CN106784676A - Lithium-enriched cathodic material of lithium ion battery of fluorine element doping vario-property and preparation method thereof - Google Patents
Lithium-enriched cathodic material of lithium ion battery of fluorine element doping vario-property and preparation method thereof Download PDFInfo
- Publication number
- CN106784676A CN106784676A CN201611175206.3A CN201611175206A CN106784676A CN 106784676 A CN106784676 A CN 106784676A CN 201611175206 A CN201611175206 A CN 201611175206A CN 106784676 A CN106784676 A CN 106784676A
- Authority
- CN
- China
- Prior art keywords
- lithium
- ion battery
- lithium ion
- property
- cathodic material
- 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
-
- 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
-
- 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
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
- H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
- H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
-
- 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
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
-
- 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
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/582—Halogenides
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Composite Materials (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
The present invention relates to a kind of lithium-enriched cathodic material of lithium ion battery of fluorine element doping vario-property and preparation method thereof, belong to field of lithium ion battery.The positive electrode is Li [Li0.2Ni0.2‑0.5b+ 0.5aCobMn0.6‑0.5b‑0.5a]O2‑aFa；Wherein, 0 ＜ a≤0.1,0≤b≤0.13；Solubilizer is well mixed after lithium salts, nickel salt, manganese salt, cobalt salt, lithium fluoride and combustion adjuvant are ground to form into fine powder, is obtained final product after calcination.Not only specific discharge capacity is high for lithium-enriched cathodic material of lithium ion battery of the invention, and cyclical stability is excellent, high rate performance is excellent, high temperature performance is taken into account, and can meet the requirement of electrokinetic cell.Its doping villiaumite abundance used, cheap and environment-friendly, its synthesis technique is simple and easy to apply, low cost of manufacture, is easy to large-scale industrial production, and degree of being practical is high.
Description
Technical field
The present invention relates to a kind of lithium-enriched cathodic material of lithium ion battery of fluorine element doping vario-property and preparation method thereof, belong to
Field of lithium ion battery.
Background technology
Lithium ion battery has obtained widely should in many fields such as portable electric appts as secondary green battery
With, and start to expand the high capacity cell markets such as electric automobile.The main flow positive electrode that current lithium rechargeable battery is used is still
It is so LiCoO2But, LiCoO2Capacity utilization is low, high cost, and environmental pollution is serious, and these shortcomings force people to seek
It for product.In recent years, lithium-rich anode material Li [LixNiyMnzCo1-x-y-z]O2It is cheap due to high with relative capacity
Advantage and turn into study hotspot.
Li[LixNiyMnzCo1-x-y-z]O2Mainly by Li2MnO3With stratified material LiMO2(the transition group such as M=Ni, Mn, Co
Metallic element) formed solid solution, it is also possible to write as xLi2MnO3·(1-x)LiMO2.The rich lithium material has one in 4.5V or so
Individual de- lithium with deoxidation platform, the Li in this de- lithium deoxidation process2MnO3Component is activated, such that it is able in electric discharge
During show specific capacity higher, while Li2MnO3Component can also play stabilized electrodes material knot during discharge and recharge
The effect of structure.
But such lithium-rich anode material there is also the problem that initial stage specific capacity declines rapid and high rate performance difference.Chi
Li [the Li that Hoon Song et al. are synthesized with sol-gel process0.2Ni0.1Co0.2Mn0.5]O2, in 2-4.8V voltage ranges during normal temperature
Interior, the discharge capacity first under 0.2C electric currents is 274.13mAh/g, but the capability retention after 20 circulations is only
83.9%.Wu et al. once uses AlPO4Cladding Li1.2Mn0.54Co0.13Ni0.13O2, but this clad can only also improve storehouse first
Logical sequence efficiency and discharge capacity, do not improve all the time to high rate performance.
The content of the invention
Decline asking for rapid and high rate performance difference present invention aim to address existing lithium-rich anode material initial stage specific capacity
A kind of topic, there is provided high-capacity lithium ion cell lithium-rich anode material and preparation method thereof.
According to the present invention provide technical scheme, a kind of lithium-enriched cathodic material of lithium ion battery of fluorine element doping vario-property,
The positive electrode is Li [Li0.2Ni0.2-0.5b+0.5aCobMn0.6-0.5b-0.5a]O2-aFa；Wherein, 0 ＜ a≤0.1,0≤b≤
0.13；
Solubilizer mixes equal after lithium salts, nickel salt, manganese salt, cobalt salt, lithium fluoride and combustion adjuvant are ground to form into fine powder in molar ratio
It is even, the lithium-enriched cathodic material of lithium ion battery of product chlorine element doping vario-property is obtained final product after calcination.
A kind of preparation method of the lithium-enriched cathodic material of lithium ion battery of chlorine element doping vario-property, step is as follows：
(1) mix：By lithium salts, nickel salt, manganese salt, cobalt salt, lithium fluoride and combustion adjuvant in molar ratio 1.21~1.26: 0.13~
Weigh at 0.25: 0.49~0.6: 0~0.13: 0~0.1: 0.8, levigate rear well mixed in mortar respectively, adds 3~5mL
Solvent, continues to grind, until cement paste of the mixture in uniform and smooth；
(2) calcination：Take the cement paste mixture obtained by step (1) to be dried 11~13 hours in 110~130 DEG C, before obtaining
Drive body and cool down grinding after 5~8 hours in 450~550 DEG C of pre-burnings, then calcining is divided after 12~20 hours at 850~950 DEG C
Minor is Li [Li0.2Ni0.2-0.5b+0.5aCobMn0.6-0.5b-0.5a]O2-aFaLithium-enriched cathodic material of lithium ion battery；Wherein, 0 ＜ a
≤ 0.1,0≤b≤0.13.
The lithium salts is LiNO3、CH3At least one in COOLi and LiOH, the nickel salt is Ni (NO3)2And Ni
(CH3COO)2In the mixture of one or more.
The manganese salt is Mn (NO3)2With Mn (CH3COO)2In one or two mixture.
The cobalt salt is Co (NO3)2With Co (CH3COO)2In one or two mixture.
The villaumite is LiF, NiF2、MnF2And CoF2In the mixture of one or more.
The combustion adjuvant is the mixture of one or more in tartaric acid, sucrose, urea, citric acid and oxalic acid.
The solvent is deionized water and/or ethanol.
The invention has the advantages that：Not only specific discharge capacity is high for lithium-enriched cathodic material of lithium ion battery of the invention, and
And cyclical stability is excellent, high rate performance is excellent, high temperature performance is taken into account, and can meet the requirement of electrokinetic cell.Its doping is used
Villiaumite abundance, cheap and environment-friendly, its synthesis technique is simple and easy to apply, and low cost of manufacture is easy to large-scale industry
Metaplasia is produced, and degree of being practical is high.
Brief description of the drawings
Fig. 1 is positive electrode Li [Li prepared by embodiment 10.2Ni0.155Co0.13Mn0.515]O1.95F0.05XRD phenograms.
Fig. 2 is Li1.2Mn0.54Ni0.13Co0.13O2With the positive electrode of embodiment 1, the circulation at 15 DEG C under 0.2C electric currents
Curve map.
Fig. 3 is Li1.2Mn0.54Ni0.13Co0.13O2With the positive electrode of embodiment 1, the following under different multiplying at 55 DEG C
Ring figure.
Specific embodiment
Technical scheme is described further with reference to embodiment.
Embodiment 1
By LiNO3、Ni(NO3)2、Mn(CH3COO)2、Co(NO3)2, LiF, citric acid mol ratio be 1.21: 0.155:
0.515: 0.13: 0.05: 0.8 consumption is weighed, levigate rear well mixed in mortar respectively, adds 5mL deionized waters, after
Continuous grinding, until cement paste of the mixture in uniform and smooth.Then the mixture is dried 12 hours at 120 DEG C, obtains forerunner
Body, presoma first at 500 DEG C after pre-burning 6 hours, cooling grinding, then calcining is cooled down after 20 hours at 850 DEG C, obtains Li
[Li0.2Ni0.155Co0.13Mn0.515]O1.95F0.05Positive electrode.
By LiNO3、Ni(NO3)2、Mn(CH3COO)2、Co(NO3)2, citric acid mol ratio be 1.26: 0.13: 0.54: 0.13
: 0.8 consumption is weighed, then by as described above the step of can synthesis Li1.2Mn0.54Ni0.13Co0.13O2。
Embodiment 2
By LiNO3、Ni(NO3)2、Mn(CH3COO)2、Co(NO3)2, LiF, citric acid mol ratio be 1.23: 0.145:
0.525: 0.13: 0.03: 0.8 consumption is weighed, levigate rear well mixed in mortar respectively, adds 5mL deionized waters, after
Continuous grinding, until cement paste of the mixture in uniform and smooth.Then the mixture is dried 12 hours at 120 DEG C, obtains forerunner
Body, presoma first at 500 DEG C after pre-burning 6 hours, cooling grinding, then calcining is cooled down after 20 hours at 850 DEG C, obtains Li
[Li0.2Ni0.145Co0.13Mn0.525]O1.97F0.03Positive electrode.
Embodiment 3
By LiNO3、Ni(NO3)2、Mn(CH3COO)2、Co(CH3COO)2, LiF, citric acid mol ratio be 1.16: 0.18:
0.49: 0.13: 0.1: 0.8 consumption is weighed, levigate rear well mixed in mortar respectively, adds 5mL deionized waters, is continued
Grinding, until cement paste of the mixture in uniform and smooth.Then the mixture is dried 12 hours at 120 DEG C, obtains presoma,
Presoma first at 550 DEG C after pre-burning 5 hours, cooling grinding, then calcining is cooled down after 20 hours at 850 DEG C, obtains Li
[Li0.2Ni0.18Co0.13Mn0.49]O1.9F0.1Positive electrode.
Embodiment 4
By LiNO3、Ni(NO3)2、Mn(CH3COO)2, LiF, citric acid mol ratio be 1.21: 0.225: 0.575: 0.05:
0.8 consumption is weighed, levigate rear well mixed in mortar respectively, adds 3mL deionized waters, continues to grind, until mixing
Thing is in the cement paste of uniform and smooth.Then the mixture is dried 12 hours at 120 DEG C, obtains presoma, presoma is first 450
At DEG C after pre-burning 8 hours, cooling grinding, then calcining is cooled down after 12 hours at 950 DEG C, obtains Li [Li0.2Ni0.225Mn0.575]
O1.95F0.05Positive electrode.
By LiNO3、Ni(NO3)2、Mn(CH3COO)2, citric acid mol ratio weigh for 1.26: 0.2: 0.6: 0.8 consumption,
The step of pressing as described above again can synthesis Li [Li0.2Ni0.2Mn0.6]O2。
Embodiment 5
By LiOH, Ni (NO3)2、Mn(CH3COO)2、Co(CH3COO)2、CoF2, citric acid mol ratio be 1.26: 0.185:
0.535: 0.055: 0.025: 0.8 consumption is weighed, levigate rear well mixed in mortar respectively, adds 4mL ethanol, is continued
Grinding, until cement paste of the mixture in uniform and smooth.Then the mixture is dried 12 hours at 120 DEG C, obtains presoma,
Presoma first at 500 DEG C after pre-burning 7 hours, cooling grinding, then calcining is cooled down after 15 hours at 900 DEG C, obtains Li
[Li0.2Ni0.185Mn0.535Co0.08]O1.95F0.05Positive electrode.
By LiOH, Ni (NO3)2、Mn(CH3COO)2、Co(CH3COO)2, citric acid mol ratio be 1.26: 0.16: 0.56:
0.08: 0.8 consumption is weighed, then by as described above the step of can synthesis Li [Li0.2Ni0.16Mn0.56Co0.08]O2。
As shown in figure 1, XRD characterizes explanation Li [Li0.2Ni0.155Co0.13Mn0.515]O1.95F0.05With typical stratiform six
Square structure is α-NaFeO2Configuration, space group is R-3m, without the other miscellaneous peaks of appearance in figure.
Application Example 1
Positive electrode prepared by embodiment 1-5 is in mass ratio 8: 1: 1 consumption with carbon black, binding agent PVDF in N- first
Mixing is made into slurry in base pyrrolidone (NMP), is then uniformly coated in aluminum foil current collector slurry, is dried at 80 DEG C,
18MPa pressure lower sheetings, as positive pole, lithium metal is used as negative pole, and Celgard2325 makees barrier film, and electrolyte is 1mol/L's
LiPF6Solution (solvent is ethylene carbonate: dimethyl carbonate volume ratio is 1: 1 mixed liquor), in the glove box of argon gas atmosphere
It is assembled into CR2032 type button cells.The CR2032 types button cell of assembling carries out table with charge-discharge test instrument LAND-CT2001A
Levy, it is 2~4.8V that discharge and recharge is interval.
It should be noted that during the specific implementation present invention, because Li elements are forged in high temperature in the lithium-rich anode material that obtains
It is volatile during burning, 5% or so Li losses are had, therefore the actual mole dosage of lithium salts is high compared with theoretical amount by 5% or so.
As shown in table 1,55 DEG C of temperature is passed through Electrochemical Characterization result under 1C electric currents under the 0.2C electric currents of different materials
The discharge capacity crossed after 50 circulations is as shown in table 2.
Li1.2Mn0.54Ni0.13Co0.13O2With the positive electrode of embodiment 1, the cyclic curve at 15 DEG C under 0.2C electric currents
Figure is as shown in Figure 1；Li1.2Mn0.54Ni0.13Co0.13O2With the positive electrode of embodiment 1, the following under different multiplying at 55 DEG C
Ring figure is as shown in Figure 2；Li1.2Mn0.54Ni0.13Co0.13O2With the positive electrode of embodiment 1, at 55 DEG C under different multiplying
Circulation figure is as shown in Figure 3.
Table 1 under 0.2C electric currents, the Electrochemical Characterization result such as following table of different materials：
55 DEG C of 2 temperature of table, the discharge capacity under 1C electric currents after 50 circulate is as shown in the table：
| Material | Discharge capacity (mAh/g) |
| Li1.2Mn0 54Ni0 13Co0 13O2 | 166.6 |
| Embodiment 1 | 200.3 |
| Embodiment 2 | 191.7 |
| Embodiment 3 | 188.6 |
| Li1 2Ni0 2Mn0 6O2 | 155.7 |
| Embodiment 4 | 172.6 |
| Li[Li0 2Ni0 16Mn0 56Co0 08]O2 | 160 |
| Embodiment 5 | 181.8 |
Claims (8)
1. a kind of lithium-enriched cathodic material of lithium ion battery of fluorine element doping vario-property, it is characterized in that：The positive electrode is Li
[Li0.2Ni0.2-0.5b+0.5aCobMn0.6-0.5b-0.5a]O2-aFa；Wherein, 0 ＜ a≤0.1,0≤b≤0.13；
Solubilizer is well mixed after lithium salts, nickel salt, manganese salt, cobalt salt, lithium fluoride and combustion adjuvant are ground to form into fine powder in molar ratio, burns
The lithium-enriched cathodic material of lithium ion battery of product fluorine element doping vario-property is obtained final product after burning.
2. a kind of preparation method of the lithium-enriched cathodic material of lithium ion battery of fluorine element doping vario-property, it is characterized in that step is as follows：
(1) mix：By lithium salts, nickel salt, manganese salt, cobalt salt, lithium fluoride and combustion adjuvant in molar ratio 1.21~1.26: 0.13~0.25
: weigh at 0.49~0.6: 0~0.13: 0~0.1: 0.8, levigate rear well mixed in mortar respectively, adds 3~5mL molten
Agent, continues to grind, until cement paste of the mixture in uniform and smooth；
(2) calcination：Take the cement paste mixture obtained by step (1) to be dried 11~13 hours in 110~130 DEG C, the presoma for obtaining
Grinding is cooled down after 5~8 hours in 450~550 DEG C of pre-burnings, then calcining obtains molecular formula after 12~20 hours at 850~950 DEG C
It is Li [Li0.2Ni0.2-0.5b+0.5aCobMn0.6-0.5b-0.5a]O2-aFaProduct lithium-enriched cathodic material of lithium ion battery；Wherein, 0 ＜ a
≤ 0.1,0≤b≤0.13.
3. the preparation method of the lithium-enriched cathodic material of lithium ion battery of fluorine element doping vario-property as claimed in claim 2, its feature
It is：The lithium salts is LiNO3、CH3At least one in COOLi and LiOH, the nickel salt is Ni (NO3)2With Ni (CH3COO)2In
The mixture of one or more.
4. the preparation method of the lithium-enriched cathodic material of lithium ion battery of fluorine element doping vario-property as claimed in claim 2, its feature
It is：The manganese salt is Mn (NO3)2With Mn (CH3COO)2In one or two mixture.
5. the preparation method of the lithium-enriched cathodic material of lithium ion battery of fluorine element doping vario-property as claimed in claim 2, its feature
It is：The cobalt salt is Co (NO3)2With Co (CH3COO)2In one or two mixture.
6. the preparation method of the lithium-enriched cathodic material of lithium ion battery of fluorine element doping vario-property as claimed in claim 2, its feature
It is：The villaumite is LiF, NiF2、MnF2And CoF2In the mixture of one or more.
7. the preparation method of the lithium-enriched cathodic material of lithium ion battery of fluorine element doping vario-property as claimed in claim 2, its feature
It is：The combustion adjuvant is the mixture of one or more in tartaric acid, urea, sucrose, citric acid and oxalic acid.
8. the preparation method of the lithium-enriched cathodic material of lithium ion battery of fluorine element doping vario-property as claimed in claim 2, its feature
It is：The solvent is deionized water and/or ethanol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611175206.3A CN106784676A (en) | 2016-12-16 | 2016-12-16 | Lithium-enriched cathodic material of lithium ion battery of fluorine element doping vario-property and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611175206.3A CN106784676A (en) | 2016-12-16 | 2016-12-16 | Lithium-enriched cathodic material of lithium ion battery of fluorine element doping vario-property and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106784676A true CN106784676A (en) | 2017-05-31 |
Family
ID=58889616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611175206.3A Pending CN106784676A (en) | 2016-12-16 | 2016-12-16 | Lithium-enriched cathodic material of lithium ion battery of fluorine element doping vario-property and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106784676A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112599783A (en) * | 2021-03-05 | 2021-04-02 | 中南大学 | Selenium-doped lithium-rich manganese-based positive electrode material and preparation method and application thereof |
| CN113555538A (en) * | 2021-06-21 | 2021-10-26 | 深圳市德方纳米科技股份有限公司 | Carbon-free high-capacity positive electrode material and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1855584A (en) * | 2005-04-28 | 2006-11-01 | 三星Sdi株式会社 | Lithium secondary battery |
| CN102723472A (en) * | 2012-06-27 | 2012-10-10 | 江南大学 | Chlorine-doped modified lithium ion battery lithium-rich cathode material and preparation method thereof |
| CN103441265A (en) * | 2013-09-24 | 2013-12-11 | 上海空间电源研究所 | Co-doped lithium-rich composite anode material and preparation method thereof |
| CN105895903A (en) * | 2014-12-25 | 2016-08-24 | 江南大学 | Synthesis of modified lithium-rich layered positive electrode material doped with anions of F<->, Cl<-> and Br<-> |
-
2016
- 2016-12-16 CN CN201611175206.3A patent/CN106784676A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1855584A (en) * | 2005-04-28 | 2006-11-01 | 三星Sdi株式会社 | Lithium secondary battery |
| CN102723472A (en) * | 2012-06-27 | 2012-10-10 | 江南大学 | Chlorine-doped modified lithium ion battery lithium-rich cathode material and preparation method thereof |
| CN103441265A (en) * | 2013-09-24 | 2013-12-11 | 上海空间电源研究所 | Co-doped lithium-rich composite anode material and preparation method thereof |
| CN105895903A (en) * | 2014-12-25 | 2016-08-24 | 江南大学 | Synthesis of modified lithium-rich layered positive electrode material doped with anions of F<->, Cl<-> and Br<-> |
Non-Patent Citations (2)
| Title |
|---|
| 杜运: ""高性能锂离子电池材料的制备与性能研究"", 《中国优秀硕士学位论文全文数据库-工程科技Ⅱ辑》 * |
| 梁波编著: "《锂离子电池安全性能研究》", 31 December 2014, 长沙：中南大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112599783A (en) * | 2021-03-05 | 2021-04-02 | 中南大学 | Selenium-doped lithium-rich manganese-based positive electrode material and preparation method and application thereof |
| CN113555538A (en) * | 2021-06-21 | 2021-10-26 | 深圳市德方纳米科技股份有限公司 | Carbon-free high-capacity positive electrode material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102916169B (en) | Lithium-rich manganese-based anode material and method for manufacturing same | |
| CN103227323B (en) | Preparation method of positive pole material (spinel type lithium nickel manganese oxide) of high-voltage lithium ion battery | |
| CN102738451A (en) | Modified positive electrode material of lithium ion battery and preparation method of modified positive electrode material | |
| CN103078100B (en) | A kind of lithium sodium manganate cathode material and preparation method thereof | |
| CN105552360A (en) | Modified lithium nickel cobalt manganese oxide cathode material and preparation method thereof | |
| CN109904432A (en) | A kind of nickelic tertiary cathode material of W doping vario-property | |
| CN105185954A (en) | LiAlO2 coated LiNi1-xCoxO2 lithium-ion battery positive electrode material and preparation method thereof | |
| CN105958054A (en) | Method for lanthanum phosphate coated lithium ion battery cathode material nickel cobalt lithium manganate | |
| CN108682844A (en) | A kind of preparation method of lithium ion battery mangaic acid lithium anode material | |
| CN108448109A (en) | A kind of stratiform lithium-rich manganese-based anode material and preparation method thereof | |
| WO2018121102A1 (en) | Method for preparing high-voltage modified lithium nickel manganese oxide anode material | |
| CN104112849A (en) | Light metal element-doped ternary lithium ion battery positive electrode material and synthesis method thereof | |
| CN102956883A (en) | AnodePositive electrode material of lithium ion battery with porous laminated structure and preparation method thereof | |
| CN104409685A (en) | Lithium ion cell cathode material with core shell structure and preparation method thereof | |
| CN102723472B (en) | Chlorine-doped modified lithium ion battery lithium-rich cathode material and preparation method thereof | |
| CN103311540A (en) | Lithium ion battery anode material and preparation method thereof | |
| CN109904425A (en) | A kind of miscellaneous lithium-rich manganese-based composite material of cation-anion co-doping and preparation method | |
| CN102832381A (en) | Preparation method of high-voltage cathode material Lil+xMn3/2-yNil/2-zMy+zO4 of lithium ion battery with long service life | |
| CN102403496B (en) | Composite cathode material of high-content lithium-ion battery and synthesis method for composite cathode material | |
| CN105185981B (en) | A kind of LiNixMn2-xO4The preparation method of positive electrode | |
| CN100530779C (en) | Preparing method for spinel potassium manganate as lithium ion battery anode of electric vehicle | |
| CN103208620A (en) | Rare-earth-doped lithium-rich layered lithium ion battery cathode material and preparation method thereof | |
| CN106784676A (en) | Lithium-enriched cathodic material of lithium ion battery of fluorine element doping vario-property and preparation method thereof | |
| CN104961161A (en) | Highly-stable lithium manganate positive electrode material and preparation method thereof | |
| CN107834054B (en) | Preparation method of lithium nickel manganese oxide-graphene composite material for lithium ion battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |