CN106531447A - Square battery capacitor - Google Patents
Square battery capacitor Download PDFInfo
- Publication number
- CN106531447A CN106531447A CN201611257205.3A CN201611257205A CN106531447A CN 106531447 A CN106531447 A CN 106531447A CN 201611257205 A CN201611257205 A CN 201611257205A CN 106531447 A CN106531447 A CN 106531447A
- Authority
- CN
- China
- Prior art keywords
- rectangular cell
- cell capacitor
- pole
- liquid injection
- injection hole
- 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.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 71
- 238000002347 injection Methods 0.000 claims abstract description 34
- 239000007924 injection Substances 0.000 claims abstract description 34
- 239000003792 electrolyte Substances 0.000 claims abstract description 16
- 238000005260 corrosion Methods 0.000 claims abstract description 15
- 230000007797 corrosion Effects 0.000 claims abstract description 15
- 238000004804 winding Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 16
- 239000012528 membrane Substances 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 15
- 239000000178 monomer Substances 0.000 claims description 12
- 239000008358 core component Substances 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000011230 binding agent Substances 0.000 claims description 8
- 239000000565 sealant Substances 0.000 claims description 8
- 239000002002 slurry Substances 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 8
- 239000004743 Polypropylene Substances 0.000 claims description 7
- 238000002242 deionisation method Methods 0.000 claims description 7
- -1 polypropylene Polymers 0.000 claims description 7
- 229920001155 polypropylene Polymers 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 5
- 229910044991 metal oxide Inorganic materials 0.000 claims description 5
- 150000004706 metal oxides Chemical class 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 239000005030 aluminium foil Substances 0.000 claims description 4
- 239000011889 copper foil Substances 0.000 claims description 4
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 3
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 3
- 239000006230 acetylene black Substances 0.000 claims description 3
- 239000011149 active material Substances 0.000 claims description 3
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 3
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 3
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 3
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 238000003475 lamination Methods 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims description 2
- 235000007164 Oryza sativa Nutrition 0.000 claims description 2
- 239000008151 electrolyte solution Substances 0.000 claims description 2
- 150000002576 ketones Chemical class 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 229920000131 polyvinylidene Polymers 0.000 claims description 2
- 235000009566 rice Nutrition 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 6
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 6
- 238000004891 communication Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- SOZVEOGRIFZGRO-UHFFFAOYSA-N [Li].ClS(Cl)=O Chemical compound [Li].ClS(Cl)=O SOZVEOGRIFZGRO-UHFFFAOYSA-N 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- OXHNLMTVIGZXSG-UHFFFAOYSA-N 1-Methylpyrrole Chemical class CN1C=CC=C1 OXHNLMTVIGZXSG-UHFFFAOYSA-N 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000006399 behavior Effects 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 239000000306 component Substances 0.000 description 2
- 239000006258 conductive agent Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 229910001092 metal group alloy Inorganic materials 0.000 description 2
- 229910001228 Li[Ni1/3Co1/3Mn1/3]O2 (NCM 111) Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002388 carbon-based active material Substances 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000011257 shell material Substances 0.000 description 1
- 229910021384 soft carbon Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 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
- H01G11/08—Structural combinations, e.g. assembly or connection, of hybrid or EDL capacitors with other electric components, at least one hybrid or EDL capacitor being the main component
-
- 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
- H01G11/14—Arrangements or processes for adjusting or protecting hybrid or EDL capacitors
-
- 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
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
-
- 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
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/46—Metal oxides
-
- 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
- H01G11/54—Electrolytes
- H01G11/58—Liquid electrolytes
-
- 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
- H01G11/78—Cases; Housings; Encapsulations; Mountings
- H01G11/80—Gaskets; Sealings
-
- 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)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a square battery capacitor, comprising a square shell, wherein a seal assembly tolerating electrolyte corrosion is arranged at the top of the shell, a self-start explosion-proof relief valve is arranged at the bottom opening of the shell, an electrolyte and a core winding assembly put in the electrolyte are arranged in the shell, and an electrolyte injection hole is formed in the top or bottom of the shell; the square lithium ion battery capacitor has the energy density of a lithium ion battery and the power density of a super-capacitor, can be used separately or used with other battery, and has the characteristics of small size, high pulse, low self discharge and high reliability.
Description
Technical field
The invention belongs to ultracapacitor and lithium ion battery power technology field, more particularly to a kind of rectangular cell electric capacity
Device, is more particularly to applied to communicate and the rectangular cell capacitor in the intelligent meter of metering,
Background technology
Rectangular cell capacitor is a kind of new electric charge storage element, is the group of lithium ion battery and ultracapacitor
Close, " doulbe-sides' victory " coalition that to be power density got both with energy density, compared with ultracapacitor, the work of rectangular cell capacitor
Make voltage high, leak electricity little；Compared with battery, rectangular cell capacitor has that very high power density, charging rate are fast, uses
Life-span length and width temperature performance is superior etc..
Rectangular cell capacitor is mainly used in communication with metering intelligent meter as a kind of high impulse rectangular cell capacitor
In meter, intelligent transportation (such as ETC) is being realized especially, the traffic capacity of highway is being improved, in terms of saving capital cost and administration fee
It is made that, also achieve energy-saving and emission-reduction, low-carbon (LC) trip reduces environmental pollution.Additionally, rectangular cell capacitor is also
Can be widely applied to the meter system such as intellectual water meter, hotlist, gas meter, smart electric grid system, GPS/GSM/ARGOS related systems,
Radio-frequency recognition system, emergency equipments and Military Application, also can be combined dynamical system as electric automobile etc. with battery.
At present, usual below the 3V of normal working voltage of the ultracapacitor monomer in market, leakage current are bigger than normal, and communicate with
, in 2.0V～4.2V, small volume is lightweight, and leakage current is little, pulse behaviors for the intelligent meter rectangular cell condenser voltage of metering
High and capacity is high, and existing communication is mainly cylindrical capacitor, cylinder electricity with the intelligent meter rectangular cell capacitor of metering
Container occupancy volume is larger, low space utilization, it is impossible to meets and communicates and card form structure ultra-thin with measurement meter.
Existing ultracapacitor electrical property can not meet use requirement, and setting relief valve occupancy volume in top is larger, no
The requirement of small volume is used suitable for the intelligent meter back-up source of communication and metering.
In sum, the high rectangular cell capacitor of development small volume, lightweight, pulse behaviors and capacity is to solve communication
With the key of the intelligent meter power source design of metering.
The content of the invention
It is an object of the present invention to：The square electric of a kind of small volume, high impulse, low self-discharge, high reliability is provided
Pond capacitor.
It is that, up to this purpose, the present invention is employed the following technical solutions：
A kind of rectangular cell capacitor is provided, including the housing being square, at the top of the housing, electrolyte resistance is provided with
The black box of corrosion, is provided with self-opening type explosion-proof relief valve at the bottom opening of housing, the enclosure interior is provided with electrolysis
Liquid and the core component being placed in the electrolyte, the top or bottom of the housing are provided with injecting electrolytic solution hole.
Used as a kind of optimal technical scheme of described rectangular cell capacitor, the core component includes that a monomer is naked
Core, or the core component includes two and two or more is parallel to each other the naked core of monomer of welding.
As a kind of optimal technical scheme of described rectangular cell capacitor, the naked core of the monomer include negative electrode, every
From film and anode, the negative electrode, the isolating membrane and the anode combine to form the list in the way of lamination or winding
The naked core of body.
Used as a kind of optimal technical scheme of described rectangular cell capacitor, the isolating membrane adopts polypropylene-poly- second
Alkene-microporous polypropylene membrane or microporous polypropylene membrane..
Used as a kind of optimal technical scheme of described rectangular cell capacitor, the negative electrode adopts metal-oxide or many
One or more in metal-oxide are positive-active base material, by positive-active base material, electrically conductive graphite, superconduction acetylene black and poly-
Vinylidene binding agent mixes, and with N-Methyl pyrrolidone or deionization water as solvent, stirs into slurry, is coated on 10～20 micro-
Make on the aluminium foil of rice.
Used as a kind of optimal technical scheme of described rectangular cell capacitor, the anode adopts carbons material for negative pole
Active material, by negative electrode active base material, carboxymethyl cellulose, the mixing of solubility butadiene-styrene rubber binding agent, with N- crassitudes
Ketone or deionization water as solvent, stir into slurry, are coated on 8～15 microns of Copper Foil and make.
Used as a kind of optimal technical scheme of described rectangular cell capacitor, the black box includes cover plate, described
It is provided with cover plate for installing the pole installing hole of pole, in the pole installing hole, is provided with pole, the pole and institute
Corrosion-resistant fluid sealant is provided with stating the pole installing hole between cover plate, the pole is formed at two ends after punching press and used
In fixed lug and the boss of pressure ring.
Used as a kind of preferred technical scheme, the corrosion-resistant fluid sealant is integrally machined using Shooting Technique with the cover plate
Molding.
Used as a kind of optimal technical scheme of described rectangular cell capacitor, the pole two ends are respectively arranged with top cover
And pad, upper press ring is arranged with the pole between the top cover and the cover plate.
As a kind of optimal technical scheme of described rectangular cell capacitor, also include the liquid injection hole for fluid injection, institute
The bottom that liquid injection hole is arranged on the cover plate or is arranged on the housing is stated, liquid injection hole sealing at the liquid injection hole, is provided with
Part.
As a kind of optimal technical scheme of described rectangular cell capacitor, also include for sealing the liquid injection hole
Liquid injection hole sealing member, the liquid injection hole sealing member are the steel nail being engaged with the liquid injection hole, or, the liquid injection hole sealing member is
The steel ball being engaged with the liquid injection hole
Used as a kind of optimal technical scheme of described rectangular cell capacitor, the housing is using metallic aluminium, carbon steel, no
Rust steel, corrosion resistant metal or many metal alloy materials are made.
Beneficial effects of the present invention are：
(1) the invention provides a kind of communication rectangular cell capacitor special with the intelligent meter of metering, its top is provided with
Electrolyte resistance corrodes black box, and the square structure of bottom design self-opening type explosion-proof relief valve square casing, the structure having set
Meter thickness can be in below 6mm, compared with the column structure of same size, and device space volume declines more than 34%.
(2) present invention adopts the modes such as Laser Welding, argon arc welding by the square cover plate perimeter and lug, shell of black box
Carry out hermetically sealed；Meanwhile, the pole of black box and anode ear are coupled together by riveting method, improve rectangular cell electric capacity
The safety and reliability of device, it is ensured that capacitor will not be caused due to lug burn into leakage during discharge and recharge or long-term storage
Voltage declines, internal resistance increase and capacity are reduced, the structure design service life having more than 10 years.
(3) present invention carries out appropriate proportioning by the selection of positive electrode, negative material, additive and electrolyte, made
, between 2.5V-4.2V, leakage current (self-discharge rate) is extremely low for the rectangular cell condenser voltage scope for obtaining, and pulse current is high, its
Normally use temperature range be -40 DEG C～+85 DEG C, wide temperature and low self-discharge rate effectively enhance its practicality.
(4) a kind of rectangular cell capacitor that the present invention is provided can single or multiple series/parallels use, also can be with other electricity
Source is provided with the unilateral diode of counnter attack charging, power source combination unit tool with the use of power source combination unit is formed in grouping circuits
There are very high power density and energy density, further expand the use field of rectangular cell capacitor.
(5) rectangular cell capacitor of the present invention can not only meet onboard system communication and the intelligent meter of metering, can also apply
In fields such as intelligent gas meter, intellectual water meter, field trackings.
Description of the drawings
The present invention is described in further detail below according to drawings and Examples.
Fig. 1 is rectangular cell capacitor schematic top plan view of the present invention.
Fig. 2 is A-A in Fig. 1 to sectional view.
Fig. 3 is black box close-up schematic view of the present invention.
Fig. 4 is rectangular cell capacitor elevational schematic view of the present invention.
Fig. 5 is the charging and discharging curve schematic diagram of rectangular cell capacitor of the present invention.
Fig. 6 is the charge graph that rectangular cell capacitor of the present invention is combined with lithium thionyl chloride cell.
Fig. 7 is another structural profile schematic diagram of rectangular cell capacitor of the present invention.
Fig. 8 is the another structural profile schematic diagram of rectangular cell capacitor of the present invention.
Fig. 9 is the another structural profile schematic diagram of rectangular cell capacitor of the present invention.
Figure 10 is another structural profile schematic diagram of rectangular cell capacitor of the present invention.
In figure：
1st, housing；2nd, black box；21st, cover plate；22nd, pole；23rd, corrosion-resistant fluid sealant；24th, top cover；25th, pad；26、
Upper press ring；3rd, explosion-proof relief valve；4th, core component；41st, negative electrode；42nd, isolating membrane；43rd, anode；44th, the first conducting element；45、
Second conducting element；5th, liquid injection hole；51st, liquid injection hole sealing member；6th, insulating counterdie.
Specific embodiment
For make present invention solves the technical problem that, the technical scheme that adopts and the technique effect that reaches it is clearer, below
Accompanying drawing will be combined to be described in further detail the technical scheme of the embodiment of the present invention, it is clear that described embodiment is only
It is a part of embodiment of the invention, rather than the embodiment of whole.Based on the embodiment in the present invention, those skilled in the art exist
The every other embodiment obtained under the premise of not making creative work, belongs to the scope of protection of the invention.
In describing the invention, unless otherwise clearly defined and limited, term " being connected ", " connection ", " fixation " is answered
It is interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or it is integral；Can be mechanically connected,
It can be electrical connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the company of two element internals
The interaction relationship of logical or two elements.For the ordinary skill in the art, can understand above-mentioned with concrete condition
Term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score
The first and second feature directly contacts can be included, it is also possible to be not directly contact including the first and second features but by it
Between other characterisation contact.And, fisrt feature second feature " on ", " top " and " above " it is special including first
Levy directly over second feature and oblique upper, or fisrt feature level height is merely representative of higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " below ", or be merely representative of immediately below second feature and obliquely downward including fisrt feature
Fisrt feature level height is less than second feature.
A kind of rectangular cell capacitor of the present invention, including the housing being square, the top of the housing has top
Portion's opening, bottom have bottom opening, and the top open part is provided with the black box of electrolyte resistance corrosion, at bottom opening
Self-opening type explosion-proof relief valve is provided with, the enclosure interior is provided with electrolyte and the core group being placed in the electrolyte
Part.The rectangular lithium ion battery capacitor has the energy density of lithium ion battery, it may have the power of ultracapacitor is close
Degree, can be used alone, and also can use with other power source combinations.
Embodiment one：
As shown in figs. 1 to 6, in the present embodiment, a kind of rectangular cell capacitor of the present invention, including what is be square
Housing 1, the top of the housing 1 have open top, and bottom has bottom opening, and the top open part is provided with resistance to electrolysis
The black box 2 of corrosion, is provided with self-opening type explosion-proof relief valve 3 at bottom opening, the housing 1 is internally provided with electrolyte
And the core component 4 being placed in the electrolyte.
The housing 1 is made using metallic aluminium, carbon steel, rustless steel, corrosion resistant metal or many metal alloy materials.
Specifically, it is provided with the first conducting element 44 and the second conducting element 45 on the core component 4, described first
Conducting element 44 is electrically connected with the black box 2, and second conducting element 45 is electrically connected with the housing 1.The housing 1
Bottom be provided with insulating counterdie 6.All portions of the black box 2 are welded to connect with the inwall of the housing 1, and described second leads
Electric device 45 is located between all portions of the black box 2 and the inwall of the housing 1, and the inwall welding with the housing 1 connects
Connect.
The core component 4 described in scheme of the present invention can be the naked core of monomer, or the core component 4
Be parallel to each other the naked core of monomer of welding including two and two or more.
Be described in detail by taking the naked core of monomer as an example below, the naked core of the monomer include negative electrode 41, isolating membrane 41 with
And anode 43, the negative electrode 41, the isolating membrane 41 and the anode 43 combine to form described in the way of lamination or winding
The naked core of monomer.The isolating membrane 41 can adopt polypropylene-polyethylene-microporous polypropylene membrane or microporous polypropylene membrane.This reality
Polypropylene-polyethylene-microporous polypropylene membrane is adopted specifically in applying example.
Negative electrode 41 described in the present embodiment adopts one or more in metal-oxide or poly-metal deoxide for positive pole
Active matrix, positive-active base material, electrically conductive graphite, superconduction acetylene black and Kynoar binding agent is mixed, with N- methyl pyrroles
Pyrrolidone or deionization water as solvent, stir into slurry, are coated on 10～20 microns of aluminium foil and make；The anode 43 is adopted
Carbons material is negative active core-shell material, and negative electrode active base material, carboxymethyl cellulose, solubility butadiene-styrene rubber binding agent are mixed,
With N-Methyl pyrrolidone or deionization water as solvent, slurry is stirred into, be coated on 8～15 microns of Copper Foil and make.
The black box 2 includes cover plate 21, is provided with and installs for the pole 22 for installing pole 22 on the cover plate 21
Hole, is provided with pole 22 in 22 installing hole of the pole, the pole 22 between the pole 22 and the cover plate 21 is installed
Corrosion-resistant fluid sealant 23 is provided with hole.
Used as a kind of preferred technical scheme, the corrosion-resistant fluid sealant 23 is with the cover plate 21 using Shooting Technique one
Machine-shaping.
Pole 22 described in the present embodiment is formed for fixing the boss of lug and pressure ring 26 at two ends after punching press.
More specifically, 22 structure in T shape of the pole in the present embodiment, with towards first inside housing 1
End and the second end towards outside batteries, the first end are provided with step surface, and the corrosion-resistant fluid sealant 23 exists
The inside of battery is extended between the step surface and the cover plate 21,22 two ends of the pole be respectively arranged with top cover 24 and
Pad 25, is arranged with upper press ring 26, the corrosion-resistant fluid sealant 23 on the pole 22 between the top cover 24 and the cover plate 21
Extend between upper press ring 26 and the cover plate 21 in the outside of battery.
Also include the liquid injection hole 5 for electrolyte being filled to the inside of housing 1, liquid injection hole 5 described in the present embodiment is arranged on
On the cover plate 21.
Certainly the set location of the liquid injection hole 5 is not limited to being arranged on cover plate 21 described in the present embodiment, such as schemes
7th, shown in 9,10, the liquid injection hole 5 can also be arranged on the bottom of the housing 1 in other embodiments.
Liquid injection hole sealing member 51 is provided with the liquid injection hole 5；Liquid injection hole sealing member described in the present embodiment 51 is sealing
Nail.
The seal form of liquid injection hole 5 is not limited to be sealed using sealing nail, as shown in Fig. 7,8,10, in other realities
Apply in example, can also be sealed in the form of ball sealer.
The present invention adopts the modes such as Laser Welding, argon arc welding by 21 periphery of square cover plate and lug, housing of black box 2
1 carry out it is hermetically sealed；Meanwhile, the pole 22 of black box 2 is coupled together with anode ear by riveting method, improve rectangular cell
The safety and reliability of capacitor, it is ensured that capacitor, will not be due to lug burn into leakage during discharge and recharge or long-term storage
Voltage is caused to decline, internal resistance increase and capacity are reduced, the structure design service life having more than 10 years
Rectangular cell capacitor described in the present embodiment carries out volume parameter with cylindrical battery capacitor and compares, as a result such as
Shown in table 1:
Table 1
As seen from the above table, rectangular cell capacitor spatial volume occupancy of the invention is less than cylinder battery capacitor.
As a kind of concrete preferred technical scheme, the rectangular cell capacitor described in the present embodiment, the sun of the capacitor
Pole 43 by 92% soft carbon active material, 4% super conductive agent, 1.5% binding agent, and 2.5% dispersant is uniform, with
Deionization water as solvent, stirs into slurry and is coated on 15 microns of Copper Foil and form；Negative electrode 41 by 89% LiNi1/3Co1/
3Mn1/3O2 active materials, 7% super conductive agent, 3.5% binding agent, and 0.5% oxalic acid mix homogeneously, with N- methylpyrroles
Alkanone makees solvent, stirs into slurry, is coated on 20 microns of aluminium foil and forms；Just, wind after having barrier film isolation in the middle of anode 43
Form core, positive and negative lug one end respectively with just, anode 43 be connected, the other end is drawn out to the positive and negative extreme of capacitor case
On；Capacitor stainless steel casing and top are connected with hot melt black box 2, and liquid injection hole 5 is located on square cover plate 21.It is obtained
Rectangular cell capacitor charging/discharging curve chart is as shown in Figure 5.
The rectangular cell capacitor processed using above-mentioned material and component is with existing lithium thionyl chloride cell and joint group
Conjunction forms set of cells, enterprising in maximum working voltage, rated capacity, operating temperature range, leakage current, pulse current and weight
Row contrast, as a result as shown in table 2：
Table 2
The SPC1520 rectangular cell capacitors processed by above-mentioned material and component, SPC1520 rectangular cell capacitors
Initial voltage is 3.64V, by the square battery capacitor and the fertile lithium-thionyl chloride of hundred million latitude lithium of existing battery product Huizhou
After battery ER14250 parallel combination set of cells, ER14250 is charged to SPC1520 rectangular cell capacitors, rectangular cell electricity
Condenser voltage reaches 3.66V in 12h, and charging balance needs 120h or so, SPC1520 rectangular cells condenser voltage after balance
It is consistent with lithium thionyl chloride cell ER14250, as a result as shown in Figure 6.
Draw in conjunction with the embodiments, the rectangular cell capacitor that the present invention is provided reduces spatial volume occupancy, its safety
Performance and electrical property can meet the requirement of communication and the intelligent meter field of metering.
Specifically, the unilateral diode of counnter attack charging is provided with grouping circuits, power source combination unit has very high work(
Rate density and energy density, further expand the use field of rectangular cell capacitor.
In the description of this specification, the description of reference term " embodiment ", " example " etc. means with reference to the embodiment
Or specific features, structure, material or the feature that example is described is contained at least one embodiment or example of the present invention.
In this specification, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.And, the tool of description
Body characteristicses, structure, material or feature can be combined in one or more any embodiment or example in an appropriate manner.
The know-why of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explain the present invention's
Principle, and limiting the scope of the invention can not be construed to by any way.Based on explanation herein, the technology of this area
Personnel associate other specific embodiments of the present invention by need not paying performing creative labour, these modes fall within
Within protection scope of the present invention.
Claims (10)
1. a kind of rectangular cell capacitor, it is characterised in that including the housing being square, resistance to electricity is provided with the top of the housing
The black box of solution corrosion, is provided with self-opening type explosion-proof relief valve at the bottom opening of housing, the enclosure interior is provided with
Electrolyte and the core component being placed in the electrolyte, the top or bottom of the housing are provided with injecting electrolytic solution hole.
2. rectangular cell capacitor according to claim 1, it is characterised in that the core component includes that a monomer is naked
Core, or the core component includes two and two or more is parallel to each other the naked core of monomer of welding.
3. rectangular cell capacitor according to claim 2, it is characterised in that the naked core of the monomer include negative electrode, every
From film and anode, the negative electrode, the isolating membrane and the anode combine to form the list in the way of lamination or winding
The naked core of body.
4. rectangular cell capacitor according to claim 3, it is characterised in that the isolating membrane adopts polypropylene-poly- second
Alkene-microporous polypropylene membrane or microporous polypropylene membrane.
5. rectangular cell capacitor according to claim 3, it is characterised in that the negative electrode adopts metal-oxide or many
One or more in metal-oxide are positive-active base material, by positive-active base material, electrically conductive graphite, superconduction acetylene black and poly-
Vinylidene binding agent mixes, and with N-Methyl pyrrolidone or deionization water as solvent, stirs into slurry, is coated on 10～20 micro-
Make on the aluminium foil of rice.
6. rectangular cell capacitor according to claim 3, it is characterised in that the anode adopts carbons material for negative pole
Active material, by negative electrode active base material, carboxymethyl cellulose, the mixing of solubility butadiene-styrene rubber binding agent, with N- crassitudes
Ketone or deionization water as solvent, stir into slurry, are coated on 8～15 microns of Copper Foil and make.
7. rectangular cell capacitor according to claim 1, it is characterised in that the black box includes cover plate, described
It is provided with cover plate for installing the pole installing hole of pole, in the pole installing hole, is provided with pole, the pole and institute
Corrosion-resistant fluid sealant is provided with stating the pole installing hole between cover plate, the pole is formed at two ends after punching press and used
In fixed lug and the boss of pressure ring.
8. rectangular cell capacitor according to claim 7, it is characterised in that the pole two ends are respectively arranged with top cover
And pad, upper press ring is arranged with the pole between the top cover and the cover plate.
9. rectangular cell capacitor according to claim 8, it is characterised in that also include the liquid injection hole for fluid injection, institute
The bottom that liquid injection hole is arranged on the cover plate or is arranged on the housing is stated, liquid injection hole sealing at the liquid injection hole, is provided with
Part.
10. rectangular cell capacitor according to claim 9, it is characterised in that also include for sealing the liquid injection hole
Liquid injection hole sealing member, the liquid injection hole sealing member is the steel nail being engaged with the liquid injection hole, or, the liquid injection hole sealing member
It is the steel ball being engaged with the liquid injection hole.
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| CN201611257205.3A CN106531447A (en) | 2016-12-30 | 2016-12-30 | Square battery capacitor |
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| CN201611257205.3A CN106531447A (en) | 2016-12-30 | 2016-12-30 | Square battery capacitor |
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| CN107732042A (en) * | 2017-09-26 | 2018-02-23 | 惠州市亿纬新能源研究院 | A kind of block and the lithium battery comprising the block |
| CN108088790A (en) * | 2017-11-07 | 2018-05-29 | 超威电源有限公司 | A kind of electrode column sealing glue electrochemical corrosion resistant strength test method and test device |
| CN108899200A (en) * | 2018-05-14 | 2018-11-27 | 广西睿奕新能源股份有限公司 | A kind of recombiner condenser, preparation method and application |
| CN112768246A (en) * | 2020-12-24 | 2021-05-07 | 深圳康诚达电子有限公司 | High-temperature-resistant electrolytic capacitor |
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Application publication date: 20170322 |