CN106348345A - Molybdenum oxide material with core-shell structure for lithium ion battery cathode and preparation method thereof - Google Patents
Molybdenum oxide material with core-shell structure for lithium ion battery cathode and preparation method thereof Download PDFInfo
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- CN106348345A CN106348345A CN201610728692.0A CN201610728692A CN106348345A CN 106348345 A CN106348345 A CN 106348345A CN 201610728692 A CN201610728692 A CN 201610728692A CN 106348345 A CN106348345 A CN 106348345A
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- molybdenum oxide
- oxide material
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- 239000000463 material Substances 0.000 title claims abstract description 29
- 229910000476 molybdenum oxide Inorganic materials 0.000 title claims abstract description 24
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title abstract description 9
- 239000011258 core-shell material Substances 0.000 title abstract 3
- 239000012298 atmosphere Substances 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 230000009467 reduction Effects 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims description 20
- 238000003756 stirring Methods 0.000 claims description 9
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 7
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 241001597008 Nomeidae Species 0.000 claims description 5
- 239000002202 Polyethylene glycol Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229920001223 polyethylene glycol Polymers 0.000 claims description 4
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims description 3
- 239000004471 Glycine Substances 0.000 claims description 3
- 229960005070 ascorbic acid Drugs 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 4
- 230000010287 polarization Effects 0.000 abstract description 3
- 239000010406 cathode material Substances 0.000 abstract 1
- 239000000411 inducer Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 abstract 1
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Inorganic materials O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 abstract 1
- QXYJCZRRLLQGCR-UHFFFAOYSA-N molybdenum(IV) oxide Inorganic materials O=[Mo]=O QXYJCZRRLLQGCR-UHFFFAOYSA-N 0.000 abstract 1
- 239000002344 surface layer Substances 0.000 abstract 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 238000009413 insulation Methods 0.000 description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 5
- 239000011733 molybdenum Substances 0.000 description 5
- 229910052750 molybdenum Inorganic materials 0.000 description 4
- 239000010405 anode material Substances 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 239000007772 electrode material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 229920000151 polyglycol Polymers 0.000 description 2
- 239000010695 polyglycol Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 206010013786 Dry skin Diseases 0.000 description 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002127 nanobelt Substances 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G39/00—Compounds of molybdenum
- C01G39/02—Oxides; Hydroxides
-
- 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
- H01M4/362—Composites
- H01M4/366—Composites as layered products
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a molybdenum oxide material with a core-shell structure for a lithium ion battery cathode and a preparation method thereof3Core and MoO coated on surface of core2And (4) a shell. The invention adopts a gas phase heat treatment reduction method to coat MoO to be coated3Mixing reduction inducer with core, and performing heat treatment in air atmosphere to obtain MoO3MoO of core surface layer3Will be reduced to uniform MoO2And (3) a layer. The core-shell structure provided by the invention has the advantages of simple preparation method, low requirement on the appearance of the core structure, controllable, complete and uniform shell structure thickness, can be applied to a lithium ion battery cathode material, and can reduce electron conduction polarization and improve the energy density of the battery.
Description
Technical field
The invention belongs to technical field of lithium ion is and in particular to a kind of molybdenum of used as negative electrode of Li-ion battery nucleocapsid structure
Oxide material and preparation method thereof.
Background technology
Lithium ion battery has that energy density is high, and voltage platform is high, has extended cycle life, and extensively should the features such as environmental friendliness
For consumer electronics and electrokinetic cell field.Business-like lithium-ion battery system is mainly graphite-like Carbon anode material at present
Material, but its theoretical specific capacity is only 372mah/g, and exploitation novel anode material has become the task of top priority.
Two oxides moo of metal molybdenum3And moo2Can serve as the negative material of lithium ion battery.moo3Have higher
Theoretical specific capacity (1117mah/g), but during actual use can due to electronic conductivity poor, actual specific volume can be led to
Amount is low and cyclical stability is poor.Generally way is all by moo3It is combined electron conduction (the Sun Yong to improve material with material with carbon element
Bright. molybdenum-base oxide lithium ion battery negative material progress. Science Bulletin 58(2013) 3254-3273).moo2Tool
There is the rutile structure of distortion, there is high conductivity, high-melting-point, high density (6.5g/cm3) and high chemical stability.Additionally,
moo2Theoretical specific capacity can reach 838mah/g.Therefore two kinds of molybdenum oxides are combined, can reach synergism.For example molybdenum source exists
In catabolic process, molybdenum meeting incomplete oxidation, generate moo3/moo2Compound phase (y.s. jung et al. electrochemical
reactivity of ball-milled moo3−y as anode materials for lithium-ion
batteries. journal of power sources 188(2009)286–291).Moo in document3Y and moo3Put first
Capacitance is above 1100mah/g(0-3vvs.li/li+), but moo3The cycle performance of y composite is more excellent, and 35
After Zhou Xunhuan, capability retention is 64.4%, and control sample circulate 10 weeks after only 27.6%.In Publication No. cn105140478a
Apply for moo3-h0.4moo3The nano belt preparation method of nucleocapsid structure.
Simple machinery is combined, moo3The electrical conductance path of electrode material is still less.The present invention adopts gas phase heat treatment
Reducing process, by moo3Electrode material surface is reduced into moo2, a kind of homogeneous nucleocapsid structure is obtained, moo can be significantly greatly increased3
Electrical conductance path, reduce electronics conduction polarization phenomenon.
Content of the invention
It is an object of the invention to overcoming prior art, a kind of molybdenum of used as negative electrode of Li-ion battery nucleocapsid structure is provided to aoxidize
Thing material and preparation method thereof.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of molybdenum oxide material of used as negative electrode of Li-ion battery nucleocapsid structure it is characterised in that this molybdenum oxide material by
moo3Core and the moo being coated on core surface2Shell forms, described moo2The thickness of shell is 1-500nm.
A kind of molybdenum oxide material preparation method of used as negative electrode of Li-ion battery nucleocapsid structure it is characterised in that include with
Lower step:
(1) by moo3Mix with reduction derivant, stirring, at 60 DEG C, dry to obtain powder body；
(2) powder body is carried out in reducing atmosphere heat treatment, heat treatment temperature is 400-800 DEG C, the time is 0.5-3h, obtains
moo2Shell thickness is the molybdenum oxide material of the nucleocapsid structure of 1-500nm.
Scheme further, described reduction derivant is graphite, Polyethylene Glycol, citric acid, glycine, one kind of vitamin c
Or multiple, addition is moo3The 0.1-3wt% of nuclear mass.
Scheme further, described reducing atmosphere is n2, h2, ar, ch4At least one.
Scheme further, described moo3Particle diameter be 0.05-20 μm.
Beneficial effects of the present invention:
(1) present invention prepares molybdenum oxide nucleocapsid structure using gas phase heat treatment reducing process, and the method is simple, low cost it is easy to
Large-scale production.
(2) nucleocapsid structure of the present invention reduces in the gas phase, to moo3The pattern requirement of core is low, and universality is strong, and shell structure is thick
Degree is controlled, and homogeneity is good.
(3) present invention has the moo of higher electronic conductance2Shell structure can improve moo3The not enough problem of electronic conductance, fall
The polarization phenomena of low electrode material.
Brief description
Fig. 1 is the molybdenum oxide material preparation method schematic diagram of used as negative electrode of Li-ion battery nucleocapsid structure of the present invention.
Specific embodiment
With specific embodiment, the present invention is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1.A kind of molybdenum oxide material preparation method of used as negative electrode of Li-ion battery nucleocapsid structure, including following
Step:
(1) by moo3Mix with reduction derivant, stirring, dry to obtain powder body for 60 DEG C；
(2) powder body is carried out in reducing atmosphere heat treatment, heat treatment temperature is 400-800 DEG C, the time is 0.5-3h, obtains
Thickness is the moo of 1-500nm2Shell.
Embodiment 1
Weigh 5gmoo3, add 0.005g polyglycol solution and 10ml ethanol, ethanol is dissolved in second as solvent, Polyethylene Glycol
Alcohol, by Polyethylene Glycol and moo3It is uniformly dispersed, and volatile, easy stirring and drying, 60 DEG C of stirring and dryings obtain powder body；Powder body is put
Put in tube-type atmosphere furnace, logical n2Atmosphere, is heated to 750 DEG C of insulation 1h, obtains moo2Shell thickness is 100nm nucleocapsid structure
Molybdenum oxide material.
Embodiment 2
Weigh 5gmoo3, add 0.015g polyglycol solution and 10ml ethanol.Stirring, dries to obtain powder body for 60 DEG C；Powder body is put
Put in tube-type atmosphere furnace, logical h2Atmosphere, is heated to 400 DEG C of insulation 0.5h, obtains moo2Shell thickness is 1nm nucleocapsid structure
Molybdenum oxide material.
Embodiment 3
Weigh 5gmoo3, add 0.1g citric acid powder body and 10ml deionized water.Stirring, dries to obtain powder body for 60 DEG C；Powder body is put
Put in tube-type atmosphere furnace, logical ch4Atmosphere, is heated to 500 DEG C of insulation 1.5h, obtains moo2Shell thickness is 10nm nucleocapsid structure
Molybdenum oxide material.
Embodiment 4
Weigh 5gmoo3, add 0.15g graphite composite powder.After mechanical mix grinding 1h, powder body is placed in tube-type atmosphere furnace, logical h2Gas
Atmosphere, is heated to 500 DEG C of insulation 1.5h, obtains moo2Shell thickness is the molybdenum oxide material of 50nm nucleocapsid structure.
Embodiment 5
Weigh 5gmoo3, add 0.05g vitamin c powder body and 10ml deionized water.Stirring, dries to obtain powder body for 60 DEG C；By powder body
It is placed in tube-type atmosphere furnace, logical ar atmosphere, be heated to 700 DEG C of insulation 3h, obtain moo2Shell thickness is the nucleocapsid knot of 200nm
The molybdenum oxide material of structure.
Embodiment 6
Weigh 5gmoo3, add 0.05g glycine powder body and 10ml deionized water.Stirring, dries to obtain powder body for 60 DEG C；Powder body is put
Put in tube-type atmosphere furnace, logical ar atmosphere, it is heated to 800 DEG C of insulation 3h, obtain moo2Shell thickness is 500nm nucleocapsid structure
Molybdenum oxide material.
Above example is only the embodiment of part of the present invention.It should be noted that embodiments of the present invention be not subject to above-mentioned
The restriction of embodiment, other any spirit without departing from the present invention and the change made under principle, modification, replacement, combine,
Simplify, be regarded as equivalent substitute mode, be included within protection scope of the present invention.
Claims (5)
1. a kind of molybdenum oxide material of used as negative electrode of Li-ion battery nucleocapsid structure it is characterised in that this molybdenum oxide material by
moo3Core and the moo being coated on core surface2Shell forms, described moo2The thickness of shell is 1-500nm.
2. a kind of molybdenum oxide material preparation method of used as negative electrode of Li-ion battery nucleocapsid structure is it is characterised in that include following
Step:
(1) by moo3Mix with reduction derivant, stirring, dry to obtain powder body for 60 DEG C；
(2) powder body is carried out in reducing atmosphere heat treatment, heat treatment temperature is 400-800 DEG C, the time is 0.5-3h, obtains
moo2Shell thickness is the molybdenum oxide material of the nucleocapsid structure of 1-500nm.
3. the molybdenum oxide material preparation method of used as negative electrode of Li-ion battery nucleocapsid structure according to claim 2, it is special
Levy and be, described reduction derivant is graphite, Polyethylene Glycol, citric acid, glycine, one or more of vitamin c, addition
For moo3The 0.1-3wt% of nuclear mass.
4. the molybdenum oxide material preparation method of used as negative electrode of Li-ion battery nucleocapsid structure according to claim 2, it is special
Levy and be, described reducing atmosphere is n2, h2, ar, ch4At least one.
5. the molybdenum oxide material preparation method of used as negative electrode of Li-ion battery nucleocapsid structure according to claim 2, it is special
Levy and be, described moo3Particle diameter be 0.05-20 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610728692.0A CN106348345B (en) | 2016-08-25 | 2016-08-25 | Molybdenum oxide material with core-shell structure for lithium ion battery cathode and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610728692.0A CN106348345B (en) | 2016-08-25 | 2016-08-25 | Molybdenum oxide material with core-shell structure for lithium ion battery cathode and preparation method thereof |
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| CN106348345B CN106348345B (en) | 2018-03-20 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107732226A (en) * | 2017-11-22 | 2018-02-23 | 合肥国轩高科动力能源有限公司 | Molybdenum oxide-carbon self-supporting composite negative electrode material of lithium ion battery and preparation method of molybdenum oxide-carbon self-supporting composite negative electrode material |
| CN110143614A (en) * | 2019-05-31 | 2019-08-20 | 南京倍格电子科技有限公司 | A kind of preparation method and applications of one-dimensional nano structure molybdenum oxide |
| CN112186166A (en) * | 2020-10-19 | 2021-01-05 | 中国人民解放军国防科技大学 | Molybdenum/cobalt oxide-carbon composite material and preparation method thereof, lithium ion battery negative electrode piece and lithium ion battery |
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| US4547220A (en) * | 1984-04-24 | 1985-10-15 | Amax Inc. | Reduction of MoO3 and ammonium molybdates by ammonia in a rotary furnace |
| CN102931406A (en) * | 2012-10-29 | 2013-02-13 | 哈尔滨工程大学 | Graphene and MoO2 nanometer composite material, preparation method and lithium ion battery negative material |
| CN105514403A (en) * | 2016-01-13 | 2016-04-20 | 陕西科技大学 | Three-dimensional core-shell structure MoO2-MoS2 lithium ion battery cathode material and preparing method thereof |
-
2016
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| US4547220A (en) * | 1984-04-24 | 1985-10-15 | Amax Inc. | Reduction of MoO3 and ammonium molybdates by ammonia in a rotary furnace |
| CN102931406A (en) * | 2012-10-29 | 2013-02-13 | 哈尔滨工程大学 | Graphene and MoO2 nanometer composite material, preparation method and lithium ion battery negative material |
| CN105514403A (en) * | 2016-01-13 | 2016-04-20 | 陕西科技大学 | Three-dimensional core-shell structure MoO2-MoS2 lithium ion battery cathode material and preparing method thereof |
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| Title |
|---|
| J.-G. CHOI等: "XPS study of as-prepared and reduced molybdenum oxides", 《APPLIED SURFACE SCIENCE》 * |
| JIE DANG等: "Kinetics and mechanism of hydrogen reduction of MoO3 to MoO2", 《INT. JOURNAL OF REFRACTORY METALS AND HARD MATERIALS》 * |
| WERNER V. SCHULMEYER等: "Mechanisms of the hydrogen reduction of molybdenum oxides", 《INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS》 * |
| 两段碳还原MOO3反应产物的成分研究: "两段碳还原MoO3反应产物的成分研究", 《稀有金属与硬质合金》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107732226A (en) * | 2017-11-22 | 2018-02-23 | 合肥国轩高科动力能源有限公司 | Molybdenum oxide-carbon self-supporting composite negative electrode material of lithium ion battery and preparation method of molybdenum oxide-carbon self-supporting composite negative electrode material |
| CN110143614A (en) * | 2019-05-31 | 2019-08-20 | 南京倍格电子科技有限公司 | A kind of preparation method and applications of one-dimensional nano structure molybdenum oxide |
| CN112186166A (en) * | 2020-10-19 | 2021-01-05 | 中国人民解放军国防科技大学 | Molybdenum/cobalt oxide-carbon composite material and preparation method thereof, lithium ion battery negative electrode piece and lithium ion battery |
| CN112186166B (en) * | 2020-10-19 | 2022-02-08 | 中国人民解放军国防科技大学 | Molybdenum/cobalt oxide-carbon composite material and preparation method thereof, lithium ion battery negative electrode piece and lithium ion battery |
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