CN209111948U - A kind of new type lithium ion super-capacitor accessory power system - Google Patents
A kind of new type lithium ion super-capacitor accessory power system Download PDFInfo
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- CN209111948U CN209111948U CN201821665022.XU CN201821665022U CN209111948U CN 209111948 U CN209111948 U CN 209111948U CN 201821665022 U CN201821665022 U CN 201821665022U CN 209111948 U CN209111948 U CN 209111948U
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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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- 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
- Y02T10/72—Electric energy management in electromobility
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Abstract
The utility model provides a kind of new type lithium ion super-capacitor accessory power system, comprising: a capacitance group, master control CMS plate, from control CMS board group, current sensor, first contactor, second contactor, third contactor, first fuse, second fuse, third fuse, two-way DC/DC bidirectional transducer and AC/DC converter；First contactor, first fuse, capacitance group, second fuse, second contactor and current sensor are sequentially connected between the plus end and negative terminal of two-way DC/DC converter；Third contactor and third fuse are sequentially connected between the plus end and capacitance group of AC/DC converter, the negative terminal of AC/DC converter is connected to the negative terminal of two-way DC/DC converter.The beneficial effects of the utility model are: the safer and more reliable power supply for hydrogen fuel cell vehicle, realizes the starting to hydrogen fuel cell vehicle, acceleration and energy regenerating, environmental protection and energy-efficient effect are played.
Description
Technical field
The utility model relates to hydrogen fuel cell power entire car field more particularly to a kind of new type lithium ion super capacitor are auxiliary
Power-assist Force system.
Background technique
It is increasingly prominent with environmental issue, traditional energy it is increasingly depleted, the whole world is all energetically being found and is being used
New energy, to improve efficiency of energy utilization and protect environment.Hydrogen fuel cell power passenger car have environmental protection, efficiently, energy conservation and
The features such as safe, therefore more and more paid close attention to and pay attention to by automobile industry personage and the whole society.Dynamical system is as core
Component improves its integral energy utilization efficiency, extends the service life of hydrogen fuel cell and improves the rate of recovery of braking energy,
It is using hydrogen fuel cell as one of the key factor of the passenger car efficient operation of power.
In the prior art, pure electric automobile substantially uses lithium ion battery as dynamical system, and energy reversal is sufficient
In the case of, the volume of battery pack is big, and weight weight, power-performance and high temperature performance are bad, and has serious safety and environmental protection
Risk.Although traditional supercapacitor can satisfy automobile in starting, acceleration, climbing to high-power demand, but its
Energy density is low, is not able to satisfy the power storage of large capacity；And supercapacitor self-discharge rate is high, permanent electricity of placing is zero.
In addition, another defect of dynamical system in the prior art be not to super capacitor group carry out one it is reliable and efficient
Power management.Since there are capacity tolerances between supercapacitor monomer, leakage current deviation and equivalent series resistance are inconsistent, lead
Cause the voltage in super capacitor group unbalanced, to reduce the energy storage efficiency of super capacitor.In addition, over-voltage, overcurrent and excess temperature
The service life of super capacitor will be reduced.Matched therefore, it is necessary to find one kind novel accessory power system and hydrogen fuel cell
It closes, can just design energy-efficient and first-class riding experience hydrogen fuel cell power entire car.
Summary of the invention
To solve the above-mentioned problems, the utility model provides a kind of new type lithium ion super-capacitor accessory power system.
A kind of new type lithium ion super-capacitor accessory power system, comprising: a capacitance group, master control CMS plate, from control CMS board group, electric current
It is sensor, first contactor, second contactor, third contactor, first fuse, second fuse, third fuse, two-way
DC/DC converter and AC/DC converter；
First contactor, first fuse, capacitor are sequentially connected between the plus end and negative terminal of two-way DC/DC converter
Group, second fuse, second contactor and current sensor；It is sequentially connected between the plus end and capacitance group of AC/DC converter
Third contactor and third fuse, the negative terminal of AC/DC converter are connected to the negative terminal of two-way DC/DC converter；
Master control CMS plate is separately connected from control CMS board group, the control terminal of first contactor, the control terminal of second contactor, the
Control terminal, the control terminal of first fuse, the control terminal of second fuse, the control terminal of third fuse, electricity of three contactors
The output end and temperature sensor of flow sensor；First contactor and second contactor are for controlling two-way DC/DC converter just
Connecting and disconnecting of the circuit between terminal and negative terminal；Third contactor is for controlling between AC/DC converter plus end and negative terminal
Connecting and disconnecting of the circuit；First fuse, second fuse and third fuse are used to protect new type lithium ion super capacitor auxiliary dynamic
The circuit safety of Force system；
Master control CMS plate, the parameter for detecting the capacitance group respectively from control CMS board group, current sensor and temperature sensor,
The parameter includes the temperature of the voltage of capacitance group, the electric current of capacitance group and capacitance group, and the voltage of capacitance group is by from control CMS board group
It is collected by the voltage acquisition line connected in capacitance group, the electric current of capacitance group is detected to obtain by current sensor, capacitance group
Temperature detect to obtain by temperature sensor.
Further, from control CMS board group include from control CMS plate LCU1#, from control CMS plate LCU2# and from control CMS plate
LCU3# is respectively connected to master control CMS plate from control CMS plate LCU1#, from control CMS plate LCU2# and from control CMS plate LCU3#.
Further, the capacitance group includes two parts, and every part contains at least one lithium-ion capacitor monomer, and two
/ it is in series with Manual maintenance switch.
Further, AC/DC converter connects backup power source, does not have electricity to input to the electricity in two-way DC/DC converter
Appearance group charging or capacitance group in self discharge in the case where being lower than safe starting voltage range, backup power source is to new type lithium ion
The capacitance group of super-capacitor accessory power system charges.
Technical solution provided by the utility model has the benefit that safer and more reliable is that hydrogen fuel cell is whole
The power supply of vehicle, and the starting to hydrogen fuel cell vehicle, acceleration and energy regenerating are realized, it plays environmentally friendly and energy-efficient
Effect, and improve the energy storage efficiency and service life of capacitance group.
Detailed description of the invention
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing:
Fig. 1 is a kind of circuit diagram of new type lithium ion super-capacitor accessory power system in the utility model embodiment；
Fig. 2 is the controlling party that a kind of new type lithium ion super-capacitor accessory power system is used in the utility model embodiment
The flow chart of method.
Marked in the figure: 1.1- lithium-ion capacitor monomer；1.2- master control CMS plate；A1.3- from control CMS plate LCU1#；B1.4-
From control CMS plate LCU2#；C1.5- from control CMS plate LCU3#；1.5- current sensor；1.6- contactor LVD2；1.7- contactor
LVD1；1.10- Manual maintenance switch；2.1- fuse F1；2.2- fuse F2；2.3- contactor LVD11；2.4- fuse
F11。
Specific embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, now control attached drawing is detailed
Illustrate specific embodiment of the present utility model.
The embodiments of the present invention provide a kind of new type lithium ion super-capacitor accessory power system, in the present embodiment
Lithium ion super capacitor use lithium ion supercapacitor structures, anode use conventional Super capacitor anode material,
Cathode uses the super capacitor negative electrode material of lithium ion, and the power density of the super capacitor negative electrode material of lithium ion is high, connects
It is bordering on supercapacitor, therefore has large current charge ability to accept；And the energy of the super capacitor negative electrode material of lithium ion
Density is 2~3 times of supercapacitor, and cycle life is up to million times or more.In addition, lithium-ion capacitor self-discharge rate is low,
25 DEG C of room temperature are placed 3 months, voltage decline≤5%；It is internal there is no lithium with wide use temperature range (- 30 DEG C~70 DEG C)
Unstable unsafe ingredient of ion battery, safety in operation and high reliablity, and it is non-maintaining.
Referring to FIG. 1, Fig. 1 is a kind of new type lithium ion super-capacitor accessory power system in the utility model embodiment
Circuit diagram, a kind of new type lithium ion super-capacitor accessory power system are hydrogen fuel cell power for assisting hydrogen fuel cell
Vehicle power supply；
A kind of new type lithium ion super-capacitor accessory power system, comprising: a capacitance group, master control CMS plate (1.2), from
Control CMS board group (A1.3, B1.4, C1.5), current sensor (1.5), first contactor (1.7), second contactor (1.6), the
Three contactors (2.3), first fuse (2.1), second fuse (2.2), third fuse (2.4), two-way DC/DC converter
With AC/DC converter；Wherein, AC/DC converter is unidirectional transducer；
First contactor is the contactor LVD1 (1.7) in Fig. 1, and second contactor is the contactor LVD2 in Fig. 1
(1.6), third contactor is the contactor LVD11 (2.3) in Fig. 1, and first fuse is the fuse F1 in Fig. 1
(2.1), second fuse is the fuse F2 (2.2) in Fig. 1, and third fuse is the fuse F11 (2.4) in Fig. 1,
Temperature sensor is T the namely LIC Temp Sensor in Fig. 1, and lithium-ion capacitor is lithium-ion capacitor monomer,
Temperature sensor is expressed as temperature sensor T.
First contactor (1.7), first fuse are sequentially connected between the plus end and negative terminal of two-way DC/DC converter
(2.1), capacitance group, second fuse (2.2), second contactor (1.6) and current sensor (1.5)；AC/DC converter is just
Third contactor (2.3) and third fuse (2.4), the negative terminal of AC/DC converter are sequentially connected between terminal and capacitance group
It is connected to the negative terminal of two-way DC/DC converter；
Master control CMS plate (1.2) be separately connected from control CMS board group (A1.3, B1.4, C1.5), first contactor control terminal,
The control terminal of second contactor, the control terminal of third contactor, the control terminal of first fuse, the control terminal of second fuse,
The control terminal of third fuse, the output end of current sensor and temperature sensor T；That is, master control CMS plate (1.2) connects respectively
It connects from control CMS board group, the control terminal of contactor LVD1 (1.7), the control terminal of contactor LVD2 (1.6), contactor LVD11
(2.3) control of control terminal, the control terminal of fuse F1 (2.1), the control terminal of fuse F2 (2.2), fuse F11 (2.4)
End processed, current sensor (1.5) output end and temperature sensor T；
First contactor (1.7) and second contactor (1.6) are for controlling new type lithium ion super capacitor auxiliary power system
Connecting and disconnecting of the circuit between the two-way DC/DC converter plus end and negative terminal of system；Third contactor (2.3) is for controlling novel lithium
Connecting and disconnecting of the circuit between the AC/DC converter plus end and negative terminal of ion super-capacitor accessory power system；First fuse
(2.1), second fuse (2.2) and third fuse (2.3) are used to protect new type lithium ion super capacitor auxiliary power system
The circuit safety of system；Current sensor (1.5) is used to detect the circuit electricity in new type lithium ion super-capacitor accessory power system
The electric current of stream namely capacitance group, reflection charge status give master control CMS plate, feed back to the central processing unit of vehicle；
Capacitance group is connected between fuse F1 (2.1) and fuse F2 (2.2), and is connected on fuse F2 simultaneously
(2.2) between fuse F11 (2.4), the capacitance group includes two parts, and every part contains at least one lithium-ion capacitor
Monomer (1.1) is in series with Manual maintenance switch (1.10) between two parts；The Manual maintenance switch (1.10) for repair when
The intermediate disconnecting circuit of concatenated capacitor monomer reduces the circuit voltage of new type lithium ion super-capacitor accessory power system,
For protecting circuit；Capacitance group in the present embodiment has been connected 136 lithium-ion capacitance monomers (1.1)；
Master control CMS plate (1.2) detects the electricity from control CMS board group, current sensor (1.5) and temperature sensor T respectively
The parameter of appearance group, and give the parameter feedback to master control CMS plate；Master control CMS plate passes through CAN Port PORT COM for the ginseng
Number feeds back to two-way DC/DC converter, and two-way DC/DC converter will be in the parameter by the CAN Port PORT COM of itself
It is transmitted to the central processing unit of vehicle；The parameter include the voltage of capacitance group, the electric current of capacitance group, capacitance group remaining capacity
The temperature of SOC and capacitance group, voltage from control CMS board group by the voltage acquisition line connected in capacitance group by collecting, electric current
It detects to obtain by current sensor, the remaining capacity SOC of capacitance group is calculated by master control CMS, and the temperature of capacitance group is by temperature
Sensor T detects to obtain；From control CMS board group include from control CMS plate LCU1# (A1.3), from control CMS plate LCU2# (B1.4) and from
Control CMS plate LCU3# (C1.5), from control CMS plate LCU1# (A1.3), from control CMS plate LCU2# (B1.4) and from control CMS plate LCU3#
(C1.5) it is respectively connected to master control CMS plate (1.2)；
The switch terminals of contactor LVD1 (1.7) are connected with the fusing end of fuse F1 (2.1)；Contactor LVD1 (1.7) is used
Circuit in control new type lithium ion super-capacitor accessory power system between two-way DC/DC converter plus end and negative terminal
On-off；Fuse F1 (2.1) is for protecting circuit；
The switch terminals of contactor LVD2 (1.6) are connected with the fusing end of fuse F2 (2.2)；Contactor LVD2 (1.6) is used
Circuit in control new type lithium ion super-capacitor accessory power system between two-way DC/DC converter plus end and negative terminal
On-off；Fuse F2 (2.2) is for protecting circuit；
The switch terminals of contactor LVD11 (2.3) are connected with the fusing end of fuse F11 (2.4)；Contactor LVD11 (2.3)
For controlling the on-off of spare charging port circuit circuit i.e. between AC/DC converter plus end and negative terminal；Fuse F11
(2.4) for protecting circuit；AC/DC converter connects backup power source, and AC/DC converter and backup power source are connect with capacitance group,
There is no electricity to input to the capacitance group charging or capacitance group in two-way DC/DC converter electric to clean boot is lower than in self discharge
In the case where pressing range, backup power source charges to the capacitance group of new type lithium ion super-capacitor accessory power system.
New type lithium ion super-capacitor accessory power system is the system of two-way flow, by fuel cell pack when vehicle stable state
It conveys energy and charges by two-way DC/DC converter to the capacitance group；Motor feedback energy passes through DC/ when vehicle emergency braking
DC converter charges to the capacitance group；Capacitance group described in vehicle cold start-up moment releases energy through two-way DC/DC converter
It powers to motor；The capacitance group offer transient energy is to two-way DC/DC converter when accelerating or going up a slope for vehicle, by two-way
DC/DC converter is powered to the motor in vehicle.
When vehicle starts, the external 12VDC accessory power supply of new type lithium ion super-capacitor accessory power system gives master control CMS plate
(1.2) it powers, master control CMS plate (1.1) is transferred to contactor LVD1 (1.7) by communication harness by signal is controlled, and is controlled and connect
Tentaculum LVD1 (1.7) is closed the switch；Electricity is taken from master control CMS plate (1.2) from control CMS board group, master and slave control CMS plate works normally；
Wherein, from control CMS board group include from control CMS plate LCU1# (A1.3), from control CMS plate LCU2# (B1.4) and from control CMS plate LCU3#
(C1.5)；From the parameter of control CMS board group capacitance group, and give the parameter feedbacks such as the electric current, voltage and temperature of capacitance group to master control CMS
Plate (1.2), master control CMS plate (1.2) is by these parameter feedbacks to the central processing unit of vehicle；When the parameter is normal, newly
Type lithium ion super capacitor accessory power system is pre-charged the motor in vehicle, until precharge is completed；Vehicle is promptly made
When dynamic, the energy in motor is recovered in capacitance group by DC/DC.
Control method for above-mentioned new type lithium ion super-capacitor accessory power system, comprising the following steps:
S101: new type lithium ion super-capacitor accessory power system external accessory power supply is powered to master control CMS plate, external auxiliary
It helps power supply to be provided by vehicle, takes electricity from master control CMS plate from control CMS board group, master control CMS plate and start to work from control CMS board group,
Master control CMS plate transmits a signal to first contactor by communicating harness, and controls first contactor and close the switch；Then second
Just whether contactless contactor closure, new type lithium ion super-capacitor accessory power system start to carry out self-test, judge process of self-test
Often? if so, arriving step S102；If it is not, then arriving step S103；Wherein, process of self-test include from control CMS board group to novel lithium from
Voltage, electric current and the master control CMS plate of capacitance group in sub- super-capacitor accessory power system to the calculating of remaining capacity SOC,
The detection of insulating properties；
S102: new type lithium ion super-capacitor accessory power system is pre-charged the motor of vehicle；Precharge is completed
Afterwards, the communication mechanism established by new type lithium ion super-capacitor accessory power system and vehicle, new type lithium ion super capacitor
The parameter for the capacitance group that accessory power system will test is uploaded to the central processing unit of vehicle, and new type lithium ion is super
Capacitor accessory power system is powered vehicle, and vehicle brings into operation, until hydrogen fuel cell starts normal power supply；The ginseng
Number includes voltage, electric current, temperature and the insulating properties of the capacitance group；
S103: new type lithium ion super-capacitor accessory power system is not pre-charged the motor of vehicle；Meanwhile master control
Abnormal signal is fed back to the central processing unit of vehicle by two-way DC/DC converter by CMS plate, is carried out CMS and is reported an error, vehicle is not
Starting.
In vehicle operational process, new type lithium ion super-capacitor accessory power system continues self-test:
(1) when detecting the excessively high capacitance group temperature, overcurrent or over-voltage signal, new type lithium ion super capacitor auxiliary
By two-way DC/DC converter, by the capacitance group temperature, excessively high, overcurrent or over-voltage signal feed back to vehicle to dynamical system
Central processing unit, vehicle make the response forbidden to charging to the capacitance group；If vehicle does not respond to, then is disconnected
One contactor, to be protected to new type lithium ion super-capacitor accessory power system；
(2) when detecting the under-voltage signal of the capacitance group, new type lithium ion super-capacitor accessory power system passes through two-way
The under-voltage signal of the capacitance group is fed back to the central processing unit of vehicle by DC/DC converter, vehicle make forbid novel lithium from
The response that sub- super-capacitor accessory power system is discharged；Or sent instructions by fuel pile by automatically controlled to institute by vehicle
State capacitance group carry out charging to new type lithium ion super-capacitor accessory power system voltage it is normal；If vehicle does not respond to, then break
First contactor is opened, to protect to new type lithium ion super-capacitor accessory power system；
(3) when detecting the capacitance group short-circuit signal, new type lithium ion super-capacitor accessory power system passes through two-way
The capacitance group short-circuit signal is fed back to the central processing unit of vehicle by DC/DC converter, and disconnects first contactor and
Two contactors, to be protected to new type lithium ion super-capacitor accessory power system；
(4) when detecting new type lithium ion super-capacitor accessory power system and vehicle electric leakage signal, new type lithium ion is super
Grade capacitor accessory power system is leaked new type lithium ion super-capacitor accessory power system and vehicle by two-way DC/DC converter
Electric signal feeds back to the central processing unit of vehicle, and disconnects first contactor and second contactor, with super to new type lithium ion
Grade capacitor accessory power system is protected.
The lithium-ion capacitor used in the present embodiment has high power density, wide temperature suitable relative to supercapacitor
Ying Xing, low self-discharge rate and the advantages that compared with long circulation life.The utility model can realize the management to each monomer simultaneously,
Electric voltage equalization between monomer, for new type lithium ion super-capacitor accessory power system using safe and reliable, realization multiplies hydrogen fuel cell
With the starting, acceleration and energy regenerating of vehicle.
The beneficial effects of the utility model are: the safer and more reliable power supply for hydrogen fuel cell passenger car, and realize
Starting, acceleration and energy regenerating to hydrogen fuel cell vehicle plays environmental protection and energy-efficient effect, and improves electricity
The energy storage efficiency and service life of appearance group.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (4)
1. a kind of new type lithium ion super-capacitor accessory power system, it is characterised in that: include: a capacitance group, master control CMS
Plate is melted from control CMS board group, current sensor, first contactor, second contactor, third contactor, first fuse, second
Disconnected device, third fuse, two-way DC/DC converter and AC/DC converter；
Be sequentially connected between the plus end and negative terminal of two-way DC/DC converter first contactor, first fuse, capacitance group,
Second fuse, second contactor and current sensor；Third is sequentially connected between the plus end and capacitance group of AC/DC converter
Contactor and third fuse, the negative terminal of AC/DC converter are connected to the negative terminal of two-way DC/DC converter；
Master control CMS plate is separately connected from control CMS board group, the control terminal of first contactor, the control terminal of second contactor, third and connects
The control terminal of tentaculum, the control terminal of first fuse, the control terminal of second fuse, the control terminal of third fuse, electric current pass
The output end and temperature sensor of sensor；First contactor and second contactor are for controlling two-way DC/DC converter plus end
Connecting and disconnecting of the circuit between negative terminal；Third contactor is used to control the circuit between AC/DC converter plus end and negative terminal
On-off；First fuse, second fuse and third fuse are used to protect new type lithium ion super capacitor auxiliary power system
The circuit safety of system；
Master control CMS plate, the parameter for detecting the capacitance group respectively from control CMS board group, current sensor and temperature sensor, it is described
Parameter includes the temperature of the voltage of capacitance group, the electric current of capacitance group and capacitance group, and the voltage of capacitance group from control CMS board group by passing through
The voltage acquisition line connected in capacitance group collects, and the electric current of capacitance group is detected to obtain by current sensor, the temperature of capacitance group
Degree is detected to obtain by temperature sensor.
2. a kind of new type lithium ion super-capacitor accessory power system as described in claim 1, it is characterised in that: from control CMS
Board group include from control CMS plate LCU1#, from control CMS plate LCU2# and from control CMS plate LCU3#, from control CMS plate LCU1#, from control CMS
Plate LCU2# and from control CMS plate LCU3# be respectively connected to master control CMS plate.
3. a kind of new type lithium ion super-capacitor accessory power system as described in claim 1, it is characterised in that: the capacitor
Group includes two parts, and every part contains at least one lithium-ion capacitor monomer, is in series with Manual maintenance switch between two parts.
4. a kind of new type lithium ion super-capacitor accessory power system as described in claim 1, it is characterised in that: AC/DC turns
Parallel operation connects backup power source, and not having electricity to input in two-way DC/DC converter, the capacitance group charges or capacitance group is being put certainly
In the case that electricity is extremely lower than safe starting voltage range, electricity of the backup power source to new type lithium ion super-capacitor accessory power system
The charging of appearance group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821665022.XU CN209111948U (en) | 2018-10-12 | 2018-10-12 | A kind of new type lithium ion super-capacitor accessory power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821665022.XU CN209111948U (en) | 2018-10-12 | 2018-10-12 | A kind of new type lithium ion super-capacitor accessory power system |
Publications (1)
| Publication Number | Publication Date |
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| CN209111948U true CN209111948U (en) | 2019-07-16 |
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ID=67200985
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| CN201821665022.XU Active CN209111948U (en) | 2018-10-12 | 2018-10-12 | A kind of new type lithium ion super-capacitor accessory power system |
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| Country | Link |
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2018
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