6results about How to "Good floating performance" patented technology

The present application provides an electrochemical device and an electronic device, comprising a positive electrode, a negative electrode, a separator and an electrolyte, wherein the electrolyte comprises fluoroethylene carbonate and a trinitrile compound, wherein the mass percentage of the fluoroethylene carbonate is A%, 4≤A≤10, the mass percentage of the trinitrile compound is B%, 1≤B≤3 based on the mass of the electrolyte, and the positive electrode active material of the positive electrode comprises a metal element M, wherein the metal element M comprises at least one of Ti, Mg or Al, and the content of the metal element M in the positive electrode active material is C ppm, wherein C and B satisfy: 7≤C×B / 1000≤27. The present application improves the floating charge performance and cycle performance of the electrochemical device.

The invention relates to an electrochemical device and an electronic device comprising the same. The electrochemical device comprises a positive electrode, a negative electrode and an electrolyte, the positive electrode comprises a positive electrode current collector and a positive electrode active material layer located on the positive electrode current collector, the positive electrode active material layer comprises a positive electrode active material, based on the mass of the positive electrode active material layer, the mass percentage of the positive electrode active material is M%, the value range of M is 95-99, the cracking width of the surface of the positive electrode active material layer is W mm, and M and W meet the condition that M / W is larger than or equal to 47.5. The electrochemical device provided by the invention has reduced DC internal resistance and improved capacity retention rate, low temperature performance and floating charge performance.

The present application relates to an electrochemical device and an electronic device comprising the same. The electrochemical device of the present application comprises: a positive electrode, a negative electrode and an electrolyte, the positive electrode comprising a positive electrode current collector and a positive electrode active material layer on the positive electrode current collector, the positive electrode active material layer comprising a positive electrode active material, wherein the mass percentage of the positive electrode active material is M% based on the mass of the positive electrode active material layer, M ranges from 95 to 99, and the cracking width of the surface of the positive electrode active material layer is W mm, wherein M and W satisfy: M / W≥47.5. The electrochemical device provided by the present application has reduced direct current internal resistance and improved capacity retention rate, low temperature performance and floating performance.

The application discloses a long-acting hydrogen-releasing microsphere in the stomach and use of the microsphere as a drug in treatment of gastritis, and belongs to the field of pharmaceutical preparations and hydrogen treatment. The composition provided by the application is composed of a hydrogen production micro-particle as a core and a sustained-release agent composed of hydroxypropyl methyl cellulose and ethyl cellulose. By selecting specific components and processes, the microsphere has good floatability and long-acting hydrogen-releasing capacity. The microsphere can float in the gastric juice environment and gradually release hydrogen, so that the sustained anti-oxidation and anti-inflammatory effects are realized, and the microsphere is suitable for treatment of gastric inflammation.

The present application relates to an electrochemical device and an electronic device containing the same. The electrochemical device of the present application includes: a positive electrode, a negative electrode and an electrolyte, the positive electrode includes a positive electrode current collector and a positive electrode active material layer located on the positive electrode current collector, the positive electrode active material layer includes a positive electrode active material, wherein based on the mass of the positive electrode active material layer, the mass percentage of the positive electrode active material is M%, the value range of M is 95 to 99, and the crack width on the surface of the positive electrode active material layer is Wmm, wherein M and W satisfy: M / W≥47.5. The electrochemical device provided in the present application has a reduced DC internal resistance and improved capacity retention, low temperature performance and floating charge performance.

This application discloses an electrolyte, an electrochemical apparatus, and an electronic apparatus. The electrolyte of this application includes ethyl propionate, propyl propionate, ethylene carbonate, and propylene carbonate, where based on a total mass of the electrolyte, a mass percentage of ethyl propionate is a%, a mass percentage of propyl propionate is b%, a mass percentage of ethylene carbonate is c%, and a mass percentage of propylene carbonate is d%, where 20≤a+b≤50, 0<c / d<1, and 15≤c+d≤50. The electrolyte provided in this application can significantly improve floating charge performance of electrochemical apparatuses at high voltage.