CN202651311U - Heating device for battery - Google Patents
Heating device for battery Download PDFInfo
- Publication number
- CN202651311U CN202651311U CN 201220254377 CN201220254377U CN202651311U CN 202651311 U CN202651311 U CN 202651311U CN 201220254377 CN201220254377 CN 201220254377 CN 201220254377 U CN201220254377 U CN 201220254377U CN 202651311 U CN202651311 U CN 202651311U
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- CN
- China
- Prior art keywords
- battery
- switch
- heater
- charged
- heating film
- Prior art date
- 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.)
- Expired - Lifetime
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- Y02E60/12—
Abstract
The utility model provides a heating device for a battery, which at least comprises a heating film, a first switch connected with the heating film, and a second switch connected with a to-be-charged battery wrapped by the heating film, and the first switch and the second switch are not synchronously conducted. According to the utility model, during the process of charging the battery, the battery is heated by the heating film and then is charged, therefore, the activity of the interior of the battery is improved, battery polarization and lithium evolution are reduced, the charging safety of the battery is ensured under a low temperature environment, and the circulation service life of the battery is prolonged.
Description
Technical field
The utility model relates to field of batteries, particularly a kind of heater for battery.
Background technology
Temperature is the key factor that affects cycle life of lithium ion battery and security performance.In charging process, if when temperature is lower than zero degree, the lithium phenomenon can be analysed in the negative material surface, and this will have a strong impact on the security performance of battery; In addition, temperature is low, also can reduce the inside battery activity, increases the polarization of battery.
Therefore, the temperature in the time of need to be to the charging of battery is controlled.
The utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of heater for battery, so that battery its surface energy before charging obtains homogeneous heating, improves the activity of inside battery.
Reach for achieving the above object other relevant purposes, the utility model provides a kind of heater for battery, and it comprises at least:
Heating film;
The first switch that is connected with described heating film;
Be used for wrapping up in the second switch that attached battery to be charged is connected with described heating film, and described the first switch and not simultaneously conducting of second switch after the energising.
Preferably, described heating film is formed by heater strip coating silica gel.
Preferably, described the first switch comprises the temperature detect switch (TDS) that the temperature based on the described battery to be charged of sensing opens and closes.
Preferably, described second switch comprises the temperature detect switch (TDS) that the temperature based on the described battery to be charged of sensing opens and closes.
As mentioned above, the heater for battery of the present utility model has following beneficial effect; Before battery charging process, make battery surface obtain homogeneous heating, to improve the activity of inside battery, reduce battery polarization and analyse the fail safe that lithium improves battery, prolong battery cycle life.
Description of drawings
Fig. 1 is shown as the circuit diagram that is connected with power supply for the heater of battery of the present utility model.
Embodiment
Below by particular specific embodiment execution mode of the present utility model is described, person skilled in the art scholar can understand other advantages of the present utility model and effect easily by the disclosed content of this specification.
Notice, the appended graphic structure that illustrates of this specification, ratio, size etc., equal contents in order to cooperate specification to disclose only, understand and reading for person skilled in the art scholar, be not to limit the enforceable qualifications of the utility model, so technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under the effect that the utility model can produce and the purpose that can reach, all should still drop on the technology contents that the utility model discloses and get in the scope that can contain.Simultaneously, quote in this specification as " on ", D score, " left side ", " right side ", " centre " reach the term of " " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under without essence change technology contents, when also being considered as the enforceable category of the utility model.
As shown in the figure, the utility model provides a kind of heater for battery.Described heater comprises: heating film, the first switch S 1, and second switch S2.
Described heating film is used for wrapping up in attached battery to be charged, and it can adopt the material that can conduct electricity to prepare formation, and preferably, it can be coated with silica gel by heater strip and form etc.Wherein, described battery to be charged comprises single battery or the battery pack that is made of a plurality of batteries etc.
Described the first switch connects described heating film, be used for closure when described heating film is wrapped up in attached battery temperature to be charged and is lower than predetermined temperature, so that described heating film is communicated with power supply, give described heating film heating by power supply, and then improve this battery temperature to be charged, and when being higher than described predetermined temperature, this battery temperature to be charged disconnects being connected of described heating film and power supply.
Preferably, described the first switch comprises the temperature detect switch (TDS) that the temperature based on the described battery to be charged of sensing opens and closes, for example, and expansion of metal formula temperature detect switch (TDS) etc.
Described second switch is used for wrapping up in attached battery to be charged with described heating film and is connected, and described the first switch and not simultaneously conducting of second switch.Described heating film is wrapped up in attached battery to be charged and is connected with power supply by this second switch, so that charging.
Preferably, described second switch also comprises the temperature detect switch (TDS) that the temperature based on the described battery to be charged of sensing opens and closes, for example, and expansion of metal formula temperature detect switch (TDS) etc.
As a kind of optimal way; described heater also comprises the protective circuit in the loop that is connected to described battery to be charged, second switch and electric power generating composition; when with convenient power supply described battery to be charged being charged, can prevent because of overcurrent etc. to infringement of described battery to be charged etc.
The using method of described heater is as follows:
Wrap up in battery to be charged attached described heating film first; described heating film is connected with power supply by described the first switch S 1; and with described battery to be charged by second switch S2; protective circuit is connected with described power supply; when described battery surface temperature to be charged is lower than predetermined temperature; described the first switch S 1 closure; described second switch S2 disconnects; heating film is started working; even distribute heat; when described battery surface temperature to be charged reaches predetermined temperature, described the first switch S 1 disconnects, and described second switch S2 is closed; the heating film stopped heating, power supply is to described battery charging to be charged.In charging process, described battery to be charged produces heat, is not less than predetermined temperature so described battery surface temperature to be charged can maintain.Wherein, predetermined temperature can preset, usually can be between 0-40 ℃, and preferable range is 10-30 ℃.
Need to prove, it should be appreciated by those skilled in the art that the only circuit connection diagram of each device of comprising of heater just of Fig. 1, but not heater practical structures schematic diagram.
Below will describe by two specific embodiments the process of heater of the present invention in detail.
Embodiment 1: the automobile-used 48V10Ah lithium ion battery of electrical salf-walking group, positive active material is nickle cobalt lithium manganate, negative active core-shell material is graphite, and the heating film of heater is wrapped up in attached this lithium ion battery group, and is 10 ℃ with the Temperature Setting of temperature detect switch (TDS), when temperature is lower than 10 ℃, the first switch S 1 closure, second switch S2 disconnects, and temperature is above 10 ℃, the first switch S 1 disconnects, and second switch S2 is closed.When the lithium ion battery group connects power source charges; lithium ion battery group surface temperature is-3 ℃; the first switch S 1 closure then; second switch S2 disconnects, and the heating film heating of starting working is when temperature reaches 10 ℃; the first switch S 1 disconnects; second switch S2 is closed, and protective circuit is started working, the charging of lithium ion battery group.By the use of this device, lithium ion battery group charge efficiency is 95%, through 50 circulations, takes out wherein battery dissection and analysis, and the battery cathode surface is without obviously analysing the lithium phenomenon.And do not have a battery pack of heater, battery charge efficiency only be 71%, through 50 circulations, take out wherein battery dissection and analysis, there is the serious lithium phenomenon of analysing in negative terminal surface.
Embodiment 2, for a 3.5Ah IMR-26650 column lithium ion battery, its positive active material is nickle cobalt lithium manganate, and negative active core-shell material is graphite, the heating film of heater is wrapped up in attached this column lithium ion battery, the Temperature Setting of temperature detect switch (TDS) is 25 ℃, and temperature is lower than 25 ℃, the first switch S 1 closure, second switch S2 disconnects, temperature surpasses 25 ℃, and the first switch S 1 disconnects, and second switch S2 is closed.Be to carry out the charge and discharge cycles test under 5-15 ℃ the environment in room temperature when this column lithium ion battery.Through 500 circulations, the battery capacity conservation rate that heater is arranged is 96%, is 91% without the battery capacity conservation rate of heater.Heater of the present invention has improved the cycle life of battery.
In sum, the heater for battery of the present utility model makes battery surface obtain homogeneous heating at battery charging process, has improved the activity of inside battery, reduces battery polarization and analyses lithium, has improved the fail safe of battery, the cycle life that prolonged battery.The utility model does not relate to the manufacture craft of inside battery, and implementing process is simple, has high industrial utilization.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not is used for restriction the utility model.Any person skilled in the art scholar all can be under spirit of the present utility model and category, and above-described embodiment is modified or changed.Therefore, have in the technical field under such as and know that usually the knowledgeable modifies or changes not breaking away from all equivalences of finishing under spirit that the utility model discloses and the technological thought, must be contained by claim of the present utility model.
Claims (6)
1. but a heater that is used for battery is characterized in that, but described heater for battery comprises at least:
Heating film;
The first switch that is connected with described heating film;
Be used for wrapping up in the second switch that attached battery to be charged is connected with described heating film, and described the first switch and not simultaneously conducting of second switch.
2. but the heater for battery according to claim 1 is characterized in that, described heating film is formed by heater strip coating silica gel.
3. but the heater for battery according to claim 1 is characterized in that: described the first switch comprises the temperature detect switch (TDS) that the temperature based on the described battery to be charged of sensing opens and closes.
4. but the heater for battery according to claim 1 is characterized in that: described second switch comprises the temperature detect switch (TDS) that the temperature based on the described battery to be charged of sensing opens and closes.
5. but the heater for battery according to claim 1 characterized by further comprising: be connected to the protective circuit in the loop of described battery to be charged, second switch and electric power generating composition.
6. but the heater for battery according to claim 1 is characterized in that: described battery to be charged comprises the battery pack that a plurality of batteries consist of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220254377 CN202651311U (en) | 2012-05-31 | 2012-05-31 | Heating device for battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220254377 CN202651311U (en) | 2012-05-31 | 2012-05-31 | Heating device for battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202651311U true CN202651311U (en) | 2013-01-02 |
Family
ID=47420366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220254377 Expired - Lifetime CN202651311U (en) | 2012-05-31 | 2012-05-31 | Heating device for battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202651311U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103129591A (en) * | 2013-02-22 | 2013-06-05 | 江苏省电力公司检修分公司 | Multifunctional SF6 inflating trolley |
| CN105449313A (en) * | 2015-12-25 | 2016-03-30 | 北京新能源汽车股份有限公司 | Heating element for power battery |
| CN106960987A (en) * | 2017-04-05 | 2017-07-18 | 孔祥贵 | It is a kind of to balance cold and hot temperature control storage pond |
| CN108701874A (en) * | 2016-05-11 | 2018-10-23 | 宝马股份公司 | Heatable accumulator |
-
2012
- 2012-05-31 CN CN 201220254377 patent/CN202651311U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103129591A (en) * | 2013-02-22 | 2013-06-05 | 江苏省电力公司检修分公司 | Multifunctional SF6 inflating trolley |
| CN105449313A (en) * | 2015-12-25 | 2016-03-30 | 北京新能源汽车股份有限公司 | Heating element for power battery |
| CN105449313B (en) * | 2015-12-25 | 2018-09-11 | 北京新能源汽车股份有限公司 | Heating component for power battery |
| CN108701874A (en) * | 2016-05-11 | 2018-10-23 | 宝马股份公司 | Heatable accumulator |
| CN106960987A (en) * | 2017-04-05 | 2017-07-18 | 孔祥贵 | It is a kind of to balance cold and hot temperature control storage pond |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170103 Address after: 215000 Suzhou Industrial Park, Jiangsu new road, No. two, southeast corner of the layer of 28 Patentee after: Suzhou GCL Energy Technology Development Co Ltd Address before: 224007 Yancheng City Economic Development Zone Yancheng economic and Technological Development Zone, Songjiang Road, room 18, No. 823, room Patentee before: New materials (Yancheng) Co., Ltd. GCL power |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |
|
| CX01 | Expiry of patent term |