CN114094217A - Power supply module and thermal runaway alarm system - Google Patents
Power supply module and thermal runaway alarm system Download PDFInfo
- Publication number
- CN114094217A CN114094217A CN202111264801.5A CN202111264801A CN114094217A CN 114094217 A CN114094217 A CN 114094217A CN 202111264801 A CN202111264801 A CN 202111264801A CN 114094217 A CN114094217 A CN 114094217A
- Authority
- CN
- China
- Prior art keywords
- battery
- early warning
- power supply
- resistor
- circuit
- 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.)
- Pending
Links
Images
Classifications
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The application relates to a power module and thermal runaway alarm system, power module includes: the battery cell is used for providing electric quantity; the switch unit is used for acquiring the heating information of the battery core and changing the switch state, and is arranged on the battery core; a line connected with the switching unit; and the early warning resistor is used for calibrating the resistance value and is connected with the circuit in series. The present application has the following effects: the resistance of the early warning resistor is monitored through the battery management module so as to carry out thermal runaway early warning, and the early warning circuit is not required to be additionally externally connected with a power module such as a storage battery, so that the investment and the use of the extra power module are reduced, the electric connection between the power module and the battery management module is avoided, a simpler wiring mode is realized, and the cost is reduced.
Description
Technical Field
The application relates to the technical field of batteries, in particular to a power supply module and a thermal runaway alarm system.
Background
The thermal safety problem of the power battery is a serious difficulty in the development process of the new energy industry. During the use process of the power battery, thermal runaway, even fire, explosion and the like can be caused by various reasons such as overcharge, short circuit, high temperature and the like. Therefore, the power battery needs to be provided with a thermal runaway alarm system so that a user can conveniently escape in enough time when an unexpected situation occurs. However, in the related art, the thermal runaway alarm function of the power battery is unstable, and the possibility of no alarm or false alarm exists; or the cost is high, and the popularization and the use are difficult.
Disclosure of Invention
In order to reduce alarm system's cost when guaranteeing that thermal runaway alarm function is reliable and stable, this application provides a power module and thermal runaway alarm system.
The application provides a power module and thermal runaway alarm system adopts following technical scheme:
a power supply module, the power supply module comprising:
the battery cell is used for providing electric quantity;
the switch unit is used for acquiring the heating information of the battery core and changing the switch state, and is arranged on the battery core;
a line connected with the switching unit;
and the early warning resistor is used for calibrating the resistance value and is connected with the circuit in series.
Optionally, the switch unit is a pressure relief valve, and the pressure relief valve includes a valve for acquiring the battery core heating information and generating displacement change.
Optionally, one end of the pressure release valve is connected with the battery cell, and the other end of the pressure release valve is connected with the circuit.
Optionally, one end of the pressure release valve is connected with the battery cell, and the circuit is at least connected to one side of the pressure release valve.
Optionally, the extending direction of the line is a first direction, the extending direction of the alarm module is a second direction, and the first direction is parallel to the second direction.
Optionally, the extending direction of the line is a first direction, the extending direction of the alarm module is a second direction, and the first direction and the second direction intersect.
Optionally, the line is arranged around the pressure relief valve.
A thermal runaway alarm system, comprising:
a power supply module;
and the battery management module is respectively connected with the circuit and the early warning resistor in series.
Optionally, at least two of the battery cells are arranged;
the switch units correspond to the battery cores one to one.
Optionally, the circuit and the early warning resistor are in one-to-one correspondence with the battery core, and the circuit and the early warning resistor on each battery core are respectively connected in series with the battery management module.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the battery management module is used for monitoring the resistance value of the early warning resistor to perform thermal runaway early warning, and a power module such as a storage battery is not required to be additionally connected in an early warning loop, so that the investment and use of the additional power module are reduced, the electrical connection between the power module and the battery management module is avoided, a simpler wiring mode is realized, and the cost is reduced;
2. the thermal runaway early warning method is characterized in that the resistance value of the resistor is monitored, and compared with a current signal and a voltage signal, the resistance value is not easily interfered by an external environment, and the early warning function is stable and reliable;
3. the battery management module is used for monitoring the resistance value of the early warning resistor on each battery cell, so that the battery cells with abnormal heating in the battery module can be quickly positioned while thermal runaway early warning is realized; and on the basis of this, so as to take emergency measures against thermal runaway of the battery module in time.
Drawings
FIG. 1 is a schematic structural diagram of a thermal runaway alarm system provided in embodiment 1 of the present application;
fig. 2 is a schematic structural diagram of a power supply module provided in embodiment 1 of the present application;
FIG. 3 is a schematic diagram of a thermal runaway alarm system provided in accordance with another embodiment of the present application;
FIG. 4 is a schematic structural diagram of a thermal runaway alarm system provided in embodiment 2 of the present application;
fig. 5 is a schematic structural diagram of a thermal runaway alarm system provided in embodiment 3 of the present application.
Description of reference numerals: 1. an electric core; 2. a switch unit; 3. a line; 4. early warning resistance; 5. a battery management module; 6. and a signal acquisition interface.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses a thermal runaway alarm system.
Example 1
Referring to fig. 1, the thermal runaway alarm system includes a power supply module and a battery management module 5. The battery management module 5 is used for monitoring the heating state of the power supply module and transmitting a heat runaway signal to the whole vehicle end when the power supply module is abnormal in heating so as to facilitate escape of a user.
Referring to fig. 2, the power supply module includes a battery cell 1, a switch unit 2, a line 3, and an early warning resistor 4. The battery cell 1 is used for providing electric quantity so as to meet the energy supply requirement of a new energy vehicle. In this embodiment, only one battery cell 1 is provided.
Switch unit 2 sets up on electric core 1, and switch unit 2 is used for gathering the information that generates heat of electric core 1 and changing on-off state. Specifically, the switch unit 2 has two states, i.e., on/off state or on/off state, when the electric core 1 is normally and abnormally heated.
The line 3 is connected to the switching unit 2. The wiring 3 is a lead wire or an FPC (Flexible Printed Circuit). If the circuit 3 is a conducting wire, the circuit 3 can be an aluminum wire, a copper wire or a nickel wire; the present embodiment takes a copper wire as an example.
The "connection" of the line 3 to the switching unit 2 may be an electrical connection. For example, in some embodiments, the switch unit 2 is a temperature relay set with a given temperature, and the line 3 is electrically connected to the temperature relay. When the battery cell 1 generates heat normally, the temperature of the battery cell is lower than the given temperature of the temperature relay, the temperature relay is closed, and the circuit 3 cannot be switched on at the moment. When the battery cell 1 generates heat abnormally, the temperature of the battery cell is higher than the given temperature of the temperature relay, the temperature relay is defined to be opened, and the circuit 3 is switched on at the moment.
Referring to fig. 2, the "connection" of the line 3 to the switching unit 2 may also be a physical connection. For example, in the present embodiment, the switching unit 2 is a relief valve. Specifically speaking, the relief valve is including fixing the valve body on electric core 1 and gathering electric core 1 information that generates heat and produce the valve that the displacement changes, for example the valve reciprocates to slide and sets up on the valve body, and is formed with the pressure release passageway between valve and the valve body, controls opening and closing of pressure release passageway promptly when the valve reciprocates to slide.
The early warning resistor 4 is connected in series with the line 3, and the early warning resistor 4 is used for calibrating the resistance value, which can be R.
Referring to fig. 1 and 2, a battery management module 5 is connected in series with the line 3 and the pre-warning resistor 4, respectively, and is used for monitoring the state of the power supply module. Specifically, the early warning resistor 4, the battery management module 5 and the line 3 form an early warning loop for measuring the resistance of the early warning resistor 4, that is, the battery management module 5 can function as an ohmmeter.
When the battery core 1 generates heat normally, the line 3 is connected, the early warning loop is in a path state, and the battery management module 5 measures that the resistance value of the early warning resistor 4 is R. When the battery core 1 generates heat abnormally, the pressure release valve cuts off the circuit 3, the circuit 3 cannot be connected, the early warning loop is in a circuit-breaking state, and the battery management module 5 measures the resistance value of the early warning resistor 4 to be infinite. The battery management module 5 can achieve the purpose of judging that the thermal runaway of the battery core 1 occurs by monitoring the resistance value change of the early warning resistor 4.
In the related art, a current signal or a voltage signal of the battery core 1 is monitored by using the battery management module 5 to perform thermal runaway early warning. Specifically, in the related art, the circuit 3 may be disposed on the battery cell 1, the switch unit 2 for controlling the connection of the circuit 3 is fixed on the battery cell 1, then the circuit 3 is connected in series with the battery cell 1, and then a power module is connected in series with both the circuit 3 and the battery cell 1 to form a monitoring loop, the power module may be preferably a storage battery, and then the current signal (i.e., the current signal in the monitoring loop) or the voltage signal of the battery cell 1 is monitored by the battery management module 5. When the electric core 1 generates heat normally, the switch unit 2 switches on the line 3, and at this time, the battery management module 5 may measure a current signal or a voltage signal of the electric core 1; when the electric core 1 generates heat abnormally, the switch unit 2 makes the line 3 not be connected, and at this time, the battery management module 5 measures that the current signal and the voltage signal of the electric core 1 are zero. The battery management module 5 monitors the change of the current signal or the voltage signal of the battery core 1, judges that thermal runaway has occurred, and then gives an alarm to the whole vehicle end.
In the related art, a signal of a pressure sensor or a temperature sensor is monitored by the battery management module 5 to perform a thermal runaway early warning. Specifically, in the related art, a pressure sensor or a temperature sensor may be fixed on the battery cell 1, the pressure sensor or the temperature sensor may be connected in series with the battery management module 5, a power supply module (preferably, a storage battery) may be connected in series with the pressure sensor or the temperature sensor and the battery management module 5 to form a monitoring loop, and then the battery management module 5 monitors a signal of the pressure sensor or the temperature sensor. When the electric core 1 generates heat normally, the temperature signal of the temperature sensor or the pressure signal of the pressure sensor monitored by the battery management module 5 does not exceed a set value; when the battery core 1 generates heat abnormally, the temperature signal of the temperature sensor or the pressure signal of the pressure sensor monitored by the battery management module 5 exceeds a set value, and the battery management module 5 judges that thermal runaway has occurred, so as to give an alarm to the whole vehicle end.
For the application, the resistance value of the early warning resistor 4 is monitored through the battery management module 5 to perform thermal runaway early warning, and an external power module is not required to be additionally connected in an early warning loop, so that the investment and the use of the additional power module are reduced, the electrical connection between the power module and the battery management module 5 is avoided, a simpler wiring mode is realized, and the purpose of reducing the cost can be achieved; meanwhile, compared with the monitoring of current signals and voltage signals, the monitoring mode of the early warning device is not easily interfered by the external environment, and the early warning function is stable and reliable; compared with the prior art that the battery management module 5 monitors the signal of the pressure sensor or the temperature sensor to perform the thermal runaway early warning, the cost is obviously reduced (the cost of the early warning resistor is far lower than that of the pressure sensor or the temperature sensor).
Referring to fig. 1 and 2, in the present embodiment, a signal acquisition interface 6 is disposed on the line 3, and the signal acquisition interface 6 is used for connecting the line 3 in series with the battery management module 5. Through signal acquisition interface 6, can make the series connection of battery management module 5 and circuit 3 have higher stability, and the operation process of series connection is more simple and convenient.
In some embodiments, the direction of the reciprocating sliding of the valve in the pressure relief valve may be a direction parallel to the end surface of the battery cell 1 where the pressure relief valve is located. In this case, the line 3 may be connected at least to one side of the relief valve. In this embodiment, the line 3 may still be fixed by the signal acquisition interface 6 and the pre-alarm resistor 4.
The circuit 3 may be linearly distributed on the battery cell 1, and for convenience of description, the extending direction of the circuit 3 is defined as a first direction, the extending direction of the alarm module is defined as a second direction, and the specific explanation of the "extending direction of the alarm module" is the length direction of the battery cell 1 when the alarm module is disposed on the battery cell 1. Specifically, referring to fig. 3, the first direction may be parallel to the second direction, that is, the line 3 is arranged along the length direction of the battery cell 1; the line 3 can then be provided on one or both sides of the pressure relief valve. The first direction may intersect with the second direction, and the intersecting preferred mode may be vertical, that is, the line 3 is arranged along the width direction of the battery cell 1; the line 3 can also be arranged on one or both sides of the pressure relief valve in this case.
The line 3 may also be arranged around the pressure relief valve, i.e. the line 3 is arranged outside the four side walls of the pressure relief valve at the same time.
The implementation principle of the embodiment 1 of the application is as follows: when the battery core 1 is heated normally, the pressure release valve does not act, the circuit 3 is connected at the moment, the early warning loop is in a state of a passage, and the battery management module 5 measures that the resistance value of the early warning resistor 4 is R; when electricity core 1 generates heat unusually, the pressure of electricity core 1 inside sharply risees and surpasss the setting value of relief valve, and the valve of relief valve slides along the direction of keeping away from the valve body, opens the inside of pressure release passageway to electricity core 1 and carries out the pressure release, and valve and high-temperature gas cause mechanical impact to circuit 3 when the valve slides and make circuit 3 cut off, and the early warning return circuit is become the state of opening circuit by the access state, and battery management module 5 measures the resistance of early warning resistance 4 and is the infinity. The battery management module 5 monitors the resistance value change of the early warning resistor 4, judges that thermal runaway has occurred, and transmits a thermal runaway signal to the whole vehicle end so as to facilitate escape of a user.
Example 2
Referring to fig. 4, the present embodiment is different from embodiment 1 in that in the present embodiment, at least two battery cells 1 are provided, for example, 12 battery cells 1 are provided, 12 battery cells 1 are distributed in an array manner of 12 × 1, and a rectangular parallelepiped battery module is configured. And two adjacent electric cores 1 are fixedly connected. In some embodiments, 9, 10, or 11 battery cells 1 may also constitute a battery module, and the number of the battery cells 1 depends on the specification of the battery module.
The switch units 2 correspond to the battery cells 1 one by one, that is, in this embodiment, the number of the relief valves is 12. The 12 pressure release valves are all positioned on the same side of the battery module, for example, the 12 pressure release valves are all arranged on one end face of the battery module in the vertical direction; line 3 is disposed on the end face, and 12 pressure relief valves are located between the battery module and line 3. The relief valve on 12 electric cores 1 can all be located the same width position of the battery module that 12 electric cores 1 constitute, for example in this embodiment, 12 relief valves all set up on the width direction's of this battery module the central line to make circuit 3 can be the straight line and distribute. Compare the position in 12 relief valves and distribute at will and make circuit 3 be the curve and distribute, line 3 walk the line simpler, and circuit 3 is changeed in production and processing, for example in this embodiment, with the copper wire stretch out directly fix directly over 12 electric core 1 can.
The implementation principle of embodiment 2 of the present application is as follows: when any one of the battery cores 1 of the battery module is out of control due to heat, the pressure release valve fixedly arranged on the battery module can cause mechanical impact on the circuit 3, so that the battery management module 5 monitors the resistance change of the early warning resistor 4 to perform early warning of the out of control due to heat.
Example 3
Referring to fig. 5, the difference between the present embodiment and embodiment 2 is that, in the present embodiment, the line 3 and the early warning resistor 4 are in one-to-one correspondence with the battery cells 1, and the line 3 and the early warning resistor 4 on each battery cell 1 are respectively connected in series with the battery management module 5, that is, each battery cell 1 is provided with a group of lines 3, early warning resistors 4 and the battery management module 5 to form an early warning loop, and the line 3 on each battery cell 1 is cut off by the pressure relief valve fixed thereto.
The implementation principle of embodiment 3 of the application is as follows: when any one of the electric cores 1 of the battery module is out of control due to heat, the pressure release valve fixed on the battery module causes mechanical impact on the circuit 3 arranged on the battery module, so that the battery management module 5 monitors the resistance value change of the early warning resistor 4 on the electric core 1; and for the battery core 1 without thermal runaway, the battery management module 5 monitors that the resistance value of the early warning resistor 4 fixed thereon is still R. Therefore, when the battery management module 5 performs thermal runaway early warning, the battery core 1 with abnormal heating in the battery module can be quickly positioned; and on the basis of this, so as to take emergency measures against thermal runaway of the battery module in time.
Example 4
The difference between this embodiment and embodiment 3 is that, in this embodiment, a plurality of battery modules are formed by the battery cells 1; for example, 2, 3 or 4 battery modules. On the basis, the plurality of battery modules can further form a battery pack. A plurality of battery modules forming the battery pack are generally distributed in a rectangular array; for example, 2 battery modules are arranged in a 2 × 1 array, 3 battery modules are arranged in a 3 × 1 array, and 4 battery modules are arranged in a 4 × 1 or 2 × 2 array.
The principle of the embodiment 4 of the application is as follows: when any one of the battery cores 1 in any one of the battery modules in the battery pack is out of control due to heat, the pressure release valve fixed on the battery pack causes mechanical impact on the circuit 3 arranged on the battery pack, so that the battery management module 5 monitors the resistance value change of the early warning resistor 4 on the battery core 1; and for the battery core 1 without thermal runaway, the battery management module 5 monitors that the resistance value of the early warning resistor 4 fixed thereon is still R. Therefore, when the battery management module 5 performs the thermal runaway early warning, the battery module which is thermally runaway in the battery pack and the battery core 1 which is thermally runaway in the battery module can be quickly positioned.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A power supply module, characterized in that the power supply module comprises:
a battery cell (1) for providing an electrical quantity;
the switch unit (2) is used for acquiring the heating information of the battery cell (1) and changing the switch state, and the switch unit (2) is arranged on the battery cell (1);
a line (3), the line (3) being connected to the switching unit (2);
and the early warning resistor (4) is used for calibrating the resistance value, and the early warning resistor (4) is connected with the line (3) in series.
2. Power supply module according to claim 1,
the switch unit (2) is a pressure relief valve which comprises a valve for acquiring heating information of the battery core (1) and generating displacement change.
3. Power supply module according to claim 2,
one end of the pressure release valve is connected with the battery cell (1), and the other end of the pressure release valve is connected with the circuit (3).
4. Power supply module according to claim 2,
one end of the pressure release valve is connected with the battery cell (1), and the circuit (3) is at least connected to one side of the pressure release valve.
5. Power supply module according to claim 4,
the extension direction of the line (3) is a first direction, the extension direction of the alarm module is a second direction, and the first direction is parallel to the second direction.
6. Power supply module according to claim 4,
the extension direction of the line (3) is a first direction, the extension direction of the alarm module is a second direction, and the first direction is intersected with the second direction.
7. Power supply module according to claim 4,
the line (3) is arranged around the pressure relief valve.
8. A thermal runaway alarm system, comprising:
a power supply module as claimed in any one of claims 1 to 7;
and the battery management module (5), the battery management module (5) is respectively connected with the circuit (3) and the early warning resistor (4) in series.
9. The thermal runaway alarm system of claim 8,
the number of the battery cells (1) is at least two;
the switch units (2) correspond to the battery cores (1) one by one.
10. The thermal runaway alarm system of claim 9,
the circuit (3) and the early warning resistor (4) are in one-to-one correspondence with the battery core (1), and the circuit (3) and the early warning resistor (4) on the battery core (1) are respectively connected with the battery management module (5) in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111264801.5A CN114094217A (en) | 2021-10-28 | 2021-10-28 | Power supply module and thermal runaway alarm system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111264801.5A CN114094217A (en) | 2021-10-28 | 2021-10-28 | Power supply module and thermal runaway alarm system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114094217A true CN114094217A (en) | 2022-02-25 |
Family
ID=80298034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111264801.5A Pending CN114094217A (en) | 2021-10-28 | 2021-10-28 | Power supply module and thermal runaway alarm system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114094217A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1983319A1 (en) * | 2007-04-20 | 2008-10-22 | Siemens Aktiengesellschaft | Temperature measuring device |
| CN102195270A (en) * | 2011-05-31 | 2011-09-21 | 无锡新纬电池有限公司 | Over-charge and over-heat alarm protecting structure of soft-shell lithium battery |
| CN106025405A (en) * | 2016-07-22 | 2016-10-12 | 北京航空航天大学 | Alarming device and method for quick monitoring of power battery failure |
| CN212392295U (en) * | 2020-07-06 | 2021-01-22 | 山东电工电气集团有限公司 | Energy storage battery management device with early fault warning function |
| CN212480258U (en) * | 2020-07-03 | 2021-02-05 | 东莞蒲微防水透气膜材料有限公司 | Explosion-proof valve |
-
2021
- 2021-10-28 CN CN202111264801.5A patent/CN114094217A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1983319A1 (en) * | 2007-04-20 | 2008-10-22 | Siemens Aktiengesellschaft | Temperature measuring device |
| CN102195270A (en) * | 2011-05-31 | 2011-09-21 | 无锡新纬电池有限公司 | Over-charge and over-heat alarm protecting structure of soft-shell lithium battery |
| CN106025405A (en) * | 2016-07-22 | 2016-10-12 | 北京航空航天大学 | Alarming device and method for quick monitoring of power battery failure |
| CN212480258U (en) * | 2020-07-03 | 2021-02-05 | 东莞蒲微防水透气膜材料有限公司 | Explosion-proof valve |
| CN212392295U (en) * | 2020-07-06 | 2021-01-22 | 山东电工电气集团有限公司 | Energy storage battery management device with early fault warning function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110967642B (en) | Thermal runaway detection circuit and method | |
| KR100899284B1 (en) | Battery Module Having Stability Means of Simple Structure | |
| EP0998778B1 (en) | Fault-tolerant battery system employing intra-battery network architecture | |
| WO2012157855A1 (en) | Battery pack having improved safety | |
| EP3761397A1 (en) | Battery module and battery pack | |
| CN209730085U (en) | Battery modules | |
| EP3796416B1 (en) | Battery pack | |
| CN210224157U (en) | Battery module, power battery package and vehicle | |
| CN108199099A (en) | A kind of battery protecting apparatus and its control method | |
| EP3086427B1 (en) | Lithium-ion battery protector | |
| CN109683095A (en) | The fault detection method and system of battery pack | |
| CN114094217A (en) | Power supply module and thermal runaway alarm system | |
| JP2020042968A (en) | Power storage device module | |
| CN110534822B (en) | Power battery fault early warning system | |
| CN213026382U (en) | Battery module, battery package and vehicle | |
| CN214542327U (en) | Battery thermal runaway alarm system | |
| EP4060785A1 (en) | Battery system and vehicle including the battery system | |
| CN113746183A (en) | Conduction type safe and rapid charger for lithium battery electric bicycle and charging method | |
| CN104051700B (en) | A kind of stack type lithium battery system | |
| CN209607819U (en) | A kind of battery and electric appliance | |
| CN112820956A (en) | Battery thermal runaway alarm system based on PWM wave | |
| KR20210126422A (en) | Battery pack and monitoring circuit | |
| CN219419453U (en) | Energy storage battery cluster and energy storage system | |
| TWM578023U (en) | Comprehensive safety monitoring system for lithium-ion battery | |
| CN116359759B (en) | Large-scale energy storage battery pack thermal runaway detection device, method and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |