CN103647046B - Containing the preparation method of magnesia tin negative pole material - Google Patents
Containing the preparation method of magnesia tin negative pole material Download PDFInfo
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- CN103647046B CN103647046B CN201310568881.2A CN201310568881A CN103647046B CN 103647046 B CN103647046 B CN 103647046B CN 201310568881 A CN201310568881 A CN 201310568881A CN 103647046 B CN103647046 B CN 103647046B
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- negative pole
- mixture
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- pole 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
- H01M4/48—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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention provides a kind of preparation method containing magnesia tin negative pole material, belong to chemical cell preparation field.In method provided by the invention, by SnCl
45H
2o, MgCl
2, citric acid mixes in proportion, then by stirring, drying, sintering, obtain described negative material.Preparation method provided by the invention is without the need to carrying out in an oxygen-free atmosphere, and preparation technology is simple, reduces preparation cost; Containing magnesium oxide in the tin oxide negative material prepared, magnesium oxide has the extremely strong wettability to fuse salt, can effectively fused electrolyte be adsorbed on around oneself, ensure the performance of battery, and have significant impact to the ability that battery bears severe mechanical environment.
Description
Technical field
The invention belongs to chemical cell preparation field, particularly relate to a kind of preparation method containing magnesia tin negative pole material.
Background technology
In recent years, along with oil, gas extraction with a large amount of to use and the development of automobile industry, the non-renewable of the resources such as oil is paid close attention to day by day widely.People pay attention to increasingly to problems such as urban air-quality and the crises of earth petroleum resources, and protection of the environment, the cry of energy savings is increasingly surging, impels people to pay much attention to the development and utilization of new forms of energy.Lithium ion battery is owing to having long cycle life and high energy density and being considered to hybrid-electric car and the very promising new forms of energy of portable electric appts.Graphite as current business-like lithium ion battery negative material, low price, Heat stability is good, environmental friendliness; But because the intercalation potential of graphite is lower, easily cause the decomposition of electrolyte and the precipitation of dendrite lithium, cause a series of safety problem.Therefore, basic solution is the oxidation-reduction pair that use has higher equilibrium potential for a pair, makes the precipitation of dendrite lithium be thermodynamically disadvantageous.
Native graphite is widely used as the negative material of lithium ion battery, but the compatibility of native graphite and electrolyte is poor, in embedding/de-lithium process, easily there is the stripping of graphite linings and cause cycle performance to decline, thus limiting the application of pure natural graphite in lithium ion battery.
Therefore development of new non-carbon system negative material has very important meaning.
Summary of the invention
Containing a preparation method for magnesia tin negative pole material, it is characterized in that comprising the following steps:
(1) by SnCl
45H
2o, MgCl
2, after citric acid mixes in proportion, be dissolved in deionized water, obtain solution A;
(2) solution A is carried out adding thermal agitation, until the mixture A of solution transition gel;
(3) by mixture 105-120 DEG C of oven dry, obtain mixture B;
(4) mixture B is sintered 4 ~ 6 hours at 400 DEG C ~ 500 DEG C, obtain described containing magnesia tin negative pole material;
Preferably, the SnCl described in step (1)
45H
2o, MgCl
2, citric acid is according to 1:(0.01 ~ 0.05): the mass ratio of (0.02 ~ 0.05) mixes.
Preferably, the thermal agitation that adds described in step (2) comprises following content: solution A is carried out magnetic agitation at 75 ~ 85 DEG C.
Beneficial effect of the present invention is as follows:
1. preparation method provided by the invention is without the need to carrying out in an oxygen-free atmosphere, and preparation technology is simple, reduces preparation cost.
2. preparation method provided by the invention, containing magnesium oxide in the tin oxide negative material prepared, magnesium oxide has the extremely strong wettability to fuse salt, can effectively fused electrolyte be adsorbed on around oneself, ensure the performance of battery, and have significant impact to the ability that battery bears severe mechanical environment.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made.These all belong to protection scope of the present invention.
embodiment 1
Containing a preparation method for magnesia tin negative pole material, comprise the following steps:
(1) by SnCl
45H
2o, MgCl
2, after citric acid mixes according to the mass ratio of 1:0.01:0.02, be dissolved in deionized water, obtain solution A;
(2) solution A is carried out magnetic agitation at 75 DEG C, until the mixture A of solution transition gel;
(3) by mixture 105-110 DEG C of oven dry, obtain mixture B;
(4) mixture B is sintered 6 hours at 400 DEG C, obtain described containing magnesia tin negative pole material.
embodiment 2
Containing a preparation method for magnesia tin negative pole material, comprise the following steps:
(1) by SnCl
45H
2o, MgCl
2, after citric acid mixes according to the mass ratio of 1:0.05:0.02, be dissolved in deionized water, obtain solution A;
(2) solution A is carried out magnetic agitation at 85 DEG C, until the mixture A of solution transition gel;
(3) by mixture 110-120 DEG C of oven dry, obtain mixture B;
(4) mixture B is sintered 4 hours at 500 DEG C, obtain described containing magnesia tin negative pole material.
embodiment 3
Containing a preparation method for magnesia tin negative pole material, comprise the following steps:
(1) by SnCl
45H
2o, MgCl
2, after citric acid mixes according to the mass ratio of 1:0.05:0.05, be dissolved in deionized water, obtain solution A;
(2) solution A is carried out magnetic agitation at 80 DEG C, until the mixture A of solution transition gel;
(3) by mixture 110-115 DEG C of oven dry, obtain mixture B;
(4) mixture B is sintered 5 hours at 400 DEG C ~ 450 DEG C, obtain described containing magnesia tin negative pole material.
Claims (1)
1., containing a preparation method for magnesia tin negative pole material, it is characterized in that comprising the following steps:
(1) by SnCl
45H
2o, MgCl
2, after citric acid mixes in proportion, be dissolved in deionized water, obtain solution A;
(2) solution A is carried out adding thermal agitation, until the mixture A of solution transition gel;
(3) by mixture A 105-120 DEG C of oven dry, obtain mixture B;
(4) mixture B is sintered 4 ~ 6 hours at 400 DEG C ~ 500 DEG C, obtain described containing magnesia tin negative pole material;
SnCl described in step (1)
45H
2o, MgCl
2, citric acid is according to 1:(0.01 ~ 0.05): the mass ratio of (0.02 ~ 0.05) mixes;
The thermal agitation that adds described in step (2) comprises following content: solution A is carried out magnetic agitation at 75 ~ 85 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310568881.2A CN103647046B (en) | 2013-11-15 | 2013-11-15 | Containing the preparation method of magnesia tin negative pole material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310568881.2A CN103647046B (en) | 2013-11-15 | 2013-11-15 | Containing the preparation method of magnesia tin negative pole material |
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| Publication Number | Publication Date |
|---|---|
| CN103647046A CN103647046A (en) | 2014-03-19 |
| CN103647046B true CN103647046B (en) | 2016-02-17 |
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| CN201310568881.2A Expired - Fee Related CN103647046B (en) | 2013-11-15 | 2013-11-15 | Containing the preparation method of magnesia tin negative pole material |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208638A (en) * | 2011-04-26 | 2011-10-05 | 浙江大学 | High-capacity lithium ion battery cathode composite material and preparation method thereof |
| CN102637862A (en) * | 2009-01-07 | 2012-08-15 | 清华大学 | Preparation method of lithium ion battery cathode material |
| CN103346297A (en) * | 2013-05-31 | 2013-10-09 | 青岛科技大学 | Preparation method for carbon coated composite metal oxide electrode material |
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2013
- 2013-11-15 CN CN201310568881.2A patent/CN103647046B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102637862A (en) * | 2009-01-07 | 2012-08-15 | 清华大学 | Preparation method of lithium ion battery cathode material |
| CN102208638A (en) * | 2011-04-26 | 2011-10-05 | 浙江大学 | High-capacity lithium ion battery cathode composite material and preparation method thereof |
| CN103346297A (en) * | 2013-05-31 | 2013-10-09 | 青岛科技大学 | Preparation method for carbon coated composite metal oxide electrode material |
Non-Patent Citations (1)
| Title |
|---|
| "Synthesis of SnO2/Mg2SnO4 nanoparticles and their electrochemical performance for use in Li-ion battery electrodes";Ting Xiao等;《Electrochimica Acta》;20081108;第54卷(第8期);第2396～2401页 * |
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| CN103647046A (en) | 2014-03-19 |
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Granted publication date: 20160217 Termination date: 20191115 |