CN103545499A - Carbon black-modified lithium titanate negative electrode material as well as preparation method thereof - Google Patents

Carbon black-modified lithium titanate negative electrode material as well as preparation method thereof Download PDF

Info

Publication number
CN103545499A
CN103545499A CN201310523586.5A CN201310523586A CN103545499A CN 103545499 A CN103545499 A CN 103545499A CN 201310523586 A CN201310523586 A CN 201310523586A CN 103545499 A CN103545499 A CN 103545499A
Authority
CN
China
Prior art keywords
powder
carbon black
lithium titanate
silver powder
parts
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
CN201310523586.5A
Other languages
Chinese (zh)
Inventor
林彭桃君
蒋森
陈夕顺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HEFEI HENGNENG NEW ENERGY TECHNOLOGY Co Ltd
Original Assignee
HEFEI HENGNENG NEW ENERGY TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HEFEI HENGNENG NEW ENERGY TECHNOLOGY Co Ltd filed Critical HEFEI HENGNENG NEW ENERGY TECHNOLOGY Co Ltd
Priority to CN201310523586.5A priority Critical patent/CN103545499A/en
Publication of CN103545499A publication Critical patent/CN103545499A/en
Pending legal-status Critical Current

Links

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
    • H01M4/48—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
    • H01M4/362—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
    • 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

Abstract

The invention discloses a carbon black-modified lithium titanate negative electrode material which is characterized by being prepared from the raw materials in parts by weight: 400 parts of lithium titanate, 3-4 parts of carbon black, 1-2 parts of cerous sulfate, 1-2 parts of barium sulfate, 3-4 parts of sodium tripolyphosphate, 4-5 parts of modified silver powder and an appropriate amount of water. According to the material disclosed by the invention, the modified silver powder is added, so that the performance of a lithium ion battery with the material as the negative electrode material is improved, and the carbon black is added as a conductive agent, so that the material still has excellent circulating performance and rate performance. Furthermore, the material disclosed by the invention has the advantages of no toxicity, no pollution, good safety performance, wide raw material source, low price, long service life and the like.

Description

A kind of carbon black modified lithium titanate anode material and preparation method thereof
Technical field
The present invention relates to chemical energy source Material Field, particularly a kind of carbon black modified lithium titanate anode material and preparation method thereof.
Background technology
As lithium ion battery negative material-lithium titanate, due to high security, high stability, long-life and the environmental protection of lithium titanate, become the negative material of lithium ion battery of new generation and be widely used in new-energy automobile, battery-operated motor cycle and require high security, high stability and macrocyclic application.(1) it is zero strain material, good cycle (2) discharging voltage balance, and also electrolyte is unlikely decomposes, and improves lithium battery security performance; (3) compare with carbon cathode material, lithium titanate has high lithium ion diffusion coefficient, can high power charging-discharging etc. the electromotive force of (4) lithium titanate than the height of pure metal lithium, be difficult for producing lithium dendrite arm, for ensureing that the safety of lithium battery provides the foundation.But also have certain shortcoming, for example the lithium-ion-power cell energy density of other types can be lower relatively; The lithium-ion-power cell of other types is on the high side relatively; Battery consistency still there are differences etc., need further research and development.
Summary of the invention
The object of this invention is to provide a kind of carbon black modified lithium titanate anode material and preparation method thereof.
In order to realize object of the present invention, the present invention passes through following scheme implementation:
A lithium titanate anode material, is made by the raw material of following weight portion: lithium titanate 400, carbon black 3-4, cerous sulfate 1-2, barium sulfate 1-2, sodium phosphate trimer 3-4, modification silver powder 4-5, water are appropriate;
Described modification silver powder is made by the raw material of following weight portion: silver powder 100, nano-sized carbon 1-2, kaolin powder 1-2, inositol hexaphosphate 2-3, borax 1-2, silica flour 1-2, aminopropyl triethoxysilane 1-2, Fe 3o 42-3, SnO 21-2, V 2o 51-2; Each raw material is mixed, be heated to 50-55 ℃, grind 1-2 hour, be uniformly dispersed into powder, send in calciner at 550-580 ℃ sintering 2-3 hour and get final product.
Carbon black modified lithium titanate anode material of the present invention, is made by following concrete steps: other raw material except modification silver powder is mixed, add suitable quantity of water, grind and within 2-3 hour, obtain 200-400 order slurry, spraying is dry, after oven dry, mix with modification silver powder, add the Tissuemat E powder that is equivalent to powder total weight 2-3%, stir, under 10-15Mpa pressure, be pressed into base, put into calciner and calcine 4-5 hour at 620-650 ℃, take out, cooling, be ground into 300-400 order powder.
The invention has the beneficial effects as follows: the present invention adds modification silver powder,, thereby improved, using this material as the performance of lithium ion battery of negative material, add carbon black still to there is excellent cycle performance and high rate performance as conductive agent; And the present invention has the advantages such as nontoxic, pollution-free, security performance is good, raw material wide material sources, low price, and the life-span is long.
Embodiment
Below by instantiation, the present invention is described in detail.
A lithium titanate anode material, by following weight portion (kilogram) raw material make: lithium titanate 400, carbon black 3, cerous sulfate 1, barium sulfate 1, sodium phosphate trimer 3, modification silver powder 4, water are appropriate;
Described modification silver powder by following weight portion (kilogram) raw material make: silver powder 100, nano-sized carbon 1, kaolin powder 1, inositol hexaphosphate 2, borax 2, silica flour 1, aminopropyl triethoxysilane 1, Fe 3o 43, SnO 21, V 2o 51; Each raw material is mixed, be heated to 50-55 ℃, grind 1-2 hour, be uniformly dispersed into powder, send in calciner at 550-580 ℃ sintering 2-3 hour and get final product.
Carbon black modified lithium titanate anode material of the present invention, is made by following concrete steps: other raw material except modification silver powder is mixed, add suitable quantity of water, grind and within 2-3 hour, obtain 200-400 order slurry, spraying is dry, after oven dry, mix with modification silver powder, add the Tissuemat E powder that is equivalent to powder total weight 2-3%, stir, under 10-15Mpa pressure, be pressed into base, put into calciner and calcine 4-5 hour at 620-650 ℃, take out, cooling, be ground into 300-400 order powder.
Lithium titanate material of the present invention, negative pole as lithium ion battery, the LiFePO 4 material of usining is assembled into cylindrical 14500 batteries as positive pole, employing LiFePO4 is excessive, according to lithium titanate meter of the present invention, and its initial charge specific capacity > 176mAh/g, specific discharge capacity > 163mAh/g, cycle performance is excellent, and its 10C multiplying power discharging specific capacity is greater than 132mAh/g, and its tap density is 0.9-1.5g/cm 3, specific area is 0.1-10m 2/ g, compacted density is 2.1-2.5g/cm 3, adhesive property is good, is applicable to large-scale production and application.

Claims (2)

1. a carbon black modified lithium titanate anode material, is characterized in that, by the raw material of following weight portion, is made: lithium titanate 400, carbon black 3-4, cerous sulfate 1-2, barium sulfate 1-2, sodium phosphate trimer 3-4, modification silver powder 4-5, water are appropriate;
Described modification silver powder is made by the raw material of following weight portion: silver powder 100, nano-sized carbon 1-2, kaolin powder 1-2, inositol hexaphosphate 2-3, borax 1-2, silica flour 1-2, aminopropyl triethoxysilane 1-2, Fe 3o 42-3, SnO 21-2, V 2o 51-2; Each raw material is mixed, be heated to 50-55 ℃, grind 1-2 hour, be uniformly dispersed into powder, send in calciner at 550-580 ℃ sintering 2-3 hour and get final product.
2. carbon black modified lithium titanate anode material according to claim 1, it is characterized in that, by following concrete steps, made: other raw material except modification silver powder is mixed, add suitable quantity of water, grind and within 2-3 hour, obtain 200-400 order slurry, spraying is dry, after oven dry, mix with modification silver powder, add the Tissuemat E powder that is equivalent to powder total weight 2-3%, stir, under 10-15Mpa pressure, be pressed into base, put into calciner and calcine 4-5 hour at 620-650 ℃, take out, cooling, be ground into 300-400 order powder.
CN201310523586.5A 2013-10-30 2013-10-30 Carbon black-modified lithium titanate negative electrode material as well as preparation method thereof Pending CN103545499A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310523586.5A CN103545499A (en) 2013-10-30 2013-10-30 Carbon black-modified lithium titanate negative electrode material as well as preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310523586.5A CN103545499A (en) 2013-10-30 2013-10-30 Carbon black-modified lithium titanate negative electrode material as well as preparation method thereof

Publications (1)

Publication Number Publication Date
CN103545499A true CN103545499A (en) 2014-01-29

Family

ID=49968739

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310523586.5A Pending CN103545499A (en) 2013-10-30 2013-10-30 Carbon black-modified lithium titanate negative electrode material as well as preparation method thereof

Country Status (1)

Country Link
CN (1) CN103545499A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110407248A (en) * 2019-08-06 2019-11-05 南京兴旺新能源有限公司 The method that anatase titanium dioxide prepares lithium titanate lithium cell cathode material
CN110422875A (en) * 2019-08-06 2019-11-08 南京兴旺新能源有限公司 The preparation method of high-tap density high compacted density lithium titanate lithium cell cathode material
CN112928275A (en) * 2021-01-27 2021-06-08 鸡西市唯大新材料科技有限公司 Method for preparing lithium ion carbon negative electrode material by carrying out organic phosphorus modification on carbon black surface

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101488584A (en) * 2009-03-06 2009-07-22 清华大学 Asymmetric lithium iron phosphate cell using lithium titanate as main active substance of negative pole

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101488584A (en) * 2009-03-06 2009-07-22 清华大学 Asymmetric lithium iron phosphate cell using lithium titanate as main active substance of negative pole

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110407248A (en) * 2019-08-06 2019-11-05 南京兴旺新能源有限公司 The method that anatase titanium dioxide prepares lithium titanate lithium cell cathode material
CN110422875A (en) * 2019-08-06 2019-11-08 南京兴旺新能源有限公司 The preparation method of high-tap density high compacted density lithium titanate lithium cell cathode material
CN112928275A (en) * 2021-01-27 2021-06-08 鸡西市唯大新材料科技有限公司 Method for preparing lithium ion carbon negative electrode material by carrying out organic phosphorus modification on carbon black surface
CN112928275B (en) * 2021-01-27 2022-09-06 鸡西市唯大新材料科技有限公司 Method for preparing lithium ion carbon negative electrode material by performing organic phosphorus modification on carbon black surface

Similar Documents

Publication Publication Date Title
CN105552324A (en) Preparation method for lithium iron phosphate coated lithium nickel cobalt manganese composite material
CN109244539A (en) Organic-inorganic composite solid electrolyte material and its preparation method and application
CN103545502A (en) Compound element-doped modified lithium titanate anode material and preparation method thereof
CN102130359A (en) Lithium sulfur battery and preparation method thereof
CN104577111B (en) A kind of composite containing fluorine-containing phosphoric acid titanium compound and its production and use
CN108630899A (en) The manufacturing method of sodium-ion battery
CN103545499A (en) Carbon black-modified lithium titanate negative electrode material as well as preparation method thereof
CN104103835B (en) Cathode material for sodium ion battery, and preparation method of cathode material
CN104103836B (en) A kind of sodium and manganese codoped modification ferric metasilicate lithium positive electrode material and preparation method thereof
CN103531771A (en) Composite lithium titanate negative electrode material doped with molybdenum and preparing method thereof
CN103531767A (en) Lithium battery special-purpose modified lithium titanate negative electrode material and preparation method thereof
CN103531768A (en) Doped modified lithium titanate negative electrode material and preparation method thereof
CN103560239A (en) Graphite-modified lithium titanate negative electrode material and preparation method thereof
CN103545514A (en) Graphene-modified lithium iron phosphate material as well as preparation method thereof
CN103531769A (en) Lithium battery modified lithium titanate negative electrode material and preparation method thereof
CN103531784A (en) Modified composite lithium manganate positive electrode material and preparation method thereof
CN103531788A (en) Modified lithium manganate positive electrode material for lithium battery and preparation method of modified lithium manganate positive electrode material
CN103531774A (en) Modified lithium titanate negative electrode material made of nanometer material and preparing method thereof
CN103545516A (en) Lithium iron phosphate positive material for lithium battery and preparation method of the positive material
CN103531800A (en) Modified lithium iron phosphate positive electrode material and preparation method thereof
CN103545515A (en) Doped and modified lithium iron phosphate material special for lithium ion battery and preparation method of material
CN103531770A (en) High-performance lithium battery lithium titanate negative electrode material and preparation method thereof
CN104167538A (en) Preparation method of Li4Ti5O12/NiSn composite material
CN103531780A (en) Lithium ion battery positive electrode e lithium manganate material and preparation method thereof
CN103545500A (en) Surface-modified composite lithium titanate anode material and preparation method thereof

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20140129

RJ01 Rejection of invention patent application after publication