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Alkaline zinc-manganese dioxide cell

A zinc-manganese battery, alkaline technology, applied in the field of alkaline zinc-manganese batteries, can solve the problems of shortening battery life, large hydrogen evolution of zinc paste, easy expansion, etc., to extend storage life, reduce hydrogen evolution, and improve discharge performance. Effect

Inactive Publication Date: 2018-09-28
GUANGDONG LIWANG NEW ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an alkaline zinc-manganese battery to solve the problem that the existing battery zinc paste has a large amount of hydrogen evolution, easy expansion, frequent liquid leakage, and ultimately shortens the service life of the battery

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Preparation of alkaline manganese battery containing multifunctional additives:

[0041] (1) A negative electrode zinc paste was prepared according to the above-mentioned method for preparing a negative electrode formulation containing the additive polyethylene glycol 2000 (PEG2000). At this time, the added amount of the new multifunctional additive is 0.05% wt of the anode zinc paste.

[0042] (2) Prepare the battery parts and accessories according to the normal production process, and the production process remains unchanged.

[0043] (3) The positive electrode of the battery, the electrolyte formula is consistent with the control group.

[0044] (4) Assemble and produce finished batteries on the LR06 alkaline manganese battery production line.

[0045] The following tests are carried out with LR06 batteries. It should be noted that the present invention is not limited to LR06 alkaline manganese batteries. The positive effects consistent with the present invention can be obta...

Embodiment 2

[0059] The negative electrode zinc paste containing the novel multifunctional additive of the present invention is prepared by the same method as the first embodiment. The production process is the same as that of the first embodiment, and the battery gas production test is the same as that of the first embodiment. The difference is that the added amount of the new multifunctional additive polyethylene glycol 2000 of the present invention is 0.5% wt. The battery is discharged for gas production experiment.

Embodiment 3

[0061] The negative electrode zinc paste containing the novel multifunctional additive of the present invention is prepared by the same method as in Example 1. The production process is the same as that of Example 1. The difference is that the added amount of the novel multifunctional additive of the present invention polyethylene glycol 2000 is 0.5% wt. And discharge in 3.9Ω, 24h / d discharge mode. Record data.

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Abstract

The invention relates to the field of alkaline zinc-manganese dioxide cells, and specifically relates to an alkaline zinc-manganese dioxide cell. The alkaline zinc-manganese dioxide cell comprises a positive electrode cap (1), a positive electrode ring (2), a steel shell (3), a current collector copper nail (4), a negative electrode zinc gel (5), diaphragm paper (6), a sealing ring (7), a supportring (8) and a negative electrode bottom (9); the positive electrode ring (2) is composed of electrolytic manganese dioxide, conductive agent graphite and electrolyte; and the negative electrode zincgel (5) comprises zinc powder, a binding agent, an expanding agent, an electrolyte potassium hydroxide solution and polyethylene glycol 2000. According to the alkaline zinc-manganese dioxide cell provided by the invention, the discharge performance of the alkaline zinc-manganese dioxide cell is not influenced or even slightly improved, and the problem of expansion of the zinc gel is effectively solved; and meanwhile, the hydrogen content of the cell is remarkably reduced, and the liquid leakage risk of the cell is greatly reduced, therefore, the discharge performance of the cell is effectivelyimproved, the storage life of the cell is prolonged, and the safety performance of the cell is remarkably improved.

Description

Technical field [0001] The invention relates to the field of alkaline zinc-manganese batteries, in particular to an alkaline zinc-manganese battery. Background technique [0002] In the existing primary battery energy system, alkaline zinc manganese batteries (alkaline manganese batteries) have been widely used due to a series of advantages such as high energy density, low price, and good portability. With the emergence of various high-power and high-current discharge appliances, the market demand continues to increase, which poses more stringent challenges to the performance of all aspects of the battery. The existing battery performance is far from meeting the needs of the market. Development is facing huge challenges. [0003] In order to meet the challenge, various new alkaline manganese battery formulations have been developed and applied, and the battery's high power and high current performance have been continuously developed and breakthroughs. While meeting the market dem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M6/06
CPCH01M6/06
Inventor 王康李子豪汪刚耀王红旗李维海李玲李小平李伟善
Owner GUANGDONG LIWANG NEW ENERGY
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