium batteries. The pursuit of "light" and "thin" in portable consumer electronics products, represented by mobile phones, matches the core advantages of soft lithium batteries; Moreover, the high homogeneity and market concentration of consumer battery products make the specifications of the soft bag battery highly consistent, establish the advantage of product consistency, and establish the dominant position of the soft bag battery in the field of consumption.