CN103531769A - Lithium battery modified lithium titanate negative electrode material and preparation method thereof - Google Patents
Lithium battery modified lithium titanate negative electrode material and preparation method thereof Download PDFInfo
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- CN103531769A CN103531769A CN201310523725.4A CN201310523725A CN103531769A CN 103531769 A CN103531769 A CN 103531769A CN 201310523725 A CN201310523725 A CN 201310523725A CN 103531769 A CN103531769 A CN 103531769A
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- powder
- silver powder
- lithium titanate
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- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 32
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 31
- -1 modified lithium titanate Chemical class 0.000 title abstract 2
- 239000007773 negative electrode material Substances 0.000 title abstract 2
- 238000002360 preparation method Methods 0.000 title description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 19
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000012986 modification Methods 0.000 claims abstract description 15
- 230000004048 modification Effects 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 15
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 claims abstract description 4
- RXPAJWPEYBDXOG-UHFFFAOYSA-N hydron;methyl 4-methoxypyridine-2-carboxylate;chloride Chemical compound Cl.COC(=O)C1=CC(OC)=CC=N1 RXPAJWPEYBDXOG-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000010445 mica Substances 0.000 claims abstract description 4
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 4
- 239000011787 zinc oxide Substances 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 claims description 12
- 239000010405 anode material Substances 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 229910017083 AlN Inorganic materials 0.000 claims description 3
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 claims description 3
- 240000003183 Manihot esculenta Species 0.000 claims description 3
- 235000016735 Manihot esculenta subsp esculenta Nutrition 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910001570 bauxite Inorganic materials 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 239000012467 final product Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000002105 nanoparticle Substances 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- CPUDPFPXCZDNGI-UHFFFAOYSA-N triethoxy(methyl)silane Chemical compound CCO[Si](C)(OCC)OCC CPUDPFPXCZDNGI-UHFFFAOYSA-N 0.000 claims description 3
- 229910007663 ZnO1-2 Inorganic materials 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 12
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 6
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 6
- 231100000956 nontoxicity Toxicity 0.000 abstract 1
- 238000007599 discharging Methods 0.000 description 4
- 210000004027 cell Anatomy 0.000 description 2
- 229910010707 LiFePO 4 Inorganic materials 0.000 description 1
- 229910052493 LiFePO4 Inorganic materials 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 210000001787 dendrite Anatomy 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/485—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
- H01M4/364—Composites as mixtures
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a lithium battery modified lithium titanate negative electrode material which is characterized in that the material is prepared from the raw materials of, by weight: 400 parts of lithium titanate, 3-4 parts of zinc oxide, 2-3 parts of bismuth nitrate, 4-5 parts of mica, 3-4 parts of copper nitrate, 4-5 parts of modification silver powder, and proper amount of water. According to the invention, the modification silver powder is added, such that the material is provided with good battery dynamic performance, good circulation performance, and good high-rate charge/discharge capacity. Therefore, the performance of a lithium ion battery with the material as the negative electrode is improved. Also, the material has the advantages of no toxicity, no pollution, good safety performance, wide raw material source, low price, long service life, and the like.
Description
Technical field
The present invention relates to chemical energy source Material Field, particularly graphite-doping lithium titanate anode material and preparation method thereof for a kind of lithium battery.
Background technology
As lithium ion battery negative material-lithium titanate, due to high security, high stability, long-life and the environmental protection of lithium titanate, become the negative material of lithium ion battery of new generation and be widely used in new-energy automobile, battery-operated motor cycle and require high security, high stability and macrocyclic application.(1) it is zero strain material, good cycle (2) discharging voltage balance, and also electrolyte is unlikely decomposes, and improves lithium battery security performance; (3) compare with carbon cathode material, lithium titanate has high lithium ion diffusion coefficient, can high power charging-discharging etc. the electromotive force of (4) lithium titanate than the height of pure metal lithium, be difficult for producing lithium dendrite arm, for ensureing that the safety of lithium battery provides the foundation.But also have certain shortcoming, for example the lithium-ion-power cell energy density of other types can be lower relatively; The lithium-ion-power cell of other types is on the high side relatively; Battery consistency still there are differences etc., need further research and development.
Summary of the invention
The object of this invention is to provide graphite-doping lithium titanate anode material and preparation method thereof for a kind of lithium battery.
In order to realize object of the present invention, the present invention passes through following scheme implementation:
A graphite-doping lithium titanate anode material, is made by the raw material of following weight portion: lithium titanate 400, zinc oxide 3-4, bismuth nitrate 2-3, mica 4-5, copper nitrate 3-4, modification silver powder 4-5, water are appropriate;
Described modification silver powder is made by the raw material of following weight portion: silver powder 100, nano-sized carbon 1-2, tapioca 1-2, bauxite 2-3, diatomite 2-3, methyl triethoxysilane 1-2, carborundum 2-3, aluminium nitride 1-2, ZnO1-2, Nb
2o
51-2; Each raw material is mixed, be heated to 50-55 ℃, grind 1-2 hour, be uniformly dispersed into powder, send in calciner at 510-530 ℃ sintering 2-3 hour and get final product.
Lithium battery graphite-doping lithium titanate anode material of the present invention, by following concrete steps, made: other raw material except modification silver powder is mixed, add suitable quantity of water, grind and within 2-3 hour, obtain 200-400 order slurry, spraying is dry, after oven dry, mix with modification silver powder, add the Tissuemat E powder that is equivalent to powder total weight 2-3%, stir, under 12-14Mpa pressure, be pressed into base, put into calciner and calcine 4-5 hour at 720-750 ℃, take out, cooling, be ground into 300-400 order powder.
The invention has the beneficial effects as follows: the present invention adds modification silver powder, make it there is good battery power and learn performance, cycle performance and high power charging-discharging capacity, thereby improved, using the performance of lithium ion battery of this material as negative material; And the present invention has the advantages such as nontoxic, pollution-free, security performance is good, raw material wide material sources, low price, and the life-span is long.
Embodiment
Below by instantiation, the present invention is described in detail.
A graphite-doping lithium titanate anode material, by following weight portion (kilogram) raw material make: lithium titanate 400, zinc oxide 3, bismuth nitrate 2, mica 4, copper nitrate 3, modification silver powder 4, water are appropriate;
Described modification silver powder by following weight portion (kilogram) raw material make: silver powder 100, nano-sized carbon 2, tapioca 2, bauxite 2, diatomite 3, methyl triethoxysilane 1, carborundum 2, aluminium nitride 1, ZnO1, Nb
2o
51-2; Each raw material is mixed, be heated to 50-55 ℃, grind 1-2 hour, be uniformly dispersed into powder, send in calciner at 510-530 ℃ sintering 2-3 hour and get final product.
Lithium battery graphite-doping lithium titanate anode material of the present invention, by following concrete steps, made: other raw material except modification silver powder is mixed, add suitable quantity of water, grind and within 2-3 hour, obtain 200-400 order slurry, spraying is dry, after oven dry, mix with modification silver powder, add the Tissuemat E powder that is equivalent to powder total weight 2-3%, stir, under 12-14Mpa pressure, be pressed into base, put into calciner and calcine 4-5 hour at 720-750 ℃, take out, cooling, be ground into 300-400 order powder.
Lithium titanate material of the present invention, negative pole as lithium ion battery, the LiFePO 4 material of usining is assembled into cylindrical 14500 batteries as positive pole, employing LiFePO4 is excessive, according to lithium titanate meter of the present invention, its initial charge specific capacity > 175mAh/g, specific discharge capacity > 160mAh/g, cycle performance is excellent, and its 10C multiplying power discharging specific capacity is greater than 130mAh/g, its tap density is 0.9-1.5g/cm3, specific area is 0.1-10m2/g, compacted density is 2.1-2.5g/cm3, adhesive property is good, be applicable to large-scale production and application.
Claims (2)
1. a lithium battery graphite-doping lithium titanate anode material, is characterized in that, by the raw material of following weight portion, is made: lithium titanate 400, zinc oxide 3-4, bismuth nitrate 2-3, mica 4-5, copper nitrate 3-4, modification silver powder 4-5, water are appropriate;
Described modification silver powder is made by the raw material of following weight portion: silver powder 100, nano-sized carbon 1-2, tapioca 1-2, bauxite 2-3, diatomite 2-3, methyl triethoxysilane 1-2, carborundum 2-3, aluminium nitride 1-2, ZnO1-2, Nb
2o
51-2; Each raw material is mixed, be heated to 50-55 ℃, grind 1-2 hour, be uniformly dispersed into powder, send in calciner at 510-530 ℃ sintering 2-3 hour and get final product.
2. lithium battery graphite-doping lithium titanate anode material according to claim 1, it is characterized in that, by following concrete steps, made: other raw material except modification silver powder is mixed, add suitable quantity of water, grind and within 2-3 hour, obtain 200-400 order slurry, spraying is dry, after oven dry, mix with modification silver powder, add the Tissuemat E powder that is equivalent to powder total weight 2-3%, stir, under 12-14Mpa pressure, be pressed into base, put into calciner and calcine 4-5 hour at 720-750 ℃, take out, cooling, be ground into 300-400 order powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310523725.4A CN103531769A (en) | 2013-10-30 | 2013-10-30 | Lithium battery modified lithium titanate negative electrode material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310523725.4A CN103531769A (en) | 2013-10-30 | 2013-10-30 | Lithium battery modified lithium titanate negative electrode material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103531769A true CN103531769A (en) | 2014-01-22 |
Family
ID=49933601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310523725.4A Pending CN103531769A (en) | 2013-10-30 | 2013-10-30 | Lithium battery modified lithium titanate negative electrode material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103531769A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016045622A1 (en) * | 2014-09-26 | 2016-03-31 | 苏州宝时得电动工具有限公司 | Battery, battery pack and continuous power supply |
| US10418666B2 (en) | 2013-06-28 | 2019-09-17 | Positec Power Tools (Suzhou) Co., Ltd. | Battery |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101488584A (en) * | 2009-03-06 | 2009-07-22 | 清华大学 | Asymmetric lithium iron phosphate cell using lithium titanate as main active substance of negative pole |
-
2013
- 2013-10-30 CN CN201310523725.4A patent/CN103531769A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101488584A (en) * | 2009-03-06 | 2009-07-22 | 清华大学 | Asymmetric lithium iron phosphate cell using lithium titanate as main active substance of negative pole |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10418666B2 (en) | 2013-06-28 | 2019-09-17 | Positec Power Tools (Suzhou) Co., Ltd. | Battery |
| US10854928B2 (en) | 2013-06-28 | 2020-12-01 | Positec Power Tools (Suzhou) Co., Ltd. | Electrolyte and battery |
| WO2016045622A1 (en) * | 2014-09-26 | 2016-03-31 | 苏州宝时得电动工具有限公司 | Battery, battery pack and continuous power supply |
| US11069891B2 (en) | 2014-09-26 | 2021-07-20 | Positec Power Tools (Suzhou) Co., Ltd. | Battery, battery pack and continuous power supply |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140122 |
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| RJ01 | Rejection of invention patent application after publication |