High-capacity alkaline zinc-manganese cell

A zinc-manganese battery and large-capacity technology, which is applied in dry batteries, battery electrodes, circuits, etc., can solve the problems of short battery life and small capacity, and achieve improved utilization, battery discharge capacity, and medium and small current discharge performance. Effect

Active Publication Date: 2013-08-07
ZHENGJIANG MUSTANG BATTERY CO LTD
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  • 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

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0055] (1) Manufacture of positive electrode ring

[0056] Take 500g of electrolytic manganese dioxide (manufactured by Guangxi Erman Comilao Chemical Co., Ltd.) with a purity of ≥90% and a specific surface area of ​​30-35M 2 / g, alkaline potential ≥ 270mV, add 40g of expanded graphite (Baotou Jingyuan), 2.5g of low molecular weight polyethylene adhesive powder (Huangshan Benuo Chemical Co., Ltd.) after rapid stirring and dispersion, add 25g of 40wt% potassium hydroxide electrolyte, After stirring for another 10 minutes, the mixture was rolled into flakes, pulverized and granulated. After granulation, the size of the positive electrode material is 20 mesh-80 mesh particles, and the apparent specific gravity is 1.54g / ml. After ringing, the height of the 4 positive electrode materials of the LR6 battery is 10.5mm, and the outer diameter of the ring is 13.4mm. Each battery has 4 positive electrode rings The total weight is 10.6-10.7g.

[0057] (2) Preparation of modified zinc p...

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PUM

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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 been welcomed by consumers because of their reasonable structural design and convenient mass production, as well as their excellent electrochemical performance and high cost performance. Since the mercury-free alkaline zinc-manganese battery was put into the market, the safe, environmentally friendly and high-performance alkaline zinc-manganese battery has been well received by the market. [0003] Alkaline zinc-manganese battery capacity is 4-5 times higher than ordinary carbon batteries, and the price is also very low. Alkaline zinc-manganese batteries currently on the market can meet the needs of high-power small electronic products such as digital cameras, flash lights, electric shavers, and electric toys. However, many consumers choose to use sm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M6/06H01M4/62
CPCY02E60/12
Inventor 余谷峰
Owner ZHENGJIANG MUSTANG BATTERY CO LTD
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