33 results about "Applications of capacitors" patented technology

The invention relates to a preparation method for constructing an ion channel with polyvinyl alcohol as a base at room temperature and its application as a solid electrolyte for a supercapacitor. The material uses polyvinyl alcohol and nucleoside guanine as the main raw materials, and at the same time, boric acid is added to cross-link the polyvinyl alcohol chain, and a hydroxide electrolyte is added to naturally polymerize at room temperature to form a gel. The material is used as a solid electrolyte in a supercapacitor, and has the characteristics of high ionic conductivity, good bendability, and strong self-healing ability. The preparation method of the material is simple, which provides a possibility for wide production and application.

The invention discloses an LDH-based supercapacitor composite electrode material, a preparation method and an application. The MnCo LDH nanowire array based on nickel foam was first prepared by hydrothermal method; then the MnCo LDH / C rough nanowire array based on nickel foam was prepared by calcination and carbonization; and then the NiMn ‑LDH nanosheets and MnCo‑LDH / C nanowires are combined to form a three-dimensional core-shell structure. Compared with other nanostructures such as nanoparticles, the formation of a three-dimensional core-shell nanowire array is conducive to giving full play to its electrochemical activity; the composite material is used as a super When the capacitor electrode material is applied, it can be used as a pseudocapacitive electrode material with high specific capacitance and rate charge and discharge performance; at the same time, it can also be used as anode material for supercapacitor devices with high energy density.

The invention belongs to the technical field of capacitors, and discloses a method for calculating the discharge time of a capacitor, and a mobile terminal. The method comprises the following steps that: a capacitor chip acquires a voltage U1 before the capacitor discharges; the capacitor chip acquires a voltage U2 after the capacitor discharges; the capacitor chip calculates discharge capacity according to the voltage U1 before the capacitor discharges and the voltage U2 after the capacitor discharges, wherein the discharge capacity is calculated according to formulas: Q=C*(U1-U2) and discharge capacity=Q*1 / 3.6milliampere*hour; and the capacitor chip calculates the discharge time of the capacitor according to a clock electrically connected with the capacitor chip, wherein the discharge time of the capacitor is calculated according to a formula: T=discharge capacity / consumed current. By the method, when the voltages on the two sides of the capacitor change, the capacity of the capacitor can be accurately calculated and the time is calculated according to the capacity of the capacitor, so that the application of the capacitor is expanded.