CN106876169A - A kind of lithium ion super capacitor core arrangement - Google Patents
A kind of lithium ion super capacitor core arrangement Download PDFInfo
- Publication number
- CN106876169A CN106876169A CN201510927481.5A CN201510927481A CN106876169A CN 106876169 A CN106876169 A CN 106876169A CN 201510927481 A CN201510927481 A CN 201510927481A CN 106876169 A CN106876169 A CN 106876169A
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- China
- Prior art keywords
- positive pole
- side edge
- lithium ion
- pole
- super capacitor
- 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.)
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 33
- 239000003990 capacitor Substances 0.000 title claims abstract description 23
- 230000004888 barrier function Effects 0.000 claims abstract description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 9
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 5
- 229910052744 lithium Inorganic materials 0.000 claims description 5
- 239000011149 active material Substances 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- 239000011258 core-shell material Substances 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 229910052718 tin Inorganic materials 0.000 claims description 2
- 239000011135 tin Substances 0.000 claims description 2
- 239000007774 positive electrode material Substances 0.000 claims 1
- 238000003475 lamination Methods 0.000 abstract description 4
- 238000004804 winding Methods 0.000 abstract description 2
- 239000010408 film Substances 0.000 description 18
- 239000011267 electrode slurry Substances 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000006258 conductive agent Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000001291 vacuum drying Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001290 LiPF6 Inorganic materials 0.000 description 1
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- SIXOAUAWLZKQKX-UHFFFAOYSA-N carbonic acid;prop-1-ene Chemical compound CC=C.OC(O)=O SIXOAUAWLZKQKX-UHFFFAOYSA-N 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000012983 electrochemical energy storage Methods 0.000 description 1
- 238000004146 energy storage Methods 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
- QUSNBJAOOMFDIB-UHFFFAOYSA-O ethylaminium Chemical compound CC[NH3+] QUSNBJAOOMFDIB-UHFFFAOYSA-O 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000011257 shell material Substances 0.000 description 1
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 1
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/04—Hybrid capacitors
- H01G11/06—Hybrid capacitors with one of the electrodes allowing ions to be reversibly doped thereinto, e.g. lithium ion capacitors [LIC]
-
- 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
- Y02E60/13—Energy storage using capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
Abstract
The present invention relates to a kind of lithium ion super capacitor core arrangement, including negative pole, barrier film, the positive pole of more than 2, wherein positive pole and negative pole are fitted together according to the mode of half half lamination of winding, are obtained containing more than 3 half coiled lithium ion supercapacitor structures of positive pole.The present invention assembles positive pole, negative pole, barrier film by the frame mode that half lamination half winds, and can not only reduce the internal resistance of battery, and can be using higher, the positive pole of pliability difference, so that lithium ion super capacitor has energy density higher.
Description
Technical field
The present invention relates to a kind of electrochemical energy storage device, a kind of lithium ion super capacitor knot is related particularly to
Structure.
Background technology
Lithium ion super capacitor as ultracapacitor a type, while having ultracapacitor and lithium
The advantage of ion battery, not only high power density, security is good, and cyclical stability is high, and with certain
Energy density, the low advantage of self discharge.It is that a class is led in mobile communication, startup power supply, stand-by power supply etc.
There is more preferable application prospect energy storage device in domain.
Lithium-ion capacitor includes the parts such as positive pole, negative pole, barrier film, electrolyte and shell.Typically
Using two kinds of assembling modes.1st, takeup type.Positive pole, negative pole, barrier film are respectively only a piece of, and be parallel to each other weight
Poststack, according to a direction (as clockwise) be wound into it is cylindric or, flat column structure.This knot
The compact conformation of the battery of structure, internal resistance is low, and cell power density is high, but the counter electrode of battery of this structure
Homogeneity and flexibility requirements are very high.And the pliability and homogeneity of the electrode of load amount actually high, from work
For in skill, it is extremely difficult to require.2nd, it is stacked.Positive pole, negative pole have many pieces, every layer of structure
In respectively have a piece of positive pole, negative pole.Barrier film can be overall a piece of, or a piece of per Rotating fields.By every layer
Being repetitively folded for structure, constitutes a flexible-packed battery.Homogeneity of this structure to electrode, it is desirable to relatively low,
Because can be by selecting more uniform electrode come assembled battery, while the pliability no requirement (NR) to electrode, can
With the electrode measured using sufficiently high load, but a disadvantage is that, electrode structure is not tight, and the internal resistance of cell is higher.
To sum up there is merits and demerits in the battery structure of two ways.
The content of the invention
Present invention aim at a kind of new lithium ion super capacitor battery assembling mode is proposed, on overcoming
State two kinds of shortcomings of assembling mode.
To reach this purpose, the present invention intends taking following technical scheme：
The present invention provides a kind of lithium ion super capacitor core arrangement, including negative pole, barrier film, more than 2
Positive pole, it carries out assembling acquisition by following placement process,
1) by the barrier film of horizontal positioned, first time 180 degree is folded to form be superimposed with each other symmetrical from right to left
Upper and lower two part, negative pole is placed between two parts up and down of doubling；
2) first piece positive pole is placed in the upper surface of upper portion septum, and the right side edge of first piece positive pole with
The right side edge alignment of upper portion septum；
The negative pole of barrier film and its inside is carried out to the right second 180 along the left side edge of first piece positive pole again
Degree is folded, and the surface of upper portion septum is brought into close contact with first piece positive pole upper surface；1 positive pole of acquisition
Half coiled lithium ion supercapacitor structures；
3) second positive pole be placed in the upper surface of lower portion septum, and second left side edge of positive pole with
The left side edge alignment of lower portion septum；
The negative pole of barrier film and its inside is carried out into third time 180 to the left along second right side edge of positive pole again
Degree is folded, and the surface of lower portion septum is brought into close contact with second positive pole upper surface；2 positive poles of acquisition
Half coiled lithium ion supercapacitor structures；
4) just extremely more than 3 when, the positive pole of odd number piece is by step 2) process carry out operation placement,
The positive pole of even slice is by step 3) process carry out operation placement, that is, obtain containing more than 3 the half of positive pole
Coiled lithium ion supercapacitor structures.
The sheet-like anode of more than 2 is parallel to each other.
Step 2) in the right side edge of first piece positive pole alignd with the right side edge of upper portion septum, i.e., first
The right side edge of piece positive pole is in same perpendicular with the right side edge of upper portion septum.
Step 3) in and second left side edge of positive pole alignd with the left side edge of lower portion septum, i.e.,
Two left side edges of positive pole are in same perpendicular with the left side edge of lower portion septum.
The width of positive pole and negative pole fore-and-aft direction or above-below direction is respectively less than the width of barrier film above-below direction.
Positive pole and negative pole are laminated structure, and positive pole and negative pole both side surface are equipped with active material layer；Positive pole
Active material is activated carbon, and negative active core-shell material is that lithium titanate, graphite, silicon, tin etc. have Lithium-ion embeding
One kind or two kinds of composition described above in the material of abjection ability.
Width of the width of negative pole left and right directions less than or equal to barrier film left and right directions.
Described both positive and negative polarity is will be living according to common process (be including but not limited to coated with, roll pressure, spraying)
Property material, conductive agent, adhesive are mixed with and form.The surface density of active material is：0.1-100mgcm-2,
Wherein preferably it is 1-30mgcm-2, the surface density of activated carbon is：0.01-20mgcm-2, wherein more excellent
Be 0.1-10mgcm-2, the surface density of adhesive is 0.01-20mgcm-2, wherein being preferably
0.1-10mgcm-2。
Described barrier film can be polyethylene diagrams, polypropylene diaphragm, polyethylene, polypropylene composite materials barrier film, fibre
The plain barrier film of dimension, glass fibre element barrier film, ceramic membrane etc..
Prior art is contrasted, beneficial outcomes of the invention are：The structure side that the present invention is wound by half lamination half
Formula assembling positive pole, negative pole, barrier film, can not only reduce the internal resistance of battery, and can use higher, pliability
Poor positive pole, so that lithium ion super capacitor has energy density higher.
Brief description of the drawings
Fig. 1 is the profile of lithium ion super capacitor assembling of the invention.
Wherein 1, positive pole；2nd, negative pole；3rd, barrier film.
Specific embodiment
Embodiment 1
The positive pole of lithium ion super capacitor is prepared as follows：First by activated carbon, conductive agent, carboxylic
Sodium carboxymethylcellulose pyce, butadiene-styrene rubber, according to 8.5：1：0.25：0.25 mass ratio is well mixed, and adds
A certain amount of deionized water, the solid content of electrode slurry is 30%, and well mixed electrode slurry is coated into aluminium
On paper tinsel collector, 50 degrees Celsius dry 12 hours, and vacuum drying is standby.
The positive pole of lithium ion super capacitor is prepared as follows：First by lithium titanate, conductive agent, gather
Vinylidene is according to 8：1：1 mass ratio is well mixed, and adds a certain amount of deionized water, electrode slurry
Solid content is 15%, and well mixed electrode slurry is coated in aluminum foil current collector, 70 degrees Celsius of drying
12 hours, vacuum drying was standby.
Solvent in the electrolyte that lithium ion super capacitor is used is propene carbonate and dimethyl carbonate
(volume ratio is 1：1), salt 1 is LiPF6, and the concentration of salt 1 is 1molL-1, and salt 2 is tetrafluoro boric acid four
Ethyl ammonium, the concentration of salt 2 is 1molL-1.
The positive pole and negative pole of lithium ion super capacitor are fitted together according to the mode of half half lamination of winding：
1) by the barrier film of horizontal positioned, first time 180 degree is folded to form be superimposed with each other symmetrical upper and lower from right to left
Two parts, negative pole is placed between two parts up and down of doubling, and 2) first piece positive pole is placed in upper portion septum
Upper surface, and the right side edge of first piece positive pole aligns with the right side edge of upper portion septum；Again will be every
The negative pole of film and its inside carries out to the right second 180 degree folding along the left side edge of first piece positive pole, and on
The surface of portion septum is brought into close contact with first piece positive pole upper surface；Obtain 1 half coiling lithium of positive pole from
Sub- supercapacitor structures；3) second positive pole be placed in the upper surface of lower portion septum, and second just
The left side edge of pole is alignd with the left side edge of lower portion septum；Again by the negative pole of barrier film and its inside along
Two right side edges of positive pole carry out third time 180 degree folding, and the surface of lower portion septum and second to the left
Piece positive pole upper surface is brought into close contact；Obtain 2 half coiled lithium ion supercapacitor structures of positive pole；4)
At just extremely more than 3, the positive pole of odd number piece is by step 2) process carry out operation placement, even number
The positive pole of piece is by step 3) process carry out operation placement, that is, obtain containing more than 3 half takeup types of positive poles
Lithium ion super capacitor structure.
By both positive and negative polarity assembled package it is good after, inject electrolyte, the mass ratio of filling electrolyte and activated carbon is 4：
1.Sealing.Battery is completed to prepare.
Claims (7)
1. a kind of lithium ion super capacitor core arrangement, including negative pole, barrier film, the positive pole of more than 2,
It is characterized in that：It carries out assembling acquisition by following placement process,
1) by the barrier film of horizontal positioned, first time 180 degree is folded to form be superimposed with each other symmetrical from right to left
Two part up and down, negative pole is placed between two parts up and down of doubling；
2) first piece positive pole is placed in the upper surface of upper portion septum, and first piece positive pole right side edge
Right side edge with upper portion septum is alignd；
The negative pole of barrier film and its inside is carried out to the right second along the left side edge of first piece positive pole again
180 degree is folded, and the surface of upper portion septum is brought into close contact with first piece positive pole upper surface；Obtain 1
Half coiled lithium ion supercapacitor structures of positive pole；
3) second positive pole is placed in the upper surface of lower portion septum, and second left side edge of positive pole
Left side edge with lower portion septum is alignd；
The negative pole of barrier film and its inside is carried out into third time to the left along second right side edge of positive pole again
180 degree is folded, and the surface of lower portion septum is brought into close contact with second positive pole upper surface；Obtain 2
Half coiled lithium ion supercapacitor structures of positive pole；
4) just extremely more than 3 when, the positive pole of odd number piece is by step 2) process carry out operation and put
Put, the positive pole of even slice is by step 3) process carry out operation placement, that is, obtain containing more than 3 just
Half coiled lithium ion supercapacitor structures of pole.
2. according to lithium ion super capacitor core arrangement described in claim 1, it is characterised in that：2
Sheet-like anode more than piece is parallel to each other.
3. according to lithium ion super capacitor core arrangement described in claim 1, it is characterised in that：Step
It is rapid 2) in the right side edge of first piece positive pole alignd with the right side edge of upper portion septum, i.e., first piece is being just
The right side edge of pole is in same perpendicular with the right side edge of upper portion septum.
4. according to lithium ion super capacitor core arrangement described in claim 1, it is characterised in that：Step
It is rapid 3) in and second left side edge of positive pole alignd with the left side edge of lower portion septum, i.e., second
The left side edge of positive pole is in same perpendicular with the left side edge of lower portion septum.
5. according to lithium ion super capacitor core arrangement described in claim 1, it is characterised in that：Just
The width of pole and negative pole fore-and-aft direction or above-below direction is respectively less than the width of barrier film above-below direction.
6. according to lithium ion super capacitor core arrangement described in claim 1, it is characterised in that：Just
Pole and negative pole are laminated structure, and positive pole and negative pole both side surface are equipped with active material layer；Positive-active
Material is activated carbon, and negative active core-shell material is lithium titanate, graphite, silicon, tin etc. de- with Lithium-ion embeding
One kind or two kinds of composition described above in the material of output capacity.
7. according to lithium ion super capacitor core arrangement described in claim 1, it is characterised in that：It is negative
Width of the width of ultra-Left right direction less than or equal to barrier film left and right directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510927481.5A CN106876169A (en) | 2015-12-13 | 2015-12-13 | A kind of lithium ion super capacitor core arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510927481.5A CN106876169A (en) | 2015-12-13 | 2015-12-13 | A kind of lithium ion super capacitor core arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106876169A true CN106876169A (en) | 2017-06-20 |
Family
ID=59178606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510927481.5A Pending CN106876169A (en) | 2015-12-13 | 2015-12-13 | A kind of lithium ion super capacitor core arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106876169A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101640286A (en) * | 2008-08-01 | 2010-02-03 | 上海比亚迪有限公司 | Core of spirally wound lithium battery and spirally wound lithium battery |
| CN102569901A (en) * | 2011-12-27 | 2012-07-11 | 华为技术有限公司 | lithium ion battery, lithium ion battery core and manufacturing method of lithium ion battery core |
| US20140272559A1 (en) * | 2013-03-14 | 2014-09-18 | Robert Bosch Gmbh | Electrochemical cell including a folded electrode, components thereof, battery including the electrochemical cell, and method of forming same |
| CN205177621U (en) * | 2015-12-13 | 2016-04-20 | 中国科学院大连化学物理研究所 | Lithium ion ultracapacitor system inner core structure |
-
2015
- 2015-12-13 CN CN201510927481.5A patent/CN106876169A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101640286A (en) * | 2008-08-01 | 2010-02-03 | 上海比亚迪有限公司 | Core of spirally wound lithium battery and spirally wound lithium battery |
| CN102569901A (en) * | 2011-12-27 | 2012-07-11 | 华为技术有限公司 | lithium ion battery, lithium ion battery core and manufacturing method of lithium ion battery core |
| US20140272559A1 (en) * | 2013-03-14 | 2014-09-18 | Robert Bosch Gmbh | Electrochemical cell including a folded electrode, components thereof, battery including the electrochemical cell, and method of forming same |
| CN205177621U (en) * | 2015-12-13 | 2016-04-20 | 中国科学院大连化学物理研究所 | Lithium ion ultracapacitor system inner core structure |
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Application publication date: 20170620 |