Abstract: A voltage tracking circuit is provided. The voltage tracking circuit includes first and second P-type transistors and a control circuit. The drain of the first P-type transistor is coupled to a first voltage terminal. The gate and the drain of the second P-type transistor are respectively coupled to the first voltage terminal and a second voltage terminal. The control circuit is coupled to the first and second voltage terminals and generates a control voltage according to the first voltage and the second voltage. The sources of the first and second P-type transistors are coupled to an output terminal of the voltage tracking circuit, and the output voltage is generated at the output terminal. In response to the second voltage being higher than the first voltage, the control circuit generates the control signal to turn off the first P-type transistor.

Abstract: The present disclosure provides a polyimide polymer, which includes a repeating unit represented by formula (I). Formula (I) is defined as in the specification. The present disclosure further provides a polyimide mixture and a polyimide film, wherein the polyimide mixture is prepared by the polyimide polymer, and the polyimide film is prepared by the polyimide mixture.

Abstract: The present disclosure provides a diamine compound, which includes a structure represented by formula (I). Formula (I) is defined as in the specification. The present disclosure further provides an amide bond-containing polymer, a polyimide, a polybenzoxazine, a thermosetting resin and a copolymerized thermosetting resin prepared by the diamine compound including the structure represented by formula (I).

Abstract: The present disclosure provides a polyimide polymer, which includes a repeating unit represented by formula (I). Formula (I) is defined as in the specification. The present disclosure further provides a polyimide mixture and a polyimide film, wherein the polyimide mixture is prepared by the polyimide polymer, and the polyimide film is prepared by the polyimide mixture.

Abstract: The present disclosure provides a diamine compound, which includes a structure represented by formula (I). Formula (I) is defined as in the specification. The present disclosure further provides an amide bond-containing polymer, a polyimide, a polybenzoxazine, a thermosetting resin and a copolymerized thermosetting resin prepared by the diamine compound including the structure represented by formula (I).

Abstract: A battery includes: a container; an electrolyte received in the container; and first and second electrodes disposed in the electrolyte and having different electrical potentials upon exposure to the electrolyte.

Abstract: The invention discloses a metal pattern formation system produced in the following steps: an organic liquid is first printed on a substrate to form a base pattern. A metal is then evaporated to generate several metal particles for covering the printed substrate. At last, the substrate is heated to vaporize the base pattern, and the metal particles adhered to the substrate forms a metal pattern complementary to the base pattern.

Abstract: A battery includes: a container; an electrolyte received in the container; and first and second electrodes disposed in the electrolyte and having different electrical potentials upon exposure to the electrolyte.

Abstract: The invention discloses a metal pattern formation method including the following steps. At first, an organic liquid is printed on a substrate to form a base pattern. Afterward, a metal is evaporated to generate several metal particles for covering the printed substrate. At last, the substrate is heated to vaporize the base pattern, and the metal particles adhered to the substrate forms a metal pattern complementary to the base pattern.