CN104409704A - Nano porous oxide electrode material for lithium ion battery - Google Patents
Nano porous oxide electrode material for lithium ion battery Download PDFInfo
- Publication number
- CN104409704A CN104409704A CN201410706557.7A CN201410706557A CN104409704A CN 104409704 A CN104409704 A CN 104409704A CN 201410706557 A CN201410706557 A CN 201410706557A CN 104409704 A CN104409704 A CN 104409704A
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- CN
- China
- Prior art keywords
- nano porous
- nanoporous
- lithium ion
- oxide electrode
- electrode material
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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
-
- 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
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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
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
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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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
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- 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 nano porous oxide electrode material for a lithium ion battery. The nano porous oxide electrode material comprises a C-frame reinforced nano porous SnO2 composite material. The preparation method of the nano porous oxide electrode material specifically comprises the following steps: (1) mixing ethanediol, alcohol and methanol, and adding stannous salt to prepare a stannous salt precursor solution; (2) adding oxalic acid to the stannous salt precursor solution, and stirring and mixing uniformly to obtain a stannous oxalate precursor; (3) calcining the stannous oxalate precursor in air to obtain a nano porous SnO2 material;(4) mixing the nano porous SnO2 material with a glucose solution, and reacting for 3-6 hours under 45-85 DEG C water bath conditions to obtain a C-frame reinforced nano porous SnO2 precursor; (5) calcining the C-frame reinforced nano porous SnO2 precursor under a protective atmosphere to obtain the C-frame reinforced nano porous SnO2 composite material. The prepared nano porous oxide electrode material is applied to power lithium ion batteries, and nano porous oxide and a composite material thereof for energy-storage lithium ion batteries. The nano porous oxide electrode material has the characteristics of high specific capacity, good cyclic stability and excellent rate capability.
Description
Technical field
The invention belongs to technical field of lithium ion, relate to a kind of lithium ion battery nanoporous oxide electrode material.
Background technology
Along with the development of society, increasing portable type electronic product is used by people, also more and more higher to the requirement of flexible energy storage device; Simultaneously the developing rapidly of new energy technology such as solar energy, wind energy and tidal energy needs corresponding energy storage device to match; Because petroleum resources are day by day exhausted and tail gas pollution, the development of electric vehicle is particularly urgent, the high performance energy storage device of same needs.Therefore, development has high-energy-density, high power density, high security and free of contamination secondary cell has become one of most important research topic.
The secondary cell be widely used at present mainly contains lead-acid battery, nickel-cadmium cell, Ni-MH battery and lithium ion battery.The advantages such as wherein lithium ion battery has that open circuit voltage is high, energy density is large, have extended cycle life, memory-less effect, pollution-free and self-discharge rate are little, develop very rapid, be widely used, not being only applicable to all kinds of portable electric appts, is also the ideal chose of electric car power supply and new forms of energy energy storage.Lithium ion battery have passed through the development of recent two decades, and performance is constantly promoted, and updating along with battery material and processing technology, and production cost reduces gradually, slowly starts dominate in secondary cell market.Simultaneously also more and more higher to its requirement, higher specific energy, longer cycle life, lower production cost are the research directions of lithium ion battery from now on, develop the heavy-duty battery material and technology with independent intellectual property right, socioeconomic development can not only be promoted, have more important strategic importance.
Lithium ion battery negative material is the key components of lithium ion battery, the desirable following condition of negative material general satisfaction: 1, have as far as possible low oxidation-reduction potential during embedding lithium, make battery have higher output voltage; 2, lithium ion is as much as possible enters in body of material, prevents Li dendrite from being formed, and obtains high specific capacity; 3, material structure is through the embedding of lithium ion with keep stable after deviating from, and makes battery have reliable cycle performance; 4, material will have good electronic conductivity and ion diffusivity, thus reduces polarization adaptation high current charge-discharge; 5, Lithium-ion embeding amount is little on electrode potential impact, makes battery have stable operating voltage; 6, good with liquid electrolyte forming property solid electrolyte interface film (SEI); 7, safety and environmental protection, aboundresources, cheap, is convenient to a large amount of production.The ion cathode material lithium of current primary study mainly contains material with carbon element, alloy type material, metal oxide materials and other negative materials.How the research of anticathode material mainly to increase energy density, improve cyclical stability and improve several aspect such as coulombic efficiency first.
Traditional lithium ion battery negative material is graphite and material with carbon element, because its theoretical capacity is low, cannot meet the demand of industry development.The theoretical capacity of the lithium ion battery negative material of oxide-base is high, and cheap advantage is that other lithium ion battery negative materials cannot match in excellence or beauty.Therefore developing the new lithium ion battery negative material based on oxide of a class is meet the development trend of current industry and requirement.
Summary of the invention
Technical problem to be solved by this invention is, overcome the shortcoming of prior art, a kind of lithium ion battery nanoporous oxide electrode material is provided, product of the present invention is used for nanoporous oxide and the composite material thereof of power lithium-ion battery and energy storage lithium ion battery, the feature of such material is height ratio capacity, good cycling stability, and high rate performance is excellent.
In order to solve above technical problem, the invention provides a kind of lithium ion battery nanoporous oxide electrode material, comprising C framework and strengthening nanoporous SnO
2composite material, its preparation method is specific as follows:
(1) ethylene glycol, ethanol and methyl alcohol are mixed with the ratio of 5:4:1 or 5:3:2 or 4:4:2, then add tin salt, make tin salt precursor aqueous solution;
(2) oxalic acid is joined in the tin salt precursor aqueous solution of step (1) gained, be uniformly mixed, obtain stannous oxalate presoma;
(3) the stannous oxalate presoma obtained in step (2) is calcined in atmosphere, obtain nanoporous SnO
2material;
(4) the nanoporous SnO will obtained in step (3)
2material mixes with glucose solution, and reacts 3-6 hour under 45-85 DEG C of water bath condition, obtains C framework and strengthens nanoporous SnO
2presoma;
(5) C framework in step (4) is strengthened nanoporous SnO
2presoma calcine under protective atmosphere, obtain C framework and strengthen nanoporous SnO
2composite material.
The technical scheme that the present invention limits further is:
Wherein, the tin salt in step (2) is stannous chloride or stannous sulfate; Protective gas in step (2) is the one of nitrogen, argon gas or helium.
The invention has the beneficial effects as follows:
The loose structure aperture of product of the present invention is applicable to, through hole, intercommunicating pore ratio are high, improves the stability of this product and functional; Avoid that aperture is excessive causes material monolithic structural instability; Prevent aperture too small simultaneously, reduce the functional characteristic of material, thus the effect that good buffer volumes expands cannot be played, and impact subsequently with the recombination process of other constituent elements.
Product of the present invention selects unsetting carbon as the second constituent element, and the second constituent element nanoporous oxide composite material can play the effect of learning from other's strong points to offset one's weaknesses, and its function concentrates on rock-steady structure and strengthens conductivity two aspect; Meanwhile, the structure of unsetting carbon and content rationally, greatly improve the overall performance of nanoporous oxide composite material.
Embodiment
Embodiment 1
The present embodiment provides a kind of lithium ion battery nanoporous oxide electrode material, comprises C framework and strengthens nanoporous SnO
2composite material, its preparation method is specific as follows:
(1) ethylene glycol, ethanol and methyl alcohol are mixed with the ratio of 5:4:1, then add tin salt, make tin salt precursor aqueous solution;
(2) oxalic acid is joined in the tin salt precursor aqueous solution of step (1) gained, be uniformly mixed, obtain stannous oxalate presoma;
(3) the stannous oxalate presoma obtained in step (2) is calcined in atmosphere, obtain nanoporous SnO
2material;
(4) the nanoporous SnO will obtained in step (3)
2material mixes with glucose solution, and reacts 6 hours under 45 DEG C of water bath condition, obtains C framework and strengthens nanoporous SnO
2presoma;
(5) C framework in step (4) is strengthened nanoporous SnO
2presoma calcine under protective atmosphere, obtain C framework and strengthen nanoporous SnO
2composite material.
Wherein, the tin salt in step (2) is stannous chloride; Protective gas in step (2) is nitrogen.
Embodiment 2
The present embodiment provides a kind of lithium ion battery nanoporous oxide electrode material, comprises C framework and strengthens nanoporous SnO
2composite material, its preparation method is specific as follows:
(1) ethylene glycol, ethanol and methyl alcohol are mixed with the ratio of 5:3:2, then add tin salt, make tin salt precursor aqueous solution;
(2) oxalic acid is joined in the tin salt precursor aqueous solution of step (1) gained, be uniformly mixed, obtain stannous oxalate presoma;
(3) the stannous oxalate presoma obtained in step (2) is calcined in atmosphere, obtain nanoporous SnO
2material;
(4) the nanoporous SnO will obtained in step (3)
2material mixes with glucose solution, and reacts 3 hours under 85 DEG C of water bath condition, obtains C framework and strengthens nanoporous SnO
2presoma;
(5) C framework in step (4) is strengthened nanoporous SnO
2presoma calcine under protective atmosphere, obtain C framework and strengthen nanoporous SnO
2composite material.
Wherein, the tin salt in step (2) is stannous sulfate; Protective gas in step (2) is argon gas.
Embodiment 3
The present embodiment provides a kind of lithium ion battery nanoporous oxide electrode material, comprises C framework and strengthens nanoporous SnO
2composite material, its preparation method is specific as follows:
(1) ethylene glycol, ethanol and methyl alcohol are mixed with the ratio of 4:4:2, then add tin salt, make tin salt precursor aqueous solution;
(2) oxalic acid is joined in the tin salt precursor aqueous solution of step (1) gained, be uniformly mixed, obtain stannous oxalate presoma;
(3) the stannous oxalate presoma obtained in step (2) is calcined in atmosphere, obtain nanoporous SnO
2material;
(4) the nanoporous SnO will obtained in step (3)
2material mixes with glucose solution, and reacts 4.5 hours under 65 DEG C of water bath condition, obtains C framework and strengthens nanoporous SnO
2presoma;
(5) C framework in step (4) is strengthened nanoporous SnO
2presoma calcine under protective atmosphere, obtain C framework and strengthen nanoporous SnO
2composite material.
Wherein, the tin salt in step (2) is stannous chloride; Protective gas in step (2) is helium.
Above embodiment is only and technological thought of the present invention is described, can not limit protection scope of the present invention with this, and every technological thought proposed according to the present invention, any change that technical scheme basis is done, all falls within scope.
Claims (3)
1. a lithium ion battery nanoporous oxide electrode material, is characterized in that, comprises C framework and strengthens nanoporous SnO
2composite material, its preparation method is specific as follows:
(1) ethylene glycol, ethanol and methyl alcohol are mixed with the ratio of 5:4:1 or 5:3:2 or 4:4:2, then add tin salt, make tin salt precursor aqueous solution;
(2) oxalic acid is joined in the tin salt precursor aqueous solution of step (1) gained, be uniformly mixed, obtain stannous oxalate presoma;
(3) the stannous oxalate presoma obtained in step (2) is calcined in atmosphere, obtain nanoporous SnO
2material;
(4) the nanoporous SnO will obtained in step (3)
2material mixes with glucose solution, and reacts 3-6 hour under 45-85 DEG C of water bath condition, obtains C framework and strengthens nanoporous SnO
2presoma;
(5) C framework in step (4) is strengthened nanoporous SnO
2presoma calcine under protective atmosphere, obtain C framework and strengthen nanoporous SnO
2composite material.
2. lithium ion battery nanoporous oxide electrode material according to claim 1, is characterized in that, the tin salt in described step (2) is stannous chloride or stannous sulfate.
3. lithium ion battery nanoporous oxide electrode material according to claim 1, is characterized in that, the protective gas in described step (2) is the one of nitrogen, argon gas or helium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410706557.7A CN104409704A (en) | 2014-11-26 | 2014-11-26 | Nano porous oxide electrode material for lithium ion battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410706557.7A CN104409704A (en) | 2014-11-26 | 2014-11-26 | Nano porous oxide electrode material for lithium ion battery |
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| Publication Number | Publication Date |
|---|---|
| CN104409704A true CN104409704A (en) | 2015-03-11 |
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| CN201410706557.7A Pending CN104409704A (en) | 2014-11-26 | 2014-11-26 | Nano porous oxide electrode material for lithium ion battery |
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| CN (1) | CN104409704A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111540891A (en) * | 2020-05-11 | 2020-08-14 | 中国科学院重庆绿色智能技术研究院 | Preparation method of low-cost high-performance tin-carbon lithium battery negative electrode material |
| CN114094062A (en) * | 2021-10-09 | 2022-02-25 | 温州大学 | Preparation method and application of oxalic acid assisted synthesis of tin dioxide nanoparticle composite graphene high-performance lithium storage and sodium storage material |
| CN115057464A (en) * | 2022-03-25 | 2022-09-16 | 华南理工大学 | Three-dimensional porous ZnO/SnO 2 Composite material, preparation method thereof and application thereof in nickel-zinc battery |
-
2014
- 2014-11-26 CN CN201410706557.7A patent/CN104409704A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111540891A (en) * | 2020-05-11 | 2020-08-14 | 中国科学院重庆绿色智能技术研究院 | Preparation method of low-cost high-performance tin-carbon lithium battery negative electrode material |
| CN114094062A (en) * | 2021-10-09 | 2022-02-25 | 温州大学 | Preparation method and application of oxalic acid assisted synthesis of tin dioxide nanoparticle composite graphene high-performance lithium storage and sodium storage material |
| CN114094062B (en) * | 2021-10-09 | 2024-04-05 | 温州大学 | Preparation method and application of high-performance lithium and sodium storage material for synthesizing tin dioxide nanoparticle composite graphene with assistance of oxalic acid |
| CN115057464A (en) * | 2022-03-25 | 2022-09-16 | 华南理工大学 | Three-dimensional porous ZnO/SnO 2 Composite material, preparation method thereof and application thereof in nickel-zinc battery |
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Application publication date: 20150311 |
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| WD01 | Invention patent application deemed withdrawn after publication |