Negative electrode additive of alkaline manganese battery

Abstract

The invention discloses a negative electrode additive of an alkaline manganese battery. The negative electrode additive of the alkaline manganese battery comprises 62-66% of zinc powder, 30-36% of 9.2mol / L potassium hydroxide solution, 1-3% of zinc oxide, 0.1-0.2% of polyethylene glycol, 0.1-0.2% of alkylphenol polyoxyethylene ether, 0.1-0.2% of dodecyltrimethylammonium bromide, 0.2-0.3% of indium hydroxide, 0.1-0.5% of cerium oxide, 0.1-0.3% of methyl hydroxyethyl cellulose, 0.1-0.4% of tin powder 0.1-0.2% of bismuth powder, and 0.3-0.8% of potassium dihydrogen phosphate. By virtue of the negative electrode additive of the alkaline manganese battery, the discharging capacity and the average discharging time of the alkaline manganese battery are obviously improved, so that the negative electrode additive is relatively high in market prospect.

Description

technical field [0001] The invention relates to the technical field of alkaline manganese batteries, in particular to an alkaline manganese battery negative electrode additive. Background technique [0002] Alkaline-manganese battery has become the leading product in the primary zinc-manganese battery series due to its outstanding advantages such as high power, large capacity discharge characteristics, long storage period, and high performance-price ratio. With the development of the economy, various portable electronic products are constantly emerging. Electronic products such as flashlights need to be driven by a large current when they are used. The batteries often used are up to 0.5-15A, which is equivalent to the power of 0.5-2W. Improving the high-current discharge endurance has become a hot spot in the current fierce competition in the alkaline-manganese battery market. [0003] Alkaline-manganese batteries generally have the discharge process reaction of alkaline-m...

AI Technical Summary

Problems solved by technology

[0007] The reaction (1) consumes 1 times more water than the reaction (2), which will make the water in the battery unable to meet the needs of completing the discharge reaction

What's more unfavorable is that the excessive consumption of water makes the KOH electrolyte reach the terminal concentration prematurely, depriving the electrolyte of KOH and more water

This terminates the discharge process prematurely and the battery discharge capacity is significantly reduced

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