CN101499529B - Indium phosphide cathode material for lithium ion battery and method for producing the same - Google Patents
Indium phosphide cathode material for lithium ion battery and method for producing the same Download PDFInfo
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- CN101499529B CN101499529B CN2009100466640A CN200910046664A CN101499529B CN 101499529 B CN101499529 B CN 101499529B CN 2009100466640 A CN2009100466640 A CN 2009100466640A CN 200910046664 A CN200910046664 A CN 200910046664A CN 101499529 B CN101499529 B CN 101499529B
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- indium phosphide
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/10—Energy storage using batteries
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Abstract
The invention belongs to the technical field of electrochemistry, and particularly relates to an indium phosphide cathode material of a lithium-ion battery and a preparation method thereof. The material has a film structure, and can be prepared in a reactive pulsed laser deposition method. The electrode made of the film has excellent reversibility of the charge-discharge cycle, and the reversible specific capacity of the electrode made of the indium phosphide (InP) film is about 620 mAh/g. After 30 cycles, the capacity of the electrode is still 460 mAh/g. The indium phosphide (InP) electrode material has the advantages of good chemical stability, high specific capacity, low charge-discharge platform polarization and simple preparation method, and is applicable to the lithium-ion battery.
Description
Technical field
The invention belongs to technical field of electrochemistry, be specifically related to a kind of indium phosphide cathode material that is used for lithium ion battery and preparation method thereof.
Background technology
Lithium ion battery is the vital power supply of notebook computer, 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 back negative 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 negative material of carbon back negative material performance.In addition, along with the miniaturization of microelectronic component, the lithium-ion film cell that an urgent demand exploitation is complementary therewith, for example film lithium ion hull cell etc.
Summary of the invention
The objective of the invention is to propose well behaved indium phosphide cathode material that is used for lithium ion battery of a class and preparation method thereof.
The indium phosphide cathode material that is used for lithium ion battery that the present invention proposes is a kind of indium phosphide (InP) thin-film material with face-centred cubic structure.Show that after deliberation this type of material has good electrochemical, can be used as the negative material of high performance lithium ion battery.So far not about the report of indium phosphide (InP) material as lithium ion battery negative material.
The indium phosphide that is used for lithium ion battery negative material (InP) that the present invention proposes is a form of film, and the thickness of its thin-film material is 0.2-1 μ m.
The preparation method of the indium phosphide cathode material that is used for lithium ion battery that the present invention proposes specifically is described below:
Indium phosphide (InP) film as lithium ion battery negative material can adopt reactive pulsed laser deposition preparation, concrete steps are: compressing tablet after indium powder and the red phosphorus powder ground and mixed is made the used target of pulsed laser deposition, wherein the amount of substance of red phosphorus powder be the indium powder 1-5 doubly, the 1064nm fundamental frequency that is produced by neodymium-doped yttrium pyralspite laser 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 indium phosphide (InP) film on substrate in argon gas atmosphere, substrate adopts stainless steel substrates, and substrate temperature is 400-600 ℃.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 ESEM, and the weight of film obtains according to substrate weight difference before and after the electronic balance weighing experiment.
Among the present invention, the crystal structure of indium phosphide (InP) film is determined by x-ray diffractometer (Bruker D8 Advance).X-ray diffracting spectrum shows that indium phosphide (InP) film that is made by pulse laser reactive deposition method is a face-centred cubic structure.Measured by ESEM (Philips XL30) and to show, indium phosphide (InP) film surface that is made by pulse laser reactive deposition method is smooth and with some tiny slight cracks.
Among the present invention, indium phosphide (InP) film can directly be made the lithium ion cell film electrode.
Among the present invention, the electrochemical property test of indium phosphide (InP) membrane electrode adopts the hull cell system that is made up of three electrodes, and wherein, indium phosphide (InP) film is used as work electrode, and the high purity lithium sheet is used separately as to electrode and reference electrode.Electrolyte is 1M LiPF
6+ EC+DMC (V/V=1/1).Hull cell is assemblied in the drying box of applying argon gas and carries out.The experiment that discharges and recharges of hull cell is carried out on blue electricity (Land) hull cell test macro.
Among the present invention, indium phosphide (InP) membrane electrode that is made on substrates such as stainless steel substrates by the pulse laser reactive deposition processes has charge-discharge performance, and the platform of exoelectrical reaction appears at 0.5V (with respect to Li
+/ Li), for the second time discharge process with the first time discharge process compare, irreversible discharge capacity loss is 20%, at voltage range 0.01～3.0V and current density 10 μ A/cm
2The time, the specific capacity of indium phosphide (InP) membrane electrode remains on 460-620mAh/g in preceding 30 circulations.
Above-mentioned performance shows that indium phosphide (InP) is the novel negative material of a class, can be applicable to lithium ion battery.
Description of drawings
The XRD spectra of Fig. 1 embodiment 1 indium phosphide (InP) film, the diffraction maximum of stainless steel substrate represented in asterisk among the figure, in the bracket is the crystal face indexes of diffraction maximum.
Fig. 2 is the charging and discharging curve of embodiment 1 indium phosphide (InP) film.
Embodiment
Further specify the present invention below by embodiment.
Embodiment:
Adopt reactive pulsed laser deposition to prepare indium phosphide (InP) film, color is a grey black.During preparation, compressing tablet after indium powder and the red phosphorus powder ground and mixed is made the used target of pulsed laser deposition, wherein the amount of substance of red phosphorus powder is 3 times of indium powder, the 1064nm fundamental frequency that is produced by neodymium-doped yttrium pyralspite laser 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 40mm, and deposition obtains indium phosphide (InP) film on substrate in argon gas atmosphere.Energy density is 2Jcm
-2, sedimentation time is 1 hour.
X-ray diffraction is measured and is shown that the film of deposition is the indium phosphide (InP) (accompanying drawing 1) of face-centred cubic structure.Show that by stereoscan photograph mensuration indium phosphide (InP) film surface that is made by the pulse laser reactive deposition is smooth.
Electrochemical property test result to the indium phosphide on the stainless steel substrate (InP) membrane electrode is as follows:
Indium phosphide (InP) membrane electrode can be at 10 μ A/cm
2Carry out charge and discharge cycles under the charge-discharge velocity.In voltage range 3.0-4.3V, for the first time discharge capacity can reach 780mAh/g, and reversible capacity is about 620mAh/g, and circulating, capacity remains on 460mAh/g after 30 times.Charging and discharging curve is seen accompanying drawing 2.
Therefore, the indium phosphide that deposits on stainless steel substrates (InP) film can be used as the negative material of lithium-ion film cell.
Claims (2)
1. the indium phosphide cathode material of a lithium ion battery is characterized in that the indium phosphide thin-film material that has face-centred cubic structure for a kind of, and the thickness of film is 0.2-1 μ m.
2. the preparation method of the indium phosphide cathode material of a lithium ion battery as claimed in claim 1, it is characterized in that the indium phosphide thin-film material adopts reactive pulsed laser deposition preparation, concrete steps are: compressing tablet after indium powder and the red phosphorus powder ground and mixed is made target, the amount of substance of red phosphorus powder is 3 times of indium powder, the 1064nm fundamental frequency that is produced by neodymium-doped yttrium pyralspite laser 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 40mm, and deposition obtains the indium phosphide film on substrate in argon gas atmosphere, and substrate adopts stainless steel substrates, and substrate temperature is 400-600 ° ℃, and sedimentation time is 0.2-1.0 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100466640A CN101499529B (en) | 2009-02-26 | 2009-02-26 | Indium phosphide cathode material for lithium ion battery and method for producing the same |
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| CN2009100466640A CN101499529B (en) | 2009-02-26 | 2009-02-26 | Indium phosphide cathode material for lithium ion battery and method for producing the same |
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| CN101499529A CN101499529A (en) | 2009-08-05 |
| CN101499529B true CN101499529B (en) | 2010-09-15 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104022285A (en) * | 2014-06-24 | 2014-09-03 | 武汉理工大学 | SnO2@polymer coaxial heterogeneous nano rod array structural material as well as preparation method and application thereof |
| CN106532000A (en) * | 2016-11-30 | 2017-03-22 | 陕西科技大学 | Graphene/indium phosphide composite electrode material and preparation method thereof |
| CN106450233A (en) * | 2016-11-30 | 2017-02-22 | 陕西科技大学 | Reduced graphene oxide and indium phosphide composite nanomaterial and preparation method thereof |
| CN106601906B (en) * | 2016-12-02 | 2019-08-20 | 北京有色金属研究总院 | The preparation method and application of InP resistance-change memory material |
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