Abstract: A multilayer marking film is disclosed herein. In some embodiments, a multilayer marking film includes, in sequential order, an adhesive layer, a colored base layer having a first color, and a colored coating layer having a second color, wherein information can be written by laser irradiation on the colored coating layer.

Abstract: According to a system and method for evaluating the dissolution quality of a binder solution for a secondary battery electrode, by preparing an electrode slurry with a binder solution having a predetermined amount or more of cumulative filtration amount or a predetermined level or less of flow rate reduction rate, the quality of an electrode for a secondary battery may be improved.

Abstract: A system for determining a filter for evaluating a dissolution quality of a binder solution for a secondary battery electrode according to the present technology includes: a pressure container which accommodates a binder solution; a pressure medium supply source which supplies pressure medium of a predetermined pressure to the pressure container; a filter which is connected to the pressure container by a pipe; a flow rate measuring unit which measures a flow rate of the binder solution filtered by the filter; and a determination unit which measures a time point when a flow rate reaches a specific value predetermined in consideration of an initial flow rate by repeating measurement of the flow rate using each filter having a different pore size, and determines a filter having a filter size in an optimal pore size range based on the time point.

Abstract: An electronic device according to various embodiments may comprise: a first housing including a first surface and a second surface facing away from the first surface; a second housing including a third surface and a fourth surface facing away from the third surface; a folding part pivotably connecting a side surface of the first housing and a side surface of the second housing facing the side surface of the first housing; a flexible display disposed on the first and third surfaces across the folding part, having a first area corresponding to the first surface and a second area corresponding to the third surface; and a processor.

Abstract: An electronic device according to various embodiments may comprise: a first housing including a first surface and a second surface facing away from the first surface; a second housing including a third surface and a fourth surface facing away from the third surface; a folding part pivotably connecting a side surface of the first housing and a side surface of the second housing facing the side surface of the first housing; a flexible display disposed on the first and third surfaces across the folding part, having a first area corresponding to the first surface and a second area corresponding to the third surface; and a processor, wherein the processor may be configured to: display a first screen within the first area and display a second screen within the second area, in a first state in which the first housing and the second housing are folded out by means of the folding part; recognize that the state of the electronic device is changed from the first state to a second state in which the first housing and the

Abstract: A multilayer marking film is disclosed herein. In some embodiments, a multilayer marking film includes, in sequential order, an adhesive layer, a colored base layer having a first color, and a colored coating layer having a second color, wherein information can be written by laser irradiation on the colored coating layer.