CN1843941A - Method for preparing anode material of lithium-iron disulphide battery - Google Patents
Method for preparing anode material of lithium-iron disulphide battery Download PDFInfo
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- CN1843941A CN1843941A CNA2006100118780A CN200610011878A CN1843941A CN 1843941 A CN1843941 A CN 1843941A CN A2006100118780 A CNA2006100118780 A CN A2006100118780A CN 200610011878 A CN200610011878 A CN 200610011878A CN 1843941 A CN1843941 A CN 1843941A
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Abstract
The invention relates to a method for preparing anode material of lithium-iron disulphide battery by using conductive carbon material, natrium thiosulfuricum, ferrous sulfate and elemental sulfur as raw material through low temperature hydrothermal reaction. The formulation of the anode material comprises, conductive carbon material 0.5-10%, natrium thiosulfuricum 40-70%, ferrous sulphate 40-70%, and elemental sulfur 1-10%.
Description
Technical field
The present invention relates to a kind of preparation method of anode material of lithium-iron disulphide battery, belong to new material technology field.
Background technology
Battery of lithium-iron disulphide is the disposable lithium-battery of high energy, light weight, environmental protection, and operating voltage 1.5V can exchange with alkaline Mn cell, ni-mh, NI-G, zinc-silver oxide cell and use, and its discharge platform is steady, storage time is long, safety performance is good.The theoretical capacity of this cell positive material pyrite is 890mAh/g, and the capacity of single AA (No. 5) battery is higher than 3000mAh, and when particularly using in the heavy loading occasion, its performance is 4～10 times of common batteries.Being mainly used at present in the electrical appliances such as digital camera, MP3, PDAs, handheld game machine, portable CD Player, palm PC, digital display instrument, medicine equipment, also is that the automatic heat regulator of use under the cold climate and the ideal of the used battery of other outdoor electronic installation are selected.So far, have only the U.S. Eveready company can such battery of scale operation in the world, its selling price be higher, and the price of domestic imported product is about 25 yuan every.Therefore, the domestic and international market demand growth has a high potential.
Comply with World Battery industry further to high energy, green, secure side trend to development.The technology of preparing of lithium/pyrite battery positive electrode material of the present invention adopts the raw and auxiliary material of cheapness, unique material processing method and simple and effective production technique, has reduced production cost significantly.
Chinese invention patent CN1624196 and CN1387265 disclose the preparation method of pyrite, but method is loaded down with trivial details, are not suitable for the preparation of lithium-iron disulfide positive electrode material.For high performance battery, its positive electrode material should have conductivity preferably.The present invention prepares the good anode material of lithium-iron disulphide battery of conductivity by simple formulation and material cheaply.Simple, the easily control, with low cost of this method.
Summary of the invention
The technology of preparing that the present invention is propose for the performance that improves battery of lithium-iron disulphide a kind of efficient, low-cost, be suitable for the anode material of lithium-iron disulphide battery of suitability for industrialized production.
A kind of method for preparing anode material of lithium-iron disulphide battery that the present invention proposes, it is characterized in that: described method is a raw material with conductive carbon material, Sulfothiorine, ferrous sulfate and elemental sulfur, by the low-temperature hydrothermal reaction, obtain the lithium-iron disulfide composite positive pole.
In above-mentioned preparation method, described conductive carbon material is one or several mixtures in carbon black, acetylene black and the graphite.
In above-mentioned preparation method, the mass percent of described positive electrode material is: the content of conductive carbon material is 0.5～10%, and the content of Sulfothiorine is 40～70%, and the content of ferrous sulfate is 40～70%, and the content of elemental sulfur is 1～10%.。
In above-mentioned preparation method, described low-temperature hydrothermal reaction is that conductive carbon material, Sulfothiorine, ferrous sulfate and elemental sulfur are mixed in proportion, and places water heating kettle, adds an amount of water, and the mass ratio of water and compound is 0.5～3.0.
In above-mentioned preparation method, the temperature of described hydro-thermal reaction is 90～200 ℃, and the reaction times is 10～48 hours.
In above-mentioned preparation method, described reaction product after filtering, water, dilute sulphuric acid, CS successively
2Wash.
Its core technology of method that the present invention proposes is to adopt simple formulation, when the hydrothermal method synthesizing ferrous disulfide, adds conductive carbon material, and original position is synthetic compound, makes material compound evenly, excellent property.The present invention by the low-temperature hydrothermal reaction, obtains the C/FeS of excellent property by being raw material with conductive carbon material, Sulfothiorine, ferrous sulfate and elemental sulfur
2Composite positive pole.This material has low cost, characteristics that performance is high.And this method preparation cost is low, technical process is simple, has very big using value.
Embodiment
Below in conjunction with embodiment technical scheme of the present invention is described further:
Embodiment one. and mix by 1% carbon black, 55% Sulfothiorine, 40% ferrous sulfate and 4% sulphur, place water heating kettle, add an amount of water, the mass ratio of water and compound is 1.0.Be heated to 200 ℃ and kept 48 hours.After the cooling, filter.Water, dilute sulphuric acid, CS successively at last
2Wash, obtain C/FeS
2Composite positive pole.
Embodiment two. and mix by 3% carbon black, 40% Sulfothiorine, 47% ferrous sulfate and 10% sulphur, place water heating kettle, add an amount of water, the mass ratio of water and compound is 0.5.Be heated to 90 ℃ and kept 24 hours.After the cooling, filter.Water, dilute sulphuric acid, CS successively at last
2Wash, obtain C/FeS
2Composite positive pole.
Embodiment three. and mix by 10% carbon black, 49% Sulfothiorine, 40% ferrous sulfate and 1% sulphur, place water heating kettle, add an amount of water, the mass ratio of water and compound is 2.0.Be heated to 150 ℃ and kept 10 hours.After the cooling, filter.Water, dilute sulphuric acid, CS successively at last
2Wash, obtain C/FeS
2Composite positive pole.
Embodiment four. and mix by 0.5% carbon black, 40% Sulfothiorine, 55% ferrous sulfate and 4.5% sulphur, place water heating kettle, add an amount of water, the mass ratio of water and compound is 3.0.Be heated to 120 ℃ and kept 30 hours.After the cooling, filter.Water, dilute sulphuric acid, CS successively at last
2Wash, obtain C/FeS
2Composite positive pole.
Claims (6)
1, a kind of method for preparing anode material of lithium-iron disulphide battery is characterized in that: described method is a raw material with conductive carbon material, Sulfothiorine, ferrous sulfate and elemental sulfur, by the low-temperature hydrothermal reaction, obtains the lithium-iron disulfide composite positive pole.
2, preparation method according to claim 1 is characterized in that: described conductive carbon material is one or several mixtures in carbon black, acetylene black and the graphite.
3, preparation method according to claim 1, it is characterized in that: the mass percent of described positive electrode material is: the content of conductive carbon material is 0.5～10%, the content of Sulfothiorine is 40～70%, and the content of ferrous sulfate is 40～70%, and the content of elemental sulfur is 1～10%.
4, preparation method according to claim 1, it is characterized in that: described low-temperature hydrothermal reaction is that conductive carbon material, Sulfothiorine, ferrous sulfate and elemental sulfur are mixed in proportion, place water heating kettle, add an amount of water, the mass ratio of described water and compound is 0.5～3.0.
5, according to claim 1 or 4 described preparation methods, it is characterized in that: the temperature of described hydro-thermal reaction is 90～200 ℃, and the reaction times is 10～48 hours.
6, preparation method according to claim 1 or 5 is characterized in that: described reaction product after filtering, water, dilute sulphuric acid, CS successively
2Wash.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100118780A CN100470895C (en) | 2006-05-12 | 2006-05-12 | Method for preparing anode material of lithium-iron disulphide battery |
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| CNB2006100118780A CN100470895C (en) | 2006-05-12 | 2006-05-12 | Method for preparing anode material of lithium-iron disulphide battery |
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| CN1843941A true CN1843941A (en) | 2006-10-11 |
| CN100470895C CN100470895C (en) | 2009-03-18 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7799311B2 (en) | 2007-09-28 | 2010-09-21 | Eveready Battery Company, Inc. | Processes for producing synthetic pyrite |
| CN102157736A (en) * | 2011-03-23 | 2011-08-17 | 中银（宁波）电池有限公司 | Ferrous disulfide/carbon composite cathode material of primary lithium battery and preparation method and application thereof |
| CN102249347A (en) * | 2010-05-18 | 2011-11-23 | 中国科学院兰州化学物理研究所 | Preparation method of iron disulfide microspheres |
| CN102509803A (en) * | 2011-11-04 | 2012-06-20 | 中山大学 | Preparation method of carbon-coated sulfur anode material of lithium sulfur secondary battery |
| CN102522542A (en) * | 2011-12-14 | 2012-06-27 | 上海交通大学 | Elemental sulfur composite material containing graphene and preparation method thereof |
| CN103073068A (en) * | 2013-01-24 | 2013-05-01 | 中国工程物理研究院电子工程研究所 | Method for synthesizing pyrite type ferrous disulfide by hydro-thermal method |
| EP2897202A1 (en) * | 2014-01-17 | 2015-07-22 | Greatbatch Ltd. | New high capacity cathode material with improved rate capability performance |
| CN107308956A (en) * | 2017-06-23 | 2017-11-03 | 哈尔滨工业大学 | A kind of preparation method of the efficient many iron sulfide of out-phase class fenton catalyst |
| US10581075B2 (en) | 2014-01-17 | 2020-03-03 | Greatbatch Ltd. | Method for providing a high capacity cathode material with improved rate capability performance |
| CN113178555A (en) * | 2021-04-20 | 2021-07-27 | 中国航发北京航空材料研究院 | Preparation method of iron disulfide cathode composite material |
-
2006
- 2006-05-12 CN CNB2006100118780A patent/CN100470895C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7799311B2 (en) | 2007-09-28 | 2010-09-21 | Eveready Battery Company, Inc. | Processes for producing synthetic pyrite |
| CN102249347A (en) * | 2010-05-18 | 2011-11-23 | 中国科学院兰州化学物理研究所 | Preparation method of iron disulfide microspheres |
| CN102249347B (en) * | 2010-05-18 | 2013-04-10 | 中国科学院兰州化学物理研究所 | Preparation method of iron disulfide microspheres |
| CN102157736A (en) * | 2011-03-23 | 2011-08-17 | 中银（宁波）电池有限公司 | Ferrous disulfide/carbon composite cathode material of primary lithium battery and preparation method and application thereof |
| CN102509803A (en) * | 2011-11-04 | 2012-06-20 | 中山大学 | Preparation method of carbon-coated sulfur anode material of lithium sulfur secondary battery |
| CN102522542A (en) * | 2011-12-14 | 2012-06-27 | 上海交通大学 | Elemental sulfur composite material containing graphene and preparation method thereof |
| CN103073068A (en) * | 2013-01-24 | 2013-05-01 | 中国工程物理研究院电子工程研究所 | Method for synthesizing pyrite type ferrous disulfide by hydro-thermal method |
| CN103073068B (en) * | 2013-01-24 | 2014-10-15 | 中国工程物理研究院电子工程研究所 | Method for synthesizing pyrite type ferrous disulfide by hydro-thermal method |
| EP2897202A1 (en) * | 2014-01-17 | 2015-07-22 | Greatbatch Ltd. | New high capacity cathode material with improved rate capability performance |
| US10581075B2 (en) | 2014-01-17 | 2020-03-03 | Greatbatch Ltd. | Method for providing a high capacity cathode material with improved rate capability performance |
| CN107308956A (en) * | 2017-06-23 | 2017-11-03 | 哈尔滨工业大学 | A kind of preparation method of the efficient many iron sulfide of out-phase class fenton catalyst |
| CN113178555A (en) * | 2021-04-20 | 2021-07-27 | 中国航发北京航空材料研究院 | Preparation method of iron disulfide cathode composite material |
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| CN100470895C (en) | 2009-03-18 |
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