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High-capacity alkaline zinc-manganese cell

A zinc-manganese battery, high-capacity technology, applied in dry batteries, battery electrodes, circuits, etc., can solve the problems of small capacity and short battery life, and achieve the effect of improving utilization rate, low production cost, and reducing use cost

Active Publication Date: 2015-04-22
ZHENGJIANG MUSTANG BATTERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The capacity of the alkaline zinc-manganese battery is small, and it still cannot solve the problem of short battery life under the condition of medium and small current discharge.

Method used

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  • High-capacity alkaline zinc-manganese cell
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  • High-capacity alkaline zinc-manganese cell

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0053] (1) Manufacturing of positive electrode ring

[0054] Take 500g of electrolytic manganese dioxide (produced by Guangxi Echman Kangmilao Chemical Co., Ltd.), purity ≥90%, specific surface area 30-35M 2 / g, alkaline potential ≥270mV, add 40g expanded graphite (baotou crystal element), 2.5g low molecular polyethylene binder powder (Huangshan Benoy Chemical Co., Ltd.) quickly stir and disperse, add 25g 40wt% potassium hydroxide electrolyte, After stirring for another 10 minutes, it was rolled into tablets, crushed and granulated. After granulation, the size of the cathode material is 20-80 mesh particles, and the apparent specific gravity is 1.54g / ml. After ringing, the 4 rings of the LR6 battery cathode material are 10.5mm high, the outer diameter of the ring is 13.4mm, and each battery has 4 anode rings. The total weight is 10.6-10.7g.

[0055] (2) Preparation of modified zinc paste

[0056] First weigh 150mg Al(OH) 3 (Produced by Tianjin Bodi Chemical Co., Ltd.) Add 10g of 3...

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Abstract

The invention discloses a high-capacity alkaline zinc-manganese cell. The high-capacity alkaline zinc-manganese cell solves the problem that the existing alkaline zinc-manganese cell has a small capacity and has a short use period under the condition of intermediate / low-current discharging. The high-capacity alkaline zinc-manganese cell comprises a steel housing, an anode ring, zinc paste, a diaphragm paper, a sealing ring, a copper nail and a cathode cover. Alkyl polyoxyethylene ether phosphate and an aluminum compound are added into the zinc paste and modify the zinc paste so that the high-capacity alkaline zinc-manganese cell is obtained. Under the condition of intermediate / low-current discharging, the high-capacity alkaline zinc-manganese cell has a long discharging period, a small self-discharging capacity, and good cell storage performances and greatly improves a cell discharging capacity.

Description

Technical field [0001] The invention relates to the technical field of battery production, in particular to a large-capacity alkaline zinc-manganese battery. Background technique [0002] Alkaline zinc-manganese batteries have always been welcomed by consumers because of their reasonable structural design and easy mass production, as well as excellent electrochemical performance and high cost performance. Since the mercury-free alkaline zinc-manganese battery was put on the market, the safe, environmentally-friendly and high-performance alkaline zinc-manganese battery has been well received by the market. [0003] Alkaline zinc manganese batteries have 4-5 times higher capacity than ordinary carbon batteries, and the price is very low. Alkaline zinc-manganese batteries currently on the market can meet the needs of high-power small electronic products such as digital cameras, flashes, electric shavers, and electric toys. However, many consumers choose to use small and medium power...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M6/06H01M4/62
Inventor 余谷峰
Owner ZHENGJIANG MUSTANG BATTERY CO LTD