CN107579274A - A kind of fast charge graphene lithium battery mobile power - Google Patents
A kind of fast charge graphene lithium battery mobile power Download PDFInfo
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- CN107579274A CN107579274A CN201710629361.6A CN201710629361A CN107579274A CN 107579274 A CN107579274 A CN 107579274A CN 201710629361 A CN201710629361 A CN 201710629361A CN 107579274 A CN107579274 A CN 107579274A
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- graphene
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention discloses a kind of fast charge graphene lithium battery mobile power, including movable power shell, graphene lithium ion battery is set in the movable power shell, and graphene lithium ion battery includes the positive plate containing plus plate current-collecting body and coated in the positive-active layer on plus plate current-collecting body, negative plate, barrier film and conduction liquid containing negative current collector and coated in the negative electrode active layer on negative current collector；Wherein, the negative electrode active layer is the composite three-dimensional porous structural material of carbon nano tube/graphene；The positive-active layer is nanometer LiFePO4/G composites.The technical program can shorten the lithium ion battery charging interval.
Description
Technical field
The present invention relates to portable power source technical field, especially a kind of fast charge graphene battery portable power source.
Background technology
The energy and environment are the two big Tough questions that human society keeps sustainable development to face, and exploitation green,
Renewable cleaning new energy is most one of technical field of decisive influence in World Economics from now on.In new energy development,
It is significant using natural energy such as wind energy, tide energy, solar energy etc., however these energy effect processes be it is discontinuous,
Will be on a large scale using these natural energies, it is necessary to there is matched energy storage device.Battery especially secondary cell, it is a kind of tool
There are the energy stores and conversion equipment of high transformation efficiency, and have the advantages that easy to use, safe and reliable.Recently, secondary cell
Development and application promote the development and utilization of the regenerative resources such as wind energy, solar energy and tide energy.
Nowadays smart mobile phone has become main flow, super large touch screen, abundant multimedia, software application and GPS navigation etc.
Some height turn into indispensability with hardware and software feature, and while more multioperation enjoyment is increased for mobile phone, they also consume
Most of electricity.The upgrading of battery of mobile phone relatively lags behind relative to the progress of cell-phone function, turns into and restricts smart mobile phone function
One obstacle.Theoretically come, a smart mobile phone function is more, and its stand-by time is shorter, especially for intelligence one
For body machine, battery of mobile phone even more needs endurance really up to the mark but present battery technology is not enough to support the long-time of mobile phone
Use.So the use of portable power source increasingly universalness and day-to-day, the wide market of portable power source.
But all portable power source equipment in the market, easily ten charging intervals more than hour, it strongly limit it
Popularization and application.
The content of the invention
For overcome the deficiencies in the prior art, the present invention proposes a kind of fast charge graphene lithium battery mobile power, its purpose
It is the charging interval for shortening existing lithium battery, meets people's requirement.
In order to solve above-mentioned technical problem, basic technical scheme proposed by the present invention is：A kind of fast charge graphene lithium electricity
Pond portable power source, including movable power shell, the movable power shell is interior to set graphene lithium ion battery,
Graphene lithium ion battery is included containing plus plate current-collecting body and coated in the positive-active layer on plus plate current-collecting body
Positive plate, negative plate, barrier film and conduction liquid containing negative current collector and coated in the negative electrode active layer on negative current collector；
Wherein, the negative electrode active layer is the composite three-dimensional porous structural material of carbon nano tube/graphene；
The positive-active layer is nanometer LiFePO4/G composites；
The conduction liquid is to include accounting for weight 2-3% graphene conductive additives, and the graphene conductive additive includes graphite
Alkene 15-25 parts, polyacrylonitrile fibre 3-5 parts, dispersant 5-8 parts, ethanol 10-15 parts, 0.5 part of titanium carbide.
Further, the composite three-dimensional porous structural material of the carbon nano tube/graphene uses 20 layers of grapheme material
Catalyst and inert gas reaction are added in the reactor chamber；Then it is made by vapour deposition process, temperature is heated in preparation process
Degree is between 500-800 DEG C.
The beneficial effects of the invention are as follows：
Technical scheme, active layer is coated on the positive and negative collector of graphene lithium ion battery and in electricity
Addition graphene conductive additive can shorten the charging interval in solution liquid, meet people's requirement.
Brief description of the drawings
Fig. 1 is a kind of fast charge graphene lithium battery mobile power of invention.
Embodiment
Below with reference to accompanying drawing 1, the present invention is described further, but the protection model of the present invention should not be limited with this
Enclose.
A kind of fast charge graphene lithium battery mobile power, including movable power shell 100, in the movable power shell 100
Graphene lithium ion battery 200 is set, and graphene lithium ion battery 200 is included containing plus plate current-collecting body 2011 and coated in positive pole
The positive plate 201 of positive-active layer 2012 on collector 2011, containing negative current collector 2021 and coated in negative current collector
Negative plate 202, barrier film 203 and the conduction liquid 204 of negative electrode active layer 2022 on 2021.
Wherein, the negative electrode active layer 2022 is the composite three-dimensional porous structural material of carbon nano tube/graphene；
The positive-active layer 2012 is nanometer LiFePO4/G composites；
The conduction liquid 204 is to include accounting for weight 2-3% graphene conductive additives, and the graphene conductive additive includes stone
Black alkene 15-25 parts, polyacrylonitrile fibre 3-5 parts, dispersant 5-8 parts, ethanol 10-15 parts, 0.5 part of titanium carbide.In the present embodiment
Middle use 3% accounts for weight.
It is detailed, than conventional lithium ion battery, graphene lithium battery mobile power of the invention by adding graphene,
Charging rate can greatly be improved.
It should be noted that the composite three-dimensional porous structural material of carbon nano tube/graphene uses 20 layers of graphene
Material adds catalyst and inert gas reaction in the reactor chamber；Then it is made by vapour deposition process, is added in preparation process
Hot temperature is between 500-800 DEG C.It is as follows in detail：0.2g graphene is chosen, is dried in 100 DEG C of baking ovens；Choose 20mg's
Ferrocene, dried in 80 DEG C of baking ovens；Dried ferrocene and graphene are respectively placed in the front end and center of reaction chamber,
Vacuumizing makes absolute pressure in burner hearth be less than 1kPa, is vacuumized again after logical nitrogen to normal pressure, repeats this process three times.Open microwave
The nitrogen of flowing is first passed through in preceding reaction chamber, to remove the oxygen remained in reaction chamber；With microwave heating response chamber, work as temperature
When being quickly ramped up to 600 DEG C of reaction temperature, gas flow bottle valve is opened, is to be passed through methane gas and nitrogen at 1: 4 according to volume ratio,
Total flow is 100sccm.After question response 10min, close microwave and methane gas, whole reaction system cool down in a nitrogen atmosphere
To room temperature, carbon nano tube/graphene composite negative pole is obtained.
In embodiment, graphene used is the graphene that in the market is commonly used.Or obtain by the following method：First
Carry out graphite pre-oxidation treatment：High purity graphite is added to mixed solution (K2S2O8：2.5g, P2O5：2.5g, H2SO4：12ml)
In, 5h is stirred in 80 DEG C of oil baths, 1.0L deionized waters is added after thing cooling to be mixed, then filters, washs and remove product
Acid of middle residual etc., it is placed in 60 DEG C of baking ovens and dries.
Then the graphite of pre-oxidation is aoxidized.Concentrated sulfuric acid 240ml is added in the 1L beakers for being placed in ice bath, rather
Zhong Hou, the graphite powder pre-oxidized before is added in the concentrated sulfuric acid of cooling, then addition 30gKMnO slowly progressively4, this mistake
Journey will remain that temperature is less than 20 DEG C, and then mixture is drawn in 35 DEG C of oil baths and mixes 2h, adds 500ml deionized waters.
Because during this, the addition of water can cause to discharge substantial amounts of heat, therefore 2h is stirred in ice bath, be added followed by
1.4L deionized waters and 40ml concentration are 30%H2O2, the color of solution is changed into glassy yellow, and stands and layering occurs, will
Supernatant is outwelled, and is added the aqueous hydrochloric acid solution (2ml) that volume ratio 1: 10 is and is stirred, removing metal ion, same stratification,
Outwell supernatant.2L deionized water is eventually adding, mixture is transferred in bag filter and dialysed, it is residual in product to remove
The acid and impurity stayed.
Finally, gather material to graphite oxide using ultrasonic grinder to peel off, graphite exaltation liquid is obtained by demarcation
Concentration, then add appropriate hydrazine hydrate and flowed back at 90 DEG C 2h, filtering, washing and cold dry can obtain the dilute powder of graphite.
It should be noted that LiFePO4/G composites use the existing material of in the market, or make with the following method
：Dilute graphite oxide is raw material, prepares the LiFePO4/G composites using Situ Hydrothermal is compound, not only improves material
Electric conductivity, and realize particle nanosizing.That is, dose volume is than DMF: water=10: 1 mixing is molten
Liquid, mix stand-by after equal sentence.20mg graphite oxides are weighed, ultrasound 2 hours in 40ml mixed solutions, until being completely dispersed
It is even.Weigh 1mmol iron chloride 10ml to be dissolved in mixed solution, be slowly dropped among graphite oxide.It is heated to 85 DEG C and draws to mix 1 hour
Afterwards, it is cooled to room temperature.1.5mmol ascorbic acid is weighed, and 1.1mmol LiFePO4 are dissolved in 10ML mixed solutions respectively, side
Stirring side is slowly dropped into above-mentioned solution, after being sufficiently stirred 1 hour, is transferred into and is reacted standby, hydro-thermal reaction is carried out at 175 DEG C
20 hours, cooled and filtered cleaning black precipitate, obtain LiFePO4/G composites.
According to graphene lithium ion battery 200 made from above-mentioned technical scheme, the portable power source specification made is by 18650
Type lithium ion battery specifications design illustrates, but the present invention is not intended to be limited thereto, the cylinder of square Soft Roll or box hat or other models
Shape lithium ion battery is equally applicable to the present invention.The capacity of portable power source can design from 1000~1000000mAh, charging voltage
From 5V~220V, charging current is from 1000~10000mAh, and discharge voltage is 5~220V, discharge current：1000~
50000mAh。
Specifically, in the present embodiment, it is arranged to 18650 lithium ion portable power sources and is tested.
Embodiment 1：
The graphene lithium ion battery 200 of 10C rates 18650, monomer capacity are made using above-mentioned technical scheme
2500mAh, 4 batteries are used to connect to form portable power source of the capacity for 10000mAh.It is 20V to develop chip charging voltage, is filled
Electric current is 3000mA；Electric discharge uses 2,000 two interfaces of 5V, 1000mA and 5V.The fully charged time of this portable power source is about
30min。
Embodiment 2：
The graphene lithium ion battery 200 of 5C rates 18650, monomer capacity are made using above-mentioned technical scheme
3000mAh, 2 batteries are used to connect to form battery pack of the capacity for 6000mAh.It is 20V to develop chip charging voltage, charging electricity
Flow for 3000mA；Electric discharge uses 2,000 two interfaces of 5V, 1000mA and 5V.The fully charged time of this portable power source is about
20min。
Embodiment 3：
The graphene lithium ion battery 200 of 10C rates 18650, monomer capacity are made using above-mentioned technical scheme
2500mAh, the battery pack using 1 battery as 2500mAh.It is 20V to develop chip charging voltage, and charging current is
3000mA；Electric discharge uses 2,000 two interfaces of 5V, 1000mA and 5V.The fully charged time of this portable power source is about 10min.
Embodiment 4：
The graphene lithium ion battery 200 of 5C rates 18650, monomer capacity are made using above-mentioned technical scheme
3000mAh, 2 batteries are used to connect to form battery pack of the capacity for 6000mAh.It is 10V to develop chip charging voltage, charging electricity
Flow for 5000mA；Electric discharge uses 2,000 two interfaces of 5V, 1000mA and 5V.The fully charged time of this portable power source is about
25min。
Embodiment 5：
The graphene lithium ion battery 200 of 3C rates 18650, monomer capacity are made using above-mentioned technical scheme
3500mAh, 4 batteries are used to connect to form battery pack of the capacity for 14000mAh.It is 20V to develop chip charging voltage, charging
Electric current is 5000mA；Electric discharge uses 2,000 two interfaces of 5V, 1000mA and 5V.The fully charged time of this portable power source is about
30min。
Shown by above-mentioned test, in technical scheme, the charging interval between 10-30 minutes, with biography
The system lithium cell charging time is moved and then compared within several hours, has obvious benefit, greatly shortens the charging interval, meet people
Requirement.
The announcement and teaching of book according to the above description, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula is changed and changed.Therefore, the invention is not limited in embodiment disclosed and described above, to the present invention's
Some modifications and changes should also be as falling into the scope of the claims of the present invention.In addition, although used in this specification
Some specific terms, but these terms are merely for convenience of description, do not form any restrictions to the present invention.
Claims (2)
1. a kind of fast charge graphene lithium battery mobile power, including movable power shell, the movable power shell is interior to set graphite
Alkene lithium ion battery, it is characterised in that：
Graphene lithium ion battery includes the positive pole containing plus plate current-collecting body and coated in the positive-active layer on plus plate current-collecting body
Plate, negative plate, barrier film and conduction liquid containing negative current collector and coated in the negative electrode active layer on negative current collector；
Wherein, the negative electrode active layer is the composite three-dimensional porous structural material of carbon nano tube/graphene；
The positive-active layer is nanometer LiFePO4/G composites；
The conduction liquid is to include accounting for weight 2-3% graphene conductive additives, and the graphene conductive additive includes graphene 15-
25 parts, polyacrylonitrile fibre 3-5 parts, dispersant 5-8 parts, ethanol 10-15 parts, 0.5 part of titanium carbide.
A kind of 2. fast charge graphene lithium battery mobile power as claimed in claim 1, it is characterised in that：
The composite three-dimensional porous structural material of carbon nano tube/graphene is added in the reactor chamber using 20 layers of grapheme material
Catalyst and inert gas reaction；Then it is made by vapour deposition process, heating-up temperature is between 500-800 in preparation process
℃。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710629361.6A CN107579274A (en) | 2017-07-28 | 2017-07-28 | A kind of fast charge graphene lithium battery mobile power |
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| CN201710629361.6A CN107579274A (en) | 2017-07-28 | 2017-07-28 | A kind of fast charge graphene lithium battery mobile power |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301909A (en) * | 2018-11-27 | 2019-02-01 | 湖南衡盈电子科技有限公司 | Charger baby |
| CN109494844A (en) * | 2018-12-29 | 2019-03-19 | 陕西恒盈能源科技有限公司 | The very fast energy storage fast charging type portable power source of graphene |
-
2017
- 2017-07-28 CN CN201710629361.6A patent/CN107579274A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301909A (en) * | 2018-11-27 | 2019-02-01 | 湖南衡盈电子科技有限公司 | Charger baby |
| CN109494844A (en) * | 2018-12-29 | 2019-03-19 | 陕西恒盈能源科技有限公司 | The very fast energy storage fast charging type portable power source of graphene |
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