Preparation method for carbon-coated nano ferroferric oxide for battery

A technology of iron tetroxide and carbon coated nanometers, applied in batteries, battery electrodes, nickel storage batteries, etc., can solve the problems of low charging and discharging efficiency, can not be sealed, low capacity of iron tetroxide, etc., to achieve stable cycle life , excellent electrical properties, excellent performance

Inactive Publication Date: 2015-09-30
LONGZHOU WANHE TRADING CO LTD
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Problems solved by technology

[0006] In order to solve the disadvantages of low gram capacity, low charge and discharge efficiency, high rate discharge, large self-discharge, unsealable, complicated production process and other shortcomings of the ordinary ferroferric oxide used in the existing battery iron electrodes, a high gram capacity, chargeable battery is required. High discharge efficiency, high rate discharge, low self-discharge, sealable, simple process, low cost, high strength and long service life iron triiron tetroxide for battery iron electrode and manufacturing method thereof

Method used

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  • Preparation method for carbon-coated nano ferroferric oxide for battery
  • Preparation method for carbon-coated nano ferroferric oxide for battery

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0024] preferred embodiment

[0025] As shown in figure (2), it is a preferred embodiment of the present invention, and this preferred embodiment provides a kind of manufacturing method of specific negative electrode of battery with carbon-coated nano ferric oxide, and this specific manufacturing method comprises the following steps:

[0026] (1) Accurately weigh 200 grams of sodium hydroxide and dissolve it in 500 milliliters of pure water. After the dissolution i...

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Abstract

The invention provides a preparation method for carbon-coated nano ferroferric oxide for a battery. The method comprises the following steps: performing dry mixing on ferroferric oxide and conductive carbon black with high purity; adding the ferroferric oxide and conductive carbon black which are subjected to dry mixing into a prepared sodium hydroxide solution; adding a prepared sodium borohydride solution into a reaction solution; aging; cleaning with pure water; dispersing by using ultrasonic waves; filtering; stoving; sieving; and sealing and packaging. An iron nickel battery produced from the carbon-coated nano ferroferric oxide for a battery electrode is high in gram volume, high in charging-discharging efficiency, low in self discharging rate, simple in process, high in strength and long in service life, and can be sealed.

Description

technical field [0001] The invention belongs to the technical field of battery manufacturing materials, and in particular relates to a manufacturing method of carbon-coated nano ferric oxide for battery negative electrodes. Background technique [0002] The iron-nickel battery is one of many rechargeable batteries. Its cathode is nickel oxide, the anode is iron, and the electrolyte (electrolyte) is potassium hydroxide. The voltage of the iron-nickel battery is usually 1.2V. This battery is very durable and can withstand a certain degree of use accidents (such as overcharge, overdischarge, short circuit, overheating), and can still maintain a long life after suffering the above damage. [0003] The research and application of iron negative electrode and nickel positive electrode have a history of more than 100 years. In 1887, Desmazures and others discussed the possibility of using nickel oxide as a positive electrode active material in alkaline batteries. In 1895, Junger of ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/52H01M4/62
CPCH01M4/52H01M4/625H01M4/248H01M4/366H01M4/521H01M4/62Y02E60/10H01M10/30H01M2004/028H01M2220/20
Inventor 阎登明余海生陈伟明
Owner LONGZHOU WANHE TRADING CO LTD
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