CN102637860B - CuO/Cu composite anode material used for lithium ion battery as well as preparation method and application thereof - Google Patents
CuO/Cu composite anode material used for lithium ion battery as well as preparation method and application thereof Download PDFInfo
- Publication number
- CN102637860B CN102637860B CN201210123562.6A CN201210123562A CN102637860B CN 102637860 B CN102637860 B CN 102637860B CN 201210123562 A CN201210123562 A CN 201210123562A CN 102637860 B CN102637860 B CN 102637860B
- Authority
- CN
- China
- Prior art keywords
- cuo
- lithium ion
- composite
- ion battery
- preparation
- 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
- 239000002131 composite material Substances 0.000 title claims abstract description 52
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 31
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000010405 anode material Substances 0.000 title abstract 4
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims abstract description 122
- 239000010949 copper Substances 0.000 claims abstract description 40
- 239000000463 material Substances 0.000 claims abstract description 40
- 239000002245 particle Substances 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000001257 hydrogen Substances 0.000 claims description 18
- 229910052739 hydrogen Inorganic materials 0.000 claims description 18
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 15
- 239000000843 powder Substances 0.000 claims description 8
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 229960004643 cupric oxide Drugs 0.000 claims description 5
- 239000003595 mist Substances 0.000 claims description 4
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 150000002431 hydrogen Chemical class 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000011084 recovery Methods 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 238000003860 storage Methods 0.000 abstract description 4
- 239000007772 electrode material Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 19
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 11
- 229910052744 lithium Inorganic materials 0.000 description 11
- 229910052799 carbon Inorganic materials 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 4
- 230000002427 irreversible effect Effects 0.000 description 4
- 239000011149 active material Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
- 229910012820 LiCoO Inorganic materials 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000006253 efflorescence Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000002389 environmental scanning electron microscopy Methods 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 206010037844 rash Diseases 0.000 description 2
- 238000010532 solid phase synthesis reaction Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000005405 multipole Effects 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000005118 spray pyrolysis Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention belongs to the field of energy materials, and in particular relates to preparation of a novel lithium ion battery electrode material and the storage and conversion of the electrochemical property of the novel lithium ion battery electrode material. The preparation method of the CuO/Cu composite anode material used for the lithium ion battery is characterized in that the composite anode material adopts copper oxide powder of which the particle size is 30nm-10mu m as a raw material; the raw material is reduced for 10-120 minutes under the hydrogenous reducing mixed gas atmosphere at the temperature of 50-200DEG C in an atmosphere furnace; and the content of copper in the composite material accounts for 0.5-40wt.% of the composite material. The preparation method of the CuO/Cu composite lithium-ion anode material has the advantages of abundant raw material resource, low cost, simple preparation equipment and high yield and is suitable for scale production.
Description
Technical field
The invention belongs to field of energy source materials.Be specifically related to the preparation of new type lithium ion battery electrode material and the storage of electrochemical energy and conversion.
Technical background
Along with day by day increase and the pay attention to day by day to environmental protection requirement of modern society to energy demand; the contradiction of the limited reserves of tradition fossil energy and the development of its environmental pollution and modern society is increasingly sharpened; lithium ion battery is as the green secondary power supply growing up over a kind of nearly 20 years; because its energy density is high, have extended cycle life, self discharge is little, memory-less effect, advantages of environment protection, in the power supply of the small portable such as notebook computer, mobile phone movable electrical appliances, be used widely.At present the demand of the secondary power supply of high-energy-density to safety, environmental protection of the deposit of electric automobile, hybrid-electric car, electric bicycle, solar energy and wind energy and conversion, electric tool and high power density increases day by day, and wherein lithium ion battery has the potentiality that meet its application requirements.The positive electrode of commercial Li-ion batteries is respectively LiCoO at present
2with graphitic carbon material, its theoretical capacity score of the game is not about 140 mAh/g and 372 mAh/g, and they can't meet the requirement of high power density, high-energy-density on capacity.As the LiCoO of positive electrode
2because it is containing Co noble metal, the cost of raw material is high, and it is containing toxic side effect, in fail safe, also has problems.As the graphitic carbon of negative material, its density only has 2.2 – 2.4 g/cm
3, this has reduced the volume capacity of battery to a great extent, particularly unfavorable to the bulk density of large-sized battery.Thereby no matter for positive electrode or negative material, countries in the world have all been dropped into a large amount of man power and materials and have been researched and developed widely in recent years.
Multiple 3d transition metal (comprising Ti, Fe, Cu, Co and Ni etc.) oxide has the characteristic of high power capacity when as lithium ion battery negative material.Wherein CuO is 674 mAh/g as its theoretical capacity of lithium ion battery negative material, is the more than 2 times of graphite cathode material.Its weight density is 6.32 g/cm
3, be nearly 3 times of graphite, thereby it also has the large advantage of storage lithium bulk density as lithium ion battery negative material.In addition, CuO also has easy storage and the advantage such as nontoxic, because of but a kind of lithium ion battery negative material of new generation that has development and application potential.
CuO, mainly by the method system of chemical reaction, mainly contains liquid phase method and the large class of solid phase method two at present.The method of liquid phase method is numerous, and if any the precipitation method, spray pyrolysis, the hot method of alcohol, sol-gal process and template etc., the whole bag of tricks differs from one another and advantage.In solid phase method, will react raw material obtains by simple chemical reaction under room temperature or heat treated condition.Different-shape prepared by distinct methods and the CuO of size show the chemical property that difference is very large.
CuO is that cyclical stability is poor and irreversible capacity is high first for the disadvantage of lithium ion battery negative material.Wherein the poor main cause of cyclical stability is that CuO has produced approximately 170% volumetric expansion in embedding lithium process, produces very large stress, thereby makes the efflorescence of CuO active material and lose effective contact, and the utilance of active material is constantly reduced; The main cause that irreversible capacity is large is first CuO in its reaction of embedding lithium process first:
In Li
2o part is irreversible.Reduce CuO particle size to nanosized, adopt one-dimensional nano structure etc., be conducive to improve the release of the stress that CuO produces due to removal lithium embedded in cyclic process, can effectively improve the cyclical stability of CuO.By CuO and other Material cladding, as compound to alleviate the volumetric expansion of CuO with the graphite of 3D structure, and form Li in the compound promotion CuO of Ni cyclic process first
2o decomposition waits the cyclical stability that is also conducive to improve CuO.
Summary of the invention
In order to improve the cyclical stability of CuO; an object of the present invention is to provide the preparation method of the CuO/Cu composite negative pole material that a kind of lithium ion battery uses and the composite negative pole material of being prepared by the method; method condition and the technique of preparing CuO/Cu composite material of the present invention is simple and easy to control, is applicable to large-scale production.Another object of the present invention is to provide the lithium ion of composite negative pole material of the above-mentioned preparation of application or lighium polymer once and secondary cell.
In order to realize first above-mentioned object, the present invention has adopted following technical scheme:
The preparation method of the CuO/Cu composite negative pole material that a kind of lithium ion battery is used, the employing particle size of this composite negative pole material is that the cupric oxide powder of 30nm～10 μ m is raw material, by raw material in atmosphere furnace, at the temperature of 50～200 DEG C, containing reducing in hydrogen reduction mixed-gas atmosphere, recovery time is 10～120 minutes, and in composite material, the content of copper is 0.5～40wt.% of composite material percentage by weight.
As preferably, in above-mentioned composite material, the content of copper is 1～10wt.% of composite material percentage by weight.
As preferably, above-mentioned cupric oxide powder particle size is 50nm～10 μ m.
As preferably, above-mentioned reduction temperature is 80～120 DEG C.
As preferably, above-mentioned is hydrogen, nitrogen hydrogen or argon hydrogen mixture containing hydrogen reduction mist, and wherein in mist, the content of hydrogen is 5～50%.
In order to realize second above-mentioned object, the present invention has adopted following technical scheme:
Once and secondary cell, the negative material of this battery adopts above-mentioned composite negative pole material for lithium ion or lighium polymer.
The present invention is by nanometer to the cupric oxide powder of micron-scale is reduced in reducing atmosphere, and by the regulation and control to oxidizing temperature and time, forms one deck Cu at CuO particle surface, forms CuO/Cu composite material.Due to the superior electrical conductivity of Cu, improve CuO electrically contacting in cyclic process, the electronic conductivity that is conducive to improve the utilance of active material and improves material.The good toughness of Cu, alleviates the stress that CuO produces in removal lithium embedded process to a certain extent, reduces its efflorescence.In addition, the surface coated Cu of CuO also helps the Li that promotes that CuO forms in embedding lithium process first
2the decomposition of O, reduces the irreversible capacity first of electrode.Thereby the CuO/Cu composite material that the present invention obtains has good comprehensive electrochemical.The method of preparing CuO/Cu compound lithium ion multipole material of the present invention, enrich in the raw material source of employing, cost is low, and Preparation equipment is simple, and productive rate is high, is applicable to large-scale production.
Taking CuO/Cu composite material of the present invention as negative material, taking lithium sheet as electrode is prepared into button cell, show good comprehensive electrochemical.Wherein, in composite material, the content of Cu increases, and is conducive to battery and obtains better cyclical stability, suitably reduces the specific discharge capacity that the content of Cu in composite material is conducive to improve electrode.
Brief description of the drawings
Fig. 1 is the embodiment 1 – 3 raw-material ESEM pattern of CuO used.
Fig. 2 is the ESEM pattern of the CuO/Cu composite material that obtains of embodiment 2.
Fig. 3 is the CuO/Cu composite material of embodiment 1,2 and 3 acquisitions and the X-ray diffracting spectrum of raw materials CuO thereof.
Fig. 4 is that collection of illustrative plates is analyzed in the Rietveld refine of the CuO/Cu composite material X-ray diffraction that obtains of embodiment 2.
Fig. 5, Fig. 6 are respectively first three charging and discharging curves of the CuO/Cu composite material that obtains of embodiment 1 and 2.
Fig. 7 is the cycle performance curve of the CuO/Cu composite material that obtains of embodiment 3 and initial CuO.
Embodiment
The present invention may be better understood for following examples, but the present invention is not limited to following examples.
embodiment 1
Get the business CuO powder that a certain amount of particle size is about 50 nm, then at the temperature of 80 DEG C, in hydrogen, be incubated 30 minutes, obtain CuO/Cu composite material.In composite material, the content of Cu is analyzed and is about 0.5wt.% through the Rietveld of X-ray diffraction refine.
This composite material is for lithium ion battery negative material, taking lithium sheet as electrode is prepared into button cell, be 67 mA/g in measuring current, voltage range is under the condition of 20 mV-3V, the reversible capacity first of battery is 500 mAh/g, compare high approximately 50 mAh/g of CuO original material without reduction, and improved the cyclical stability of material.
Getting a certain amount of particle size is the business CuO powder of 50 nm, in the hydrogen atmosphere of 100 DEG C, is incubated 30 minutes, obtains CuO/Cu composite material.In composite material, the content of Cu is analyzed and is about 5 wt.% through the Rietveld of X-ray diffraction refine.
This composite material is for lithium ion battery negative material, taking lithium sheet as electrode is prepared into button cell, be 67 mA/g in measuring current, voltage range is under the condition of 20 mV – 3V, the reversible capacity first of electrode reaches 515 mAh/g, and capacity further rises to 550 mAh/g after initial several circulations, than high approximately 100 mAh/g of the CuO original material without reduction, and improve the cyclical stability of material.
embodiment 3
Getting a certain amount of particle size is the business CuO powder of 50 nm, then at the temperature of 120 DEG C, in hydrogen atmosphere, is incubated 30 minutes, obtains CuO/Cu composite material.In composite material, the content of Cu is analyzed and is about 38 wt.% through the Rietveld of X-ray diffraction refine.
This composite material is for lithium ion battery negative material, taking lithium sheet as electrode is prepared into button cell, be 67 mA/g in measuring current, voltage range is under the condition of 20 mV-3V, the reversible capacity first of electrode is 280 mAh/g, and composite material has excellent cyclical stability.
embodiment 4
Get the business CuO that a certain amount of particle size is approximately 10 μ m, then at the temperature of 100 DEG C, in the mixed atmosphere of 30 vol% hydrogen and argon gas, reduce 60 minutes, obtain CuO/Cu composite material, can be used for lithium ion battery negative material.
embodiment 5
Get the business CuO that a certain amount of particle size is approximately 30 nm, then at the temperature of 80 DEG C, in the mixed atmosphere of 5 vol% hydrogen and nitrogen, reduce 120 minutes, obtain CuO/Cu composite material.This composite material, for lithium ion battery negative material, taking lithium sheet as electrode is prepared into button cell, is 67 mA/g in measuring current, and voltage range is under the condition of 20 mV-3V, and material list reveals high capacity and good cycle performance.
embodiment 6
Get the business CuO that a certain amount of particle size is approximately 500 nm, then at the temperature of 120 DEG C, in hydrogen atmosphere, reduce 10 minutes, obtain CuO/Cu composite material, can be used for lithium ion battery negative material.
Claims (5)
1. the preparation method of the CuO/Cu composite negative pole material that a lithium ion battery is used, it is characterized in that: the employing particle size of this composite negative pole material is that the cupric oxide powder of 30nm～10 μ m is raw material, by raw material in atmosphere furnace, at the temperature of 80～120 DEG C, containing reducing in hydrogen reduction mixed-gas atmosphere, recovery time is 10～120 minutes, is hydrogen, nitrogen hydrogen or argon hydrogen mixture containing hydrogen reduction mist, and wherein in mist, the content of hydrogen is 5～50%; In composite material, the content of copper is 0.5～40wt.% of composite material percentage by weight.
2. the preparation method of the CuO/Cu composite negative pole material that a kind of lithium ion battery according to claim 1 is used, is characterized in that: in composite material, the content of copper is 1～10wt.% of composite material percentage by weight.
3. the preparation method of the CuO/Cu composite negative pole material that a kind of lithium ion battery according to claim 1 is used, is characterized in that: cupric oxide powder particle size is 50nm～10 μ m.
4. the CuO/Cu composite negative pole material that the lithium ion battery making according to the preparation method described in claim 1 ~ 3 any one claim is used.
5. lithium ion or lighium polymer once and secondary cell, is characterized in that: the negative material of this battery adopts composite negative pole material claimed in claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210123562.6A CN102637860B (en) | 2012-04-25 | 2012-04-25 | CuO/Cu composite anode material used for lithium ion battery as well as preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210123562.6A CN102637860B (en) | 2012-04-25 | 2012-04-25 | CuO/Cu composite anode material used for lithium ion battery as well as preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102637860A CN102637860A (en) | 2012-08-15 |
| CN102637860B true CN102637860B (en) | 2014-06-04 |
Family
ID=46622167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210123562.6A Active CN102637860B (en) | 2012-04-25 | 2012-04-25 | CuO/Cu composite anode material used for lithium ion battery as well as preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102637860B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106531966B (en) * | 2016-12-12 | 2019-06-11 | 北京科技大学 | Nanometer and its is applied Cu@CuO material preparation method in lithium ion battery |
| CN108987703A (en) * | 2018-07-17 | 2018-12-11 | 澳洋集团有限公司 | A kind of preparation method based on copper oxide composite lithium ion battery negative electrode material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1920075A (en) * | 2006-09-08 | 2007-02-28 | 北京科技大学 | Method of preparing tin copper alloy material used for negative electrode of lithium ion battery |
| CN102185143A (en) * | 2011-04-02 | 2011-09-14 | 浙江大学 | Transition metal oxide/ graphene composite material and preparation method thereof |
| CN102339982A (en) * | 2011-10-18 | 2012-02-01 | 浙江大学 | Anode of lithium ion battery, preparation method and battery using anode |
| CN102394305A (en) * | 2011-11-30 | 2012-03-28 | 浙江大学 | Foamy copper oxide/copper lithium ion battery anode and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006109947A1 (en) * | 2005-04-01 | 2006-10-19 | Lg Chem, Ltd. | Electrode for lithium secondary battery comprising electrode additive and lithium secondary battery using the same |
-
2012
- 2012-04-25 CN CN201210123562.6A patent/CN102637860B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1920075A (en) * | 2006-09-08 | 2007-02-28 | 北京科技大学 | Method of preparing tin copper alloy material used for negative electrode of lithium ion battery |
| CN102185143A (en) * | 2011-04-02 | 2011-09-14 | 浙江大学 | Transition metal oxide/ graphene composite material and preparation method thereof |
| CN102339982A (en) * | 2011-10-18 | 2012-02-01 | 浙江大学 | Anode of lithium ion battery, preparation method and battery using anode |
| CN102394305A (en) * | 2011-11-30 | 2012-03-28 | 浙江大学 | Foamy copper oxide/copper lithium ion battery anode and preparation method thereof |
Non-Patent Citations (6)
| Title |
|---|
| A. Rodriguez et. al..Reduction of CuO in H2: in situ time-resolved XRD studies.《Catalysis Letters》.2003,第85卷(第3-4期),247-254. * |
| acute * |
| Jose´ |
| Jose& * |
| 冯冉 等.纳米CuO/Cu负极材料的热氧化制备及其结构和电化学性能.《材料科学与工程学报》.2012,第30卷(第2期),245-250. |
| 纳米CuO/Cu负极材料的热氧化制备及其结构和电化学性能;冯冉 等;《材料科学与工程学报》;20120420;第30卷(第2期);摘要，第246页右栏第1至第247页第1段 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102637860A (en) | 2012-08-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Deng et al. | Direct recovery and efficient reutilization of degraded ternary cathode materials from spent lithium-ion batteries via a homogeneous thermochemical process | |
| Karabelli et al. | Sodium-based batteries: in search of the best compromise between sustainability and maximization of electric performance | |
| CN109148838B (en) | Anode material of lithium-ion battery and its preparation method and application | |
| CN104617283B (en) | The preparation method of a kind of lithium-sulfur cell fibre reinforced three-dimensional grapheme-sulphur positive electrode and the preparation method of positive pole | |
| WO2018095202A1 (en) | Composite lithium battery and preparation method therefor | |
| CN101931073B (en) | Preparation method of lithium iron phosphate/carbon composite cathode material | |
| US20220077456A1 (en) | Core-shell nickel ferrite and preparation method thereof, nickel ferrite@c material and preparation method and application thereof | |
| Muchuweni et al. | Lithium-ion batteries: Recent progress in improving the cycling and rate performances of transition metal oxide anodes by incorporating graphene-based materials | |
| CN102751489B (en) | Method for preparing anode material of lithium ion battery | |
| CN101222038A (en) | Production method of lithium ion power cell ferrous phosphate lithium composite material | |
| CN101409344A (en) | Lithium ion battery cathode material and preparation method thereof | |
| CN104868159A (en) | Preparation method for modified graphite anode material | |
| Li et al. | Hydrothermal synthesis of nano spheroid‐like ZnMn2O4 materials as high‐performance anodes for lithium‐ion batteries: Prepared nano ZnMn2O4 from spent zinc‐manganese batteries | |
| Guo et al. | ZnO–SnO2/graphene composites as high capacity anode materials for lithium ion batteries | |
| CN105870423A (en) | Preparation method of silicon-based negative electrode material for lithium ion battery | |
| CN104577047A (en) | Binary sulfide and C nano-composite negative pole material and preparation method thereof | |
| Ni et al. | Low temperature synthesis of Fe3O4 micro-spheres and its application in lithium ion battery | |
| CN102856539A (en) | Composite anode material based on CuO for lithium ion battery, its preparation method and application | |
| CN101483237A (en) | Preparation of positive pole material lithium ionic phosphate of long cycle life electrokinetic cell | |
| CN104868113B (en) | Preparation method of metallic oxide lithium ion battery cathode material | |
| Bu et al. | 1T-VS2@ V2O3 Synergistic Nanoarchitecture-Based Lamellar Clusters as the High Conductivity Cathodes of Thermal Batteries | |
| CN102637860B (en) | CuO/Cu composite anode material used for lithium ion battery as well as preparation method and application thereof | |
| CN103367728A (en) | Activated natural graphite modified Li2FeSiO4 cathode material and its preparation method | |
| CN106542567A (en) | A kind of preparation method of lithium ion battery negative material nano-ZnO | |
| CN110061198B (en) | Silicon-carbon composite negative electrode material and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |