Secondary battery electrode, and method for producing same
摘要
說明書
In the conventional electrode production method of applying, drying, and rolling a slurry, the characteristics of the slurry themselves such as viscosity or dispersibility of the slurry which is a fluidized bed, a specific application method, or physical (mechanical) properties of a material contained in the slurry, drying conditions of the applied film, and the like directly affects a structure of the active material layer.
That is, as a production technique of an electrode using an active material slurry largely depends on dynamic elements to determine the structure of the active material layer, it is practically very difficult to precisely control the structure of the active material layer, and it is difficult to secure structural uniformity in a large area. Furthermore, there is also a restriction on the thickness of the active material layer which may be produced by the application process. In addition, when the thickness of the electrode should be increased, a drying time in a drying process is increased, and thus, process parameters should be changed, for example, a length of the drying furnace is increased. Thus, there is also a problem of requiring building a new process facility.
