CN107394153A - A kind of lithium ion battery negative material - Google Patents

A kind of lithium ion battery negative material Download PDF

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Publication number
CN107394153A
CN107394153A CN201710583325.0A CN201710583325A CN107394153A CN 107394153 A CN107394153 A CN 107394153A CN 201710583325 A CN201710583325 A CN 201710583325A CN 107394153 A CN107394153 A CN 107394153A
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CN
China
Prior art keywords
znti
rgo
lithium ion
ball milling
negative material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710583325.0A
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Chinese (zh)
Inventor
魏明灯
王建标
沈德立
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Fuzhou University
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Fuzhou University
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Publication date
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Priority to CN201710583325.0A priority Critical patent/CN107394153A/en
Publication of CN107394153A publication Critical patent/CN107394153A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • 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
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/485—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
    • 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
    • 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

Abstract

The invention belongs to technical field of lithium ion, and in particular to a kind of lithium ion battery negative material.By titanium dioxide P25, Zn (Ac)2, LiAc, LiCl, KCl is put into successively carries out ball milling one hour in ball grinder, then put into after being calcined two hours at 600 DEG C in Muffle furnace, products obtained therefrom is washed with water for several times, drying, obtain Li2ZnTi3O8Nano particle, prepare graphene oxide GO using Hummer method, and by 180 DEG C hydrothermal reduction prepare graphene aerogel, then by graphene aerogel and Li2ZnTi3O8Particle prepares Li in high-energy ball milling tank ball milling 2h2ZnTi3O8/ RGO compound.The present invention prepares Li of the size in 25 30 nm2ZnTi3O8/ RGO compound, it is applied to lithium battery and obtains higher specific capacity and preferable cyclical stability.

Description

A kind of lithium ion battery negative material
Technical field
The invention belongs to technical field of lithium ion, and in particular to a kind of lithium ion battery negative material.
Background technology
So far, lithium ion battery is had been obtained for being widely applied, but lithium ion battery electrode material usually can There are poor circulation, the problems of the shorter grade of service life, therefore to obtain safety, efficient lithium ion battery negative material Always institute's research emphasis of scientist.The negative material industrially commonly used now has graphite, lithium metal etc..But as lithium metal The shortcomings of security performance hidden danger and high rate performance difference being all present with graphite this two classes material.Compare this different materials, Li2ZnTi3O8By feat of its distinctive structure, a kind of good negative material is become.
The content of the invention
It is an object of the invention to provide a kind of Li2ZnTi3O8The preparation and application of/RGO lithium ion battery negative materials.
To achieve the above object, the present invention adopts the following technical scheme that：
The present invention uses simple synthetic method, prepares size in 25-30 nm Li2ZnTi3O8/ RGO particles.Applied to lithium Battery obtains higher specific capacity and preferable cyclical stability, after when current density is 0.5 A/g, charge and discharge cycles 500 are enclosed Capacity is stable in 260 mA h/g.Bright 3rd circle of CV charts and the 5th cycle basis originally coincide simultaneously, illustrate Li2ZnTi3O8This material Stable electrochemical property.
Li2ZnTi3O8/ RGO preparation method is by titanium dioxide P25 (500mg), Zn (Ac)2(456.6mg), LiAc (424.4mg), LiCl (300mg), KCl (200mg) are put into successively carries out ball milling one hour in ball grinder, then put Muffle into After being calcined two hours at 600 DEG C in stove, products obtained therefrom is washed with water for several times, drying, you can obtain Li2ZnTi3O8Nanometer Particle, graphene oxide GO is prepared using Hummerhood method, and by 180 DEG C hydrothermal reduction prepare graphene Aeroge RGO；
Lithium battery assembles：Count in mass ratio, Li2ZnTi3O8/ RGO nano-particles：Kynoar：Acetylene black=70：20：10 is mixed Equably it is coated on copper mesh after closing grinding and does negative pole, reference electrode and be lithium metal to electrode, electrolyte is 1M LiClO4's EC+DMC (EC/DMC=1/1 v/v) solution.All assemblings are carried out in glove box.
The remarkable advantage of the present invention is：
The invention provides molte-salt synthesis to prepare Li2ZnTi3O8/ RGO nano-particles and its shown in lithium ion battery excellent Chemical property, this method technique is simple, and inexpensive, energy consumption is low, favorable reproducibility, excellent performance.
Brief description of the drawings
Fig. 1 is Li2ZnTi3O8/ RGO and Li2ZnTi3O8XRD, the position at all peaks all coincide；
Fig. 2-a are Li2ZnTi3O8/ RGO SEM figures；The SEM that Fig. 2-b are RGO schemes；
Fig. 3 is Li2ZnTi3O8/ RGO is in the cycle performance figure that current density is 0.5 A/g；
Fig. 4 is Li2ZnTi3O8/ RGO CV curve maps.
Embodiment
For the further open rather than limitation present invention, below in conjunction with example, the present invention is described in further detail.
Embodiment 1
Li2ZnTi3O8Preparation method be by titanium dioxide P25 (500mg), Zn (Ac)2(456.6mg), LiAc (424.4mg), LiCl (300mg), KCl (200mg) are put into successively carries out ball milling one hour in ball grinder, then put Muffle into After being calcined two hours at 600 DEG C in stove, products obtained therefrom is washed with water for several times, drying, you can obtain Li2ZnTi3O8Nanometer Particle, graphene oxide GO is prepared using Hummerhood method, and by 180 DEG C hydrothermal reduction prepare graphene Aeroge RGO；
Lithium battery assembles：Count in mass ratio, Li2ZnTi3O8/ RGO nano-particles：Kynoar：Acetylene black=70：20：10 is mixed Equably it is coated on copper mesh after closing grinding and does negative pole, reference electrode and be lithium metal to electrode, electrolyte is 1M LiClO4's EC+DMC (EC/DMC=1/1 v/v) solution.All assemblings are carried out in glove box.
The foregoing is only presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with Modification, it should all belong to the covering scope of the present invention.

Claims (2)

  1. A kind of 1. lithium ion battery negative material, it is characterised in that：The negative material is by Li2ZnTi3O8/ RGO nano-particles and Kynoar and acetylene black are formed；Count in mass ratio, Li2ZnTi3O8/ RGO nano-particles：Kynoar：Acetylene black= 70：20：10.
  2. A kind of 2. lithium ion battery negative material according to claim 1, it is characterised in that：
    Li2ZnTi3O8/ RGO preparation method：
    （1）By 500mg titanium dioxide P25,456.6mgZn (Ac)2, 424.4mgLiAc, 300mgLiCl, 200mgKCl is successively Put into and ball milling is carried out in ball grinder one hour, then put into after being calcined two hours at 600 DEG C in Muffle furnace, products obtained therefrom is used Water washing for several times, drying, obtains Li2ZnTi3O8Nano particle；
    （2）Prepare graphene oxide GO using Hummerhood method, and by 180 DEG C hydrothermal reduction prepare graphite Alkene aeroge RGO；
    （3）Then by graphene aerogel and Li2ZnTi3O8Particle prepares Li in high-energy ball milling tank ball milling 2h2ZnTi3O8/ RGO compound.
CN201710583325.0A 2017-07-18 2017-07-18 A kind of lithium ion battery negative material Pending CN107394153A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710583325.0A CN107394153A (en) 2017-07-18 2017-07-18 A kind of lithium ion battery negative material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710583325.0A CN107394153A (en) 2017-07-18 2017-07-18 A kind of lithium ion battery negative material

Publications (1)

Publication Number Publication Date
CN107394153A true CN107394153A (en) 2017-11-24

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Country Status (1)

Country Link
CN (1) CN107394153A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109449012A (en) * 2018-11-13 2019-03-08 江西宏柏新材料股份有限公司 A kind of preparation method of carboxylic carbon nano-tube/graphene aerogel/nickel foam combination electrode material

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102769135A (en) * 2012-08-09 2012-11-07 福州大学 Li2ZnTi3O8/C nanocomposite synthesized by sol-gel method in one step and application of Li2ZnTi3O8/C nanocomposite
CN104143631A (en) * 2014-05-12 2014-11-12 上海大学 Method for preparing graphene aerogel loaded tin dioxide composite material
CN104577065A (en) * 2014-12-30 2015-04-29 深圳市贝特瑞纳米科技有限公司 Li2ZnTi3O8 compounded anode material and preparation method thereof
CN104617285A (en) * 2014-12-16 2015-05-13 天津大学 Lithium ion battery negative electrode material Li2ZnTi3O8 preparation method
CN104701518A (en) * 2014-12-22 2015-06-10 南阳师范学院 Preparation method of Li2ZnTi3O8 negative electrode material
CN104953101A (en) * 2015-06-24 2015-09-30 上海交通大学 Method for manufacturing thermal-treated graphene aerogel-loading tin dioxide electrode material

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102769135A (en) * 2012-08-09 2012-11-07 福州大学 Li2ZnTi3O8/C nanocomposite synthesized by sol-gel method in one step and application of Li2ZnTi3O8/C nanocomposite
CN104143631A (en) * 2014-05-12 2014-11-12 上海大学 Method for preparing graphene aerogel loaded tin dioxide composite material
CN104617285A (en) * 2014-12-16 2015-05-13 天津大学 Lithium ion battery negative electrode material Li2ZnTi3O8 preparation method
CN104701518A (en) * 2014-12-22 2015-06-10 南阳师范学院 Preparation method of Li2ZnTi3O8 negative electrode material
CN104577065A (en) * 2014-12-30 2015-04-29 深圳市贝特瑞纳米科技有限公司 Li2ZnTi3O8 compounded anode material and preparation method thereof
CN104953101A (en) * 2015-06-24 2015-09-30 上海交通大学 Method for manufacturing thermal-treated graphene aerogel-loading tin dioxide electrode material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109449012A (en) * 2018-11-13 2019-03-08 江西宏柏新材料股份有限公司 A kind of preparation method of carboxylic carbon nano-tube/graphene aerogel/nickel foam combination electrode material
CN109449012B (en) * 2018-11-13 2020-07-28 江西宏柏新材料股份有限公司 Preparation method of foamed nickel-loaded nano carbon material aerogel composite electrode material

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Application publication date: 20171124

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