CN101913556A - Preparation method of cobalt-silicon oxide/carbon nanocomposite - Google Patents
Preparation method of cobalt-silicon oxide/carbon nanocomposite Download PDFInfo
- Publication number
- CN101913556A CN101913556A CN2010102528841A CN201010252884A CN101913556A CN 101913556 A CN101913556 A CN 101913556A CN 2010102528841 A CN2010102528841 A CN 2010102528841A CN 201010252884 A CN201010252884 A CN 201010252884A CN 101913556 A CN101913556 A CN 101913556A
- Authority
- CN
- China
- Prior art keywords
- cobalt
- silica
- solution
- preparation
- composite material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
Abstract
The invention discloses a preparation method of a cobalt-silicon oxide/carbon nanocomposite, belonging to the field of electrochemical techniques. The preparation method comprises the following steps of: mixing tetraethoxysilane, polyvinylpyrrolidone, a carbon source, a cobalt source and deionized water, and uniformly stirring to prepare a solution A; mixing sodium hydroxide, sodium borohydride and deionized water, and uniformly stirring to prepare a solution B; adding the solution B into the solution A, uniformly stirring, and then pouring the mixture into a water heating pot; placing the water heating pot in an oven to obtain a product, then washing the product with deionized water and absolute ethyl alcohol, filtering, and then placing the product in the oven for drying; and calcining the obtained powder to obtain the cobalt-silicon oxide/carbon nanocomposite. The method of the invention has the advantages of strong operability, good reproducibility and stable product quality. The cobalt-silicon oxide/carbon nanocomposite prepared by the method of the invention has high electric conductivity as well as high reversible capacity and favorable cycle performance when being applied in lithium ion batterys.
Description
Technical field
The invention belongs to technical field of electrochemistry, be specifically related to a kind of method by Hydrothermal Preparation cobalt-silica/carbon nano-composite material.
Technical background
Lithium ion battery is the highest a kind of portable chemical power supply of present specific energy.Current, the negative material that the commercial li-ion battery uses concentrates on material with carbon element, but carbon negative pole material exist specific capacity low, easily shortcomings such as organic solvent embeds altogether take place, influenced its application in high specific energy, high power type battery.Studies show that when the specific capacity of negative material can significantly improve total specific capacity of lithium ion battery during at 1000～1200mAh/g, therefore the research and development of novel negative material get most of the attention.Silicon has caused more and more insiders' concern as the highest negative material of theoretical capacity in the various alloys of research at present, and lithium can obtain different products with pasc reaction, as Li
12Si
7, Li
13Si
4, Li
7Si
3, Li
22Si
5Deng, Li
22Si
5Theory insertion amount reach 4200mAh/g, the termination current potential that lithium inserts silicon can be controlled at more than the 0.2V, can significantly improve the capacity and the security performance (S.Bourderaus of battery, T.Brousse, D.M.Schleich.Amorphous silicon as a possible anode material for Li-ion batteries.Journal ofPower Sources, 1999,81 (81-82): 233～236).But, the Si sill is taking off, will experience serious volumetric expansion and contraction (volume change: 280%～300%) in the cyclic process of embedding lithium, cause the destruction and the mechanical efflorescence of material structure, cause between electrode material and the separating of electrode material and collector, and then lose and electrically contact, cause capacity to be decayed rapidly.By alloying (G.X.Wang, L.Sun, D.H.Bradhust, et al..Nanocrystalline NiSi alloy as an anode material for lithium-ionbatteries.Journal of Alloys and Compounds, 2000,306:249～252) method can be improved cycle performance to a certain extent, but does not have to solve the problem of Si sill cyclical stability at all.Adopted nanometer oxide particle afterwards, because silica is in embedding lithium process first, form lithia, and the variation that lithia can slow down volume in the charge and discharge process as inert fraction improves stability of structure and cycle performance (J.Yang, Y.Takeda, N.Imanishi, et al..SiOx-based anodes forsecondary lithium batteries.Solid State Ionics, 2002,152-153:125-129).Yet easily reunite between the nano particle, the reunion of the electricity of nano particle makes material lose nano-meter characteristic gradually in cyclic process, capacity attenuation is rapid, and silica irreversible capacity is bigger first, so the nano silicon oxide negative material still has sizable distance from practicability.Therefore the present invention is directed to problems such as Si sill cyclical stability is poor, enclosed pasture efficient is low first, carrying out research extensively and profoundly aspect design of material composition and the nano grain surface modification, design has also prepared Si base nano composite anode material: carbon coating cobalt-silica negative material, this material passes through Hydrothermal Preparation, its Stability Analysis of Structures, even particle distribution, security are good, the specific capacity height, enclosed pasture efficient height is a kind of rising lithium ion battery height ratio capacity negative material first.And adopt cobalt-silica/carbon composite as lithium ion battery negative material, be assembled into lithium ion battery.
Summary of the invention
The objective of the invention is to: the preparation method of a kind of cobalt-silica/carbon nano-composite material is provided, is used to produce cobalt-silica/carbon nano-composite material.
Purpose of the present invention realizes in the following manner:
The preparation method of a kind of cobalt-silica/carbon nano-composite material, the concrete preparation process of this method is as follows:
(1) obtain solution A: positive silicic acid vinegar ethyl ester, polyvinylpyrrolidone, carbon source, cobalt source and deionized water are mixed, stir, make solution A.Wherein, the volume ratio of positive silicic acid vinegar ethyl ester and deionized water is 1: 10-1: 30, and the mass ratio of polyvinylpyrrolidone and silica is 2: 1-1: 3, the mol ratio of carbon source and silica is 1: 1-10: 1, the mol ratio of cobalt source and silica is 1: 2-1: 6.
Obtain solution B: NaOH, sodium borohydride and deionized water are mixed, stir, make solution B.Wherein, the mol ratio in NaOH and cobalt source is 2: 1-5: 1, the mol ratio in sodium borohydride and cobalt source is 2: 1-5: 1, the mass ratio of NaOH and deionized water is 1: 5-1: 80;
(2) solution B is joined solution A, continue to be stirred to evenly, pour in the hydro-thermal jar;
(3) the hydro-thermal jar is placed baking oven, 130-180 ℃ is incubated 5-48 hour;
(4) with step (3) products therefrom with deionized water and absolute ethanol washing, filtration after, place baking oven 80-120 ℃ oven dry;
(5) heat treatment: the powder of step (4) gained in inert atmosphere, under 400-1000 ℃ of temperature calcination 0.5-10 hour, is obtained cobalt-silica/carbon nano-composite material.
Carbon source in the described step (1) is sucrose, glucose, starch, epoxy resin or phenolic resins; Described cobalt source is cobalt nitrate, cobalt chloride, cobalt acetate or cobalt oxalate.
In the described step (2), solution B is poured in the solution A fast or with solution B with 15-60 drip/speed of min is added dropwise to solution A.When being poured into solution B in the solution A fast, react more violent, product crystal grain is less.By cobalt-silica/carbon nano-composite material that preparation method of the present invention makes, the particle diameter of its particle is tens to the hundreds of nanometer, can be used as the application of lithium ion battery negative material.
Cobalt-silica that the preparation method of described cobalt-silica/carbon nano-composite material makes/carbon nano-composite material, its particle diameter are 10～900nm.
The invention has the advantages that:
(1) this method makes the nano material after the finishing embed and deviate from the process at lithium, avoid the reunion between the nano particle, improved the cyclical stability of electrode material, improve conductivity of electrolyte materials, and cobalt mix the irreversible capacity first that has reduced silica, improved the efficient of enclosed pasture first of material.
(2) this method embeds and takes off in the embedding process at lithium ion, suppresses the volumetric expansion of silicon materials, makes lithium ion battery have high reversible capacity and excellent cycle performance.
(3) the inventive method is workable, favorable reproducibility, and products obtained therefrom steady quality.And material synthesis is simple, when being used for lithium ion battery negative material, specific capacity is higher, stable cycle performance.
Description of drawings
Fig. 1 is the cycle performance curve of the synthetic cobalt-silica/carbon nano-composite material of hydro-thermal method of the present invention.
The specific embodiment
Embodiment 1
Positive silicic acid vinegar ethyl ester, 1.5g polyvinylpyrrolidone, 11.4g sucrose, 1.58gCoCl with 7.5ml
26H
2O and 100ml deionized water mix, stir, make solution A, 0.531g NaOH, 0.55g sodium borohydride and 20ml deionized water are mixed, stir, make solution B, the speed of solution B with 30/min is joined in the solution A, continue to stir, pour in the hydro-thermal jar, and place baking oven, 140 ℃ are incubated 24 hours, after products therefrom usefulness deionized water and absolute ethanol washing, the filtration, place 80 ℃ of oven dry of baking oven, the powder of gained in inert atmosphere, 500 ℃ of following calcination 3 hours, finally obtain cobalt-silica/carbon nano-composite material.
The conductive agent acetylene black that synthetic material is added 15wt%, the binding agent PVDF of 15wt% makes slurry, evenly be applied on the Copper Foil, after the oven dry, block circular pole piece, form test cell, carry out the constant current charge-discharge experiment with lithium metal, charging and discharging currents is 100mA/g, and the charging/discharging voltage scope is controlled between the 0.01-3.0V.The maximum reversible capacity of cobalt-silica/carbon negative pole material of preparation is about 900mAh/g, and the specific capacity that circulates after 50 times is 775mAh/g, and capability retention is 81%.Be illustrated in figure 1 as the cycle performance curve of the synthetic cobalt-silica/carbon nano-composite material of hydro-thermal method of the present invention.
Embodiment 2
Positive silicic acid vinegar ethyl ester with 7.5ml, 1.5g polyvinylpyrrolidone, 11.4g starch, 4.15g four hydration cobalt acetates and 100ml deionized water mix, stir, make solution A, with 1.33g NaOH, 1.26g sodium borohydride and 20ml deionized water mix, stir, make solution B, solution B is poured into solution A fast, continues to stir, pour in the hydro-thermal jar, and place baking oven, 160 ℃ are incubated 12 hours, products therefrom deionized water and absolute ethanol washing, after the filtration, place 100 ℃ of oven dry of baking oven, the powder of gained is in inert atmosphere, 600 ℃ of following calcination 2 hours finally obtain cobalt-silica/carbon nano-composite material.
The conductive agent acetylene black that synthetic material is added 15wt%, the binding agent PVDF of 15wt% makes slurry, evenly be applied on the Copper Foil, after the oven dry, block circular pole piece, form test cell, carry out the constant current charge-discharge experiment with lithium metal, charging and discharging currents is 100mA/g, and the charging/discharging voltage scope is controlled between the 0.01-3.0V.The maximum reversible capacity of cobalt-silica/carbon negative pole material of preparation is about 484mAh/g, and the specific capacity that circulates after 50 times is 396mAh/g, and capability retention is 81.8%.
Embodiment 3
Positive silicic acid vinegar ethyl ester, 1.5g polyvinylpyrrolidone, 19.6g glucose, 1.93gCo (NO with 7.5ml
3)
26H
2O and 110ml deionized water mix, stir, make solution A, 0.531g NaOH, 0.55g sodium borohydride and 15ml deionized water are mixed, stir, make solution B, the speed of solution B with 45/min is joined in the solution A, continue to stir, pour in the hydro-thermal jar, and place baking oven, 180 ℃ are incubated 10 hours, after products therefrom usefulness deionized water and absolute ethanol washing, the filtration, place 120 ℃ of oven dry of baking oven, the powder of gained in inert atmosphere, 700 ℃ of following calcination 1 hour, finally obtain cobalt-silica/carbon nano-composite material.
The conductive agent acetylene black that synthetic material is added 15wt%, the binding agent PVDF of 15wt% makes slurry, evenly be applied on the Copper Foil, after the oven dry, block circular pole piece, form test cell, carry out the constant current charge-discharge experiment with lithium metal, charging and discharging currents is 100mA/g, and the charging/discharging voltage scope is controlled between the 0.01-3.0V.The maximum reversible capacity of cobalt-silica/carbon negative pole material of preparation is about 480mAh/g, and the specific capacity that circulates after 50 times is 384mAh/g, and capability retention is 80%.
Claims (6)
1. the preparation method of cobalt-silica/carbon nano-composite material is characterized in that, concrete preparation process is as follows:
(1) obtain solution A: positive silicic acid vinegar ethyl ester, polyvinylpyrrolidone, carbon source, cobalt source and deionized water are mixed, stir, make solution A; Wherein, the volume ratio of described positive silicic acid vinegar ethyl ester and deionized water is 1: 10-1: 30, and the mass ratio of polyvinylpyrrolidone and silica is 2: 1-1: 3, the mol ratio of carbon source and silica is 1: 1-10: 1, the mol ratio of cobalt source and silica is 1: 2-1: 6;
Obtain solution B: NaOH, sodium borohydride and deionized water are mixed, stir, make solution B; Wherein, the mol ratio in the NaOH and the source of boring is 2: 1-5: 1, the mol ratio in sodium borohydride and cobalt source is 2: 1-5: 1, the mass ratio of NaOH and deionized water is 1: 5-1: 80;
(2) solution B is joined solution A, continue to be stirred to evenly, pour in the hydro-thermal jar;
(3) the hydro-thermal jar is placed baking oven, 130-180 ℃ is incubated 5-48 hour;
(4) with step (3) products therefrom with deionized water and absolute ethanol washing, filtration after, place baking oven 80-120 ℃ oven dry;
(5) heat treatment: the powder of step (4) gained in inert atmosphere, under 400-1000 ℃ of temperature calcination 0.5-10 hour, is obtained cobalt-silica/carbon nano-composite material.
2. the preparation method of cobalt-silica according to claim 1/carbon nano-composite material is characterized in that, the carbon source in the described step (1) is sucrose, glucose, starch, epoxy resin or phenolic resins; Described cobalt source is cobalt nitrate, cobalt chloride, cobalt acetate or cobalt oxalate.
3. the preparation method of cobalt-silica according to claim 1/carbon nano-composite material is characterized in that, in the described step (2), solution B is poured in the solution A fast.
4. the preparation method of cobalt-silica according to claim 1/carbon nano-composite material is characterized in that, in the described step (2), with solution B with 15-60 drip/speed of min is added dropwise to solution A.
5. the preparation method of cobalt-silica according to claim 1/carbon nano-composite material, it is characterized in that, cobalt-silica that the preparation method of described cobalt-silica/carbon nano-composite material makes/carbon nano-composite material, its particle diameter are tens to the hundreds of nanometer.
6. the preparation method of cobalt-silica/carbon nano-composite material according to claim 1 or 5, it is characterized in that cobalt-silica that the preparation method of described cobalt-silica/carbon nano-composite material makes/carbon nano-composite material is as the application of lithium ion battery negative material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102528841A CN101913556B (en) | 2010-08-13 | 2010-08-13 | Preparation method of cobalt-silicon oxide/carbon nanocomposite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102528841A CN101913556B (en) | 2010-08-13 | 2010-08-13 | Preparation method of cobalt-silicon oxide/carbon nanocomposite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101913556A true CN101913556A (en) | 2010-12-15 |
| CN101913556B CN101913556B (en) | 2013-04-03 |
Family
ID=43321242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102528841A Active CN101913556B (en) | 2010-08-13 | 2010-08-13 | Preparation method of cobalt-silicon oxide/carbon nanocomposite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101913556B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646820A (en) * | 2012-05-04 | 2012-08-22 | 南开大学 | Negative material for lithium ion secondary batteries and preparing method thereof |
| CN103703592A (en) * | 2011-07-29 | 2014-04-02 | 住友电木株式会社 | Method for producing carbon material for lithium ion secondary batteries, carbon material for lithium ion secondary batteries, negative electrode active material for lithium ion secondary batteries, composition, carbon composite material for negative |
| CN103872303A (en) * | 2012-12-10 | 2014-06-18 | 信越化学工业株式会社 | Silicon oxide and method for producing the same, negative electrode, and lithium ion secondary battery and electrochemical capacitor |
| CN104941584A (en) * | 2015-07-06 | 2015-09-30 | 河北工业大学 | SiO2/C composite material for adsorbing heavy metal ions in water body and application thereof |
| CN105006575A (en) * | 2015-06-23 | 2015-10-28 | 西安博纳材料科技有限公司 | Method for preparing metallic oxide-carbon composite material |
| CN105742589A (en) * | 2016-02-29 | 2016-07-06 | 中国有色桂林矿产地质研究院有限公司 | Silicon-cobalt-carbon composite material for negative electrode of lithium ion battery and preparation method of silicon-cobalt-carbon composite material |
| CN108232144A (en) * | 2017-12-25 | 2018-06-29 | 北方奥钛纳米技术有限公司 | A kind of modified silicon-carbon composite electrode material and preparation method thereof |
| CN110284146A (en) * | 2019-06-21 | 2019-09-27 | 青岛科技大学 | Load selenium in situ adulterates molybdenum disulfide/transition metal boride nano material preparation and application |
| CN110635129A (en) * | 2019-08-21 | 2019-12-31 | 合肥国轩高科动力能源有限公司 | Preparation method and application of novel SiO/C/Cu composite material |
| CN111029554A (en) * | 2019-12-25 | 2020-04-17 | 湖北万润新能源科技发展有限公司 | Preparation method and application of in-situ carbon-coated silicon dioxide-carbon composite material |
| CN111446440A (en) * | 2020-05-22 | 2020-07-24 | 扬州大学 | Nitrogen-doped carbon-coated hollow mesoporous silica/cobalt nano composite material and lithium ion battery cathode material thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101188288A (en) * | 2007-10-29 | 2008-05-28 | 北京科技大学 | A making method for tin, cobalt and carbon compound cathode materials of lithium ion battery |
-
2010
- 2010-08-13 CN CN2010102528841A patent/CN101913556B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101188288A (en) * | 2007-10-29 | 2008-05-28 | 北京科技大学 | A making method for tin, cobalt and carbon compound cathode materials of lithium ion battery |
Non-Patent Citations (3)
| Title |
|---|
| CANDACE K. CHAN ET AL.: "Solution-Grown Silicon Nanowires for Lithium-Ion Battery Anodes", 《ACSNANO》, vol. 4, no. 3, 4 March 2010 (2010-03-04), pages 1443 - 1450, XP055120894, DOI: 10.1021/nn901409q * |
| YONG-SHENG HU ET AL.: "Superior Storage Performance of a Si@SiOx/C Nanocomposite as Anode Material for Lithium-Ion Batteries", 《ANGEW. CHEM. INT. ED.》, vol. 47, 31 December 2008 (2008-12-31), pages 1645 - 1649, XP055043259, DOI: 10.1002/anie.200704287 * |
| 徐宇虹等: "碳热还原法制备锂离子电池Si-Co-C 复合负极材料", 《2009年第十五次全国电化学学术会议论文集》, 1 December 2009 (2009-12-01), pages 1 * |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103703592A (en) * | 2011-07-29 | 2014-04-02 | 住友电木株式会社 | Method for producing carbon material for lithium ion secondary batteries, carbon material for lithium ion secondary batteries, negative electrode active material for lithium ion secondary batteries, composition, carbon composite material for negative |
| CN102646820B (en) * | 2012-05-04 | 2014-05-07 | 南开大学 | Negative material for lithium ion secondary batteries and preparing method thereof |
| CN102646820A (en) * | 2012-05-04 | 2012-08-22 | 南开大学 | Negative material for lithium ion secondary batteries and preparing method thereof |
| CN103872303A (en) * | 2012-12-10 | 2014-06-18 | 信越化学工业株式会社 | Silicon oxide and method for producing the same, negative electrode, and lithium ion secondary battery and electrochemical capacitor |
| CN103872303B (en) * | 2012-12-10 | 2018-05-11 | 信越化学工业株式会社 | Silica material, manufacture method, negative electrode, lithium ion secondary accumulator battery and electrochemical capacitor |
| CN105006575A (en) * | 2015-06-23 | 2015-10-28 | 西安博纳材料科技有限公司 | Method for preparing metallic oxide-carbon composite material |
| CN104941584A (en) * | 2015-07-06 | 2015-09-30 | 河北工业大学 | SiO2/C composite material for adsorbing heavy metal ions in water body and application thereof |
| CN105742589B (en) * | 2016-02-29 | 2018-09-18 | 中国有色桂林矿产地质研究院有限公司 | A kind of negative electrode of lithium ion battery silicon-cobalt-carbon composite and preparation method thereof |
| CN105742589A (en) * | 2016-02-29 | 2016-07-06 | 中国有色桂林矿产地质研究院有限公司 | Silicon-cobalt-carbon composite material for negative electrode of lithium ion battery and preparation method of silicon-cobalt-carbon composite material |
| CN108232144A (en) * | 2017-12-25 | 2018-06-29 | 北方奥钛纳米技术有限公司 | A kind of modified silicon-carbon composite electrode material and preparation method thereof |
| CN108232144B (en) * | 2017-12-25 | 2020-09-25 | 北方奥钛纳米技术有限公司 | Modified silicon-carbon composite electrode material and preparation method thereof |
| CN110284146A (en) * | 2019-06-21 | 2019-09-27 | 青岛科技大学 | Load selenium in situ adulterates molybdenum disulfide/transition metal boride nano material preparation and application |
| CN110635129A (en) * | 2019-08-21 | 2019-12-31 | 合肥国轩高科动力能源有限公司 | Preparation method and application of novel SiO/C/Cu composite material |
| CN110635129B (en) * | 2019-08-21 | 2022-08-09 | 合肥国轩高科动力能源有限公司 | Preparation method and application of silicon-based composite material |
| CN111029554A (en) * | 2019-12-25 | 2020-04-17 | 湖北万润新能源科技发展有限公司 | Preparation method and application of in-situ carbon-coated silicon dioxide-carbon composite material |
| CN111446440A (en) * | 2020-05-22 | 2020-07-24 | 扬州大学 | Nitrogen-doped carbon-coated hollow mesoporous silica/cobalt nano composite material and lithium ion battery cathode material thereof |
| CN111446440B (en) * | 2020-05-22 | 2022-07-05 | 扬州大学 | Nitrogen-doped carbon-coated hollow mesoporous silica/cobalt nano composite material and lithium ion battery cathode material thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101913556B (en) | 2013-04-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101913556B (en) | Preparation method of cobalt-silicon oxide/carbon nanocomposite | |
| CN105742602B (en) | A kind of sodium-ion battery cathode Sn/MoS2/ C composite and preparation method thereof | |
| CN103236534B (en) | A kind of preparation method of lithium ion battery silicon oxide/carbon composite negative pole material | |
| CN103035917B (en) | Preparation method of silicon dioxide/ carbon composite negative electrode material for lithium ion battery | |
| CN102306759B (en) | Silicon monoxide composite cathode material for lithium ion battery, and preparation method thereof | |
| CN102891306B (en) | Lithium ion battery Si/Li4Ti5O12/CNT composite negative pole material and preparation method thereof | |
| CN102208614B (en) | Method for preparing lithium ion battery cathode material coated iron sesquioxide | |
| CN101787169B (en) | Polyvinylidene fluoride (PVDF)/Li1.3 Al0.3 Ti1.7 (PO4) 3 solid-state diphase electrolyte thin-film material and preparation method | |
| CN105355875A (en) | Tungsten oxide nanowire wound composite material, preparation method and application | |
| CN105591080A (en) | Preparation method of lithium ion battery cathode material SiOX-TiO2/C | |
| CN111129475A (en) | Preparation method of molybdenum dioxide/carbon/silicon dioxide nanospheres and negative electrode material of lithium ion battery | |
| CN103762354A (en) | LiNi0.5Mn1.5O4 material, preparation method thereof as well as lithium ion battery | |
| CN104993116B (en) | A kind of self assembly anode material for lithium-ion batteries V2O5Preparation method | |
| CN105514375B (en) | A kind of carbon coating Na0.55Mn2O4·1.5H2O nanocomposite and preparation method thereof | |
| CN104659346A (en) | Germanium/carbon composite negative electrode material and preparation method thereof | |
| CN101409344A (en) | Lithium ion battery cathode material and preparation method thereof | |
| CN108172744B (en) | Sb for lithium-sulfur battery diaphragm2Se3Method for preparing composite material | |
| CN104009218A (en) | Preparation method of tin/lithium titanate composite electrode material as lithium ion battery negative electrode material | |
| CN102195033B (en) | Method for preparing lithium battery anode material Li-Mn compound oxide at low temperature and lithium ion secondary battery | |
| CN105047870A (en) | Nitrogen-doped carbon-coated silicon composite material and preparation method thereof | |
| CN109755511A (en) | A kind of anode material for lithium-ion batteries and preparation method thereof | |
| CN107516734A (en) | A kind of preparation method of carbon-coating nickel tin alloy nanosphere and its application in lithium battery | |
| CN103208624A (en) | Preparation method of Fe3O4@C nano composite lithium battery negative electrode materials of monodisperse core-shell structure | |
| CN111864255A (en) | Power battery and battery cloud platform management method | |
| CN104124445B (en) | A kind of NiV3O8Lithium ion battery negative material and preparation method 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 | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211111 Address after: 100070 No. 368-2, floor 3, building 1, No. 9, Xinghuo Road, Fengtai District, Beijing (Park) Patentee after: Jiadao Technology (Beijing) Co., Ltd Address before: Science and Technology Office of North University of science and technology, No. 30 Xueyuan Road, Haidian District, Beijing 100083 Patentee before: Beijing University of science and technology |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211216 Address after: No.321 Jiachuang Road, Xiuzhou District, Jiaxing City, Zhejiang Province Patentee after: Jiadao material technology Jiaxing Co.,Ltd. Address before: 100070 Beijing Fengtai District Spark Road 9, 1 3 story 368-2 (Park) Patentee before: Jia Dao Technology (Beijing) Co.,Ltd. |
|
| TR01 | Transfer of patent right |