Abstract: The present application relates to a voltage drop circuit assembly of a lithium battery and a 1.5V lithium battery. The voltage drop circuit assembly includes a PCB, an outer conductive cap and an inner conductive cap, a front surface of the PCB is provided with a positive copper ring and a negative copper ring, the positive copper ring is electrically connected with the outer conductive cap, the outer conductive cap is used as a low-voltage output positive electrode, the negative copper ring is used as a common negative electrode, a back surface of the PCB is provided with a high-voltage input copper ring, the high-voltage input copper ring is electrically connected with the inner conductive cap, and the inner conductive cap is used as a high-voltage input positive electrode.

Abstract: The present application relates to a voltage-reduced lithium battery and a manufacturing method thereof. The voltage-reduced lithium battery includes a circuit assembly, a plastic frame, a wound battery core assembly, a first metal housing, a second metal housing, an insulating seal and an insulating sheath, wherein the circuit assembly and the plastic frame are arranged in the first metal housing, the wound battery core assembly is arranged in the second metal housing, the first metal housing and the second metal housing are in vertical butt connection and fixed by circumferential welding, the insulating seal is configured to seal the second metal housing, and the insulating sheath covers the first metal housing and the second metal housing.

Abstract: The present application relates to a 1.5V lithium battery. The lithium battery includes a circuit assembly, a plastic frame, a wound battery core assembly, a first metal housing, a second metal housing, a first insulating seal and an insulating sheath. The wound battery core assembly is arranged in the second metal housing, the first metal housing and the second metal housing dock with each other and fixed by circumferential welding, and the circuit assembly includes a PCB, a low-voltage positive cap, a high-voltage positive connecting piece and a negative elastic piece. In the present application, the circuit assembly can stably output a low voltage of 1.5V.

Abstract: The present invention provides a damping material and a damping sheet made therefrom. Specifically, the present invention provides a damping material comprising 10-50 wt % of a block copolymer elastomer; 5-40 wt % of a specific-length fiber; 5-45 wt % of a thermoplastic non-elastomeric polymer; 5-50 wt % of a tackifier; 0-50 wt % of an inorganic filler; and 0-30 wt % of a flame retardant based on the total weight of the damping material. The damping material and the damping sheet made therefrom according to the present invention have high damping properties, a wide application temperature range and a low density, and can serve as a novel damping material in the current automobile, rail transit, construction and electrical appliance industries.

Abstract: The disclosure provides a reaction kettle, a polypeptide synthesis cleavage system and their use in polypeptide synthesis or cleavage. The reaction kettle comprises: (1) a kettle body; (2) a stirring device located at the upper part of the kettle body and extending to the interior of the kettle body; (3) a liquid feed port, a solid feed port, an inert gas inlet and an inert gas outlet located at the upper part of the kettle body; (4) a liquid discharge port and a liquid guiding groove at the bottom of the kettle body, wherein the liquid discharge port is located at the lowest point of the liquid guiding groove; (5) a filtering device located above the liquid guiding groove; (6) a solid discharge portpassing through the bottom of the kettle body and the filtering device; and (7) a discharge valve configured at the solid discharge port.

Abstract: The present invention relates to a contact arrangement (1), preferably for a power electronics system, comprising a printed circuit board (2) with a fastening hole (5), comprising a metal sleeve (8) which is inserted into the fastening hole (5), wherein the sleeve (8) makes contact with, preferably is soldered to, the printed circuit board (2), comprising a base (15) on which the sleeve (8) lies in order to make electrical contact, and comprising a fastening element (11) which protrudes through the sleeve (8), wherein one end of the fastening element (11) is fixedly connected to the base (15) and a head (12) is formed or arranged at the other end, wherein the head (12) of the fastening element (11) lies only on the sleeve (8) and not on the printed circuit board (2), and wherein the sleeve (8) projects beyond the printed circuit board (2) by way of a first projection (10) on that side which faces the base (15), wherein the first projection spaces apart the printed circuit board (2) and the base (15).

Abstract: The present invention relates to a contact arrangement (1), preferably for a power electronics system, comprising a printed circuit board (2) with a fastening hole (5), comprising a metal sleeve (8) which is inserted into the fastening hole (5), wherein the sleeve (8) makes contact with, preferably is soldered to, the printed circuit board (2), comprising a base (15) on which the sleeve (8) lies in order to make electrical contact, and comprising a fastening element (11) which protrudes through the sleeve (8), wherein one end of the fastening element (11) is fixedly connected to the base (15) and a head (12) is formed or arranged at the other end, wherein the head (12) of the fastening element (11) lies only on the sleeve (8) and not on the printed circuit board (2), and wherein the sleeve (8) projects beyond the printed circuit board (2) by way of a first projection (10) on that side which faces the base (15), wherein the first projection spaces apart the printed circuit board (2) and the base (15).