CN202423516U - Lithium ion battery heating system - Google Patents
Lithium ion battery heating system Download PDFInfo
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- CN202423516U CN202423516U CN2012200271207U CN201220027120U CN202423516U CN 202423516 U CN202423516 U CN 202423516U CN 2012200271207 U CN2012200271207 U CN 2012200271207U CN 201220027120 U CN201220027120 U CN 201220027120U CN 202423516 U CN202423516 U CN 202423516U
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- battery
- lithium ion
- heated
- ion battery
- temperature
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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
Abstract
The utility model discloses a lithium ion battery heating system, which comprises electrothermal films, a power source, a relay, a temperature sensor and a battery management system. The power source, the relay and the electrothermal films form a current loop. The power source is independent from a battery to be heated. The temperature sensor is connected with the relay through the battery management system. The electrothermal films are attached on the surface of the battery to be heated so as to heat the same. The temperature sensor is arranged around the battery to be heated so as to detect temperature thereof. The battery management system controls on and off of the relay according to signals of temperature, measured by the temperature sensor, of the battery to be heated. The lithium ion battery heating system utilizes the independent power source as a heating power source rather than utilizes the battery to be heated, so that low-temperature charge or discharge of the battery to be heated is avoided, the battery can be heated uniformly, and no adverse affection on performance of the lithium ion battery is caused even when the lithium ion battery heating system is used for a long time. Further, problems that the lithium ion battery cannot be charged at a low temperature, has low discharge efficiency and the like are solved, and a guarantee for realizing long-term use of the lithium ion battery in a low-temperature environment is provided.
Description
Technical field
The utility model relates to lithium ion battery, especially a kind of lithium ion battery heating system.
Background technology
Lithium ion battery has that energy density is big, average output voltage is high, self discharge is little, does not have memory effect, cycle performance is superior, long service life and do not contain advantage such as poisonous harmful substance, therefore is widely used among notebook computer, mobile phone, PDA, new energy electric motor vehicle, electrical network energy storage, the UPS.
Though lithium ion battery has many good qualities, in practical application, some performance is still not ideal enough.For example, the energy of battery can not fully discharge in low temperature environment (0 ℃ or more low temperature under), and potential safety hazard is arranged during charging.But low temperature is a kind of universal phenomenon in northern China winter, and therefore improving the performance of lithium ion battery under low temperature environment becomes very urgent.
At present, solution to the problems described above mainly contains: 1) research and development are fit to the battery that low temperature uses down; 2) temperature of raising battery circumferential environment is worked under comparatively ideal temperature to guarantee battery, like high-temp liquid conduction heating, high temperature air heating, electrothermal film heating etc.But liquid heat desired structure relative complex also needs other thermal source; Air heat mode efficient is low, and needs to reserve air duct, and it is big to take volume; Paste the electrothermal film mode of heating have simple in structure, efficient is high, versatility good and advantage such as easy to assembly.For example, No. the 200920096318.9th, Chinese patent and one Chinese patent application have all proposed lithium ion battery group self-heating apparatus for CN200910185971.7 number, and it heats battery through silica gel heating line or the heating collar that is connected the battery pack two ends.
But these schemes all have following defective: the first needs the energy of consuming cells group, under the few situation of battery, is difficult to the temperature increase of battery to ideal state; Two to be batteries itself need discharge in heating for it; Not only there is the low temperature discharge problem; And heat inhomogeneous; Battery discharges under different parts temperature condition of different and can aggravate the imbalance of battery, all will cause adverse effect, improper long-term work to its capacity, life-span, self discharge energy, battery performance difference etc.
In view of this, necessary a kind of simple in structure and lithium ion battery heating system that battery is had no adverse effects is provided.
The utility model content
The purpose of the utility model is: a kind of simple in structure and lithium ion battery heating system that battery is had no adverse effects is provided.
In order to realize the foregoing invention purpose; The utility model provides a kind of lithium ion battery heating system; It comprises electrothermal film, power supply, relay, temperature sensor and battery management system, and power supply, relay and electrothermal film form current circuit, and power supply is and battery to be heated power supply independently mutually; Temperature sensor is connected with relay through battery management system; Electrothermal film is attached to battery surface to be heated and thinks its heating, and temperature sensor is placed on battery to be heated on every side to detect its temperature, and battery management system is closure and disconnection according to control relay with the measured battery temperature signal to be heated of temperature sensor.
As a kind of improvement of the utility model lithium ion battery heating system, said electrothermal film is a plurality of, is parallel connection, series connection or series-parallel connection each other.
As a kind of improvement of the utility model lithium ion battery heating system, said each electrothermal film all comprises the heater and the insulating barrier that wraps up heater in the middle of being positioned at.
As a kind of improvement of the utility model lithium ion battery heating system, the thickness of said electrothermal film is 0.2 ~ 1.0mm.
As a kind of improvement of the utility model lithium ion battery heating system, the power of said electrothermal film is 5 ~ 50W.
As a kind of improvement of the utility model lithium ion battery heating system, said power supply is direct current or alternating current.
Compared with prior art; The utility model lithium ion battery heating system is not used battery to be heated, and is to use independent current source as heating power supply, and therefore there are not the low temperature charge or discharge in battery to be heated; Can realize that battery evenly heats; The long-term use has no adverse effect to the lithium ion battery performance, solves problems such as not chargeable at low temperatures risk of lithium ion battery and discharging efficiency are low, for lithium ion battery provides safeguard medium-term and long-term use of low temperature environment.
Description of drawings
Below in conjunction with accompanying drawing and embodiment, the utility model lithium ion battery heating system and useful technique effect thereof are elaborated.
Fig. 1 is the structural representation of the utility model lithium ion battery heating system first execution mode.
Fig. 2 is the structural representation of the utility model lithium ion battery heating system second execution mode.
Embodiment
More clear for the goal of the invention, technical scheme and the useful technique effect that make the utility model, below in conjunction with accompanying drawing and embodiment, the utility model is further elaborated.Should be understood that each embodiment of describing in this specification only is in order to explain the utility model, is not in order to limit the utility model.
See also shown in Figure 1ly, the utility model lithium ion battery heating system first execution mode comprises electrothermal film 10, power supply 12, relay 14, temperature sensor 16 and battery management system (BMS) 18.Wherein, electrothermal film 10 is a plurality of for what be one another in series, and power supply 12, relay 14 form current circuit with electrothermal film 10, and 16 of temperature sensors pass through battery management system 18 and are connected with relay 14.
Electrothermal film 10 is used to be attached to battery surface and thinks its heating, and each electrothermal film 10 all comprises the heater and the insulating barrier that wraps up heater in the middle of being positioned at.Under the prerequisite that guarantees the insulating barrier insulation effect, electrothermal film 10 should be done thin as far as possible, and thickness is generally 0.2 ~ 1.0mm.Electrothermal film 10 can be worked under direct current or alternating current, and power then requires according to the size of battery to be heated and firing rate and different, is generally 5 ~ 50W.Fixing and its heat transfer efficiency of raising of electrothermal film 10 can glue double faced adhesive tape on the surface of electrothermal film 10 or battery to be heated earlier for ease, again electrothermal film 10 is pasted battery surface to be heated.
See also shown in Figure 2ly, in second execution mode of the utility model, battery diaphragm 10a can also adopt parallel-connection structure.
In addition, according to other execution modes of the utility model, battery diaphragm 10a can also adopt hybrid connected structure.
During assembling; Earlier electrothermal film 10,10a are attached on the surface of each battery to be heated; Link on the power supply 12 after again electrothermal film 10,10a being joined with the mode of parallel connection, series connection or series-parallel connection, and on the circuit of electrothermal film 10,10a and power supply 12, connect relay 14.Afterwards, temperature sensor 16 is positioned over the periphery of battery to be heated, and temperature sensor 16 and relay 14 are connected in battery management system 18.
During use; The temperature signal of the battery to be heated that temperature sensor 16 will be sensed sends battery management system 18 to; Battery management system 18 is according to battery temperature control relay 14: if battery temperature is lower than set point (as 0 ℃), then that relay 14 is closed and connect circuit, electrothermal film 10,10a begin heating; Battery absorbs heat, and temperature raises gradually; When battery temperature was elevated to another set point (as 20 ℃), battery management system 18 broke off relay 14 according to the signal that temperature sensor 16 transmits, and electrothermal film 10,10a quit work.In order to make battery temperature more even, after electrothermal film 10, the 10a outage, battery need be had a rest after a scheduled time (as 5 minutes), just can carry out charge or discharge.
In sum, the utility model lithium ion battery heating system is not used battery to be heated and is to use independent current source as heating power supply, and therefore there is not low temperature discharge in battery to be heated, heats problems such as inhomogeneous, uses for a long time battery performance is had no adverse effect; And electrothermal film has high conformity, characteristics that heat transfer efficiency is high, but the fast lifting battery temperature, and battery is heated evenly, guarantees that battery (group) temperature contrast after the heating is little.Therefore; The utility model can guarantee that battery discharges and recharges under comparatively ideal temperature; Effectively improve the security performance of battery; Prolong the useful life of battery (group), solve problems such as not chargeable at low temperatures risk of lithium ion battery and discharging efficiency are low, provide safeguard for lithium ion battery uses for a long time at low temperatures.
According to the announcement and the instruction of above-mentioned specification, the utility model those skilled in the art can also carry out suitable change and modification to above-mentioned execution mode.Therefore, the embodiment that discloses and describe above the utility model is not limited to is in the protection range of the claim that also should fall into the utility model to some modifications and the change of the utility model.In addition, although used some specific terms in this specification, these terms are explanation for ease just, the utility model is not constituted any restriction.
Claims (6)
1. lithium ion battery heating system; It is characterized in that: comprise electrothermal film, power supply, relay, temperature sensor and battery management system; Power supply, relay and electrothermal film form current circuit, and power supply be and battery to be heated power supply independently mutually that relay is used to cut off or connect the circuit that electrothermal film belongs to; Temperature sensor is connected with relay through battery management system; Electrothermal film is attached to battery surface to be heated and thinks its heating, and temperature sensor is placed on battery to be heated on every side to detect its temperature, and battery management system is closure and disconnection according to control relay with the measured battery temperature signal to be heated of temperature sensor.
2. lithium ion battery heating system according to claim 1 is characterized in that: said electrothermal film is a plurality of, is parallel connection, series connection or series-parallel connection each other.
3. lithium ion battery heating system according to claim 2 is characterized in that: said each electrothermal film all comprises the heater and the insulating barrier that wraps up heater in the middle of being positioned at.
4. according to claim 1,2 or 3 described lithium ion battery heating systems, it is characterized in that: the thickness of said electrothermal film is 0.2 ~ 1.0mm.
5. according to claim 1,2 or 3 described lithium ion battery heating systems, it is characterized in that: the power of said electrothermal film is 5 ~ 50W.
6. according to claim 1,2 or 3 described lithium ion battery heating systems, it is characterized in that: said power supply is direct current or alternating current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200271207U CN202423516U (en) | 2012-01-20 | 2012-01-20 | Lithium ion battery heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200271207U CN202423516U (en) | 2012-01-20 | 2012-01-20 | Lithium ion battery heating system |
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| CN202423516U true CN202423516U (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012200271207U Expired - Lifetime CN202423516U (en) | 2012-01-20 | 2012-01-20 | Lithium ion battery heating system |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490119A (en) * | 2013-01-23 | 2014-01-01 | 深圳市巨星科技有限公司 | Lithium battery heating mechanism in low-temperature environment |
| CN104347911A (en) * | 2014-09-05 | 2015-02-11 | 哈尔滨工业大学 | Cold-heat control system of power lithium ion battery unit and control method |
| CN105633506A (en) * | 2016-03-04 | 2016-06-01 | 宁德时代新能源科技股份有限公司 | Battery heating system |
| CN105870542A (en) * | 2016-06-13 | 2016-08-17 | 重庆长安汽车股份有限公司 | Power battery low-temperature charging heating system |
| CN106025441A (en) * | 2016-07-01 | 2016-10-12 | 北京哈工机器人有限公司 | Battery protection system for intelligent cleaning robot |
| CN106099253A (en) * | 2016-08-01 | 2016-11-09 | 浙江大铭新材料股份有限公司 | A kind of energy-saving heating apparatus for lithium battery group |
| CN106299547A (en) * | 2016-09-07 | 2017-01-04 | 中国北方车辆研究所 | Lithium-ions battery power supply automatic equalization heating system and heating method |
| CN106374168A (en) * | 2016-11-17 | 2017-02-01 | 宁德时代新能源科技股份有限公司 | Heating device and method |
| CN106532190A (en) * | 2016-12-09 | 2017-03-22 | 厦门华戎能源科技有限公司 | Rapid heating battery |
| CN106532189A (en) * | 2016-12-09 | 2017-03-22 | 厦门华戎能源科技有限公司 | Nano carbon crystal heating battery |
| WO2017107481A1 (en) * | 2015-12-25 | 2017-06-29 | 中兴通讯股份有限公司 | Terminal and terminal heating method |
| CN114335815A (en) * | 2022-01-04 | 2022-04-12 | 贵州梅岭电源有限公司 | Heating method of lithium ion battery pack |
-
2012
- 2012-01-20 CN CN2012200271207U patent/CN202423516U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490119A (en) * | 2013-01-23 | 2014-01-01 | 深圳市巨星科技有限公司 | Lithium battery heating mechanism in low-temperature environment |
| CN104347911A (en) * | 2014-09-05 | 2015-02-11 | 哈尔滨工业大学 | Cold-heat control system of power lithium ion battery unit and control method |
| WO2017107481A1 (en) * | 2015-12-25 | 2017-06-29 | 中兴通讯股份有限公司 | Terminal and terminal heating method |
| CN105633506A (en) * | 2016-03-04 | 2016-06-01 | 宁德时代新能源科技股份有限公司 | Battery heating system |
| US10297884B2 (en) | 2016-03-04 | 2019-05-21 | Contemporary Amperex Technology Co., Limited | Battery heating system |
| CN105870542A (en) * | 2016-06-13 | 2016-08-17 | 重庆长安汽车股份有限公司 | Power battery low-temperature charging heating system |
| CN106025441A (en) * | 2016-07-01 | 2016-10-12 | 北京哈工机器人有限公司 | Battery protection system for intelligent cleaning robot |
| CN106099253A (en) * | 2016-08-01 | 2016-11-09 | 浙江大铭新材料股份有限公司 | A kind of energy-saving heating apparatus for lithium battery group |
| CN106299547A (en) * | 2016-09-07 | 2017-01-04 | 中国北方车辆研究所 | Lithium-ions battery power supply automatic equalization heating system and heating method |
| CN106299547B (en) * | 2016-09-07 | 2019-04-12 | 中国北方车辆研究所 | Lithium-ions battery power supply automatic equalization heating system and heating method |
| CN106374168A (en) * | 2016-11-17 | 2017-02-01 | 宁德时代新能源科技股份有限公司 | Heating device and method |
| CN106532189A (en) * | 2016-12-09 | 2017-03-22 | 厦门华戎能源科技有限公司 | Nano carbon crystal heating battery |
| CN106532190A (en) * | 2016-12-09 | 2017-03-22 | 厦门华戎能源科技有限公司 | Rapid heating battery |
| CN114335815A (en) * | 2022-01-04 | 2022-04-12 | 贵州梅岭电源有限公司 | Heating method of lithium ion battery pack |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |