CN106920939A - Transformant transition metal oxide negative material and preparation method thereof - Google Patents
Transformant transition metal oxide negative material and preparation method thereof Download PDFInfo
- Publication number
- CN106920939A CN106920939A CN201710205130.2A CN201710205130A CN106920939A CN 106920939 A CN106920939 A CN 106920939A CN 201710205130 A CN201710205130 A CN 201710205130A CN 106920939 A CN106920939 A CN 106920939A
- Authority
- CN
- China
- Prior art keywords
- metal oxide
- transition metal
- transformant
- negative material
- negative
- 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
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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/621—Binders
- H01M4/622—Binders being polymers
-
- 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
- H01M4/364—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
- H01M4/36—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
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
-
- 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 battery electrode material preparation field, and in particular to a kind of transformant transition metal oxide negative material and preparation method thereof.Described negative material includes collector and the transformant transition metal oxide film material being coated on collector；Described thin-film material is using Arabic gum aqueous solution as electrode film binding agent, instead of traditional Kynoar, the problem of transition metal oxide electrode material Volume Changes is improved using the pliability of gum arabic, so as to largely improve the high rate performance and cyclical stability of transition metal oxide electrode material.
Description
Technical field
The invention belongs to battery electrode material preparation field, and in particular to a kind of transformant transition metal oxide negative pole material
Material and preparation method thereof.
Background technology
Lithium ion battery is due to high power capacity, high voltage and the remarkable advantage such as having extended cycle life and be widely used in moving
The fields such as dynamic electronic equipment, national defense industry, electric automobile.Currently, the negative pole of lithium ion battery is mainly carbon based negative electrodes material, main
To be graphite cathode material, but the theoretical specific capacity of graphite cathode material is 372mAh/g, relatively low capacity limit battery energy
The further lifting of metric density.Transition metal oxide such as FeO, CoO, NiO, Cu2O etc., because being considered as with capacity higher
It is lithium ion battery negative material that a class has application prospect very much.Transition metal oxide material be broadly divided into powder body material and
The class of thin-film material two.For thin-film material, generally use carbon black, adhesive PVDF and active material and be mixed with electrode slice.But
It is that during charge and discharge cycles, the volume of transition metal oxide electrode material can occur larger expansion, or even cause material
Efflorescence, so as to cause its high rate performance and cyclical stability all poor.
The content of the invention
The purpose of the present invention is to solve the shortcomings of the prior art, there is provided a kind of transformant transition metal oxide negative pole material
Material and preparation method thereof.The present invention instead of traditional poly- inclined fluorine using Arabic gum aqueous solution as electrode film binding agent
Ethene, the problem of transition metal oxide electrode material Volume Changes is improved using the pliability of gum arabic, so that very
Improve to big degree the high rate performance and cyclical stability of transition metal oxide electrode material.
To realize above-mentioned technical proposal, the present invention is adopted the following technical scheme that：
A kind of transformant transition metal oxide negative material includes collector and the transformant transition gold being coated on collector
Category oxide film material；Described thin-film material is using Arabic gum aqueous solution as binding agent.
The concentration of described Arabic gum aqueous solution is 40-100 mgml-1。
The concentration of Arabic gum aqueous solution is directly connected to the making quality of electrode slice, made when concentration is improper
The electrode tablet quality for obtaining is not good, and then influences high rate performance of battery etc..40-100 mg·ml-1It is preferred concentration range, when
Concentration is less than 40 mgml-1Or higher than 100 mgml-1When, the high rate performance of battery is substantially deteriorated.
Described thin-film material is according to mass ratio by transition metal oxide, acetylene black and Arabic gum aqueous solution
70-80:10-15:10-15 mixed grindings.
Described transition metal oxide includes Fe2O3, FeO, CoO, NiO and Cu2O。
A kind of preparation method of the transformant transition metal oxide negative material described in as above any one：By thin-film material
It is uniformly coated on collector and does negative pole after drying,
A kind of lithium ion battery, including positive pole, negative pole and electrolyte, wherein negative pole use negative material as described above.
The beneficial effects of the present invention are：
1）The present invention by the use of gum arabic as electrode film binding agent, with traditional Kynoar as binder phase
Than the pliability of gum arabic can significantly improve the problem of transition metal oxide electrode material Volume Changes, so that very big
Improve the high rate performance and cyclical stability of transition metal oxide electrode material in degree ground；
2）The preparation method of negative material of the invention is easy to operate, low cost, environmental protection, excellent performance, the method can also promote
To fields such as other electrode films.
Brief description of the drawings
Fig. 1 is with Fe2O3It is transition metal oxide, with gum arabic（GA）, Kynoar（PVDF）Respectively as viscous
The high rate performance figure of the lithium ion battery that knot agent is assembled into；
Fig. 2 is with Fe2O3It is transition metal oxide, with gum arabic（GA）, Kynoar（PVDF）Respectively as bonding
The lithium ion battery that agent is assembled into, the cycle performance figure under 0.1A/g current densities.
Fig. 3 is with Fe2O3It is transition metal oxide, with Arabic gum aqueous solution（GA concentration is 20 mgml-1）It is viscous
Tie the high rate performance figure of the lithium ion battery of agent.
Specific embodiment
The present invention further illustrates the present invention with the following example, but protection scope of the present invention is not limited to following reality
Apply example.
Embodiment 1
The assembling of lithium ion battery：
1）First 6 g gum arabics are mixed with 100 ml deionized waters, uniform solution is obtained by stirring and ultrasound（It is dense
It is 60 mgml to spend-1）； 2）Then by Fe2O3:Acetylene black:Gum arabic=78:10:Equably applied after 12 mixed grindings
In 1.2 cm2Copper sheet on work electrode, be lithium metal to electrode, electrolyte is 1 M LiPF6EC+DEC+DMC (EC/
DEC/DMC=1/1/1 v/v/v) solution；Battery pack is carried out in the lower glove box of argon gas protection（Oxygen and moisture are low
In 1ppm）.
Comparative example 1
The assembling of lithium ion battery：
1）Fe in mass ratio2O3:Acetylene black:Kynoar=78:10:After 12 mixed grindings, in dispersant N- methylpyrroles
Into being uniformly coated to 1.3 cm after slurry with the help of alkanone2Copper sheet on work electrode, be lithium metal, electrolyte to electrode
It is 1 M LiPF6EC+DEC+DMC (EC/DEC/DMC=1/1/1 v/v/v) solution.All assemblings are in the hand full of argon gas
Carried out in casing.
As shown in figure 1, preferable high rate performance is showed as the battery of binding agent with gum arabic, in 0.1 Ag-1
Lower its reversible capacity stabilization is in 850 mAhg-1, in 2 Ag-1Current density under, can also keep 300 mAhg-1Capacity.Compare
Compared with for, the battery high rate performance with PVDF as binding agent is very poor, in 2 Ag-1Current density under its capacity less than 35 mAhg-1；To two kinds of cycle performances of battery as shown in Fig. 2 by 100 times circulate after, with gum arabic as binding agent battery
612 mAhg can also be kept-1Capacity, and another then only have 183 mAhg-1Capacity.
The foregoing is only presently preferred embodiments of the present invention, all impartial changes done according to scope of the present invention patent with
Modification, should all belong to covering scope of the invention.
Claims (6)
1. a kind of transformant transition metal oxide negative material, it is characterised in that：Described negative material include collector and
It is coated on the transformant transition metal oxide film material on collector；Described thin-film material is water-soluble with gum arabic
Liquid is used as binding agent.
2. transformant transition metal oxide negative material according to claim 1, it is characterised in that：Described Arab
The concentration of the gummy aqueous solution is 40-100 mg × ml-1。
3. transformant transition metal oxide negative material according to claim 1, it is characterised in that：Described film material
Material is according to mass ratio 70-80 by transition metal oxide, acetylene black and Arabic gum aqueous solution:10-15:10-15 mixes
Grinding.
4. the transformant transition metal oxide negative material according to claim any one of 1-3, it is characterised in that：It is described
Transition metal oxide include Fe2O3, FeO, CoO, NiO and Cu2O。
5. the preparation method of a kind of transformant transition metal oxide negative material as described in claim any one of 1-3, its
It is characterised by：Thin-film material is uniformly coated on drying on collector and does negative pole.
6. a kind of lithium ion battery, including positive pole, negative pole and electrolyte, it is characterised in that：Negative pole is any using claim 1-3
Negative material described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710205130.2A CN106920939A (en) | 2017-03-31 | 2017-03-31 | Transformant transition metal oxide negative material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710205130.2A CN106920939A (en) | 2017-03-31 | 2017-03-31 | Transformant transition metal oxide negative material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106920939A true CN106920939A (en) | 2017-07-04 |
Family
ID=59460696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710205130.2A Pending CN106920939A (en) | 2017-03-31 | 2017-03-31 | Transformant transition metal oxide negative material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106920939A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751530A (en) * | 2011-06-02 | 2012-10-24 | 张潘毅 | High capacity lithium ion battery containing metal conductive substances |
| CN101924200B (en) * | 2010-09-02 | 2013-05-22 | 上海交通大学 | Application of adhesive to lithium-sulfur rechargeable battery anode |
| CN104638240A (en) * | 2015-02-06 | 2015-05-20 | 湖州创亚动力电池材料有限公司 | Method for preparing lithium ion battery silicon carbon composite anode material and product prepared by method |
| KR20160078752A (en) * | 2014-12-24 | 2016-07-05 | 주식회사 포스코 | Negative electrode active material for rechargeable lithium battery, method for manufacturing the same, and rechargeable lithium battery including the same |
-
2017
- 2017-03-31 CN CN201710205130.2A patent/CN106920939A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101924200B (en) * | 2010-09-02 | 2013-05-22 | 上海交通大学 | Application of adhesive to lithium-sulfur rechargeable battery anode |
| CN102751530A (en) * | 2011-06-02 | 2012-10-24 | 张潘毅 | High capacity lithium ion battery containing metal conductive substances |
| KR20160078752A (en) * | 2014-12-24 | 2016-07-05 | 주식회사 포스코 | Negative electrode active material for rechargeable lithium battery, method for manufacturing the same, and rechargeable lithium battery including the same |
| CN104638240A (en) * | 2015-02-06 | 2015-05-20 | 湖州创亚动力电池材料有限公司 | Method for preparing lithium ion battery silicon carbon composite anode material and product prepared by method |
Non-Patent Citations (1)
| Title |
|---|
| LI XU ET AL.: "Low cost and green preparation process for α-Fe2O3@gum arabic electrode for high performance sodium ion batteries", 《JOURNAL OF MATERIALS CHEMISTRY A》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103326027B (en) | A kind of negative electrode of lithium ion battery and lithium ion battery | |
| CN105552306B (en) | A kind of lithium transition-metal oxide battery | |
| CN107611406A (en) | A kind of preparation method of silicon/graphene/carbon composite negative pole material | |
| WO2016202169A2 (en) | High energy density lithium ion battery | |
| CN107749464A (en) | A kind of energy density lithium ion power battery | |
| CN107706361A (en) | A kind of ternary compound potassium ion electrokinetic cell | |
| CN107093701A (en) | A kind of thick electrode preparation method and lithium ion battery with excellent electrochemical performance | |
| CN104810506A (en) | High-energy density lithium ion battery | |
| CN109742324A (en) | Lithium ion battery and its positive plate and preparation method thereof | |
| CN107863567A (en) | It is a kind of for the benefit lithium additive of lithium ion cell positive and its application | |
| CN105742695B (en) | A kind of lithium ion battery and preparation method thereof | |
| CN110212159A (en) | A kind of composite negative pole pole piece and preparation method thereof | |
| CN110021755A (en) | A kind of sodium-ion battery | |
| CN105226256A (en) | For modified cathode material and the lithium titanate battery of lithium titanate battery | |
| CN108807860A (en) | Cathode additive and preparation method thereof, cathode sheets and lithium battery | |
| CN108682862A (en) | A kind of preparation method of lithium ion battery silicon substrate negative plate | |
| CN101752562A (en) | Compound doped modified lithium ion battery anode material and preparation method thereof | |
| CN114094068B (en) | Cobalt-coated positive electrode material, preparation method thereof, positive electrode plate and lithium ion battery | |
| CN106920917A (en) | A kind of preparation method of electrode slurry | |
| CN108091863A (en) | Graphene is modified lithium-rich manganese-based anode material and preparation method thereof | |
| CN107146875A (en) | A kind of heat chemistry blocking-up type composite positive pole, anode pole piece and preparation method thereof, lithium ion battery | |
| CN104835985A (en) | A preparing method of a high-specific-energy lithium ion battery | |
| CN102299365B (en) | Lithium ion battery preventing overdischarge and battery pack thereof | |
| CN108155373A (en) | Negative electrode active material and preparation method thereof, cathode pole piece and battery core | |
| CN106374083B (en) | Silicon substrate negative electrode and preparation method thereof and lithium ion battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170704 |