CN101289176A - Sn4P3 cathode material for lithium ion battery and method for preparing same - Google Patents
Sn4P3 cathode material for lithium ion battery and method for preparing same Download PDFInfo
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- CN101289176A CN101289176A CNA2008100378541A CN200810037854A CN101289176A CN 101289176 A CN101289176 A CN 101289176A CN A2008100378541 A CNA2008100378541 A CN A2008100378541A CN 200810037854 A CN200810037854 A CN 200810037854A CN 101289176 A CN101289176 A CN 101289176A
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- ion battery
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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 belongs to the technical field of electrochemistry, in particular to a tetra-tin triphosphate cathode material used in lithium-ion batteries and a preparation method thereof. The cathode material is tetra-tin triphosphate (Sn4P3) membrane prepared by a reactive pulsed laser deposition method. The electrode prepared by the membrane has good reversibility for charging and discharging circulation and the reversible specific capacity is about 552mAh/g. The material of tetra-tin triphosphate (Sn4P3) electrode has the advantages of good chemical stability, high specific capacity and easy preparation method, and is suitable for lithium-ion batteries.
Description
Technical field
The invention belongs to technical field of electrochemistry, be specifically related to a class and be used for cathode material of lithium ion battery and preparation method thereof.
Background technology
Lithium ion battery is the vital power supply of notebook computer, photographic camera, mobile phone and other Communication Equipment, and might be used for automobile and other vehicles as green energy resource.At present commercially available lithium ion battery is mainly by the carbon-based cathode material, and liquid organic electrolyte is formed with the transition metal oxide cathode material that contains lithium.In order further to improve the performance of lithium ion battery, people study, seek than the better novel cathode material of carbon-based cathode material property.In addition, along with the miniaturization of microelectronic device, the lithium ion battery that an urgent demand exploitation is complementary therewith, for example film lithium ion battery etc.
Summary of the invention
The objective of the invention is to propose well behaved cathode material for lithium ion battery of a class and preparation method thereof.
The cathode material for lithium ion battery that the present invention proposes is a kind of Sn 4 P 3 (Sn with rhombohedral structure
4P
3) material.Show that after deliberation this type of material has good electrochemical, can be used as the cathode material of high performance lithium ion battery.There is not Sn 4 P 3 (Sn so far about filming
4P
3) as the report of cathode material for lithium ion battery.The Sn 4 P 3 (Sn that the present invention proposes as cathode material for lithium ion battery
4P
3) be form of film, the thickness of its thin-film material is 0.2-1 μ m.
The invention allows for the preparation method of aforementioned cathode material for lithium ion battery, specifically be described below:
Sn 4 P 3 (Sn as cathode material for lithium ion battery
4P
3) film can adopt the preparation of reactive pulsed laser deposition, concrete steps are: compressing tablet after phosphorus powder and the glass putty ground and mixed is made the used target of pulsed laser deposition, wherein the amount of substance of phosphorus powder be glass putty 1-2 doubly, the 1064nm fundamental frequency that is produced by neodymium-doped yttrium pyralspite laser apparatus obtains the 355nm pulse laser behind frequency tripling, laser beam is through inciding after the lens focus on the above-mentioned target, the distance of target and substrate is 25-50mm, and deposition obtains Sn 4 P 3 (Sn on substrate in argon gas atmosphere
4P
3) film, substrate can adopt stainless steel substrates, platinized platinum or gold-plated monocrystalline silicon piece, and substrate temperature is 300-600 ℃.The depositing of thin film time is required to determine by film thickness, was generally 0.2-1.0 hour.Film thickness can be measured by scanning electron microscope, and the weight of film is made difference according to substrate weight before and after the electronic balance weighing experiment and obtained.
Among the present invention, Sn 4 P 3 (Sn
4P
3) crystalline structure of film determined by x-ray diffractometer (Bruker D8 Advance).X-ray diffracting spectrum shows the Sn 4 P 3 (Sn that is made by pulse laser reactive deposition method
4P
3) film is the rhombohedral structure of polycrystalline.Measure by scanning electron microscope (Philips XL30) and to show, the Sn 4 P 3 (Sn that makes by pulse laser reactive deposition method
4P
3) film surface is smooth and with some tiny slight cracks.
Among the present invention, Sn 4 P 3 (Sn
4P
3) film can directly make the lithium ion cell film electrode.
Among the present invention, Sn 4 P 3 (Sn
4P
3) electrochemical property test of membrane electrode adopts the battery system of being made up of three electrodes, wherein, Sn 4 P 3 (Sn
4P
3) film is as working electrode, the high purity lithium sheet is used separately as and is counter electrode and reference electrode.Electrolytic solution is 1M LiPF
6+ EC+DMC (V/V=1/1).Battery is assemblied in the loft drier of applying argon gas and carries out.The experiment that discharges and recharges of battery is carried out on blue electricity (Land) battery test system.
Among the present invention, the Sn 4 P 3 (Sn that on substrates such as stainless steel substrates, makes by the pulse laser reactive deposition processes
4P
3) membrane electrode all has charge-discharge performance, the discharge platform of exoelectrical reaction for the first time appear at 0.6 and 0.3V (with respect to Li
+/ Li), for the second time discharge process with the first time discharge process compare, irreversible loading capacity loss is 18.4%, at voltage range 0-3V and current density 5 μ A/cm
2The time, Sn 4 P 3 (Sn
4P
3) membrane electrode specific storage preceding 20 times the circulation in remain on 552mAh/g.
Above-mentioned performance shows, Sn 4 P 3 (Sn
4P
3) be the novel cathode material of a class, can be applicable to lithium ion battery.
Description of drawings
Fig. 1 is Sn 4 P 3 (Sn
4P
3) XRD spectra of film.The diffraction peak of stainless steel substrate represented in asterisk among the figure, and in the square brackets is the crystal face indexes of diffraction peak.
Embodiment
Embodiment
Adopt reactive pulsed laser deposition to prepare Sn 4 P 3 (Sn
4P
3) film, color is a black.During preparation, in the hybrid target, the amount of substance of phosphorus powder is 2 times of glass putty, adopt stainless steel substrates as substrate, the distance of substrate and target is 40mm, substrate temperature is 400 ℃, and the fundamental frequency that is produced by the Nd:YAG laser apparatus produces the 355nm pulse laser through frequency tripling, on the hybrid target of laser beam through inciding antimony powder and selenium powder after the lens focus.Energy density is 2Jcm
-2, depositing time is 0.5 hour.
X-ray diffraction is measured and is shown that sedimentary film is the Sn 4 P 3 (Sn of polycrystalline rhombohedral structure
4P
3) (accompanying drawing 1).Show the Sn 4 P 3 (Sn that makes by the pulse laser reactive deposition by stereoscan photograph mensuration
4P
3) film surface is smooth and with some tiny slight cracks.
To the Sn 4 P 3 (Sn on the stainless steel substrate
4P
3) the electrochemical property test result of membrane electrode is as follows:
Sn 4 P 3 (Sn4P3) membrane electrode can be at 5 μ A/cm
2Carry out charge and discharge cycles under the charge-discharge velocity.In voltage range 0-3V, for the first time loading capacity can reach 1100mAh/g, and reversible capacity is 552mAh/g, circulates that capacity tends towards stability after 20 times, and 50 capacity that circulate remain on 503mAh/g.
Therefore, sedimentary Sn 4 P 3 (Sn on stainless steel substrates
4P
3) film can be used as the cathode material of lithium ion battery.
Claims (2)
1, a kind of cathode material for lithium ion battery is characterized in that the Sn 4 P 3 material that has rhombohedral structure for a kind of, and such material is a form of film, and the thickness of film is 0.2-1 μ m.
2, a kind of preparation method of cathode material of lithium ion battery as claimed in claim 1, it is characterized in that the Sn 4 P 3 thin-film material adopts reactive pulsed laser deposition preparation, concrete steps are: compressing tablet after phosphorus powder and the glass putty ground and mixed is made the used target of pulsed laser deposition, wherein the amount of substance of phosphorus powder be glass putty 1-2 doubly, the 1064nm fundamental frequency that is produced by neodymium-doped yttrium pyralspite laser apparatus obtains the 355nm pulse laser behind frequency tripling, laser beam is through inciding after the lens focus on the above-mentioned target, the distance of target and substrate is 25-50mm, deposition obtains the Sn 4 P 3 film on substrate in argon gas atmosphere, substrate adopts stainless steel substrates, platinized platinum or gold-plated monocrystalline silicon piece, substrate temperature are 300-600 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100378541A CN101289176B (en) | 2008-05-22 | 2008-05-22 | Sn4P3 cathode material for lithium ion battery and method for preparing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100378541A CN101289176B (en) | 2008-05-22 | 2008-05-22 | Sn4P3 cathode material for lithium ion battery and method for preparing same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101289176A true CN101289176A (en) | 2008-10-22 |
| CN101289176B CN101289176B (en) | 2011-05-04 |
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ID=40033658
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|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015028922A (en) * | 2013-06-26 | 2015-02-12 | 国立大学法人鳥取大学 | Negative electrode for sodium ion secondary battery, method for manufacturing the same, and sodium ion secondary battery |
| CN110034283A (en) * | 2018-09-17 | 2019-07-19 | 南方科技大学 | Phosphorization tin composite material and preparation method and application |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3853624A (en) * | 1970-07-17 | 1974-12-10 | Westinghouse Electric Corp | High energy density iron-nickel battery |
| US4911996A (en) * | 1988-03-11 | 1990-03-27 | Eic Laboratories, Inc. | Electrochemical cell |
| CN100391035C (en) * | 2006-08-03 | 2008-05-28 | 复旦大学 | Thin film lithium battery using diselenid nickel thin film as cathode material and its preparation method |
| CN100395908C (en) * | 2006-08-03 | 2008-06-18 | 复旦大学 | Negative pole material for lithium battery and producing method thereof |
-
2008
- 2008-05-22 CN CN2008100378541A patent/CN101289176B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015028922A (en) * | 2013-06-26 | 2015-02-12 | 国立大学法人鳥取大学 | Negative electrode for sodium ion secondary battery, method for manufacturing the same, and sodium ion secondary battery |
| CN110034283A (en) * | 2018-09-17 | 2019-07-19 | 南方科技大学 | Phosphorization tin composite material and preparation method and application |
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| Publication number | Publication date |
|---|---|
| CN101289176B (en) | 2011-05-04 |
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Granted publication date: 20110504 Termination date: 20140522 |