4 results about "Fast charging" patented technology

A charge pump control circuit that four main parts: a clock control circuit; a clock switch and driver circuit; a pump stage; and a dynamic load control circuit. The clock control circuit has a dynamic load that is controlled by the dynamic load control circuit. When the charge pump control circuit is enabled, the dynamic capacitive load is applied which incorporates a delay allowing the high frequency clock to control the pump stage and quickly charge the output to the desired boosted voltage. This provides a very fast boosted output voltage during a startup condition. Once the desired output voltage is realized, the dynamic capacitive load is disabled and the low frequency clock takes over the operation. During each low frequency clock cycle, the high frequency clock is enabled for several cycles per cycle of the low frequency clock.

The invention belongs to the technical field of waste electrode material recovery, and particularly discloses a combined treatment method of waste lithium ion battery black powder. The method comprises the following steps: putting the waste lithium ion battery black powder into a strong oxidizing acid liquor for oxidation treatment, and then carrying out solid-liquid separation to obtain oxidizedpowder; carrying out granulation treatment on the powder subjected to oxidation treatment to obtain secondary particles; heating the secondary particles to 600-1200 DEG C at the heating speed of 20-50DEG C/min, and carrying out heat preservation roasting under the pressure of 10-500 Pa; carrying out water leaching on the roasted materia,l and then carrying out acid leaching treatment; and mixingthe obtained leaching solution with the oxidation treatment solution obtained in step 1, and recovering a positive electrode material, wherein leaching residues obtained through acid leaching are recycled graphite. According to the technical scheme, the combined treatment of a positive electrode and a negative electrode can be realized, in addition, the graphite material with high electrochemicalactivity, particularly high fast charging stability, can be obtained, and a positive electrode material can be obtained through high-recovery-rate recovery.

The invention discloses a fast charging system capable of enhancing and protecting a storage battery of a detector. The fast charging system comprises a chip U2, a capacitor C4, an inlet conversion circuit, a chip input circuit, a conversion output circuit, a feedback protection circuit and an output enhancement circuit, wherein a positive electrode of the capacitor C4 is connected with a CONT pin of a chip U1 and a negative electrode is connected with a GND pin of the chip U2; the model number of the chip U2 is NE555; a VCC pin of the chip U2 is connected with an RESET pin; a THRES pin of the chip U2 is connected with a TRIG pin; the inlet conversion circuit and the chip input circuit are connected in series and then are connected with the chip U2; the conversion output circuit and the feedback protection circuit are connected in series and then are connected with the chip U2; and the output enhancement circuit is connected with the chip U2. By the fast charging system capable of enhancing and protecting the storage battery of the detector, a mobile power supply of the detector can be fast charged; the charging efficiency is improved; and the using effect of the detector is further improved.

The invention discloses a novel electrode material of a supercapacitor, wherein the novel electrode material of the supercapacitor is carbon carbide material/graphene oxide/chitosan. Polypyrrole composite is a kind of carbon/graphene oxide/chitosan composite under protective atmosphere. Polypyrrole composites are prepared by sintering and carbonization, and the carbonization temperature is 800 DEGC-900 DEG C. The supercapacitor of the invention comprises a supercapacitor, a connecting ring is slidably connected on the side wall of the supercapacitor, and the connecting ring can directly mountthe supercapacitors connected together on a circuit board for welding, the welding is more convenient, and the connecting ring can rotate. A long chain of that chitosan and the polypyrrole molecule are uniformly disper and loaded on graphene oxide and carbon material to form a three-dimensional open pore structure, which is favorable for the charged particles to diffuse to the electrode interface, has good cycle performance, wide work range, fast charging and the like, and has the advantages of larger specific surface area and more active sites.