2 results about "Pressure system" patented technology

The invention discloses a method for lowering water content in a flexibly packaged lithium ion battery in a pre-charging formation process, and belongs to the technical field of the lithium ion battery. According to the method, in the pre-charging formation process of the flexibly packaged lithium ion battery, water content in an electrolyte is absorbed by a molecular sieve so as to lower the water content in the battery; for the flexibly packaged lithium ion battery reserved with an air bag and to be subjected to pre-charging formation, the molecular sieve is sealed in the air bag, and the molecular sieve and the air bag are removed together after pre-charging formation is completed, and then battery packaging is performed; for the flexibly packaged lithium ion battery adopting a negative pressure system for pre-charging formation, the molecular sieve is put in an electrolyte loop or an electrolyte storage bottle of the negative pressure system; by adoption of the method, water content in the battery can be effectively lowered; water content which enters the battery electrolyte from the environment is absorbed by the molecular sieve, so that influence to the interior of the battery from the external environment in the pre-charging formation process can be lowered; and in addition, the operation is simple and convenient.

A manual fogging device for high-voltage salt fog test relates to the technical field of recycling equipment to extract high-potassium microparticle mixed fertilizer. The manual fogging device for high-voltage salt fog test is structurally characterized in that hanging ropes are hung to a cross beam, a frame is fixed to the cross beam via the hanging ropes, a weight is fixed to the bottom of the frame via ropes, the frame and the ropes are covered with rain cloth, a nozzle is arranged in the frame, the rear end of the nozzle is communicated with a pressure system through an air duct, and a side fog inlet of the nozzle is communicated with a water tank via a water pipe. The manual fogging device for high-voltage salt fog test has the advantages that the manual fogging device for high-voltage salt fog test has good high-voltage test insulation and can be precisely adjusted, and a fogging function for quick setup in a limited area can be achieved.