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Alkaline battery cathode and preparation method thereof

An alkaline battery and cathode material technology, which is applied to the electrodes of primary batteries, electrode manufacturing, battery electrodes, etc., can solve the problems of poor discharge performance, poor battery cathode ring formation, and low utilization rate of positive electrodes, so as to improve the positive electrode. The effect of utilization rate, low cost and convenient control

Inactive Publication Date: 2020-06-26
连州市凌力电池配件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing alkaline battery materials have poor discharge performance at high and medium currents, the utilization rate of the positive electrode is not high, and the formation of the battery cathode ring is not good, so further improvement is needed

Method used

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  • Alkaline battery cathode and preparation method thereof
  • Alkaline battery cathode and preparation method thereof
  • Alkaline battery cathode and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] In the present embodiment, a kind of cathode material of alkaline battery comprises the raw material of following weight portion:

[0031] Manganese dioxide 88 parts

[0032] Graphite 6.6 parts

[0033] Binder 0.4 parts

[0034] Additive 2.8 parts

[0035] Catholyte 2.8 parts.

[0036] Further, the manganese dioxide is electrolytic manganese dioxide.

[0037] Further, the particle size of the electrolytic manganese dioxide is 200-500 μm.

[0038] Further, the additive is barium sulfate.

[0039] Further, the binder is binder HA1681.

[0040] Further, each part of the catholyte includes the following raw materials in parts by weight: 54 parts of potassium hydroxide and 46 parts of deionized water.

[0041] Further, the preparation method of the electrolytic manganese dioxide comprises the following steps:

[0042] S1. Heating anatase crystalline titanium dioxide to a temperature of 800° C. under inert gas conditions, and heat-treating for 30 minutes to obtain mod...

Embodiment 2

[0050] In the present embodiment, a kind of cathode material of alkaline battery comprises the raw material of following weight portion:

[0051] Manganese dioxide 85 parts

[0052] graphite 6 parts

[0053] Binder 0.3 parts

[0054] Additive 2 parts

[0055] Catholyte 2.6 parts.

[0056] Further, the manganese dioxide is electrolytic manganese dioxide.

[0057] Further, the particle size of the electrolytic manganese dioxide is 200-500 μm.

[0058] Further, the additive is barium sulfate.

[0059] Further, the binder is binder HA1681.

[0060] Further, each part of the cathode electrolyte includes the following raw materials in parts by weight: 51-57 parts of potassium hydroxide, and 43-49 parts of deionized water.

[0061] Further, the preparation method of the electrolytic manganese dioxide comprises the following steps:

[0062] S1. Heating anatase crystalline titanium dioxide to a temperature of 700° C. under inert gas conditions, and heat-treating for 45 minutes ...

Embodiment 3

[0068] In the present embodiment, a kind of cathode material of alkaline battery comprises the raw material of following weight portion:

[0069] Manganese dioxide 91 parts

[0070] Graphite 7.2 parts

[0071] Binder 0.5 parts

[0072] Additive 3 parts

[0073] Catholyte 3.0 parts.

[0074] Further, the particle size of the electrolytic manganese dioxide is 200-500 μm.

[0075] Further, each part of the catholyte includes the following raw materials in parts by weight: 57 parts of potassium hydroxide and 49 parts of deionized water.

[0076] Further, the preparation method of the electrolytic manganese dioxide comprises the following steps:

[0077] S1. Heating anatase crystalline titanium dioxide to a temperature of 900° C. under inert gas conditions, and heat-treating for 20 minutes to obtain modified titanium dioxide powder;

[0078] S2, suspending the modified titanium dioxide powder prepared in step S1 in the bath liquid of the electrolytic tank as a suspending agen...

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Abstract

The invention relates to the technical field of batteries, in particular to an alkaline battery cathode and a preparation method thereof. The alkaline battery cathode is prepared from the following raw materials in parts by weight: 85-91 parts of manganese dioxide, 6-7.2 parts of graphite, 0.3-0.5 part of binder, 2-3 parts of additive and 2.6-3.0 parts of catholyte. The alkaline battery cathode material disclosed by the invention can improve the discharge performance of large current and medium current of an alkaline battery, improve the utilization rate of a positive electrode, promote the formation of a battery cathode ring and reduce the risks of breakage and cracking of the cathode ring; the consistency of the discharge performance of the battery is improved; the preparation method issimple and convenient to operate, convenient to control, high in production efficiency, low in cost, beneficial to industrial production and suitable for industrial production.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to an alkaline battery cathode and a preparation method thereof. Background technique [0002] Alkaline batteries are also known as alkaline dry batteries, alkaline zinc-manganese batteries, and alkaline-manganese batteries. They are the varieties with superior performance in the series of zinc-manganese batteries. Generally, the same type of alkaline battery is 3-7 times the capacity and discharge time of ordinary batteries, and the gap between the two is even greater in low-temperature performance. Alkaline batteries are more suitable for high-current continuous discharge and high working voltage. Occasions, especially suitable for cameras, flash lights, shavers, electric toys, CD players, high-power remote controls, wireless mice, keyboards, etc., have been increasingly widely used. However, the existing alkaline battery materials have poor discharge performance at high and me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/36H01M4/08H01M4/04H01M4/505H01M4/62H01M6/06H01M4/02
CPCH01M4/0433H01M4/08H01M4/364H01M4/505H01M4/621H01M4/625H01M6/06H01M2004/027
Inventor 汪刚耀莫照熙黄建琴
Owner 连州市凌力电池配件有限公司
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