CN108470965A - The system for improving battery performance in low temperature - Google Patents
The system for improving battery performance in low temperature Download PDFInfo
- Publication number
- CN108470965A CN108470965A CN201810431992.1A CN201810431992A CN108470965A CN 108470965 A CN108470965 A CN 108470965A CN 201810431992 A CN201810431992 A CN 201810431992A CN 108470965 A CN108470965 A CN 108470965A
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- CN
- China
- Prior art keywords
- battery
- temperature
- unit
- voltage
- heating
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/635—Control systems based on ambient temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
- H01M10/6571—Resistive heaters
-
- 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
Abstract
The present invention provides a kind of systems improving battery performance in low temperature,Including battery,Temperature detecting unit,Voltage detection unit,Heating unit,Control unit,Temperature detecting unit and heating unit are mounted near battery,It is connect with battery,Voltage detection unit is connect with cell parallel,Control unit is stored with the voltage capacity discharge characteristic curve of battery at different temperatures,With temperature detecting unit,Voltage detection unit,Heating unit,It is capable of the component connection of wake-up device,Control unit receives the temperature according to battery ambient environment after wake-up signal,The voltage capacity discharge characteristic curve of the voltage and battery of battery at different temperatures judges that can battery meet equipment work requirements,And heating unit is controlled according to judging result, battery ambient environment is heated,Therefore,The present invention can improve the performance of battery at low ambient temperatures,So that remaining to work normally at low ambient temperatures with the equipment of battery-powered.
Description
Technical field
The invention belongs to battery technology fields, and in particular to a kind of system improving battery performance in low temperature.
Background technology
Many battery-powered internet of things equipment are normally mounted at outdoor, however in the winter of northern China, outdoor
Temperature less than -20 DEG C be very common situation, and when outdoor temperature is less than -20 DEG C, the capacity of most of battery is compared
Drastically decline compared with under room temperature or hot environment, thus cannot be satisfied normal work needs.Fig. 1 is that certain capacity is 0.25Ah batteries
Discharge curve under different temperatures, in Fig. 1, ordinate indicates that cell voltage, unit are volt (V), and abscissa indicates battery
Capacity, unit are ampere * hours (Ah).As shown in Figure 1, at -20 DEG C, when battery is discharged to 3.1V from full power state only
There is the capacity of 0.05Ah, and in the environment of room temperature (0.2 DEG C) and high temperature (60 DEG C and 80 DEG C), battery is discharged to from full power state
When 3.7V, battery capacity is to drop to 0.05Ah from about 0.25Ah.Therefore, battery is difficult to meet normal work need when low temperature
It wants, the equipment especially for needing transient high-current to work.Fig. 2 is bent to discharge under the CR123 battery different temperatures of certain brand
The nominal capacity of line chart, the battery is 1.4Ah, as shown in Figure 2, it can be seen that at -20 DEG C, the discharge capability of the battery is opposite
When 0 DEG C and 20 DEG C decline clearly, and under low temperature battery voltage decline it is also very fast, therefore, battery under low temperature
It is difficult to meet normal work needs.
And such as the battery-powered internet of things equipment such as radio meter register, car tracing often only needs for one day or one month
Automatically to automatically wake up it is primary, upload after corresponding data will automatically into dormant state, if when equipment wakes up, if electric
Pond ambient temperature is too low to be eventually led to so that battery discharge ability drastically declines so that equipment can not work normally
Whole system is paralysed, and is unable to operate normally.
Invention content
The present invention is to carry out to solve the above-mentioned problems, and it is an object of the present invention to provide a kind of improving battery at low ambient temperatures
To improve battery performance, guarantee still is able to work normally at low ambient temperatures ambient temperature using the equipment of battery-powered
Raising battery performance in low temperature system.
The present invention provides a kind of systems improving battery performance in low temperature, which is characterized in that including：Battery, to set
It is standby that electric energy is provided；
Temperature detecting unit is mounted near the battery, is connect with the battery, for detecting the battery ambient ring
The temperature in border；
Voltage detection unit is connect with the cell parallel, the voltage for detecting battery；
Heating unit is mounted near the battery, is connect with the battery, for heating the battery ambient environment
Temperature；And
Control unit is connect, the control with the temperature detecting unit, the voltage detection unit, the heating unit
Unit processed is stored with the voltage-capacity discharge characteristic curve of battery at different temperatures,
Described control unit is connect with the component for capableing of wake-up device, and when equipment needs to wake up, described control unit connects
Wake-up signal is received, described control unit obtains the temperature of the battery ambient environment of the temperature detecting unit detection, the electricity
The voltage for pressing the battery of detection unit detection judges electricity according to the voltage-capacity discharge characteristic curve of battery at different temperatures
Can pond meet equipment work requirements, open if not satisfied, then controlling the heating unit, add to battery ambient environment
Heat, and it is heated to scheduled temperature, when the temperature of the battery ambient environment of temperature detecting unit detection is more than or equal to described make a reservation for
After temperature, control heating unit stops heating, and then commander equipment is started to work, if satisfied, then direct instruction equipment works.
Further, there can also be such spy in the system of performance when raising battery provided by the invention is in low temperature
Sign：Wherein, the temperature detecting unit is temperature sensor.
Further, there can also be such spy in the system of performance when raising battery provided by the invention is in low temperature
Sign：Wherein, described control unit is the microcontroller with store function.
Further, there can also be such spy in the system of performance when raising battery provided by the invention is in low temperature
Sign：Wherein, the heating unit is heating wire.
Further, there can also be such spy in the system of performance when raising battery provided by the invention is in low temperature
Sign：Wherein, the battery is wrapped up by shell, and the heating unit and the temperature detecting unit are installed in the shell.
Advantages of the present invention is as follows：
According to the system according to the present invention for improving battery performance in low temperature, temperature detection list is set in battery ambient
Member, the temperature for detecting battery ambient environment, a voltage detection unit in parallel on battery, the voltage for detecting battery,
Heating unit is set near battery, the temperature for heating battery ambient, control unit after receiving wake-up signal, according to
The voltage combination battery for the battery that the temperature of the battery ambient environment of temperature detecting unit detection, voltage detection unit detect is not
Voltage-capacity discharge characteristic curve under synthermal show whether battery disclosure satisfy that the demand of equipment normal work, if energy
Enough meet equipment normal work demand, then control unit commander equipment works normally, if cannot meet equipment normal work need
It asks, then control unit control heating unit opening heats the environment of battery ambient, after being heated to predetermined temperature, closes
Heating unit, then commander equipment work normally, therefore, the system of raising battery performance in low temperature of the invention can improve
The performance of battery at low ambient temperatures so that remain to work normally at low ambient temperatures with the equipment of battery-powered.
Description of the drawings
Fig. 1 is discharge curve under certain battery different temperatures；
Fig. 2 be certain brand CR123 battery different temperatures under discharge curve；
Fig. 3 is the logical schematic that battery system of performance in low temperature is improved in the present invention；
Fig. 4 is the circuit diagram that battery system of performance in low temperature is improved in the present invention；
Fig. 5 is the control flow chart of control unit in the present invention.
Specific implementation mode
It is real below in order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand
Example combination attached drawing is applied to be specifically addressed present invention raising battery system of performance in low temperature.
The system 100 for improving battery performance in low temperature is mainly used in off working state and enters suspend mode, and when work is automatic
The equipment of wake-up.As shown in Figure 3, Figure 4, the system 100 of raising battery performance in low temperature includes：Battery 10, temperature detection list
Member 20, voltage detection unit 30, heating unit 40 and control unit 50.
Battery 10 is used to provide electric energy for equipment.
Temperature detecting unit 20 is mounted near battery, is connect with battery 10, and electric energy, temperature inspection are provided for it by battery 10
Survey the temperature that unit 20 is used to detect 10 ambient enviroment of battery.In the present embodiment, temperature detecting unit 20 is temperature sensor.
Heating unit 40 is mounted near battery 10, is connect with battery 10, electric energy, heating unit are provided for it by battery 10
40 temperature for heating 10 ambient enviroment of battery.In the present embodiment, heating unit 40 is electric heating wire, and heater strip can divide
Surrounding of the cloth in battery.
In the present embodiment, battery 10 is wrapped up by a shell, and temperature detecting unit 20 and heating unit 40 are arranged at outside
In shell, heating unit 40 is facilitated to heat the temperature of battery ambient environment.
Voltage detection unit 30 is connected in parallel with battery 10, the voltage for detecting battery 10.In the present embodiment, voltage
Detection unit 30 is voltmeter.
Control unit 50 is connect with temperature detecting unit 20, voltage detection unit 30, heating unit 40.In the present embodiment
In, as shown in figure 4, being connect with control unit 50 after 40 parallel connection of temperature detecting unit 20 and heating unit, control unit 50 connects
Battery 10.Control unit 50 is connect with the component for capableing of wake-up device, receives calling out for the component transmission for capableing of wake-up device
Awake signal, wake-up signal can be wireless signal, can also be the signal of wire transmission.
Control unit 50 is stored with the voltage-capacity discharge characteristic curve of battery at different temperatures.In the present embodiment,
Control unit 50 is the microcontroller with store function, i.e., the chip of EEPROM or FLASH, example inside microcontroller band
Such as：STC89C51, STC12C5612 and AVR single chip of STC.
As shown in figure 5, the control flow of control unit 50 is：When equipment needs to wake up, control unit 50 will receive wake-up
Signal, starts the state for detecting battery, and control unit 50 reads 10 ambient enviroment of battery that temperature detecting unit 20 detects at this time
Temperature, voltage detection unit 30 detect battery 10 voltage, put then in conjunction with the voltage-capacity of battery at different temperatures
Electrical characteristics curve judges whether battery disclosure satisfy that the demand of normal work at this time, if can meet demand, control unit 50 controls
Control equipment enters normal work program；If it is impossible to meet demand, control unit 50 controls heating unit 40 and opens, to electricity
Pond ambient enviroment is heated, and is heated to scheduled temperature, the battery 10 that control unit 50 is detected in temperature detecting unit 20
After the temperature of ambient enviroment is more than or equal to predetermined temperature, control heating unit 40 stops heating, and then control device enters normal
Working procedure.In the present embodiment, predetermined temperature refers to 25 degrees Celsius of room temperature, since performance is good at normal temperatures for battery.
For example, it includes GSM/3G/LTE receive-transmit systems that certain, which uses the locating reporting system of lithium battery power supply, locating reporting system,
And GPS positioning system.The locating reporting system needs to report a latitude and longitude information daily, and the working time is no more than 5 minutes, work
Electricity consumption is more when work, and in a dormant state, power consumption is extremely low for remaining time device.
After reaching the time of equipment wake-up work, control unit 50 receives wake-up signal, and control unit 50 is according to reality
When battery voltage and environment temperature judge whether present battery status disclosure satisfy that the requirement of this task, if it is possible to it is full
Foot, then locating reporting system starts to work normally；If it is impossible to meet control unit 50 controls heating unit 40 to battery week
Collarette border is heated, and is heated to room temperature or more, and reaching room temperature according to the temperature that temperature detecting unit 20 detects, (25 is Celsius
Degree), control unit 50 controls heating unit 40 and stops heating, and then locating reporting system starts to work normally.When work terminates
Afterwards, locating reporting system enters dormant state, waits for wake up next time.
Battery ambient environment is heated so that battery 10 is under higher environment temperature, so as to improve electricity
The capacity in pond 10 so that battery 10 disclosure satisfy that equipment works normally.Certainly, made by heating the environment temperature of battery ambient
Battery can work normally, and can only be sufficient in battery 10 electricity itself, and only be because of battery caused by environment temperature is too low
It is feasible with ability when off-capacity, if battery not enough power supply itself is worked normally with holding equipment, using heating battery ambient temperature
The mode of degree is simultaneously not suitable for.
Enter dormant state when the present invention is primarily directed to inoperative, the equipment that when work automatically wakes up, when needing to wake up
When equipment, wake-up signal is sent out to control unit 50, control unit 50 receives wake-up signal, starts the state for detecting battery.When
The equipment that so can be used for not needing suspend mode, such as in the weather of severe cold, when battery can not work normally because of weather cold,
The component for capableing of wake-up device that control unit 50 connects at this time is peripheral control unit, is controlled by peripheral control unit and improves battery
The work of the system 100 of performance in low temperature.
The above embodiment is the preferred case of the present invention, is not intended to limit protection scope of the present invention.
Claims (5)
1. a kind of system improving battery performance in low temperature, which is characterized in that including：
Battery provides electric energy for equipment；
Temperature detecting unit is mounted near the battery, is connect with the battery, for detecting the battery ambient environment
Temperature；
Voltage detection unit is connect with the cell parallel, the voltage for detecting battery；
Heating unit is mounted near the battery, is connect with the battery, the temperature for heating the battery ambient environment
Degree；And
Control unit is connect with the temperature detecting unit, the voltage detection unit, the heating unit, and the control is single
Member is stored with the voltage-capacity discharge characteristic curve of battery at different temperatures,
Described control unit is connect with the component for capableing of wake-up device, and when equipment needs to wake up, described control unit receives
Wake-up signal, described control unit obtain the temperature of the battery ambient environment of the temperature detecting unit detection, voltage inspection
The voltage for surveying the battery of unit detection, judges battery energy according to the voltage-capacity discharge characteristic curve of battery at different temperatures
It is no to meet equipment work requirements, it is opened if not satisfied, then controlling the heating unit, battery ambient environment is heated, and
It is heated to scheduled temperature, when the temperature of the battery ambient environment of temperature detecting unit detection is more than or equal to the predetermined temperature
Afterwards, control heating unit stops heating, and then commander equipment is started to work, if satisfied, then direct instruction equipment works.
2. the system according to claim 1 for improving battery performance in low temperature, it is characterised in that：
The temperature detecting unit is temperature sensor.
3. the system according to claim 1 for improving battery performance in low temperature, it is characterised in that：
Described control unit is the microcontroller with store function.
4. the system according to claim 1 for improving battery performance in low temperature, it is characterised in that：
The heating unit is heating wire.
5. the system according to claim 1 for improving battery performance in low temperature, it is characterised in that：
The battery is wrapped up by shell, and the heating unit and the temperature detecting unit are installed in the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810431992.1A CN108470965A (en) | 2018-05-08 | 2018-05-08 | The system for improving battery performance in low temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810431992.1A CN108470965A (en) | 2018-05-08 | 2018-05-08 | The system for improving battery performance in low temperature |
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| Publication Number | Publication Date |
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| CN108470965A true CN108470965A (en) | 2018-08-31 |
Family
ID=63261047
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810431992.1A Pending CN108470965A (en) | 2018-05-08 | 2018-05-08 | The system for improving battery performance in low temperature |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111245053A (en) * | 2020-02-05 | 2020-06-05 | 苏州摩比信通智能系统有限公司 | Electronic device and control method for prolonging service life of battery at low temperature |
| CN111361457A (en) * | 2018-12-26 | 2020-07-03 | 郑州宇通客车股份有限公司 | Vehicle and heating control method of power battery of vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111361457A (en) * | 2018-12-26 | 2020-07-03 | 郑州宇通客车股份有限公司 | Vehicle and heating control method of power battery of vehicle |
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| CN111245053B (en) * | 2020-02-05 | 2024-01-30 | 苏州摩比信通智能系统有限公司 | Electronic device and control method for improving battery life at low temperature thereof |
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