CN103035877B - Graphene/elemental tin combined electrode plate and preparation method of same - Google Patents
Graphene/elemental tin combined electrode plate and preparation method of same Download PDFInfo
- Publication number
- CN103035877B CN103035877B CN201110302809.6A CN201110302809A CN103035877B CN 103035877 B CN103035877 B CN 103035877B CN 201110302809 A CN201110302809 A CN 201110302809A CN 103035877 B CN103035877 B CN 103035877B
- Authority
- CN
- China
- Prior art keywords
- graphene
- simple substance
- pole piece
- electric pole
- compound electric
- 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
-
- 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 graphene/elemental tin combined electrode plate. The combined electrode plate comprises a current collector, graphene deposited on the surface of the current collector, and elemental tin dispersed on the surface of the graphene. According to the graphene/elemental tin combined electrode plate, the graphene and the elemental tin are directly deposited on the current collector. Compared with a traditional electrode plate added with an adhesive, the graphene/elemental tin combined electrode plate is lower in equivalent series resistance; and the power density of a battery can be effectively increased by use of the graphene/elemental tin combined electrode plate. The invention also provides a preparation method of the graphene/elemental tin combined electrode plate.
Description
[technical field]
The present invention relates to field of new, particularly relate to a kind of Graphene/tin simple substance compound electric pole piece and preparation method thereof.
[background technology]
Since strong K sea nurse (Andre K.Geim) of the peace moral of Univ Manchester UK etc. prepared grapheme material in 2004, pay attention to widely because the structure of its uniqueness and photoelectric property receive people.Mono-layer graphite due to its large specific area, excellent conduction, heat conductivility and low thermal coefficient of expansion and be considered to desirable material.Graphene not only has higher embedding lithium capacity (theoretical capacity: ~ 700mAh/g, actual capacity: 400 ~ 500mAh/g), and charge-discharge performance is very good.Negative electrode material can be used as in lithium-ion capacitor and lithium ion battery.
As the negative material of lithium ion battery, excellent embedding lithium performance must be had, in intercalation materials of li ions known at present, pure silicon is because having the highest theoretical lithium storage content (4200mAh/g), relatively low intercalation potential, and charge and discharge process is not easily reunited, compared with other metal_based materials, there is higher physical stability and chemical stability, become the study hotspot in lithium ion battery negative material field at present, but there is the Volumetric expansion after de-lithium equally in it, cause it unstable.
Therefore, the advantage of comprehensive various material, autotelic by various Material cladding formation composite negative pole material, avoid the deficiency existed separately, may meet the demands.Therefore together with the solubility pink salt with high embedding lithium capacity being compound to the good Graphene of charge-discharge performance, graphite is rare as buffer substance, suppress the volumetric expansion of silicon, get the feature that the oxide memory capacity of Graphene charge-discharge performance good life-span long advantage and silicon is high, expand the application of its composite material.
The technique that tradition prepares electrode slice is comparatively complicated, and adds certain binding agent, increases the equivalent series resistance of electrode, affects the power density of battery.
[summary of the invention]
Based on this, be necessary Graphene/tin simple substance compound electric pole piece providing a kind of equivalent series resistance lower and preparation method thereof.
A kind of Graphene/tin simple substance compound electric pole piece, comprising: collector, be deposited on the Graphene of described collection liquid surface and be deposited on the tin simple substance of described graphenic surface;
The mass ratio of described Graphene and described tin simple substance is 2: 1 ~ 4: 1.
Preferably, described collector is nickel foil, aluminium foil, corrosive aluminum foil or nickel foam.
A preparation method for Graphene/tin simple substance compound electric pole piece, comprises the steps:
Step one, provide or prepare graphite oxide;
Step 2, described graphite oxide is joined ultrasonic stripping in the first alcoholic solvent, obtain the alcoholic solution of graphene oxide; Reducing the mass ratio of the Graphene that obtains and tin element according to described graphene oxide is 2: 1 ~ 4: 1, solubility pink salt is joined the alcoholic solution obtaining homodisperse solubility pink salt in the second alcoholic solvent after dispersion; The alcoholic solution of solubility pink salt is joined in the alcoholic solution of described graphene oxide, after dispersion, obtain the mixed solution of homodisperse graphene oxide and solubility pink salt;
Step 3, in the mixed solution of described graphene oxide and solubility pink salt, add electrolyte, uniform electrolyte is obtained after mixing, again using collector as electrode, two described electrode runs parallel symmetries are put into described electrolyte, the direct current of 40V ~ 80V is added at the two ends of two described electrodes, the spacing of two described electrodes is 0.5cm ~ 1cm, takes out described electrode and dry final vacuum drying after electrophoresis, obtains graphene oxide/tin simple substance compound electric pole piece;
Step 4, under protective gas atmosphere, by described graphene oxide/tin simple substance compound electric pole piece high temperature reduction at 500 DEG C ~ 800 DEG C, cooling after take out, obtain described Graphene/tin simple substance compound electric pole piece.
Preferably, in step 2, described first alcoholic solvent is ethanol, propyl alcohol or isopropyl alcohol;
Described second alcoholic solvent is ethanol, propyl alcohol or isopropyl alcohol.
Preferably, in step 2, described solubility pink salt is stannic chloride, STANNOUS SULPHATE CRYSTALLINE or nitric acid tin.
Preferably, in step 3, described collector is nickel foil, aluminium foil, corrosive aluminum foil or nickel foam.
Preferably, in step 3, described electrolyte is magnesium nitrate, magnesium sulfate, ferric nitrate or zinc nitrate.
Preferably, in step 3, electrolytical mass concentration described in described electrolyte is 0.2mg/mL ~ 0.5mg/mL.
Preferably, in step 3, the time of described electrophoresis is 5min ~ 20min.
Preferably, in step 4, in described protective gas atmosphere, protective gas is at least one in nitrogen and inert gas;
The time of described high temperature reduction is 2h ~ 4h.
In this Graphene/tin simple substance compound electric pole piece, Graphene Direct precipitation on a current collector, tin simple substance is deposited on graphenic surface, relative to traditional electrode slice adding bonding agent, the equivalent series resistance of this Graphene/tin simple substance compound electric pole piece is lower, adopts this Graphene/tin simple substance compound electric pole piece effectively can improve the power density of battery.
[accompanying drawing explanation]
Fig. 1 is the SEM Electronic Speculum figure of Graphene/tin simple substance compound electric pole piece prepared by embodiment 1.
[embodiment]
Below in conjunction with drawings and Examples, explanation is further explained to Graphene/tin simple substance compound electric pole piece and preparation method thereof.
A kind of Graphene/tin simple substance compound electric pole piece, comprising: collector, be deposited on the Graphene of described collection liquid surface and be deposited on the tin simple substance of described graphenic surface.
The mass ratio of Graphene and tin simple substance is 2: 1 ~ 4: 1.
Collector is nickel foil, aluminium foil, corrosive aluminum foil or nickel foam.
In this Graphene/tin simple substance compound electric pole piece, Graphene Direct precipitation on a current collector, tin simple substance is deposited on graphenic surface, relative to traditional electrode slice adding bonding agent, the equivalent series resistance of this Graphene/tin simple substance compound electric pole piece is lower, adopts this Graphene/tin simple substance compound electric pole piece effectively can improve the power density of battery.This Graphene/tin simple substance compound electric pole piece passes through Graphene and tin simple substance compound, both stability when tin does negative material can have been improved, capacity when simple Graphene makes negative material can be improved again, be suitable as the negative material of lithium ion battery and can lithium-ion capacitor be applied to.
The preparation method of the above-mentioned Graphene/tin simple substance compound electric pole piece of one execution mode, comprises the steps:
S10, provide or prepare graphite oxide.
Graphite oxide is by obtained after natural flake graphite oxidation, and concrete steps are:
Be that 100 order ~ 500 object natural flake graphites join 0 DEG C, in the concentrated sulfuric acid of 11.5mL by 0.5g order number, add 1.5g potassium permanganate again, the temperature of mixture remains on less than 10 DEG C, stirs 2h, then, after room-temperature water bath stirs 24h, under condition of ice bath, 46mL deionized water is slowly added.After 15min, add 140mL deionized water (wherein containing 2.5mL concentration is the hydrogen peroxide of 30%) again, mixture color becomes glassy yellow afterwards, suction filtration, again with the hydrochloric acid that 250mL concentration is 10% carry out washing, suction filtration, namely last 60 DEG C of vacuumize 48h obtain graphite oxide.
S20, the graphite oxide obtained by step S10 join ultrasonic stripping in the first alcoholic solvent, obtain the alcoholic solution of graphene oxide; Reducing the mass ratio of the Graphene that obtains and tin element according to described graphene oxide is 2: 1 ~ 4: 1, solubility pink salt is joined the alcoholic solution obtaining homodisperse solubility pink salt in the second alcoholic solvent after dispersion; The alcoholic solution of solubility pink salt is joined in the alcoholic solution of graphene oxide, after dispersed, obtains the mixed solution of graphene oxide and solubility pink salt.
Solubility pink salt can be stannic chloride, STANNOUS SULPHATE CRYSTALLINE or nitric acid tin.
First alcoholic solvent can be ethanol, propyl alcohol or isopropyl alcohol.
The time of ultrasonic stripping can be 0.5h ~ 1h.
Dispersion can adopt ultrasonic disperse.The time of ultrasonic disperse can be 0.5h ~ 1h.
Second alcoholic solvent can be ethanol, propyl alcohol or isopropyl alcohol.
First alcoholic solvent can be identical with the second alcoholic solvent, also can not be identical.
Electrolyte is added in the mixed solution of S30, the graphene oxide obtained to step S20 and solubility pink salt, uniform electrolyte is obtained after mixing, again using collector as electrode, two electrode runs parallel symmetries are put into electrolyte, the direct current of 40V ~ 80V is added at the two ends of two electrodes, the spacing of two electrodes is 0.5cm ~ 1cm, takes out electrode and dries final vacuum baking, obtain graphene oxide/tin simple substance compound electric pole piece after electrophoresis.
Electrolyte can be magnesium nitrate, magnesium sulfate, ferric nitrate or zinc nitrate.In electrolyte, electrolytical mass concentration is 0.2mg/mL ~ 0.5mg/mL.
Mg (NO can be adopted
3)
26H
2o, Mg (SO
4)
27H
2o, Fe (NO
3)
39H
2o or Zn (NO
3)
26H
2o prepares above-mentioned electrolyte solution.
Electrolyte joins the operation mixed after in the mixed solution of graphene oxide and solubility pink salt can adopt ultrasonic 15min ~ 60min.
Collector can be nickel foil, aluminium foil, corrosive aluminum foil or nickel foam.
In present embodiment, diameter is adopted to be that the nickel foil of 5cm ~ 10cm is as collector.
The time of electrophoresis can be 5min ~ 20min.
The time of vacuum bakeout can be 1h ~ 3h.
S40, under protective gas atmosphere, the graphene oxide that step S30 is obtained/tin simple substance compound electric pole piece high temperature reduction at 500 DEG C ~ 800 DEG C, cooling after take out, obtain Graphene/tin simple substance compound electric pole piece.
In protective gas atmosphere, protective gas can be at least one in nitrogen and inert gas.
The time of high temperature reduction can be 2h ~ 4h.
In present embodiment, graphene oxide/tin simple substance compound electric pole piece is positioned in the middle of heating furnace pipe, and passes to highly purified protective gas; reaction temperature is warming up to the rate of heat addition of 10 DEG C/min; and keep 2h ~ 4h, complete high temperature reduction, obtain Graphene/tin simple substance compound electric pole piece.
The advantage of the preparation method of this Graphene/tin simple substance compound electric pole piece comprises: (1) is by the compound by Graphene and tin metal, both can improve stability when tin does negative material, capacity when simple Graphene makes negative material can have been improved again.(2) by the method for electro-deposition, electrode material is deposited directly on electrode slice, can save complicated coating process, and technique is simple and the time is short.(3) electrode material is deposited directly on electrode slice, can reduce the equivalent series resistance (ESR) of electrode, thus the power density of more effective raising battery.
It is below specific embodiment part.
Embodiment 1
(1) 500 object natural flake graphite powder are bought, 0.5g 500 order graphite powder is added 0 DEG C, in the concentrated sulfuric acid of 11.5mL, add 1.5g potassium permanganate again, the temperature of mixture remains on less than 10 DEG C, stir 2h, then, after room-temperature water bath stirs 24h, under condition of ice bath, 46mL deionized water is slowly added.After 15min, add 140mL deionized water (wherein containing 2.5mL concentration is the hydrogen peroxide of 30%) again, mixture color becomes glassy yellow afterwards, suction filtration, again with the hydrochloric acid that 250mL concentration is 10% carry out washing, suction filtration, namely last 60 DEG C of vacuumize 48h obtain graphite oxide.
(2) graphene oxide and stannic chloride mixed solution: graphite oxide is added and ultrasonicly in ethanol peels off 0.5h, obtain homodisperse graphene oxide solution.Reducing the mass ratio of the Graphene that obtains and tin element according to graphene oxide is 2: 1, stannic chloride is added ultrasonic 0.5h in isopropyl alcohol, obtains homodisperse tin chloride solution.Finally tin chloride solution is slowly joined in graphene oxide solution, after ultrasonic disperse 0.5h, obtain graphene oxide and stannic chloride mixed solution.
(3) graphene oxide/tin simple substance compound electric pole piece: according to Mg (NO
3)
2final concentration is 0.2mg/mL, in the mixed solution of (2) gained, add Mg (NO
3)
26H
2o, obtains uniform solution as electrolyte after ultrasonic 15min.Using the nickel foil of 5cm diameter as electrode, be placed in electrolyte by its Parallel Symmetric, add the direct current of 40V at the two ends of electrode, two die openings are 0.5cm, take out and dry, then vacuum bakeout 1h obtains graphene oxide/tin simple substance compound electric pole piece after electrophoresis 5min.
(4) Graphene/tin simple substance compound electric pole piece: the graphene oxide of (3) gained/tin simple substance compound electric pole piece is put into the centre of heating furnace pipe and passes to highly purified argon gas, then stove is heated, be warming up to reaction temperature 500 DEG C with the rate of heat addition of 10 DEG C/min, keep 2h.After completion of the reaction, cool to room temperature in an inert atmosphere, obtains Graphene/tin simple substance compound electric pole piece.
Fig. 1 be Graphene/tin simple substance compound electric pole piece prepared by the present embodiment SEM figure, as can be seen from Figure, graphene uniform be deposited on nickel foil, tin simple substance is deposited on Graphene.
Embodiment 2
(1) 300 object natural flake graphite powder are bought, 0.5g 300 order graphite powder is added 0 DEG C, in the concentrated sulfuric acid of 11.5mL, add 1.5g potassium permanganate again, the temperature of mixture remains on less than 10 DEG C, stir 2h, then, after room-temperature water bath stirs 24h, under condition of ice bath, 46mL deionized water is slowly added.After 15min, add 140mL deionized water (wherein containing 2.5mL concentration is the hydrogen peroxide of 30%) again, mixture color becomes glassy yellow afterwards, suction filtration, again with the hydrochloric acid that 250mL concentration is 10% carry out washing, suction filtration, namely last 60 DEG C of vacuumize 48h obtain graphite oxide.
(2) graphene oxide and stannic chloride mixed solution: graphite oxide is added and ultrasonicly in isopropyl alcohol peels off 0.8h, obtain homodisperse graphene oxide solution.Reducing the mass ratio of the Graphene that obtains and tin element according to graphene oxide is 3: 1, STANNOUS SULPHATE CRYSTALLINE is added ultrasonic 0.8h in ethanol, obtains homodisperse STANNOUS SULPHATE CRYSTALLINE solution.Finally STANNOUS SULPHATE CRYSTALLINE solution is slowly joined in graphene oxide solution, after ultrasonic disperse 1h, obtain graphene oxide and STANNOUS SULPHATE CRYSTALLINE mixed solution.
(3) graphene oxide/tin simple substance compound electric pole piece: according to Mg (SO
4)
2final concentration is 0.35mg/mL, in the mixed solution of (2) gained, add Mg (SO
4)
27H
2o, obtains uniform solution as electrolyte after ultrasonic 35min.Using the corrosive aluminum foil of 8cm diameter as electrode, be placed in electrolyte by its Parallel Symmetric, add the direct current of 60V at the two ends of electrode, two die openings are 1cm, take out after electrophoresis 12min and dry, then vacuum bakeout 2h obtains graphene oxide/tin simple substance compound electric pole piece.
(4) Graphene/tin simple substance compound electric pole piece: the graphene oxide of (3) gained/tin simple substance compound electric pole piece is put into the centre of heating furnace pipe and passes to highly purified nitrogen, then stove is heated, be warming up to reaction temperature 650 DEG C with the rate of heat addition of 10 DEG C/min, keep 4h.After completion of the reaction, cool to room temperature in an inert atmosphere, obtains Graphene/tin simple substance compound electric pole piece.
Embodiment 3
(1) 100 object natural flake graphite powder are bought, 0.5g 100 order graphite powder is added 0 DEG C, in the concentrated sulfuric acid of 11.5mL, add 1.5g potassium permanganate again, the temperature of mixture remains on less than 10 DEG C, stir 2h, then, after room-temperature water bath stirs 24h, under condition of ice bath, 46mL deionized water is slowly added.After 15min, add 140mL deionized water (wherein containing 2.5mL concentration is the hydrogen peroxide of 30%) again, mixture color becomes glassy yellow afterwards, suction filtration, again with the hydrochloric acid that 250mL concentration is 10% carry out washing, suction filtration, namely last 60 DEG C of vacuumize 48h obtain graphite oxide.
(2) graphene oxide and stannic chloride mixed solution: graphite oxide is added and ultrasonicly in propyl alcohol peels off 1h, obtain homodisperse graphene oxide solution.Reducing the mass ratio of the Graphene that obtains and tin element according to graphene oxide is 4: 1, nitric acid tin is added ultrasonic 1h in propyl alcohol, obtains homodisperse nitric acid solution of tin.Finally nitric acid solution of tin is slowly joined in graphene oxide solution, after ultrasonic disperse 0.5h, obtain graphene oxide and nitric acid tin mixed solution.
(3) graphene oxide/tin simple substance compound electric pole piece: according to Fe (NO
3)
3final concentration is 0.5mg/mL, in the mixed solution of (2) gained, add Fe (NO
3)
39H
2o, obtains uniform solution as electrolyte after ultrasonic 60min.Using the aluminium foil of 10cm diameter as electrode, be placed in electrolyte by its Parallel Symmetric, add the direct current of 80V at the two ends of electrode, two die openings are 0.5cm, take out after electrophoresis 20min and dry, then vacuum bakeout 3h obtains graphene oxide/tin simple substance compound electric pole piece.
(4) Graphene/tin simple substance compound electric pole piece: the graphene oxide of (3) gained/tin simple substance compound electric pole piece is put into the centre of heating furnace pipe and to pass to highly purified volume ratio be the nitrogen of 1: 1 and the mist of argon gas, then stove is heated, be warming up to reaction temperature 800 DEG C with the rate of heat addition of 10 DEG C/min, keep 3h.After completion of the reaction, cool to room temperature in an inert atmosphere, obtains Graphene/tin simple substance compound electric pole piece.
The above embodiment only have expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (6)
1. a preparation method for Graphene/tin simple substance compound electric pole piece, is characterized in that, comprise the steps:
Step one, provide or prepare graphite oxide;
Step 2, described graphite oxide is joined ultrasonic stripping in the first alcoholic solvent, obtain the alcoholic solution of graphene oxide; Reducing the mass ratio of the Graphene that obtains and tin element according to described graphene oxide is 2:1 ~ 4:1, solubility pink salt is joined the alcoholic solution obtaining homodisperse solubility pink salt in the second alcoholic solvent after dispersion; The alcoholic solution of solubility pink salt is joined in the alcoholic solution of described graphene oxide, after dispersion, obtain the mixed solution of homodisperse graphene oxide and solubility pink salt;
Step 3, in the mixed solution of described graphene oxide and solubility pink salt, add electrolyte, uniform electrolyte is obtained after mixing, again using collector as electrode, two described electrode runs parallel symmetries are put into described electrolyte, the direct current of 40V ~ 80V is added at the two ends of two described electrodes, the spacing of two described electrodes is 0.5cm ~ 1cm, takes out described electrode and dry final vacuum drying after electrophoresis, obtains graphene oxide/tin simple substance compound electric pole piece;
Step 4, under protective gas atmosphere, by described graphene oxide/tin simple substance compound electric pole piece high temperature reduction at 500 DEG C ~ 800 DEG C, cooling after take out, obtain described Graphene/tin simple substance compound electric pole piece;
In step 3, electrolytical mass concentration described in described electrolyte is 0.2mg/mL ~ 0.5mg/mL;
In step 4, in described protective gas atmosphere, protective gas is at least one in nitrogen and inert gas; The time of described high temperature reduction is 2h ~ 4h.
2. the preparation method of Graphene/tin simple substance compound electric pole piece as claimed in claim 1, it is characterized in that, in step 2, described first alcoholic solvent is ethanol, propyl alcohol or isopropyl alcohol;
Described second alcoholic solvent is ethanol, propyl alcohol or isopropyl alcohol.
3. the preparation method of Graphene/tin simple substance compound electric pole piece as claimed in claim 1, it is characterized in that, in step 2, described solubility pink salt is stannic chloride, STANNOUS SULPHATE CRYSTALLINE or nitric acid tin.
4. the preparation method of Graphene/tin simple substance compound electric pole piece as claimed in claim 1, it is characterized in that, in step 3, described collector is nickel foil, aluminium foil, corrosive aluminum foil or nickel foam.
5. the preparation method of Graphene/tin simple substance compound electric pole piece as claimed in claim 1, it is characterized in that, in step 3, described electrolyte is magnesium nitrate, magnesium sulfate, ferric nitrate or zinc nitrate.
6. the preparation method of Graphene/tin simple substance compound electric pole piece as claimed in claim 1, it is characterized in that, in step 3, the time of described electrophoresis is 5min ~ 20min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110302809.6A CN103035877B (en) | 2011-10-09 | 2011-10-09 | Graphene/elemental tin combined electrode plate and preparation method of same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110302809.6A CN103035877B (en) | 2011-10-09 | 2011-10-09 | Graphene/elemental tin combined electrode plate and preparation method of same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103035877A CN103035877A (en) | 2013-04-10 |
| CN103035877B true CN103035877B (en) | 2015-05-06 |
Family
ID=48022542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110302809.6A Active CN103035877B (en) | 2011-10-09 | 2011-10-09 | Graphene/elemental tin combined electrode plate and preparation method of same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103035877B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345979B (en) * | 2013-06-27 | 2016-03-02 | 中国科学院微电子研究所 | A kind of preparation method of graphene conductive film |
| CN103436939B (en) * | 2013-08-19 | 2016-08-17 | 南京航空航天大学 | Foam metal-graphene composite material and preparation method thereof |
| CN103545121B (en) * | 2013-10-23 | 2016-12-07 | 南京大学 | A kind of electrode material for super capacitor preparation method based on three-dimensional grapheme |
| CN103715430B (en) * | 2013-12-23 | 2015-09-09 | 天津大学 | Three-dimensional grapheme network structure load carbon covered stannum rice material and preparation and application |
| CN104401977A (en) * | 2014-10-28 | 2015-03-11 | 同济大学 | Preparation method of graphene aerogel and graphene-carbon nanotube aerogel |
| CN104505497B (en) * | 2014-12-12 | 2017-01-04 | 盐城市新能源化学储能与动力电源研究中心 | Graphene nickel electrode prepared by a kind of Graphene nickel composite material and this material of use |
| CN104600259B (en) * | 2014-12-31 | 2017-01-18 | 广西师范大学 | Lithium battery negative electrode material with lamellar structure and preparation method of lithium battery negative electrode material |
| CN104716313B (en) * | 2015-03-16 | 2016-11-30 | 哈尔滨工业大学 | The preparation method of tinbase/graphene lithium ion battery composite negative pole material |
| CN106873188A (en) * | 2017-03-31 | 2017-06-20 | 苏州三个臭皮匠生物科技有限公司 | A kind of efficient absorption electrode for electrophoresis cleaning contact lenses |
| CN107359337A (en) * | 2017-07-12 | 2017-11-17 | 湖南艾威尔新能源科技有限公司 | The preparation method of graphene combination electrode piece |
| CN109137050B (en) * | 2018-10-16 | 2020-07-17 | 新昌县鸿吉电子科技有限公司 | Graphene-doped modified interconnection belt or bus belt and preparation method thereof |
| CN112151778B (en) * | 2020-09-14 | 2021-07-16 | 吉林中溢炭素科技有限公司 | Preparation and application of lithium ion battery negative electrode material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101414674A (en) * | 2008-08-05 | 2009-04-22 | 华南师范大学 | Cathode material for lithium ion battery tin/carbon nanometer multilayer film, and preparation method and application thereof |
| CN102084522A (en) * | 2008-05-20 | 2011-06-01 | 通用汽车环球科技运作公司 | Intercalation electrode based on ordered graphene planes |
-
2011
- 2011-10-09 CN CN201110302809.6A patent/CN103035877B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102084522A (en) * | 2008-05-20 | 2011-06-01 | 通用汽车环球科技运作公司 | Intercalation electrode based on ordered graphene planes |
| CN101414674A (en) * | 2008-08-05 | 2009-04-22 | 华南师范大学 | Cathode material for lithium ion battery tin/carbon nanometer multilayer film, and preparation method and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| Sn/graphene nanocomposite with 3D architecture for enhanced reversible lithium storage in lithium ion batteries;Guoxiu Wang et al;《Journal of Materials Chemistry》;20091005(第19期);8378–8384 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103035877A (en) | 2013-04-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103035877B (en) | Graphene/elemental tin combined electrode plate and preparation method of same | |
| CN103035889B (en) | Graphene/nanometer silicon compound electric pole piece and preparation method thereof | |
| CN105489855B (en) | High capacity type lithium ion battery nucleocapsid silicon-carbon composite cathode material and preparation method thereof | |
| Pan et al. | Flower-like ZnO–NiO–C films with high reversible capacity and rate capability for lithium-ion batteries | |
| CN105098185B (en) | Composite negative pole material and preparation method thereof, cathode pole piece of lithium ion secondary battery and lithium rechargeable battery | |
| CN103035878B (en) | Graphene/tin-oxide compound electric pole piece and preparation method thereof | |
| CN103236530B (en) | Si-C composite material and preparation method thereof, lithium ion battery containing this material | |
| CN104617271B (en) | Stannic selenide/graphene oxide negative pole composite material for sodium ion battery and preparation method thereof | |
| CN104009236B (en) | A kind of metatitanic acid lithium mesoporous single crystals nano particle/redox graphene matrix material and its preparation method and application | |
| CN102956864B (en) | A kind of preparation method of nitrating Graphene electrodes | |
| CN104617272B (en) | A kind of preparation method of porous Si-C composite material | |
| WO2017024720A1 (en) | Preparation method for high capacity lithium-ion battery negative electrode material | |
| CN103035409A (en) | Graphene composite electrode and preparation method and application | |
| CN104852028A (en) | Lithium titanate/graphene composite cathode material for lithium ion battery | |
| CN111106310A (en) | Preparation method of composite lithium metal negative electrode and battery containing composite lithium metal negative electrode | |
| CN109755515B (en) | Silicon/carbon cathode composite material of lithium ion battery and preparation method thereof | |
| CN102956872B (en) | Preparation method and application of compound electrode slice | |
| CN106784700A (en) | A kind of multilayer silicon/Graphene composite lithium ion battery negative material and preparation method thereof | |
| CN108832122A (en) | Improve the method for electrochemical performances of lithium iron phosphate using copper/graphene | |
| CN106115785B (en) | A kind of pure phase MoO2Anode material of lithium-ion battery and preparation method thereof | |
| CN103383898A (en) | Preparing method of graphene paper current collector | |
| CN104752073A (en) | Preparation method of ferromanganese oxide/carbon composite materials | |
| Zhou et al. | A 3D stable and highly conductive scaffold with carbon nanotubes/carbon fiber as electrode for lithium sulfur batteries | |
| CN108987704A (en) | A kind of preparation method and applications of the silicon-carbon composite cathode material of lithium ion battery with porous structure | |
| CN108023071A (en) | Preparation method of foamy graphite alkene nickel-loaded cobalt oxide negative material and products thereof and application |
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 |