2results about How to "Strong charging ability" patented technology

The application provides a negative electrode sheet and a battery, comprising a negative electrode current collector and negative electrode active material layers coated on both sides of the negative electrode current collector, the negative electrode current collector comprises a flat area and a circular arc area, a first negative electrode active material layer is coated on one side of the negative electrode current collector located at the inside of winding, a second negative electrode active material layer is coated on one side of the negative electrode current collector located at the outside of winding, a third negative electrode active material layer is coated on the surface of the second negative electrode active material layer away from the flat area, and a fourth negative electrode active material layer is coated on the surface of the second negative electrode active material layer away from the circular arc area; the lithium intercalation capacity of the fourth negative electrode active material layer is stronger than that of the first negative electrode active material layer, the second negative electrode active material layer and the third negative electrode active material layer; the fourth negative electrode active material layer is coated on the surface of the circular arc area, and the lithium intercalation capacity of the fourth negative electrode active material layer is strong, so that the lithium intercalation capacity of the negative electrode sheet located at the circular arc area at the outside of winding is improved, and the problem of lithium precipitation in the circular arc area of the negative electrode sheet is solved.

The utility model relates to inverter technical field discloses a new energy box type transformer uninterrupted power supply system, including box body, the box body upper surface is provided with display screen, and the side is provided with electric energy transmission interface, the electric energy transmission interface includes commercial power input interface, solar panel voltage input interface, battery direct current input output interface and alternating current output interface, the commercial power input interface accesses commercial power, the solar panel voltage input interface connects photovoltaic panel array, the battery direct current input interface connects battery bank, the utility model discloses can realize commercial power complementation, has high performance, high reliability, with the effect that the load capacity is strong.