Nickel coated carbon fluoride positive electrode material and preparation method thereof

A carbon-fluoride-coated, positive-electrode material technology, applied to the electrodes of primary batteries, battery electrodes, electrical components, etc., can solve problems such as insufficient effects, achieve enhanced hydrophilic and lipophilic properties, stable structure, and improved discharge voltage platform Effect

Active Publication Date: 2015-03-25
XIANGTAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned improvement method is helpful to improve the performance of lithium-carbon fluoride battery, but because the effect is not obvious enough, it has not been practically applied to the production technology of lithium-carbon fluoride

Method used

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  • Nickel coated carbon fluoride positive electrode material and preparation method thereof
  • Nickel coated carbon fluoride positive electrode material and preparation method thereof
  • Nickel coated carbon fluoride positive electrode material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Take 5 g of fluorinated graphite particles with a fluorine-carbon atomic ratio of 1.03 and a particle size of 5 to 10 μm for electroless nickel plating. The electroless nickel plating process is as follows:

[0045] (1) cleaning

[0046]Add the above-mentioned fluorocarbons to the alcohol-water solution with a volume ratio of alcohol to water of 1:1 and a total volume of 1 L. The temperature is 25° C., the stirring speed is 200 rpm, and the ultrasonic vibration is performed at a frequency of 30 kHz for 5 min.

[0047] The fluorocarbons were centrifuged and rinsed several times with deionized water.

[0048] (2) Sensitization

[0049] Add the cleaned carbon fluoride to the composition of tin protochloride (SnCl 2 2H 2 (0) 4g / L, 37% HCl 4mL / L, OP-101mL / L, the solvent is deionized water, and the volume is in the solution of 1L. The temperature is 25° C., the stirring speed is 200 revolutions per minute, and the time is 2 minutes.

[0050] The fluorocarbons were centr...

Embodiment 2

[0066] Take 20g of fluorinated carbon fiber with a fluorocarbon atomic ratio of 0.85 and a particle size of 10-15 μm, and perform electroless nickel plating. The electroless nickel plating process is as follows:

[0067] (1) cleaning

[0068] Add the above-mentioned fluorocarbons to the alcohol-water solution with a volume ratio of 1:2 and a total volume of 1 L. The temperature is 25° C., the stirring speed is 200 revolutions per minute, the ultrasonic vibration is performed at a frequency of 35 kHz, and the time is 8 min.

[0069] The fluorocarbons were centrifuged and rinsed several times with deionized water.

[0070] (2) Sensitization

[0071] Add the cleaned carbon fluoride to the composition of tin protochloride (SnCl 2 2H 2 (0) 7g / L, 37% HCl 5mL / L, each 0.5mL / L of sucrose ester and OP-10, the solvent is deionized water, and the volume is in a solution of 1L. The temperature is 25° C., the stirring speed is 400 revolutions per minute, and the time is 2 minutes.

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Abstract

The invention discloses a nickel coated carbon fluoride positive electrode material and a preparation method of the nickel coated carbon fluoride positive electrode material. The positive electrode material is prepared by coating the surface of carbon fluoride particles with a nickel-plating layer. The preparation method comprises the steps that the carbon fluoride particles are sequentially sensitized, activated and reduced under a function of dispersing agents and the nickel-plating layer is plated; the carbon fluoride particles coated with the nickel-plating layer are subjected to thermal treatment to obtain the nickel coated carbon fluoride positive electrode material. The preparation method is easy to operate, mild in process conditions and low in cost; the prepared nickel coated carbon fluoride positive electrode material is uniform in coating of nickel-plating layer, stable in structure, and can be used for preparing a lithium carbon fluoride battery with high conductivity, high specific capacity and high power density.

Description

technical field [0001] The invention relates to a nickel-coated carbon fluoride cathode material and a preparation method thereof, belonging to the field of battery cathode materials, in particular to the field of primary battery cathode materials. Background technique [0002] In the past ten years, my country's portable electronic equipment, aerostats, aerospace and bio-implanted power supplies have developed rapidly, so there is an urgent need for high-capacity, high-power, and lightweight primary batteries. [0003] Lithium fluoride carbon battery is currently the primary battery with the largest theoretical specific energy (2180Wh / kg), and has the advantages of environmental protection, no pollution, high safety, wide temperature range (-30~80℃), stable working voltage, etc. application prospects. At present, it has been widely used by advanced countries such as the United States and Japan in advanced fields such as military industry, aerospace, and precision medicine....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/58H01M4/62
CPCH01M4/08H01M4/366H01M4/582
Inventor 潘勇朱岭李磊田槟铖雷维新
Owner XIANGTAN UNIV
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