CN102903916A - Preparation method of nickel-doped sodium ferrous fluorophosphate cathode material - Google Patents
Preparation method of nickel-doped sodium ferrous fluorophosphate cathode material Download PDFInfo
- Publication number
- CN102903916A CN102903916A CN2012103798137A CN201210379813A CN102903916A CN 102903916 A CN102903916 A CN 102903916A CN 2012103798137 A CN2012103798137 A CN 2012103798137A CN 201210379813 A CN201210379813 A CN 201210379813A CN 102903916 A CN102903916 A CN 102903916A
- Authority
- CN
- China
- Prior art keywords
- nickel
- cathode material
- preparation
- sodium
- positive electrode
- 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
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 relates to a manufacturing technology of lithium ion batteries cathode materials, especially relates to a preparation method of a nickel-doped sodium ferrous fluorophosphate cathode material, comprising the following steps: a, weighing iron nitrate nonahydrate, sodium dihydrogen phosphate, sodium fluoride, glucose and nickel hydroxide according to a molar ratio of Fe:PO4<3->:F:C:Ni being 0.95:2:1:1:1:0.05, dissolving the weighed ingredients in anhydrous ethanol, and conducting ball milling in an agate jar for 3-4h; b, dissolving the milled product in anhydrous ethanol, and conducting vacuum drying at 70-85 DEG C; c, under the protection of inert gas, heating up to 580-600 DEG C, preserving the heat for 9-10h, then taking out the product and milling to obtain the nickel-doped sodium ferrous fluorophosphate cathode material. According to the invention, doping modification is carried out on the sodium ferrous fluorophosphate cathode material by solid phase method, thus the capacity and cycle performance of the cathode material is effectively raised.
Description
Technical field
The present invention relates to the manufacturing technology of anode material for lithium-ion batteries, relate to a kind of preparation method of nickel doped with fluorine ferrous phosphate sodium positive electrode.
Background technology
The fluorophosphoric acid Naferon is known anode material for lithium-ion batteries, as anode material for lithium-ion batteries, there is the relatively poor defective of cyclicity, with it as anode material for lithium-ion batteries, usually the off-capacity 40% that circulates at normal temperatures 100 times can not satisfy the needs of high-performance lithium battery.
Summary of the invention
Technical problem to be solved by this invention is that providing a kind of can carry out modification to traditional fluorophosphoric acid Naferon positive electrode, improves the preparation method of the nickel doped with fluorine ferrous phosphate sodium positive electrode of circulating battery.
The preparation method of nickel doped with fluorine ferrous phosphate sodium positive electrode of the present invention may further comprise the steps:
A. press Fe:Na:PO
4 3-: the mol ratio of F:C:Ni=0.95:2:1:1:1:0.05 takes by weighing nine water ferric nitrates, sodium dihydrogen phosphate, sodium fluoride, glucose and nickel hydroxide and is dissolved in absolute ethyl alcohol, in the agate tank ball milling 3-4 hour;
B. the product behind the ball milling is dissolved in the absolute ethyl alcohol, 70-85 ℃ of lower vacuumize;
C. under inert gas shielding, be warming up to 580-600 ℃, take out after 9-10 hour in insulation and grind, make nickel doped with fluorine ferrous phosphate sodium positive electrode.
Among the above-mentioned steps c, heating rate is 5 ℃/min in the heating process.
The present invention carries out doping vario-property by solid phase method to fluorophosphoric acid Naferon positive electrode, Effective Raise capacity and the cycle performance of positive electrode.
Embodiment
The step of the embodiment of the inventive method is as follows:
Press Fe:Na:PO
4 3-: the mol ratio of F:C:Ni=0.95:2:1:1:1:0.05 takes by weighing nine water ferric nitrates, sodium dihydrogen phosphate, sodium fluoride, glucose and nickel hydroxide and is dissolved in absolute ethyl alcohol, and ball milling is 4 hours in the agate tank; Product is dissolved in the absolute ethyl alcohol, grinds after 80 ℃ of lower vacuumizes, then under inert gas shielding, be raised to 600 ℃ with the heating rate of 5 ℃/min, after 600 ℃ of lower insulations were taken out after 10 hours, grind, make nickel doped with fluorine ferrous phosphate sodium positive electrode.The material property that obtains is as follows:
Discharge capacity discharge capacity 〉=120mAh/g first first;
Efficient 〉=85% first;
Circulation is 100 times under the normal temperature, capability retention＞80%;
50 ℃ of lower circulations of high temperature 100 times, capability retention＞60%.
Claims (2)
1. the preparation method of a nickel doped with fluorine ferrous phosphate sodium positive electrode is characterized in that: may further comprise the steps,
A. press Fe:Na:PO
4 3-: the mol ratio of F:C:Ni=0.95:2:1:1:1:0.05 takes by weighing nine water ferric nitrates, sodium dihydrogen phosphate, sodium fluoride, glucose and nickel hydroxide and is dissolved in absolute ethyl alcohol, in the agate tank ball milling 3-4 hour;
B. the product behind the ball milling is dissolved in the absolute ethyl alcohol, 70-85 ℃ of lower vacuumize;
C. under inert gas shielding, be warming up to 580-600 ℃, take out after 9-10 hour in insulation and grind, make nickel doped with fluorine ferrous phosphate sodium positive electrode.
2. the preparation method of nickel doped with fluorine ferrous phosphate sodium positive electrode according to claim 1, it is characterized in that: among the step c, heating rate is 5 ℃/min in the heating process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103798137A CN102903916A (en) | 2012-10-09 | 2012-10-09 | Preparation method of nickel-doped sodium ferrous fluorophosphate cathode material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103798137A CN102903916A (en) | 2012-10-09 | 2012-10-09 | Preparation method of nickel-doped sodium ferrous fluorophosphate cathode material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102903916A true CN102903916A (en) | 2013-01-30 |
Family
ID=47576056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103798137A Pending CN102903916A (en) | 2012-10-09 | 2012-10-09 | Preparation method of nickel-doped sodium ferrous fluorophosphate cathode material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102903916A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108832112A (en) * | 2018-06-26 | 2018-11-16 | 东北大学秦皇岛分校 | A kind of preparation method of cobalt doped fluorophosphoric acid Naferon positive electrode |
| CN110931781A (en) * | 2019-10-14 | 2020-03-27 | 桂林理工大学 | Preparation method and application of biomass carbon/sodium iron fluorophosphate composite material |
| WO2021036791A1 (en) * | 2019-08-28 | 2021-03-04 | 宁德时代新能源科技股份有限公司 | Positive electrode material for sodium ion battery, preparation method therefor and related sodium ion battery, battery module, battery pack and device thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102126714A (en) * | 2011-01-12 | 2011-07-20 | 山西泰众新能源有限公司 | Preparation method of lithium iron phosphate with high tap density |
| CN102509789A (en) * | 2011-10-17 | 2012-06-20 | 中南大学 | Method for preparing positive material fluorine-doped sodium vanadium phosphate of sodium-containing lithium ion battery |
-
2012
- 2012-10-09 CN CN2012103798137A patent/CN102903916A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102126714A (en) * | 2011-01-12 | 2011-07-20 | 山西泰众新能源有限公司 | Preparation method of lithium iron phosphate with high tap density |
| CN102509789A (en) * | 2011-10-17 | 2012-06-20 | 中南大学 | Method for preparing positive material fluorine-doped sodium vanadium phosphate of sodium-containing lithium ion battery |
Non-Patent Citations (1)
| Title |
|---|
| BRIAN L. ELLIS ET AL: "Crystal Structure and Electrochemical Properties of A2MPO4F Fluorophosphates (A＝Na，Li；M＝Fe，Mn，Co，Ni)", 《CHEMISTRY OF MATERIALS》, vol. 22, no. 3, 13 November 2009 (2009-11-13) * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108832112A (en) * | 2018-06-26 | 2018-11-16 | 东北大学秦皇岛分校 | A kind of preparation method of cobalt doped fluorophosphoric acid Naferon positive electrode |
| CN108832112B (en) * | 2018-06-26 | 2020-07-03 | 东北大学秦皇岛分校 | Preparation method of cobalt-doped sodium ferrous fluorophosphate cathode material |
| WO2021036791A1 (en) * | 2019-08-28 | 2021-03-04 | 宁德时代新能源科技股份有限公司 | Positive electrode material for sodium ion battery, preparation method therefor and related sodium ion battery, battery module, battery pack and device thereof |
| EP3968410A4 (en) * | 2019-08-28 | 2022-08-17 | Contemporary Amperex Technology Co., Limited | Positive electrode material for sodium ion battery, preparation method therefor and related sodium ion battery, battery module, battery pack and device thereof |
| CN110931781A (en) * | 2019-10-14 | 2020-03-27 | 桂林理工大学 | Preparation method and application of biomass carbon/sodium iron fluorophosphate composite material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105552324A (en) | Preparation method for lithium iron phosphate coated lithium nickel cobalt manganese composite material | |
| CN103165886A (en) | Preparation method for lithium iron phosphate materials with high tap density | |
| CN103280579B (en) | High-performance lithium ion battery cathode material lithium ferric manganese phosphate and preparation method thereof | |
| CN105789606A (en) | Preparation method of lithium titanate coated lithium ion battery nickel cobalt manganese cathode material | |
| CN102583300A (en) | Fluorine and vanadium ion-doped lithium iron phosphate material and preparation method thereof | |
| CN103367746A (en) | Multi-ion-doped carbon-coated lithium iron phosphate battery material and preparation method thereof | |
| CN102723494A (en) | Doped and modified high-temperature lithium manganate cathode material and preparation method thereof | |
| CN104409732A (en) | Preparation method for lithium iron phosphate material by adopting mixed iron source | |
| CN103956491B (en) | A kind of lithium ion battery positive pole material phosphoric acid ferrimanganic lithium and preparation method thereof | |
| CN102354752B (en) | Method used for preparing lithium ion battery positive pole material fluophosphate vanadium lithium | |
| CN111916703A (en) | In-situ synthesis method of lithium iron manganese phosphate/carbon @ graphene composite material | |
| CN103972506A (en) | Preparation method of nano sheet negative electrode material, phosphoric acid oxygen vanadium, of lithium ion battery | |
| CN102903916A (en) | Preparation method of nickel-doped sodium ferrous fluorophosphate cathode material | |
| CN103746108A (en) | Preparation method of lithium ion battery positive electrode material doped with hollow nickel lithium manganate structure | |
| CN104600262A (en) | LiFePO4/C composite positive electrode material and preparation method thereof | |
| CN101369659B (en) | Novel lithium iron phosphate anode material used for lithium ion battery and method of manufacturing the same | |
| CN102593462A (en) | Method for preparing lithium iron phosphate by coating carbon | |
| CN102368555B (en) | Method for manufacturing anode material of rare-earth-yttrium-doped lithium manganese oxide battery | |
| CN103855391A (en) | Fluorine lithium iron phosphate/graphene composite and preparation method and application thereof | |
| CN102126715A (en) | Preparation method of spherical lithium iron phosphate | |
| CN102569814A (en) | Rare-earth type lithium iron phosphate serving as cathode material of lithium secondary battery and preparation method thereof | |
| CN101456549A (en) | Method for preparing lithium ionic cell anode material lithium vanadium phosphate by hydro-thermal synthesis reaction | |
| CN105655567B (en) | Phosphoric acid vanadium lithium/cobalt-lithium oxide composite material and preparation method | |
| CN101293641B (en) | Method for preparing chlorine ion doped iron lithium phosphate powder body | |
| CN103117385B (en) | A kind of defect sturcture LiFePO4The rich lithium layer-layer positive electrode of surface modification and preparation 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: 20130130 |