Negative electrode material for zinc-manganese battery and preparation method of negative electrode material

Abstract

The invention discloses a negative electrode material for a zinc-manganese battery. The negative electrode material comprises the following raw materials in parts by weight: 40-80 parts of a base material and 10-40 parts of a conductive carbon material. Through the synergistic effect of a base material compounded by nano zinc powder, molybdenum disulfide and silicon carbide and a conductive carbon material compounded by carboxylated graphene quantum dots and modified carbon nanotubes, the overall capacitance, conductivity and cycle performance of the battery are effectively improved, the service life of the zinc-manganese battery is obviously prolonged, and the negative electrode material is suitable for being popularized in the field of batteries, and has a wide development prospect.

Description

technical field [0001] The invention relates to the field of zinc-manganese batteries, in particular to a negative electrode material for zinc-manganese batteries and a preparation method thereof. Background technique [0002] At present, more and more portable multi-function electronic products with high power consumption are entering the market, such as digital cameras, electric toothbrushes, electric shavers, flashlights and remote control electric toys and so on. Consumers need to choose high-power and large-capacity batteries to meet their usage requirements. It is difficult for ordinary carbon batteries to meet the performance requirements of high-power-consuming electronic products. Although lithium batteries have high capacity and high current performance, due to the use of anhydrous organic electrolyte, flammable and explosive battery accidents often occur, and the price is expensive, so most consumers do not choose this disposable lithium battery. too much. [00...

AI Technical Summary

Problems solved by technology

However, metals such as indium and bismuth are expensive, causing a large cost burden, and the zinc-manganese batteries prepared by them have defects in capacity and cycle effect

On the other hand, their performance is very sensitive to the conductivity of other auxiliary materials in their anodes. Polymers such as polytetrafluoroethylene only act as binders in the manufacture of battery anode materials, and the role is relatively simple. In addition, polymers The addition of ZnMn affects the conductivity of the active material of the zinc-manganese electromagnetic negative electrode, which further reduces the capacity and charge-discharge times of the battery.

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