CN110289407A - A kind of carbon coating cobalt-doping zinc oxide nano material for lithium ion battery - Google Patents
A kind of carbon coating cobalt-doping zinc oxide nano material for lithium ion battery Download PDFInfo
- Publication number
- CN110289407A CN110289407A CN201910559155.1A CN201910559155A CN110289407A CN 110289407 A CN110289407 A CN 110289407A CN 201910559155 A CN201910559155 A CN 201910559155A CN 110289407 A CN110289407 A CN 110289407A
- Authority
- CN
- China
- Prior art keywords
- cobalt
- zinc oxide
- carbon coating
- lithium ion
- ion battery
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- 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
-
- 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
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
-
- 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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/625—Carbon or graphite
-
- 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)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Composite Materials (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The present invention discloses a kind of carbon coating cobalt-doping zinc oxide nano material and preparation method thereof for lithium ion battery.The carbon coating cobalt-doping zinc oxide nano material is nano particle, in irregular shape, and partial size is loose disorderly arranged between 200-500nm, particle, and is core-shell structure, and cobalt-doped zinc oxide is core, and agraphitic carbon is shell.The carbon coating cobalt-doping zinc oxide nano material is obtained by hydrothermal synthesis reaction formation MOF persursor material, high temperature cabonization MOF material, preparation is simple, energy saving, is suitble to industrialized production.It is assembled into battery using lithium piece as cathode, in 100mA g‑1Current density under charge and discharge cycles 170 enclose after show 368 mAh g‑1Height ratio capacity, and stable cycle performance.
Description
Technical field
The present invention relates to the fields of lithium ion battery negative material, in particular to a kind of to be used for lithium ion battery negative material
Nano zinc oxide material and preparation method thereof.
Background technique
With the reduction of non-renewable energy resources reserves and the reinforcement of environmental protection policy, traditional energy receives certain influence,
New energy receives the attention of countries in the world.Lithium ion battery has energy density height, work electricity as one of new energy
Press height, memory-less effect, it is environmentally protective the advantages that, by academic and industrial circle extensive concern.
Lithium ion battery is mainly made of four cathode, anode, diaphragm and electrolyte parts, and wherein negative electrode material is to influence
One of the central factor of lithium ion battery chemical property.Performance more preferably negative electrode material how is obtained, is that scientific research personnel does one's utmost
The problem captured.In the way of storing up lithium, lithium ion battery negative material can be broadly divided into three kinds.First, Intercalation material, leads to
It crosses for lithium ion to be embedded in its layer structure and carries out storage lithium, such as carbon material, titanate, advantage is stable cycle performance, but
Specific capacity is smaller.Second, alloying negative electrode material, Si, Sn, Sb etc. form alloy with lithium ion in charge and discharge process and obtain
Higher specific capacity is obtained, but volume expansion is serious in charge and discharge process, cyclical stability is poor.Third, conversion reaction negative electrode material,
Such as metal oxide, nitride, compound, phosphide have lower oxidation-reduction potential, can provide for lithium ion battery
Higher operating voltage, but cyclical stability is poor.The above material respectively has advantage and disadvantage, but different materials can take length by compound
It mends short.Currently, the specific capacity of lithium ion battery is lower, cyclical stability is poor, this is to restrict its widely applied crucial and bottle
Neck ring section.Thus looking for a kind of combination electrode material with height ratio capacity, long circulation life becomes people's research and industrialization
Target.
Transition metal oxide is applied in fields such as catalytic degradation, energy storage, gas sensings, currently, people
Application study of the metal oxide in li-ion electrode materials has been unfolded.Zinc oxide and nickel oxide are two kinds of cheap and rings
The transition metal oxide of guarantor has high specific capacity, but conductivity is lower, can be along with by a relatively large margin in charge and discharge process
Volume change keeps its cyclical stability poor.Carbon material is common lithium ion battery negative material, steady with excellent circulation
It is qualitative, but specific capacity is low.
Metal-organic frame (MOF) is a series of materials rapidly developed, is widely used to energy storage, catalysis etc.
Field.This patent provides a kind of method that Metal-organic frame simply carbonization is prepared electrode material, using hydro-thermal and carbon
The method of change synthesizes carbon coating cobalt-doping zinc oxide nano material, and the carbon-coating cladding of nano grain surface improves lithium ion and electricity
The diffusion rate of son, and inhibit volume change of the cobalt-doped zinc oxide material in charge and discharge process to a certain extent, there is height
Specific capacity and good cyclical stability, be a kind of good lithium ion battery negative material.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of carbon coatings for negative electrode of lithium ion battery to mix cobalt oxidation
Zinc nano material and preparation method thereof, the lithium ion battery negative material that the present invention is prepared is with high specific capacity and well
Cyclical stability, preparation method is simple, does not need complex device, low in cost, is conducive to industrialization.
The present invention provides a kind of carbon coating cobalt-doping zinc oxide nano materials, are Nanoparticulate pattern, and nano particle is straight
Diameter is 200 ~ 500 nm, and loose disorderly arranged composition multi-pore structure between particle, nano particle is core-shell structure, mixes cobalt oxidation
Zinc is core, and agraphitic carbon is shell.
The present invention also provides the preparations for preparing the above-mentioned carbon coating cobalt-doping zinc oxide nano material for lithium ion battery
Method, the specific scheme is that raw acetic acid zinc, glycolic and cobalt chloride are sufficiently mixed according to the molar ratio of 1:1:1, at room temperature
Ultrasonic agitation uniformly, is placed in reaction kettle, carries out hydrothermal synthesis reaction；After reaction, cooled to room temperature collects solid
Product washs, dry, obtains the MOF(Metal-organic frame containing Zn, Co element) presoma；The MOF presoma that will be obtained
It is placed in tube furnace, is carbonized under the protective atmosphere of Ar gas, then cool to room temperature and mix cobalt oxidation to get to the carbon coating
Zinc nano material.
Further, the temperature of hydrothermal synthesis reaction is 400 DEG C in a kettle, and the reaction time is 10 ~ 15h.
Further, carburizing temperature is 400 ~ 600 DEG C in tube furnace, and heating rate is 5 DEG C of min-1, carbonization time 2
Hour.
Carbon coating cobalt-doping zinc oxide nano material provided by the present invention, in 100 mA g-1Current density under, charge and discharge
After 170 circle of circulation, still there is 368mAh g-1Specific capacity, show high specific capacity and cyclical stability.
Beneficial achievement of the invention is:
(1) the carbon coating cobalt-doping zinc oxide nano material for lithium ion battery that method of the invention is prepared, mixes cobalt oxide
Change zinc Nanosurface and be coated with amorphous carbon layer, is conducive to the diffusion of lithium ion and electronics, improves the electric conductivity of material；Together
When, carbon-coating can inhibit volume change of cobalt-doped zinc oxide during charge and discharge electric induction to a certain extent, improve following for battery
Ring stability.Cobalt doped can be further improved the conductivity of zinc oxide, achieve the effect that enhance electrode material specific capacity, thus
Obtain high chemical property.
(2) the carbon coating cobalt-doping zinc oxide nano material for lithium ion battery that method of the invention is prepared, no
Only specific capacity with higher, and there is good cyclical stability, it is a kind of negative electrode of lithium ion battery material of good performance
Material, can be applied to extended-life lithium ion battery product.
(3) method that the present invention uses hydrothermal synthesis and high temperature cabonization, easy to operate, process is short, at low cost, is conducive to produce
Industry metaplasia produces.
Detailed description of the invention
Fig. 1 is the XPS figure of carbon coating cobalt-doping zinc oxide nano material prepared by embodiment 1.
Fig. 2 is the XRD diagram of carbon coating cobalt-doping zinc oxide nano material prepared by embodiment 1.
Fig. 3 is the SEM figure of carbon coating cobalt-doping zinc oxide nano material prepared by embodiment 1.
Fig. 4 is the constant current charge-discharge platform curve graph of carbon coating cobalt-doping zinc oxide nano material prepared by embodiment 1.
Fig. 5 is the long circulating constant current charge and discharge specific volume spirogram of carbon coating cobalt-doping zinc oxide nano material prepared by embodiment 1.
Specific embodiment
Below in conjunction with specific embodiment, the present invention is further illustrated.
Embodiment 1
10 mmol zinc acetate of raw material, 10 mmol glycolics and 10 mmol cobalt chlorides are mixed, ultrasonic agitation is equal at room temperature
It is even, it is placed in reaction kettle, carries out hydrothermal synthesis reaction, reaction temperature is 400 DEG C, and the reaction time is 12 hours；After reaction,
Cooled to room temperature collects solid product, washs, dry, obtains the MOF presoma containing Zn, Co element；By what is obtained
MOF presoma is placed in tube furnace, is carbonized under the protective atmosphere of Ar gas, 600 DEG C of carburizing temperature, heating rate be 5 DEG C/
Min, carbonization time are 2 hours；It then cools to room temperature, obtains carbon coating cobalt-doping zinc oxide nano material.
Embodiment 2
10 mmol zinc acetate of raw material, 10 mmol glycolics and 10 mmol cobalt chlorides are mixed, ultrasonic agitation is equal at room temperature
It is even, it is placed in reaction kettle, carries out hydrothermal synthesis reaction, reaction temperature is 400 DEG C, and the reaction time is 10 hours；After reaction,
Cooled to room temperature collects solid product, washs, dry, obtains the MOF presoma containing Zn, Co element；By what is obtained
MOF presoma is placed in tube furnace, is carbonized under the protective atmosphere of Ar gas, 500 DEG C of carburizing temperature, heating rate be 5 DEG C/
Min, carbonization time are 2 hours；It then cools to room temperature, obtains carbon coating cobalt-doping zinc oxide nano material.
Embodiment 3
10 mmol zinc acetate of raw material, 10 mmol glycolics and 10 mmol cobalt chlorides are mixed, ultrasonic agitation is equal at room temperature
It is even, it is placed in reaction kettle, carries out hydrothermal synthesis reaction, reaction temperature is 400 DEG C, and the reaction time is 15 hours；After reaction,
Cooled to room temperature collects solid product, washs, dry, obtains the MOF presoma containing Zn, Co element；By what is obtained
MOF presoma is placed in tube furnace, is carbonized under the protective atmosphere of Ar gas, 400 DEG C of carburizing temperature, heating rate be 5 DEG C/
Min, carbonization time are 2 hours；It then cools to room temperature, obtains carbon coating cobalt-doping zinc oxide nano material.
Performance test
1) XPS test: attached drawing 1 is the XPS map of 1 products obtained therefrom of embodiment, according to peak position it can be seen that product mainly contain Zn,
These four elements of Co, O, C.It is the peak of Zn2p3 at 1021.9eV；It is the peak of O1s at 531.3eV；285.2eV place is C1s
Peak；It is the peak of Co2p at 781.4eV, can proves that Co ion successfully mixes.
2) XRD is tested: the various embodiments described above are prepared into finally obtained sample and carry out XRD test, the XRD spectrum with ZnO
Comparison.Attached drawing 2 is the XRD diagram of embodiment 1, and therefrom it can be seen that, XRD spectral peak complies fully with ZnO powder XRD spectrum, wherein can
Diffraction maximum to see sample is corresponding with the characteristic peak of ZnO, it was demonstrated that it is single that final its stratum nucleare group of material obtained becomes ZnO
The peak XRD of carbon is not observed in phase, shows it for agraphitic carbon.
3) SEM is tested: the various embodiments described above being prepared finally obtained sample and carry out SEM test, attached drawing 3 is embodiment 1
SEM figure, carbon coating cobalt-doping zinc oxide nano material be Nanoparticulate pattern, nano-particle diameter be 200 ~ 500 nm,
Loose disorderly arranged between grain, nano particle is core-shell structure, and cobalt-doped zinc oxide is core, and agraphitic carbon is shell.
4) electrochemical property test: material made from the various embodiments described above is assembled into button cell respectively and carries out electrochemistry
Performance test.Attached drawing 4 is the charging and discharging curve of embodiment 1, when to be recycled to 50 circle left and right, voltage-specific capacity of continuous three circle
Curve, from curve, it can be seen that, in charging, as cycle-index increases, specific capacity, which has, to be slightly reduced；And specific volume when discharging
Amount then hardly follows cycle-index increase and decrease and changes.Fig. 5 is that the battery of sample assembly made from embodiment 1 is in current density
100 mA g-1Under the conditions of charge and discharge cycles specific discharge capacity figure, still there are after 170 charge and discharge cycles 368 mAh g-1's
Specific capacity illustrates that material has good cyclical stability and high specific capacity.
Claims (5)
1. a kind of carbon coating cobalt-doping zinc oxide nano material for lithium ion battery, it is characterised in that: the carbon coating mixes cobalt
Nano zinc oxide material is nano particle, and the nano-particle diameter is 200-500nm, loose disorderly arranged between nano particle
Constitute multi-pore structure；The nano particle is core-shell structure, and cobalt-doped zinc oxide is core, and agraphitic carbon is shell.
2. a kind of a kind of carbon coating for lithium ion battery for lithium ion battery according to claim 1 mixes cobalt oxide
Change zinc nano material, it is characterised in that: the carbon coating cobalt-doping zinc oxide nano material, in 100mAh g-1Current density under
Charge and discharge cycles 170 show 368 mAh g after enclosing-1Specific capacity.
3. preparing a kind of carbon coating cobalt-doping zinc oxide nano for lithium ion battery described in any one of claims 1 to 2
The method of material, step include:
Raw acetic acid zinc, glycolic are mixed with cobalt chloride, is ultrasonically treated and stirs evenly at room temperature and be placed in reaction kettle；It will
Reaction kettle, which is placed in baking oven, carries out hydrothermal synthesis reaction, is cooled to room temperature, and washs, the product that is dried to obtain is that the carbon coating is mixed
The presoma metal-organic framework material of cobalt oxidation zinc nano material；It will obtain presoma metal-organic framework material and be placed in tubular type
It in furnace, is carbonized, is then cooled to room temperature to get the carbon coating cobalt-doping zinc oxide nano material is arrived under the protective atmosphere of Ar gas
Material；
Wherein, the molar ratio of feed ethanol zinc, glycolic and cobalt chloride is 1:1:1.
4. a kind of preparation side of the carbon coating cobalt-doping zinc oxide nano material for lithium ion battery according to claim 3
Method, it is characterised in that: the temperature of hydrothermal synthesis reaction is 400 DEG C in a kettle, and the reaction time is 10 ~ 15h.
5. a kind of preparation side of the carbon coating cobalt-doping zinc oxide nano material for lithium ion battery according to claim 3
Method, it is characterised in that: carburizing temperature is 400 ~ 600 DEG C in tube furnace, and heating rate is 5 DEG C of min-1, carbonization time is 2 small
When.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910559155.1A CN110289407A (en) | 2019-06-26 | 2019-06-26 | A kind of carbon coating cobalt-doping zinc oxide nano material for lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910559155.1A CN110289407A (en) | 2019-06-26 | 2019-06-26 | A kind of carbon coating cobalt-doping zinc oxide nano material for lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110289407A true CN110289407A (en) | 2019-09-27 |
Family
ID=68005952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910559155.1A Pending CN110289407A (en) | 2019-06-26 | 2019-06-26 | A kind of carbon coating cobalt-doping zinc oxide nano material for lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110289407A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111584870A (en) * | 2020-05-15 | 2020-08-25 | 昆山宝创新能源科技有限公司 | Negative electrode material, preparation method thereof and battery |
| CN113060731A (en) * | 2021-03-18 | 2021-07-02 | 黑龙江工程学院 | Preparation method and application of ternary metal carbonized MOFs material |
| CN113839104A (en) * | 2020-06-24 | 2021-12-24 | 比亚迪股份有限公司 | Lithium battery cathode and lithium battery |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100286022A1 (en) * | 2007-09-25 | 2010-11-11 | The Regents Of The University Of California | Edible and biocompatible metal-organic frameworks |
| 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 |
| CN106410145A (en) * | 2016-10-27 | 2017-02-15 | 南开大学 | Method for preparing metallic compound/porous carbon nanorod of hierarchy structure |
| CN107459029A (en) * | 2017-07-07 | 2017-12-12 | 武汉理工大学 | A kind of nitrogen/metal atom doped hollow polyhedral nano-sized carbon shell material and preparation method |
| CN107464923A (en) * | 2017-07-19 | 2017-12-12 | 成都理工大学 | A kind of compound high-capacity lithium ion cell material of nano zine oxide/porous carbon in situ and preparation method thereof |
| CN107946560A (en) * | 2017-11-10 | 2018-04-20 | 武汉理工大学 | Carbon confinement metal or metal oxide composite nanostructure material and its preparation method and application |
| CN109160575A (en) * | 2018-07-23 | 2019-01-08 | 浙江工商大学 | A kind of double optoelectronic pole systems of automatic bias and application |
| CN109821540A (en) * | 2019-03-05 | 2019-05-31 | 武汉理工大学 | MOF derived carbon carries the preparation method of non-noble metal alloys catalysts and catalysis produces hydrogen application |
-
2019
- 2019-06-26 CN CN201910559155.1A patent/CN110289407A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100286022A1 (en) * | 2007-09-25 | 2010-11-11 | The Regents Of The University Of California | Edible and biocompatible metal-organic frameworks |
| 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 |
| CN106410145A (en) * | 2016-10-27 | 2017-02-15 | 南开大学 | Method for preparing metallic compound/porous carbon nanorod of hierarchy structure |
| CN107459029A (en) * | 2017-07-07 | 2017-12-12 | 武汉理工大学 | A kind of nitrogen/metal atom doped hollow polyhedral nano-sized carbon shell material and preparation method |
| CN107464923A (en) * | 2017-07-19 | 2017-12-12 | 成都理工大学 | A kind of compound high-capacity lithium ion cell material of nano zine oxide/porous carbon in situ and preparation method thereof |
| CN107946560A (en) * | 2017-11-10 | 2018-04-20 | 武汉理工大学 | Carbon confinement metal or metal oxide composite nanostructure material and its preparation method and application |
| CN109160575A (en) * | 2018-07-23 | 2019-01-08 | 浙江工商大学 | A kind of double optoelectronic pole systems of automatic bias and application |
| CN109821540A (en) * | 2019-03-05 | 2019-05-31 | 武汉理工大学 | MOF derived carbon carries the preparation method of non-noble metal alloys catalysts and catalysis produces hydrogen application |
Non-Patent Citations (1)
| Title |
|---|
| 师振璞: "由金属有机框架制备锌基氧化物锂离子电池负极材料", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111584870A (en) * | 2020-05-15 | 2020-08-25 | 昆山宝创新能源科技有限公司 | Negative electrode material, preparation method thereof and battery |
| CN113839104A (en) * | 2020-06-24 | 2021-12-24 | 比亚迪股份有限公司 | Lithium battery cathode and lithium battery |
| CN113839104B (en) * | 2020-06-24 | 2023-12-12 | 比亚迪股份有限公司 | Lithium battery cathode and lithium battery |
| CN113060731A (en) * | 2021-03-18 | 2021-07-02 | 黑龙江工程学院 | Preparation method and application of ternary metal carbonized MOFs material |
| CN113060731B (en) * | 2021-03-18 | 2021-10-26 | 黑龙江工程学院 | Preparation method and application of ternary metal carbonized MOFs material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104900862B (en) | The P2 phase layered electrode materials and preparation method of symmetrical sodium ion secondary battery | |
| CN102468485B (en) | Lithium titanate composite material, preparation method thereof, and application thereof | |
| CN109888245B (en) | Titanium niobium oxygen/carbon composite material with oxygen vacancy and carbon coating adjustment and preparation method and application thereof | |
| CN106252651B (en) | A kind of porous composite negative pole material of lithium ion battery and preparation method thereof | |
| CN107437617B (en) | A kind of surface modification method, gained richness lithium material and application improving rich lithium material chemical property | |
| CN106450295B (en) | A kind of sodium-ion battery positive material Na3Fe2(PO4)3And preparation method thereof | |
| CN105845904B (en) | A kind of sodium-ion battery metal oxide/polypyrrole hollow nanotube anode material and preparation method thereof | |
| CN101462765A (en) | Method for preparing lithium ionic cell cathode material spinelle lithium titanate | |
| CN106450265A (en) | In-situ nitrogen-doped carbon coated lithium titanate composite electrode material and preparation method thereof | |
| CN110289407A (en) | A kind of carbon coating cobalt-doping zinc oxide nano material for lithium ion battery | |
| CN109411735A (en) | A kind of positive electrode and preparation method thereof and lithium ion battery | |
| CN108172803A (en) | Cladded type richness lithium material that a kind of surface is modified and preparation method thereof and lithium ion battery | |
| CN105070923B (en) | The Co of nanostructured3O4/ Ru combination electrodes and its preparation method and application | |
| CN107706402A (en) | A kind of lithium manganese phosphate/carbon composite anode material of metallic element codope and preparation method thereof | |
| CN106602024A (en) | In-situ surface-modified lithium-rich material and preparation method thereof | |
| CN106486657A (en) | A kind of rich lithium material of surface in situ cladding and preparation method thereof | |
| CN106299344B (en) | A kind of sodium-ion battery nickel titanate negative electrode material and preparation method thereof | |
| CN115881920A (en) | Multi-strategy modified cobalt-doped cladding type monocrystal layered oxide sodium ion battery positive electrode material | |
| CN109148828A (en) | One kind includes straw cluster-shaped Co-Fe2O3Electrode of nanocomposite and preparation method thereof | |
| CN111591971B (en) | Titanium lithium phosphate nanocomposite, preparation method and application in aqueous battery | |
| CN108400320B (en) | Method for vulcanizing surface of spinel lithium nickel manganese oxide positive electrode material | |
| CN103367716A (en) | Preparation method of anode material by growing carbon nano tube on surface of titanium dioxide | |
| CN104766953B (en) | Preparation method of titanium dioxide/iron oxide composite anode material | |
| CN108963242A (en) | A kind of unformed sodium-ion battery positive material and preparation method thereof and sodium-ion battery | |
| CN108933243A (en) | A kind of height ratio capacity sodium-ion battery positive material and preparation method thereof and sodium-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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190927 |