CN102097618B - Carbon-coated positive electrode material LiFexM1yM2zPO4Preparation method of (1) - Google Patents
Carbon-coated positive electrode material LiFexM1yM2zPO4Preparation method of (1) Download PDFInfo
- Publication number
- CN102097618B CN102097618B CN2011100056639A CN201110005663A CN102097618B CN 102097618 B CN102097618 B CN 102097618B CN 2011100056639 A CN2011100056639 A CN 2011100056639A CN 201110005663 A CN201110005663 A CN 201110005663A CN 102097618 B CN102097618 B CN 102097618B
- Authority
- CN
- China
- Prior art keywords
- carbon
- source
- iron
- lithium
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title abstract description 7
- 239000007774 positive electrode material Substances 0.000 title abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000002360 preparation method Methods 0.000 claims abstract description 14
- 239000010405 anode material Substances 0.000 claims abstract description 13
- 229910052742 iron Inorganic materials 0.000 claims abstract description 10
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 claims abstract description 8
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910000398 iron phosphate Inorganic materials 0.000 claims abstract description 6
- 239000002105 nanoparticle Substances 0.000 claims abstract description 6
- 239000008367 deionised water Substances 0.000 claims abstract description 5
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000011261 inert gas Substances 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims abstract description 4
- 239000011574 phosphorus Substances 0.000 claims abstract description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 4
- 238000005245 sintering Methods 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims abstract description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical group OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 6
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000003002 pH adjusting agent Substances 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 229910052749 magnesium Inorganic materials 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims 3
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical group [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 claims 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims 2
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 claims 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 claims 2
- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Chemical compound [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 claims 2
- IIPYXGDZVMZOAP-UHFFFAOYSA-N lithium nitrate Chemical compound [Li+].[O-][N+]([O-])=O IIPYXGDZVMZOAP-UHFFFAOYSA-N 0.000 claims 2
- 239000001488 sodium phosphate Substances 0.000 claims 2
- 229910000162 sodium phosphate Inorganic materials 0.000 claims 2
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid group Chemical group S(O)(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims 2
- FPFSGDXIBUDDKZ-UHFFFAOYSA-N 3-decyl-2-hydroxycyclopent-2-en-1-one Chemical compound CCCCCCCCCCC1=C(O)C(=O)CC1 FPFSGDXIBUDDKZ-UHFFFAOYSA-N 0.000 claims 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims 1
- 239000002202 Polyethylene glycol Substances 0.000 claims 1
- 239000004372 Polyvinyl alcohol Substances 0.000 claims 1
- 229920002472 Starch Polymers 0.000 claims 1
- 229930006000 Sucrose Natural products 0.000 claims 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims 1
- 229910021541 Vanadium(III) oxide Inorganic materials 0.000 claims 1
- MQRWBMAEBQOWAF-UHFFFAOYSA-N acetic acid;nickel Chemical compound [Ni].CC(O)=O.CC(O)=O MQRWBMAEBQOWAF-UHFFFAOYSA-N 0.000 claims 1
- 150000001412 amines Chemical class 0.000 claims 1
- 235000011114 ammonium hydroxide Nutrition 0.000 claims 1
- 239000004202 carbamide Substances 0.000 claims 1
- 239000001913 cellulose Substances 0.000 claims 1
- 229920002678 cellulose Polymers 0.000 claims 1
- 239000011651 chromium Substances 0.000 claims 1
- WYYQVWLEPYFFLP-UHFFFAOYSA-K chromium(3+);triacetate Chemical compound [Cr+3].CC([O-])=O.CC([O-])=O.CC([O-])=O WYYQVWLEPYFFLP-UHFFFAOYSA-K 0.000 claims 1
- 239000010949 copper Substances 0.000 claims 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims 1
- MCWXGJITAZMZEV-UHFFFAOYSA-N dimethoate Chemical compound CNC(=O)CSP(=S)(OC)OC MCWXGJITAZMZEV-UHFFFAOYSA-N 0.000 claims 1
- 239000008103 glucose Substances 0.000 claims 1
- 125000002791 glucosyl group Chemical group C1([C@H](O)[C@@H](O)[C@H](O)[C@H](O1)CO)* 0.000 claims 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 claims 1
- 235000014413 iron hydroxide Nutrition 0.000 claims 1
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 claims 1
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims 1
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 claims 1
- XIXADJRWDQXREU-UHFFFAOYSA-M lithium acetate Chemical compound [Li+].CC([O-])=O XIXADJRWDQXREU-UHFFFAOYSA-M 0.000 claims 1
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims 1
- 229910052808 lithium carbonate Inorganic materials 0.000 claims 1
- 239000011777 magnesium Substances 0.000 claims 1
- UEGPKNKPLBYCNK-UHFFFAOYSA-L magnesium acetate Chemical group [Mg+2].CC([O-])=O.CC([O-])=O UEGPKNKPLBYCNK-UHFFFAOYSA-L 0.000 claims 1
- 239000011654 magnesium acetate Substances 0.000 claims 1
- 229940069446 magnesium acetate Drugs 0.000 claims 1
- 235000011285 magnesium acetate Nutrition 0.000 claims 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical group [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims 1
- 239000000347 magnesium hydroxide Substances 0.000 claims 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims 1
- 239000011572 manganese Substances 0.000 claims 1
- 229940071125 manganese acetate Drugs 0.000 claims 1
- UOGMEBQRZBEZQT-UHFFFAOYSA-L manganese(2+);diacetate Chemical compound [Mn+2].CC([O-])=O.CC([O-])=O UOGMEBQRZBEZQT-UHFFFAOYSA-L 0.000 claims 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims 1
- 229940078494 nickel acetate Drugs 0.000 claims 1
- 229910017604 nitric acid Inorganic materials 0.000 claims 1
- 229920001223 polyethylene glycol Polymers 0.000 claims 1
- 229920002451 polyvinyl alcohol Polymers 0.000 claims 1
- 239000011435 rock Substances 0.000 claims 1
- 239000008107 starch Substances 0.000 claims 1
- 235000019698 starch Nutrition 0.000 claims 1
- 239000005720 sucrose Substances 0.000 claims 1
- 239000010936 titanium Substances 0.000 claims 1
- 239000004408 titanium dioxide Substances 0.000 claims 1
- 229960005196 titanium dioxide Drugs 0.000 claims 1
- 239000002184 metal Substances 0.000 abstract description 2
- 150000003839 salts Chemical class 0.000 abstract description 2
- 229910010753 LiFex Inorganic materials 0.000 abstract 2
- 229910019142 PO4 Inorganic materials 0.000 abstract 2
- 239000010406 cathode material Substances 0.000 abstract 2
- 239000002904 solvent Substances 0.000 abstract 1
- 229910052493 LiFePO4 Inorganic materials 0.000 description 9
- 150000002500 ions Chemical class 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000005955 Ferric phosphate Substances 0.000 description 2
- 229910018095 Ni-MH Inorganic materials 0.000 description 2
- 229910018477 Ni—MH Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 229940032958 ferric phosphate Drugs 0.000 description 2
- 229910000399 iron(III) phosphate Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a carbon-coated anode material LiFexM1yM2zPO4The preparation method comprises the following steps: firstly, adding an iron source, a phosphorus source and a pH regulator into a high-pressure reaction kettle by taking deionized water as a solvent according to a molar ratio of 1:1:0.02-0.1, adding a carbon source according to 15-25% of the weight of the iron source, and reacting to obtain carbon-coated iron phosphate nano-particles; then, mixing a lithium source, carbon-coated iron phosphate nano-particles, a metal salt containing M1 and M2 according to a molar ratio of 1:0.94-0.98:0.01-0.03:0.01-0.03 and a carbon source accounting for 15-25% of the weight of the iron source by a wet method, drying, and sintering at high temperature under the protection of inert gas to obtain a carbon-coated positive electrode material LiFexM1yM2zPO4. The cathode material has high electronic conductivity, excellent rate performance and cycle performance, and is suitable for being used as a cathode material of a power battery of an electric bus.
Description
Technical field
The present invention relates to a kind of carbon clad anode material LiFe
xM1
yM2
zPO
4The preparation method, belong to the lithium-ion-power cell preparing technical field.
Background technology
To the appearance of New Energy Industry support plan, caused the domestic new round upsurge that the research and development of electrokinetic cell are produced in country " the 12 " planning.The current driving force battery mainly is divided three classes: 1. lead-acid battery.Lead-acid battery belongs to the traditional power battery, and energy density is lower, and seriously polluted, is not suitable as the particularly electrokinetic cell of electric bus of automobile; 2. Ni-MH battery.Ni-MH battery is owing to exist " memory effect ", and the self discharge effect is obvious, also is not suitable as the electrokinetic cell of automobile; 3. lithium battery.Lithium battery is ferric phosphate lithium cell particularly, and energy density is higher, good stability, and raw material is cheap, is a kind of comparatively desirable electrokinetic cell.
LiFePO4 exists the shortcomings such as electronic conductivity is low, the ion guide diffusion coefficient is little as positive electrode.In order to improve these deficiencies of LiFePO4, usually in producing LiFePO4 technique, can adopt ion doping, carbon coats, and reduces the means such as particle size.Coat electronic conductivity (Nature Materials, 2002,1, the 123-128 that can significantly improve LiFePO4 by ion doping and carbon; Journal of Power Sources, 195,2010,7904-7929), then can reduce Li by reducing particle size
+The evolving path, thereby improve Li
+Diffusion velocity.
In traditional LiFePO4 production technology, the technology that has mostly adopted ion doping and carbon to coat, the LiFePO4 that obtains since carbon coat not exclusively, the high rate performance that can not do well.
Summary of the invention
The object of the present invention is to provide that a kind of LiFePO4 electronic conductivity is high, particle is less and the distribution homogeneous, has the carbon clad anode material LiFe of fine high rate performance and cycle performance
xM1
yM2
zPO
4The preparation method.
Its technical scheme is: a kind of carbon clad anode material LiFe
xM1
yM2
zPO
4The preparation method, it is characterized in that preparing according to the following steps:
1) with source of iron, phosphorus source and pH adjusting agent in molar ratio 1:1:0.02-0.1 join in the autoclave that contains in the deionized water, and the 15-25% that presses source of iron weight adds carbon source, 180-220 ℃ of lower reaction 1～3 hour, then filter, with the deionized water washing, obtain the iron phosphate nano particle that carbon coats after the drying;
2) slaine that the carbon that obtains in lithium source, the step 1) is coated the iron phosphate nano particle, contains M1 and contain M2 is 1:0.94-0.98:0.01-0.03:0.01-0.03 and by the carbon source of source of iron weight 15-25% in molar ratio; at 95%(V%) material by wet type mixing in the alcohol; then drying; 650～750 ℃ of sintering are 3～5 hours under inert gas shielding, obtain the LiFe that carbon coats
xM1
yM2
zPO
4
The LiFe that described carbon coats
xM1
yM2
zPO
4In, M1 and M2 are two kinds in Mg, Mn, Ni, Cu, Cr, Al, Ti and the V metallic element, 0＜x＜1,0＜y≤0.02,0＜z≤0.02.
Its technique effect is: the present invention adopts ion doping and secondary carbon to coat compound technical method, in coating first, or not directly to coat as presoma with the phosphoric acid body, carry out an original position carbon coating but in preparation ferric phosphate process, add carbon source, then through carrying out ion doping with lithium source, carbon source, the reacting metal salt that contains M1 and M2 and secondary carbon coats, effectively suppress growing up of LiFePO4 crystal grain in the high-temperature sintering process after secondary coats, played the effect that reduces particle size.The LiFePO4 that obtains in this way, its electronic conductivity is high, particle is less and the distribution homogeneous, has good high rate performance and cycle performance, is suitable as the electric bus power battery anode material.
Embodiment
A kind of carbon clad anode material LiFe
xM1
yM2
zPO
4The preparation method, according to the following steps the preparation:
The first step:
Second step:
Each the embodiment carbon that obtains by above-mentioned steps coats LiFe
xM1
yM2
zPO
4The partial properties of product is listed as follows:
Claims (6)
1. carbon clad anode material LiFe
xM1
yM2
zPO
4The preparation method, it is characterized in that preparing according to the following steps:
1) with source of iron, phosphorus source and pH adjusting agent in molar ratio 1:1:0.02-0.1 join in the autoclave that contains in the deionized water, and the 15-25% that presses source of iron weight adds carbon source, 180-220 ℃ of lower reaction 1～3 hour, then filter, with the deionized water washing, obtain the iron phosphate nano particle that carbon coats after the drying;
2) slaine that the carbon that obtains in lithium source, the step 1) is coated the iron phosphate nano particle, contains M1 and contain M2 is 1:0.94-0.98:0.01-0.03:0.01-0.03 and by the carbon source of source of iron weight 15-25% in molar ratio; at 95%(V%) material by wet type mixing in the alcohol; then drying; 650～750 ℃ of sintering are 3～5 hours under inert gas shielding, obtain the LiFe that carbon coats
xM1
yM2
zPO
4
The LiFe that described carbon coats
xM1
yM2
zPO
4In, M1 and M2 are two kinds in Mg, Mn, Ni, Cu, Cr, Al, Ti and the V metallic element, 0＜x＜1,0＜y≤0.02,0＜z≤0.02.
2. a kind of carbon clad anode material LiFe according to claim 1
xM1
yM2
zPO
4The preparation method, it is characterized in that: described source of iron is ferric ammonium sulfate, iron chloride, ferric sulfate, iron hydroxide, ferric nitrate, iron powder or iron oxide; Described phosphorus source is phosphoric acid, sodium phosphate, dibastic sodium phosphate, phosphoric acid dihydro amine or phosphamide; Described pH adjusting agent is sulfuric acid, hydrochloric acid, nitric acid, ammoniacal liquor, urea, ethylenediamine or acetic acid; Described carbon source is glucose, sucrose, rock sugar, cellulose, polyvinyl alcohol, polyethylene glycol or starch.
3. a kind of carbon clad anode material LiFe according to claim 1
xM1
yM2
zPO
4The preparation method, it is characterized in that: described lithium source is lithium hydroxide, lithium carbonate, lithium chloride, lithium acetate, lithium nitrate or lithium fluoride.
4. a kind of carbon clad anode material LiFe according to claim 1
xM1
yM2
zPO
4The preparation method, it is characterized in that: the described M1 of containing slaine is magnesium hydroxide, chromium acetate, copper sulphate, aluminium chloride or vanadic oxide; The described M2 of containing slaine is magnesium acetate, manganese acetate, nickel acetate or titanium dioxide.
5. a kind of carbon clad anode material LiFe according to claim 1
xM1
yM2
zPO
4The preparation method, it is characterized in that: described step 1 and step 2) in carbon source be the same carbon source.
6. a kind of carbon clad anode material LiFe according to claim 1
xM1
yM2
zPO
4The preparation method, it is characterized in that: described inert gas is N
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100056639A CN102097618B (en) | 2011-01-12 | 2011-01-12 | Carbon-coated positive electrode material LiFexM1yM2zPO4Preparation method of (1) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100056639A CN102097618B (en) | 2011-01-12 | 2011-01-12 | Carbon-coated positive electrode material LiFexM1yM2zPO4Preparation method of (1) |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102097618A CN102097618A (en) | 2011-06-15 |
| CN102097618B true CN102097618B (en) | 2013-04-17 |
Family
ID=44130560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100056639A Active CN102097618B (en) | 2011-01-12 | 2011-01-12 | Carbon-coated positive electrode material LiFexM1yM2zPO4Preparation method of (1) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102097618B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102842714B (en) * | 2011-06-24 | 2016-08-03 | 河南科隆集团有限公司 | Lithium ion battery polynary phosphate cathode material and preparation method thereof |
| CN102420329B (en) * | 2011-10-18 | 2014-10-29 | 新乡市中科科技有限公司 | High-tap-density composite modified cathode material of lithium ion battery and preparation method thereof |
| CN102522522A (en) * | 2011-12-02 | 2012-06-27 | 苏州冠硕新能源有限公司 | Nanometer anode material and preparation method |
| CN103078113A (en) * | 2013-01-15 | 2013-05-01 | 浙江南都电源动力股份有限公司 | Vanadium-titanium ion-codoped lithium iron phosphate material and preparation method thereof |
| CN103346313B (en) * | 2013-06-18 | 2015-12-02 | 西安建筑科技大学 | A kind of preparation method of cathode material lithium vanadium phosphate of lithium ion battery |
| CN104425820B (en) * | 2013-09-09 | 2017-07-14 | 北京国能电池科技有限公司 | Lithium ferric manganese phosphate material, its preparation method and anode material for lithium-ion batteries |
| CN103956461B (en) * | 2014-04-28 | 2016-06-15 | 张家港智电芳华蓄电研究所有限公司 | A kind of hydrothermal preparing process of LiFePO 4 and ferrous acid lithium composite material |
| CN104275173A (en) * | 2014-07-30 | 2015-01-14 | 浙江师范大学 | Carbon-coated metal-doped zinc oxide composite photocatalysis nano material and preparation method thereof |
| CN106299354A (en) * | 2015-06-04 | 2017-01-04 | 深圳市比克电池有限公司 | A kind of anode material of lithium battery preparation method |
| CN107188149B (en) * | 2017-07-31 | 2019-07-02 | 蒋央芳 | A kind of technique of LITHIUM BATTERY high-purity nm ferric phosphate |
| CN110911680A (en) * | 2019-11-22 | 2020-03-24 | 贵州唯特高新能源科技有限公司 | Preparation method of Ti and V element composite doped lithium iron phosphate |
| CN112670473B (en) * | 2020-12-23 | 2023-02-28 | 中伟新材料股份有限公司 | Ternary precursor, preparation method thereof, lithium ion battery positive electrode material and lithium ion battery |
| CN114927684B (en) * | 2022-06-23 | 2024-06-07 | 蜂巢能源科技股份有限公司 | Lithium iron phosphate positive electrode material, preparation method thereof and lithium ion battery |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101901898A (en) * | 2009-12-07 | 2010-12-01 | 耿世达 | Lithium battery LiFePO4 anode material with internal three-dimensional conductive structure and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6528033B1 (en) * | 2000-01-18 | 2003-03-04 | Valence Technology, Inc. | Method of making lithium-containing materials |
| DE10117904B4 (en) * | 2001-04-10 | 2012-11-15 | Zentrum für Sonnenenergie- und Wasserstoff-Forschung Baden-Württemberg Gemeinnützige Stiftung | Binary, ternary and quaternary lithium iron phosphates, process for their preparation and their use |
| DE102005012640B4 (en) * | 2005-03-18 | 2015-02-05 | Süd-Chemie Ip Gmbh & Co. Kg | Circular process for the wet-chemical production of lithium metal phosphates |
-
2011
- 2011-01-12 CN CN2011100056639A patent/CN102097618B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101901898A (en) * | 2009-12-07 | 2010-12-01 | 耿世达 | Lithium battery LiFePO4 anode material with internal three-dimensional conductive structure and preparation method thereof |
Non-Patent Citations (5)
| Title |
|---|
| C.H.Mi,et al.In Situ Synthesis and Properties of Carbon-Coated LiFePO4 as Li-Ion Battery.《Journal of The Electrochemical Society》.2005,第152卷(第3期),A483-A487. |
| In Situ Synthesis and Properties of Carbon-Coated LiFePO4 as Li-Ion Battery;C.H.Mi,et al;《Journal of The Electrochemical Society》;20050124;第152卷(第3期);A483-A487 * |
| JP特开2007-115709A 2007.05.10 |
| The Design of a LiFePO4/Carbon Nanocomposite With a Core–Shell Structure and Its Synthesis by an In Situ Polymerization Restriction Method;Yonggang Wang, et al;《Angew.Chem.Int.Ed》;20081231;第47卷;7461-7465 * |
| Yonggang Wang, et al.The Design of a LiFePO4/Carbon Nanocomposite With a Core–Shell Structure and Its Synthesis by an In Situ Polymerization Restriction Method.《Angew.Chem.Int.Ed》.2008,第47卷7461-7465. |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102097618A (en) | 2011-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102097618B (en) | Carbon-coated positive electrode material LiFexM1yM2zPO4Preparation method of (1) | |
| US10957903B2 (en) | Layered lithium-rich manganese-based cathode material with olivine structured LIMPO4 surface modification and preparation method thereof | |
| CN106058225A (en) | LiMn1-XFexPO4 positive electrode material having core-shell structure, and preparation method thereof, and lithium ion battery | |
| CN103400962B (en) | A kind of spherical LiFePO 4/ (C+La 2/3-xli 3xtiO 3) composite anode material and preparation method thereof | |
| CN102569794B (en) | Carbon-coating method for lithium iron phosphate anode material | |
| JP2015525182A (en) | Method for producing graphene-based LiFePO4 / C composite material | |
| CN102593427B (en) | A kind of method of preparing carbon-coated spherical nano lithium iron phosphate by liquid phase | |
| CN105514373A (en) | Positive electrode material of high-capacity lithium ion battery and preparation method of positive electrode material | |
| CN101826617B (en) | Preparation method of lithium iron phosphate | |
| CN105514430A (en) | Spherical LiFexMnyPO4 anode material and preparation method thereof | |
| CN1632970A (en) | Method for preparing high-density spherical lithium iron phosphate and lithium iron manganese phosphate | |
| CN105036103B (en) | A kind of preparation method of cuboid-type anode material of lithium battery lithium ferric manganese phosphate | |
| CN101519199A (en) | Method for preparing high-density spherical lithium iron phosphate for lithium ion power battery | |
| CN102344356B (en) | Preparation method of battery grade nano ferrous oxalate | |
| CN102496714A (en) | Anode active substance, production method thereof, and lithium ion battery employing anode active substance | |
| CN106829906A (en) | A kind of preparation method of new energy battery-grade iron phosphate | |
| CN103985871A (en) | Preparation method for positive electrode material of iron, lithium and manganese phosphate battery | |
| CN107887583A (en) | A kind of doped lithium iron phosphate anode material and preparation method thereof | |
| CN102479945A (en) | Preparation method of spherical lithium iron phosphate cathode material | |
| CN113800493A (en) | Lithium iron phosphate cathode material and preparation method and application thereof | |
| CN112670475A (en) | Lithium iron phosphate composite material, preparation method thereof, lithium battery using composite material and battery power vehicle | |
| CN103972506A (en) | Preparation method of nano sheet negative electrode material, phosphoric acid oxygen vanadium, of lithium ion battery | |
| WO2019200557A1 (en) | Preparation method for iron phosphate | |
| CN102942167A (en) | Anhydrous ferric phosphate, lithium iron phosphate prepared from the anhydrous ferric phosphate and use of the lithium iron phosphate | |
| CN105336944A (en) | High-capacity cathode material for lithium ion batteries and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HEFEI GUOXUAN HIGH-TECH POWER ENERGY CO., LTD. Free format text: FORMER NAME: HEFEI GUOXUAN HIGH-TECH POWER ENERGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 230011, No. 7 D Road, Yaohai Industrial Park, Hefei, Anhui, China Patentee after: Hefei Guoxuan High-Tech Power Energy Co.,Ltd. Address before: 230011, No. 7 D Road, Yaohai Industrial Park, Hefei, Anhui, China Patentee before: Gotion High-tech Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 230000 Yaohai Industrial Park, Anhui, Hefei No. D weft Road, No. 7 Patentee after: Gotion High-tech Co., Ltd. Address before: 230011, No. 7 D Road, Yaohai Industrial Park, Hefei, Anhui, China Patentee before: Hefei Guoxuan High-Tech Power Energy Co.,Ltd. |