CN106784672A - A kind of method for preparing aluminum hull cell phone lithium-ion batteries negative material - Google Patents

A kind of method for preparing aluminum hull cell phone lithium-ion batteries negative material Download PDF

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Publication number
CN106784672A
CN106784672A CN201611163620.2A CN201611163620A CN106784672A CN 106784672 A CN106784672 A CN 106784672A CN 201611163620 A CN201611163620 A CN 201611163620A CN 106784672 A CN106784672 A CN 106784672A
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China
Prior art keywords
needle coke
cell phone
negative material
ion batteries
powder needle
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CN201611163620.2A
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Chinese (zh)
Inventor
罗年生
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Hengyang Xinsheng New Energy Co Ltd
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Hengyang Xinsheng New Energy Co Ltd
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Priority to CN201611163620.2A priority Critical patent/CN106784672A/en
Publication of CN106784672A publication Critical patent/CN106784672A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/362—Composites
    • H01M4/364—Composites as mixtures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/362—Composites
    • H01M4/366—Composites as layered products
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/483—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides for non-aqueous cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
    • H01M4/5825—Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
    • H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
    • H01M4/587—Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/624—Electric conductive fillers
    • H01M4/625—Carbon or graphite
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

The invention discloses a kind of method for preparing aluminum hull cell phone lithium-ion batteries negative material, including step：1) petroleum needle coke is crushed to the powder needle coke that particle diameter is 3~6 μm；2) the powder needle coke is carried out into deliming 1~3 hour in 400~600 DEG C in strong base solution, then carries out pickling in an acidic solution, then washed and dry；3) the powder needle coke is carbonized and then is mixed with chromium source compound, obtain mixture；Wherein described chromium source compound is chromic nitrate, chromic acetate, chromium trioxide or other chromate；4) mixture is carried out into coating, makes its Surface coating last layer carbon, that is, the cell phone lithium-ion batteries negative material is obtained；The charge and discharge potential for making to use electrode obtained in the lithium ion battery negative material is 0.25~0.5V, and specific capacity remains at 280~300mAh/g after 180 repeated charges, and has good suitability to electrolyte.

Description

A kind of method for preparing aluminum hull cell phone lithium-ion batteries negative material
Technical field
The present invention relates to chemical synthesis process technical field, specifically one kind prepares aluminum hull cell phone lithium-ion batteries and bears Pole material and its method for preparation.
Background technology
At present, in the energy resource structure in China or the whole world, coal, oil, natural gas primary energy account for more than 90%, and it is stored up Reserve only for exploitation 50 years or so, therefore development new energy necessarily turn into immune from the economic downturn, create employment opportunities, seizing future Develop the grand strategy industry of commanding elevation.In the new energy system such as solar energy, wind energy, nuclear energy, lithium ion battery is because of its energy Density is high, power density is high, good cycle, environment-friendly, structure diversification and the excellent specific property such as cheap become The first-selected power supply of the walkie electronic apparatus such as video camera, mobile phone, notebook computer, is also future space technology and high-end storage The ideal source of energy system.
Lithium ion battery is mainly made up of positive pole, negative pole, barrier film and electrolyte, wherein can preparing, energy density be high, work( Rate density is high, have extended cycle life, the negative material of low cost is one of most active branch of the research direction, is also restriction lithium Can ion battery continue the determinant developed to high-tech areas such as hybrid vehicle, space flight and aviation.
The content of the invention
It is not enough in order to make up the above, the invention provides a kind of side for preparing aluminum hull cell phone lithium-ion batteries negative material Method.
The technical scheme is that：
A kind of method for preparing aluminum hull cell phone lithium-ion batteries negative material, including step：
1) petroleum needle coke is crushed to the powder needle coke that particle diameter is 3~6 μm；
2) the powder needle coke is carried out into deliming 1~3 hour in 400~600 DEG C in strong base solution, then it is molten in acidity Pickling is carried out in liquid, is then washed and is dried；
3) the powder needle coke is carbonized and then is mixed with chromium source compound, obtain mixture；Wherein described chromium source Compound is chromic nitrate, chromic acetate, chromium trioxide or other chromate；
4) mixture is carried out into coating, makes its Surface coating last layer carbon, that is, the cell phone lithium-ion batteries are obtained Negative material.
As preferred technical scheme, step 2) described in highly basic be one kind or two in potassium hydroxide, NaOH The mixing of person.
As preferred technical scheme, step 3) in by the powder needle coke charing, be by the powder needle coke with Catalyst is well mixed, and is carbonized 1~3 hour at 700~900 DEG C.
As preferred technical scheme, step 2) described in acid solution be one or two in hydrochloric acid, sulfuric acid, nitric acid Mixing above.
Beneficial effects of the present invention：
By melting the modification technologies such as etching, coating, make filling using electrode obtained in the lithium ion battery negative material Discharge potential is 0.25~0.5V, and initial coulomb efficiency is higher than 85%, and specific capacity is remained at after 180 repeated charges 280~300mAh/g, and there is good suitability to electrolyte.
By adopting the above-described technical solution, a kind of method for preparing aluminum hull cell phone lithium-ion batteries negative material, including Step：1) petroleum needle coke is crushed to the powder needle coke that particle diameter is 3~6 μm；2) by the powder needle coke in 400~ 600 DEG C carry out deliming 1~3 hour in strong base solution, then carry out pickling in an acidic solution, then wash and dry；3) will Then the powder needle coke charing mixes with chromium source compound, obtains mixture；Wherein described chromium source compound be chromic nitrate, Chromic acetate, chromium trioxide or other chromate；4) mixture is carried out into coating, makes its Surface coating last layer carbon, i.e., The cell phone lithium-ion batteries negative material is obtained；By melting the modification technologies such as etching, coating, make using the lithium ion battery The charge and discharge potential of electrode obtained in negative material is 0.25~0.5V, and initial coulomb efficiency is higher than 85%, and specific capacity is at 180 times 280~300mAh/g is remained at after repeated charge, and there is good suitability to electrolyte.
Specific embodiment
A kind of method for preparing aluminum hull cell phone lithium-ion batteries negative material, including step：
1) petroleum needle coke is crushed to the powder needle coke that particle diameter is 3~6 μm；
2) the powder needle coke is carried out into deliming 1~3 hour in 400~600 DEG C in strong base solution, then it is molten in acidity Pickling is carried out in liquid, is then washed and is dried；
3) the powder needle coke is carbonized and then is mixed with chromium source compound, obtain mixture；Wherein described chromium source Compound is chromic nitrate, chromic acetate, chromium trioxide or other chromate；
4) mixture is carried out into coating, makes its Surface coating last layer carbon, that is, the cell phone lithium-ion batteries are obtained Negative material.
Step 2) described in highly basic be one or both of potassium hydroxide, NaOH mixing.
Step 3) in by the powder needle coke charing, be that the powder needle coke is well mixed with catalyst, 700 ~900 DEG C carbonize 1~3 hour.
Step 2) described in acid solution be one or more mixing in hydrochloric acid, sulfuric acid, nitric acid.
The present invention is expanded on further with reference to specific embodiment.
Embodiment one：
A kind of method for preparing aluminum hull cell phone lithium-ion batteries negative material, including step：
1) petroleum needle coke is crushed to the powder needle coke that particle diameter is 3 μm；
2) the powder needle coke is carried out into deliming 1 hour in 400 DEG C in strong base solution, then is carried out in an acidic solution Pickling, then washes and dries；
3) the powder needle coke is carbonized and then is mixed with chromium source compound, obtain mixture；Wherein described chromium source Compound is chromic nitrate, chromic acetate, chromium trioxide or other chromate；
4) mixture is carried out into coating, makes its Surface coating last layer carbon, that is, the cell phone lithium-ion batteries are obtained Negative material.
Step 2) described in highly basic be potassium hydroxide.
Step 3) in by the powder needle coke charing, be that the powder needle coke is well mixed with catalyst, 700 DEG C charing 1 hour.
Step 2) described in acid solution be hydrochloric acid, sulfuric acid mixing.
Embodiment two：
A kind of method for preparing aluminum hull cell phone lithium-ion batteries negative material, including step：
1) petroleum needle coke is crushed to the powder needle coke that particle diameter is 5 μm；
2) the powder needle coke is carried out into deliming 2 hours in 500 DEG C in strong base solution, then is carried out in an acidic solution Pickling, then washes and dries；
3) the powder needle coke is carbonized and then is mixed with chromium source compound, obtain mixture；Wherein described chromium source Compound is chromic nitrate, chromic acetate, chromium trioxide or other chromate；
4) mixture is carried out into coating, makes its Surface coating last layer carbon, that is, the cell phone lithium-ion batteries are obtained Negative material.
Step 2) described in highly basic be NaOH.
Step 3) in by the powder needle coke charing, be that the powder needle coke is well mixed with catalyst, 800 DEG C charing 2 hours.
9 it is rapid 2) described in acid solution be hydrochloric acid, sulfuric acid, nitric acid mixing.
Embodiment three：
A kind of method for preparing aluminum hull cell phone lithium-ion batteries negative material, including step：
1) petroleum needle coke is crushed to the powder needle coke that particle diameter is 6 μm；
2) the powder needle coke is carried out into deliming 3 hours in 600 DEG C in strong base solution, then is carried out in an acidic solution Pickling, then washes and dries；
3) the powder needle coke is carbonized and then is mixed with chromium source compound, obtain mixture；Wherein described chromium source Compound is chromic nitrate, chromic acetate, chromium trioxide or other chromate；
4) mixture is carried out into coating, makes its Surface coating last layer carbon, that is, the cell phone lithium-ion batteries are obtained Negative material.
Step 2) described in highly basic be potassium hydroxide, NaOH mixing.
Step 3) in by the powder needle coke charing, be that the powder needle coke is well mixed with catalyst, 900 DEG C charing 3 hours.
Step 2) described in acid solution be hydrochloric acid.
Electrode performance parameter such as following table prepared by various embodiments of the present invention：
As seen from the above table, make to use the charge and discharge potential of electrode obtained in the lithium ion battery negative material for 0.25~ 0.5V, initial coulomb efficiency is higher than 85%, and specific capacity remains at 280~300mAh/g after 180 repeated charges, and right Electrolyte has good suitability.
General principle of the invention, principal character and advantages of the present invention has been shown and described above.The technology of the industry Personnel it should be appreciated that the present invention is not limited to the above embodiments, simply explanation described in above-described embodiment and specification this The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appending claims and its Equivalent thereof.

Claims (4)

1. a kind of method for preparing aluminum hull cell phone lithium-ion batteries negative material, it is characterised in that including step：
1) petroleum needle coke is crushed to the powder needle coke that particle diameter is 3~6 μm；
2) the powder needle coke is carried out into deliming 1~3 hour in 400~600 DEG C in strong base solution, then in an acidic solution Pickling is carried out, is then washed and is dried；
3) the powder needle coke is carbonized and then is mixed with chromium source compound, obtain mixture；Wherein described chromium source compound It is chromic nitrate, chromic acetate, chromium trioxide or other chromate；
4) mixture is carried out into coating, makes its Surface coating last layer carbon, that is, the cell phone lithium-ion batteries negative pole is obtained Material.
2. a kind of method for preparing aluminum hull cell phone lithium-ion batteries negative material according to claim 1, it is characterised in that： Step 2) described in highly basic be one or both of potassium hydroxide, NaOH mixing.
3. the method for preparing aluminum hull cell phone lithium-ion batteries negative material according to claim 1, it is characterised in that：Step 3) the powder needle coke is carbonized in, is that the powder needle coke is well mixed with catalyst, 1 is carbonized at 700~900 DEG C ~3 hours.
4. the method for preparing aluminum hull cell phone lithium-ion batteries negative material according to claim 1, it is characterised in that：Step 2) acid solution described in is one or more the mixing in hydrochloric acid, sulfuric acid, nitric acid.
CN201611163620.2A 2016-12-15 2016-12-15 A kind of method for preparing aluminum hull cell phone lithium-ion batteries negative material Pending CN106784672A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1909268A (en) * 2006-07-10 2007-02-07 深圳市贝特瑞电子材料有限公司 Lithium ion battery negative electrode material containing PC dissolvent electrolytic solution and its preparation method
CN101887967A (en) * 2010-06-18 2010-11-17 深圳市贝特瑞新能源材料股份有限公司 Lithium ion battery cathode material and preparation method thereof
CN101924209A (en) * 2009-06-16 2010-12-22 上海宝钢化工有限公司 Lithium ion battery cathode material and preparation method thereof
CN102484252A (en) * 2009-07-23 2012-05-30 Gs加特克斯公司 Cathode Material For A Lithium Secondary Battery, Method For Manufacturing Same, And Lithium Secondary Battery Including The Cathode Material

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1909268A (en) * 2006-07-10 2007-02-07 深圳市贝特瑞电子材料有限公司 Lithium ion battery negative electrode material containing PC dissolvent electrolytic solution and its preparation method
CN101924209A (en) * 2009-06-16 2010-12-22 上海宝钢化工有限公司 Lithium ion battery cathode material and preparation method thereof
CN102484252A (en) * 2009-07-23 2012-05-30 Gs加特克斯公司 Cathode Material For A Lithium Secondary Battery, Method For Manufacturing Same, And Lithium Secondary Battery Including The Cathode Material
CN101887967A (en) * 2010-06-18 2010-11-17 深圳市贝特瑞新能源材料股份有限公司 Lithium ion battery cathode material and preparation method thereof

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