CN102769131A - Method for preparing manganese phosphate lithium / carbon composite material - Google Patents
Method for preparing manganese phosphate lithium / carbon composite material Download PDFInfo
- Publication number
- CN102769131A CN102769131A CN2012101427804A CN201210142780A CN102769131A CN 102769131 A CN102769131 A CN 102769131A CN 2012101427804 A CN2012101427804 A CN 2012101427804A CN 201210142780 A CN201210142780 A CN 201210142780A CN 102769131 A CN102769131 A CN 102769131A
- Authority
- CN
- China
- Prior art keywords
- composite material
- source
- manganese
- lithium
- carbon composite
- 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.)
- Pending
Links
Images
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 solid-liquid combined method for preparing a manganese phosphate lithium / carbon composite material. According to the method, raw materials comprising ammonium dihydrogen phosphate, a lithium source, a manganese source, an iron source, a carbon source and metal doped elements are mixed, dried, heated to 450-700 DEG C under atmosphere conditions, dried for 1-12 h at the constant temperature, and cooled to obtain the manganese phosphate lithium / carbon composite material. The invention adopts a principle of solid-liquid combination, effectively improves uniformity of material mixing, and facilitates improvement on stability and degree of crystallinity of the product. The composite material synthesized by the method is uniformly dispersed, and has effectively improved electronic conductivity. One-time calcination adopted by the invention can effectively reduce energy consumption; and the obtained composite material has particle size distribution of 1-20 mum, and 0.1C rate discharge capacity of 142mAh/g; and electrochemical tests show that the electrode has obvious discharge platform at about 4V, high discharge capacity and good cycle stability.
Description
Technical field
The invention belongs to the materialogy field, be specifically related to a kind of preparation method of iron manganese phosphate lithium/carbon composite material.
Background of invention
The development of lithium rechargeable battery is apart from existing vicennial history of the present, and up to the present, it is the transition metal oxide that can generate intercalation compounds with lithium that people study maximum.Recent two decades comes, and people have found the positive electrode active materials of six kinds of practicalities through the research to electrode material of secondary lithium ion battery: cobalt acid lithium (LiCoO
2), lithium nickelate (LiNiO
2), LiMn2O4 (LiMn
2O
4), lithium vanadate (Li
1+xV
3O
8), phosphoric acid vanadium lithium (Li
3V
2(PO
4)
3) and LiFePO4 (LiFePO
4) and their various doping type compounds of deriving.LiCoO
2Toxicity is bigger, costs an arm and a leg, and fail safe is difficult to be guaranteed when making the large-sized power battery, so it is mainly used in compact electric apparatus such as mobile phone at present.LiNiO
2Lower slightly than lithium cobalt oxygen number lattice, but the preparation difficulty, poor heat stability, properties of product are difficult to stablize, and also have bigger potential safety hazard.Spinelle (LiMn
2O
4) cost is low, the overcharging resisting security performance is good, and preparation is also than being easier to, but its gram volume is low, and electrical properties in high temperatures and cycle performance are relatively poor, and spinel structure distortion effect takes place easily and instability when discharging and recharging, and self-discharge rate is than higher.LiFePO
4Have that cost is low, nontoxic, environmentally friendly, the raw material source is abundant, theoretical capacity and operating voltage be than advantages such as height, and it has the security performance of better cycle ability and Geng Gao.Low-cost, the big capacity of exploitation at present and production, high safety performance, long-life second generation anode material for lithium-ion batteries become the focus of being studied both at home and abroad.The performance of several kinds of business-like positive electrodes compares, the LiFePO of olivine structural
4Have significant practical value, phosphate material is acknowledged as the preferred material that is best suited for doing power battery material at present.
In anode material for lithium-ion batteries, the LiFePO of olivine structural
4Oneself is through having obtained commercial use.But its low relatively voltage platform (3.4V) make its energy density than limit its development and application.With LiFePO
4LiMnPO with same structure
4, with respect to Li
+The electrode potential of/Li is 4.1V, far above LiFePO
4Voltage platform, and be positioned at the electrochemical stability window of existing electrolyte system, this just makes this material have the advantage of potential high-energy-density.Yet, because LiMnPO
4Material conductivity extreme difference is considered to insulator, causes the synthetic LiMnPO that can reversiblely discharge and recharge
4Very difficulty has limited its development and application.
Be to coat and the metal-doped chemical property that improves material in many iron manganese phosphate lithium/carbon composite material number of patent applications through carbon; Obtained more satisfactory capacity, but its preparation method is all comparatively loaded down with trivial details, and is mostly that secondary mixes or secondary clacining; Technological process has greatly extended; Its industrialization difficulty is improved, and improved cost and batch property that is difficult to guarantee product, make it more be difficult to be improved and solve in Battery Plant's rate of finished products.
Summary of the invention
For solving the problems of the technologies described above, the iron manganese phosphate lithium/carbon composite material that the present invention provides a kind of new prepared to be used for battery, this preparation method has reduced the time and the reaction temperature of reaction, has simplified preparation section, can significantly reduce technological process and cuts down the consumption of energy.
The technical scheme that the present invention adopted is following:
A kind of method for preparing the iron manganese phosphate lithium/carbon composite material is a raw material with ammonium dihydrogen phosphate, lithium source, manganese source, source of iron, carbon source and doped metallic elements compound, and the general formula of said composite material is LiM
Y(Mn
x+ Fe
1-x)
1-YPO
4/ C
Z, wherein M is one or more metallic elements, and X is 1～0.5, and Y is 0.1～0.01, and Z is 10%～0.1%, comprises the steps:
(1) be 0.48～0.85: 0.10～0.48: 0.99～1.02: 0.49～0.52 in molar ratio: 0.01～0.05 gets manganese source, source of iron, ammonium dihydrogen phosphate, lithium source and doped metallic elements compound respectively; Get mass percent again and be 5～20% carbon source, mix;
(2) adding mass percent is 100～200% dispersants, dry under 60～80 ℃ of temperature under inert gas shielding behind the high speed ball milling;
(3) after fragmentation was ground into dusty material, 450～700 ℃ of high temperature sinterings 4～12 hours, crushing and classification sieved and obtains the iron manganese phosphate lithium/carbon composite material under inert gas shielding.
Said manganese source is one or more of manganese monoxide, mangano-manganic oxide, manganese dioxide, manganese carbonate and manganese oxalate.
Said source of iron is ferrous oxalate and/or ferrous oxide.
Said carbon source is one or more of sucrose, glucose, soluble starch and polyvinyl alcohol.
Said dispersant is absolute ethyl alcohol and/or acetone.
Said doped metallic elements is one or more of Mg, Al, Ca, Sc, Ti, V, Cr, Fe, Co, Ni, Cu, Zn, Ga, Ge, Sr, Zr, Nb, Mo, Ta, W, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu.
The present invention adopts the principle of solid-liquid combination, effectively raises the uniformity of raw materials mix, helps heightening the stability and the degree of crystallinity of product.The dispersion of materials synthetic through this method is even, has effectively improved the electron conduction of material.The present invention can effectively cut down the consumption of energy through once calcining; The particle size distribution of obtained composite material is 1-20 μ m, and the specific discharge capacity of 0.1C multiplying power is 142mAh/g, and electro-chemical test shows that electrode has tangible discharge platform about 4V; Discharge capacity is high, and the stable circulation performance is good.Simultaneously, technology of the present invention is simple, can reduce equipment investment and production cost significantly, and dispersant can recycle, and has further reduced cost and has shortened man-hour, is suitable for large-scale industrial production.
Description of drawings
Fig. 1 is the crystallogram (adopt Cuk α target emanation, θ=2 °) of the prepared iron manganese phosphate lithium/carbon composite material of embodiment 1;
Fig. 2 is the SEM figure of the prepared iron manganese phosphate lithium/carbon composite material of embodiment 1;
Fig. 3 is the prepared iron manganese phosphate lithium/carbon composite material particle size distribution figure of embodiment 1.
Embodiment
Under the room temperature, get lithium carbonate 16.3284g (LITHIUM BATTERY 99.5%), powdered glucose 19.7562g (food-grade), manganese monoxide 24.0000g (high-purity); Phosphorus ammonium dihydrogen phosphate 51.1024g (food-grade), ferrous oxalate 15.1390g (LITHIUM BATTERY), magnesium hydroxide 1.3501g (nanoscale), with the 150ml absolute ethyl alcohol as dispersant; It is total to join the 500ml stainless steel jar mill, adds 200g zirconium ball, carries out ball milling, and rotating speed is 300r/min; Time is 4 hours, is dry in the baking oven of 99.99% protectiveness at nitrogen then, and baking temperature 60-80 ℃, pulverize with high speed disintegrator dry intact back; Be placed on tube furnace then, the nitrogen with 99.99% is as sintering atmosphere, gas flow 6L/min; With 3 ℃/minute heating rates furnace temperature is risen to 660 ℃, 660 ℃ of following sintering 6 hours, to be cooled to room temperature then; Cross 300 eye mesh screens and promptly obtain the iron manganese phosphate lithium/carbon composite material, its carbon content is 4.3%, and its physical and chemical performance characterizes sees Fig. 1, Fig. 2 and Fig. 3.XRD shows no dephasign, the material particle size narrowly distributing of this method preparation, and chemical property is good, and specific discharge capacity reaches 142mAh/g (voltage range at 2.5-4.5V, discharge-rate 0.1C).
Under the room temperature, get lithium carbonate 16.3284g (LITHIUM BATTERY 99.5%), powdered glucose 9.8780g (food-grade), manganese monoxide 24.0000g (high-purity); Phosphorus ammonium dihydrogen phosphate 51.1024g (food-grade), ferrous oxalate 15.1390g (LITHIUM BATTERY), magnesium hydroxide 1.3501g (nanoscale), with the 150ml absolute ethyl alcohol as dispersant; It is total to join the 500ml stainless steel jar mill, adds 200g zirconium ball, carries out ball milling, and rotating speed is 300r/min; Time is 4 hours, is dry in the baking oven of 99.99% protectiveness at nitrogen then, baking temperature 60-80 ℃; Pulverize with high speed disintegrator dry intact back, is placed on tube furnace then, and the nitrogen with 99.99% is as sintering atmosphere; Gas flow 6L/min rises to 550 ℃ with 3 ℃/minute heating rates with furnace temperature, then 660 ℃ of following sintering 6 hours; To be cooled to room temperature, to cross 300 eye mesh screens and promptly obtain the iron manganese phosphate lithium/carbon composite material, its carbon content is 2.0%.
Embodiment 3
Under the room temperature, get lithium carbonate 16.3284g (LITHIUM BATTERY 99.5%), powdered glucose 9.8780g (food-grade), manganese monoxide 26.0000g (high-purity); Phosphorus ammonium dihydrogen phosphate 51.1024g (food-grade), ferrous oxalate 10.0920g (LITHIUM BATTERY), magnesium hydroxide 1.3501g (nanoscale), with the 150ml absolute ethyl alcohol as dispersant; It is total to join the 500ml stainless steel jar mill, adds 200g zirconium ball, carries out ball milling, and rotating speed is 300r/min; Time is 4 hours, is dry in the baking oven of 99.99% protectiveness at nitrogen then, baking temperature 60-80 ℃; Pulverize with high speed disintegrator dry intact back, is placed on tube furnace then, and the nitrogen with 99.99% is as sintering atmosphere; Gas flow 6L/min rises to 550 ℃ with 3 ℃/minute heating rates with furnace temperature, then 660 ℃ of following sintering 6 hours; To be cooled to room temperature, to cross 300 eye mesh screens and promptly obtain the iron manganese phosphate lithium/carbon composite material, its carbon content is 4.3%.
Below only be concrete exemplary applications of the present invention, protection scope of the present invention is not constituted any limitation.The equal technical scheme that exchanges perhaps equivalence replacement and form of all employings all drops within the rights protection scope of the present invention.
Claims (6)
1. a method for preparing the iron manganese phosphate lithium/carbon composite material is a raw material with ammonium dihydrogen phosphate, lithium source, manganese source, source of iron, carbon source and doped metallic elements compound, and the general formula of said composite material is LiM
Y(Mn
x+ Fe
1-x)
1-YPO
4/ C
Z, wherein M is one or more metallic elements, and X is 1～0.5, and Y is 0.1～0.01, and Z is 10%～0.1%, it is characterized in that comprising the steps:
(1) be 0.48～0.85: 0.10～0.48: 0.99～1.02: 0.49～0.52 in molar ratio: 0.01～0.05 gets manganese source, source of iron, ammonium dihydrogen phosphate, lithium source and doped metallic elements compound respectively; Get mass percent again and be 5～20% carbon source, mix;
(2) adding mass percent is 100～200% dispersants, dry under 60～80 ℃ of temperature under inert gas shielding behind the high speed ball milling;
(3) after fragmentation was ground into dusty material, 450～700 ℃ of high temperature sinterings 4～12 hours, crushing and classification sieved and obtains the iron manganese phosphate lithium/carbon composite material under inert gas shielding.
2. the method for preparing the iron manganese phosphate lithium/carbon composite material according to claim 1 is characterized in that: said manganese source is one or more of manganese monoxide, mangano-manganic oxide, manganese dioxide, manganese carbonate and manganese oxalate.
3. the method for preparing the iron manganese phosphate lithium/carbon composite material according to claim 1 is characterized in that: said source of iron is ferrous oxalate and/or ferrous oxide.
4. the method for preparing the iron manganese phosphate lithium/carbon composite material according to claim 1 is characterized in that: said carbon source is one or more of sucrose, glucose, soluble starch and polyvinyl alcohol.
5. the method for preparing the iron manganese phosphate lithium/carbon composite material according to claim 1 is characterized in that: said dispersant is absolute ethyl alcohol and/or acetone.
6. the method for preparing the iron manganese phosphate lithium/carbon composite material according to claim 1 is characterized in that: said doped metallic elements is one or more of Mg, Al, Ca, Sc, Ti, V, Cr, Fe, Co, Ni, Cu, Zn, Ga, Ge, Sr, Zr, Nb, Mo, Ta, W, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101427804A CN102769131A (en) | 2012-05-10 | 2012-05-10 | Method for preparing manganese phosphate lithium / carbon composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101427804A CN102769131A (en) | 2012-05-10 | 2012-05-10 | Method for preparing manganese phosphate lithium / carbon composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102769131A true CN102769131A (en) | 2012-11-07 |
Family
ID=47096436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101427804A Pending CN102769131A (en) | 2012-05-10 | 2012-05-10 | Method for preparing manganese phosphate lithium / carbon composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102769131A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319368A (en) * | 2014-09-16 | 2015-01-28 | 山东精工电子科技有限公司 | Lithium-ion-cell anode-material ferric-phosphate manganese magnesium lithium and preparation method therefor |
| CN105226273A (en) * | 2014-05-30 | 2016-01-06 | 比亚迪股份有限公司 | A kind of iron manganese phosphate for lithium and preparation method thereof and application |
| CN105702954A (en) * | 2014-11-26 | 2016-06-22 | 比亚迪股份有限公司 | Positive electrode material LiMn1-xFexPO4 / C and preparation method thereof |
| CN105895857A (en) * | 2014-11-24 | 2016-08-24 | 深圳市沃特玛电池有限公司 | Positive plate of high-energy power lithium battery |
| CN105977456A (en) * | 2015-03-12 | 2016-09-28 | 中国科学院成都有机化学有限公司 | Solid-phase synthesis method for preparing LiMn1-xFexPO4/C composite material |
| CN104319368B (en) * | 2014-09-16 | 2017-01-04 | 山东精工电子科技有限公司 | A kind of lithium ion battery positive pole material phosphoric acid ferrimanganic magnesium lithium and preparation method thereof |
| CN106816600A (en) * | 2015-11-30 | 2017-06-09 | 比亚迪股份有限公司 | A kind of iron manganese phosphate for lithium class material and preparation method thereof and cell size and positive pole and lithium battery |
| CN108878846A (en) * | 2018-07-03 | 2018-11-23 | 广东工业大学 | A kind of anode material for lithium-ion batteries, preparation method and lithium ion battery |
| CN109411715A (en) * | 2018-09-14 | 2019-03-01 | 华南理工大学 | A kind of high-performance lithium iron manganese phosphate anode material and preparation method thereof |
| CN110323434A (en) * | 2019-07-11 | 2019-10-11 | 江苏力泰锂能科技有限公司 | Prepare iron manganese phosphate for lithium-carbon composite method and iron manganese phosphate for lithium-carbon composite |
| CN115709976A (en) * | 2022-11-15 | 2023-02-24 | 广东国光电子有限公司 | Modified lithium iron manganese phosphate material, preparation method thereof and battery |
| CN116759560A (en) * | 2023-08-14 | 2023-09-15 | 中创新航科技集团股份有限公司 | Lithium iron manganese phosphate battery |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101997118A (en) * | 2010-11-02 | 2011-03-30 | 天津斯特兰能源科技有限公司 | Lithium ferric manganese phosphate as cathode material of lithium ion battery and preparation method thereof |
| CN102290576A (en) * | 2011-07-23 | 2011-12-21 | 蔡道国 | Multi-doped lithium phosphate anode material, preparation method and lithium ion power cell thereof |
-
2012
- 2012-05-10 CN CN2012101427804A patent/CN102769131A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101997118A (en) * | 2010-11-02 | 2011-03-30 | 天津斯特兰能源科技有限公司 | Lithium ferric manganese phosphate as cathode material of lithium ion battery and preparation method thereof |
| CN102290576A (en) * | 2011-07-23 | 2011-12-21 | 蔡道国 | Multi-doped lithium phosphate anode material, preparation method and lithium ion power cell thereof |
Non-Patent Citations (3)
| Title |
|---|
| KE DU,ET AL.: "Synthesis of LiFe0.4Mn0.6-xNixPO4/C by co-precipitation method and its electrochemical performance", 《J APPL ELECTROCHEM》 * |
| 康彩荣等: "锂离子电池正极材料LiFe1-2xMnxMgxPO4/C的电化学性能研究", 《功能材料》 * |
| 龚强等: "钒改性锂离子电池正极材料LiFeMn0.5PO4/C电化学性能", 《物理化学学报》 * |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105226273A (en) * | 2014-05-30 | 2016-01-06 | 比亚迪股份有限公司 | A kind of iron manganese phosphate for lithium and preparation method thereof and application |
| CN105226273B (en) * | 2014-05-30 | 2018-09-11 | 比亚迪股份有限公司 | A kind of iron manganese phosphate for lithium and preparation method and application |
| CN104319368B (en) * | 2014-09-16 | 2017-01-04 | 山东精工电子科技有限公司 | A kind of lithium ion battery positive pole material phosphoric acid ferrimanganic magnesium lithium and preparation method thereof |
| CN104319368A (en) * | 2014-09-16 | 2015-01-28 | 山东精工电子科技有限公司 | Lithium-ion-cell anode-material ferric-phosphate manganese magnesium lithium and preparation method therefor |
| CN105895857A (en) * | 2014-11-24 | 2016-08-24 | 深圳市沃特玛电池有限公司 | Positive plate of high-energy power lithium battery |
| CN105702954A (en) * | 2014-11-26 | 2016-06-22 | 比亚迪股份有限公司 | Positive electrode material LiMn1-xFexPO4 / C and preparation method thereof |
| CN105977456A (en) * | 2015-03-12 | 2016-09-28 | 中国科学院成都有机化学有限公司 | Solid-phase synthesis method for preparing LiMn1-xFexPO4/C composite material |
| CN106816600B (en) * | 2015-11-30 | 2020-12-25 | 比亚迪股份有限公司 | Lithium iron manganese phosphate material, preparation method thereof, battery slurry, positive electrode and lithium battery |
| CN106816600A (en) * | 2015-11-30 | 2017-06-09 | 比亚迪股份有限公司 | A kind of iron manganese phosphate for lithium class material and preparation method thereof and cell size and positive pole and lithium battery |
| CN108878846A (en) * | 2018-07-03 | 2018-11-23 | 广东工业大学 | A kind of anode material for lithium-ion batteries, preparation method and lithium ion battery |
| CN109411715A (en) * | 2018-09-14 | 2019-03-01 | 华南理工大学 | A kind of high-performance lithium iron manganese phosphate anode material and preparation method thereof |
| CN110323434A (en) * | 2019-07-11 | 2019-10-11 | 江苏力泰锂能科技有限公司 | Prepare iron manganese phosphate for lithium-carbon composite method and iron manganese phosphate for lithium-carbon composite |
| CN110323434B (en) * | 2019-07-11 | 2022-07-22 | 江苏力泰锂能科技有限公司 | Method for preparing lithium iron manganese phosphate-carbon composite material and lithium iron manganese phosphate-carbon composite material |
| CN115709976A (en) * | 2022-11-15 | 2023-02-24 | 广东国光电子有限公司 | Modified lithium iron manganese phosphate material, preparation method thereof and battery |
| CN115709976B (en) * | 2022-11-15 | 2023-11-03 | 广东国光电子有限公司 | Modified lithium iron manganese phosphate material, preparation method thereof and battery |
| CN116759560A (en) * | 2023-08-14 | 2023-09-15 | 中创新航科技集团股份有限公司 | Lithium iron manganese phosphate battery |
| CN116759560B (en) * | 2023-08-14 | 2023-11-10 | 中创新航科技集团股份有限公司 | Lithium iron manganese phosphate battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102769131A (en) | Method for preparing manganese phosphate lithium / carbon composite material | |
| CN101630739B (en) | Preparation method of modified doping lithium ferric phosphate | |
| CN101081696B (en) | Ferric phosphate lithium material for lithium ion powder cell and preparation method thereof | |
| CN101955175B (en) | Industrial preparation method for lithium iron phosphate | |
| Pan et al. | Hydrothermal synthesis of well-dispersed LiMnPO4 plates for lithium ion batteries cathode | |
| CN103956485B (en) | Lithium iron phosphate electrode material of a kind of three-dimensional hierarchical structure and preparation method thereof | |
| CN105375010A (en) | Preparation method of high compaction density lithium ion cathode material | |
| CN102738451A (en) | Modified positive electrode material of lithium ion battery and preparation method of modified positive electrode material | |
| CN103474656A (en) | Preparation method for metal-doped lithium/carbon manganese phosphate composite from manganese phosphate | |
| CN109607505A (en) | A kind of preparation method for the LiFePO4 improving cryogenic property | |
| CN102745663B (en) | Method for preparing lithium iron phosphate material | |
| CN101651205A (en) | Method for preparing lithium vanadium phosphate as lithium ion battery anode material | |
| CN103594708B (en) | One is appraised at the current rate iron-based composite positive pole and preparation method thereof | |
| CN103078113A (en) | Vanadium-titanium ion-codoped lithium iron phosphate material and preparation method thereof | |
| CN102306772A (en) | Method for preparing fluorine sodium ferrous phosphate positive electrode material of mixed ion battery | |
| CN101853936A (en) | Method for preparing lithium ion battery cathode material lithium manganese phosphate | |
| CN105762335A (en) | Method for preparing carbon-clad lithium iron manganese phosphate material through two-step calcination | |
| CN102623705A (en) | Lithium ion battery cathode material LiFePO4/C, and preparation method and application thereof | |
| CN105529457A (en) | Industrial production method for highly compacted 3.7 g/cm3 lithium nickel cobalt manganese oxide NCM523 ternary cathode material | |
| CN105406038A (en) | High-capacity and high-cycle nanoscale lithium ferric manganese phosphate material synthesized by sol-gel method | |
| CN106602059A (en) | Preparation method of water system lithium ion battery material | |
| CN102838102A (en) | Preparation method of lithium iron phosphate monocrystalline nanorods | |
| CN100490221C (en) | Composite doped modified lithium-ion battery anode material and its manufacture method | |
| CN102637854A (en) | Preparation method of polyanion cathode material of lithium ion battery | |
| CN102208624A (en) | Method for preparing carbon-coated LiFePO4 anode material by using low-temperature solid-phase method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121107 |