A system detecting thermal propagation in the battery

Abstract

The present invention relates to a system (1) which enables the cell (2) energy to be cut off and the user to be warned by enabling early detection of heat propagation and heat runaway by using real-time monitored data on lithium-based batteries.

Description

[0001] DESCRIPTION

[0002] A SYSTEM DETECTING THERMAL PROPAGATION IN THE BATTERY

[0003] Technical Field

[0004] The present invention relates to a system which enables the cell energy to be cut off and the user to be warned by enabling early detection of heat propagation and heat runaway by using real-time monitored data on lithium-based batteries.

[0005] Background of the Invention

[0006] The energy required for the operation of electric vehicles is provided through lithium-based batteries. However, heat propagation and / or runaway occurs during the use of a lithium-based battery due to overheating, overcharging and / or discharging, mechanical damage generated thereon and / or the defects thereof. Due to the failure to detect the said heat propagation early, heat propagation and / or runaway within the battery cells can occur rapidly, causing serious loss of life and property. For this reason, the detection of heat propagation and / or runaway becomes very important. In today's applications, there are various applications that enable the heat propagation and / or runaway that may occur on the battery to be detected by means of heat / temperature sensors placed on the battery. However, in the said applications, the sensor placed on the battery enables the ambient temperature to be detected and the heat change occurring in each cell cannot be detected instantaneously before reaching to a certain level. Since the heat propagation and / or runaway cannot be detected instantaneously before it reaches to a certain level, the heat propagation occurs on the battery and the desired protection on the battery cannot be fully provided.

[0007] For this reason, in the state of art, there is a need for a system which instantaneously detects the changing pressure of the environment through pressure sensors placed in order to enable the heat propagation generated in the battery cells to be detected early and enables the user to be informed by cutting off the battery current when a heat propagation is detected.

[0008] The Chinese patent document no. CN110492192A, an application included in the state of the art, discloses a system for the detection of abnormal pressure and temperature conditions occurring inside the electric vehicle battery. The invention subject to the said Chinese patent document belongs to the technical field of lithium-ion batteries and specially relates to a device for preventing lithium-ion battery from fire explosion during charging. The device comprises the lithium battery; the outer side wall of the lithium battery is connected with a shell, a detection mechanism is arranged on the outer side wall of the shell, and the protection mechanism comprises a pressure sensor and a temperature sensor; the air pressure sensor and temperature sensor are arranged so as to avoid potential safety hazards of the lithium-ion battery in the process of use; air pressure sensor and temperature sensor can detect that the air pressure and temperature data in the shell is abnormal, so that the battery pack is controlled not to be on fire or explode.

[0009] Summary of the Invention

[0010] An object of the present invention is to realize to a system which enables the cell energy to be cut off and the user to be warned by enabling early detection of heat propagation and / or heat runaway by using real-time monitored data on lithium- based batteries.

[0011] Detailed Description of the Invention

[0012] “A System Detecting Thermal Propagation in the Battery” realized to fulfil the objective of the present invention is shown in the figure attached, in which: Figure 1 is a schematic view of an inventive system detecting thermal propagation in the battery.

[0013] The components illustrated in the figure are individually numbered, where the numbers refer to the following:

[0014] 1. System

[0015] 2. Battery

[0016] 2.1. Cell

[0017] 3. Monitoring unit

[0018] 4. Control unit

[0019] An inventive system (1) which enables the heat propagation to be detected early comprises at least one battery (2) which includes more than one cell (2.1) that enables the electrical energy to be stored and / or the stored energy to be used thereon; at least one monitoring unit (3) which enables the operation data related to the cells (2.1) included in the battery (2) to be monitored; and at least one control unit (4) which is in communication with the monitoring unit (3) and receives the operation data of the battery (2) cells (2.1) through the monitoring unit (3); detects changes occurring on the operation data of the cell (2.1) by processing the received operation data; cuts off the current delivered to the battery (2) by detecting a thermal propagation occurring in the cell (2.1) through the detected changes and enables the user to be informed.

[0020] The battery (2) included in the inventive system (1) is configured to enable the electrical energy in the form of an electric vehicle, storage system and / or vessel to be stored and / or the stored energy to be used on any electrically powered vehicle and / or device. The battery (2) consists of at least one body (not shown in the figures) and a plurality of cells (2.1) included in the body in order to enable the electrical energy to be stored. Each cell (2.1) included in the battery (2) is connected to each other in series and / or in parallel in order to enable the electrical energy to be stored.

[0021] The monitoring unit (3) included in the inventive system (1) is located on the battery

[0022] (2) and is a sensor that enables the strain and / or pressure data to be monitored during the operation of the battery (2) cells (2.1). The monitoring unit (3) is in communication with the control unit (4) and is configured to transmit the monitored operation data of the cell (2.1) to the control unit (4) through the established communication. In this way, the control unit (4) is able to detect the heat propagation on the cell (2.1) by using the data it receives from the monitoring unit

[0023] (3).

[0024] The control unit (4) included in the inventive system (1) is placed in such a way as to be in communication with the battery (2) that enables the electrical energy in the form of an electric vehicle, energy storage system and / or vessel to be stored and / or used. The control unit (4) is in communication with the monitoring unit (3) and receives the monitored strain and / or pressure data of the battery (2) cells (2.1) through the monitoring unit (3) and enables the changes on the data to be detected. The control unit (4) is configured to determine that a heat propagation and / or runaway may occur on the cell (2.1) by comparing the changes in the data on the cell (2.1) with the predetermined values or to detect the generated heat propagation and / or runaway. The control unit (4) enables the current delivered to the battery (2) and / or cell (2.1) to be cut off when it detects a heat propagation and / or runaway. In this way, early intervention is carried out automatically by cutting off the current delivered to the battery (2) and / or cell (2.1) by detecting early the heat propagation and / or runaway via the operation data of the cell (2.1). The control unit (4) enables the information that heat propagation and / or runaway may occur or that the current delivered to the battery (2) and / or the cell (2.1) is cut off due to a heat propagation and / or runaway to be shared with the relevant user. The control unit (4) is configured to enable the information that the current delivered to the battery (2) and / or the cell (2.1) has been cut off to be shared by establishing communication with any electronic device, for example, an on-board computer located on the electrically powered vehicle and an electronic device belonging to the user.

[0025] Industrial Application of the Invention

[0026] In the inventive system (1), the battery (2) enables the electrical energy in the form of an electric vehicle, energy storage system and / or vessel to be stored and / or used. There are at least two cells (2.1) connected to each other in parallel and / or in series included in the battery (2). The monitoring unit (3) enables the operation data of the cell (2.1) to be monitored instantaneously by being located on the battery (2). The monitoring unit (3) transmits strain and / or pressure data in the environment where the cell (2.1) is located to the control unit (4). The control unit (4) determines that a heat propagation and / or runaway may occur on the cell (2.1) or is configured to detect the heat propagation and / or runaway by comparing the strain and / or pressure values related to the operation data of the cells (2.1) received from the monitoring unit (3) with the predetermined values. The control unit (4) enables the user to be informed by cutting off the current delivered to the battery (2) and / or the cell (2.1) when it detects a heat propagation and / or runaway that may occur or has occurred on the cell (2.1). In this way, the heat propagation and / or runaway can be detected in a very short time before or after it occurs by instantly monitoring the operation data in the environment where the cell (2.1) is located, and it is enabled to intervene by automatically cutting off the current.

[0027] Within these basic concepts; it is possible to develop various embodiments of the inventive “A System (1) Detecting Thermal Propagation in the Battery”; the invention cannot be limited to examples disclosed herein and it is essentially according to claims.

Claims

CLAIMS1. An inventive system (1) which enables the heat propagation to be detected early; comprising at least one battery (2) which includes more than one cell (2.1) that enables the electrical energy to be stored and / or the stored energy to be used thereon; and characterized by at least one monitoring unit (3) which enables the operation data related to the cells (2.1) included in the battery (2) to be monitored; at least one control unit (4) which is in communication with the monitoring unit (3) and receives the operation data of the battery (2) cells (2.1) through the monitoring unit (3); detects changes occurring on the operation data of the cell (2.1) by processing the received operation data; cuts off the current delivered to the battery (2) by detecting a thermal propagation occurring in the cell (2.1) through the detected changes and enables the user to be informed.

2. A system (1) according to Claim 1; characterized by the battery (2) which is configured to enable the electrical energy in the form of an electric vehicle, storage system and / or vessel to be stored and / or the stored energy to be used on any electrically powered vehicle and / or device.

3. A system (1) according to Claim 1 or 2; characterized by the battery (2) which consists of at least one body and a plurality of cells (2.1) included in the body in order to enable the electrical energy to be stored.

4. A system (1) according to any one of the preceding claims; characterized by the battery (2) in which each cell (2.1) therein is connected to each other in series and / or in parallel in order to enable the electrical energy to be stored.

5. A system (1) according to any one of the preceding claims; characterized by the monitoring unit (3) which is located on the battery (2) and is a sensor that enables the strain and / or pressure data to be monitored during the operation of the battery (2) cells (2.1).

6. A system (1) according to Claim 5; characterized by the monitoring unit (3) which is in communication with the control unit (4) and is configured to transmit the monitored operation data of the cell (2.1) to the control unit (4) through the established communication.

7. A system (1) according to any one of the preceding claims; characterized by the control unit (4) which is placed in such a way as to be in communication with the battery (2) that enables the electrical energy in the form of an electric vehicle, energy storage system and / or vessel to be stored and / or used.

8. A system (1) according to any one of the preceding claims; characterized by the control unit (4) which is in communication with the monitoring unit (3) and receives the monitored strain and / or pressure data of the battery (2) cells (2.1) through the monitoring unit (3) and enables the changes on the data to be detected.

9. A system (1) according to any one of the preceding claims; characterized by the control unit (4) which is configured to determine that a heat propagation and / or runaway may occur on the cell (2.1) by comparing the changes in the data on the cell (2.1) with the predetermined values or to detect the generated heat propagation and / or runaway.

10. A system (1) according to any one of the Claims 1 to 8; characterized by the control unit (4) which enables the current delivered to the battery (2) and / or cell (2.1) to be cut off when it detects a heat propagation and / or runaway.

11. A system (1) according to Claim 10; characterized by the control unit (4) which enables the information that heat propagation and / or runaway may occur or that the current delivered to the battery (2) and / or the cell (2.1) is cut off due to a heat propagation and / or runaway to be shared with the relevant user.

12. A system (1) according to Claim 11; characterized by the control unit (4) which is configured to enable the information that the current delivered to the battery (2) and / or the cell (2.1) has been cut off to be shared by establishing communication with any electronic device in the form of an on-board computer located on the electrically powered vehicle and an electronic device belonging to the user.

Images