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Preparation of a fluorine-doped nickel oxide nanoporous lithium-air battery cathode material loaded with active metals

A lithium-air battery and positive electrode material technology, applied in the direction of battery electrodes, circuits, electrical components, etc., can solve difficult problems and achieve the effects of improving two-way efficiency, excellent electrochemical redox performance, and excellent electrical conductivity

Inactive Publication Date: 2016-11-30
HANGZHOU INST OF ADVANCED MATERIAL BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is a method for a fluorine-doped nickel oxide nanoporous lithium-air battery positive electrode material loaded with active metals. Method of doped nickel oxide nanoporous lithium-air battery cathode material loaded with active metal

Method used

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Embodiment 1

[0029] A method for preparing a fluorine-doped nickel oxide nanoporous lithium-air battery cathode material loaded with active metals, comprising the following steps:

[0030] 1. Anodizing

[0031] a) Treatment of nickel substrate: Use high-purity nickel foil as the substrate, polish it with 600 mesh, 1000 mesh, and 2000 mesh SiC sandpaper, and then use 0.05um Al 2 o 3 Polish to mirror brightness, put the polished nickel foil into ice acetone and deionized water successively, ultrasonically clean it for 20 minutes respectively, and dry it for later use.

[0032] b) Electrolyte preparation: mix 100ml of phosphoric acid with a mass fraction of 85% and 50ml of deionized water, add 1.8g of NH 4 F, and mix uniformly under magnetic stirring, and prepare NH with a mass fraction of 0.8% 4 F solution.

[0033] c) Preparation of fluorine-doped nickel oxide nanomaterials by anodic oxidation: in a water bath at a constant temperature of 40 degrees Celsius, place a nickel sheet as an a...

Embodiment 2

[0043] A method for preparing a fluorine-doped nickel oxide nanoporous lithium-air battery cathode material loaded with active metals, comprising the following steps:

[0044] 1 anodized

[0045] a) Treatment of nickel substrate: Use high-purity nickel foil as the substrate, polish it with 600 mesh, 1000 mesh, and 2000 mesh SiC sandpaper, and then use 0.05um Al2 o 3 Polish to mirror brightness, put the polished nickel foil into ice methanol and deionized water successively, ultrasonically clean it for 20 minutes respectively, and dry it for later use.

[0046] b) Electrolyte preparation: mix 100ml of phosphoric acid with a mass fraction of 85% and 50ml of deionized water, add 1.8g of NH 4 F, and mix uniformly under magnetic stirring, and prepare NH with a mass fraction of 0.8% 4 F solution.

[0047] c) Preparation of fluorine-doped nickel oxide nanomaterials by anodic oxidation: in a water bath at a constant temperature of 40 degrees Celsius, place a nickel sheet as an anod...

Embodiment 3

[0057] A method for preparing a fluorine-doped nickel oxide nanoporous lithium-air battery cathode material loaded with active metals, comprising the following steps:

[0058] 1 anodized

[0059] a) Treatment of nickel substrate: Use high-purity nickel foil as the substrate, polish it with 600 mesh, 1000 mesh, and 2000 mesh SiC sandpaper, and then use 0.05um Al 2 o 3 Polish to mirror brightness, put the polished nickel foil into ice glycerol and deionized water successively, ultrasonically clean it for 20 minutes respectively, and dry it for later use.

[0060] b) Electrolyte preparation: mix 100ml of phosphoric acid with a mass fraction of 85% and 50ml of deionized water, add 1.8g of NH 4 F, and mix uniformly under magnetic stirring, and prepare NH with a mass fraction of 0.8% 4 F solution.

[0061] c) Preparation of fluorine-doped nickel oxide nanomaterials by anodic oxidation: in a water bath at a constant temperature of 40 degrees Celsius, place a nickel sheet as an an...

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Abstract

The invention discloses a preparation method of a porous fluorine-doped active-metal-loaded nickel oxide nano lithium air battery positive material. The method comprises the steps: firstly enabling a fluorine-doped porous nickel oxide nano material to in situ grow on a nickel-base substrate by virtue of an electrochemical anode oxidization method, loading a lithium air battery active material on the surface of the porous material by utilizing an electric deposition method, and calcining to obtain the porous fluorine-doped active-metal-loaded nickel oxide nano lithium air battery positive material. According to the method, the porous active-substance-loaded metal oxide nano material is prepared by combining the electrochemical anode oxidization method and the electric deposition method, so that not only can a brand new way be provided for synthesizing the metal oxide nano material, but also an innovative synthesis route is provided for the composite material field; meanwhile, the prepared porous oxide nano material is good in oxidized reduction catalytic activity and is wide in application prospect in the field of the lithium air batteries and clean environment-friendly energy.

Description

technical field [0001] The invention discloses a preparation of a fluorine-doped nickel oxide nanoporous lithium-air battery positive electrode material loaded with active metals, which belongs to the field of electrochemical positive electrode catalytic materials and metal oxide nanomaterials, and specifically relates to an electrodeposition method using anodic oxidation and electrodeposition. Preparation of fluorine-doped active metal-loaded nickel oxide nanoporous cathode materials for lithium-air batteries by chemical method. Background technique [0002] With the rapid development of today's society, the use of existing energy sources is becoming wider and wider. However, the harmful gases produced by fossil fuels have great side effects on the environment. At the same time, the lack of fossil energy makes it unable to meet people's current needs growing energy demand. Therefore, finding a new type of clean energy to replace fossil energy is one of the most effective w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/88H01M4/92
CPCH01M4/8875H01M4/8882H01M4/8885H01M4/90H01M4/9025H01M4/905Y02E60/50
Inventor 银凤翔范天熙李国儒
Owner HANGZHOU INST OF ADVANCED MATERIAL BEIJING UNIV OF CHEM TECH
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