CN207282618U - A kind of lithium ion battery two-layer compound iron phosphate lithium electrode - Google Patents
A kind of lithium ion battery two-layer compound iron phosphate lithium electrode Download PDFInfo
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- CN207282618U CN207282618U CN201721296383.7U CN201721296383U CN207282618U CN 207282618 U CN207282618 U CN 207282618U CN 201721296383 U CN201721296383 U CN 201721296383U CN 207282618 U CN207282618 U CN 207282618U
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 42
- 150000001875 compounds Chemical class 0.000 title claims abstract description 25
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 title claims abstract description 24
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 27
- 239000011149 active material Substances 0.000 claims abstract description 17
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 54
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 38
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 38
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 36
- 239000006258 conductive agent Substances 0.000 claims description 27
- 239000000853 adhesive Substances 0.000 claims description 25
- 230000001070 adhesive effect Effects 0.000 claims description 25
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 22
- 239000006230 acetylene black Substances 0.000 claims description 21
- -1 polytetrafluoroethylene Polymers 0.000 claims description 21
- 239000010439 graphite Substances 0.000 claims description 15
- 229910002804 graphite Inorganic materials 0.000 claims description 15
- 239000002904 solvent Substances 0.000 claims description 15
- 238000000576 coating method Methods 0.000 claims description 7
- 238000005260 corrosion Methods 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- 230000007797 corrosion Effects 0.000 claims description 6
- 230000002401 inhibitory effect Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 239000000969 carrier Substances 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 230000001681 protective effect Effects 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 209
- 230000005611 electricity Effects 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 229910052493 LiFePO4 Inorganic materials 0.000 description 3
- 238000009831 deintercalation Methods 0.000 description 3
- 238000007086 side reaction Methods 0.000 description 3
- 239000005955 Ferric phosphate Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229940032958 ferric phosphate Drugs 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 229910000399 iron(III) phosphate Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- OXHNLMTVIGZXSG-UHFFFAOYSA-N 1-Methylpyrrole Chemical class CN1C=CC=C1 OXHNLMTVIGZXSG-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000002573 ethenylidene group Chemical group [*]=C=C([H])[H] 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010450 olivine Substances 0.000 description 1
- 229910052609 olivine Inorganic materials 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
Classifications
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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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- Battery Electrode And Active Subsutance (AREA)
Abstract
It the utility model is related to a kind of lithium ion battery two-layer compound iron phosphate lithium electrode, including electrode outer layer carrier and electrode inner layer carrier, the outer surface of the electrode outer layer carrier is equipped with outer layer aluminum sheet, the lower end of the outer layer aluminum sheet is installed with outer layer active material area, and the electrode outer layer carrier is internally provided with active hole.By setting two carriers of electrode outer layer carrier and electrode inner layer carrier; form two-layer composite; property is different between the two; it is each useful; by setting outer layer aluminum sheet to form a protective oxide layer, it can effectively prevent electrode from some unrelated reactions occur, by setting active hole greatly to increase the effective area of electrode outer layer carrier and electrode inner layer carrier; make embedded lithium ion more, the situation for solving existing lithium ion battery battery off-capacity.
Description
Technical field
Technical field of lithium ion is the utility model is related to, is specially a kind of lithium ion battery two-layer compound ferric phosphate
Lithium electrode.
Background technology
Lithium ion battery is a kind of secondary cell, it relies primarily on lithium ion, and movement carrys out work between a positive electrode and a negative electrode.
In charge and discharge process, lithium ion embedded and deintercalation back and forth between two electrodes：During charging, lithium ion is passed through from cathode deintercalation
Electrolyte insertion anode is crossed, anode is in rich lithium state；Then opposite during electric discharge, Padhi in 1996 and Goodenough have found tool
There are the phosphate of olivine structural, such as LiFePO4, security, especially high temperature resistant, overcharging resisting are had more than traditional positive electrode
Electrical property is single layer structure mostly far more than conventional lithium ion battery material, lithium ion battery of today, and performance is bad, and battery
Capacitance deficiency, can not use for a long time, the safeguard measure of itself is inadequate, and some other side reactions easily occur.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of lithium ion battery two-layer compound LiFePO4 electricity
Pole, solves the problems, such as existing lithium ion battery battery off-capacity.
In order to achieve the above object, the utility model is achieved by the following technical programs：Including electrode outer layer carrier and
Electrode inner layer carrier, the outer surface of electrode outer layer carrier are equipped with outer layer aluminum sheet, and outer layer aluminum sheet lower end is installed with
Outer layer active material area, and the lower end in outer layer active material area is installed with outer layer conductive agent area, outer layer conductive agent area it is interior
Portion is installed with outer layer acetylene black area, and the side of outer layer acetylene black area is equipped with outer layer graphite area, the lower end in outer layer conductive agent area
Outer layer adhesive area is installed with, and the inside of outer layer adhesive area is installed with outer layer polytetrafluoroethylene (PTFE) area, outer layer glues
The lower end in mixture area is equipped with outer layer solvent application block, and outer layer solvent application block is fixedly connected with outer layer adhesive area, and outer layer is molten
The inside of agent application block is installed with outer layer dimethylformamide area, and the side in outer layer dimethylformamide area is installed with outside
Floor 1-methyl-2-pyrrolidinone area, electrode outer layer carrier are internally provided with active hole.
Electrode inner layer carrier is fixedly connected with electrode outer layer carrier, and the outer surface of electrode inner layer carrier is equipped with internal layer aluminum
Thin slice, the lower end of internal layer aluminum sheet is installed with internal layer active material area, and the lower end in internal layer active material area is equipped with interior
Floor conductive agent area, and the inside in inner layer conductive agent area is installed with internal layer acetylene black area, the side of internal layer acetylene black area is equipped with
Internal layer graphite area, and internal layer graphite area is fixedly connected with internal layer acetylene black area, the lower end in inner layer conductive agent area is bonded equipped with internal layer
Agent area, and the inside of internal layer adhesive area is installed with internal layer polytetrafluoroethylene (PTFE) area, the lower end of the internal layer adhesive area is consolidated
Dingan County is equipped with internal layer solvent application block, and the inside of internal layer solvent application block is installed with internal layer dimethylformamide area, described
The side in internal layer dimethylformamide area is equipped with internal layer 1-methyl-2-pyrrolidinone area.
Preferably, the side in the outer layer polytetrafluoroethylene (PTFE) area is equipped with outer layer Kynoar area, and outer layer polyvinylidene fluoride
Alkene area is fixedly connected with outer layer polytetrafluoroethylene (PTFE) area.
Preferably, the outer surface of the electrode outer layer carrier is equipped with corrosion-inhibiting coating, and corrosion-inhibiting coating and electrode outer layer carrier
It is fixedly connected.
Preferably, the side in the internal layer polytetrafluoroethylene (PTFE) area is equipped with internal layer Kynoar area, and internal layer polyvinylidene fluoride
Alkene area is fixedly connected with internal layer polytetrafluoroethylene (PTFE) area.
Preferably, the outer layer aluminum sheet is fixedly connected with electrode outer layer carrier.
Preferably, the outer layer graphite area is fixedly connected with outer layer acetylene black area.
Preferably, the internal layer aluminum sheet is fixedly connected with electrode inner layer carrier.
Preferably, the internal layer adhesive area is fixedly connected with inner layer conductive agent area.
Preferably, the inner layer conductive agent area is fixedly connected with internal layer active material area.
Preferably, the internal layer 1-methyl-2-pyrrolidinone area is fixedly connected with internal layer dimethylformamide area.
The utility model provides a kind of lithium ion battery two-layer compound iron phosphate lithium electrode, possesses following
Beneficial effect：
(1), lithium ion battery two-layer compound iron phosphate lithium electrode, by setting electrode outer layer carrier and electrode inner layer
Two carriers of carrier, two carriers have different property, can be complementary to one another, to play coordinative role.
(2), lithium ion battery two-layer compound iron phosphate lithium electrode, by being carried toward electrode outer layer carrier and electrode inner layer
The inside of body sets active hole, and active hole can greatly increase the effective area of electrode outer layer carrier and electrode inner layer carrier, make
The lithium ion that it is embedded in is more, has the capacitance of bigger.
(3), lithium ion battery two-layer compound iron phosphate lithium electrode, by setting outer layer aluminum sheet and internal layer aluminum
Thin slice can form one layer of protective oxide layer, can prevent electrode from some unrelated reactions occur.
(4), lithium ion battery two-layer compound iron phosphate lithium electrode, is divided into several areas, each area has by electrode
There is the required different material of the electrode, play respective effect in the electrodes, be difficult to happen side reaction between each other, make electricity
Pond performance is more preferably.
Brief description of the drawings
Fig. 1 is the utility model structural upright schematic diagram；
Fig. 2 is the utility model texture edge figure；
Fig. 3 is the utility model electrode outer layer carrier view.
In figure：1 electrode outer layer carrier, 2 outer layer aluminum sheets, 3 outer layer active material areas, 4 outer layer conductive agent areas, 5 outer layers
Acetylene black area, 6 outer layer graphite areas, 7 outer layer adhesive areas, 8 outer layer polytetrafluoroethylene (PTFE) areas, 9 outer layer Kynoar areas, 10 outer layers
Solvent application block, 11 outer layer dimethylformamide areas, 12 outer layer 1-methyl-2-pyrrolidinone areas, 13 corrosion-inhibiting coatings, 14 active holes, 15 electricity
Pole internal layer carrier, 16 internal layer aluminum sheets, 17 internal layer active material areas, 18 inner layer conductive agent areas, 19 internal layer acetylene black areas, in 20
Floor graphite area, 21 internal layer adhesive areas, 22 internal layer polytetrafluoroethylene (PTFE) areas, 23 internal layer Kynoar areas, 24 internal layer solvent applications
Block, 25 internal layer dimethylformamide areas, 26 internal layer 1-methyl-2-pyrrolidinone areas.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained, shall fall within the protection scope of the present invention.
- 3 are please referred to Fig.1, the utility model provides a kind of technical solution：A kind of lithium ion battery two-layer compound ferric phosphate
Lithium electrode, including electrode outer layer carrier 1 and electrode inner layer carrier 15, the outer surface of electrode outer layer carrier 1 are thin equipped with outer layer aluminum
Piece 2, the lower end of outer layer aluminum sheet 2 is installed with outer layer active material area 3, and the lower end in outer layer active material area 3 is fixed
Outer layer conductive agent area 4 is installed, the inside in outer layer conductive agent area 4 is installed with outer layer acetylene black area 5, outer layer acetylene black area 5
Side be equipped with outer layer graphite area 6, the lower end in outer layer conductive agent area 4 is installed with outer layer adhesive area 7, and outer layer adhesive
The inside in area 7 is installed with outer layer polytetrafluoroethylene (PTFE) area 8, and the lower end of outer layer adhesive area 7 is equipped with outer layer solvent application block 10,
And outer layer solvent application block 10 is fixedly connected with outer layer adhesive area 7, the inside of outer layer solvent application block 10 is installed with outside
Floor dimethylformamide area 11, and the side in outer layer dimethylformamide area 11 is installed with outer layer 1-methyl-2-pyrrolidinone area 12,
Electrode outer layer carrier 1 is equipped with active hole 14；Electrode inner layer carrier 15 is fixedly connected with electrode outer layer carrier 1, and electrode inner layer
The outer surface of carrier 15 is equipped with internal layer aluminum sheet 16, and the lower end of internal layer aluminum sheet 16 is installed with internal layer active material area
17, and the lower end in internal layer active material area 17 is equipped with inner layer conductive agent area 18, and the inside in inner layer conductive agent area 18 is fixedly mounted
There is internal layer acetylene black area 19, the side of internal layer acetylene black area 19 is equipped with internal layer graphite area 20, and internal layer graphite area 20 and internal layer second
Acetylene black area 19 is fixedly connected, and the lower end in inner layer conductive agent area 18 is equipped with internal layer adhesive area 21, and internal layer adhesive area 21 is interior
Portion is installed with internal layer polytetrafluoroethylene (PTFE) area 22, and the lower end of internal layer adhesive area 21 is installed with internal layer solvent application block
24, and the inside of internal layer solvent application block 24 is installed with internal layer dimethylformamide area 25, internal layer dimethylformamide area 25
Side is equipped with internal layer 1-methyl-2-pyrrolidinone area 26.The side in outer layer polytetrafluoroethylene (PTFE) area 8 is equipped with outer layer Kynoar area 9,
And outer layer Kynoar area 9 is fixedly connected with outer layer polytetrafluoroethylene (PTFE) area 8.The outer surface of electrode outer layer carrier 1 is equipped with anti-corrosion
Coating 13, and corrosion-inhibiting coating 13 is fixedly connected with electrode outer layer carrier 1.The side in internal layer polytetrafluoroethylene (PTFE) area 22 is equipped with interior strata
Vinylidene area 23, and internal layer Kynoar area 23 is fixedly connected with internal layer polytetrafluoroethylene (PTFE) area 22.
Outer layer aluminum sheet 2 is fixedly connected with electrode outer layer carrier 1.
Outer layer graphite area 6 is fixedly connected with outer layer acetylene black area 5.
Internal layer aluminum sheet 16 is fixedly connected with electrode inner layer carrier 15.
Internal layer adhesive area 21 is fixedly connected with inner layer conductive agent area 18.
Inner layer conductive agent area 18 is fixedly connected with internal layer active material area 17.
Internal layer 1-methyl-2-pyrrolidinone area 26 is fixedly connected with internal layer dimethylformamide area 25, the internal layer N- methylpyrroles
Alkanone area 26 is fixedly connected with internal layer dimethylformamide area 25.
The lithium ion battery is lived with two-layer compound iron phosphate lithium electrode by the outer layer toward the outer surface of electrode outer layer carrier 1
Application LiFePO4 in property material area 3, provides moveable lithium ion for the charge and discharge process of lithium ion battery, makes it at two
Round-trip insertion and deintercalation between electrode, can make the lithium by being arranged on the corrosion-inhibiting coating 13 of outer surface of electrode outer layer carrier 1
Ion battery is not easy to be corroded when chemically reacting, and can strengthen its service life, by 1 He of electrode outer layer carrier
Electrode inner layer carrier 15 is internally provided with active hole 14 and can greatly increase the effective of pole outer layer carrier 1 and electrode inner layer carrier 15
Area, makes its lithium ion being embedded in can be more, by increasing capacitance it is possible to increase the capacitance of battery, it is outer in outer layer conductive agent area 4 by setting
Floor acetylene black area 5 and a certain amount of acetylene black of 6 application of outer layer graphite area and two conductive agents of graphite, pass through past outer layer adhesive area
Two adhesives of application polytetrafluoroethylene (PTFE) and Kynoar on 7.
The lithium ion battery two-layer compound iron phosphate lithium electrode is by setting electrode outer layer carrier 1 and electrode inner layer carrier
15 two carriers, two carriers have different property, can be complementary to one another, to play coordinative role.
The lithium ion battery is with two-layer compound iron phosphate lithium electrode by carrying 1 body and electrode inner layer carrier 15 toward electrode outer layer
Inside active hole 14 is set, active hole 14 can greatly increase the effective area of electrode outer layer carrier and electrode inner layer carrier,
Make the lithium ion that it is embedded in more, there is the capacitance of bigger.
The lithium ion battery two-layer compound iron phosphate lithium electrode is by setting outer layer aluminum sheet 2 and internal layer aluminum sheet
16 can form one layer of protective oxide layer, can prevent electrode from some unrelated reactions occur.
Electrode is divided into several areas by the lithium ion battery with two-layer compound iron phosphate lithium electrode, and each area has the electricity
Extremely required different material, plays respective effect, is difficult to happen side reaction between each other, make battery performance in the electrodes
More preferably.
The two-layer compound iron phosphate lithium electrode lithium ion battery battery capacity comparison table of different structure
While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from the principle of the utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (10)
1. a kind of lithium ion battery two-layer compound iron phosphate lithium electrode, including electrode outer layer carrier (1) and electrode inner layer carrier
(15), it is characterised in that：The outer surface of the electrode outer layer carrier (1) is equipped with outer layer aluminum sheet (2), outer layer aluminum sheet
(2) lower end is installed with outer layer active material area (3), and outer layer active material area (3) lower end is installed with outer layer conduction
Agent area (4), outer layer conductive agent area (4) is internal to be installed with outer layer acetylene black area (5), and the side of outer layer acetylene black area (5) is set
There is outer layer graphite area (6)；The lower end of the outer layer conductive agent area (4) is installed with outer layer adhesive area (7), outer layer adhesive
The inside in area (7) is installed with outer layer polytetrafluoroethylene (PTFE) area (8), and outer layer adhesive area (7) lower end is fixedly connected with outer
Layer solvent application block (10), the inside of outer layer solvent application block (10) is installed with outer layer dimethylformamide area (11), outer layer
The side in dimethylformamide area (11) is installed with outer layer 1-methyl-2-pyrrolidinone area (12)；The electrode outer layer carrier (1)
Be internally provided with active hole (14)；
The electrode inner layer carrier (15) is fixedly connected with electrode outer layer carrier (1), and the outer surface of electrode inner layer carrier (15)
Equipped with internal layer aluminum sheet (16), internal layer aluminum sheet (16) lower end is installed with internal layer active material area (17), and internal layer is lived
Property material area (17) lower end be equipped with inner layer conductive agent area (18), is installed with internal layer acetylene black inside inner layer conductive agent area (18)
Area (19), the side of internal layer acetylene black area (19) are fixedly connected with internal layer graphite area (20)；Under the inner layer conductive agent area (18)
End is equipped with internal layer adhesive area (21), and internal layer polytetrafluoroethylene (PTFE) area (22), institute are installed with inside internal layer adhesive area (21)
State internal layer adhesive area (21) lower end and be installed with internal layer solvent application block (24), and it is solid inside internal layer solvent application block (24)
Dingan County is equipped with internal layer dimethylformamide area (25), and the side in internal layer dimethylformamide area (25) is equipped with internal layer 1-methyl-2-pyrrolidinone
Area (26).
A kind of 2. lithium ion battery two-layer compound iron phosphate lithium electrode according to claim 1, it is characterised in that：It is described
The side in outer layer polytetrafluoroethylene (PTFE) area (8) is fixedly connected with outer layer Kynoar area (9).
A kind of 3. lithium ion battery two-layer compound iron phosphate lithium electrode according to claim 1, it is characterised in that：It is described
The outer surface of electrode outer layer carrier (1) is fixedly connected with corrosion-inhibiting coating (13).
A kind of 4. lithium ion battery two-layer compound iron phosphate lithium electrode according to claim 1, it is characterised in that：It is described
The side in internal layer polytetrafluoroethylene (PTFE) area (22) is fixedly connected with internal layer Kynoar area (23).
A kind of 5. lithium ion battery two-layer compound iron phosphate lithium electrode according to claim 1, it is characterised in that：It is described
Outer layer aluminum sheet (2) is fixedly connected with electrode outer layer carrier (1).
A kind of 6. lithium ion battery two-layer compound iron phosphate lithium electrode according to claim 1, it is characterised in that：It is described
Outer layer graphite area (6) is fixedly connected with outer layer acetylene black area (5).
A kind of 7. lithium ion battery two-layer compound iron phosphate lithium electrode according to claim 1, it is characterised in that：It is described
Internal layer aluminum sheet (16) is fixedly connected with electrode inner layer carrier (15).
A kind of 8. lithium ion battery two-layer compound iron phosphate lithium electrode according to claim 1, it is characterised in that：It is described
Internal layer adhesive area (21) is fixedly connected with inner layer conductive agent area (18).
A kind of 9. lithium ion battery two-layer compound iron phosphate lithium electrode according to claim 1, it is characterised in that：It is described
Inner layer conductive agent area (18) is fixedly connected with internal layer active material area (17).
A kind of 10. lithium ion battery two-layer compound iron phosphate lithium electrode according to claim 1, it is characterised in that：Institute
Internal layer 1-methyl-2-pyrrolidinone area (26) is stated to be fixedly connected with internal layer dimethylformamide area (25).
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| CN201721296383.7U CN207282618U (en) | 2017-10-10 | 2017-10-10 | A kind of lithium ion battery two-layer compound iron phosphate lithium electrode |
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| CN201721296383.7U CN207282618U (en) | 2017-10-10 | 2017-10-10 | A kind of lithium ion battery two-layer compound iron phosphate lithium electrode |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107732153A (en) * | 2017-10-10 | 2018-02-23 | 江西创迪科技有限公司 | A kind of lithium ion battery two-layer compound iron phosphate lithium electrode |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107732153A (en) * | 2017-10-10 | 2018-02-23 | 江西创迪科技有限公司 | A kind of lithium ion battery two-layer compound iron phosphate lithium electrode |
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