Alkaline dry battery and preparation method thereof

A dry battery and alkaline technology, applied in the field of alkaline dry batteries and their preparation, batteries and their preparation, can solve the problems of adding heavy electrolyte, destroying electronic parts, corroding metals, etc., to enhance discharge and battery life, and reduce consumption , the effect of improving performance

Active Publication Date: 2014-12-10
NINGBO BEITERUI ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above two patents do not add additional elements, the weight of the electrolyte in the positive electrode materials of these two patents is relatively large, and the alkaline battery that has been placed for a long time will leak the electrolyte, and the corrosive alkaline potassium hydroxide electrolysis The liquid will irritate the eyes, respiratory tract and skin; and the electrolyte will also corrode metals and damage electronic parts, so the electrolyte leaked from the battery will also damage the products using the battery, especially electronic products

Method used

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  • Alkaline dry battery and preparation method thereof
  • Alkaline dry battery and preparation method thereof
  • Alkaline dry battery and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037]Weigh the raw materials according to the composition and weight percentage ratio of the positive electrode ring of Example 1 alkaline dry battery in Table 1, the composition and weight percentage of the electrolytic manganese dioxide powder in the raw material are: manganese dioxide: ≥ 92%, water : ≤3%, sulfate radical: <1.5%, hydrochloric acid insoluble matter: <0.06%; the particle size distribution range of electrolytic manganese dioxide powder is 10 μm to 150 μm, and the ratio of electrolytic manganese dioxide powder with particle size below 75 μm is greater than 90% %, the ratio of electrolytic manganese dioxide powder with a particle size above 125 μm is less than 2%; the positive electrode electrolyte is potassium hydroxide aqueous solution, and the weight percentage of potassium hydroxide is 39%. Then fully mix the electrolytic manganese dioxide powder and graphite powder, add the positive electrode electrolyte and stir evenly after mixing, then perform tableting, ...

Embodiment 2

[0041] Weigh the raw materials according to the composition and weight percentage ratio of the positive electrode mixture pellets of Example 2 alkaline dry battery in Table 1, the composition and weight percentage of the electrolytic manganese dioxide powder in the raw materials are: manganese dioxide: ≥ 95% , water: ≤1%, sulfate radical: <1.0%, hydrochloric acid insoluble matter: <0.06%; the particle size distribution range of electrolytic manganese dioxide powder is 10 μm to 150 μm, and the ratio of electrolytic manganese dioxide powder with particle size below 75 μm More than 95%, the ratio of electrolytic manganese dioxide powder with a particle size of 125 μm or more is less than 1%; the positive electrode electrolyte is potassium hydroxide aqueous solution, and the weight percentage of potassium hydroxide is 39%. Then fully mix the electrolytic manganese dioxide powder and graphite powder, add the positive electrode electrolyte and stir evenly after mixing, then perform t...

Embodiment 3

[0045] Weigh the raw materials according to the composition and weight ratio of the positive electrode mixture pellets of Example 3 alkaline dry battery in Table 1, and the composition and weight percentage of the electrolytic manganese dioxide powder in the raw materials are: manganese dioxide: ≥ 91% , water: ≤2%, sulfate group: <1.3%, hydrochloric acid insoluble matter: <0.06%; the particle size distribution range of electrolytic manganese dioxide powder is 10 μm to 150 μm, and the ratio of electrolytic manganese dioxide powder with a particle size below 75 μm More than 92%, the ratio of electrolytic manganese dioxide powder with a particle size of 125 μm or more is less than 1%; the positive electrode electrolyte is potassium hydroxide aqueous solution, and the weight percentage of potassium hydroxide is 39%. Then fully mix the electrolytic manganese dioxide powder and graphite powder, add the positive electrode electrolyte and stir evenly after mixing, then perform tabletin...

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Abstract

The invention relates to an alkaline dry battery and a preparation method thereof, belonging to the technical field of batteries. The alkaline dry battery comprises a positive electrode ring and negative electrode zinc cream which are separated by a diaphragm, wherein the positive electrode ring comprises the following components in parts by weight: 100 parts of electrolytic manganese dioxide powder, 7.5-8.5 parts of graphite powder, 0.4-0.6 part of zinc stearate and 0.4-0.5 part of a positive electrode electrolyte solution; the zinc cream comprises the following components in parts by weight: 100 parts of zinc alloy powder, 50-65 parts of a negative electrode electrolyte solution and 2-4 parts of pure water. According to the alkaline dry battery, the proportion of electrolytic manganese dioxide to graphite in the positive electrode ring is reasonably configured, and the dosage of the positive electrode electrolyte solution in the positive electrode ring is substantially reduced, so that the alkaline dry battery is good enough in discharge performance, and meanwhile, the electrolyte solution cannot leak from the alkaline dry battery in a long-term placement process, thereby avoiding adverse influences to human and products.

Description

technical field [0001] The invention relates to a battery and a preparation method thereof, in particular to an alkaline dry battery and a preparation method thereof, belonging to the technical field of batteries. Background technique [0002] Alkaline dry battery is a primary battery with manganese dioxide as the positive electrode, zinc as the negative electrode, and alkaline aqueous solution as the electrolyte. It has the advantages of large capacity, small internal resistance, long service life, good low-temperature performance and leak-proof performance, and high cost performance. , so alkaline dry batteries are widely used in civil and industrial applications, especially for cameras, tape recorders, video cameras, walkie-talkies, game consoles, toys, telemeters, calculators, hearing aids, flashlights and electric clocks and other equipment. [0003] In order to improve the performance of the alkaline dry battery, various active materials are usually added to the positi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/48H01M4/50H01M4/08
CPCH01M4/08H01M4/50H01M4/583H01M6/08
Inventor 李海波邹快乐
Owner NINGBO BEITERUI ENERGY TECH
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