Active additive for accumulator, activable or regeneratable accumulator and method for activating or regenerating said accumulator

Abstract

The active additive is solution containing carbon microparticles with -CO or -COH or -CO2 chemical functional radical being attached to its surface. The solution can be treated into colloidal state or powder body etc. Adding the active additive into accumulator, and carrying out charging and discharging circles for accumulator makes the carbon microparticles be adsorbed to polar plates of accumulator so as to form dense conductive layer and adsorption layer with large surface area. Thus, the accumulator possesses fine characteristics: (1) improving performance effectively, and increasing service life; (2) reducing internal resistance; (3) charging accumulator with large current without increasing temperature acutely. The invention is applicable to new products, products in using, or degraded products, even regenerative disused accumulator. The invention also discloses activated or regenerated accumulator and method for activating or regenerating accumulator.

Description

technical field [0001] The invention relates to an active additive applied to a battery, a battery that can be activated or regenerated using the active additive, and a method for activating or regenerating the battery, in particular to improve the overall performance of the battery and regenerate a battery with degraded performance or discarded. Background technique [0002] At present, the storage batteries generally used in China mainly have performance problems and environmental pollution caused by discarded batteries. [0003] The battery uses its internal chemical changes to convert chemical energy into electrical energy. The positive and negative ions in the electrolyte and the electrodes serve as electrical conduction inside the battery, while the flow of electrons completes the path outside. In application, it is generally divided into primary battery and secondary battery or storage battery according to whether it can be reused. The primary battery uses the active ...

AI Technical Summary

Problems solved by technology

For example, in Chinese Patent Case Nos. CN 1078753C and CN 1440087A, high-voltage electrolytic oxidation is used to prepare carbon suspension; electrolytic oxidation is not only extremely power-consuming, but the carbon suspension produced by this method is pH=2~3 (strong acid), so it must be treated with a strong alkali solution to pH=6~7 before filling in the lead battery electrolyte (pH=6~7). The carbon suspension treated with lye is easy to be mixed with OH - Hydroxide ions, and the active substance precipitate (white precipitate Pb(OH) 2 ), so that the active material will be consumed and the electricity storage performance will be reduced; in addition, the surface of the carbon particles contained in the carbon suspension must have three functional groups such as hydroxyl (-COH), carbonyl (-CO) and carboxyl (-COOH) group, but due to factors such as the electrolysis voltage and the individual differences in the electrolyte used in the electrolysis method, the difference in the proportion of the three functional groups is caused, and the carboxyl (-COOH) functional group will affect the acidity and alkalinity of the electrolyte, so it is not conducive to use as The application of battery additives; in practice, it is difficult to control the concentration of carbon suspension with the critical current of electrolysis, so it is not easy to control the dosage added to the electrolyte of lead battery

According to the above argument, it can be known that the carbon suspension additive prepared by the electrolytic oxidation method does not improve the performance of the battery well.

In addition, in China Taiwan's TW-I 268005 invention case, it also utilizes heating to prepare carbon suspension, and is applied in the electrolyte of lead-acid storage battery and / or mature pole plate, and the active additive of this lead-acid storage battery It is characterized by carbon particles with hydroxyl (-COH), carbonyl (-CO) and / or carboxyl (-COOH) attached to the surface. However, the carboxyl (-COOH) functional group will affect the acidity and alkalinity of the electrolyte, so it does not Favorable for use as a battery additive and thus limited only to lead-acid battery applications

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