Battery energy locking ring with self-discharge suppression and state detection functions

Abstract

The invention belongs to the technical field of state detection of batteries, and particularly relates to a battery energy locking ring with self-discharge suppression and state detection functions, which comprises a shell, a data processing part, a state detection part, a self-discharge suppression part, a self-discharge suppression part, a self-discharge suppression part and a state detection part, one end of the energy-gathered detection part is fixedly connected with the shell, the other end of the energy-gathered detection part is detachably connected with the shell, the energy-gathered detection part is used for reducing self-discharge of the battery and detecting the state of the battery, and the energy-gathered detection part sends detected battery state data to the data processing part; the locking part is arranged on the shell, and the locking part is used for connecting the shell with the free end of the energy gathering detection part; and the power part is arranged in the shell, the power part is in transmission connection with the locking part, and the power part is used for driving the locking part to lock the free end of the energy gathering detection part. Self-discharge suppression and battery state detection of the battery can be realized at the same time, and the self-discharge suppression and state detection device is convenient to assemble, flexible in structure, high in reliability and suitable for self-discharge suppression and state detection of batteries of different sizes.

Description

Technical Field

[0001] The present invention belongs to the technical field of battery status detection, and in particular relates to a battery energy lock ring with both self-discharge suppression and status detection capabilities. Background Art

[0002] Lithium-ion batteries, with their significant advantages such as high energy density and long cycle life, offer promising development prospects. However, current battery lifespan and safety issues hinder their rapid development. For one thing, both energy storage and power batteries spend more than half their time in storage, and long-term self-discharge during storage results in significant energy loss. Although lithium-ion batteries are considered to have low self-discharge, authoritative journals indicate that some commercial batteries reach the end of their lifespan after only four years of storage, far below expectations. Furthermore, silicon-based and lithium metal batteries, which have attracted significant attention for their pursuit of higher energy density, have been reported to exhibit even more severe self-discharge. Therefore, it is imperative to develop measures to mitigate battery self-discharge. Furthermore, recent incidents of spontaneous combustion of batteries while stored have resulted in casualties and property damage, raising the bar for monitoring battery storage status. To further advance battery development, a technology that can both mitigate self-discharge and monitor battery status is urgently needed.

[0003] Currently, there are few strategies on the market to suppress battery self-discharge. While methods such as coating the battery's positive electrode with a protective layer and optimizing electrolyte additives can reduce capacity loss during storage and inhibit self-discharge, these methods are costly and hinder market adoption. Battery status detection is typically based on current, voltage, or temperature signals. When a battery is idle, the external current is zero, making it difficult to accurately predict the battery's status based solely on voltage and temperature signals.

[0004] To this end, a battery energy lock loop with both self-discharge suppression and status detection is proposed. Summary of the Invention

[0005] The object of the present invention is to provide a battery energy lock ring with both self-discharge suppression and status detection to solve the above problems.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] A battery energy lock ring with both self-discharge suppression and status detection, comprising:

[0008] shell,

[0009] a data processing unit, disposed in the housing, for processing received data;

[0010] an energy-gathering detection unit, one end of which is fixedly connected to the housing and the other end of which is detachably connected to the housing, the energy-gathering detection unit being used to reduce the self-discharge of the battery and detect the battery status, and the energy-gathering detection unit sending the detected battery status data to the data processing unit;

[0011] a locking portion, provided on the housing, and configured to connect the housing and the free end of the energy focusing detection portion;

[0012] The power part is arranged in the shell, the power part is in transmission connection with the locking part, and the power part is used to drive the locking part to lock the free end of the energy focusing detection part.

[0013] In the battery energy lock ring with both self-discharge suppression and status detection of the present invention, the energy gathering detection unit includes:

[0014] an energy-gathering belt, one end of which is fixedly connected to the housing and the other end of which is detachably connected, and the energy-gathering belt is used to apply pressure to the battery;

[0015] A pressure sensor is arranged inside the energy gathering belt, the pressure sensor is electrically connected to the data processing unit, and is used to detect the pressure of the battery and transmit data to the data processing unit.

[0016] In the battery energy lock ring with both self-discharge suppression and status detection of the present invention, the energy gathering belt includes:

[0017] Two parallel and symmetrically arranged support layers, the pressure sensor is arranged between the two support layers, and the support layers are used to apply pressure to the battery;

[0018] The outer coating layer is coated on the sides of the two support layers that are away from each other, and the outer coating layer is used to protect the support layers.

[0019] In the battery energy lock ring with both self-discharge suppression and status detection of the present invention, the power unit includes:

[0020] A crossbeam is slidably disposed in the housing, the crossbeam is arranged parallel to the energy-gathering belt, and one end of the locking portion extends into the housing and is fixedly connected to the crossbeam;

[0021] Two springs are respectively arranged at the two ends of the beam, and the two springs are arranged in parallel. One end of the spring is fixed to the beam, and the other end is fixed to the inner wall of the shell. The spring pulls the beam to move, so that the locking part fits with the outer wall of the shell to fix the energy gathering belt.

[0022] In the battery lock ring with both self-discharge suppression and status detection of the present invention, two first through slots are opened on the outer shell, and the two first through slots are parallel and symmetrically arranged. The two ends of the beam respectively pass through the first through slots and are coaxially fixed with sliding buttons. The beam is slidably connected in the first through slots, and the beam slides along the tension direction of the spring.

[0023] In the battery energy lock ring with both self-discharge suppression and status detection of the present invention, the locking portion includes:

[0024] a second through slot, formed on one side of the housing;

[0025] Two telescopic rods are slidably connected in the second through slot, the telescopic rods slide along the tension direction of the spring, the two telescopic rods are respectively located at two ends of the second through slot, and one end of the telescopic rod extends into the housing and is fixedly connected to the crossbeam;

[0026] The clamping rod is fixedly connected between the two telescopic rods, and the energy gathering belt is located between the clamping rod and the outer side wall of the shell.

[0027] In the battery energy lock ring with both self-discharge suppression and status detection of the present invention, the clamping rod includes:

[0028] A metal rod fixedly connected between the two telescopic rods;

[0029] A polymer coating is coated on the outer side wall of the metal rod.

[0030] In the battery energy lock ring with both self-discharge suppression and status detection of the present invention, the data processing unit includes:

[0031] a data processor, fixedly mounted in the housing;

[0032] a power supply, electrically connected to the data processor via a cable, the power supply being used to supply power to the data processor;

[0033] A pressure data receiver is electrically connected to the data processor via a cable. The pressure data receiver is electrically connected to the pressure sensor. The pressure sensor is used to receive pressure data measured by the pressure sensor and transmit the data to the data processor.

[0034] In the battery lock ring with both self-discharge suppression and status detection of the present invention, a display screen is fixedly mounted on the outer wall of the shell, the display screen is electrically connected to the data processor, and the display screen is used to display the data processing results of the data processor.

[0035] In the battery energy lock ring with both self-discharge suppression and status detection of the present invention, a power button is fixedly installed on the outer wall of the shell, and the power button is electrically connected to the power supply for controlling the on and off of the power supply.

[0036] Compared with the prior art, the present invention has the following advantages and technical effects:

[0037] When the device of the present invention is in use, the battery is placed under the shell, and the battery is wrapped by the energy focusing detection part, and the other end of the energy focusing detection part is connected to the shell. At this time, the energy focusing detection part applies pressure to the battery, thereby suppressing the self-discharge of the battery; in this process, the change of the battery pressure is detected by the energy focusing detection part, and the data processing part measures the current state of charge of the battery according to the preset relationship between the change of battery stress and the battery state of charge.

[0038] The present invention can simultaneously realize battery self-discharge suppression and battery status detection, and has convenient assembly, flexible structure, and high reliability, and can adapt to self-discharge suppression and status detection of batteries of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive work.

[0040] Figure 1 This is a schematic diagram of the overall structure of the present invention when it is not in use;

[0041] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0042] Figure 3 for Figure 1 Schematic diagram of the structure at B in the middle;

[0043] Figure 4 This is a schematic diagram of the overall structure of the present invention when in use;

[0044] Figure 5 for Figure 4 A partial enlarged view of point C in the middle;

[0045] Figure 6 Schematic diagram of the internal structure of the shell;

[0046] Figure 7 The stress of the ternary silicon-carbon battery changes with the state of charge;

[0047] Figure 8It is a line graph showing the change of battery capacity retention rate with storage times;

[0048] Figure 9 A bar chart showing the capacity retention rate of the battery under different pressure conditions within a day;

[0049] Among them, 1. Energy-gathering belt; 2. Shell; 3. Display screen; 4. Clamping rod; 5. Sliding button; 6. Power button; 7. Indicator light; 8. Metal rod; 9. Polymer coating; 10. Telescopic rod; 11. External coating; 12. Support layer; 13. Pressure sensor; 14. Pressure data receiver; 15. Cable; 16. Data processor; 17. Power supply; 18. Spring; 19. Beam. DETAILED DESCRIPTION

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0051] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0052] Reference Figures 1 to 6 The present invention discloses a battery energy lock ring with both self-discharge suppression and status detection, comprising:

[0053] Shell 2,

[0054] A data processing unit, provided in the housing 2, for processing received data;

[0055] An energy-gathering detection unit, one end of which is fixedly connected to the housing 2 and the other end of which is detachably connected to the housing 2. The energy-gathering detection unit is used to reduce the self-discharge of the battery and detect the battery status. The energy-gathering detection unit sends the detected battery status data to the data processing unit.

[0056] A locking portion is provided on the housing 2 and is used to connect the housing 2 and the free end of the energy focusing detection portion;

[0057] The power part is arranged in the housing 2 and is in transmission connection with the locking part. The power part is used to drive the locking part to lock the free end of the energy focusing detection part.

[0058] When the device of the present invention is in use, the battery is placed under the shell 2, and the battery is wrapped by the energy focusing detection part, and the other end of the energy focusing detection part is connected to the shell 2. At this time, the energy focusing detection part applies pressure to the battery, thereby suppressing the self-discharge of the battery; in this process, the change of the battery pressure is detected by the energy focusing detection part, and the data processing part measures the current state of charge of the battery according to the preset relationship between the change of battery stress and the battery state of charge.

[0059] The present invention can simultaneously realize battery self-discharge suppression and battery status detection, and has convenient assembly, flexible structure, and high reliability, and can adapt to self-discharge suppression and status detection of batteries of different sizes.

[0060] In an optional solution, the energy focusing detection unit includes:

[0061] An energy-gathering belt 1, one end of which is fixedly connected to the housing 2, and the other end of which is detachably connected, and is used to apply pressure to the battery;

[0062] The pressure sensor 13 is disposed inside the energy gathering belt 1 and is electrically connected to the data processing unit. The pressure sensor 13 is used to detect the pressure of the battery and transmit the data to the data processing unit.

[0063] In an optional solution, the energy-gathering belt 1 includes:

[0064] Two parallel and symmetrical support layers 12, with a pressure sensor 13 disposed between the two support layers 12, and the support layers 12 are used to apply pressure to the battery;

[0065] The outer coating layer 11 is coated on the sides of the two supporting layers 12 that are away from each other. The outer coating layer 11 is used to protect the supporting layers 12 .

[0066] In an optional solution, the power unit includes:

[0067] The crossbeam 19 is slidably disposed in the housing 2. The crossbeam 19 is arranged parallel to the energy-gathering belt 1. One end of the locking portion extends into the housing 2 and is fixedly connected to the crossbeam 19.

[0068] Two springs 18 are respectively arranged at the two ends of the beam 19. The two springs 18 are arranged in parallel. One end of the spring 18 is fixed to the beam 19, and the other end is fixed to the inner wall of the shell 2. The spring 18 pulls the beam 19 to move, so that the locking part fits with the outer wall of the shell 2 to fix the energy gathering belt 1.

[0069] In an optional solution, two first through slots are provided on the housing 2, and the two first through slots are parallel and symmetrically arranged. The two ends of the beam 19 respectively pass through the first through slots and are coaxially fixed with a sliding button 5. The beam 19 is slidably connected in the first through slots, and the beam 19 slides along the tension direction of the spring 18.

[0070] In an optional solution, the locking portion includes:

[0071] A second through slot is provided on one side of the housing 2;

[0072] Two telescopic rods 10 are slidably connected in the second through slot. The telescopic rods 10 slide along the tension direction of the spring 18. The two telescopic rods 10 are respectively located at the two ends of the second through slot. One end of the telescopic rod 10 extends into the housing 2 and is fixed to the crossbeam 19.

[0073] The clamping rod 4 is fixed between the two telescopic rods 10 , and the energy gathering belt 1 is located between the clamping rod 4 and the outer side wall of the shell 2 .

[0074] Push the sliding button 5, the sliding button 5 pushes the clamping rod 4 away from the shell 2, inserts the movable end of the energy gathering belt 1 between the clamping rod 4 and the shell 2 and tightens it, releases the sliding button 5, and the clamping rod 4 clamps the energy gathering belt 1 between the clamping rod 4 and the shell 2.

[0075] In an optional solution, the clamping rod 4 includes:

[0076] The metal rod 8 is fixed between the two telescopic rods 10;

[0077] The polymer coating 9 is coated on the outer side wall of the metal rod 8 .

[0078] The polymer coating 9 is used to enhance the friction of the metal rod 8;

[0079] In an optional solution, the data processing unit includes:

[0080] A data processor 16 is fixedly mounted in the housing 2;

[0081] A power supply 17 is electrically connected to the data processor 16 via the cable 15 , and is used to supply power to the data processor 16 ;

[0082] The pressure data receiver 14 is electrically connected to the data processor 16 via a cable 15 . The pressure data receiver 14 is electrically connected to the pressure sensor 13 . The pressure sensor 13 is used to receive pressure data measured by the pressure sensor 13 and transmit the data to the data processor 16 .

[0083] In an optional solution, a display screen 3 is fixedly mounted on the outer wall of the housing 2 . The display screen 3 is electrically connected to the data processor 16 . The display screen 3 is used to display the data processing results of the data processor 16 .

[0084] In an optional solution, a power button 6 is fixedly mounted on the outer wall of the housing 2 , and the power button 6 is electrically connected to the power supply 17 for controlling the on and off of the power supply 17 .

[0085] Directions:

[0086] Turn on the power through the power button 6, place the battery between the energy gathering belt 1 and the shell 2, after the energy gathering belt 1 covers the battery, push the sliding button 5, the sliding button 5 pushes the clamping rod 4 away from the shell 2, and the movable end of the energy gathering belt 1 is inserted between the clamping rod 4 and the shell 2 and tightened, release the sliding button 5, the clamping rod 4 clamps the energy gathering belt 1 between the clamping rod 4 and the shell 2, at this time the energy gathering belt 1 applies pressure to the battery, thereby realizing the function of suppressing battery self-discharge. During this process, the pressure sensor 13 detects the pressure data of the battery and transmits it to the data processor 16 through the pressure data receiver 14. The data processor 16 calculates the battery state of charge through the preset relationship between the battery stress and the battery state of charge, and displays it through the display screen 3.

[0087] One specific example:

[0088] Reference Figure 7-9 , Figure 7 The stress of the ternary silicon-carbon battery changes with the state of charge curve. The stress of the ternary silicon-carbon battery changes with the state of charge curve under pressure. The relationship between the battery stress (y) and the battery state of charge (x) can be obtained by function fitting:

[0089] y=6.05e4*x 9 -2.72e5*x 8 +5.06e5*x 7 -5e5*x 6 +2.82e5*x 5 -9.09e4*x 4 +

[0090] 1.61e4*x 3 -1370*x 2 +72.99*x+321.1 (1),

[0091] Substituting the battery stress into equation (1) can obtain the battery state of charge.

[0092] Figure 8 It is a line graph showing the change of capacity retention rate of ternary silicon-carbon battery with storage times; Figure 9 This is a bar chart of the capacity retention rate of ternary silicon-carbon batteries under different pressure conditions within one day.

[0093] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0094] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A battery energy lock ring with both self-discharge suppression and status detection, characterized in that: include: housing (2), A data processing unit, disposed in the housing (2), for processing received data; An energy-gathering detection unit, one end of which is fixedly connected to the housing (2) and the other end of which is detachably connected to the housing (2), the energy-gathering detection unit being used to reduce the self-discharge of the battery and detect the battery status, and the energy-gathering detection unit sending the detected battery status data to the data processing unit; a locking portion, arranged on the housing (2), the locking portion being used to connect the housing (2) and the free end of the energy focusing detection portion; A power unit is arranged in the housing (2), the power unit is in transmission connection with the locking unit, and the power unit is used to drive the locking unit to lock the free end of the energy gathering detection unit.

2. A battery energy lock ring with both self-discharge suppression and status detection according to claim 1, characterized in that: The energy focusing detection unit includes: An energy gathering belt (1), one end of the energy gathering belt (1) being fixedly connected to the housing (2), the other end of the energy gathering belt (1) being detachably connected, and the energy gathering belt (1) being used to apply pressure to the battery; A pressure sensor (13) is arranged inside the energy gathering belt (1), the pressure sensor (13) is electrically connected to the data processing unit, and the pressure sensor (13) is used to detect the pressure of the battery and transmit data to the data processing unit.

3. A battery energy lock ring with both self-discharge suppression and status detection according to claim 2, characterized in that: The energy-gathering belt (1) comprises: Two parallel and symmetrically arranged support layers (12), the pressure sensor (13) being arranged between the two support layers (12), and the support layers (12) being used to apply pressure to the battery; An outer coating (11) is coated on the sides of the two support layers (12) that are away from each other. The outer coating (11) is used to protect the support layers (12).

4. A battery energy lock ring with both self-discharge suppression and status detection according to claim 2, characterized in that: The power unit includes: A crossbeam (19) is slidably disposed in the housing (2), the crossbeam (19) being arranged parallel to the energy-gathering belt (1), and one end of the locking portion extending into the housing (2) and fixedly connected to the crossbeam (19); Two springs (18) are respectively arranged at the two ends of the crossbeam (19). The two springs (18) are arranged in parallel. One end of the spring (18) is fixedly connected to the crossbeam (19), and the other end is fixedly connected to the inner wall of the shell (2). The spring (18) pulls the crossbeam (19) to move, so that the locking part fits with the outer wall of the shell (2) to fix the energy gathering belt (1).

5. A battery energy lock ring with both self-discharge suppression and status detection according to claim 4, characterized in that: The housing (2) is provided with two first through slots, which are parallel and symmetrically arranged. The two ends of the crossbeam (19) respectively pass through the first through slots and are coaxially fixed with a sliding button (5). The crossbeam (19) is slidably connected in the first through slots, and the crossbeam (19) slides along the pulling direction of the spring (18).

6. A battery energy lock ring with both self-discharge suppression and status detection according to claim 4, characterized in that: The locking portion includes: A second through slot is provided on one side of the housing (2); Two telescopic rods (10) are slidably connected in the second through slot, the telescopic rods (10) slide along the pulling direction of the spring (18), the two telescopic rods (10) are respectively located at two ends of the second through slot, and one end of the telescopic rod (10) extends into the housing (2) and is fixed to the crossbeam (19); The clamping rod (4) is fixedly connected between the two telescopic rods (10), and the energy gathering belt (1) is located between the clamping rod (4) and the outer side wall of the shell (2).

7. A battery energy lock ring with both self-discharge suppression and status detection according to claim 6, characterized in that: The clamping rod (4) comprises: A metal rod (8) fixedly connected between the two telescopic rods (10); A polymer coating (9) is coated on the outer side wall of the metal rod (8).

8. The battery energy lock ring with both self-discharge suppression and status detection according to claim 2, characterized in that: The data processing unit includes: a data processor (16) fixedly mounted in the housing (2); a power supply (17), electrically connected to the data processor (16) via a cable (15), the power supply (17) being used to supply power to the data processor (16); A pressure data receiver (14) is electrically connected to the data processor (16) via a cable (15), and the pressure data receiver (14) is electrically connected to the pressure sensor (13). The pressure sensor (13) is used to receive pressure data measured by the pressure sensor (13) and transmit the data to the data processor (16).

9. A battery energy lock ring with both self-discharge suppression and status detection according to claim 8, characterized in that: A display screen (3) is fixedly mounted on the outer wall of the housing (2), the display screen (3) is electrically connected to the data processor (16), and the display screen (3) is used to display the data processing results of the data processor (16).

10. The battery energy lock ring with both self-discharge suppression and status detection according to claim 8, characterized in that: A power button (6) is fixedly mounted on the outer wall of the housing (2), and the power button (6) is electrically connected to the power supply (17) and is used to control the on and off of the power supply (17).

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