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Graphitized carbon material for lithium battery and preparation method of graphitized carbon material

A technology of graphitized carbon and lithium batteries, which is applied in the direction of lithium batteries, battery electrodes, non-aqueous electrolyte batteries, etc. It can solve the problem that the electrical conductivity and electric energy storage ability cannot adapt to electronic technology, the general charge and discharge speed, and unfavorable promotion and popularization, etc. problems, to achieve strong practical application value, good electrical and thermal conductivity, and wide application range

Inactive Publication Date: 2018-11-23
李田娣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional lithium battery lithium metal or lithium alloy is a graphitized carbon material, and its conductivity and electric energy storage capacity are increasingly unable to adapt to the development of current electronic technology. Moreover, the graphitized carbon material of the traditional lithium battery has a general charge and discharge speed and poor thermal conductivity. Poor performance reduces service life and is not conducive to widespread promotion and popularization

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A graphitized carbon material for lithium batteries. The formula of the graphitized carbon material for lithium batteries is as follows: 5 parts of metal ion, 4 parts of exchange resin, 3 parts of activator, 2 parts of modifier, 4 parts of carbonization regulator, 1 part of pickling liquid.

[0028] Specifically, the metal ion includes one or more of zinc salt, cobalt salt or nickel salt, and the zinc salt is zinc nitrate hexahydrate, the cobalt salt is potassium hexanitrocobaltate, and the nickel salt is nickel acetate. .

[0029] Specifically, the exchange resin includes one or a mixture of two or more of cation exchange resin, anion exchange resin and amphoteric ion exchange resin, or one or more of intermediates, and the cation exchange resin is macroporous weakly acidic acrylic acid It is a cation exchange resin, the anion exchange resin is a macroporous basic acrylic anion exchange resin, and the amphoteric ion exchange resin is an acrylic-styrene amphoteric ion excha...

Embodiment 2

[0039] A graphitized carbon material for lithium batteries. The formula of the graphitized carbon material for lithium batteries is as follows: 7 parts of metal ions, 5 parts of exchange resins, 5 parts of activators, 4 parts of modifiers, and 6 parts of carbonization regulators, 3 parts of pickling liquid.

[0040] Specifically, the metal ion includes one or more of zinc salt, cobalt salt or nickel salt, and the zinc salt is zinc nitrate hexahydrate, the cobalt salt is potassium hexanitrocobaltate, and the nickel salt is nickel acetate. .

[0041] Specifically, the exchange resin includes one or a mixture of two or more of cation exchange resin, anion exchange resin and amphoteric ion exchange resin, or one or more of intermediates, and the cation exchange resin is macroporous weakly acidic acrylic acid It is a cation exchange resin, the anion exchange resin is a macroporous basic acrylic anion exchange resin, and the amphoteric ion exchange resin is an acrylic-styrene amphoteric...

Embodiment 3

[0051] A graphitized carbon material for lithium batteries. The formula of the graphitized carbon material for lithium batteries is as follows: 9 parts of metal ions, 6 parts of exchange resins, 7 parts of activators, 6 parts of modifiers, and 8 parts of carbonization regulators, 5 parts of pickling liquid.

[0052] Specifically, the metal ion includes one or more of zinc salt, cobalt salt or nickel salt, and the zinc salt is zinc nitrate hexahydrate, the cobalt salt is potassium hexanitrocobaltate, and the nickel salt is nickel acetate. .

[0053] Specifically, the exchange resin includes one or a mixture of two or more of cation exchange resin, anion exchange resin and amphoteric ion exchange resin, or one or more of intermediates, and the cation exchange resin is macroporous weakly acidic acrylic acid It is a cation exchange resin, the anion exchange resin is a macroporous basic acrylic anion exchange resin, and the amphoteric ion exchange resin is an acrylic-styrene amphoteric...

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PUM

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Abstract

The invention discloses a graphitized carbon material for a lithium battery. The formula of the graphitized carbon material for the lithium battery comprises metal ions, exchange resin, an activatingagent, a modifier, a carbonization regulator and an acid washing solution. Through transition metal modification, graphitization can be catalyzed at a relatively low temperature, and the adsorption capacity of the metal can be improved, so that the electrochemical performance of the finally prepared graphitized carbon material is further improved; heating carbonization is carried out in the presence of the carbonization regulator, and the graphitization degree of the graphitized carbon material can be adjusted by the carbonization regulator, so that the apparent morphology of the graphitized carbon material is improved, and the electrical property of the finally prepared graphitized carbon material is further improved; the adsorption capacity of the metal ions can be improved and multipleholes can be formed in the surfaces of the metal ions by virtue of matching of the activating agent and the exchange resin, so that the surface area of the graphitized carbon material is enlarged; andfinally the acid washing solution is used for carrying out acid washing and improving the electric energy storage capacity of the graphitized material, so that the charge and discharge speed is increased.

Description

Technical field [0001] The invention belongs to the technical field of lithium batteries, and more specifically, relates to a graphitized carbon material for lithium batteries. At the same time, the present invention also relates to a method for preparing graphitized carbon material for lithium batteries. Background technique [0002] Lithium batteries are a type of batteries that use lithium metal or lithium alloy as the negative electrode material and use a non-aqueous electrolyte solution. Due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal have very high environmental requirements. Therefore, lithium batteries have not been used for a long time. With the development of science and technology, lithium batteries have now become the mainstream. At present, the increasingly prominent energy and environmental issues have made the efficient storage and conversion of electric energy and clean energy a matter of focus. Howe...

Claims

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Application Information

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IPC IPC(8): H01M4/583H01M4/587H01M10/052
CPCH01M4/583H01M4/587H01M10/052H01M2004/021Y02E60/10
Inventor 黎燕霞
Owner 李田娣