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A mercury-free high-power zinc-manganese battery and battery powder, zinc cylinder and mercury-free paste layer paper

A zinc-manganese battery, high-power technology, applied in battery electrodes, dry batteries, aqueous electrolyte batteries, etc., can solve the problems of reducing gas evolution, oil leakage, and battery self-discharge, etc. Improve the effect of hydrogen absorption overpotential

Active Publication Date: 2020-11-27
杭州长命电池有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above-mentioned problems in the prior art, the present invention provides a mercury-free high-power zinc-manganese battery and its battery powder, zinc cylinder and mercury-free slurry layer paper. The mercury-free high-power zinc-manganese battery can significantly Reduce the self-discharge of the battery and reduce the amount of gas evolution, so that the problems of mercury-free battery inflation, oil leakage, and electrical performance degradation can be solved from the source, and the storage performance and safety performance of the mercury-free battery can be effectively improved.

Method used

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  • A mercury-free high-power zinc-manganese battery and battery powder, zinc cylinder and mercury-free paste layer paper

Examples

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Effect test

Embodiment 1

[0022] This embodiment provides a mercury-free high-power zinc-manganese battery cell powder. The raw material components include: 220 kg of electrolytic manganese dioxide, 40 kg of acetylene black, 2.5 kg of zinc oxide, and 200 kg of electrolyte. The pH value of the battery powder was adjusted to 4.8, and the water content was 29.5%. In the electrolytic manganese dioxide, manganese dioxide ≥ 91.5%, iron ≤ 0.002%, copper ≤ 0.0005%, nickel ≤ 0.0001%, water ≤ 2%; the electrolyte is zinc chloride and ammonium chloride in molar ratio 0.197:0.075 mixed aqueous solution.

[0023] Further, a zinc cylinder of a mercury-free high-power zinc-manganese battery is provided, the material composition of the zinc cylinder includes 0.002% of bismuth, 0.001% of indium and 0.003% of aluminum, and the rest is zinc. The zinc cylinder is prepared by the following method: after mixing zinc, bismuth, indium and aluminum, heating to 430°C to obtain a melt, fully stirring, pouring to obtain a zinc pl...

Embodiment 2

[0039] This embodiment provides a mercury-free high-power zinc-manganese battery cell powder. The raw material components include: 210 kg of electrolytic manganese dioxide, 35 kg of acetylene black, 2 kg of zinc oxide, and 180 kg of electrolyte. Adjust the pH value of the battery powder to 5.3, and the moisture content to 30.5%. In the electrolytic manganese dioxide, manganese dioxide ≥ 91.5%, iron ≤ 0.002%, copper ≤ 0.0005%, nickel ≤ 0.0001%, water ≤ 2%; the electrolyte is zinc chloride and ammonium chloride by mole A mixed aqueous solution with a ratio of 0.1:0.06.

[0040] Further, a zinc cylinder for a mercury-free high-power zinc-manganese battery is provided, the material composition of the zinc cylinder includes 0.001% bismuth, 0.0005% indium and 0.002% aluminum, and the rest is zinc. The zinc cylinder is prepared by the following method: mixing zinc, bismuth, indium and aluminum, heating to 440°C to obtain a melt, fully stirring, pouring to obtain a zinc plate, punchi...

Embodiment 3

[0056] This embodiment provides a mercury-free high-power zinc-manganese battery cell powder. The raw material components include: 230 kg of electrolytic manganese dioxide, 45 kg of acetylene black, 3 kg of zinc oxide, and 220 kg of electrolyte. The pH value of the battery powder was adjusted to 5.0, and the water content was 29.8%. In the electrolytic manganese dioxide, manganese dioxide ≥ 91.5%, iron ≤ 0.002%, copper ≤ 0.0005%, nickel ≤ 0.0001%, water ≤ 2%; the electrolyte is zinc chloride and ammonium chloride by mole A mixed aqueous solution with a ratio of 0.2:0.08.

[0057] Further, a zinc cylinder for a mercury-free high-power zinc-manganese battery is provided, the material composition of the zinc cylinder includes 0.003% bismuth, 0.0015% indium and 0.004% aluminum, and the rest is zinc. The zinc cylinder is prepared by the following method: after mixing zinc, bismuth, indium and aluminum, heating to 440°C to obtain a melt, fully stirring, pouring to obtain a zinc pla...

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Abstract

The invention relates to a mercury-free high-power zinc-manganese battery and battery cell powder thereof, a zinc barrel and mercury-free coated paper. Firstly, a battery cell powder formula is optimized, and electrolytic manganese dioxide, acetylene black, zinc oxide and electrolyte are used as raw materials and are mixed in a proper weight ratio, so that the gas evolution in the battery is remarkably reduced; secondly, metal including bismuth, indium, aluminum and the like is added into a negative electrode zinc barrel material, so that the hydrogen absorption overpotential of zinc is improved and self-discharge of the battery is reduced, and furthermore, the gas separation amount is reduced; and thirdly, a formula of mercury-free battery paste coated on the mercury-free coated paper isoptimized, and the mercury-free battery can reach the corrosion inhibition effect of a mercury-containing battery through a specific ratio and technology. By adopting mechanisms in three aspects, theproblem that the mercury-free battery is easy to expand and the corrosion inhibition effect is not ideal can be solved from the source through the mercury-free high-power zinc-manganese battery, and the storage performance and safety performance of the mercury-free high-power zinc-manganese battery are effectively improved.

Description

technical field [0001] The invention belongs to the technical field of batteries, and in particular relates to a mercury-free high-power zinc-manganese battery and battery powder, a zinc cylinder and mercury-free pulp layer paper. Background technique [0002] Mercury-free batteries are the future battery development trend, but the corrosion inhibition effect of mercury-free high-power zinc-manganese battery substitute mercury corrosion inhibitors is not very satisfactory. At the same time, due to serious self-discharge during battery storage, it is easy to cause battery inflation and leakage , electrical performance degradation and other quality problems, affecting battery storage performance and use safety. The existing mercury-free high-power zinc-manganese batteries bring safety hazards to reduce battery inflation. Although some improvements have been made in structure, the current mercury-free batteries still have safety hazards such as oil leakage and battery failure u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M6/08H01M4/62
CPCH01M4/628H01M6/08H01M2300/0005
Inventor 徐增富李树波倪根忠
Owner 杭州长命电池有限公司
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