CN102496467A - Super capacitor monomer and super capacitor power system - Google Patents
Super capacitor monomer and super capacitor power system Download PDFInfo
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- CN102496467A CN102496467A CN2011103978690A CN201110397869A CN102496467A CN 102496467 A CN102496467 A CN 102496467A CN 2011103978690 A CN2011103978690 A CN 2011103978690A CN 201110397869 A CN201110397869 A CN 201110397869A CN 102496467 A CN102496467 A CN 102496467A
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Abstract
The invention provides a super capacitor monomer, which consists of a positive electrode, a negative electrode, a diaphragm, an organic electrolyte and a leading-out terminal. The super capacitor monomer is characterized in that: a solvent of the organic electrolyte comprises one or more of acetonitrile (CH3CN), propylene carbonate (PC) and gamma-butyrolactone (GBL); the solvent also comprises a high-temperature stabilizer, namely alpha-cyano-sulfolane; and a solute comprises one or more of tetraethyl ammonium tetrafluoroborate (Et4NBF4) and triethyl methyl ammonium tetrafluoroborate (Et3MeNBF4). The invention also provides a super capacitor power system, which is formed by connecting a plurality of super capacitor single bodies in series and in parallel. The super capacitor monomer and the super capacitor power system can be successfully applied to an elevator energy recovery system and a power loss protection system and can be used as standby power supplies. The characteristics of high charging speed, long cycle life, high specific power and high energy conversion efficiency of a super capacitor can be fully utilized, and the using work condition of an elevator can be met.
Description
Technical field
The present invention relates to the ultracapacitor technical field, the ultracapacitor power-supply system that particularly relates to a kind of ultracapacitor monomer and form by this ultracapacitor monomer.
Background technology
Along with the Chinese society rapid development of economy, China has become maximum in the world elevator producing country, exported country at present and has possessed state, and a collection of domestic enterprise has grown into most important in the world elevator manufacturer.China in 2010 arrives approximately more than 1,600,000 with the elevator up, and its quantity is also among continuous rapid growth, and the power consumption in 1 typical elevator every year is approximately about 15000kWh.In electricity consumption condition survey statistics to hotel, office building, private residence etc., about 30,000,000,000 degree of present national elevator year power consumption, power consumption accounts for more than 17%～25% of total electricity consumption, is only second to the idle call electric weight, is higher than the power consumption of illumination, water supply etc.And along with continuous expansion of modern production scale and people's living standard improve constantly, the electric energy imbalance between supply and demand becomes increasingly conspicuous, and the economize on electricity cry grows to even greater heights, and how to make a major challenge that the energy-saving and environment friendly elevator begins to become this industry.
Development elevator energy-saving technology has very important realistic meaning in China; Usually can run into working conditions such as many frequent start-stops, up-down, acceleration, deceleration in the use of elevator; When operating modes such as decline, deceleration; Tend to the lot of energy that is lost,, will practice thrift a considerable energy if these energy are recycled.Therefore elevator energy reclaims for the power consumption that reduces elevator has very big meaning.
The general technology of present energy-conserving elevator is that the potential energy when elevator is fallen reclaims and is converted into electric energy, feeds back to electrical network then.But this technology mainly contains two problems at present, the one, and the feedback electric energy belongs to pollution for electrical network, therefore be unwilling to accept, the 2nd, elevator customer is paid cost does not but have income, so marketing is very difficult.
In recent years; Also occurred the new technology that some elevator energies reclaim both at home and abroad, as in 2010 Chinese international elevator exhibitions, Mitsubishi Electric has put on display a kind of " blended electric power elevator "; It is with the feedback power storage in storage battery; Directly the power supply ladder uses again, and this blended electric power elevator device is compared with product in the past, can save energy about 20%.Be in the utility model patent of " 201020149696 " in the patent No. and for example, disclose a kind of new energy battery lift, adopting voltage is two or many in the storage battery of 48V, as electrical source of power and electrical storage device.Though these disclosed technology can reach the purpose of recovery section energy at present, are confined to the development of power technology, mostly employed electric power storage equipment is storage battery or lead-acid battery; Power characteristic is relatively poor; Recovery speed is slow, and the life-span is lower, discharges and recharges number of times usually and has only 1,2,000 time; The maintenance cost that this has increased elevator greatly is unfavorable for the large-scale promotion and the application of elevator energy recovery system.
And ultracapacitor is a kind of model electrochemical energy storage device between traditional capacitor and battery.Compare traditional capacitor, ultracapacitor has higher energy density; Compare battery, ultracapacitor has higher power density and better cycle life.Therefore, it has combined the advantage of traditional capacitor and battery, is a kind of chemical power source that has a extensive future, and belongs to emerging power back-off and energy storage device category.In recent years, the development of ultracapacitor technology had caused people's extensive concern, and successful Application is in fields such as consumer electronics series products, energy traffic (electric automobile, solar energy and wind energy energy storage), power back-offs, and its market scale enlarges fast.
Ultracapacitor is used for the elevator energy recovery system; Can make full use of the characteristics such as quick charge characteristic, long circulation life, high-specific-power, energy conversion efficiency height of ultracapacitor; Not only can improve the efficient of recuperated energy, and because the cycle life (>=1000000 times, can use 10 years) of its overlength; Synchronous with the life-span of elevator, can remove from and safeguarding and the trouble and worry of changing power supply.In addition; Because voltage can be put into 0V during the ultracapacitor discharge, in as the use of energy-recuperation system power supply, has only used the 60%-70% of its gross energy, therefore under dead electricity situations such as elevator generation power failure; Ultracapacitor power supply in support continues power supply; Ventilation and illumination in the elevator are provided, the passenger is delivered to nearest one deck, guarantee the safety of elevator and passenger.Therefore this ultracapacitor power-supply system not only can directly be used to drive elevator by recuperated energy, but also can be used as back-up source to improve the fail safe of elevator.
This system not only can be applicable to the elevator of new production, but also can be used for old Retrofit of Elevator easily, with its energy-saving effect of maximized performance.Estimate energy-conservation will be above 40%, and newly-increased investment can reclaim through the electricity charge of saving in 2～3 years, energy-saving effect is remarkable, can improve the ability that elevator is tackled various faults greatly simultaneously.Therefore this technical society is significant, and market prospects are boundless.
Simultaneously; From design, consideration easy to installation and maintenance; Be used for that elevator energy reclaims and the ultracapacitor system of loss protecting generally is positioned over the floor top with the control system of elevator, the placement ambient temperature is a little more than room temperature, and can experience high temperature summer; And integrated cooling system generally all is in the operation of ultracapacitor system, when actual temperature is higher than design temperature, to start, and this has brought adverse influence just for ultracapacitor monomer and shelf-lifeing for a long time of system.Therefore, the present invention obtains significant effect through the additive of the electrolyte in the ultracapacitor monomer is studied.
Summary of the invention
The objective of the invention is to propose a kind of ultracapacitor monomer and ultracapacitor power-supply system that is used for elevator energy recovery and loss protecting, to overcome the above-mentioned defective that prior art exists.
The present invention proposes a kind of ultracapacitor monomer, is made up of several parts of positive pole, negative pole, barrier film, organic electrolyte and exit, and the solvent that it is characterized in that organic electrolyte is by acetonitrile (CH
3CN), one or more compositions in propylene carbonate (PC) and the gamma-butyrolacton (GBL), also comprise high-temperature stabiliser alpha-cyano sulfolane in the solvent; Solute is by tetraethyl ammonium tetrafluoroborate (Et
4NBF
4) or triethyl group monomethyl ammonium tetrafluoroborate (Et
3MeNBF
4) in one or more compositions.
Wherein, the time constant of said monomer is 1 ~ 2s, and more excellent ground time constant is 1.5s.
Wherein, said monomer structure is coiling square or lamination square.
Wherein, said monomer shell is that the aluminium film is moulded in aluminum hull, box hat or flexible package.
Wherein, said both positive and negative polarity active material is any or several kinds in activated carbon, carbon fiber, carbon aerogels, CNT, carbon black, the Graphene.
Wherein, said barrier film is polyethene microporous membrane, microporous polypropylene membrane, composite membrane, inorganic ceramic membrane, paper barrier film or nonwoven fabrics barrier film.
A kind of ultracapacitor power-supply system of being made up of above-mentioned ultracapacitor monomer is characterized in that being made up of the connection in series-parallel of a plurality of said ultracapacitor monomer.
More excellent ground also comprises ultracapacitor monomer voltage equalizing system, monomer over voltage alarm system and assembly radiating system.
Wherein, said monomer voltage equalizing system is the mode of monomer and resistance parallel connection.
Wherein, said cooling system is a blower fan forced heat radiation mode.
Wherein, Said monomer over voltage alarm system begins to report to the police when monomer voltage surpasses rated voltage 50mV; Monomer voltage surpasses rated voltage 100mV ultracapacitor system and quits work, and treats that system's autobalance is that 10mV is with the work of interior ultracapacitor warm boot to the difference of ultracapacitor monomer voltage maximum and minimum value.
Wherein, the voltage range of said ultracapacitor power-supply system is 0 ~ 300V.
This ultracapacitor monomer provided by the invention and ultracapacitor power-supply system can be successfully applied to elevator energy recovery system and loss protecting system; Use as redundant electrical power; Can make full use of the characteristics such as quick charge characteristic, long circulation life, high-specific-power, energy conversion efficiency height of ultracapacitor, can satisfy the applying working condition of elevator, this technical society is significant; Market prospects are boundless, have very high social economic value.
Description of drawings
Fig. 1 is a ultracapacitor power-supply system structural representation of the present invention.
Embodiment
The ultracapacitor monomer that the present invention proposes is made up of several parts of positive pole, negative pole, barrier film, organic electrolyte and exit, and structure is coiling square or lamination square, and the monomer shell is that the aluminium film is moulded in aluminum hull, box hat or flexible package.The solvent of organic electrolyte is by acetonitrile (CH
3CN), one or more compositions in propylene carbonate (PC) and the gamma-butyrolacton (GBL), and (structural formula does to be added with high-temperature stabiliser alpha-cyano sulfolane
), solute is by tetraethyl ammonium tetrafluoroborate (Et
4NBF
4) or triethyl group monomethyl ammonium tetrafluoroborate (Et
3MeNBF
4) in one or more compositions.The time constant of monomer is 1 ~ 2s, and more excellent ground time constant is 1.5s.The both positive and negative polarity active material is any or several kinds in activated carbon, carbon fiber, carbon aerogels, CNT, carbon black, the Graphene.Barrier film is polyethene microporous membrane, microporous polypropylene membrane, composite membrane, inorganic ceramic membrane, paper barrier film or nonwoven fabrics barrier film.
Ultracapacitor power-supply system by above-mentioned ultracapacitor monomer is formed is as shown in Figure 1, is made up of a plurality of ultracapacitor monomer 3 connection in series-parallel, and the voltage range of ultracapacitor power-supply system is 0 ~ 300V.The ultracapacitor power-supply system also comprises ultracapacitor monomer voltage equalizing system 2, monomer over voltage alarm system 1 and assembly radiating system.The monomer voltage equalizing system is the mode of monomer and resistance parallel connection.Cooling system is a blower fan forced heat radiation mode, comprises air inlet duct 5, blower fan 6 and exhaust passage 4.Monomer over voltage alarm system begins to report to the police when monomer voltage surpasses rated voltage 50mV; Monomer voltage surpasses rated voltage 100mV ultracapacitor system and quits work, and treats that system's autobalance is that 10mV is with the work of interior ultracapacitor warm boot to the difference of ultracapacitor monomer voltage maximum and minimum value.
Describe specific embodiment below in detail according to ultracapacitor power-supply system of the present invention.Below the preparation method only be used for explanation of the present invention, rather than to the restriction of scope of the present invention.
Embodiment 1
Adopt active carbon to prepare pole piece as active material, adopt the paper barrier film as barrier film, the solvent of electrolyte is acetonitrile (CH
3CN), and be added with high-temperature stabiliser alpha-cyano sulfolane, the solute of electrolyte is the tetraethyl ammonium tetrafluoroborate (Et of 1mol/L concentration
4NBF
4), being prepared into the ultracapacitor monomer of lamination square aluminum plastic film flexible package, time constant is 1.0s, and 48 ultracapacitors are monomer series-connected, electric pressure is 125V.Adopt high voltage resistance to loose the consumption mode as the electric voltage equalization system; Have the voltage alarm system simultaneously,, surpass 100mV begin warning above monomer rated voltage 50mV; Ultracapacitor just quits work, and treats that system's autobalance is 10mV to the monomer voltage difference and restarts work with interior.Have the assembly radiating system simultaneously, adopt the heat radiation of 24V blower fan, comprise air inlet duct, blower fan and exhaust passage.Detect in the laboratory, under 50 ℃ of environmental conditions, carry out charge-discharge test, the internal resistance of ultracapacitor assembly there is not variation after 3 months, and capacity does not have variation, and time constant does not change, and storage power does not change.
Embodiment 2
Adopt active carbon to prepare pole piece as active material, adopt the paper barrier film as barrier film, the solvent of electrolyte is acetonitrile (CH
3CN), and be added with high-temperature stabiliser alpha-cyano sulfolane, the solute of electrolyte is the tetraethyl ammonium tetrafluoroborate (Et of 1mol/L concentration
4NBF
4), being prepared into the ultracapacitor monomer of lamination square aluminum plastic film flexible package, time constant is 1.2s, and 48 ultracapacitors are monomer series-connected, electric pressure is 125V.Adopt high voltage resistance to loose the consumption mode as the electric voltage equalization system; Have the voltage alarm system simultaneously,, surpass 100mV begin warning above monomer rated voltage 50mV; Ultracapacitor just quits work, and treats that system's autobalance is 10mV to the monomer voltage difference and restarts work with interior.Have the assembly radiating system simultaneously, adopt the heat radiation of 24V blower fan, comprise air inlet duct, blower fan and exhaust passage.Detect in the laboratory, under 50 ℃ of environmental conditions, carry out charge-discharge test, the internal resistance of ultracapacitor assembly there is not variation after 3 months, and capacity does not have variation, and time constant does not change, and storage power does not change.
Embodiment 3
Adopt active carbon to prepare pole piece as active material, adopt the paper barrier film as barrier film, the solvent of electrolyte is acetonitrile (CH
3CN), and be added with high-temperature stabiliser alpha-cyano sulfolane, the solute of electrolyte is the tetraethyl ammonium tetrafluoroborate (Et of 1mol/L concentration
4NBF
4), being prepared into the ultracapacitor monomer of lamination square aluminum plastic film flexible package, time constant is 1.5s, and 48 ultracapacitors are monomer series-connected, electric pressure is 125V.Adopt high voltage resistance to loose the consumption mode as the electric voltage equalization system; Have the voltage alarm system simultaneously,, surpass 100mV begin warning above monomer rated voltage 50mV; Ultracapacitor just quits work, and treats that system's autobalance is 10mV to the monomer voltage difference and restarts work with interior.Have the assembly radiating system simultaneously, adopt the heat radiation of 24V blower fan, comprise air inlet duct, blower fan and exhaust passage.Detect in the laboratory, under 50 ℃ of environmental conditions, carry out charge-discharge test, the internal resistance of ultracapacitor assembly there is not variation after 3 months, and capacity does not have variation, and time constant does not change, and storage power does not change.
Embodiment 4
Adopt active carbon to prepare pole piece as active material, adopt the paper barrier film as barrier film, the solvent of electrolyte is acetonitrile (CH
3CN), and be added with high-temperature stabiliser alpha-cyano sulfolane, the solute of electrolyte is the tetraethyl ammonium tetrafluoroborate (Et of 1mol/L concentration
4NBF
4), being prepared into the ultracapacitor monomer of lamination square aluminum plastic film flexible package, time constant is 1.8s, and 48 ultracapacitors are monomer series-connected, electric pressure is 125V.Adopt high voltage resistance to loose the consumption mode as the electric voltage equalization system; Have the voltage alarm system simultaneously,, surpass 100mV begin warning above monomer rated voltage 50mV; Ultracapacitor just quits work, and treats that system's autobalance is 10mV to the monomer voltage difference and restarts work with interior.Have the assembly radiating system simultaneously, adopt the heat radiation of 24V blower fan, comprise air inlet duct, blower fan and exhaust passage; Detect in the laboratory; Under 50 ℃ of environmental conditions, carry out charge-discharge test, the internal resistance of ultracapacitor assembly there is not variation after 3 months, and capacity does not have variation; Time constant there is not variation, and storage power there is not variation.
Embodiment 5
Adopt active carbon to prepare pole piece as active material, adopt the paper barrier film as barrier film, the solvent of electrolyte is acetonitrile (CH
3CN), and be added with high-temperature stabiliser alpha-cyano sulfolane, the solute of electrolyte is the tetraethyl ammonium tetrafluoroborate (Et of 1mol/L concentration
4NBF
4), being prepared into the ultracapacitor monomer of lamination square aluminum plastic film flexible package, time constant is 2s, and 48 ultracapacitors are monomer series-connected, electric pressure is 125V.Adopt high voltage resistance to loose the consumption mode as the electric voltage equalization system; Have the voltage alarm system simultaneously,, surpass 100mV begin warning above monomer rated voltage 50mV; Ultracapacitor just quits work, and treats that system's autobalance is 10mV to the monomer voltage difference and restarts work with interior.Have the assembly radiating system simultaneously, adopt the heat radiation of 24V blower fan, comprise air inlet duct, blower fan and exhaust passage; Detect in the laboratory; Under 50 ℃ of environmental conditions, carry out charge-discharge test, the internal resistance of ultracapacitor assembly there is not variation after 3 months, and capacity does not have variation; Time constant there is not variation, and storage power there is not variation.
Embodiment 6
Adopt active carbon to prepare pole piece as active material; Adopt microporous polypropylene membrane as barrier film; The solvent of electrolyte is propylene carbonate (PC), and is added with high-temperature stabiliser alpha-cyano sulfolane, and the solute of electrolyte is the triethyl group methyl ammonium tetrafluoroborate (Et of 1mol/L concentration
3MeNBF
4), being prepared into the ultracapacitor monomer that the square aluminum hull of lamination is packed, time constant is 1.3s, and 96 ultracapacitors are monomer series-connected, electric pressure is 250V.Adopt high voltage resistance to loose the consumption mode as the electric voltage equalization system; Have the voltage alarm system simultaneously,, surpass 100mV begin warning above monomer rated voltage 50mV; Ultracapacitor just quits work, and treats that system's autobalance is 10mV to the monomer voltage difference and restarts work with interior.Have the assembly radiating system simultaneously, adopt the heat radiation of 24V blower fan, comprise air inlet duct, blower fan and exhaust passage; Detect in the laboratory; Under 50 ℃ of environmental conditions, carry out charge-discharge test, the internal resistance of ultracapacitor assembly there is not variation after 3 months, and capacity does not have variation; Time constant there is not variation, and storage power there is not variation.
Embodiment 7
Adopt active carbon to prepare pole piece as active material, adopt the paper barrier film as barrier film, the solvent of electrolyte is gamma-butyrolacton (GBL), and is added with high-temperature stabiliser alpha-cyano sulfolane, and the solute of electrolyte is the tetraethyl ammonium tetrafluoroborate (Et of 1mol/L concentration
4NBF
4), being prepared into the ultracapacitor monomer that the square aluminum hull of lamination is packed, time constant is 1.6s, and 112 ultracapacitors are monomer series-connected, electric pressure is 300V.Adopt high voltage resistance to loose the consumption mode as the electric voltage equalization system; Have the voltage alarm system simultaneously,, surpass 100mV begin warning above monomer rated voltage 50mV; Ultracapacitor just quits work, and treats that system's autobalance is 10mV to the monomer voltage difference and restarts work with interior.Have the assembly radiating system simultaneously, adopt the heat radiation of 24V blower fan, comprise air inlet duct, blower fan and exhaust passage; Detect in the laboratory; Under 50 ℃ of environmental conditions, carry out charge-discharge test, the internal resistance of ultracapacitor assembly there is not variation after 3 months, and capacity does not have variation; Time constant there is not variation, and storage power there is not variation.
Embodiment 8
Adopt active carbon to prepare pole piece as active material, adopt the paper barrier film as barrier film, the solvent of electrolyte is gamma-butyrolacton (GBL), and is added with high-temperature stabiliser alpha-cyano sulfolane, and the solute of electrolyte is the tetraethyl ammonium tetrafluoroborate (Et of 1mol/L concentration
4NBF
4), being prepared into the ultracapacitor monomer of lamination square aluminum plastic film flexible package, time constant is 1.8s, and 48 ultracapacitors are monomer series-connected, electric pressure is 125V.Adopt high voltage resistance to loose the consumption mode as the electric voltage equalization system; Have the voltage alarm system simultaneously,, surpass 100mV begin warning above monomer rated voltage 50mV; Ultracapacitor just quits work, and treats that system's autobalance is 10mV to the monomer voltage difference and restarts work with interior.Have the assembly radiating system simultaneously, adopt the heat radiation of 24V blower fan, comprise air inlet duct, blower fan and exhaust passage; Detect in the laboratory; Under 50 ℃ of environmental conditions, carry out charge-discharge test, the internal resistance of ultracapacitor assembly there is not variation after 3 months, and capacity does not have variation; Time constant there is not variation, and storage power there is not variation.
Embodiment 9
Adopt carbon fiber to prepare pole piece as active material, adopt microporous polypropylene membrane as barrier film, the solvent of electrolyte is acetonitrile (CH
3CN), and be added with high-temperature stabiliser alpha-cyano sulfolane, the solute of electrolyte is the tetraethyl ammonium tetrafluoroborate (Et of 1mol/L concentration
4NBF
4), being prepared into the ultracapacitor monomer of lamination square aluminum plastic film flexible package, time constant is 1.5s, and 48 ultracapacitors are monomer series-connected, electric pressure is 125V.Adopt high voltage resistance to loose the consumption mode as the electric voltage equalization system; Have the voltage alarm system simultaneously,, surpass 100mV begin warning above monomer rated voltage 50mV; Ultracapacitor just quits work, and treats that system's autobalance is 10mV to the monomer voltage difference and restarts work with interior.Have the assembly radiating system simultaneously, adopt the heat radiation of 24V blower fan, comprise air inlet duct, blower fan and exhaust passage.
Embodiment 10
Adopt carbon fiber to prepare pole piece as active material, adopt the paper barrier film as barrier film, the solvent of electrolyte is gamma-butyrolacton (GBL), and is added with high-temperature stabiliser alpha-cyano sulfolane, and the solute of electrolyte is the tetraethyl ammonium tetrafluoroborate (Et of 1mol/L concentration
4NBF
4), being prepared into the ultracapacitor monomer that the square aluminum hull of lamination is packed, time constant is 1.5s, and 96 ultracapacitors are monomer series-connected, electric pressure is 250V.Adopt high voltage resistance to loose the consumption mode as the electric voltage equalization system; Have the voltage alarm system simultaneously,, surpass 100mV begin warning above monomer rated voltage 50mV; Ultracapacitor just quits work, and treats that system's autobalance is 10mV to the monomer voltage difference and restarts work with interior.Have the assembly radiating system simultaneously, adopt the heat radiation of 24V blower fan, comprise air inlet duct, blower fan and exhaust passage.
Embodiment 11
Adopt active carbon to prepare pole piece as active material, adopt the paper barrier film as barrier film, the solvent of electrolyte is gamma-butyrolacton (GBL), and is added with high-temperature stabiliser alpha-cyano sulfolane, and the solute of electrolyte is the tetraethyl ammonium tetrafluoroborate (Et of 1mol/L concentration
4NBF
4), being prepared into the ultracapacitor monomer that coiling square box hat is packed, time constant is 2.0s, and 112 ultracapacitors are monomer series-connected, electric pressure is 300V.Adopt high voltage resistance to loose the consumption mode as the electric voltage equalization system; Have the voltage alarm system simultaneously,, surpass 100mV begin warning above monomer rated voltage 50mV; Ultracapacitor just quits work, and treats that system's autobalance is 10mV to the monomer voltage difference and restarts work with interior.Have the assembly radiating system simultaneously, adopt the heat radiation of 24V blower fan, comprise air inlet duct, blower fan and exhaust passage; Detect in the laboratory; Under 50 ℃ of environmental conditions, carry out charge-discharge test, the internal resistance of ultracapacitor assembly there is not variation after 3 months, and capacity does not have variation; Time constant there is not variation, and storage power there is not variation.
Embodiment 12
Adopt CNT to prepare pole piece as active material, adopt composite diaphragm as barrier film, the solvent of electrolyte is acetonitrile (CH
3CN), and be added with high-temperature stabiliser alpha-cyano sulfolane, the solute of electrolyte is the tetraethyl ammonium tetrafluoroborate (Et of 1mol/L concentration
4NBF
4), being prepared into the ultracapacitor monomer of lamination square aluminum plastic film flexible package, time constant is 1.5s, and 96 ultracapacitors are monomer series-connected, electric pressure is 250V.Adopt high voltage resistance to loose the consumption mode as the electric voltage equalization system; Have the voltage alarm system simultaneously,, surpass 100mV begin warning above monomer rated voltage 50mV; Ultracapacitor just quits work, and treats that system's autobalance is 10mV to the monomer voltage difference and restarts work with interior.Have the assembly radiating system simultaneously, adopt the heat radiation of 24V blower fan, comprise air inlet duct, blower fan and exhaust passage.
Embodiment 13
Adopt CNT to prepare pole piece as active material, adopt the paper barrier film as barrier film, the solvent of electrolyte is gamma-butyrolacton (GBL), and is added with high-temperature stabiliser alpha-cyano sulfolane, and the solute of electrolyte is the tetraethyl ammonium tetrafluoroborate (Et of 1mol/L concentration
4NBF
4), being prepared into the ultracapacitor monomer that coiling square box hat is packed, time constant is 1.1s, and 48 ultracapacitors are monomer series-connected, electric pressure is 125V.Adopt high voltage resistance to loose the consumption mode as the electric voltage equalization system; Have the voltage alarm system simultaneously,, surpass 100mV begin warning above monomer rated voltage 50mV; Ultracapacitor just quits work, and treats that system's autobalance is 10mV to the monomer voltage difference and restarts work with interior.Have the assembly radiating system simultaneously, adopt the heat radiation of 24V blower fan, comprise air inlet duct, blower fan and exhaust passage.
Embodiment 14
Adopt active carbon to prepare pole piece as active material, adopt the paper barrier film as barrier film, the solvent of electrolyte is propylene carbonate (PC), and is added with high-temperature stabiliser alpha-cyano sulfolane, and the solute of electrolyte is the tetraethyl ammonium tetrafluoroborate (Et of 1mol/L concentration
4NBF
4), being prepared into the ultracapacitor monomer that coiling square box hat is packed, time constant is 1.8s, and 48 ultracapacitors are monomer series-connected, electric pressure is 125V.Adopt high voltage resistance to loose the consumption mode as the electric voltage equalization system; Have the voltage alarm system simultaneously,, surpass 100mV begin warning above monomer rated voltage 50mV; Ultracapacitor just quits work, and treats that system's autobalance is 10mV to the monomer voltage difference and restarts work with interior.Have the assembly radiating system simultaneously, adopt the heat radiation of 24V blower fan, comprise air inlet duct, blower fan and exhaust passage; Detect in the laboratory; Under 50 ℃ of environmental conditions, carry out charge-discharge test, the internal resistance of ultracapacitor assembly there is not variation after 3 months, and capacity does not have variation; Time constant there is not variation, and storage power there is not variation.
Adopt active carbon to prepare pole piece as active material, adopt the paper barrier film as barrier film, the solvent of electrolyte is acetonitrile (CH
3CN), the solute of electrolyte is the tetraethyl ammonium tetrafluoroborate (Et of 1mol/L concentration
4NBF
4), being prepared into the ultracapacitor monomer of lamination square aluminum plastic film flexible package, time constant is 1.5s, and 48 ultracapacitors are monomer series-connected, electric pressure is 125V.Adopt high voltage resistance to loose the consumption mode as the electric voltage equalization system; Have the voltage alarm system simultaneously,, surpass 100mV begin warning above monomer rated voltage 50mV; Ultracapacitor just quits work, and treats that system's autobalance is 10mV to the monomer voltage difference and restarts work with interior.Have the assembly radiating system simultaneously, adopt the heat radiation of 24V blower fan, comprise air inlet duct, blower fan and exhaust passage; Detect in the laboratory; Under 50 ℃ of environmental conditions, carry out charge-discharge test, the capacity of ultracapacitor assembly does not have variation after 3 months, but internal resistance has increased 2 times; Time constant increases 1 times, causes the physical holding of the stock energy to be merely 39wh.
The ultracapacitor monomer of making according to the present invention and capacity, the internal resistance method of testing of ultracapacitor system: charge to rated voltage with 50A; Again with the 50A current discharge to 0V; With the voltage difference that discharges and recharges conversion moment divided by 100 calculate ultracapacitors and ultracapacitor system internal resistance; Utilize formula C=Q/ △ U calculated capacity, utilize formula E=1/2C △ U
2Calculate the energy of ultracapacitor.Table 1 is the ultracapacitor monomer and the system performance parameter contrast of different time constant.
Table 1
| ? | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Time constant (s) | 1.00 | 1.20 | 1.50 | 1.80 | 2.00 |
| Ultracapacitor monomer capacity (F) | 1010.00 | 1080.00 | 1105.00 | 1111.00 | 1120.00 |
| Ultracapacitor monomer internal resistance (m Ω) | 0.99 | 1.11 | 1.36 | 1.62 | 1.79 |
| Ultracapacitor system internal resistance (m Ω) | 57.03 | 64.00 | 78.19 | 93.32 | 102.86 |
| Ultracapacitor system voltage (V) | 125 | 125 | 125 | 125 | 125 |
| Ultracapacitor system stores energy (wh) | 43.60 | 46.36 | 46.88 | 46.55 | 46.56 |
Can see that from table 1 ultracapacitor system stores energy was the highest when time constant was 1.5s among the present invention, this is because the ultracapacitor monomer of same volume; Time constant is big more, and capacity is high more, but internal resistance simultaneously also can become big; Therefore there is best proportioning in the storage power of ultracapacitor size with the size of time constant; For the technical scheme of announcing among the present invention, when the time constant between 1s-2s during arbitrary value, the energy of ultracapacitor monomer and system and power-performance are all within the scope of application; Can both obtain effect preferably; But when the time constant was 1.5s, the energy and the power-performance of ultracapacitor monomer and system reached optimum balance, and storage power is the highest.
The existence that it can also be seen that high-temperature stabiliser alpha-cyano sulfolane by embodiment 15 is significant to the durable storage of high temperature of ultracapacitor; This is that the cooling system of module case is not worked because when shelving, and ultracapacitor generally is in full power state; The control system of elevator generally is in attic; Can be equivalent to ultracapacitor and be in the high-temperature load state through the high thermal condition of estivate, the existence of alpha-cyano sulfolane can solve the charged storage problem of ultracapacitor high temperature.
Described in this specification is preferred embodiment of the present invention, and above embodiment is only in order to explain technical scheme of the present invention but not limitation of the present invention.All those skilled in the art all should be within scope of the present invention under this invention's idea through the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (13)
1. a ultracapacitor monomer is made up of several parts of positive pole, negative pole, barrier film and organic electrolyte, and the solvent that it is characterized in that organic electrolyte is by acetonitrile (CH
3CN), one or more compositions in propylene carbonate (PC) and the gamma-butyrolacton (GBL), also comprise high-temperature stabiliser alpha-cyano sulfolane in the solvent; Solute is by tetraethyl ammonium tetrafluoroborate (Et
4NBF
4) or triethyl group monomethyl ammonium tetrafluoroborate (Et
3MeNBF
4) in one or more compositions.
2. ultracapacitor monomer according to claim 1 is characterized in that the time constant of said monomer is 1 ~ 2s.
3. ultracapacitor monomer according to claim 2 is characterized in that the time constant of said monomer is 1.5s.
4. ultracapacitor monomer according to claim 1 is characterized in that, said monomer structure is coiling square or lamination square.
5. ultracapacitor monomer according to claim 1 is characterized in that, said monomer shell is that the aluminium film is moulded in aluminum hull, box hat or flexible package.
6. ultracapacitor monomer according to claim 1 is characterized in that, said both positive and negative polarity active material is any or several kinds in activated carbon, carbon fiber, carbon aerogels, CNT, carbon black, the Graphene.
7. ultracapacitor monomer according to claim 1 is characterized in that, said barrier film is polyethene microporous membrane, microporous polypropylene membrane, composite membrane, inorganic ceramic membrane, paper barrier film or nonwoven fabrics barrier film.
8. a ultracapacitor power-supply system of being made up of the described ultracapacitor monomer of one of claim 1-7 is characterized in that being made up of the connection in series-parallel of a plurality of said ultracapacitor monomer.
9. ultracapacitor power-supply system according to claim 8 is characterized in that also comprising ultracapacitor monomer voltage equalizing system, monomer over voltage alarm system and assembly radiating system.
10. ultracapacitor power-supply system according to claim 9 is characterized in that said monomer voltage equalizing system is the mode of monomer and resistance parallel connection.
11. ultracapacitor power-supply system according to claim 9 is characterized in that said cooling system is a blower fan forced heat radiation mode.
12. ultracapacitor power-supply system according to claim 9; It is characterized in that said monomer over voltage alarm system begins to report to the police when monomer voltage surpasses rated voltage 50mV; Monomer voltage surpasses rated voltage 100mV ultracapacitor system and quits work, and treats that system's autobalance is that 10mV is with the work of interior ultracapacitor warm boot to the difference of ultracapacitor monomer voltage maximum and minimum value.
13. ultracapacitor power-supply system according to claim 8, the voltage range that it is characterized in that said ultracapacitor power-supply system is 0 ~ 300V.
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| CN2011103978690A CN102496467A (en) | 2011-12-05 | 2011-12-05 | Super capacitor monomer and super capacitor power system |
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| CN2011103978690A CN102496467A (en) | 2011-12-05 | 2011-12-05 | Super capacitor monomer and super capacitor power system |
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| JPWO2019031452A1 (en) * | 2017-08-08 | 2020-09-24 | 住友精化株式会社 | Additives for non-aqueous electrolytes, non-aqueous electrolytes, and power storage devices |
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| CN111066191B (en) * | 2017-08-08 | 2023-05-05 | 住友精化株式会社 | Additive for nonaqueous electrolyte, and power storage device |
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Application publication date: 20120613 |