32results about How to "Good charge and discharge cycle" patented technology

The invention relates to a three-dimensional miniature super capacitor electrode manufactured from a nano porous composite material and a manufacturing method thereof, which belong to the technical field of miniature energy-storing appliances and microelectronic mechanical processing. In the three-dimensional miniature super capacitor electrode, a silicon dioxide insulating layer, a metal currentcollecting and extracting layer and an electrode active material layer are sequentially formed on a silicon substrate to form the super capacitor electrode with a three-dimensional structure. The manufacturing method comprises the following steps of: forming a groove with a certain length, width and depth ratio on the silicon substrate through the micro-electromechanical systems (MEMS) etching technique; adhering an electrode active material and a conducting reinforcing agent through an organic adhesive; piling in the groove to form a self-supporting electrode; and etching the side wall of the self-supporting electrode to form the oppositely inserted three-dimensional electrode. The three-dimensional miniature super capacitor electrode adopts a three-dimensional electrode structure vertical to a chip area and extended in the third dimensional direction and has high microminiaturization degree and integration degree, so that the formed super capacitor can provide higher power output when compared with a battery and has better charge and discharge recyclability and higher charge and discharge efficiency.

The invention relates to a high-proportion borate zinc battery electrolyte and a preparation method. The molar ratio of potassium ions or / and sodium ions in the zinc battery electrolyte to borate ions is 0.28-2, and the additive is The total content in the electrolyte ≤ 40g / L. Mix KOH or / and NaOH 2~6.2 mol / L, H3BO3 3.1~7 mol / L, LiOH.H2O 0.1~0.5 mol / L, and water as solvent to form a basic solution, then add cyclohexyl hexaphosphate , isophthalic acid, isophthalic acid monosulfonic acid, micro-nano SiO2 or micro-nano TiO2, stir and let it cool naturally, then filter it with a 400-mesh sieve. The present invention substantially solves the problems of dendrite growth, zinc element transfer, plate deformation and the like during the charge and discharge process of the zinc negative electrode, significantly improves the cycle performance, and provides a reliable technology for making the zinc-based alkaline battery a new generation of power battery Assure.

The invention discloses a lead-acid battery capacity restorer, which comprises an integrated chip IC1, a field effect transistor T1, comparators IC2A, IC2B, IC2C, IC2D, a connection terminal K1 and a parallel access terminal IC2 of the lead-acid battery capacity restorer , connect the lead-acid battery that needs to restore capacity to terminal K1, charge the lead-acid battery with pulse current, and discharge the lead-acid battery during the pulse interval. The invention can effectively stabilize the capacity of the lead-acid battery, suppress the vulcanization reaction, keep the battery with high-efficiency power storage function, and automatically desulfurize the vulcanized battery to form a good charge-discharge cycle inside. Return capacity to original nominal value.

The invention provides an application of a LiI-KI eutectic salt in a low-temperature liquid molten salt lithium battery, a low-temperature liquid molten salt lithium battery and a preparation method thereof, belonging to the field of lithium batteries. The invention provides the application of a LiI-KI eutectic salt as an electrolyte in a low-temperature liquid molten salt lithium battery. In the present invention, the eutectic temperature of the LiI-KI eutectic salt as the electrolyte is 260-265° C., and the operation temperature of the fully liquid molten salt lithium battery can be realized below 300° C. The experimental results show that the low-temperature liquid molten salt lithium battery provided by the present invention has a good charge-discharge cycle, the open circuit voltage is 0.76V, the discharge platform voltage is stable at 0.5-0.6V, the discharge platform is 0.8-0.9V, and the Coulombic efficiency is basically stable at About 97%.

The objective of the present invention is to prevent deterioration and expanding of anode active material and to improve charge-discharge cycle characteristics in a non-aqueous electrolyte secondary battery comprising an anode of which current collector has thereon a thin layer of an anode active material containing a metal. To solve this problem, in a non-aqueous electrolyte secondary battery wherein a thin layer of anode active material containing a metal which absorbs and discharges lithium is formed on a current collector and the thin layer of the anode active material is divided into columns by a gap formed along the thickness thereof, a compound represented by the following formula is contained in the non-aqueous electrolyte.A-N═C═OIn the above formula, A represents an element or a group other than hydrogen.