CN206313098U - A kind of lithium battery attemperator at low temperature - Google Patents
A kind of lithium battery attemperator at low temperature Download PDFInfo
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- CN206313098U CN206313098U CN201621344358.7U CN201621344358U CN206313098U CN 206313098 U CN206313098 U CN 206313098U CN 201621344358 U CN201621344358 U CN 201621344358U CN 206313098 U CN206313098 U CN 206313098U
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- lithium battery
- temperature
- low temperature
- heating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides the higher limit and lower limit of a kind of lithium battery attemperator at low temperature, the environment temperature of intelligent temperature control system detection lithium battery, and design temperature；When the environment temperature of the lithium battery is less than the lower limit, zone of heating of the intelligent temperature control system by electrically heated mode to the lithium battery is heated；When the environment temperature of the lithium battery reaches the higher limit, the intelligent temperature control system stops, to the zone of heating heating of the lithium battery, making the temperature of the lithium battery be maintained in setting range, realizes the normal discharge and recharge under external environment low temperature.Lithium battery described in the utility model attemperator at low temperature, real-time detection and the interior environment temperature of lithium battery can be regulated and controled, lithium battery is realized normal charging/discharging function at the relatively low temperature of external environment condition, expand and use scope, enhance enterprise competitiveness.
Description
Technical field
The utility model belongs to battery charging and discharging field, more particularly, to a kind of lithium battery attemperator at low temperature.
Background technology
Lithium ion battery is a kind of secondary cell (rechargeable battery), because its outstanding performance is widely used in a day electricity consumption
Sub- product power supply.Its Applicable temperature is -20 DEG C~40 DEG C.Lithium battery at low temperature actual discharge performance well below under normal temperature
Discharge performance, and declined with temperature drop.It is general at -20 DEG C, discharge capability be only at room temperature 10%~
20%, at -30 DEG C, discharge capability only remains 2% or so.Lithium battery easily causes lithium ion to exist in low temperature charging process simultaneously
Negative pole is separated out, and produces lithium metal crystallization, i.e. " lithium dendrite arm " phenomenon.The generation of " lithium dendrite arm " can make the membrane ruptures of battery and cause
The short circuit of inside battery both positive and negative polarity, produces safety problem.Meanwhile, lithium metal can lower battery-active with electrolyte reaction, accelerate
The decay of battery life.
The content of the invention
In view of this, the present invention is directed to propose a kind of lithium battery heat preserving method at low temperature, to solve lithium ion battery
The difficult problem of low temperature charging.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of lithium battery heat preserving method at low temperature, including
Step one：Intelligent temperature control system detect lithium battery environment temperature, and design temperature higher limit and lower limit；
Step 2：When the environment temperature of the lithium battery is less than the lower limit, the intelligent temperature control system is by electricity
The mode of heating is heated to the zone of heating of the lithium battery；When the environment temperature of the lithium battery reaches the higher limit, institute
Intelligent temperature control system is stated to stop, to the zone of heating heating of the lithium battery, making the temperature of the lithium battery be maintained at setting range
It is interior, realize the normal discharge and recharge under external environment low temperature.
Relative to prior art, lithium battery of the present invention heat preserving method at low temperature has the advantage that：
(1) lithium battery of the present invention heat preserving method at low temperature, lithium ion battery is made by electrically heated mode
Normal discharge and recharge can be at low temperature realized, the temperature limit of lithium battery is expanded, lithium ion battery low temperature is solved
Charge difficult problem.
Another object of the present invention is to propose a kind of lithium battery attemperator at low temperature, can be outside to provide one kind
Under boundary's low temperature environment, it is ensured that the attemperator of the normal discharge and recharge of lithium battery.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of lithium battery attemperator at low temperature, including lithium battery, insulating barrier, zone of heating, heat-insulation layer, shell and intelligence
Energy temperature control system, the outer surface of the lithium battery sets gradually the insulating barrier, the zone of heating, the heat-insulation layer from inside to outside
With the shell, control circuit of the intelligent temperature control system including temperature sensor and its connection, the temperature sensor peace
Mounted in zone of heating outside, the zone of heating is connected with the control circuit.
Further, the zone of heating is Graphene heating film.
Further, the temperature sensor is NTC temperature sensors, and its range is -40 DEG C~200 DEG C.
Further, the material of the insulating barrier is etch-proof engineering plastics.
Further, the material of the heat-insulation layer is inorganic isolating and heat-insulating material.
Further, the shell can be aluminium shell or plastic casing.
Further, the controllable temperature scope of the lithium battery is -20 DEG C~40 DEG C.
Further, the control circuit includes electromagnetic switch U1, voltage-stablizer U2 and operational amplifier U3, the control electricity
The input IN-L on road is respectively connecting to the VOUT ends of the voltage-stablizer U2, the first end of the electromagnetic switch U1, the electromagnetism
The second end for switching U1 is connected to the output end OUT-L of the control circuit, and the VIN ends of the voltage-stablizer are connected to through resistance R5
The negative input end of the operational amplifier U3, the negative input end of the operational amplifier U3 is connected after diode D1 and resistance R6
To the output end of the operational amplifier U3, the output end of the operational amplifier U3 is connected to the base stage of triode Q1, described
The grounded emitter of triode Q1, colelctor electrode is connected to the 4th end of the electromagnetic switch U1 after resistance R8, and the electromagnetism is opened
Connect a diode D2 between the 4th end and its 3rd end of closing U1, the three-terminal link of the electromagnetic switch U1 is to described steady
The VOUT ends of depressor U2；The positive input terminal of the operational amplifier U3 is connected to one end of the temperature sensor through resistance R3,
Resistance R1 is connected between the two ends of the temperature sensor.
Relative to prior art, lithium battery described in the utility model attemperator at low temperature has the advantage that：
(1) lithium battery described in the utility model attemperator at low temperature, the intelligent temperature control system of setting and heating
Layer, real-time detection and can regulate and control the interior environment temperature of lithium battery, enable lithium battery real at the relatively low temperature of external environment condition
Now normal charging/discharging function, expands and uses scope, enhances enterprise competitiveness.
(2) lithium battery described in the utility model attemperator at low temperature, zone of heating is Graphene heating film, stone
Black alkene has good electric conductivity, can uniformly be heated after energization, and the efficiency of heating surface is higher, while graphene film can be made
It is standby to be also applied for the heating of lithium ion battery of different shapes into arbitrary shape, it is applied widely, with very strong generalization.
Brief description of the drawings
The accompanying drawing for constituting a part of the invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate, for explaining the present invention, not constitute inappropriate limitation of the present invention.In the accompanying drawings：
The structural representation of attemperators of the Fig. 1 for the lithium battery described in the embodiment of the present invention at low temperature；
Fig. 2 is the schematic diagram of the attemperator top view described in the embodiment of the present invention；
Fig. 3 is the electric operation control circuit figure of the intelligent temperature control system described in the embodiment of the present invention.
Description of reference numerals：
1- lithium batteries；2- insulating barriers；3- zones of heating；4- heat-insulation layers；5- shells；6- intelligent temperature control systems；61- TEMPs
Device.
Specific embodiment
It should be noted that in the case where not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combination.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score,
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of and describes the present invention and simplify to describe, rather than instruction or dark
Showing the device or element of meaning must have specific orientation, with specific azimuth configuration and operation therefore it is not intended that right
Limitation of the invention.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating or implying phase
To importance or the implicit quantity for indicating indicated technical characteristic.Thus, the feature for defining " first ", " second " etc. can
To express or implicitly include one or more this feature.In the description of the invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
Two connections of element internal.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
A kind of lithium battery heat preserving method at low temperature, including
Step one：Intelligent temperature control system detect lithium battery environment temperature, and design temperature higher limit and lower limit；
Step 2：When the environment temperature of the lithium battery is less than the lower limit, the intelligent temperature control system is by electricity
The mode of heating is heated to the zone of heating of the lithium battery；When the environment temperature of the lithium battery reaches the higher limit, institute
Intelligent temperature control system is stated to stop, to the zone of heating heating of the lithium battery, making the temperature of the lithium battery be maintained at setting range
It is interior, realize the normal discharge and recharge under external environment low temperature.
A kind of lithium battery attemperator at low temperature, as shown in Figure 1 to Figure 3, including lithium battery 1, insulating barrier 2, heating
Layer 3, heat-insulation layer 4, shell 5 and intelligent temperature control system 6, the outer surface of the lithium battery 1 sets gradually the insulation from inside to outside
The layer 2, zone of heating 3, the heat-insulation layer 4 and the shell 5,
The intelligent temperature control system 6 includes the control circuit of temperature sensor 61 and its connection, the temperature sensor 61
Installed in the outside of the zone of heating 3, the zone of heating 3 is connected with the control circuit.
The zone of heating 3 is Graphene heating film, and Graphene has good electric conductivity, can uniformly add after energization
Heat, and the efficiency of heating surface is higher, i.e., firing rate is fast.Graphene film can be prepared into arbitrary shape, be also applied for different shape
Lithium ion battery heating.
The temperature sensor 61 is NTC temperature sensors, and its range is -40 DEG C~200 DEG C.
The material of the insulating barrier 2 is etch-proof engineering plastics, and such as fire retardation PC, rigidity is big, and creep is small, mechanical strength
Height, heat-resist, electrical insulating property is good, can for a long time be used in harsher chemistry, physical environment, long service life.
The material of the heat-insulation layer 4 is inorganic isolating and heat-insulating material, when insulation material greatly subtracts in battery charging process
The loss of few heat, the heat-insulation layer 4 not only has insulation effect, moreover it is possible to cushioning effect, preferably in protection lithium battery
Portion's structure.
The shell 5 can be aluminium shell or plastic casing, it is applied widely.
The controllable temperature scope of the lithium battery 1 is -20 DEG C~40 DEG C.
The control circuit includes electromagnetic switch U1, voltage-stablizer U2 and operational amplifier U3, the input of the control circuit
End IN-L is respectively connecting to the VOUT ends of the voltage-stablizer U2, the first end of the electromagnetic switch U1, the electromagnetic switch U1's
Second end is connected to the output end OUT-L of the control circuit, and the VIN ends of the voltage-stablizer are connected to the computing through resistance R5
The negative input end of amplifier U3, the negative input end of the operational amplifier U3 is connected to the fortune after diode D1 and resistance R6
The output end of amplifier U3 is calculated, the output end of the operational amplifier U3 is connected to the base stage of triode Q1, the triode Q1
Grounded emitter, colelctor electrode is connected to the 4th end of the electromagnetic switch U1, the of the electromagnetic switch U1 after resistance R8
A diode D2 is connected between four ends and its 3rd end, the three-terminal link of the electromagnetic switch U1 is to the voltage-stablizer U2's
VOUT ends；The positive input terminal of the operational amplifier U3 is connected to one end of the temperature sensor 61, the temperature through resistance R3
Spend connection resistance R1 between the two ends of sensor 61.
A kind of operation principle of lithium battery attemperator at low temperature is：
In charging process, light source of charger makes zone of heating 3 generate heat by controlling circuit, and temperature sensor 61 detects lithium
The environment temperature of battery 1, and real-time feedback information, intelligent temperature control system 6 make the environment temperature of lithium battery 1 maintain 10 DEG C~20
℃；When the environment temperature of lithium battery 1 is less than 10 DEG C, control circuit is connected, and zone of heating 3 begins to warm up, when temperature sensor 61
Detect the environment temperature of lithium battery 1 reach 20 DEG C when, control circuit disconnect, zone of heating 3 stop heating.Lithium battery 2 uses process
In, only when the environment temperature of lithium battery 1 is reduced to 10 DEG C, the control circuit of intelligent temperature control system 6 is connected, and starts zone of heating 3
Heating.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (8)
1. a kind of lithium battery attemperator at low temperature, it is characterised in that：Including lithium battery (1), insulating barrier (2), zone of heating
(3), heat-insulation layer (4), shell (5) and intelligent temperature control system (6),
The outer surface of the lithium battery (1) sets gradually the insulating barrier (2), the zone of heating (3), the insulation from inside to outside
Layer (4) and the shell (5),
Control circuit of the intelligent temperature control system (6) including temperature sensor (61) and its connection, the temperature sensor
(61) installed in the zone of heating (3) outside, the zone of heating (3) is connected with the control circuit.
2. a kind of lithium battery according to claim 1 attemperator at low temperature, it is characterised in that：The zone of heating
(3) it is Graphene heating film.
3. a kind of lithium battery according to claim 1 attemperator at low temperature, it is characterised in that：The TEMP
Device (61) is NTC temperature sensors, and its range is -40 DEG C~200 DEG C.
4. a kind of lithium battery according to claim 1 attemperator at low temperature, it is characterised in that：The insulating barrier
(2) material is etch-proof engineering plastics.
5. a kind of lithium battery according to claim 1 attemperator at low temperature, it is characterised in that：The heat-insulation layer
(4) material is inorganic isolating and heat-insulating material.
6. a kind of lithium battery according to claim 1 attemperator at low temperature, it is characterised in that：The shell (5)
Can be aluminium shell or plastic casing.
7. a kind of lithium battery according to claim 1 attemperator at low temperature, it is characterised in that：The lithium battery
(1) controllable temperature scope is -20 DEG C~40 DEG C.
8. a kind of lithium battery according to claim 1 attemperator at low temperature, it is characterised in that：The control circuit
Including electromagnetic switch U1, voltage-stablizer U2 and operational amplifier U3, the input IN-L of the control circuit is respectively connecting to described
The VOUT ends of voltage-stablizer U2, the first end of the electromagnetic switch U1, second end of the electromagnetic switch U1 is connected to the control
The output end OUT-L of circuit, the VIN ends of the voltage-stablizer are connected to the negative input end of the operational amplifier U3 through resistance R5,
The negative input end of the operational amplifier U3 is connected to the output end of the operational amplifier U3 after diode D1 and resistance R6,
The output end of the operational amplifier U3 is connected to the base stage of triode Q1, the grounded emitter of the triode Q1, colelctor electrode
The 4th end of the electromagnetic switch U1 is connected to after resistance R8, is connected between the 4th end and its 3rd end of the electromagnetic switch U1
Connect a three-terminal link of diode D2, the electromagnetic switch U1 to the VOUT ends of the voltage-stablizer U2；The operation amplifier
The positive input terminal of device U3 is connected to one end of the temperature sensor (61), the two ends of the temperature sensor (61) through resistance R3
Between connect resistance R1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621344358.7U CN206313098U (en) | 2016-12-08 | 2016-12-08 | A kind of lithium battery attemperator at low temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201621344358.7U CN206313098U (en) | 2016-12-08 | 2016-12-08 | A kind of lithium battery attemperator at low temperature |
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| CN206313098U true CN206313098U (en) | 2017-07-07 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106654463A (en) * | 2016-12-08 | 2017-05-10 | 天津宝坻紫荆创新研究院 | Heat preservation method and heat preservation device for lithium battery at low temperature |
| CN109659639A (en) * | 2018-12-25 | 2019-04-19 | 杭州珑亚珀伟科技有限公司 | Charging and discharging lithium battery attemperator and method |
| CN110400990A (en) * | 2019-07-11 | 2019-11-01 | Tcl华瑞照明科技（惠州）有限公司 | Battery temperature control method and battery temperature control circuit |
| CN111509323A (en) * | 2019-01-30 | 2020-08-07 | 雷达 | Graphene thermal management method for new energy automobile power battery |
-
2016
- 2016-12-08 CN CN201621344358.7U patent/CN206313098U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106654463A (en) * | 2016-12-08 | 2017-05-10 | 天津宝坻紫荆创新研究院 | Heat preservation method and heat preservation device for lithium battery at low temperature |
| CN109659639A (en) * | 2018-12-25 | 2019-04-19 | 杭州珑亚珀伟科技有限公司 | Charging and discharging lithium battery attemperator and method |
| CN109659639B (en) * | 2018-12-25 | 2020-09-25 | 张美容 | Lithium battery charging and discharging heat preservation device and method |
| CN111509323A (en) * | 2019-01-30 | 2020-08-07 | 雷达 | Graphene thermal management method for new energy automobile power battery |
| CN110400990A (en) * | 2019-07-11 | 2019-11-01 | Tcl华瑞照明科技（惠州）有限公司 | Battery temperature control method and battery temperature control circuit |
| CN110400990B (en) * | 2019-07-11 | 2022-01-11 | Tcl华瑞照明科技（惠州）有限公司 | Battery temperature control method and battery temperature control circuit |
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