A kind of preparation method of nano carbon electrode composite material

A composite material and nano-carbon technology, which is applied in battery electrodes, nanotechnology, circuits, etc., can solve the problems of reducing the capacity of composite materials, increasing costs, and agglomerating carbon nanotubes to increase the amount of raw materials, so as to improve the rate performance and reduce the use of The effect of increasing the effective reaction area

Active Publication Date: 2016-07-06
GUIZHOU TELIDA NANO CARBON SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the current method of using carbon nanotubes cannot give full play to its advantages. At the same time, due to the serious agglomeration of carbon nanotubes, the amount of raw materials has to be increased, which increases the cost and reduces the capacity of the composite material.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 1) Weigh raw materials according to the following components and mass percentage content: catalyst 5g, lithium salt 5g, iron salt 50g and phosphate 30g; Described catalyst is the superfine powder of metal Ni, Y, Zr and MgO, and size is 500nm, its percentage by weight is respectively 85%, 5%, 5% and 10% of the total weight of the catalyst; the lithium salt is a combination of lithium carbonate, lithium hydroxide, lithium nitrate and lithium phosphate, and its percentage by weight is respectively lithium 45%, 25%, 25% and 5% of the total weight of the salt; the iron salt is ferrous oxalate and ferric phosphate, and its weight percentage is respectively 70% and 30% of the total weight of the iron salt; the phosphate It is ammonium dihydrogen phosphate and ammonium phosphate, and its weight percentage is 50% and 50% of the total weight of phosphate respectively; after adding the above-mentioned raw materials into the dispersant, ball milling in a ball mill at a speed of 500r...

Embodiment 2

[0035] 1) Weigh raw materials according to the following components and mass percentage content: catalyst 5g, lithium salt 10g, iron salt 55g and phosphate 40g; Described catalyst is the superfine powder of metal Ni, Y, Zr and MgO, and size is 500nm, its percentage by weight is respectively 85%, 5%, 5% and 10% of the total weight of the catalyst; the lithium salt is a combination of lithium carbonate, lithium hydroxide, lithium nitrate and lithium phosphate, and its percentage by weight is respectively lithium 45%, 25%, 25% and 5% of the total weight of the salt; the iron salt is ferrous oxalate and ferric phosphate, and its weight percentage is respectively 70% and 30% of the total weight of the iron salt; the phosphate It is ammonium dihydrogen phosphate and ammonium phosphate, and its weight percentage is 50% and 50% of the total weight of phosphate respectively; after adding the above-mentioned raw materials into the dispersant, ball milling in a ball mill at a speed of 800...

Embodiment 3

[0041] 1) Weigh raw materials according to the following components and mass percentage content: catalyst 10g, lithium salt 5g, iron salt 50g and phosphate 35g; Described catalyst is the superfine powder of metal Ni, Y, Zr and MgO, and size is 500nm, its percentage by weight is respectively 85%, 5%, 5% and 10% of the total weight of the catalyst; the lithium salt is a combination of lithium carbonate, lithium hydroxide, lithium nitrate and lithium phosphate, and its percentage by weight is respectively lithium 45%, 25%, 25% and 5% of the total weight of the salt; the iron salt is ferrous oxalate and ferric phosphate, and its weight percentage is respectively 70% and 30% of the total weight of the iron salt; the phosphate It is ammonium dihydrogen phosphate and ammonium phosphate, and its weight percentage is 50% and 50% of the total weight of phosphate respectively; after adding the above-mentioned raw materials into the dispersant, they are ball milled in a ball mill at a spee...

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Abstract

The invention discloses a preparation method of a nano carbon electrode composite material. The method comprises the following steps: 1) weighing raw materials according to the following components by the mass percentage: 5%-10% of a catalyst, 5%-10% of a lithium salt, 50%-55% of an iron salt, and 30-40% of phosphate; and after adding a dispersant into the raw materials, carrying out ball milling in a ball mill, and thus obtaining a precursor; 2) putting the obtained precursor in a 60-70 DEG C vacuum oven, drying for 10-30 hours, then putting into a tube type vacuum furnace with atmosphere protection, then introducing nitrogen gas or argon gas, then introducing methane gas, and keeping the pressure at 1.5-2.0 MPa; and 3) preparing a dispersion powder from the product obtained in the step 2), carrying out isopyknic immersion of the dispersion powder with a phenolic resin-P123 macromolecule copolymer-ethyl orthosilicate sol, carrying out full condensation, naturally cooling to the room temperature, and thus obtaining a nano carbon electrode composite material. The method can prevent the electrode material from generating an agglomeration phenomenon, not only reduces the cost, but also improves the performance.

Description

technical field [0001] The invention belongs to the field of composite electrode materials for active batteries, and relates to a preparation method of nano-carbon electrode materials. Background technique [0002] Hydrogen is the cleanest energy and an important industrial raw material, but the storage and transportation problems of hydrogen limit the wide application of hydrogen energy. Whether the vehicle-mounted hydrogen-oxygen fuel cell can be widely used in practice is also closely related to whether this problem can be solved. Research and development of hydrogen storage materials with excellent performance is one of the key ways to solve the storage and transportation of hydrogen energy. [0003] Lithium cobaltate, as the positive electrode material of lithium ion battery, shows excellent performance in the field of portable electronic products such as mobile phones, camcorders, notebook computers, digital cameras, media players, etc. serious safety hazard. Now th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/583B82Y40/00
CPCB82Y40/00H01M4/362H01M4/583Y02E60/10
Inventor 高虹曹阳李力
Owner GUIZHOU TELIDA NANO CARBON SCI & TECH
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