CN101924241B - Lithium-ion power battery system - Google Patents
Lithium-ion power battery system Download PDFInfo
- Publication number
- CN101924241B CN101924241B CN2010102490596A CN201010249059A CN101924241B CN 101924241 B CN101924241 B CN 101924241B CN 2010102490596 A CN2010102490596 A CN 2010102490596A CN 201010249059 A CN201010249059 A CN 201010249059A CN 101924241 B CN101924241 B CN 101924241B
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- CN
- China
- Prior art keywords
- negative pole
- field plate
- lithium
- mixed liquor
- power battery
- 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.)
- Expired - Fee Related
Links
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 23
- 239000002131 composite material Substances 0.000 claims description 18
- 239000004743 Polypropylene Substances 0.000 claims description 10
- 229920001155 polypropylene Polymers 0.000 claims description 10
- 239000004698 Polyethylene Substances 0.000 claims description 8
- 230000004888 barrier function Effects 0.000 claims description 8
- 229920000573 polyethylene Polymers 0.000 claims description 8
- -1 polypropylene Polymers 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 8
- 230000007547 defect Effects 0.000 abstract 1
- 239000012528 membrane Substances 0.000 abstract 1
- 239000007772 electrode material Substances 0.000 description 8
- 239000003792 electrolyte Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 1
- 229910010707 LiFePO 4 Inorganic materials 0.000 description 1
- 229910052493 LiFePO4 Inorganic materials 0.000 description 1
- 229910015645 LiMn Inorganic materials 0.000 description 1
- 229910013290 LiNiO 2 Inorganic materials 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000011532 electronic conductor Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000010416 ion conductor Substances 0.000 description 1
- QEXMICRJPVUPSN-UHFFFAOYSA-N lithium manganese(2+) oxygen(2-) Chemical compound [O-2].[Mn+2].[Li+] QEXMICRJPVUPSN-UHFFFAOYSA-N 0.000 description 1
- BFZPBUKRYWOWDV-UHFFFAOYSA-N lithium;oxido(oxo)cobalt Chemical compound [Li+].[O-][Co]=O BFZPBUKRYWOWDV-UHFFFAOYSA-N 0.000 description 1
- URIIGZKXFBNRAU-UHFFFAOYSA-N lithium;oxonickel Chemical compound [Li].[Ni]=O URIIGZKXFBNRAU-UHFFFAOYSA-N 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
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
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- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention relates to a lithium-ion power battery system comprising an anode mixed material storage tank and a cathode mixed material storage tank, wherein the anode mixed material storage tank passes through an anode current-collection flow field to form an anode mixed liquor loop through an anode guide pipe, the cathode mixed material storage tank passes through a cathode current-collection flow field to form a cathode mixed liquor loop through a cathode guide pipe, a battery membrane is arranged between an anode current-collection flow field plate and a cathode current-collection flow field plate, an anode driving pump is arranged on the anode mixed liquor loop, and a cathode driving pump is arranged on the cathode mixed liquor loop. The lithium-ion power battery system overcomes the defect of the application of the traditional lithium-ion power battery to an electric automobile, and has the advantages of good consistency of single batteries, adjustable battery capacity as required, no charging wait and the like.
Description
Technical field
The present invention relates to field of chemical power source, relate in particular to a kind of lithium-ion power battery system.
Background technology
Lithium ion battery has obtained development at full speed since last century, the nineties began commercialization.Since its have discharge voltage height, specific energy density high, have extended cycle life, self-discharge rate is low, advantages of environment protection, obtain a wide range of applications in fields such as mobile communication, portable electric appts, military affairs, medical treatment.
At present, the positive electrode of lithium ion battery mainly contains: cobalt-lithium oxide (LiCoO
2), manganese oxide lithium (LiMn
2O
4), nickel oxide lithium (LiNiO
2) and LiFePO4 (LiFePO
4).In the prior art, no matter be the small portable lithium ion battery, or power-type lithium ion battery, its structure all is that the electrode active material powder coated is consisted of electrode at electrode current collecting body, electrode and barrier film rationally are assembled in the battery case, in battery case, inject at last electrolyte and get final product.But, the lithium-ion-power cell of traditional structure is loaded on the electric automobile, also there are the following problems: 1) consistency between the batteries monomer battery is poor, and this will cause shorten the useful life of battery pack; 2) continual mileage is limited, and the electrokinetic cell of fixed capacity has limited the flying power of electric automobile; 3) charging interval long, charging interval length is the key factor applied at electric automobile of restriction battery.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of the present invention is to provide a kind of lithium-ion power battery system, this system has overcome the deficiency that traditional lithium-ion-power cell is used at electric automobile, has cell high conformity, battery capacity and can regulate as required, need not the advantages such as charging wait.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is:
A kind of lithium-ion power battery system, comprise anodal composite material storage tank 1 and negative pole composite material storage tank 2, anodal composite material storage tank 1 forms anodal mixed liquor loop by anodal conduit 11 via anode collection flow-field plate 7, negative pole composite material storage tank 2 forms negative pole mixed liquor loop by negative pole conduit 12 via negative pole currect collecting flow-field plate 8, between anode collection flow-field plate 7 and the negative pole currect collecting flow-field plate 8 battery diaphragm 9 is set, described anodal mixed liquor arranges anodal driving pump 3 on the loop, and described negative pole mixed liquor arranges negative pole driving pump 4 on the loop.
On described anodal mixed liquor loop and the described negative pole mixed liquor loop current blocking device 13 is installed respectively all.
Connect load 10 between described anode collection flow-field plate 7 and the described negative pole currect collecting flow-field plate 8.
Connect the first pile end plate 5 on the described anode collection flow-field plate 7, connect the second pile end plate 6 on the described negative pole currect collecting flow-field plate 8.
Described anode collection flow-field plate 7 and described negative pole currect collecting flow-field plate 8 can integratedly be set to bipolar plates.
Described battery diaphragm 9 adopts non-electronic electric conducting material.
Described non-electronic electric conducting material is polypropylene individual layer microporous barrier (PP) or polyethylene individual layer microporous barrier (PE) or polypropylene (PP)/polyethylene (PE) composite multi-layer microporous barrier.
The present invention compared with prior art has the following advantages:
1) high conformity of cell in the battery pack is conducive to improve the whole service life of battery pack;
2) can be by increasing the capacity of electrode active material raising battery, the service time of improving battery;
3) battery discharge complete after, change electrode active material, need not charging and wait for.
Description of drawings
Accompanying drawing is structural representation of the present invention.
Reference numeral:
1---anodal composite material storage tank; 2---negative pole composite material storage tank; 3---anodal driving pump;
4---the negative pole driving pump; 5---the first pile end plate; 6---the second pile end plate;
7---the anode collection flow-field plate; 8---the negative pole currect collecting flow-field plate; 9---battery diaphragm;
10---load; 11---anodal conduit; 12---the negative pole conduit;
13---the current blocking device.
Embodiment
Describe embodiments of the present invention in detail below in conjunction with accompanying drawing.
The present invention includes anodal composite material storage tank 1 and negative pole composite material storage tank 2, anodal composite material storage tank 1 forms anodal mixed liquor loop by anodal conduit 11 via anode collection flow-field plate 7, negative pole composite material storage tank 2 forms negative pole mixed liquor loop by negative pole conduit 12 via negative pole currect collecting flow-field plate 8, between anode collection flow-field plate 7 and the negative pole currect collecting flow-field plate 8 battery diaphragm 9 is set, described anodal mixed liquor arranges anodal driving pump 3 on the loop, and described negative pole mixed liquor arranges negative pole driving pump 4 on the loop.On described anodal mixed liquor loop and the described negative pole mixed liquor loop current blocking device 13 is installed respectively all.Connect load 10 between described anode collection flow-field plate 7 and the described negative pole currect collecting flow-field plate 8.Connect the first pile end plate 5 on the described anode collection flow-field plate 7, connect the second pile end plate 6 on the described negative pole currect collecting flow-field plate 8.Described battery diaphragm 9 adopts non-electronic electric conducting material polypropylene individual layer microporous barrier (PP).
Operation principle of the present invention is:
Anode material for lithium-ion batteries and electrolyte are mixed, make anodal mixed liquor, the anodal composite material storage tank 1 of packing into mixes lithium ion battery negative material and electrolyte, makes the negative pole mixed liquor, the negative pole composite material storage tank 2 of packing into; With anodal driving pump 3 anodal mixed liquor is transported in the anode collection flow-field plate 7, with negative pole driving pump 4 the negative pole mixed liquor is transported in the negative pole currect collecting flow-field plate 8; After the applied load, lithium ion is deviate from from positive electrode, enter electrolyte and move to negative pole by battery diaphragm 9, be embedded in the negative material, simultaneously, electronics is moved to plus plate current-collecting body from positive electrode, moves to negative current collector from additional circuit via load, then transfer on the negative material, finish the discharge process of lithium ion battery; Driving pump constantly pumps into the electrode material mixed liquor of charged state in the reactive flowfield plate, and battery will ceaselessly carry out discharge process, so the capacity of this battery system can be very large, and its power output and capacity are separate.Because the electrode mixed liquor is ionic conductor, is again electronic conductor, therefore, the current blocking device is installed in electrode mixed liquor loop, with the blocking-up by-pass current, improve the energy efficiency of battery.In addition, the afflux flow-field plate of battery system can be made bipolar plates, consists of the parallel combination of cell, improves the output voltage of battery, the high conformity between this batteries monomer battery, the useful life that is conducive to improve battery material.When the electrode material in the fluid reservoir all becomes discharge condition by charged state, the electrode mixed liquor of this discharge attitude is pumped, change the electrode material mixed liquor of Charging state, battery can then discharge like this, need not charging and wait for, the electrode material of discharge attitude uses other equipment to carry out charging process.Therefore, the present invention is particularly suitable for as electric automobile provides power, and it can make the driving ability of automobile improve, and need not charging and waits for that the program of changing electrode material and automobile fuel filler is suitable, is convenient to very much the use in the reality.
Claims (7)
1. lithium-ion power battery system, it is characterized in that, comprise anodal composite material storage tank (1) and negative pole composite material storage tank (2), anodal composite material storage tank (1) forms anodal mixed liquor loop by anodal conduit (11) via anode collection flow-field plate (7), negative pole composite material storage tank (2) forms negative pole mixed liquor loop by negative pole conduit (12) via negative pole currect collecting flow-field plate (8), between anode collection flow-field plate (7) and the negative pole currect collecting flow-field plate (8) battery diaphragm (9) is set, described anodal mixed liquor arranges anodal driving pump (3) on the loop, and described negative pole mixed liquor arranges negative pole driving pump (4) on the loop.
2. a kind of lithium-ion power battery system according to claim 1 is characterized in that, on described anodal mixed liquor loop and the described negative pole mixed liquor loop current blocking device (13) is installed respectively all.
3. a kind of lithium-ion power battery system according to claim 1 is characterized in that, connects load (10) between described anode collection flow-field plate (7) and the described negative pole currect collecting flow-field plate (8).
4. a kind of lithium-ion power battery system according to claim 1, it is characterized in that, the upper first pile end plate (5) that connects of described anode collection flow-field plate (7), the upper second pile end plate (6) that connects of described negative pole currect collecting flow-field plate (8).
5. a kind of lithium-ion power battery system according to claim 1 is characterized in that, described anode collection flow-field plate (7) and described negative pole currect collecting flow-field plate (8) can integratedly be set to bipolar plates.
6. a kind of lithium-ion power battery system according to claim 1 is characterized in that, described battery diaphragm (9) adopts non-electronic electric conducting material.
7. a kind of lithium-ion power battery system according to claim 6, it is characterized in that described non-electronic electric conducting material is polypropylene individual layer microporous barrier (PP) or polyethylene individual layer microporous barrier (PE) or polypropylene (PP)/polyethylene (PE) composite multi-layer microporous barrier.
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CN2010102490596A CN101924241B (en) | 2010-08-06 | 2010-08-06 | Lithium-ion power battery system |
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---|---|---|---|
CN2010102490596A CN101924241B (en) | 2010-08-06 | 2010-08-06 | Lithium-ion power battery system |
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CN101924241A CN101924241A (en) | 2010-12-22 |
CN101924241B true CN101924241B (en) | 2013-02-20 |
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CN2010102490596A Expired - Fee Related CN101924241B (en) | 2010-08-06 | 2010-08-06 | Lithium-ion power battery system |
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KR20140028032A (en) * | 2011-04-29 | 2014-03-07 | 지4 시너제틱스 인크. | Stacking and sealing configurations for energy storage devices |
CN104916864B (en) * | 2015-05-08 | 2018-01-16 | 深圳藈花新能源科技有限公司 | The height that a kind of bipolar template transitionality unit lithium battery of Cu-Al bimetal and its series connection are formed forces down changeable internal damp bvattery heap and method for packing |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101047261A (en) * | 2006-03-31 | 2007-10-03 | 中国科学院大连化学物理研究所 | Iron composite/halogen electrochemical system for flow electric storage |
CN101685854A (en) * | 2008-09-24 | 2010-03-31 | Tdk株式会社 | Electrode producing method and electrode producing apparatus |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101047261A (en) * | 2006-03-31 | 2007-10-03 | 中国科学院大连化学物理研究所 | Iron composite/halogen electrochemical system for flow electric storage |
CN101685854A (en) * | 2008-09-24 | 2010-03-31 | Tdk株式会社 | Electrode producing method and electrode producing apparatus |
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CN101924241A (en) | 2010-12-22 |
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