CN107546390A - A kind of aluminium ion battery of high graphitization degree positive pole - Google Patents
A kind of aluminium ion battery of high graphitization degree positive pole Download PDFInfo
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- CN107546390A CN107546390A CN201710685318.1A CN201710685318A CN107546390A CN 107546390 A CN107546390 A CN 107546390A CN 201710685318 A CN201710685318 A CN 201710685318A CN 107546390 A CN107546390 A CN 107546390A
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- aluminium ion
- graphitization
- ion battery
- positive pole
- graphite
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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
Abstract
The invention discloses a kind of aluminium ion battery of high graphitization degree positive pole, using the expanded graphite by 2,000 3000 DEG C of high-temperature process as the positive electrode of aluminium ion battery, graphitization expansion graphite is suppressed as aluminium ion anode by film forming using 1.5 35MPa pressure.The expanded graphite handled in the present invention through high temperature graphitization, the degree of graphitization of expanded graphite can be improved.Graphitization expansion graphite is as aluminium ion cell positive material, compared with pyrolytic graphite positive electrode, graphene aerogel positive electrode, not only cheap, cathode forming technology is simple, and there is good battery specific capacity and high rate performance, be advantageous to the commercial applications of aluminium ion battery.
Description
Technical field
The invention belongs to novel battery field, is related to a kind of aluminium ion battery of high graphitization degree positive pole.
Background technology
Stanford University professor Dai Hongjie illustrate one kind using pyrolytic graphite as positive pole, metallic aluminium be negative pole, ionic liquid
For the aluminium ion battery of electrolyte, there are ultrafast charging and discharging capabilities【Lin,M.C.,M.Gong,et al.(2015)."An
ultrafast rechargeable aluminium-ion battery."Nature520(7547):325-328】.The electricity
Pond can the continuous discharge and recharge under 4A/g current density, capacity holding 60mAh/g or so.By calculating, its energy density reaches
40Wh/kg is suitable with plumbic acid, Ni-MH battery energy density；Its power density reaches 3kW/kg, close with the power of ultracapacitor
Spend close., can be with further, since aluminium ion battery has used ionic liquid to be greatly improved as electrolyte, the security of battery
Avoid the combustion explosion accident occurred during lithium ion battery use.But pyrolytic graphite positive electrode is to pass through methane gas
Chemical gaseous phase depositing process preparation occurs in nickel foam for body, is also needed to after the completion of pyrolytic graphite deposition by nickel foam hydrochloric acid
Remove, whole technological process is complicated, is not easy to industrialize.
The superb professor of Zhejiang University does positive pole using graphene aerogel, on the basis of the research of foregoing aluminium ion battery,
, can the continuous discharge and recharge under 5A/g current densities by the capacity boost of aluminium ion battery to 100mAh/g【Chen,H.,
F.Guo,et al.(2017)."A Defect-Free Principle for Advanced Graphene Cathode of
Aluminum-Ion Battery."Advanced Materials 29(12).】.It is computed, the aluminium ion battery energy density
Reach 60Wh/kg, power density reaches 30kW/kg.Meanwhile superb professor also proposes a kind of the " intact of Graphene electrodes material
Fall into " design principle：Graphene aerogel passes through high-temperature process, and defect is reduced, and structure is more regular, the activity as battery material
Position increase, thus battery capacity can be improved.But the greatest problem of graphene aerogel positive electrode is, the valency of graphene
Lattice are very expensive, are suitable only for doing Science Explorations, can not industrial applications.
The content of the invention
It is an object of the present invention to provide a kind of aluminium ion battery of high graphitization degree positive pole, solves existing aluminium ion battery
The problem of positive electrode preparation technology complexity and expensive raw material price.
The technical solution adopted in the present invention is：A kind of aluminium ion battery of high graphitization degree positive pole, just extremely high graphite
The expandable graphite sheet of change degree, electrolyte are 1- ethyl-3-methylimidazoles chloride and alchlor according to mol ratio 1:1.0~1:
The mixture of 1.6 compositions；The expandable graphite sheet of the high graphitization degree is by expanded graphite through being incubated 5 at a temperature of 2000-3000 DEG C
After -10 hours minutes, then the compacting film forming of the pressure through 1.5-35MPa.
Further, there is barrier film, the barrier film is made up of the glass fibre of 1-6 layers between the positive pole and negative pole.
Further, the negative pole is aluminium foil, aluminium flake etc..
The beneficial effects of the present invention are：The expanded graphite handled through high temperature graphitization, can remove expanded graphite Central Plains
The non-heteroatoms having, improve the degree of graphitization of expanded graphite.Graphitization expansion graphite as aluminium ion cell positive material, with
Pyrolytic graphite positive electrode, graphene aerogel positive electrode are compared, and not only cheap, cathode forming technology is simple, and
With good battery specific capacity and high rate performance, be advantageous to the commercial applications of aluminium ion battery.
Brief description of the drawings
Fig. 1 be in embodiment 1 expanded graphite through the Raman spectrogram before and after 2500 DEG C of graphitization processings.
Fig. 2 be embodiment 1 prepare, the cycle performance figure of the button aluminium ion battery of graphitization expansion graphite positive pole.
Fig. 3 be embodiment 2 prepare, the cycle performance figure of the button aluminium ion battery of graphitization expansion graphite positive pole.
Fig. 4 be embodiment 3 prepare, the cycle performance figure of the Soft Roll aluminium ion battery of graphitization expansion graphite positive pole.
Embodiment
With reference to embodiment, the present invention is further elaborated.
It should be noted that embodiments herein is merely to illustrate the present invention, rather than limitation the scope of the present invention.
It shall yet further be noted that after present disclosure is read, various changes that those skilled in the art are done to the present invention and
Modification, these equivalent form of values also belong to the restriction scope of claims of the present invention.
Embodiment 1：
(1) business expanded graphite is put into high temperature graphitization stove, 5 minutes is incubated at a temperature of 2500 DEG C, as shown in figure 1,
After 2500 DEG C of high-temperature process, degree of graphitization greatly improves expanded graphite；
(2) the above-mentioned expanded graphite through graphitization processing is suppressed into film forming using 1.5MPa pressure, as positive pole；
(3) 4 layers of glass fibre (Whatman) is used as the barrier film between positive pole and negative pole aluminium foil；
(4) the use of the mixture of alchlor and 1- ethyl-3-methylimidazole chlorides is electrolyte, 1- ethyl -3- first
Base imidazolium chloride mixes mol ratio with alchlor as 1:1.0；
(5) button cell is assembled in the following order：The graphite prepared in above-mentioned (2) is put into anode cover (CR2025)
Change expanded graphite cathode film；On graphitization expansion graphite cathode film, 4 layers of fibreglass diaphragm (Whatman) is put, is added dropwise suitable
The mixed proportion 1 of amount:1.0 electrolyte；Then negative pole aluminium foil, alignment compacting, lid are put on fibreglass diaphragm (Whatman)
Upper negative electrode casing, is finally encapsulated using button cell sealing machine.
Using blue electrical measurement test system, 5A/g constant current charge-discharge experiments are carried out to the button cell of above-mentioned assembling, found this
The capacity of the button aluminium ion battery of graphitization expansion graphite positive pole may remain in 92mAh/g.As shown in Figure 2.
Embodiment 2：
(1) business expanded graphite is suppressed into film forming using 15MPa pressure；
(2) expandable graphite sheet by compacting in above-mentioned (1) is put into high temperature graphitization stove, and it is small that 2 are incubated at a temperature of 2000 DEG C
When, graphitization expansion graphite film is obtained, as positive pole；
(3) 1 layer of glass fibre (Whatman) is used as the barrier film between positive pole and negative pole aluminium flake；
(4) the use of the mixture of alchlor and 1- ethyl-3-methylimidazole chlorides is electrolyte, 1- ethyl -3- first
Base imidazolium chloride mixes mol ratio with alchlor as 1:1.4；
(5) button cell is assembled in the following order：The graphite prepared in above-mentioned (2) is put into anode cover (CR2025)
Change expanded graphite cathode film；On graphitization expansion graphite cathode film, 1 layer of fibreglass diaphragm (Whatman) is put, is added dropwise suitable
The mixed proportion 1 of amount:1.4 electrolyte；Then negative pole aluminium flake, alignment compacting, lid are put on fibreglass diaphragm (Whatman)
Upper negative electrode casing, is finally encapsulated using button cell sealing machine.
Using blue electrical measurement test system, 5A/g constant current charge-discharge experiments are carried out to the button cell of above-mentioned assembling, found this
The capacity of the button aluminium ion battery of graphitization expansion graphite positive pole may remain in 93mAh/g.As shown in Figure 3.
Embodiment 3：
(1) business expanded graphite is put into high temperature graphitization stove, 10 hours is incubated at a temperature of 3000 DEG C；
(2) the above-mentioned expanded graphite through graphitization processing is suppressed into film forming using 35MPa pressure, as positive pole；
(3) 6 layers of glass fibre (Whatman) is used as the barrier film between positive pole and negative pole aluminium foil；
(4) the use of the mixture of alchlor and 1- ethyl-3-methylimidazole chlorides is electrolyte, 1- ethyl -3- first
Base imidazolium chloride mixes mol ratio with alchlor as 1:1.6；
(5) soft-package battery is assembled in the following order：Using the graphitization expansion graphite cathode film prepared in above-mentioned (2),
Positive pole as soft-package battery；The negative pole of soft-package battery is used as using aluminium foil；In graphitization expansion graphite cathode film and aluminium foil negative pole
Between, the fibreglass diaphragm (Whatman) of 6 layers of placement, alignment is fixed, and is put into soft-package battery bag, is added appropriate mixing
Ratio 1:1.6 electrolyte, finally encapsulated using soft-package battery packaging machine.
Using blue electrical measurement test system, 5A/g constant current charge-discharge experiments are carried out to the soft-package battery of above-mentioned assembling, found this
The capacity of the Soft Roll aluminium ion battery of graphitization expansion graphite positive pole may remain in 88mAh/g.As shown in Figure 4.
Claims (3)
- A kind of 1. aluminium ion battery of high graphitization degree positive pole, it is characterised in that the just extremely expandable graphite sheet of high graphitization degree, Electrolyte is 1- ethyl-3-methylimidazoles chloride and alchlor according to mol ratio 1:1.0~1:The mixture of 1.6 compositions； The expandable graphite sheet of the high graphitization degree by expanded graphite after being incubated -10 hours 5 minutes at a temperature of 2000-3000 DEG C, then Pressure compacting film forming through 1.5-35MPa.
- 2. aluminum cell according to claim 1, it is characterised in that there is barrier film between the positive pole and negative pole, it is described every Film is made up of the glass fibre of 1-6 layers.
- 3. aluminum cell according to claim 1, it is characterised in that the negative pole is aluminium foil, aluminium flake etc..
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710685318.1A CN107546390A (en) | 2017-08-11 | 2017-08-11 | A kind of aluminium ion battery of high graphitization degree positive pole |
| PCT/CN2018/084350 WO2019029192A1 (en) | 2017-08-11 | 2018-04-25 | Aluminum battery |
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| CN201710685318.1A CN107546390A (en) | 2017-08-11 | 2017-08-11 | A kind of aluminium ion battery of high graphitization degree positive pole |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493420A (en) * | 2018-04-04 | 2018-09-04 | 天津大学 | A kind of graphited graphene derived material of aluminium ion battery local |
| WO2019029192A1 (en) * | 2017-08-11 | 2019-02-14 | 杭州高烯科技有限公司 | Aluminum battery |
| CN110048110A (en) * | 2019-04-25 | 2019-07-23 | 杭州高烯科技有限公司 | A kind of preparation method and applications of graphene combination electrode material |
| CN113036122A (en) * | 2021-03-09 | 2021-06-25 | 中南大学 | Expanded graphite cathode material, preparation method thereof, electrode and aluminum ion battery |
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| JP2014222609A (en) * | 2013-05-13 | 2014-11-27 | 学校法人 関西大学 | Aluminum secondary battery |
| CN104810544A (en) * | 2015-04-20 | 2015-07-29 | 北京科技大学 | Rechargeable aluminum ion battery and preparation method thereof |
| CN105810947A (en) * | 2016-04-29 | 2016-07-27 | 深圳博磊达新能源科技有限公司 | Aluminum ion battery anode material, electrode and aluminum ion battery |
| CN106356500A (en) * | 2016-11-29 | 2017-01-25 | 珠海银隆新能源有限公司 | Aluminum ion battery and preparation method thereof |
| CN106654300A (en) * | 2016-12-19 | 2017-05-10 | 中国科学院山西煤炭化学研究所 | Method for preparing monodisperse metal atom/graphene composite material employing electrochemical dissolved graphite |
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- 2017-08-11 CN CN201710685318.1A patent/CN107546390A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014222609A (en) * | 2013-05-13 | 2014-11-27 | 学校法人 関西大学 | Aluminum secondary battery |
| CN104810544A (en) * | 2015-04-20 | 2015-07-29 | 北京科技大学 | Rechargeable aluminum ion battery and preparation method thereof |
| CN105810947A (en) * | 2016-04-29 | 2016-07-27 | 深圳博磊达新能源科技有限公司 | Aluminum ion battery anode material, electrode and aluminum ion battery |
| CN106356500A (en) * | 2016-11-29 | 2017-01-25 | 珠海银隆新能源有限公司 | Aluminum ion battery and preparation method thereof |
| CN106654300A (en) * | 2016-12-19 | 2017-05-10 | 中国科学院山西煤炭化学研究所 | Method for preparing monodisperse metal atom/graphene composite material employing electrochemical dissolved graphite |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019029192A1 (en) * | 2017-08-11 | 2019-02-14 | 杭州高烯科技有限公司 | Aluminum battery |
| CN108493420A (en) * | 2018-04-04 | 2018-09-04 | 天津大学 | A kind of graphited graphene derived material of aluminium ion battery local |
| CN110048110A (en) * | 2019-04-25 | 2019-07-23 | 杭州高烯科技有限公司 | A kind of preparation method and applications of graphene combination electrode material |
| CN113036122A (en) * | 2021-03-09 | 2021-06-25 | 中南大学 | Expanded graphite cathode material, preparation method thereof, electrode and aluminum ion battery |
| CN113036122B (en) * | 2021-03-09 | 2022-05-24 | 中南大学 | Expanded graphite cathode material, preparation method thereof, electrode and aluminum ion battery |
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