Secondary battery electrode, and method for producing same
摘要
說明書
In contrast, the active material bulk may be a sintered body, and the active material bulk which is sintered body may be produced by applying heat to a raw material (or molded body). Specifically, when the active material bulk is a sintered body, the production method according to an exemplary embodiment of the present invention may include introducing a raw material to a mold and molding the material to produce a molded body; and applying heat to the molded body to produce a sintered body. Here, the molded body production step and the sintered body production step may be performed simultaneously. That is, the sintered body may be produced by applying physical force together with heat simultaneously to the raw material. A specific example of applying mechanical force (physical force) together with heat may include hot press sintering and the like. Heat may be applied by a heat treatment using a common furnace, but is not limited thereto, and the heat application may be performed using any method known to be used for producing a sintered body such as spark plasma sintering (SPS). Here, the atmosphere may be controlled, considering the kind of specific electrode active materials during the heat treatment (heat application), of coarse. As an example, when the electrode active material includes a carbon-based active material, the heat treatment may be performed in a non-oxidizing atmosphere such as nitrogen and argon, and when the electrode active material includes an oxide-based active material, the heat treatment may be performed in an oxygen-containing atmosphere such as the air.
