CN206134886U - Lithium cell module with low temperature preheats function - Google Patents
Lithium cell module with low temperature preheats function Download PDFInfo
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- CN206134886U CN206134886U CN201621214831.XU CN201621214831U CN206134886U CN 206134886 U CN206134886 U CN 206134886U CN 201621214831 U CN201621214831 U CN 201621214831U CN 206134886 U CN206134886 U CN 206134886U
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- Prior art keywords
- lithium cell
- special
- lithium battery
- low temperature
- protection circuit
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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 discloses a lithium cell module with low temperature preheats function relates to a portable power source equipment, concretely relates to lithium cell module with low temperature preheats function, and characterized by: the centre of battery module is the lithium cell cluster, and the top of lithium cell cluster is equipped with super capacitor, and the side of lithium cell cluster is equipped with the control box, and the below of lithium cell cluster is equipped with the heat -conducting metal board, is equipped with the protection circuit in the control box, equipped with a plurality of special ni4H on the protection circuit the siC diode, special ni4H the siC diode is connected with the heat -conducting metal board, the utility model provides a compensate lithium cell low temperature characteristics's defect, improve control section's reliability, reduce cost, reduce the group battery the volume, reduce the line loss and save the energy consumption that the initiative is preheated.
Description
Technical field
This utility model is related to technical field of lithium batteries, the low-temperature prewarming technology of more particularly to a kind of lithium battery.
Background technology
Lithium ion battery has the advantages that energy density is high, has extended cycle life, self-discharge rate is low, memory-less effect, with lead
Sour battery, Ni-MH battery are compared, more preferably as the main drive of pure electric automobile, plug-in electromobile and hybrid vehicle
Galvanic electricity source, is also the main energy-storage travelling wave tube such as mobile phone, notebook computer.Graphite is because with current potential is low, capacity density is big, irreversible
Capacity is little, low cost and other advantages, is the most frequently used negative material of current lithium ion battery.However, at low temperature, graphite cathode lithium
All kinds of impedances in ion battery inside are significantly increased, and the use of lithium ion battery has difficulties.Further, since there is analysis lithium hidden danger,
Battery charge acceptance more deteriorates.If carrying out low temperature charging in unreasonable mode, it is easily caused on graphite cathode and separates out gold
Category lithium, the capacity attenuation and life-span for not only causing battery is lost, it is also possible to continued propagation, forms dendrite, and then punctures barrier film, makes
Into short circuit, cause the security incidents with serious harm such as thermal runaway.Additionally, temperature is reduced, the electric discharge of lithium ion battery
Also can significantly deteriorate, discharge capacity is present largely to be reduced.
Problem is used currently for the low temperature of battery, a kind of way of correlation technique is to improve electrokinetic cell system insulation
On the premise of property, battery is preheated using the method for external heat, make battery temperature rise to room temperature or more than 10 DEG C, it
Battery is used afterwards or DC charging.Although but this method can be charged and be used with battery under effectively solving low temperature
Problem, but still suffer from that the used time is longer, it is uneven to heat, scaling loss of easily striking sparks, power consumption are big, the shortcoming of high cost.
The content of the invention
A kind of lithium battery module with low-temperature prewarming function of this utility model, using the unidirectional contactless conducting of diode,
The heat produced during ingenious utilization diode operation goes pre- thermobattery, makes up the defect of lithium battery low-temperature characteristics, improves control
Partial reliability, reduces cost, reduces the volume of set of cells, reduces line loss and saves the energy expenditure of actively preheating.
To reach a kind of lithium battery module with low-temperature prewarming function of object above, include battery modules and low temperature is pre-
Heater circuit, the centre of described battery modules is lithium battery string 1, and the top of lithium battery string 1 is provided with super capacitor 2, lithium battery string 1
Side be provided with control box 3, the lower section of lithium battery string 1 is provided with thermal conductive metal plate 4, control box 3 and is provided with protection circuit 5, protects
Circuit 5 is provided with multiple special Ni/4H-SiC diodes 6, and described special Ni/4H-SiC diodes 6 connect with thermal conductive metal plate 4
Connect.
Design circuit using the unidirectional contactless conducting of diode, and the heat produced during ingenious utilization diode operation go it is pre-
It is thermobattery, make up the defect of lithium battery low-temperature characteristics.
The technical scheme of actual above-mentioned purpose utility model is most simple charging and discharging circuit to be adopted, from special Ni/4H-
SiC diodes and thermal conductive metal plate, special Ni/4H-SiC diodes satisfaction bears 500A electric currents in charge circuit energy moment, holds
Continuous 200A electric currents, in discharge loop energy moment 1500A electric currents are born, and persistently bear 700A electric currents, and the switch in circuit is with special
Ni/4H-SiC diodes are completed, and realize contactless conducting, while the radiator portion of special Ni/4H-SiC diodes is fixed
On the good metallic plate of heat conduction, the heat Jing metallic plates produced during special Ni/4H-SiC diode operations conduct and are diffused into electricity
Chi Shang, realizes the preheating function in low temperature to lithium battery group.
Battery pack control circuit is made using the technical solution of the utility model, circuit is simplified, reduces cost, raising control
The reliability of part processed, contactless replacement has contact, and set of cells volume has reduced, and reduces line loss and saves actively preheating
Energy expenditure, improve lithium battery characteristic defective at low ambient temperatures.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is this utility model circuit theory diagrams.
Specific embodiment
As shown in Figure 1-2, a kind of lithium battery module with low-temperature prewarming function, includes battery modules and low-temperature prewarming
Circuit, the centre of described battery modules is lithium battery string 1, and the top of lithium battery string 1 is provided with super capacitor 2, lithium battery string 1
Side is provided with control box 3, and the lower section of lithium battery string 1 is provided with thermal conductive metal plate 4, control box 3 and is provided with protection circuit 5, protection electricity
Road 5 is provided with multiple special Ni/4H-SiC diodes 6, and described special Ni/4H-SiC diodes 6 connect with thermal conductive metal plate 4
Connect.
The negative pole connection protection circuit 5 of described lithium battery string 1, protection circuit connects special Ni/4H-SiC diodes D1
Positive pole and special Ni/4H-SiC diodes D2, D3, D4 negative pole, the negative pole of described special Ni/4H-SiC diodes D1 and
Then the negative pole of the positive pole connection super capacitor 2 of special Ni/4H-SiC diodes D2, D3, D4 reconnects output negative pole, lithium battery
Then the positive pole of the positive pole connection super capacitor 2 of string 1 connects output cathode.
Design circuit using the unidirectional contactless conducting of diode, and the heat produced during ingenious utilization diode operation go it is pre-
It is thermobattery, make up the defect of lithium battery low-temperature characteristics.
The technical scheme of actual above-mentioned purpose utility model is most simple charging and discharging circuit to be adopted, from special Ni/4H-
SiC diodes and thermal conductive metal plate, special Ni/4H-SiC diodes satisfaction bears 500A electric currents in charge circuit energy moment, holds
Continuous 200A electric currents, in discharge loop energy moment 1500A electric currents are born, and persistently bear 700A electric currents, and the switch in circuit is with special
Ni/4H-SiC diodes are completed, and realize contactless conducting, while the radiator portion of special Ni/4H-SiC diodes is fixed
On the good metallic plate of heat conduction, the heat Jing metallic plates produced during special Ni/4H-SiC diode operations conduct and are diffused into electricity
Chi Shang, realizes the preheating function in low temperature to lithium battery group.
Battery pack control circuit is made using the technical solution of the utility model, circuit is simplified, reduces cost improves control
The reliability of part processed, contactless replacement has contact, and set of cells volume has reduced, and reduces line loss and saves actively preheating
Energy expenditure, improve lithium battery characteristic defective at low ambient temperatures.
Claims (2)
1. a kind of lithium battery module with low-temperature prewarming function, is characterized in that：Battery modules and low-temperature prewarming circuit are included,
The centre of described battery modules is lithium battery string（1）, lithium battery string（1）Top be provided with super capacitor（2）, lithium battery string
（1）Side be provided with control box（3）, lithium battery string（1）Lower section be provided with thermal conductive metal plate（4）, control box（3）Inside it is provided with protection
Circuit（5）, protection circuit（5）It is provided with multiple special Ni/4H-SiC diodes（6）, described special Ni/4H-SiC diodes
（6）With thermal conductive metal plate（4）Connection.
2. a kind of lithium battery module with low-temperature prewarming function according to claim 1, it is characterised in that：Described lithium
Battery strings（1）Negative pole connection protection circuit（5）, protection circuit connects the positive pole of special Ni/4H-SiC diodes D1 and special
The negative pole of Ni/4H-SiC diode D2, D3, D4, the negative pole and special Ni/4H- of described special Ni/4H-SiC diodes D1
The positive pole connection super capacitor of SiC diode D2, D3, D4（2）Negative pole then reconnect output negative pole, lithium battery string（1）'s
Positive pole connects super capacitor（2）Positive pole then connect output cathode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621214831.XU CN206134886U (en) | 2016-11-11 | 2016-11-11 | Lithium cell module with low temperature preheats function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621214831.XU CN206134886U (en) | 2016-11-11 | 2016-11-11 | Lithium cell module with low temperature preheats function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206134886U true CN206134886U (en) | 2017-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621214831.XU Active CN206134886U (en) | 2016-11-11 | 2016-11-11 | Lithium cell module with low temperature preheats function |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108075208A (en) * | 2016-11-11 | 2018-05-25 | 佛山市欣源电子股份有限公司 | A kind of lithium battery module with low-temperature prewarming |
-
2016
- 2016-11-11 CN CN201621214831.XU patent/CN206134886U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108075208A (en) * | 2016-11-11 | 2018-05-25 | 佛山市欣源电子股份有限公司 | A kind of lithium battery module with low-temperature prewarming |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A kind of lithium battery module with low-temperature prewarming Effective date of registration: 20180629 Granted publication date: 20170426 Pledgee: Guangdong Nanhai rural commercial bank Limited by Share Ltd. Xiqiao branch Pledgor: FOSHAN CITY XINYUAN ELECTRONICS Co.,Ltd. Registration number: 2018440000180 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220817 Granted publication date: 20170426 Pledgee: Guangdong Nanhai rural commercial bank Limited by Share Ltd. Xiqiao branch Pledgor: FOSHAN CITY XINYUAN ELECTRONICS Co.,Ltd. Registration number: 2018440000180 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |