CN105185977B - A kind of preparation method of lithium ion battery negative material - Google Patents
A kind of preparation method of lithium ion battery negative material Download PDFInfo
- Publication number
- CN105185977B CN105185977B CN201510658466.5A CN201510658466A CN105185977B CN 105185977 B CN105185977 B CN 105185977B CN 201510658466 A CN201510658466 A CN 201510658466A CN 105185977 B CN105185977 B CN 105185977B
- Authority
- CN
- China
- Prior art keywords
- manganese dioxide
- graphene oxide
- manganese
- negative material
- lithium ion
- 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.)
- Active
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
- H01M4/48—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
- H01M4/502—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese for non-aqueous cells
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G45/00—Compounds of manganese
- C01G45/02—Oxides; Hydroxides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1391—Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
-
- 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)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
A kind of preparation method of lithium ion battery negative material, step are：Graphene oxide is taken to be add to deionized water, prepare graphene oxide dispersion, take manganese dioxide presoma and citric acid, it is added in graphene oxide dispersion, then adjusts pH value to 17, prepare mixed dispersion liquid, by above-mentioned mixed dispersion liquid after heating stirring, cooling and aging, drying, calcining, with dense sulfuric acid treatment, product manganese dioxide is obtained, as cell negative electrode material；The method of the present invention simple process, preparation process energy consumption are relatively low, it is ε type manganese dioxide using manganese dioxide prepared by this method, structure feature is distinct, in Nanoparticulate, particle average size is 20nm or so, characteristic with large specific surface area, structure feature distinctness, electrochemical performance, the negative material chemical property that the manganese dioxide prepared by the present invention is assembled into are preferable.
Description
Technical field
The present invention relates to lithium ion battery negative material preparing technical field, more particularly to a kind of negative electrode of lithium ion battery material
The preparation method of material.
Background technology
Lithium ion battery due to have the advantages that operating voltage is high, energy density is high, memory-less effect and be widely used
In the small-sized movables electronics field such as video camera, mobile phone, laptop, and in the fields such as power battery and energy-storage battery
Also the development prospect to attract people's attention is shown；But it is fast with the aggravation of energy crisis and portable electronic device and Electric power car
Speed increases, and commercial Li-ion battery graphite cathode material has been unable to meet the demand of people at present.
Metal oxide manganese dioxide has higher theoretical specific capacity (1232mAh/g), and discharge platform is relatively low (about
0.40V), the voltage and power of battery entirety are helped to improve.And manganese dioxide has various crystal structure available
(such as α phases, β phases, γ phases, ε are equal), diversified crystal structure unit assembling mode be more advantageous to understand electrode material structure with
The association of performance.In addition, it is manganese dioxide nature rich reserves, cheap, environmental-friendly, therefore manganese dioxide is in lithium-ion electric
Pond negative material has huge potentiality using upper.Manganese dioxide is for existing for lithium ion battery negative material commercialization at present
Bulk effect is larger in relatively poor, charge and discharge process for electric conductivity for main problem.
To solve the above problems, the common preparation method of manganese dioxide negative material includes high temperature pyrolytic cracking (HTP), tradition at present
Hydro-thermal method and solvent-thermal method etc., these preparation methods there are high energy consumption, preparation process is complicated, is unfavorable for industrialized production etc. asks
Topic.For the performance for further decreasing manufacturing cost, improving material, it is badly in need of exploitation lithium ion battery manganese dioxide cathode
The new preparation method of material.
Invention content
In order to overcome the disadvantages of the above prior art, the purpose of the present invention is to provide a kind of lithium ion battery negative materials
Preparation method, the performance that can be reduced manufacturing cost, improve material has that low energy consumption, preparation process is simple, is conducive to
The characteristics of industrialized production.
In order to achieve the above object, the technical solution that the present invention takes is：
A kind of preparation method of lithium ion battery negative material prepares lithium ion battery with two using graphene oxide auxiliary
Manganese oxide negative material, step are：
S1, it takes graphene oxide to be add to deionized water, is ultrasonically treated, graphene oxide dispersion is prepared
Liquid；
S2, manganese dioxide presoma and citric acid are taken, is added in above-mentioned graphene oxide dispersion, is mixed, uses ammonia
Water adjusts the pH value of mixed solution to 1-7, and mixed dispersion liquid is prepared；
S3, above-mentioned mixed dispersion liquid is stirred into 3-12h in the case where being heated to 50-90 DEG C of state, dispersion liquid is cooled to 18-25
For 24 hours, then the dry 4-12h in the case where temperature is 70-130 DEG C of environment, obtains solid matter for DEG C ageing；
S4, above-mentioned solid matter in the environment of 300-700 DEG C is calcined into 3-7h, then uses the dense sulfuric acid treatment of 2mol/L
1-4h obtains product manganese dioxide, as cell negative electrode material.
The manganese dioxide presoma includes：It is any one in manganese acetate, manganese carbonate, manganese sulfate, manganese nitrate, potassium permanganate
Kind.
The mass ratio of the manganese dioxide presoma and citric acid is：0.6-0.8:1, specifically for：0.7:1.
The mass ratio of the manganese dioxide presoma and graphene oxide is：2-7:1.
The product manganese dioxide is ε-type manganese dioxide.
Beneficial effects of the present invention are：
Compared with prior art, simple process, preparation process energy consumption are relatively low for the method for the present invention.Two prepared using this method
Manganese oxide is ε-type manganese dioxide, and structure feature is distinct, is in Nanoparticulate, and particle average size is 20nm or so, have than
Surface area is big, structure feature is distinct, the characteristic of electrochemical performance.The cathode that the manganese dioxide prepared by the present invention is assembled into
Material electrochemical performance is preferable.
Description of the drawings
Fig. 1 is the XRD diagram of manganese dioxide prepared by the embodiment of the present invention 1.
Fig. 2 is the TEM figures of manganese dioxide prepared by the embodiment of the present invention 1.
Specific implementation mode
Invention is further described in detail with reference to the accompanying drawings and examples.
The present invention is a kind of preparation method of lithium ion battery negative material, and lithium ion is prepared using graphene oxide auxiliary
Battery manganese dioxide negative material, step are：
S1, it takes graphene oxide to be add to deionized water, is ultrasonically treated, graphene oxide dispersion is prepared
Liquid；
S2, manganese dioxide presoma and citric acid are taken, is added in above-mentioned graphene oxide dispersion, is mixed, uses ammonia
Water adjusts the pH value of mixed solution to 1-7, and mixed dispersion liquid is prepared；
S3, above-mentioned mixed dispersion liquid is stirred into 3-12h in the case where being heated to 50-90 DEG C of state, dispersion liquid is cooled to 18-25
For 24 hours, then the dry 4-12h in the case where temperature is 70-130 DEG C of environment, obtains solid matter for DEG C ageing；
S4, above-mentioned solid matter in the environment of 300-700 DEG C is calcined into 3-7h, then uses the dense sulfuric acid treatment of 2mol/L
1-4h obtains product manganese dioxide, as cell negative electrode material.
The manganese dioxide presoma includes：It is any one in manganese acetate, manganese carbonate, manganese sulfate, manganese nitrate, potassium permanganate
Kind.
The mass ratio of the manganese dioxide presoma and citric acid is：0.6-0.8:1, specifically for：0.7:1.
The mass ratio of the manganese dioxide presoma and graphene oxide is：2-7:1.
The product manganese dioxide is ε-type manganese dioxide.
Embodiment 1
It weighs 0.4g graphene oxides to be added in 600ml deionized waters, carries out supersound process 2h, oxidation stone is prepared
Black alkene dispersion liquid.
It weighs in 4.0g citric acids, the above-mentioned graphene oxide dispersion of 2.8g manganese acetates addition, is mixed, use ammonium hydroxide
(NH3·H2O the pH value of mixed solution) is adjusted to 5, and mixed dispersion liquid is prepared.
Above-mentioned mixed dispersion liquid is stirred into 7h to collosol state in the case where being heated to 80 DEG C of states, dispersion liquid is cooled to 18-
For 24 hours, dry 4h at being then 130 DEG C in temperature obtains solid matter for 25 DEG C of ageings.
Above-mentioned solid matter is calcined into 3h in the environment of 700 DEG C, then uses dense sulfuric acid treatment 1h, obtains product titanium dioxide
Manganese, as cell negative electrode material.The XRD diagram and TEM figures of product are referring to Fig. 1 and Fig. 2.
As seen from Figure 1, prepared manganese dioxide crystal form is ε-type manganese dioxide (JCPDS no.30-0820).2 θ=
Diffraction maximum corresponds to (100), (101), (102), (110) crystal face respectively at 37 °, 42 °, 56 °, 68 °, and diffraction maximum peak shape is sharp, shows
The structure feature of manganese dioxide product distinctness is shown.
From Figure 2 it can be seen that manganese dioxide is Nanoparticulate, particle average size is 20nm or so.It is auxiliary in graphene oxide
It helps during preparing manganese dioxide, the sheet graphene oxide confinement oriented growth of manganese dioxide, to regulate and control dioxy
Change the pattern of manganese.
Manganese dioxide, Kynoar (PVDF) and acetylene black are taken, according to mass ratio 8:1:1 ratio ground and mixed, adds
Enter few drops of N-Methyl pyrrolidones, using copper foil as metal collector, test electrode is made.Manganese dioxide is as negative material
Being assembled in glove box for lithium ion battery carries out, and is used as to electrode using Li foils.Electrolyte is business organic electrolyte.The reality
It applies manganese dioxide negative material first discharge specific capacity under the current density of 100mA/g in example and reaches 1400mAh/g.
Embodiment 2
It weighs 0.4g graphene oxides to be added in 600ml deionized waters, carries out supersound process 2h, oxidation stone is prepared
Black alkene dispersion liquid.
It weighs in 3.4g citric acids, the above-mentioned graphene oxide dispersion of 2.4g manganese acetates addition, is mixed, use ammonium hydroxide
(NH3·H2O the pH value of mixed solution) is adjusted to 3, and mixed dispersion liquid is prepared.
Above-mentioned mixed dispersion liquid is stirred into 3h to collosol state in the case where being heated to 90 DEG C of states, dispersion liquid is cooled to 18-
For 24 hours, dry 7h at being then 110 DEG C in temperature obtains solid matter for 25 DEG C of ageings.
Above-mentioned solid matter is calcined into 4h in the environment of 600 DEG C, then uses dense sulfuric acid treatment 3h, obtains product titanium dioxide
Manganese, as cell negative electrode material.
Manganese dioxide, Kynoar (PVDF) and acetylene black are taken, according to mass ratio 8:1:1 ratio ground and mixed, adds
Enter few drops of N-Methyl pyrrolidones, using copper foil as metal collector, test electrode is made.Manganese dioxide is as negative material
Being assembled in glove box for lithium ion battery carries out, and is used as to electrode using Li foils.Electrolyte is business organic electrolyte.The reality
It applies manganese dioxide negative material first discharge specific capacity under the current density of 100mA/g in example and reaches 1390mAh/g.
Embodiment 3
It weighs 0.4g graphene oxides to be added in 600ml deionized waters, carries out supersound process 2h, oxidation stone is prepared
Black alkene dispersion liquid.
It weighs in 2.8g citric acids, the above-mentioned graphene oxide dispersion of 2.0g manganese acetates addition, is mixed, use ammonium hydroxide
(NH3·H2O the pH value of mixed solution) is adjusted to 4, and mixed dispersion liquid is prepared.
Above-mentioned mixed dispersion liquid is stirred into 10h to collosol state in the case where being heated to 70 DEG C of states, dispersion liquid is cooled to 18-
For 24 hours, dry 10h at being then 100 DEG C in temperature obtains solid matter for 25 DEG C of ageings.
Above-mentioned solid matter is calcined into 5h in the environment of 500 DEG C, then uses dense sulfuric acid treatment 2h, obtains product titanium dioxide
Manganese, as cell negative electrode material.
Manganese dioxide, Kynoar (PVDF) and acetylene black are taken, according to mass ratio 8:1:1 ratio ground and mixed, adds
Enter few drops of N-Methyl pyrrolidones, using copper foil as metal collector, test electrode is made.Manganese dioxide is as negative material
Being assembled in glove box for lithium ion battery carries out, and is used as to electrode using Li foils.Electrolyte is business organic electrolyte.The reality
It applies manganese dioxide negative material first discharge specific capacity under the current density of 100mA/g in example and reaches 1374mAh/g.
Embodiment 4
It weighs 0.4g graphene oxides to be added in 600ml deionized waters, carries out supersound process 2h, oxidation stone is prepared
Black alkene dispersion liquid.
It weighs in 2.3g citric acids, the above-mentioned graphene oxide dispersion of 1.6g manganese carbonates addition, is mixed, use ammonium hydroxide
(NH3·H2O the pH value of mixed solution) is adjusted to 5, and mixed dispersion liquid is prepared.
Above-mentioned mixed dispersion liquid is stirred into 12h to collosol state in the case where being heated to 50 DEG C of states, dispersion liquid is cooled to 18-
For 24 hours, dry 12h at being then 70 DEG C in temperature obtains solid matter for 25 DEG C of ageings.
Above-mentioned solid matter is calcined into 6h in the environment of 400 DEG C, then uses dense sulfuric acid treatment 4h, obtains product titanium dioxide
Manganese, as cell negative electrode material.
Manganese dioxide, Kynoar (PVDF) and acetylene black are taken, according to mass ratio 8:1:1 ratio ground and mixed, adds
Enter few drops of N-Methyl pyrrolidones, using copper foil as metal collector, test electrode is made.Manganese dioxide is as negative material
Being assembled in glove box for lithium ion battery carries out, and is used as to electrode using Li foils.Electrolyte is business organic electrolyte.The reality
It applies manganese dioxide negative material first discharge specific capacity under the current density of 100mA/g in example and reaches 1360mAh/g.
Embodiment 5
It weighs 0.4g graphene oxides to be added in 600ml deionized waters, carries out supersound process 2h, oxidation stone is prepared
Black alkene dispersion liquid.
It weighs in 1.1g citric acids, the above-mentioned graphene oxide dispersion of 0.8g potassium permanganate addition, is mixed, use ammonium hydroxide
(NH3·H2O the pH value of mixed solution) is adjusted to 5, and mixed dispersion liquid is prepared.
Above-mentioned mixed dispersion liquid is stirred into 10h to collosol state in the case where being heated to 90 DEG C of states, dispersion liquid is cooled to 18-
For 24 hours, dry 12h at being then 110 DEG C in temperature obtains solid matter for 25 DEG C of ageings.
Above-mentioned solid matter is calcined into 7h in the environment of 300 DEG C, then uses dense sulfuric acid treatment 5h, obtains product titanium dioxide
Manganese, as cell negative electrode material.
Manganese dioxide, Kynoar (PVDF) and acetylene black are taken, according to mass ratio 8:1:1 ratio ground and mixed, adds
Enter few drops of N-Methyl pyrrolidones, using copper foil as metal collector, test electrode is made.Manganese dioxide is as negative material
Being assembled in glove box for lithium ion battery carries out, and is used as to electrode using Li foils.Electrolyte is business organic electrolyte.The reality
It applies manganese dioxide negative material first discharge specific capacity under the current density of 100mA/g in example and reaches 1370mAh/g.
Claims (4)
1. a kind of preparation method of lithium ion battery negative material, which is characterized in that using graphene oxide auxiliary prepare lithium from
Sub- battery manganese dioxide negative material, step are：
S1, it takes graphene oxide to be add to deionized water, is ultrasonically treated, graphene oxide dispersion is prepared；
S2, manganese dioxide presoma and citric acid are taken, is added in above-mentioned graphene oxide dispersion, is mixed, with ammonium hydroxide tune
The pH value of mixed solution is saved to 1-7, mixed dispersion liquid is prepared；
S3, above-mentioned mixed dispersion liquid is stirred into 3-12h in the case where being heated to 50-90 DEG C of state, by dispersion liquid be cooled to 18-25 DEG C it is old
Change for 24 hours, then the dry 4-12h in the case where temperature is 70-130 DEG C of environment, obtains solid matter；
S4, above-mentioned solid matter in the environment of 300-700 DEG C is calcined into 3-7h, then uses the dense sulfuric acid treatment 1- of 2mol/L
4h obtains product manganese dioxide, as cell negative electrode material.
2. a kind of preparation method of lithium ion battery negative material according to claim 1, which is characterized in that
The manganese dioxide presoma includes：Any one in manganese acetate, manganese carbonate, manganese sulfate, manganese nitrate, potassium permanganate.
3. a kind of preparation method of lithium ion battery negative material according to claim 1, which is characterized in that the dioxy
The mass ratio for changing manganese presoma and citric acid is：0.6-0.8:1；The quality of the manganese dioxide presoma and graphene oxide
Ratio is：2-7:1.
4. a kind of preparation method of lithium ion battery negative material according to claim 1, which is characterized in that the product
Manganese dioxide is ε-type manganese dioxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510658466.5A CN105185977B (en) | 2015-10-13 | 2015-10-13 | A kind of preparation method of lithium ion battery negative material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510658466.5A CN105185977B (en) | 2015-10-13 | 2015-10-13 | A kind of preparation method of lithium ion battery negative material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105185977A CN105185977A (en) | 2015-12-23 |
| CN105185977B true CN105185977B (en) | 2018-08-28 |
Family
ID=54907932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510658466.5A Active CN105185977B (en) | 2015-10-13 | 2015-10-13 | A kind of preparation method of lithium ion battery negative material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105185977B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252628B (en) * | 2016-08-30 | 2019-03-26 | 安徽师范大学 | A kind of preparation method of manganese oxide/graphene nanocomposite material, negative electrode of lithium ion battery, lithium ion battery |
| CN106229499A (en) * | 2016-09-18 | 2016-12-14 | 陕西科技大学 | A kind of preparation method of lithium ion battery MnO/Super P nanometer anode material |
| CN106379943B (en) * | 2016-11-15 | 2018-05-04 | 南昌专腾科技有限公司 | Method for preparing superfine manganese dioxide by using potassium manganate |
| CN106517345B (en) * | 2016-11-15 | 2018-01-05 | 南昌专腾科技有限公司 | Method for preparing ultrafine manganese dioxide by using potassium permanganate and potassium manganate |
| CN106517344B (en) * | 2016-11-15 | 2018-11-27 | 南昌专腾科技有限公司 | Method for preparing superfine manganese dioxide by using potassium permanganate |
| CN106848290A (en) * | 2017-03-10 | 2017-06-13 | 陕西科技大学 | A kind of lithium ion battery MnO nano bowls and preparation method thereof |
| CN108822549A (en) * | 2018-06-28 | 2018-11-16 | 宁波蒙曼生物科技有限公司 | A kind of bicomponent condensed type room temperature sulfidization silicon rubber and its preparation |
| CN112174213B (en) * | 2020-09-18 | 2022-08-09 | 浙江浙能中科储能科技有限公司 | Preparation of dispersed spherical manganese oxide material and application of dispersed spherical manganese oxide material in zinc battery |
| CN112701275B (en) * | 2020-12-28 | 2022-02-22 | 蜂巢能源科技有限公司 | Graphene-manganese dioxide flower-ball-shaped negative electrode material, and preparation method and application thereof |
| CN114725356B (en) * | 2022-05-06 | 2023-04-07 | 四川大学 | Mn-based heterogeneous compound/carbon composite material with limited domain structure and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102324318A (en) * | 2011-07-05 | 2012-01-18 | 林洪 | Graphene/multihole MnO2 compound super capacitor electrode material and preparation method thereof |
| CN102468057A (en) * | 2010-11-16 | 2012-05-23 | 中国科学院兰州化学物理研究所 | Preparation method for composite electrode material composed of graphite and manganese dioxide |
-
2015
- 2015-10-13 CN CN201510658466.5A patent/CN105185977B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102468057A (en) * | 2010-11-16 | 2012-05-23 | 中国科学院兰州化学物理研究所 | Preparation method for composite electrode material composed of graphite and manganese dioxide |
| CN102324318A (en) * | 2011-07-05 | 2012-01-18 | 林洪 | Graphene/multihole MnO2 compound super capacitor electrode material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| Sheng Chen等.Graphene Oxide MnO2 Nanocomposites for Supercapacitors.《American Chemical Society》.2010,第4卷(第5期),第2822-2830页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105185977A (en) | 2015-12-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105185977B (en) | A kind of preparation method of lithium ion battery negative material | |
| Xi et al. | Comparative study of the electrochemical performance of LiNi0. 5Co0. 2Mn0. 3O2 and LiNi0. 8Co0. 1Mn0. 1O2 cathode materials for lithium ion batteries | |
| Wang et al. | (NH4) 0.5 V2O5 nanobelt with good cycling stability as cathode material for Li-ion battery | |
| CN102738458B (en) | Surface modification method of lithium-rich cathode material | |
| Son et al. | One-pot synthesis of Fe 2 O 3 yolk–shell particles with two, three, and four shells for application as an anode material in lithium-ion batteries | |
| CN104393277B (en) | Ternary material coated with metal oxide on surface and used for lithium ion battery, and preparation method of ternary material | |
| CN104538207B (en) | TiNb2O7The preparation method of/carbon nano tube compound material and using the material as the lithium-ion capacitor of negative pole | |
| Qiao et al. | Synthesis and electrochemical performance of rod-like LiV3O8 cathode materials for rechargeable lithium batteries | |
| Gao et al. | LiNi0. 5Mn1. 5O4 spinel cathode using room temperature ionic liquid as electrolyte | |
| CN105140492A (en) | Cobalt-nickel lithium manganate composite positive electrode material with surface wrapped by lithium zirconate and preparation method | |
| CN103594707A (en) | High-temperature solid-phase synthesis method of one-dimensional nano-sodion cell anode material NaxMnO2 | |
| Chen et al. | Conventional-and microwave-hydrothermal synthesis of LiMn2O4: Effect of synthesis on electrochemical energy storage performances | |
| Chen et al. | Microwave-hydrothermal synthesis of Fe-based materials for lithium-ion batteries and supercapacitors | |
| CN104979549A (en) | Sheet lithium-enriched manganese-based anode material for lithium-ion battery as well as preparation method and application of sheet lithium-enriched manganese-based anode material | |
| CN104681816A (en) | Lithium-manganese-oxide-based positive electrode active material and preparation method thereof | |
| Jiang et al. | A design strategy of large grain lithium-rich layered oxides for lithium-ion batteries cathode | |
| Zhu et al. | Improved electrochemical performance of CuCrO2 anode with CNTs as conductive agent for lithium ion batteries | |
| Wang et al. | Synthesis and performance of Li1. 5V3O8 nanosheets as a cathode material for high-rate lithium-ion batteries | |
| CN103000879A (en) | Preparation method of spinel type lithium-nickel-manganese oxide with one-dimensional porous structure | |
| CN106935830A (en) | A kind of lithium ion battery composite cathode material and its preparation method and application | |
| Li et al. | Role of Hydrothermal parameters on phase purity of orthorhombic LiMnO2 for use as cathode in Li ion battery | |
| CN104934577B (en) | Mesoporous Li3VO4/C nano ellipsoid composite material embedded into graphene network, and preparation method and application of composite material | |
| JP2015088343A (en) | Method for manufacturing positive electrode active material for nonaqueous electrolyte secondary batteries | |
| CN109449440B (en) | Microporous ultrathin soft carbon nanosheet and preparation method and application thereof | |
| CN103887485A (en) | Doped nanometer vanadium pentoxide membrane electrode material for lithium ion battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221124 Address after: 230000 B-1015, wo Yuan Garden, 81 Ganquan Road, Shushan District, Hefei, Anhui. Patentee after: HEFEI MINGLONG ELECTRONIC TECHNOLOGY Co.,Ltd. Address before: 710021 Shaanxi province Xi'an Weiyang university campus of Shaanxi University of Science and Technology Patentee before: SHAANXI University OF SCIENCE & TECHNOLOGY |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221221 Address after: No. 15, Tianjin Street, Industrial Park, Yongji Economic Development Zone, Yongji County, Jilin City, Jilin Province, 132000 Patentee after: Jilin Juneng new carbon material Co.,Ltd. Address before: 230000 B-1015, wo Yuan Garden, 81 Ganquan Road, Shushan District, Hefei, Anhui. Patentee before: HEFEI MINGLONG ELECTRONIC TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |