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Method for prolonging discharge duration of high-voltage section of disposable dry battery

A technology of duration and dry batteries, which is applied to the electrodes of primary batteries, dry batteries, battery electrodes, etc. It can solve the problems of increasing the limit of battery discharge termination voltage and the limit of the use of alkaline zinc-manganese dioxide batteries, etc., to achieve excellent discharge performance Effect

Inactive Publication Date: 2019-05-21
李彤
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  • Summary
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the upper limit of the discharge performance of alkaline zinc-manganese dioxide batteries on the market is generally around 1000mA due to heavy loads, while the discharge current of digital cameras and some high-powered toys reaches 1500mA-3000mA, and the limit of battery discharge termination voltage is increased ( up to 1.1-1.3V), these requirements limit the use of alkaline zinc-manganese dioxide batteries in this field

Method used

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Embodiment Construction

[0012] The present invention discloses a primary secondary battery, which selects the active material nickel oxyhydroxide as the positive electrode. The positive electrode can be all nickel oxyhydroxide, or a form doped with electrolytic manganese dioxide and nickel oxyhydroxide. The content of Co in the nickel oxyhydroxide can be between 0-4%, preferably between 2-3%.

[0013] Since nickel oxyhydroxide is a positive active material and is in a state of being discharged, its equilibrium electrode potential is +0.49V, which is slightly higher than EMD. However, the discharge platform of nickel oxyhydroxide is much higher than that of EMD and is more stable. The electrode potential changes little during the discharge process, and the discharge curve is almost horizontal, instead of a diagonal line like EMD. Therefore, hydrogen is used As the active material of the battery, nickel oxide can improve the battery discharge platform and extend the discharge duration of the battery in t...

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Abstract

The invention discloses a method for prolonging discharge duration of a high-voltage section of a disposable dry battery. The method selects an active material that is nickel oxyhydroxide as a positive electrode, the positive electrode may be entirely made of nickel oxyhydroxide or may be doped with electrolytic manganese dioxide and nickel oxyhydroxide, and the Co content in the nickel oxyhydroxide may vary from 0 to 8%, preferably from 2 to 3%. Thus, the invention proposes a dry battery dedicated to a heavy-duty discharge digital camera by applying a novel active material that is nickel oxyhydroxide to the positive electrode of a primary battery and combining a high conductivity electrolyte and a separator paper and a negative electrode having excellent penetration resistance.

Description

Technical field [0001] The invention relates to a method for extending the discharge duration of a high-voltage section of a disposable dry battery. Background technique [0002] At present, the upper limit of the discharge performance of alkaline zinc-manganese dioxide batteries on the market due to heavy load is generally about 1000mA, while the discharge current of digital cameras and some high-horsepower toys reaches 1500mA-3000mA, and the battery discharge termination voltage limit is increased ( Up to 1.1-1.3V), these requirements restrict the use of alkaline zinc-manganese dioxide batteries in this field. Summary of the invention [0003] The purpose of the present invention is to provide a disposable battery with nickel oxyhydroxide as the pole, so as to be suitable for use in the field of digital cameras. [0004] To achieve the above objective, the solution of the present invention is: [0005] For the primary battery, the active material nickel oxyhydroxide is used as the...

Claims

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Application Information

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IPC IPC(8): H01M4/06H01M4/52H01M6/06
Inventor 李彤
Owner 李彤
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