CN101425612A - Applying waste lithium ionic cell as super capacitor - Google Patents
Applying waste lithium ionic cell as super capacitor Download PDFInfo
- Publication number
- CN101425612A CN101425612A CNA2007101667258A CN200710166725A CN101425612A CN 101425612 A CN101425612 A CN 101425612A CN A2007101667258 A CNA2007101667258 A CN A2007101667258A CN 200710166725 A CN200710166725 A CN 200710166725A CN 101425612 A CN101425612 A CN 101425612A
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- lithium ion
- ion battery
- waste
- old lithium
- super capacitor
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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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- 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
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Because the residual capacity, and the constant voltage/constant/power and heavy current charge-discharge cycle performance of a wasted lithium ion battery are equal to those of a super capacitor, the wasted lithium ion battery can be used as a super capacitor of a combined system of a battery and a super capacitor of an electric vehicle when heavy current and heavy power are output.
Description
Technical field
The invention belongs to field of chemical power source, is the cross-synthesis of lithium ion battery and electric chemical super capacitor, and electric chemical super capacitor is usually used in the assembly power power-supply system of motor vehicle.
Background technology
The lithium ion battery that mobile phone etc. use is popularized, and waste and old lithium ion battery has caused environmental issue.Motor vehicle still solves by the combined system of battery and ultracapacitor at high-power output facet.Although the residual capacity of waste and old lithium ion battery is lower than its rated capacity, thereby pass into disuse, but the residual capacity of waste and old lithium ion battery is still than the capacity height of electric chemical super capacitor, cyclicity and ultracapacitor are suitable, waste and old lithium ion battery can be used as ultracapacitor and uses, and has so not only reduced environmental pressure but also has saved social investment and resource.
Summary of the invention
The present invention replaces electric chemical super capacitor to be used for the battery-super capacitor combined dynamic system of motor vehicle with waste and old lithium ion battery.
Description of drawings
With blue electrical testing system instrument at room temperature, two old lithium ion batteries are discharged and recharged experiment, the performance difference of these two old lithium ion batteries:
The performance indications of two old lithium ion batteries of table 1
1.1 the little electric current of waste and old lithium ion battery discharges and recharges
Waste and old lithium ion battery 2 as can be seen from Figure 1
#After 15.9 hours, charging capacity is 638.8mAh at the 40mA constant current charge, and cut-ff voltage is 3.98V.Battery terminal voltage has bigger climbing at the charging initial time, and along with constantly the carrying out of charging process, battery terminal voltage tends to be steady gradually.
Fig. 2 is a waste and old lithium ion battery 2
#Operating voltage under 10mA constant-current discharge situation changes.Divide 3 sections: in the discharge starting stage, battery operated voltage slowly descends, and then enters the meadow, and when the approaching termination of discharge, battery operated voltage begins rapid decline again, and fall off rate rises rapidly.
Because at first be the electrode material surface charging during lithium ion cell charging, in this process, cell voltage increases very fast, is the inner removal lithium embedded of electrode material then, and in this process, cell voltage almost is a platform, and the voltage increase is slower.Also at first be the electrode material surface discharge during discharge, owing to the inner removal lithium embedded of electrode material, the lotus of discharging in the surface is replenished by internal charge in this process, overall result is that surface charge is constant, internal charge reduces, and cell voltage almost is a platform, and voltage descends slower; Electrode material surface began discharge after internal charge had been put, and in this process, cell voltage descends very fast; Lithium ion battery is the comprehensive of electrochemical capacitance and battery in essence thus, is the performance characteristic of battery as the curve platform section of Fig. 1 and Fig. 2, and the initial segment of Fig. 1 and the ending segment of Fig. 2 are the performances of electric capacity.
1.2 waste and old lithium ion battery high current charge-discharge
Waste and old lithium ion battery 2 as can be seen from Figure 3
#After having filled 1.87 hours under the 250mA continuous current, charging capacity is 462.9mAh, and cut-ff voltage is 4.00V.Charging interval has reduced, and charging capacity has also reduced.And no matter be under charge condition, still under discharge scenario, all occurs rising apace or decline, and these characteristics of ultracapacitor just: Capacity Ratio is less, and the speed that discharges and recharges is fast.
1.3 the waste and old lithium ion battery high current charge-discharge repeatedly circulates
Know waste and old lithium ion battery 1 by Fig. 4
#The variation of voltage and linearly lifting of time in 400mA constant current charge-discharge process, the voltage of battery still is linear increase and reduction with discharging and recharging the time variation in 20 circulations, and this is that ultracapacitor typically discharges and recharges feature.
1.4 the permanent power discharge of waste and old lithium ion battery
Before carrying out permanent power discharge, earlier to battery 1
#Carry out constant current charge to voltage 4.15V, constant voltage charge 5h gets capacity 317.8mAh under this voltage, carries out the permanent power discharge of 821VmA in the case to voltage 2.5V, as Fig. 5 and Fig. 6.From Fig. 5 and Fig. 6, can know that lithium ion battery not only can high power discharge, and can repeatedly carry out high power discharge.
1.5 the charge/discharge capacity of battery is with the cycle-index situation of change
Fig. 7 is old lithium ion battery 2
#Circulation is 104 times under the 450mA constant current charge-discharge, and the charging capacity of battery and discharge capacity are with the situation of change of cycle-index, from Fig. 7, we as can be seen, along with the increase of cycle-index, charging capacity and discharge capacity rise sometimes, sometimes descend, but totally be the trend of rising.The good cycle of old lithium ion battery is described.Charging capacity rises, and is that circuit progressively activates in the material, and available electric activating material is more and more; It is because the accumulation of irreversibility that charging capacity descends.
Fig. 8 has provided waste and old lithium ion battery 2
#420 cycle efficieny performances under the 450mA constant current charge-discharge.Know that by Fig. 8 in 420 range of DOs, lithium ion battery remains 100% efficiency for charge-discharge, has efficiency for charge-discharge height, steady performance.
A bidirectional DC-DC converter is designed ultracapacitor is carried out assist control, connects ultracapacitor and main battery with it.Use brshless DC motor to drive the bicycle running, detect control ultracapacitor and main battery based on the DSP core control system, parameters such as the electric current of motor etc., voltage and temperature, producing square wave simultaneously comes brshless DC motor and converter are controlled, as Fig. 9.
This control system is applied to the power-supply management system of electric automobile, and it has 3 chief components: based on converter, the ultracapacitor of IGBT, main battery is based on the control system of DSP, electric drive system.
This system links together the ultracapacitor of electric automobile and main battery by a two-way DC/DC converter, comes to the traction electric machine supply power by frequency converter then.The DC/DC converter is realized two kinds of functions: ultracapacitor charging when ultracapacitor discharge and motor deceleration were braked when motor quickened to advance.And the running of whole system is to control by the drive controlling and current of electric, the isoparametric detection of voltage that realize motor based on the controller of TMS320LF2407DSP.
Claims (6)
1. the method that waste and old lithium ion battery utilizes again is characterized in that: with the ultracapacitor in the battery-super capacitor combined dynamic system of waste and old lithium ion battery replacement motor vehicle.
2. the method for utilizing again according to the waste and old lithium ion battery described in the claim 1, it is characterized in that: waste and old lithium ion battery does not need complex process.
3. the method for utilizing again according to the waste and old lithium ion battery described in the claim 1 is characterized in that: the battery-super capacitor combined dynamic system of the motor vehicle that replace does not need complicated the change.
4. the method for utilizing again according to the waste and old lithium ion battery described in the claim 1 is characterized in that: the two poles of the earth of directly the two poles of the earth of waste and old lithium ion battery being used as ultracapacitor connect, and are anodal corresponding anodal, the corresponding negative pole of negative pole.
5. the method for utilizing again according to the waste and old lithium ion battery described in the claim 1; it is characterized in that: parameters such as the protective circuit plate cut-ff voltage of waste and old lithium ion battery need to adjust, the battery-super capacitor combined dynamic system of the motor vehicle that the ultracapacitor that is replaced to adapt to constitutes.
6. the method for utilizing again according to the waste and old lithium ion battery described in the claim 1 is characterized in that: need equalizing circuit so that waste and old lithium ion battery carries out the battery-super capacitor combined dynamic system that the motor vehicle of the ultracapacitor formation that is replaced to adapt to is made up in connection in series-parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101667258A CN101425612A (en) | 2007-10-30 | 2007-10-30 | Applying waste lithium ionic cell as super capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101667258A CN101425612A (en) | 2007-10-30 | 2007-10-30 | Applying waste lithium ionic cell as super capacitor |
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| CN101425612A true CN101425612A (en) | 2009-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2007101667258A Pending CN101425612A (en) | 2007-10-30 | 2007-10-30 | Applying waste lithium ionic cell as super capacitor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8957623B2 (en) | 2011-03-16 | 2015-02-17 | Johnson Controls Technology Company | Systems and methods for controlling multiple storage devices |
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2007
- 2007-10-30 CN CNA2007101667258A patent/CN101425612A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8957623B2 (en) | 2011-03-16 | 2015-02-17 | Johnson Controls Technology Company | Systems and methods for controlling multiple storage devices |
| US9300018B2 (en) | 2011-03-16 | 2016-03-29 | Johnson Controls Technology Company | Energy source system having multiple energy storage devices |
| US9425492B2 (en) | 2011-03-16 | 2016-08-23 | Johnson Controls Technology Company | Energy source systems having devices with differential states of charge |
| US9819064B2 (en) | 2011-03-16 | 2017-11-14 | Johnson Control Technology Company | Systems and methods for overcharge protection and charge balance in combined energy source systems |
| US10158152B2 (en) | 2011-03-16 | 2018-12-18 | Johnson Controls Technology Company | Energy source system having multiple energy storage devices |
| US10290912B2 (en) | 2011-03-16 | 2019-05-14 | Johnson Controls Technology Company | Energy source devices and systems having a battery and an ultracapacitor |
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Open date: 20090506 |