CN101692490A - Preparation method for copper-tin-antimony ternary alloy cathode material of lithium ion battery - Google Patents
Preparation method for copper-tin-antimony ternary alloy cathode material of lithium ion battery Download PDFInfo
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- CN101692490A CN101692490A CN200910196920A CN200910196920A CN101692490A CN 101692490 A CN101692490 A CN 101692490A CN 200910196920 A CN200910196920 A CN 200910196920A CN 200910196920 A CN200910196920 A CN 200910196920A CN 101692490 A CN101692490 A CN 101692490A
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- antimony
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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 relates to a preparation method for a copper-tin-antimony ternary alloy cathode material of a lithium ion battery. The preparation method comprises the following steps of: mixing metal copper, tin and antimony in a molar ratio of 6:5:5; adding a ball mill control agent; and fully carrying out ball milling under the protection of inert gases to obtain the copper-tin-antimony Cu6Sn5Sb5 ternary alloy cathode material. The preparation method has simple process and low cost, and the prepared copper-tin-antimony Cu6Sn5Sb5 ternary alloy cathode material has high lithium storage capacity and good cycle performance.
Description
Technical field
The invention belongs to the lithium ion battery negative material technical field, particularly relate to a kind of preparation method of copper-tin-antimony ternary alloy cathode.
Background technology
Lithium ion battery makes it to have showed application prospect from portable electric appts to many-sides such as electric automobile because of having characteristics such as high voltage, big capacity, long-life and security performance are good.One of key of exploitation lithium ion battery is to seek suitable electrode material, makes battery have sufficiently high lithium embedded quantity and takes off the embedding invertibity with good lithium, with the high voltage that guarantees battery, big capacity and long-life requirement.Graphite is applied in commercial Li-ion batteries because of having higher chemical property, but the theoretical specific capacity of graphite is lower, has only 372mAh/g, and its density is also smaller, in addition, reach 0V or when lower, have lithium to deposit out on the graphite electrode when discharging and recharging current potential, have potential safety hazard.So research and development specific discharge capacity and volume and capacity ratio all than negative material higher, that security performance is good, are lithium ion battery technical development, the particularly inevitable requirement of novel lithium-ion power battery development.
Compare with traditional graphite cathode material, kamash alloy storage lithium material has high-quality specific capacity and volume and capacity ratio, safe and reliable, advantage such as resource is extensive, cost of material is cheap, makes it have development potentiality as lithium dynamical battery negative material of new generation aspect.
In recent years, people mainly concentrate on the bianry alloy the research of this class material, as Sn-Cu alloy, Sn-Sb alloy, Sn-Ni alloy etc., and very few to the research of tinbase ternary alloy three-partalloy.Because the ternary alloy three-partalloy system has a plurality of activity/activity and activity/nonactive system, the variation of volume and the reunion of prevention active component during the padded coaming doff lithium more effectively on this structural theory, thereby the storage lithium performance of raising tin-based material.The present invention adopts simple method to prepare nanometer to micron order copper tin antimony Cu
6Sn
5Sb
5The ternary alloy three-partalloy composite negative pole material has advantages such as high power capacity, good cycle, has crucial meaning to promoting the practical application of tin base alloy anode material in lithium ion battery.
Summary of the invention
Technical problem to be solved by this invention provides a kind of preparation method of copper-tin-antimony ternary alloy cathode material of lithium ion battery, and preparation technology is simple, and cost is low, the Cu that obtains
6Sn
5Sb
5Ternary alloy anode material storage lithium capacity height, good cycle.
The invention provides a kind of preparation method of copper-tin-antimony ternary alloy cathode material of lithium ion battery; this method comprises the steps: to take by weighing metallic copper, metallic tin and metallic antimony and puts into ball mill by 6: 5: 5 mixed in molar ratio after evenly; add the ball milling controlling agent simultaneously; charge into inert gas as protection gas; behind the ball milling 48～72 hours, promptly get Cu
6Sn
5Sb
5Ternary alloy anode material.
Described ball milling controlling agent is a n-hexane, and n-hexane and copper mol ratio are 3: 2.
Described inert gas is nitrogen, argon gas, hydrogen or their mist.
Beneficial effect
The invention provides a kind of preparation method of copper-tin-antimony ternary alloy cathode material of lithium ion battery, preparation technology is simple for this method, and cost is low, the copper tin antimony Cu for preparing
6Sn
5Sb
5Ternary alloy anode material storage lithium capacity height, good cycle.
Description of drawings
Fig. 1 is the TEM figure of the copper-tin-antimony ternary alloy cathode material of embodiment preparation.
The circulation volume curve in first three ten week of the copper-tin-antimony ternary alloy cathode material that Fig. 2 synthesizes for embodiment.Discharging current is 50mA/g, and the charging/discharging voltage scope is that 1.5V is to 0V (vs.Li)
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiment
Take by weighing 3.92g Cu, 5.93g Sn and 6.09g Sb; after mixing; put into planetary ball mill; add the 12ml n-hexane simultaneously as the ball milling controlling agent; charge into high-purity argon gas as protection gas; fully ball milling is 48 hours, and obtaining particle size is the copper-tin-antimony ternary alloy composite material of 2-6 micron.
Synthetic material and acetylene black, polytetrafluoroethylene are mixed by about 8: 1: 1 mass ratio, be pressed into the film that thickness is about 1mm with the press mold machine, place baking oven in 120 ℃ of fully oven dry, the intercepting surface area is 1cm
2Circular membrane, be compressed on the stainless (steel) wire, make the research electrode.To study electrode and place the experimental simulation cell apparatus, and add electrolyte, be to electrode with lithium metal, and being assemblied in the glove box that is full of argon gas of simulated battery carried out.Charging and discharging currents is 50mA/g, and the charging/discharging voltage scope is that 1.5V is to 0V (vs.Li).In first all cyclic processes, discharge capacity is 676mAh/g, and reversible charging capacity is 564mAh/g, and circulating, reversible capacity is 442mAh/g after 30 times.
Claims (3)
1. the preparation method of a copper-tin-antimony ternary alloy cathode material of lithium ion battery; comprise the steps: to take by weighing metallic copper, metallic tin and metallic antimony and put into ball mill after evenly by 6: 5: 5 mixed in molar ratio; add the ball milling controlling agent simultaneously; charge into inert gas as protection gas; behind the ball milling 48～72 hours, promptly get Cu
6Sn
5Sb
5Ternary alloy anode material.
2. the preparation method of a kind of copper-tin-antimony ternary alloy cathode material of lithium ion battery according to claim 1 is characterized in that, described ball milling controlling agent is a n-hexane.
3. the preparation method of a kind of copper-tin-antimony ternary alloy cathode material of lithium ion battery according to claim 1 is characterized in that, described inert gas is nitrogen, argon gas, hydrogen or their mist.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910196920A CN101692490A (en) | 2009-10-09 | 2009-10-09 | Preparation method for copper-tin-antimony ternary alloy cathode material of lithium ion battery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910196920A CN101692490A (en) | 2009-10-09 | 2009-10-09 | Preparation method for copper-tin-antimony ternary alloy cathode material of lithium ion battery |
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| CN101692490A true CN101692490A (en) | 2010-04-07 |
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| CN200910196920A Pending CN101692490A (en) | 2009-10-09 | 2009-10-09 | Preparation method for copper-tin-antimony ternary alloy cathode material of lithium ion battery |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914703A (en) * | 2010-06-29 | 2010-12-15 | 宁波职业技术学院 | Tin base alloy anode material of lithium ion battery and preparation method thereof |
| CN102127660A (en) * | 2011-02-28 | 2011-07-20 | 天津赫维科技有限公司 | Lithium aluminum alloy for secondary lithium battery and manufacturing method thereof |
| WO2015051761A1 (en) * | 2013-10-10 | 2015-04-16 | 中国科学院宁波材料技术与工程研究所 | Negative electrode active material of tin-based ternary alloy and preparation method therefor |
| CN109346712A (en) * | 2018-09-10 | 2019-02-15 | 澳洋集团有限公司 | A kind of preparation method of the copper and tin based alloy nanometer anode material of lithium battery |
| CN113809316A (en) * | 2021-09-17 | 2021-12-17 | 广东省国研科技研究中心有限公司 | Ternary alloy negative electrode active material and preparation method and application thereof |
-
2009
- 2009-10-09 CN CN200910196920A patent/CN101692490A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914703A (en) * | 2010-06-29 | 2010-12-15 | 宁波职业技术学院 | Tin base alloy anode material of lithium ion battery and preparation method thereof |
| CN102127660A (en) * | 2011-02-28 | 2011-07-20 | 天津赫维科技有限公司 | Lithium aluminum alloy for secondary lithium battery and manufacturing method thereof |
| WO2015051761A1 (en) * | 2013-10-10 | 2015-04-16 | 中国科学院宁波材料技术与工程研究所 | Negative electrode active material of tin-based ternary alloy and preparation method therefor |
| CN104577076A (en) * | 2013-10-10 | 2015-04-29 | 中国科学院宁波材料技术与工程研究所 | Tin-based ternary alloy negative active material and preparation method thereof |
| CN109346712A (en) * | 2018-09-10 | 2019-02-15 | 澳洋集团有限公司 | A kind of preparation method of the copper and tin based alloy nanometer anode material of lithium battery |
| CN113809316A (en) * | 2021-09-17 | 2021-12-17 | 广东省国研科技研究中心有限公司 | Ternary alloy negative electrode active material and preparation method and application thereof |
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Application publication date: 20100407 |