Abstract: In the technical field of lithium ion batteries, disclosed is a wet synthesis method of a high-nickel NCMA quaternary precursor. The method includes synthesizing solid tiny crystal nuclei of the NCMA quaternary precursor in a first reactor, and prompting the crystal nuclei of the quaternary precursor to grow to a certain particle size in a second reactor, wherein in the first reactor, an upper feeding mode is used to continuously produce the solid tiny crystal nuclei of the NCMA quaternary precursor. In the second reactor, an upper-and-lower dual feeding mode is used to prompt the continuous growth of the solid tiny crystal nuclei of the NCMA quaternary precursor. During a washing process, the NCMA quaternary precursor is washed with a mixed alkali solution of sodium carbonate and sodium hydroxide at certain concentration, so that Na can be reduced below 50 ppm and sulfur can be reduced below 800 ppm.

Abstract: A clamp type ultrasonic processor comprises a transducer assembly and a functional gripper. The transducer assembly comprises a transducer (1) and an amplitude transforming shaft (2) attached thereto. At least one transducer assembly is connected to the functional gripper. The functional gripper comprises an irradiation front line shaft-approximal block (3) and an irradiation front line tube-supporting block (4), and a functional gripper chamber (8) is provided in the functional gripper for accommodating an ultrasonic irradiation receiver. The irradiation front line shaft-approximal block (3) and the irradiation front line tube-supporting block (4) are connected to grip tightly the ultrasonic irradiation receiver to be irradiated. Irradiation front line shaft-approximal block (3) and/or the irradiation front line tube-supporting block (4) are connected to the amplitude transforming shaft (2). An application of the clamp type ultrasonic processor and its application in metal production are also provided.

Abstract: A clamp type ultrasonic processor comprises a transducer assembly and a functional gripper. The transducer assembly comprises a transducer (1) and an amplitude transforming shaft (2) attached thereto. At least one transducer assembly is connected to the functional gripper. The functional gripper comprises an irradiation front line shaft-approximal block (3) and an irradiation front line tube-supporting block (4), and a functional gripper chamber (8) is provided in the functional gripper for accommodating an ultrasonic irradiation receiver. The irradiation front line shaft-approximal block (3) and the irradiation front line tube-supporting block (4) are connected to grip tightly the ultrasonic irradiation receiver to be irradiated. Irradiation front line shaft-approximal block (3) and/or the irradiation front line tube-supporting block (4) are connected to the amplitude transforming shaft (2). An application of the clamp type ultrasonic processor and its application in metal production are also provided.