Battery cell safety early warning system

Abstract

The utility model provides a battery cell safety early warning system. The battery cell safety early warning system comprises a battery cell with an outer surface; the bending sensor is in a long strip shape, and the bending sensor is installed on the outer surface and can be bent and deformed along with expansion deformation of the outer surface. The battery management system is electrically connected with the bending sensor and sends out an early warning signal when the deformation parameter of the bending sensor reaches a set critical value. The bending sensor is arranged on the outer surface of the battery cell, the bending sensor can synchronously bend and deform along with deformation of the outer surface in the process that the outer surface deforms due to the action of internal pressure of the battery cell, the battery management system can supply power to the bending sensor, and relevant deformation parameters can be obtained according to the deformation condition of the bending sensor; according to the invention, the deformation parameter of the battery cell can be acquired, the early warning signal is sent out when the deformation parameter reaches the set critical value, and the internal pressure change condition of the battery cell can be timely acquired and early warning can be given in advance under the joint cooperation of the bending sensor and the battery management system, so that the safety of the battery cell is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery, more particularly, to a battery cell safety warning system. BACKGROUND

[0002] At present, batteries have been widely used in various fields, and consumers' requirements for battery safety are also increasing. As the energy storage unit of the battery, the safety of the battery cell plays an important role in the many factors affecting the safety of the battery.

[0003] In order to ensure the safety of the battery cell, the industry often monitors various parameters such as voltage and temperature of the battery cell in real time to determine the health status of the battery cell, and takes appropriate protective measures when an abnormality occurs. However, this method cannot predict the pressure change inside the battery cell and make an early warning. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the embodiments of the present application is to provide a battery cell safety warning system to solve the technical problem that the pressure change inside the battery cell cannot be predicted and an early warning cannot be made in the related art.

[0005] The embodiments of the present application provide a battery cell safety warning system, which comprises:

[0006] a battery cell having an outer surface;

[0007] a bending sensor in the shape of a long strip, the bending sensor being installed on the outer surface and being capable of bending deformation along with the expansion deformation of the outer surface; and

[0008] a battery management system electrically connected to the bending sensor and sending a warning signal when the deformation parameter of the bending sensor reaches a set critical value.

[0009] In one of the embodiments, one end of the bending sensor in the length direction is a first end, the first end is fixedly connected to the outer surface, and the other part of the bending sensor except the first end is movably connected to the outer surface in the length direction of the bending sensor.

[0010] In one of the embodiments, the battery cell safety warning system comprises a plurality of sleeves, the plurality of sleeves are fixedly arranged on the outer surface, and are arranged on the bending sensor in the length direction of the bending sensor.

[0011] In one of the embodiments, the other end of the bending sensor away from the first end is a second end, and the second end is capable of moving relative to the outer surface along the length direction of the bending sensor with a maximum movement amount as the outer surface deforms; in the plurality of the sleeves, one of the sleeves is sleeved on the second end, and the width of the sleeve in the length direction of the bending sensor is greater than the maximum movement amount.

[0012] In one of the embodiments, the width of the sleeve sleeved on the second end in the length direction of the bending sensor is greater than the width of any other sleeve.

[0013] In one of the embodiments, as the outer surface expands and deforms, the part of the bending sensor other than the first end is capable of moving relative to the sleeve and is subjected to a predetermined frictional resistance applied by the sleeve, and the predetermined frictional resistance is F, 0.1N≤F≤0.5N.

[0014] In one of the embodiments, the outer surface includes a top surface provided with a pole, a bottom surface opposite to the top surface, and a side surface connected between the top surface and the bottom surface; the side surface includes two oppositely arranged first side surfaces and two oppositely arranged second side surfaces, the area of the second side surface is greater than the area of the first side surface, and the sleeve is arranged at at least one of the midpoint positions of the two first side surfaces and the two second side surfaces.

[0015] In one of the embodiments, the outer surface includes a top surface provided with a pole, a bottom surface opposite to the top surface, and a side surface connected between the top surface and the bottom surface; the bending sensor is mounted on the side surface at a position corresponding to the midpoint between the bottom surface and the top surface.

[0016] In one of the embodiments, the bending sensor is one of a conductive ink bending sensor, an optical fiber bending sensor, a capacitive bending sensor, and a resistive bending sensor.

[0017] In one of the embodiments, the battery cell is electrically connected with an external load to form a high-voltage path, the battery management system is connected to the high-voltage path to control the on-off of the high-voltage path; the battery cell safety warning system includes a monitoring instrument and / or an alarm electrically connected with the battery management system.

[0018] The electric cell safety early warning system provided by the embodiments of the present application has the beneficial effects that: by arranging the bending sensor on the outer surface of the electric cell, the bending sensor will bend and deform synchronously with the deformation of the outer surface in the process that the outer surface is deformed due to the internal pressure of the electric cell, the battery management system can supply power for the bending sensor, and can also obtain relevant deformation parameters according to the deformation of the bending sensor, and send an early warning signal when the deformation parameters reach the set critical value, under the cooperation of the bending sensor and the battery management system, the internal pressure change of the electric cell can be obtained in time and early warning can be made, so that the safety of the electric cell is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0020] Figure 1 The structural schematic diagram of the electric cell safety early warning system provided by the embodiments of the present application is shown in the figure.

[0021] Figure 2 The structural schematic diagram of the electric cell safety early warning system provided by the embodiments of the present application is shown in the figure. Figure 1 The structural schematic diagram of the electric cell safety early warning system provided by the embodiments of the present application is shown in the figure.

[0022] Figure 3 The structural schematic diagram of the electric cell safety early warning system provided by the embodiments of the present application is shown in the figure. Figure 2 The structural schematic diagram of the electric cell safety early warning system provided by the embodiments of the present application is shown in the figure.

[0023] Figure 4 The structural schematic diagram of the electric cell safety early warning system provided by the embodiments of the present application is shown in the figure.

[0024] Figure 5 The structural schematic diagram of the electric cell safety early warning system provided by the embodiments of the present application is shown in the figure.

[0025] In the figure, various reference signs are as follows:

[0026] 10, electric cell safety early warning system; 100, electric cell; 110, bottom surface; 120, top surface; 130, side surface; 131, first side surface; 132, second side surface; 140, pole; 200, bending sensor; 210, first end; 220, second end; 300, battery management system; 400, sleeve; 410, first sleeve; 420, second sleeve; 500, monitoring instrument; 600, alarm. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, further detailed description will be made to the present application in combination with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application.

[0028] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0029] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0030] In addition, the terms "first", "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0031] Please refer to Figures 1 to 5 As shown, the safety warning system 10 for the battery cell provided by the embodiments of the present application will be described.

[0032] In some embodiments, the safety warning system 10 for the battery cell includes a battery cell 100, a bending sensor 200 and a battery management system 300. The battery cell 100 has an outer surface. The bending sensor 200 is in a strip shape. The bending sensor 200 is installed on the outer surface and can be bent and deformed with the expansion and deformation of the outer surface. The battery management system 300 is electrically connected with the bending sensor 200 and sends a warning signal when the deformation parameter of the bending sensor 200 reaches a set critical value.

[0033] In the present application, the outer surface includes a top surface 120, a bottom surface 110 and a side surface 130. It can be understood that the outer surface in which the pole 140 is arranged is the top surface 120, the bottom surface 110 is opposite to the top surface 120, and the side surface 130 is a surface connected between the top surface 120 and the bottom surface 110 and extending around the edges of the top surface 120 and the bottom surface 110.

[0034] Specifically in the present application, the battery cell 100 is cuboid, the side surface 130 includes two first side surfaces 131 oppositely arranged and two second side surfaces 132 oppositely arranged, and the area of the second side surface 132 is greater than that of the first side surface 131. It can be understood that the first side surface 131 and the second side surface 132 are alternately arranged in the side surface 130 and are sequentially connected in a rectangular shape. It can be understood that in the battery cell 100, the direction of the line connecting the bottom surface 110 and the top surface 120 is the height direction of the battery cell 100 (i.e. the direction indicated by the Z axis), the direction of the line connecting the two first side surfaces 131 is the length direction of the battery cell 100 (i.e. the direction indicated by the X axis), and the direction of the line connecting the two second side surfaces 132 is the width direction of the battery cell 100 (i.e. the direction indicated by the Y axis).

[0035] In the present application, the bending sensor 200 is installed on the side surface 130 and extends along a path with a constant distance from the top surface 120 and the bottom surface 110. It can be understood that the bending sensor 200 can be installed only on the second side surface 132 (as shown in FIG. 1A), only on the first side surface 131, or extend from the second side surface 132 to one first side surface 131 in an "L" shape (as shown in FIG. 1B), or extend along the side surface 130 in a ring shape (as shown in FIG. 1C). Figures 1 to 3 Figure 4 Figure 5 Further, the bending sensor 200 extends and its length direction is parallel to the top surface 120 and the bottom surface 110, so that the bending sensor 200 is at a plurality of positions spaced apart in its length direction and is at an equal distance from the top surface 120 and the bottom surface 110.

[0036] Further, considering that a plurality of battery cells 100 are often stacked on the second side surface 132, in order to avoid the influence of the bending sensor 200 on the stacking of the plurality of battery cells 100, the bending sensor 200 is arranged on the first side surface 131.

[0037] In other embodiments, the bending sensor 200 can also be installed on the top surface 120 or the bottom surface 110, or in other embodiments, the battery cell 100 can also be in a cylindrical shape, so that the side surface 130 is a cylindrical surface.

[0038] It can be understood that the positive and negative electrode materials, electrolyte and separator in the battery cell 100 will slowly produce gas under charging and discharging or high temperature, and will quickly produce gas under overcharging and short circuit, so that the internal pressure increases, causing the battery cell 100 to bulge and deform. By arranging the bending sensor 200 on the outer surface of the battery cell 100, the bending sensor 200 will bend and deform synchronously with the deformation of the outer surface in the process of expansion and deformation of the outer surface.

[0039] ​​For the battery management system 300, which is electrically connected with the bending sensor 200, not only can it power the bending sensor 200, but also can obtain relevant deformation parameters according to the initial deformation condition and the current deformation condition of the bending sensor 200, and send a pre-warning signal when the deformation parameters reach the set critical value.

[0040] Thus, the electric core safety pre-warning system 10 of the present application can obtain the internal pressure change condition of the electric core 100 in time and make a pre-warning in advance through the use of the feature that the outer surface can be deformed under the action of the internal pressure of the electric core 100, and the cooperation of the bending sensor 200 and the battery management system 300 before the voltage and temperature of the electric core 100 appear abnormal, so that the safety performance of the electric core 100 is improved.

[0041] Specifically in the present application, the bending sensor 200 is a resistance type bending sensor, namely a flexible potentiometer. Specifically, when the resistance type bending sensor is bent and deformed with the deformation of the outer surface, its resistance value will change, and the resistance value is proportional to the bending degree of the bending sensor 200. Thus, the battery management system 300 can obtain the bending degree increment and the bending degree change rate of the bending sensor 200 by measuring the initial resistance value and the current resistance value of the bending sensor 200, according to the difference between the current resistance value and the initial resistance value, so the deformation parameters of the bending sensor 200 include the bending degree increment and the bending degree change rate.

[0042] In other embodiments, the resistance type bending sensor 200 can also be replaced by other types of sensors, such as conductive ink type bending sensor or optical fiber type bending sensor or capacitance type bending sensor, at this time, the battery management system 300 can select different measurement parameters according to the different characteristics of the bending sensor 200, and ultimately can also calculate the bending degree increment and the bending degree change rate of the bending sensor 200.

[0043] Specifically in the present application, the two ends of the bending sensor 200 along its length direction are respectively a first end 210 and a second end 220, the first end 210 is fixedly connected to the outer surface, and the other part of the bending sensor 200 except the first end 210 is movably connected to the outer surface in the length direction of the bending sensor 200. It can be understood that the first end 210 is fixed on the outer surface and cannot move relative to the outer surface, while the other part of the bending sensor 200 except the first end 210 is movably connected to the outer surface and moves relative to the outer surface in the length direction of the bending sensor 200 and changes the relative position with the bulging deformation of the outer surface.

[0044] It can be understood that the first end 210 and the second end 220 can be connected to the same second side surface 132 (such as the second side surface 132 in FIG. 1), or the first end 210 can be connected to the first side surface 131 and the second end 220 can be connected to the second side surface 132, or the first end 210 can be connected to the second side surface 132 and the second end 220 can be connected to the first side surface 131. Figure 1(as shown), or both are connected to the same first side 131, or are respectively connected to the first side 131 and the second side 132 (as shown). Figure 4 and Figure 5 As shown in the figure, this presents various installation states of the bending sensor 200 on the side 130.

[0045] Specifically, for the first end 210, it can be adhered to the side 130 by a high-temperature resistant adhesive such as epoxy glue.

[0046] Combination Figures 1 to 5 As shown, in this application, the battery cell safety warning system 10 includes multiple sleeves 400, all of which are fixed to the outer surface and spaced apart along the length of the bending sensor 200. It can be understood that the second end 220 of the bending sensor 200 can be sequentially inserted through the multiple sleeves 400, thereby the entire bending sensor 200 is stably mounted on the outer surface under the combined support of the multiple sleeves 400 and the support of the outer surface to the first end 210. Furthermore, the multiple sleeves 400 also limit the relative movement direction of the bending sensor 200 (excluding the first end 210) to the length direction of the bending sensor 200.

[0047] Specifically, such as Figure 2 As shown, the sleeve 400 is U-shaped, and both legs are fixedly connected to the outer surface, thus the sleeve 400 and the outer surface together form a space to accommodate the bending sensor 200. In this way, the bending sensor 300 can be positioned close to the outer surface, which helps to make the bending sensor 300 exhibit a consistent bending deformation with the outer surface, improving measurement accuracy. In other embodiments, such as... Figure 4 , Figure 5 As shown, a channel for the bending sensor 300 to pass through can be formed inside the sleeve 400, so that the inner side of the sleeve 400 is fastened to the outer surface, and so that after the bending sensor 300 passes through each sleeve 400, there is a small gap between it and the outer surface of the cell 100.

[0048] Specifically in the present application, the second end 220 is capable of moving relative to the outer surface along the length direction of the bending sensor 200 with a maximum moving amount as the outer surface deforms. Among the plurality of sleeves 400, one of the sleeves corresponds to being sleeved on the second end 220, and the width of the sleeve along the length direction of the bending sensor 200 is greater than the maximum moving amount. It can be understood that by sleeving the sleeve 400 on the second end 220, the sleeve 400 can be used to support the second end 220, avoiding the second end 220 from deforming due to lack of support. It can be understood that during the deformation of the outer surface, the sleeve 400 corresponding to the second end 220 is fixed on the outer surface, so that during the deformation of the bending sensor 200 along with the outer surface, the second end 220 is capable of moving along the length direction of the bending sensor 200 within the corresponding sleeve 400, and the relative moving distance between the two is the maximum moving amount of the second end 220 relative to the outer surface.

[0049] By making the width of the sleeve 400 corresponding to the second end 220 greater than the maximum moving amount of the second end 220 relative to the outer surface, it can be ensured that the second end 220 always moves within the sleeve 400 and cannot escape from the sleeve 400, thereby ensuring that the sleeve 400 stably supports the second end 220.

[0050] Specifically in the present application, the width of the sleeve 400 sleeved on the second end 220 is greater than the width of any other sleeve 400 along the length direction of the bending sensor 200. As shown in Figure 1 the sleeve 400 sleeved on the second end 220 is defined as a first sleeve 410, and the other sleeves 400 are all second sleeves 420, then the width L1 of the first sleeve 410 is greater than the width L2 of the second sleeve 420. By setting the width of the first sleeve 410 to be larger, it can be ensured that the second end 220 always moves within the first sleeve 410 and cannot escape from the first sleeve 410, thereby ensuring that the first sleeve 410 stably supports the second end 220, and by setting the width of the second sleeve 420 to be smaller, it can not only support the bending sensor 200 but also not hinder the smooth deformation of the bending sensor 200, which helps to improve the consistency of the deformation of the bending sensor 200 and the outer surface. Further, the number of the second sleeves 420 can be one or more, and when the number of the second sleeves 420 is more than one, the widths L2 of the second sleeves 420 can be the same or different.

[0051] As shown in Figure 4 , Figure 5As shown, when the bending sensor 200 is in an "L" shape or wraps around the side surface 130 for one round, a second sleeve 420 can also be arranged at the connection between the second side surface 132 and the first side surface 131, at this time, the second sleeve 420 is in an overall "L" shape, and two parts thereof are fixed on the second side surface 132 and the first side surface 131 respectively, and an arc-shaped channel is formed in the second sleeve 420 to facilitate the smooth movement of the bending sensor 200 along the arc-shaped channel when the bending sensor 200 deforms along with the side surface 130. Specifically, the arc-shaped channel is in the shape of a circular arc with a central angle of 45°.

[0052] In the present application, with the expansion deformation of the outer surface, the part of the bending sensor 200 other than the first end 210 can move relative to the sleeve 400 and is subjected to the predetermined frictional resistance applied by the sleeve 400, and the predetermined frictional resistance is F, 0.1N≤F≤0.5N. It can be understood that in the process of the deformation of the bending sensor 200 along with the outer surface, the bending sensor 200 will move relative to the sleeve 400. By enabling the sleeve 400 to apply a holding force to the bending sensor 200, the predetermined frictional resistance is applied to the bending sensor 200 in the process of the movement of the bending sensor 200 relative to the sleeve 400, so as to effectively constrain the bending sensor 200 to avoid the excessive deformation of the bending sensor 200 and ensure the consistency of the deformation of the bending sensor 200 with the outer surface. It can be understood that if the predetermined frictional resistance F is too large, it is not conducive to the bending deformation of the bending sensor 200, and even the bending sensor 200 is prone to be broken; if the predetermined frictional resistance F is too small, the bending sensor 200 cannot be effectively constrained.

[0053] Specifically, the sleeve 400 of the present application is a plastic tube and can be adhered to the outer surface by means of adhesion.

[0054] In the present application, the sleeve 400 is arranged at at least one of the midpoint positions of the two first side surfaces 131 and the midpoint positions of the two second side surfaces 132. It can be understood that if the bending sensor 200 is only arranged on one second side surface 132, the sleeve 400 is arranged at the midpoint position of the second side surface 132 along the length direction of the battery cell 100, that is, Figure 1 the sleeve 400 is arranged at L / 2 on the second side surface 132; if the bending sensor 200 is only arranged on one first side surface 131, the sleeve 400 is arranged at the midpoint position of the first side surface 131 along the width direction of the battery cell 100; if the bending sensor 200 extends to connect with the first side surface 131 and the second side surface 132, the sleeve 400 is arranged at the midpoint positions of the first side surface 131 and the second side surface 132 to which the bending sensor 200 extends, that is, Figure 4 the sleeve 400 is arranged at L / 2 on the second side surface 132 and W / 2 on the first side surface 131.

[0055] It is understandable that the deformation at the midpoint of the first side 131 and the midpoint of the second side 132 is relatively large. By setting the sleeve 400 at the midpoint of the first side 131 and the second side 132, the corresponding bending deformation on the bending sensor 200 can be guided to occur in a consistent manner, thereby helping to improve the measurement accuracy.

[0056] Combination Figures 1 to 5 As shown, specifically, both ends of the bending sensor 200 are positioned close to the edge of either the first side 131 or the second side 132. It can be understood that when the bending sensor 200 is mounted on one of the second side 132, its two ends are respectively positioned close to the two edges of the second side 132 along the length direction of the cell 100 (e.g., ...). Figure 1 (As shown). Similarly, when the bending sensor 200 is mounted on a first side 131, its two ends are respectively positioned close to the two edges of the first side 131 along the width direction of the cell 100. When the bending sensor 200 is "L"-shaped or surrounds the side 130, one end of the bending sensor 200 is positioned close to an edge of the second side 132 along the length direction of the cell 100, while the other end is positioned close to an edge of the first side 131 along the width direction of the cell 100 (e.g., ...). Figure 4 , Figure 5 (As shown).

[0057] Refer again Figure 1 Specifically, in this application, the bending sensor 200 is mounted on the side 130 at a position corresponding to the midpoint between the bottom surface 110 and the top surface 120. It can be understood that the bending sensor 200 is located at position H / 2 along the height direction of the battery cell 100. Considering that the deformation at position H / 2 along the height direction of the battery cell 100 is relatively large during the deformation of the side 130, by placing the bending sensor 200 at the middle position along this height direction, consistent bending deformation can occur at the corresponding position on the bending sensor 200, thereby helping to improve measurement accuracy.

[0058] Combination Figures 1 to 5 As shown, in this application, the battery cell 100 is electrically connected to an external load (not shown) to form a high-voltage path. The battery management system 300 is connected to the high-voltage path to control the on / off state of the high-voltage path. It can be understood that as the degree of bulging on the outer surface continuously increases, the battery management system 300 obtains relevant deformation parameters based on the deformation of the bending sensor 200. When the deformation parameters reach a set critical value, the warning signal issued by the battery management system 300 can be a power-off signal, thereby switching the high-voltage path from an electrically conductive state to an open-circuit state to prevent the battery cell 100 from continuing to be charged and discharged.

[0059] It should be noted that the top surface 120 of the battery cell 100 is also provided with an explosion-proof valve (not shown), which will open to release the internal gas when the internal pressure of the battery cell 100 is too large, so as to reduce the internal pressure of the battery cell 100, and the fire-fighting and ventilation system provided in the environment can be opened at this time. Therefore, it can be understood that when the explosion-proof valve reaches the open state, the bending deformation degree of the bending sensor 200 reaches the maximum, at this time, the deformation parameter detected by the battery management system 300 is the maximum, and the critical value of the battery management system 300 when the warning signal is sent can be set to 85% of the maximum deformation parameter detected by the battery management system 300.

[0060] In some embodiments, the battery cell safety warning system 10 comprises a monitoring instrument 500 and / or an alarm 600 electrically connected with the battery management system 300. It can be understood that by setting the monitoring instrument, the deformation parameter obtained by the battery management system 300 can be remotely and intuitively displayed, so as to facilitate personnel to monitor the pressure change of the battery cell 100 in real time. It can be understood that the warning signal sent by the battery management system 300 can be used as a switch of the alarm 600, and the alarm 600 sends an alarm under the triggering of the warning signal to take warning action. Specifically, the warning signal alarm 600 can be an audible and visual alarm, which reminds by sending warning sound and warning light flashing.

[0061] In the present application, the battery management system 300 is electrically connected with the first end 210 of the bending sensor 200. It can be understood that since the second end 220 is movable relative to the outer surface, and the first end 210 is fixed relative to the outer surface, connecting the battery management system 300 to the first end 210 instead of the second end 220 can avoid the risk of the electrical connection line between the battery management system 300 and the bending sensor 200 being pulled off, so as to maintain the stable electrical connection between them.

[0062] The above only describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An electric cell safety warning system, characterized by, The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system.

2. The battery cell safety warning system of claim 1, wherein, The application relates to an electric core safety early warning system.

3. The battery cell safety warning system of claim 2, wherein, The application relates to an electric core safety early warning system.

4. The battery cell safety warning system of claim 3, wherein, The application relates to an electric core safety early warning system.

5. The battery cell safety warning system of claim 4, wherein, The application relates to an electric core safety early warning system.

6. The battery cell safety warning system of claim 3, wherein, The application relates to an electric core safety early warning system.

7. The battery safety warning system of claim 3, wherein, The application relates to an electric core safety early warning system.

8. The battery cell safety warning system of claim 1, wherein, The application relates to an electric core safety early warning system.

9. The battery cell safety warning system of claim 1, wherein, The application relates to an electric core safety early warning system.

10. The battery cell safety warning system of claim 1, wherein, The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. 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The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. 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The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety early warning system. The application relates to an electric core safety

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