CN102800865A - Lithium battery with total solid ions for conducting power - Google Patents
Lithium battery with total solid ions for conducting power Download PDFInfo
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- CN102800865A CN102800865A CN2012103085981A CN201210308598A CN102800865A CN 102800865 A CN102800865 A CN 102800865A CN 2012103085981 A CN2012103085981 A CN 2012103085981A CN 201210308598 A CN201210308598 A CN 201210308598A CN 102800865 A CN102800865 A CN 102800865A
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Abstract
The invention provides a lithium battery with total solid ions for conducting power, effectively solving the problems in the prior art that the energy density and the power density are low and the service life is short. The technical scheme is that the lithium battery comprises a positive electrode, a negative electrode and a housing, wherein the positive electrode and the negative electrode are arranged in the housing; a positive pole connected with the positive electrode and a negative pole connected with the negative electrode are respectively arranged on the housing; the positive electrode is a positive plate comprising of aluminum foil and nanocarbon/sulphate composite material coated thick in 2 to 10 microns on the aluminum coil; and an LiPON solid electrolyte film is arranged between the positive electrode and the negative electrode. The lithium battery has a simple structure, is easy to produce, has a good effect in use, high energy density, high power density, high charging and discharging rate and long service life, and is an innovation based on a power lithium battery and an energy storage battery.
Description
Technical field
The present invention relates to the energy, particularly a kind of lithium battery of total solids ionic conduction power.
Background technology
Lithium ion battery because of himself superior function has obtained development rapidly, has obtained using widely in a plurality of fields such as traffic, mobile communication, notebook computer and digital electronic goods since early 1990s is realized commercialization.But the electrolyte of the main lithium ion battery that uses mainly is to contain the flammable liquid organic substance at present, and this has in use brought very big potential safety hazard for lithium ion battery, and the continuation that has limited its range of application to a certain extent enlarges.Though polymer dielectric has been alleviated this problem to a certain extent, however since polymer dielectric itself in use occur " dehydration phenomenon " easily and determined that with the problems such as chemical property instability of lithium or other high potential intercalation materials this material is not a kind of perfect solution.And the solid electrolyte that uses non-flammable lithium ion conduction can not only be got rid of the problem of internal short-circuit of battery and liquid electrolyte leakage, can also thoroughly solve because the security hidden trouble that electrolyte causes.LiFePO
4Battery is as first-selected now electrokinetic cell, and its energy density is about 100Wh/Kg, and its performance can not satisfy the requirement of the vehicles far away.21 century the energy and environment be the strategic issue of national sustainable development; Along with human economy and development of science and technology; Demands for energy is increased day by day, the minimizing rapidly of the non-renewable fuel of petrochemical industry class, the exploitation safety, environmental protection, new forms of energy are present task of top priority efficiently.
At present; Known lithium-sulfur cell technology all adopts organic liquid as electrolyte, and in charge and discharge process, the sulphur positive electrode active materials very easily is dissolved in the electrolyte; Reduce the conductivity of electrolyte and the utilance of positive active material, influenced the cycle performance and the security performance of lithium-sulfur cell.
Summary of the invention
To above-mentioned situation, for overcoming the defective of prior art, the present invention's purpose just provides a kind of lithium battery of total solids ionic conduction power, can effectively solve the prior art energy density and power density low, the problem that useful life is short.
The technical scheme that the present invention solves is; Comprise positive pole, negative pole and shell; Anodal, negative pole places in the shell, has respectively on the shell with the anodal positive terminal that links to each other to reach the negative terminal that links to each other with negative pole, and positive pole is by aluminium foil and the positive plate that nano-sized carbon/the sulphur composite material constitutes that is coated on the 2-10 micron thick on the aluminium foil; The LiPON solid electrolyte film is arranged between described positive pole, the negative pole, and the LiPON solid electrolyte film is by Li
3PO
412H
2O under the protection of N gas, the LiPON film of the 2-10 micron thick of magnetron sputtering deposition on positive plate; Described negative pole is in vacuum 10
-2-10
-5During the atmosphere of Pa and Ar throughput 20-50sccm is enclosed, with the vacuum thermal evaporation method lithium metal is deposited on the LiPON solid electrolyte film and constitutes, thickness is the 2-10 micron; Described positive plate is by quality ratio: nano-sized carbon/sulphur closes the mixed that material material ︰ leads the black ︰ binding agent of electric charcoal=80 ︰, 10 ︰ 10 again, is coated in equably on the aluminium foil, processes positive plate through conventional drying, roll-in, section; Described nano-sized carbon/sulphur composite material is to carry out vacuum by nano-sized carbon and sulphur nano particle with mass ratio 30 ︰ 70 to mix, in ball mill ball milling 1-3 hour then, put into autoclave, and 200 ℃ of insulations 8-15 hour down, be cooled to room temperature again.
The present invention is simple in structure, is easy to produce, and result of use is good, and energy density, power density are big, and charge-discharge magnification is high, and long service life is the innovation on the energy.
Description of drawings
Fig. 1 is a structural profile front view of the present invention.
Embodiment
Elaborate below in conjunction with accompanying drawing and embodiment specific embodiments of the invention.
Provide by Fig. 1; Lithium battery of the present invention comprises positive pole 1, negative pole 3 and shell 4; Positive pole 1, negative pole 3 place in the shell 4, have respectively on the shell with the anodal positive terminal that links to each other 5 to reach the negative terminal 6 that links to each other with negative pole, and positive pole is by aluminium foil and the positive plate that nano-sized carbon/the sulphur composite material constitutes that is coated on 2-10 micron thick on the aluminium foil; LiPON solid electrolyte film 2 is arranged between described positive pole, the negative pole, and LiPON solid electrolyte film 2 is by Li
3PO
412H
2O under the protection of N gas, the LiPON film of the 2-10 micron thick of magnetron sputtering deposition on positive plate; Described negative pole is in vacuum 10
-2-10
-5During the atmosphere of Pa and Ar throughput 20-50sccm is enclosed, with the vacuum thermal evaporation method lithium metal is deposited on the LiPON solid electrolyte film and constitutes, thickness is the 2-10 micron; Described positive plate is by quality ratio: nano-sized carbon/sulphur closes the mixed that material material ︰ leads black ︰ binding agent PVDF=80 ︰ 10 ︰ 10 of electric charcoal again, is coated in equably on the aluminium foil, processes positive plate through conventional drying, roll-in, section; Described nano-sized carbon/sulphur composite material is to carry out vacuum by nano-sized carbon and sulphur with mass ratio 30-70 ︰ 70-30 to mix; In ball mill ball milling 1-3 hour then; Put in the autoclave (autoclave is chemical industry equipment commonly used, as: Jiangsu is north plough the autoclave that landification equipment Co., Ltd produces), 200 ℃ of insulations 8-15 hour down; Be cooled to room temperature again.
Described nano-sized carbon be macropore carbon, the 2-50nm of 50-100nm mesoporous carbon, one or more in the multistage hole carbon of the microporous carbon of 2nm, 2-15nm etc. the weight mixture; Described sulphur is sulphur nano particle or sulphur nano wire; Described shell be by plastic-aluminum flexible packing or plastics, alloy, stainless steel rigid package constitute a kind of.
In practical implementation, described nano-sized carbon/sulphur composite material can be provided by following examples:
The preparation of nano-sized carbon/sulphur composite material: macropore carbon and the sulphur nano particle of 50-100nm are carried out the vacuum mixing by mass ratio 30:70; In ball grinder, ball milling 1-3h puts into autoclave with 200 ℃ of insulation 8-15h then; After being cooled to room temperature, obtain nano-sized carbon/sulphur composite material.
The preparation of nano-sized carbon/sulphur composite material: mesoporous carbon and the sulphur nano wire of 2-50nm are carried out the vacuum mixing by mass ratio 60:40; In ball grinder, ball milling 1-3h puts into autoclave with 200 ℃ of insulation 8-15h then; After being cooled to room temperature, obtain nano-sized carbon/sulphur composite material.
The preparation of nano-sized carbon/sulphur composite material: with the multistage hole carbon of 2-15nm with < microporous carbon of 2nm is mixed into nano-sized carbon with mass ratio 1:1; With the nano-sized carbon and the sulphur nano wire that mix, or nano-sized carbon carries out vacuum with the sulphur nano particle by mass ratio 70:30 and mixes, then in ball grinder; Ball milling 1-3h; Put into autoclave with 200 ℃ of insulation 8-15h, after being cooled to room temperature, obtain nano-sized carbon/>sulphur composite material.
That sulphur has is rich in minerals, low in raw material cost, eco-friendly characteristics, and energy density is high, can effectively improve the power density and and the energy density of lithium battery.
The alleged lithium battery of the present invention can be to be packaged into cell by body seal, also can be to use by way of coiling and lamination according to difference to become the lithium battery group.
Nano-sized carbon has three-dimensional conductive network structure, higher conductivity, bigger specific area and adsorptivity; Simultaneously; Adopt nano level sulfur granules, sulphur nano wire can efficient melting in the fine duct of nano-sized carbon, reduce the loss of sulphur active material, improve cycle performance.
The LiPON solid electrolyte film has the superionic conductors function as electrolyte, when having than high ionic conductivity and low electronic conductivity, can effectively reduce the loss of positive active material, keeps high energy density, improves security performance.
Negative pole adopts the lithium metal material of vacuum evaporation, can effectively suppress the generation of Li dendrite, improves coefficient of safety.
The present invention is through test and on probation; Effect is very good; Efficiently solve existing lithium-sulfur cell technology and all adopt organic liquid as electrolyte, in charge and discharge process, the sulphur positive electrode active materials very easily is dissolved in the electrolyte; Reduce the conductivity of electrolyte and the utilance of positive active material, influenced the cycle performance of lithium-sulfur cell and the problem of security performance.
Energy density of the present invention and power density are high, and high rate performance, stable circulation performance and fail safe are good, solve existing LiFePO
4The technical problem that the energy density of electrokinetic cell is lower, and the anodal lithium sulphur active material of existing lithium-sulfur cell is dissolved in organic electrolyte, recycles short technical barrier of life-span and cause; Through the test, energy density of the present invention more than 500Wh/Kg, power density 3000W/Kg; Charge-discharge magnification 20C circulates capability retention 90% 2000 times; Have good cycle performance, non-environmental-pollution, be existing more than 2 times of lithium battery useful life; Be the innovation on lithium dynamical battery and the energy-storage battery, remarkable economical and social benefit are arranged.
Claims (6)
1. the lithium battery of a total solids ionic conduction power; Comprise positive pole (1), negative pole (3) and shell (4), anodal (1), negative pole (3) place in the shell (4), have respectively on the shell with the anodal positive terminal (5) that links to each other to reach the negative terminal (6) that links to each other with negative pole; It is characterized in that; Positive pole is by aluminium foil and the positive plate that nano-sized carbon/the sulphur composite material constitutes that is coated on 2-10 micron thick on the aluminium foil, and LiPON solid electrolyte film (2) is arranged between described positive pole, the negative pole, and the LiPON solid electrolyte film is by Li
3PO
412H
2O under the protection of N gas, the LiPON film of magnetron sputtering deposition 2-10 micron thick on positive plate; Described negative pole is in vacuum 10
-2-10
-5During the atmosphere of Pa and Ar throughput 20-50sccm is enclosed; With the vacuum thermal evaporation method lithium metal is deposited on the LiPON solid electrolyte film and constitutes; Thickness is the 2-10 micron; Described positive plate is by quality ratio: nano-sized carbon/sulphur closes the mixed that material material ︰ leads black ︰ binding agent PVDF=80 ︰ 10 ︰ 10 of electric charcoal again, is coated in equably on the aluminium foil, processes positive plate through conventional drying, roll-in, section; Described nano-sized carbon/sulphur composite material is to carry out vacuum by nano-sized carbon and sulphur with mass ratio 30-70 ︰ 70-30 to mix, in ball mill ball milling 1-3 hour then, put into autoclave, and 200 ℃ of insulations 8-15 hour down, be cooled to room temperature again.
2. the lithium battery of total solids ionic conduction power according to claim 1; It is characterized in that, described nano-sized carbon be macropore carbon, the 2-50nm of 50-100nm mesoporous carbon, one or more in the multistage hole carbon of the microporous carbon of 2nm, 2-15nm etc. the weight mixture; Described sulphur is sulphur nano particle or sulphur nano wire.
3. the lithium battery of total solids ionic conduction power according to claim 1 is characterized in that, described shell be by plastic-aluminum flexible packing or plastics, alloy, stainless steel rigid package constitute a kind of.
4. the lithium battery of total solids ionic conduction power according to claim 1; It is characterized in that described nano-sized carbon/sulphur composite material is that the macropore carbon of 50-100nm and sulphur nano particle are carried out the vacuum mixing by mass ratio 30:70, then in ball grinder; Ball milling 1-3h; Put into autoclave with 200 ℃ of insulation 8-15h, after being cooled to room temperature, the nano-sized carbon that obtains/sulphur composite material.
5. the lithium battery of total solids ionic conduction power according to claim 1; It is characterized in that described nano-sized carbon/sulphur composite material is that the mesoporous carbon of 2-50nm and sulphur nano wire are carried out the vacuum mixing by mass ratio 60:40, then in ball grinder; Ball milling 1-3h; Put into autoclave with 200 ℃ of insulation 8-15h, after being cooled to room temperature, the nano-sized carbon that obtains/sulphur composite material.
6. the lithium battery of total solids ionic conduction power according to claim 1; It is characterized in that described nano-sized carbon/sulphur composite material is with the multistage hole carbon of 2-15nm and < microporous carbon of 2nm is with the composite nano-sized carbon of mass ratio 1:1, with the nano-sized carbon and the sulphur nano wire that mix; Or nano-sized carbon is carried out vacuum with the sulphur nano particle by mass ratio 70:30 and is mixed; In ball grinder, ball milling 1-3h puts into autoclave with 200 ℃ of insulation 8-15h then; After being cooled to room temperature, the nano-sized carbon that obtains/>sulphur composite material.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103094535A (en) * | 2013-01-21 | 2013-05-08 | 北京化工大学 | Sulfur/carbon porous nano composite material and preparation method and application thereof |
| CN103219526A (en) * | 2013-04-02 | 2013-07-24 | 复旦大学 | Cellular morphology lithium-air battery anode with hierarchical porous structure, and preparation method thereof |
| CN105186043A (en) * | 2015-09-23 | 2015-12-23 | 厦门理工学院 | All-solid-state LiMn2O4-Li4Ti5O12 battery and preparation method thereof |
| CN105449216A (en) * | 2015-11-18 | 2016-03-30 | 何整风 | Lithium battery |
| CN105633479A (en) * | 2016-03-11 | 2016-06-01 | 南京大学 | Preparation method of all-solid-state lithium-sulfur battery |
| CN106091210A (en) * | 2016-08-18 | 2016-11-09 | 孟玲 | Splash water type humidifier |
| CN106264849A (en) * | 2016-08-18 | 2017-01-04 | 孟玲 | It is precious that water is warmed up in the heating capable of circulation of a kind of charging property |
| WO2018209762A1 (en) * | 2017-05-15 | 2018-11-22 | 哈尔滨光宇电源股份有限公司 | Lithium battery anode and preparation method and application thereof |
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| CN1945881A (en) * | 2006-11-02 | 2007-04-11 | 复旦大学 | Full solid thin film lithium battery and its producing method |
| CN101562244A (en) * | 2009-06-02 | 2009-10-21 | 北京理工大学 | Method for preparing elemental sulfur composite material used by lithium secondary battery |
| CN101986443A (en) * | 2010-05-25 | 2011-03-16 | 耿世达 | Lithium sulfur battery anode material and preparation method thereof |
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2012
- 2012-08-28 CN CN2012103085981A patent/CN102800865A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1945881A (en) * | 2006-11-02 | 2007-04-11 | 复旦大学 | Full solid thin film lithium battery and its producing method |
| CN101562244A (en) * | 2009-06-02 | 2009-10-21 | 北京理工大学 | Method for preparing elemental sulfur composite material used by lithium secondary battery |
| CN101986443A (en) * | 2010-05-25 | 2011-03-16 | 耿世达 | Lithium sulfur battery anode material and preparation method thereof |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103094535A (en) * | 2013-01-21 | 2013-05-08 | 北京化工大学 | Sulfur/carbon porous nano composite material and preparation method and application thereof |
| CN103094535B (en) * | 2013-01-21 | 2015-07-08 | 北京化工大学 | Sulfur/carbon porous nano composite material and preparation method and application thereof |
| CN103219526A (en) * | 2013-04-02 | 2013-07-24 | 复旦大学 | Cellular morphology lithium-air battery anode with hierarchical porous structure, and preparation method thereof |
| CN105186043A (en) * | 2015-09-23 | 2015-12-23 | 厦门理工学院 | All-solid-state LiMn2O4-Li4Ti5O12 battery and preparation method thereof |
| CN105449216A (en) * | 2015-11-18 | 2016-03-30 | 何整风 | Lithium battery |
| CN105449216B (en) * | 2015-11-18 | 2018-10-23 | 何整风 | A kind of lithium battery |
| CN105633479A (en) * | 2016-03-11 | 2016-06-01 | 南京大学 | Preparation method of all-solid-state lithium-sulfur battery |
| CN106091210A (en) * | 2016-08-18 | 2016-11-09 | 孟玲 | Splash water type humidifier |
| CN106264849A (en) * | 2016-08-18 | 2017-01-04 | 孟玲 | It is precious that water is warmed up in the heating capable of circulation of a kind of charging property |
| WO2018209762A1 (en) * | 2017-05-15 | 2018-11-22 | 哈尔滨光宇电源股份有限公司 | Lithium battery anode and preparation method and application thereof |
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Application publication date: 20121128 |