Battery and electronic equipment

Abstract

The invention discloses a battery and electronic equipment, the battery comprises a battery body, a battery protection circuit board and electrolytic glue, the battery body is fixed on an electronic product through the electrolytic glue, a first connecting end of the battery protection circuit board is connected with a positive electrode connecting end of the battery body, and a second connecting end of the battery protection circuit board is connected with a negative electrode connecting end. The second connecting end of the battery protection circuit board is connected with the negative electrode connecting end of the battery body, the third connecting end of the battery protection circuit board is used for connecting the positive electrode end of the electrolytic glue, and the fourth connecting end of the battery protection circuit board is used for connecting the negative electrode end of the electrolytic glue or a metal shell of the battery body; and the battery protection circuit board is used for acquiring the power supply voltage of the battery body through the first connecting end and the second connecting end, and outputting the processed power supply voltage to the electrolytic glue from the third connecting end and the fourth connecting end, so that the electrolytic glue is stripped from the battery body. The battery replacement efficiency of the electronic product comprising the battery is improved, and the stability and safety of the battery structure are improved.

Description

Technical Field

[0001] This invention relates to the field of battery technology, and more particularly to a battery and an electronic device. Background Technology

[0002] As electronic products increasingly demand higher safety standards for battery structures, lithium batteries must be fully secured with high-viscosity adhesive when installed in casings or complete devices. This is to prevent the battery from igniting or burning due to violent displacement or even detachment during drops or vibrations. However, while high-viscosity adhesive provides reliable fixation, it also presents challenges for manufacturing and after-sales maintenance: significant external force is required to peel the battery off, which can easily deform or damage the casing, deform the battery itself, or even cause it to break and burn. Therefore, balancing the secure fixation and removable / replaceable nature of the battery adhesive has become a core challenge in the processing of lithium batteries and finished electronic products.

[0003] Current methods for peeling off the adhesive after lithium battery mounting have significant shortcomings, failing to effectively address the dual requirements of "efficiency" and "safety." For example, the external heating method involves heating the battery and the entire device in a dedicated furnace, using the high temperature to embrittle the adhesive and achieve peeling. The core drawbacks of this method include: First, low operational efficiency: the heating process is time-consuming, severely impacting the workflow. Second, high safety risks: improper temperature settings or operational errors can directly cause the battery to catch fire, with serious consequences. Another method is the alcohol immersion method, which involves dripping alcohol into the gap between the battery and the casing / device, allowing the alcohol to corrode the adhesive and complete the peeling. The core drawbacks of this method also include: First, low operational efficiency: the alcohol corrosion process requires a long waiting time, resulting in low efficiency. Second, high risk of residue: alcohol is corrosive; if cleaning is not thorough after replacement, residue can corrode the battery cells and electronic components, potentially leading to battery failure or even fire. Finally, the force-pulling method involves applying a large vertical force to directly pull the battery off the adhesive. The core drawbacks of this method include: First, narrow applicability: it is only effective for low-tack adhesives and has poor results for products using high-tack adhesives, such as mobile phones. Second, high risk of damage: the battery and casing are prone to severe deformation during the pulling process, both of which are at extremely high risk of damage. Third, significant cost loss: the deformed battery and casing cannot be restored and reused and must be scrapped, increasing material costs.

[0004] In summary, the detachment of the battery adhesive in existing technologies reduces the stability and safety of the battery structure, and also reduces the battery replacement efficiency of electronic products containing batteries. Summary of the Invention

[0005] This invention provides a battery and an electronic device to solve the problem in the prior art where the removal of the battery backing adhesive reduces the stability and safety of the battery structure and also reduces the battery replacement efficiency of electronic products containing batteries.

[0006] To address the above problems, in one embodiment, a battery is provided, the battery comprising: The battery body, battery protection circuit board, and electrolytic adhesive are provided. The battery body is fixed to the electronic product by the electrolytic adhesive. The first connection terminal of the battery protection circuit board is connected to the positive terminal of the battery body. The second connection terminal of the battery protection circuit board is connected to the negative terminal of the battery body. The third connection terminal of the battery protection circuit board is used to connect to the positive terminal of the electrolytic adhesive. The fourth connection terminal of the battery protection circuit board is used to connect to the negative terminal of the electrolytic adhesive or the metal casing of the battery body. The battery protection circuit board is used to obtain the power supply voltage of the battery body through the first connection terminal and the second connection terminal, and output the processed power supply voltage to the electrolytic adhesive from the third connection terminal and the fourth connection terminal, so that the electrolytic adhesive is peeled off from the battery body.

[0007] In one embodiment, the battery protection circuit board includes: A first substrate has a circuit layer comprising a battery protection circuit, a power supply control circuit, and a voltage adjustment circuit. The positive input terminal of the battery protection circuit serves as the first connection terminal, and the negative input terminal serves as the second connection terminal. The output terminal of the battery protection circuit is used to output a power supply signal. The power supply control circuit has a power supply terminal connected to the positive terminal of the battery body, a communication terminal for acquiring an electrolytic adhesive peeling command, and a control terminal for outputting a wake-up command to the voltage adjustment circuit to wake it up. The power supply terminal of the voltage adjustment circuit is connected to the positive terminal of the battery body, and the positive output terminal of the voltage adjustment circuit is used to output the processed power supply voltage. The negative output terminal of the voltage adjustment circuit serves as the fourth connection terminal.

[0008] In one embodiment, the power supply control circuit includes: A first control chip and a first switching transistor are used. The communication terminal of the first control chip is used to connect to the control host. The power supply terminal of the first control chip is connected to the output terminal of the battery protection circuit through a step-down branch. The enable terminal of the first control chip is connected to the enable terminal of the voltage adjustment circuit to output an enable signal. The control output terminal of the first control chip is connected to the control terminal of the first switching transistor. The input terminal of the first switching transistor is connected to the positive output terminal of the voltage adjustment circuit. The output terminal of the first switching transistor serves as the third connection terminal.

[0009] In one embodiment, the first control chip is configured to send a disconnect control signal to the control terminal of the first switch when it is determined that the voltage adjustment circuit has been falsely woken up, so as to control the first switch to disconnect and prevent the voltage adjustment circuit from being falsely woken up.

[0010] In one embodiment, the first control chip is configured to send a disconnect control signal or a turn-on control signal through the control terminal of the first switch transistor when the voltage adjustment circuit has no wake-up function, so as to control the first switch transistor to turn off or on.

[0011] In one embodiment, the voltage adjustment circuit includes a boost circuit, a voltage regulator circuit, or a buck circuit.

[0012] In one embodiment, the boost circuit includes: The system includes a boost converter chip, a second switching transistor, and a boost circuit. The enable terminal of the boost converter chip serves as the enable terminal of the voltage adjustment circuit. The first output terminal of the boost converter chip is connected to the control terminal of the second switching transistor. The input terminal of the second switching transistor is connected to the input terminal of the boost converter chip through a preset current detection branch. The input terminal of the boost converter chip serves as the power supply terminal of the voltage adjustment circuit. The second output terminal of the boost chip is connected to the first terminal of the boost branch and the output terminal of the second switching transistor, respectively, and the second output terminal of the boost chip serves as the positive output terminal of the voltage adjustment circuit; the feedback terminal of the boost chip is connected to the second terminal of the boost branch, and the third terminal of the boost branch serves as the negative output terminal of the voltage adjustment circuit, or the third terminal of the boost branch is connected to one end of a preset first current limiting branch, and the other end of the current limiting branch serves as the negative output terminal of the voltage adjustment circuit.

[0013] In one embodiment, the boost chip is configured to obtain an enable signal from the enable terminal of the boost chip, send a conduction control signal to the control terminal of the second switch, control the second switch to conduct, so that the second output terminal of the boost chip outputs the boosted supply voltage through the boost branch, thereby realizing the normal wake-up of the boost circuit.

[0014] In one embodiment, the battery further includes: The second substrate has a first pad connected to the third connection terminal and a second pad connected to the positive terminal of the electrolytic adhesive. The first pad and the second pad are electrically connected. A third substrate, wherein a third pad on the third substrate is connected to the fourth connection terminal, and a fourth pad on the third substrate is connected to the negative terminal of the electrolytic adhesive or the metal casing of the battery body, and the third pad and the fourth pad are electrically connected.

[0015] In one embodiment, the battery protection circuit includes: The system comprises a second control chip, a third switch, and a fourth switch. The power supply terminal of the second control chip is connected to one end of a preset second current-limiting branch. The other end of the second current-limiting branch serves as the first connection terminal of the battery protection circuit board and as the positive power supply terminal of the load of the battery protection circuit board. The first control terminal of the second control chip is connected to the control terminal of the third switch. The output terminal of the third switch serves as the second connection terminal of the battery protection circuit board. The input terminal of the third switch is connected to the output terminal of the fourth switch. The control terminal of the fourth switch is connected to the second control terminal of the second control chip. The input terminal of the fourth switch serves as the negative power supply terminal of the load of the battery protection circuit board.

[0016] In one embodiment, an electronic device is provided in which the battery is disposed.

[0017] This invention provides a battery and an electronic device. By selecting electrolytic adhesive as the backing adhesive of the battery, a power supply voltage port (a third connection terminal and a fourth connection terminal) is provided on the battery protection board to provide a dedicated power supply voltage for the electrolytic adhesive. The voltage source for the dedicated power supply voltage for the electrolytic adhesive is taken from the battery body through the first and second connection terminals of the battery protection board. This allows for easy separation of the electrolytic adhesive from the battery body by sending a simple operation command to the battery protection board when the battery needs to be replaced, improving the battery replacement efficiency of electronic products containing batteries. Furthermore, the adhesion between the electrolytic adhesive and the battery body decreases after being energized, allowing for separation of the electrolytic adhesive without forceful pulling, thus improving the stability and safety of the battery structure. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram showing the connection between the positive terminal of the battery protection circuit board and the electrolytic adhesive in one embodiment of the present invention; Figure 2 This is a schematic diagram showing the connection between the battery protection circuit board and the negative terminal of the electrolytic adhesive in one embodiment of the present invention; Figure 3 This is a schematic diagram of the internal circuit connection of the battery protection circuit board in one embodiment of the present invention; Figure 4 This is a schematic diagram of the electrolytic adhesive in one embodiment of the present invention; Figure 5 This is a schematic diagram illustrating the working principle of the electrolytic adhesive in a battery according to an embodiment of the present invention; The symbols are explained as follows: 1. Battery protection circuit board; 2. Battery body; 3. Positive terminal of electrolytic adhesive; 4. Electrolytic adhesive; 5. Second substrate; 6. Negative terminal of electrolytic adhesive; 7. Third substrate. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be understood that the invention can be embodied in various forms and should not be construed as being limited to the embodiments set forth herein. Rather, providing these embodiments will make the disclosure thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, for clarity, the dimensions and relative dimensions of layers and regions may be exaggerated. The same reference numerals denote the same elements throughout.

[0022] It should be understood that when an element or layer is referred to as "on," "adjacent to," "connected to," or "coupled to" other elements or layers, it may be directly on, adjacent to, connected to, or coupled to other elements or layers, or there may be intervening elements or layers. Conversely, when an element is referred to as "directly on," "directly adjacent to," "directly connected to," or "directly coupled to" other elements or layers, there are no intervening elements or layers. It should be understood that although the terms first, second, third, etc., may be used to describe various elements, components, areas, layers, and / or portions, these elements, components, areas, layers, and / or portions should not be limited by these terms. These terms are only used to distinguish one element, component, area, layer, or portion from another element, component, area, layer, or portion. Therefore, without departing from the teachings of this invention, the first element, component, area, layer, or portion discussed below may be referred to as the second element, component, area, layer, or portion.

[0023] Spatial relation terms such as “below,” “under,” “below,” “under,” “above,” “above,” etc., are used herein for convenience of description to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms are intended to also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, then the element or feature described as “below,” “under,” or “below” other elements or features will be oriented “above” other elements or features. Therefore, the exemplary terms “below” and “under” can include both above and below orientations. The device may be otherwise oriented (rotated 90 degrees or otherwise) and the spatial descriptive terms used herein will be interpreted accordingly.

[0024] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. When used herein, the singular forms “a,” “an,” and “the” are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising” and / or “including,” when used in this specification, identify the presence of the stated features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups. When used herein, the term “and / or” includes any and all combinations of the associated listed items.

[0025] To fully understand this invention, detailed structures and steps will be presented in the following description to illustrate the technical solution proposed by this invention. Preferred embodiments of the invention are described in detail below; however, in addition to these detailed descriptions, the invention may have other embodiments.

[0026] In one embodiment, such as Figure 1 and Figure 2 As shown, a battery is provided, the battery comprising: The battery body 2, the battery protection circuit board 1, and the electrolytic adhesive 4 are provided. The battery body 2 is fixed to the electronic product by the electrolytic adhesive 4. The first connection terminal B+ of the battery protection circuit board 1 is connected to the positive terminal B1+ of the battery body 2. The second connection terminal B- of the battery protection circuit board 1 is connected to the negative terminal B1- of the battery body 2. The third connection terminal V+ of the battery protection circuit board 1 is used to connect to the positive terminal 3 of the electrolytic adhesive. The fourth connection terminal V- of the battery protection circuit board 1 is used to connect to the negative terminal 6 of the electrolytic adhesive or the metal casing of the battery body 2. The battery protection circuit board 1 is used to obtain the power supply voltage of the battery body 2 through the first connection terminal and the second connection terminal, and output the processed power supply voltage to the electrolytic adhesive 4 from the third connection terminal and the fourth connection terminal, so that the electrolytic adhesive 4 is peeled off from the battery body 2.

[0027] The battery body 2 is a battery used to power electronic devices and is fixedly mounted on the electronic devices by electrolytic adhesive 4. Electrolytic adhesive 4 is an adhesive tape containing conductive materials (including cations and anions). When voltage is applied, the conductive materials of the electrolytic adhesive 4 undergo an electrolytic reaction. Cations move to the cathode side and undergo a reduction reaction, while anions move to the anode side and undergo an oxidation reaction, thereby weakening the adhesive interface, reducing the adhesiveness of the tape, and making it easier to peel off from the substrate. One type of electrolytic adhesive material is described below. Figure 4 As shown, it includes a release film layer, an electrolytic adhesive layer, and a composite aluminum foil layer. During use, the release film layer is peeled off to expose the electrolytic adhesive layer, which is then attached and fixed to the object. The battery protection circuit board 1 is a safety control component for rechargeable battery packs. Its core function is to monitor the battery's voltage, current, and temperature, and to cut off the circuit in case of abnormalities to prevent battery damage or safety accidents.

[0028] When a user needs to replace the battery, the principle behind the adhesive peeling off the battery is as follows: By sending control commands to the battery protection board, the battery protection board obtains the power supply voltage of the battery body 2 through the first and second connection terminals, and then outputs the processed power supply voltage from the third and fourth connection terminals. This power supply voltage is applied to the positive and negative terminals of the electrolytic adhesive, which reduces the adhesiveness of the tape and makes it peelable from the battery body 2.

[0029] In this embodiment, the battery uses electrolytic adhesive 4 as the backing adhesive. A dedicated power supply voltage port for the electrolytic adhesive 4, namely the third and fourth connection terminals, is provided on the battery protection board. The voltage source for the dedicated electrolytic adhesive 4 is obtained from the battery body 2 via the first and second connection terminals of the battery protection board. This allows for easy separation of the electrolytic adhesive 4 from the battery body 2 by sending a simple operation command to the battery protection board when the battery needs to be replaced, improving the battery replacement efficiency of electronic products containing batteries. Furthermore, the adhesion between the electrolytic adhesive 4 and the battery body 2 decreases after being energized, allowing for easy separation without forceful pulling, thus enhancing the stability and safety of the battery structure.

[0030] In one embodiment, such as Figure 3 As shown, the battery protection circuit board 1 includes: A first substrate has a circuit layer comprising a battery protection circuit, a power supply control circuit, and a voltage adjustment circuit. The positive input terminal of the battery protection circuit serves as the first connection terminal, and the negative input terminal serves as the second connection terminal. The output terminals P+ and P- of the battery protection circuit are used to output power supply signals. The power supply control circuit has a power supply terminal connected to the positive terminal of the battery body 2. The communication terminals SDA and SCL of the power supply control circuit are used to acquire the peeling command of the electrolytic adhesive 4. The control terminal EN of the power supply control circuit is used to output the wake-up command of the voltage adjustment circuit to wake up the voltage adjustment circuit. The power supply terminal of the voltage adjustment circuit is connected to the positive terminal of the battery body 2. The positive output terminal V+ of the voltage adjustment circuit is used to output the processed power supply voltage, and the negative output terminal V- of the voltage adjustment circuit serves as the fourth connection terminal.

[0031] When the battery needs to be replaced, the working principle of the battery protection circuit board 1 is as follows: The battery containing the battery protection circuit board 1 is connected to the main unit (i.e., electronic product). The main unit sends control commands to the power supply control circuit through the communication terminals SDA and SCL. After receiving the commands, the power supply control circuit wakes up the voltage adjustment circuit. After the voltage adjustment circuit is awakened, it processes the power supply voltage from the battery body 2 and outputs the processed power supply voltage, which is applied to the positive terminal 3 and the negative terminal of the electrolytic adhesive, so that the adhesive tape is less sticky and can be peeled off from the battery body 2.

[0032] When the battery needs to be charged and discharged, the battery protection circuit of the battery protection circuit board 1 is connected to the load or charger to realize the charging and discharging of the battery.

[0033] In this embodiment, by adding a power supply control circuit and a voltage adjustment circuit to the battery protection circuit board 1, and setting a power supply voltage port, namely the third connection terminal and the fourth connection terminal, that can provide a dedicated power supply voltage for the electrolytic adhesive 4 on the voltage adjustment circuit, a dedicated power supply voltage for the electrolytic adhesive 4 can be achieved.

[0034] In one embodiment, such as Figure 3 As shown, the power supply control circuit includes: The first control chip U2 and the first switching transistor Q3 are connected. The communication terminals SDA and SCL of the first control chip are used to connect to the control host. The power supply terminal VDD of the first control chip is connected to the output terminal P+ of the battery protection circuit through the step-down branch (R3, C2). The enable terminal EN of the first control chip is connected to the enable terminal of the voltage adjustment circuit to output an enable signal. The control output terminal ON of the first control chip is connected to the control terminal of the first switching transistor. The input terminal of the first switching transistor is connected to the positive output terminal of the voltage adjustment circuit. The output terminal of the first switching transistor serves as the third connection terminal.

[0035] The step-down branch includes resistor R3 and capacitor C2. One end of resistor R3 is connected to the output terminal of the battery protection circuit, and the other end of resistor R3 is connected to the power supply terminal VDD of the first control chip and one end of capacitor C2. The other end of capacitor C2 is connected to the ground terminal VSS of the first control chip.

[0036] The operation of the above power supply control circuit includes: After the main unit is connected to the battery, it sends commands to the first control chip U2 via communication terminals SCL and SDA. Upon receiving the commands, the first control chip U2 wakes up the voltage adjustment circuit, which can regulate the battery's supply voltage to a constant 9V output. Simultaneously, the first control chip U2 sends a low-level command to the control terminal of the first switching transistor Q3, turning on Q3 and maintaining a constant 9V voltage between the positive output terminal V+ and the negative output terminal V- of the voltage adjustment circuit. Figure 5 As shown, this makes the electrolytic adhesive 4 on the battery conductive, and the electrolytic adhesive 4 is in a working state of applying a voltage of 9V and a current of 0.6A for 30 seconds, thereby achieving the effect of peeling off the adhesive paper.

[0037] It should be noted that applying a 9V voltage to the electrolytic adhesive 4 results in the highest debonding efficiency. Too high a voltage will cause damage, while too low a voltage will not achieve the desired effect. Therefore, a voltage of 9V needs to be applied to the electrolytic adhesive 4.

[0038] In one embodiment, such as Figure 3 As shown, the first control chip U2 is configured to send a disconnect control signal to the control terminal of the first switch transistor when it is determined that the voltage adjustment circuit has been falsely awakened, so as to control the first switch transistor to disconnect.

[0039] Among them, the voltage adjustment circuit false wake-up refers to the voltage adjustment circuit automatically changing from the dormant state to the working state when there is no control command sent by the whole machine. Therefore, the first control chip U2 can send a disconnect control signal to the control terminal of the first switch Q3 to disconnect the first switch Q3 and prevent the boost circuit from outputting voltage to the electrolytic glue 4.

[0040] In one embodiment, the first control chip U2 is configured to send a disconnection control signal or a turn-on control signal through the control terminal of the first switch Q3 when the voltage adjustment circuit has no wake-up function, so as to control the first switch to turn off or on.

[0041] In this circuit, the first switching transistor Q3 acts as a protective switch controlled by the boost converter chip U3. When the electronic product is operating normally and the boost converter chip U3 malfunctions and is activated, the first control chip U2 can control the first switching transistor Q3 to disconnect and promptly block the circuit. Because U3 is a boost converter chip, not every brand and model has a pin for activating the first control chip U2. If a boost converter chip without activation functionality is selected, the first switching transistor Q3 can still function as a crucial switch to block the circuit, allowing it to continue operating normally.

[0042] In one embodiment, the voltage adjustment circuit includes a boost circuit, a voltage regulator circuit, or a buck circuit.

[0043] In this circuit, when the battery's supply voltage is below 9V, the voltage regulation circuit acts as a boost circuit. For example, it boosts the battery's voltage range (3~4.2V) to a constant 9V output. When the battery's supply voltage can maintain 9V, the voltage regulation circuit acts as a voltage regulator circuit, achieving voltage stabilization. When the battery's supply voltage is above 9V, the voltage regulation circuit acts as a buck circuit, reducing the voltage to a constant 9V output. For example, conventional lithium batteries used in mobile phones have a wide voltage range. When it's a single-cell battery, a boost design is used, and the voltage regulation circuit is a boost circuit; when it's a dual-cell battery, a voltage regulator design is used, and when it's a three-cell or higher battery, a buck design is used, and the voltage regulation circuit is a buck circuit.

[0044] Since the external power supply for the electrolytic adhesive 4 is a battery, the voltage adjustment circuit needs to be activated by sending a command only when the battery needs to be replaced during the production or after-sales service of electronic products. This allows the electrolytic adhesive 4 to be energized and detached. Under normal circumstances, after the battery is properly glued and assembled, and the battery is not replaced, the voltage adjustment circuit is in a dormant state and is not allowed to work. In addition, as a precaution, the first switching transistor Q3 is added as a loop switch for double protection.

[0045] In one embodiment, such as Figure 3 As shown, the boost circuit includes: The system includes a boost converter chip U3, a second switch Q2, and a boost circuit. The enable terminal EN of the boost converter chip serves as the enable terminal of the voltage adjustment circuit. The first output terminal SDR of the boost converter chip is connected to the control terminal of the second switch. The input terminal of the second switch is connected to the input terminal of the boost converter chip through a preset current sensing branch (Rs, L1). The input terminal of the boost converter chip serves as the power supply terminal of the voltage adjustment circuit. The second output terminal OUT of the boost chip is connected to the first terminal of the boost branch and the output terminal of the second switching transistor, respectively, and the second output terminal of the boost chip serves as the positive output terminal of the voltage adjustment circuit; the feedback terminal FB of the boost chip is connected to the second terminal of the boost branch, and the third terminal of the boost branch serves as the negative output terminal of the voltage adjustment circuit, or the third terminal of the boost branch is connected to one end of a preset first current limiting branch (R7), and the other end of the current limiting branch serves as the negative output terminal of the voltage adjustment circuit.

[0046] The boost circuit includes resistors R5 and R6. One end of resistor R6 serves as the first terminal of the boost circuit, and the other end serves as the second terminal and is connected to one end of resistor R5. The other end of resistor R5 serves as the third terminal of the boost circuit. A pre-defined first current-limiting branch includes resistor R7. One end of resistor R7 is connected to resistor R5, and the other end serves as the negative output terminal V- of the voltage adjustment circuit. A pre-defined current-sensing branch includes resistor Rs and inductor L1. One end of inductor L1 is connected to the input terminal of the second switching transistor Q2, and the other end of inductor L1 is connected to one end of resistor Rs and the detection terminal SENSE of the boost chip. The other end of resistor Rs serves as the negative output terminal of the voltage adjustment circuit. Resistor Rs is a current-sensing resistor used to detect the circuit current.

[0047] For example, the aforementioned boost chip could be model IC-MP9184. Figure 3 In the diagram, capacitors C3 / C4 are input filter capacitors, capacitor C8 is output filter capacitor, capacitor C7 is filter capacitor connected to the input of the second switch Q2, and C5 / C6 are soft-start filter capacitors for the boost chip; resistors R5 / R6 are output feedback current limiting resistors used for output voltage detection and setting; according to... Figure 3 The circuit structure in the diagram, and the expression for the output voltage of the voltage regulation circuit are as follows: Vout = 1.225V * (1 + R6 / R5) For example, when the required output voltage Vout is 9V and the battery voltage V is (3~4.2V), the resistance of R6 can be selected as 300KΩ and the resistance of R5 as 47KΩ to meet the above constraints.

[0048] The operation of the power supply control circuit containing the above-mentioned boost circuit includes: After the main unit is connected to the battery, it sends instructions to the first control chip U2 via the communication terminals SCL and SDA. Upon receiving the instructions, the first control chip U2 wakes up the boost chip U3, which can boost the battery's supply voltage (3~4.2V) to a constant 9V output. After receiving the instructions, the first control chip U2 simultaneously sends a low-level instruction to the control terminal of the first switching transistor Q3, turning on the first switching transistor Q3. This ensures that the positive output terminal V+ of the voltage adjustment circuit maintains a constant 9V voltage to the negative output terminal V-. This makes the electrolytic adhesive 4 on the battery conductive, and the electrolytic adhesive 4 is in a working state with 9V applied, thereby achieving the effect of peeling off the adhesive tape.

[0049] In one embodiment, such as Figure 3 As shown, the boost chip U3 is configured to obtain an enable signal from the enable terminal of the boost chip and send a conduction control signal to the control terminal of the second switch Q2 to control the second switch to conduct. This allows the second output terminal of the boost chip to output the boosted supply voltage through the boost branch, thus realizing the normal wake-up of the boost circuit. The second switch Q2 serves as the control switch for the boost chip U3, acting as a switch for the boost circuit.

[0050] In one embodiment, such as Figure 1 and Figure 2 As shown, the battery also includes: The second substrate 5 has a first pad connected to the third connection terminal and a second pad connected to the positive terminal 3 of the electrolytic adhesive. The first pad and the second pad are electrically connected. The third substrate 7 has a third pad connected to the fourth connection terminal, and the fourth pad on the third substrate 7 is connected to the negative terminal 6 of the electrolytic adhesive or the metal casing of the battery body 2. The third pad and the fourth pad are electrically connected.

[0051] The second substrate 5 and the third substrate 7 can be flexible printed circuit boards (FPC boards), while the first substrate can be a rigid circuit board, such as an FR4 substrate. The two output terminals V+ and V- of the voltage adjustment circuit are respectively soldered to one end of the two FPC boards. The other end of the FPC board is an exposed pad, which is connected to the positive and negative electrodes of the electrolytic adhesive on the surface of the battery.

[0052] In this embodiment, the second substrate 5 and the third substrate 7 are used as epitaxial structures to connect the electrolytic adhesive 4 and the two output terminals of the voltage adjustment circuit, so as to enable the battery to provide energy and the self-adhesive can be removed.

[0053] In one embodiment, such as Figure 3 As shown, the battery protection circuit includes: The system comprises a second control chip U1, a third switch Q1, and a fourth switch Q4. The power supply terminal VDD of the second control chip is connected to one end of a preset second current-limiting branch. The other end of the second current-limiting branch serves as the first connection terminal of the battery protection circuit board 1 and as the positive power supply terminal of the load of the battery protection circuit board 1. The first control terminal DO of the second control chip is connected to the control terminal of the third switch. The output terminal of the third switch serves as the second connection terminal of the battery protection circuit board 1. The input terminal of the third switch is connected to the output terminal of the fourth switch. The control terminal of the fourth switch is connected to the second control terminal CO of the second control chip. The input terminal of the fourth switch serves as the negative power supply terminal of the load of the battery protection circuit board 1.

[0054] The second current-limiting branch includes a resistor R1. One end of the resistor R1 is connected to the power supply terminal VDD of the second control chip, and the other end of the resistor R1 serves as the first connection terminal of the battery protection circuit board 1.

[0055] Figure 3 The battery protection circuit board 1, together with the charge / discharge switch MOS-Q1, forms a conventional lithium battery protection circuit, realizing conventional protection functions such as overvoltage and overcurrent protection, providing the most basic safety guarantee for the battery. The first control chip U2 only needs to perform three functions: communication with the whole machine, wake-up of the boost chip U3, and control of the first switch Q3. First, the first control chip U2 communicates with the whole machine through pins PIN5-SCL and PIN6-SDA, using two-wire I2C communication for higher efficiency. Second, pin PIN2-EN of the first control chip U2 is connected to pin PIN4-EN of the boost IC-U4. By changing the high and low levels, it controls whether the boost chip U3 is in the working state, thereby reducing power consumption. Third, pin PIN4-ON of the first control chip U2 is connected to the first switch Q3. By changing the high and low levels, it controls the on and off states of the first switch Q3, thereby avoiding abnormalities such as misconnection or short circuit due to misoperation. Figure 3 In the circuit, the boost chip U3 is a BOOST boost converter circuit. It needs to be used with an external energy storage inductor-L1 and peripheral resistors and capacitors to achieve a 9V constant voltage output.

[0056] In one embodiment, an electronic device is provided, in which the battery is disposed. This electronic device may be a mobile phone, tablet, camera, etc.

[0057] In this embodiment, by using a simple circuit setup, a simple structural combination, and a novel adhesive material, both structural fixation and safety can be achieved, and the battery replacement efficiency can be improved by utilizing the characteristic of the adhesive material to detach when energized, thus enabling battery reuse and reducing the high cost of scrapping.

[0058] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. A battery, characterized in that, The battery includes: The battery body, battery protection circuit board, and electrolytic adhesive are provided. The battery body is fixed to the electronic product by the electrolytic adhesive. The first connection terminal of the battery protection circuit board is connected to the positive terminal of the battery body. The second connection terminal of the battery protection circuit board is connected to the negative terminal of the battery body. The third connection terminal of the battery protection circuit board is used to connect to the positive terminal of the electrolytic adhesive. The fourth connection terminal of the battery protection circuit board is used to connect to the negative terminal of the electrolytic adhesive or the metal casing of the battery body. The battery protection circuit board is used to obtain the power supply voltage of the battery body through the first connection terminal and the second connection terminal, and output the processed power supply voltage to the electrolytic adhesive from the third connection terminal and the fourth connection terminal, so that the electrolytic adhesive is peeled off from the battery body.

2. The battery according to claim 1, characterized in that, The battery protection circuit board includes: A first substrate has a circuit layer comprising a battery protection circuit, a power supply control circuit, and a voltage adjustment circuit. The positive input terminal of the battery protection circuit serves as the first connection terminal, and the negative input terminal serves as the second connection terminal. The output terminal of the battery protection circuit is used to output a power supply signal. The power supply control circuit has a power supply terminal connected to the positive terminal of the battery body, a communication terminal for acquiring an electrolytic adhesive peeling command, and a control terminal for outputting a wake-up command to the voltage adjustment circuit to wake it up. The power supply terminal of the voltage adjustment circuit is connected to the positive terminal of the battery body, and the positive output terminal of the voltage adjustment circuit is used to output the processed power supply voltage. The negative output terminal of the voltage adjustment circuit serves as the fourth connection terminal.

3. The battery according to claim 2, characterized in that, The power supply control circuit includes: A first control chip and a first switching transistor are used. The communication terminal of the first control chip is used to connect to the control host. The power supply terminal of the first control chip is connected to the output terminal of the battery protection circuit through a step-down branch. The enable terminal of the first control chip is connected to the enable terminal of the voltage adjustment circuit to output an enable signal. The control output terminal of the first control chip is connected to the control terminal of the first switching transistor. The input terminal of the first switching transistor is connected to the positive output terminal of the voltage adjustment circuit. The output terminal of the first switching transistor serves as the third connection terminal.

4. The battery according to claim 3, characterized in that, The first control chip is configured to send a disconnect control signal to the control terminal of the first switch transistor when it is determined that the voltage adjustment circuit has been falsely woken up, so as to control the first switch transistor to disconnect.

5. The battery according to claim 3, characterized in that, The first control chip is configured to send a disconnect control signal or a turn-on control signal through the control terminal of the first switch transistor when the voltage adjustment circuit has no wake-up function, so as to control the first switch transistor to turn off or on.

6. The battery according to claim 3, characterized in that, The voltage adjustment circuit includes: a boost circuit, a voltage regulator circuit, or a buck circuit.

7. The battery according to claim 6, characterized in that, The boost circuit includes: The system includes a boost converter chip, a second switching transistor, and a boost circuit. The enable terminal of the boost converter chip serves as the enable terminal of the voltage adjustment circuit. The first output terminal of the boost converter chip is connected to the control terminal of the second switching transistor. The input terminal of the second switching transistor is connected to the input terminal of the boost converter chip through a preset current detection branch. The input terminal of the boost converter chip serves as the power supply terminal of the voltage adjustment circuit. The second output terminal of the boost chip is connected to the first terminal of the boost branch and the output terminal of the second switching transistor, respectively, and the second output terminal of the boost chip serves as the positive output terminal of the voltage adjustment circuit; the feedback terminal of the boost chip is connected to the second terminal of the boost branch, and the third terminal of the boost branch serves as the negative output terminal of the voltage adjustment circuit, or the third terminal of the boost branch is connected to one end of a preset first current limiting branch, and the other end of the current limiting branch serves as the negative output terminal of the voltage adjustment circuit.

8. The battery according to claim 7, characterized in that, The boost chip is configured to obtain an enable signal from the enable terminal of the boost chip, send a conduction control signal to the control terminal of the second switch, control the second switch to conduct, so that the second output terminal of the boost chip outputs the boosted power supply voltage through the boost branch, thereby realizing the normal wake-up of the boost circuit.

9. The battery according to claim 1, characterized in that, The battery also includes: The second substrate has a first pad connected to the third connection terminal and a second pad connected to the positive terminal of the electrolytic adhesive. The first pad and the second pad are electrically connected. A third substrate, wherein a third pad on the third substrate is connected to the fourth connection terminal, and a fourth pad on the third substrate is connected to the negative terminal of the electrolytic adhesive or the metal casing of the battery body, and the third pad and the fourth pad are electrically connected.

10. The battery according to claim 1, characterized in that, The battery protection circuit includes: The system comprises a second control chip, a third switch, and a fourth switch. The power supply terminal of the second control chip is connected to one end of a preset second current-limiting branch. The other end of the second current-limiting branch serves as the first connection terminal of the battery protection circuit board and as the positive power supply terminal of the load of the battery protection circuit board. The first control terminal of the second control chip is connected to the control terminal of the third switch. The output terminal of the third switch serves as the second connection terminal of the battery protection circuit board. The input terminal of the third switch is connected to the output terminal of the fourth switch. The control terminal of the fourth switch is connected to the second control terminal of the second control chip. The input terminal of the fourth switch serves as the negative power supply terminal of the load of the battery protection circuit board.

11. An electronic device, characterized in that, The electronic device is provided with a battery as described in any one of claims 1 to 10.

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