WO2021256770A1

WO2021256770A1 - Battery structure and electronic device comprising battery structure

Info

Publication number: WO2021256770A1
Application number: PCT/KR2021/007198
Authority: WO
Inventors: 전용섭; 서영호; 이성일; 이재연; 편주일
Original assignee: 삼성전자 주식회사
Priority date: 2020-06-17
Filing date: 2021-06-09
Publication date: 2021-12-23
Also published as: KR20210155953A

Abstract

An electronic device according to various embodiments disclosed in the present document may comprise: a jelly roll having a structure in which a positive electrode plate, a negative electrode plate, and a separator are wound together; a battery pouch for accommodating the jelly roll; a battery including a first electrode tab electrically connected to the positive electrode plate of the jelly roll and drawn out from the battery pouch, a second electrode tab electrically connected to the negative electrode plate of the jelly roll and drawn out from the battery pouch, and a sealant disposed at a portion from which the first electrode tab and the second electrode tab are drawn out from the battery pouch, and sealing the battery pouch; a printed circuit board to which the first electrode tab and the second electrode tab are electrically connected; and a sensing circuit which is positioned on the printed circuit board and can measure the state of the jelly roll, wherein the first electrode tab and the second electrode tab may extend in such a manner that at least some sections are bent so as to be electrically connected to the printed circuit board. Various other embodiments may be possible.

Description

A battery structure and an electronic device comprising the battery structure

Various embodiments disclosed in this document relate to a battery structure and an electronic device including the battery structure.

As the demand for portable electronic devices increases, the demand for batteries for supplying power to the electronic devices also increases. In line with this increase in demand, the technology in the battery field is also continuously developing.

Although various batteries are used, a lithium ion battery is mainly used in a portable electronic device. A lithium-ion battery is a type of battery developed from a lithium-ion battery. Lithium-ion batteries use a gel or solid electrolyte rather than a liquid, so there is little risk of electrolyte leakage, making them suitable for portable electronic devices with frequent shocks.

Recently, as the capacity of an electronic device battery increases, the need for a fast charging technology has emerged. In order to enable fast charging, it is necessary to manufacture the battery with low resistance. For this purpose, a type of battery in which tabs drawn out from a positive plate or a negative plate included in a jelly roll included in the battery are not one but a plurality of batteries have emerged. Such a battery may be referred to as a so-called multi-tab battery.

On the other hand, it is preferable that the control circuit for controlling the battery and the sensing circuit for measuring the state of the battery are located on the printed circuit board included in the battery structure. This is because, when these circuits are located on a printed circuit board far from the battery, signal transmission efficiency decreases, and there is a risk of noise or interference occurring in the signal transmission process.

However, in the case of a multi-tap battery, the mounting area of the printed circuit board connected to the electrode tab may be used inefficiently due to a limitation in the position of the tab drawn out from the positive and negative plates. It is difficult to mount various circuits for control and management.

Various embodiments disclosed in this document provide a battery structure capable of mounting a control circuit or a sensing circuit on a printed circuit board by securing a mounting area of a printed circuit board included in the battery structure, and an electronic device including the battery structure can do.

An electronic device according to various embodiments disclosed herein is electrically connected to a jelly roll including a structure in which a positive electrode plate, a negative electrode plate and a separator are wound together, a battery pouch accommodating the jelly roll, and a positive electrode plate of the jelly roll a first electrode tab drawn out from the battery pouch, a second electrode tab electrically connected to the negative electrode plate of the jelly roll and drawn out from the battery pouch, and the first electrode tab and the second electrode tab are drawn out from the battery pouch A battery including a sealant disposed in a portion to seal the battery pouch, a printed circuit board to which the first electrode tab and the second electrode tab are electrically connected, and a printed circuit board positioned on the printed circuit board to measure the state of the jelly roll It may include a sensing circuit capable of performing a function, and the first electrode tab and the second electrode tab may extend such that at least some sections are bent to be electrically connected to the printed circuit board.

An electronic device according to various embodiments disclosed herein includes a first housing, a second housing, a hinge member rotatably connecting the first housing and the second housing, disposed in the first housing, and a first electrode tab and a first battery including a second electrode tab, a second battery disposed in the second housing and including a third electrode tab and a fourth electrode tab, a printed circuit board disposed on the hinge member, the printed circuit board may include a sensing circuit capable of measuring electrical states of the first battery and the second battery, and the first electrode tab and the second electrode tab of the first battery may extend such that at least some sections are bent. The third electrode tab and the fourth electrode tab of the second battery may extend such that at least some sections are bent.

The battery structure according to various embodiments disclosed in this document is electrically connected to a jelly roll including a structure in which a positive electrode plate, a negative electrode plate and a separator are wound together, a battery pouch accommodating the jelly roll, and the positive electrode plate of the jelly roll, the battery A first electrode tab drawn out from the pouch, a second electrode tab electrically connected to the negative electrode plate of the jelly roll and drawn out from the battery pouch, and a portion from which the first electrode tab and the second electrode tab are drawn out from the battery pouch. A sealant disposed to seal the portion of the battery pouch, a printed circuit board to which the first electrode tab and the second electrode tab are electrically connected, and a printed circuit board positioned on the printed circuit board to measure the state of the jelly roll A sensing circuit may be included, and the first electrode tab and the second electrode tab may extend such that at least some sections are bent to be electrically connected to the printed circuit board.

According to various embodiments disclosed in this document, it is possible to secure a space for mounting various circuits capable of controlling the battery and measuring the state of the battery in the printed circuit board included in the battery structure. Accordingly, a circuit for controlling the battery and a circuit for measuring the state of the battery can be mounted on a printed circuit board included in the battery structure, so that space can be efficiently used. At the same time, since the above circuits are mounted on a printed circuit board adjacent to the battery, the increase in signal transmission path can be reduced.

In connection with the description of the drawings , the same or similar reference numerals may be used for the same or similar components.

1 is a block diagram of an electronic device in a network environment, according to various embodiments of the present disclosure;

2A is a cross-sectional view of a jelly roll included in a battery structure according to various embodiments disclosed herein.

2B is a view for explaining a connection between a jelly roll and an electrode tab according to various embodiments disclosed in this document.

3 is a perspective view of a battery structure according to various embodiments disclosed herein.

4 is a view for explaining various embodiments of the arrangement of the sealant included in the battery structure according to various embodiments disclosed in this document.

5 is a perspective view of a battery structure according to various embodiments disclosed herein.

6 is a view for explaining various embodiments of the arrangement of the sealant included in the battery structure according to various embodiments disclosed in this document.

7A is a plan view of a housing and a battery of an electronic device according to various embodiments disclosed herein.

7B is a rear view of a housing and a battery of an electronic device according to various embodiments disclosed herein.

7C is a view for explaining various embodiments of the battery and electrode tabs shown in FIGS. 7A and 7B .

The various embodiments of this document and the terms used therein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various modifications, equivalents, or substitutions of the embodiments.

In connection with the description of the drawings, like reference numerals may be used for similar or related components. The singular form of the noun corresponding to the item may include one or more of the item, unless the relevant context clearly dictates otherwise.

As used herein, “A or B”, “at least one of A and B”, “at least one of A or B,” “A, B or C,” “at least one of A, B and C,” and “B Each of the phrases "at least one of , or C" may include any one of the items listed together in the corresponding one of the phrases, or all possible combinations thereof. Terms such as "first", "second", or "first" or "second" may be used simply to distinguish the element from other elements in question, and may refer to elements in other aspects (e.g., importance or order) is not limited. that one (eg first) component is “coupled” or “connected” to another (eg, second) component, with or without the terms “functionally” or “communicatively” When referenced, it means that one component can be connected to the other component directly (eg by wire), wirelessly, or through a third component.

1 is a block diagram of an electronic device 101 in a network environment 100 according to various embodiments. Referring to FIG. 1 , in a network environment 100 , an electronic device 101 communicates with an electronic device 102 through a first network 198 (eg, a short-range wireless communication network) or a second network 199 . It may communicate with the electronic device 104 or the server 108 through (eg, a long-distance wireless communication network). According to an embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108 . According to an embodiment, the electronic device 101 includes a processor 120 , a memory 130 , an input module 150 , a sound output module 155 , a display module 160 , an audio module 170 , and a sensor module ( 176), interface 177, connection terminal 178, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, subscriber identification module 196 , or an antenna module 197 may be included. In some embodiments, at least one of these components (eg, the connection terminal 178 ) may be omitted or one or more other components may be added to the electronic device 101 . In some embodiments, some of these components (eg, sensor module 176 , camera module 180 , or antenna module 197 ) are integrated into one component (eg, display module 160 ). can be

The processor 120, for example, executes software (eg, a program 140) to execute at least one other component (eg, a hardware or software component) of the electronic device 101 connected to the processor 120 . It can control and perform various data processing or operations. According to one embodiment, as at least part of data processing or operation, the processor 120 converts commands or data received from other components (eg, the sensor module 176 or the communication module 190 ) to the volatile memory 132 . may be stored in the volatile memory 132 , and may process commands or data stored in the volatile memory 132 , and store the result data in the non-volatile memory 134 . According to an embodiment, the processor 120 is the main processor 121 (eg, a central processing unit or an application processor) or a secondary processor 123 (eg, a graphic processing unit, a neural network processing unit) a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor). For example, when the electronic device 101 includes the main processor 121 and the sub-processor 123 , the sub-processor 123 may use less power than the main processor 121 or may be set to be specialized for a specified function. can The auxiliary processor 123 may be implemented separately from or as a part of the main processor 121 .

The auxiliary processor 123 is, for example, on behalf of the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or the main processor 121 is active (eg, executing an application). ), together with the main processor 121, at least one of the components of the electronic device 101 (eg, the display module 160, the sensor module 176, or the communication module 190) It is possible to control at least some of the related functions or states. According to an embodiment, the co-processor 123 (eg, an image signal processor or a communication processor) may be implemented as part of another functionally related component (eg, the camera module 180 or the communication module 190). have. According to an embodiment, the auxiliary processor 123 (eg, a neural network processing device) may include a hardware structure specialized for processing an artificial intelligence model. Artificial intelligence models can be created through machine learning. Such learning may be performed, for example, in the electronic device 101 itself on which artificial intelligence is performed, or may be performed through a separate server (eg, the server 108). The learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but in the above example not limited The artificial intelligence model may include a plurality of artificial neural network layers. Artificial neural networks include deep neural networks (DNNs), convolutional neural networks (CNNs), recurrent neural networks (RNNs), restricted boltzmann machines (RBMs), deep belief networks (DBNs), bidirectional recurrent deep neural networks (BRDNNs), It may be one of deep Q-networks or a combination of two or more of the above, but is not limited to the above example. The artificial intelligence model may include, in addition to, or alternatively, a software structure in addition to the hardware structure.

The memory 130 may store various data used by at least one component of the electronic device 101 (eg, the processor 120 or the sensor module 176 ). The data may include, for example, input data or output data for software (eg, the program 140 ) and instructions related thereto. The memory 130 may include a volatile memory 132 or a non-volatile memory 134 .

The program 140 may be stored as software in the memory 130 , and may include, for example, an operating system 142 , middleware 144 , or an application 146 .

The input module 150 may receive a command or data to be used in a component (eg, the processor 120 ) of the electronic device 101 from the outside (eg, a user) of the electronic device 101 . The input module 150 may include, for example, a microphone, a mouse, a keyboard, a key (eg, a button), or a digital pen (eg, a stylus pen).

The sound output module 155 may output a sound signal to the outside of the electronic device 101 . The sound output module 155 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as multimedia playback or recording playback. The receiver may be used to receive an incoming call. According to one embodiment, the receiver may be implemented separately from or as part of the speaker.

The display module 160 may visually provide information to the outside (eg, a user) of the electronic device 101 . The display module 160 may include, for example, a control circuit for controlling a display, a hologram device, or a projector and a corresponding device. According to an embodiment, the display module 160 may include a touch sensor configured to sense a touch or a pressure sensor configured to measure the intensity of a force generated by the touch.

The audio module 170 may convert a sound into an electric signal or, conversely, convert an electric signal into a sound. According to an embodiment, the audio module 170 acquires a sound through the input module 150 , or an external electronic device (eg, a sound output module 155 ) connected directly or wirelessly with the electronic device 101 . A sound may be output through the electronic device 102 (eg, a speaker or headphones).

The sensor module 176 detects an operating state (eg, power or temperature) of the electronic device 101 or an external environmental state (eg, user state), and generates an electrical signal or data value corresponding to the sensed state. can do. According to an embodiment, the sensor module 176 may include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, It may include a temperature sensor, a humidity sensor, or an illuminance sensor.

The interface 177 may support one or more designated protocols that may be used by the electronic device 101 to directly or wirelessly connect with an external electronic device (eg, the electronic device 102 ). According to an embodiment, the interface 177 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

The connection terminal 178 may include a connector through which the electronic device 101 can be physically connected to an external electronic device (eg, the electronic device 102 ). According to an embodiment, the connection terminal 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).

The haptic module 179 may convert an electrical signal into a mechanical stimulus (eg, vibration or movement) or an electrical stimulus that the user can perceive through tactile or kinesthetic sense. According to an embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

The camera module 180 may capture still images and moving images. According to an embodiment, the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.

The power management module 188 may manage power supplied to the electronic device 101 . According to an embodiment, the power management module 188 may be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

The battery 189 may supply power to at least one component of the electronic device 101 . According to one embodiment, battery 189 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.

The communication module 190 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (eg, the electronic device 102, the electronic device 104, or the server 108). It can support establishment and communication performance through the established communication channel. The communication module 190 may include one or more communication processors that operate independently of the processor 120 (eg, an application processor) and support direct (eg, wired) communication or wireless communication. According to one embodiment, the communication module 190 is a wireless communication module 192 (eg, a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (eg, : It may include a LAN (local area network) communication module, or a power line communication module). A corresponding communication module among these communication modules is a first network 198 (eg, a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network 199 (eg, legacy It may communicate with the external electronic device 104 through a cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (eg, a telecommunication network such as a LAN or a WAN). These various types of communication modules may be integrated into one component (eg, a single chip) or may be implemented as a plurality of components (eg, multiple chips) separate from each other. The wireless communication module 192 uses the subscriber information (eg, International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 196 within a communication network such as the first network 198 or the second network 199 . The electronic device 101 may be identified or authenticated.

The wireless communication module 192 may support a 5G network after a 4G network and a next-generation communication technology, for example, a new radio access technology (NR). NR access technology includes high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and access to multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency) -latency communications)). The wireless communication module 192 may support a high frequency band (eg, mmWave band) to achieve a high data rate, for example. The wireless communication module 192 includes various technologies for securing performance in a high-frequency band, for example, beamforming, massive multiple-input and multiple-output (MIMO), all-dimensional multiplexing. It may support technologies such as full dimensional MIMO (FD-MIMO), an array antenna, analog beam-forming, or a large scale antenna. The wireless communication module 192 may support various requirements specified in the electronic device 101 , an external electronic device (eg, the electronic device 104 ), or a network system (eg, the second network 199 ). According to an embodiment, the wireless communication module 192 may include a peak data rate (eg, 20 Gbps or more) for realizing eMBB, loss coverage (eg, 164 dB or less) for realizing mMTC, or U-plane latency for realizing URLLC ( Example: downlink (DL) and uplink (UL) each 0.5 ms or less, or round trip 1 ms or less).

The antenna module 197 may transmit or receive a signal or power to the outside (eg, an external electronic device). According to an embodiment, the antenna module 197 may include an antenna including a conductor formed on a substrate (eg, a PCB) or a radiator formed of a conductive pattern. According to an embodiment, the antenna module 197 may include a plurality of antennas (eg, an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network such as the first network 198 or the second network 199 is connected from the plurality of antennas by, for example, the communication module 190 . can be selected. A signal or power may be transmitted or received between the communication module 190 and an external electronic device through the selected at least one antenna. According to some embodiments, other components (eg, a radio frequency integrated circuit (RFIC)) other than the radiator may be additionally formed as a part of the antenna module 197 .

According to various embodiments, the antenna module 197 may form a mmWave antenna module. According to one embodiment, the mmWave antenna module comprises a printed circuit board, an RFIC disposed on or adjacent to a first side (eg, bottom side) of the printed circuit board and capable of supporting a designated high frequency band (eg, mmWave band); and a plurality of antennas (eg, an array antenna) disposed on or adjacent to a second side (eg, top or side) of the printed circuit board and capable of transmitting or receiving signals of the designated high frequency band. can do.

At least some of the components are connected to each other through a communication method between peripheral devices (eg, a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)) and a signal ( eg commands or data) can be exchanged with each other.

According to an embodiment, the command or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199 . Each of the external

electronic devices

102 or 104 may be the same as or different from the electronic device 101 . According to an embodiment, all or a part of operations executed in the electronic device 101 may be executed in one or more external

electronic devices

102 , 104 , or 108 . For example, when the electronic device 101 is to perform a function or service automatically or in response to a request from a user or other device, the electronic device 101 may perform the function or service itself instead of executing the function or service itself. Alternatively or additionally, one or more external electronic devices may be requested to perform at least a part of the function or the service. One or more external electronic devices that have received the request may execute at least a part of the requested function or service, or an additional function or service related to the request, and transmit a result of the execution to the electronic device 101 . The electronic device 101 may process the result as it is or additionally and provide it as at least a part of a response to the request. For this, for example, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used. The electronic device 101 may provide an ultra-low latency service using, for example, distributed computing or mobile edge computing. In another embodiment, the external electronic device 104 may include an Internet of things (IoT) device. Server 108 may be an intelligent server using machine learning and/or neural networks. According to an embodiment, the external electronic device 104 or the server 108 may be included in the second network 199 . The electronic device 101 may be applied to an intelligent service (eg, smart home, smart city, smart car, or health care) based on 5G communication technology and IoT-related technology.

2A is a cross-sectional view of a jelly roll included in a battery structure according to various embodiments disclosed in this document, and FIG. 2B is a view for explaining a connection between a jelly roll and an electrode tab according to various embodiments disclosed in this document. . FIG. 2A is a cross-sectional view of the battery structure shown in FIG. 3 taken along line A-A, and FIG. 2B may be a cross-sectional view of the battery structure illustrated in FIG. 3 taken along line B-B.

In the following description, the same or similar components will be described using the same reference numerals.

An electronic device (eg, the electronic device 101 of FIG. 1 ) according to various embodiments disclosed in this document includes various electronic components (eg, a processor (eg, the processor 120 of FIG. 1 ), a memory included in the electronic device). (eg, the memory 130 of FIG. 1 ), a display (eg, the display module 160 of FIG. 1 ), etc.) may include a battery (eg, the battery 189 of FIG. 1 ). The battery may be, for example, a lithium ion battery.

A lithium ion battery is a battery that can be charged using an external power source. Lithium-ion batteries are widely used in mobile electronic devices because of their high energy density, good storage, and long life cycle. In addition, in the case of a lithium ion polymer battery, since a solid or gel type electrolyte is used, there is an advantage that the possibility of leakage of an electrolyte material is significantly lower than other batteries using a liquid electrolyte.

According to various embodiments, the battery may include a jelly roll 200 . The jelly roll 200 may include a structure in which the positive electrode plate 210 and the negative electrode plate 220 are overlapped and wound together. The positive electrode plate 210 and the negative electrode plate 220 may be wound together with a separator 230 interposed therebetween. According to another embodiment, the battery may include a stack type electrode assembly including a structure in which a positive electrode plate and a negative electrode plate are stacked. The positive electrode plate 210 may refer to an electrode on the side through which electrons flow. Since a chemical reaction in which electrons are lost occurs in the positive electrode plate 210 , it may be understood as an electrode in which an oxidation reaction occurs. A positive electrode active material for positive electrode activity may be coated on at least one surface of the positive electrode plate 210 . The negative electrode plate 220 may refer to an electrode on the side through which electrons flow. Since a chemical reaction to obtain electrons occurs in the negative electrode plate 220 , it may be understood as an electrode in which a reduction reaction occurs. A negative electrode active material for negative electrode activity may be coated on at least one surface of the negative electrode plate 220 . As described above, current may be generated through the redox reaction between the positive electrode plate 210 and the negative electrode plate 220 disposed with the separator 230 interposed therebetween.

According to various embodiments, the separator 230 disposed between the positive electrode plate 210 and the negative plate may function as an electrolyte in the battery. The separator 230 may be made of a porous polymer material. For example, the separator 230 may include a porous polyolefin membrane, polyvinylidene fluoride-hexafluoropropylene, polyvinylidene fluoride-trichloroethylene, polymethyl methacrylate, polyacrylonitrile, polyvinyl Pyrrolidone, polyvinyl acetate, ethylene vinyl acetate copolymer, polyethylene oxide, cellulose acetate, cellulose acetate butyrate, cellulose acetate propionate, cyanoethyl pullulan, cyanoethyl polyvinyl alcohol, cyanoethyl cellulose, cyano Noethyl sucrose, pullulan, carboxyl methyl cellulose, acrylonitrile styrene butadiene copolymer, polyimide, polyethylene terephthalate, polybutylene terephthalate, polyester, polyacetal, polyamide, polyetheretherketone, polyethersulfone , polyphenylene oxide, polyphenylene sulfide, polyethylene naphthalene, a nonwoven fabric membrane, a membrane having a porous web structure, or a mixture thereof. Inorganic particles may be bound to one or both surfaces of the separation membrane 230 .

According to various embodiments, the positive

electrode substrate tabs

211 and 212 protruding to the outside of the jelly roll 200 may be formed on the positive electrode plate 210 so that the first electrode tab 250 and the positive electrode plate 210, which will be described later, can be connected. have. The positive

electrode substrate tabs

211 and 212 may be integrally formed with the positive electrode plate 210 . As shown in FIG. 2B , the positive

electrode substrate tabs

211 and 212 may be formed to protrude from the positive electrode plate 210 . The positive

electrode substrate tabs

211 and 212 may be plural. In this case, the positive

electrode substrate tabs

211 and 212 may be formed on different portions of the positive electrode plate 210 .

According to various embodiments, the negative

electrode substrate tabs

221 and 222 protruding outside the jelly roll 200 may be formed on the negative electrode plate 220 so that a second electrode tab 260 and the negative electrode plate 220, which will be described later, can be connected. have. The negative

electrode substrate tabs

221 and 222 may be integrally formed with the negative electrode plate 220 . Similar to the positive

electrode substrate tabs

211 and 212 , the negative

electrode substrate tabs

221 and 222 may be formed to protrude from the negative electrode plate 220 . The negative

electrode substrate tabs

221 and 222 may be plural. In this case, the negative

electrode substrate tabs

221 and 222 may be formed on different portions of the negative electrode plate 220 .

As such, when there are a plurality of positive

electrode substrate tabs

211 and 212 and negative

substrate substrate tabs

221 and 222 , a low resistance battery may be implemented because a current supply path increases. Low-resistance batteries can be advantageous for fast charging.

According to various embodiments, the positive

electrode substrate tabs

211 and 212 protruding from different portions of the positive electrode plate 210 may be connected to the first electrode tab 250 after being reconnected from the outside of the jelly roll 200 . As shown in FIG. 2B , a first positive electrode substrate tab 211 and a second positive electrode substrate tab 212 may be formed on the positive electrode plate 210 . A portion of the first positive electrode substrate tab 211 may be bent outside the jelly roll 200 to meet the second positive electrode substrate tab 212 . The first positive electrode substrate tab 211 , the second positive electrode substrate tab 212 , and the first electrode tab 250 may be bonded to each other through soldering. A first sealant 311 may be disposed at a portion from which the first positive electrode substrate tab 211 and the second positive electrode substrate tab 212 are drawn out from the battery pouch 300 . The first sealant 311 may seal the battery pouch 300 . The protective tape 240 may be attached to at least a portion of the first positive electrode substrate tab 211 and the second positive electrode substrate tab 212 . The protective tape 240 may be attached to the surfaces of the first positive electrode substrate tab 211 and the second positive electrode substrate tab 212 to cover bonding traces such as burrs. The negative

electrode substrate tabs

221 and 222 protruding from different portions of the negative electrode plate 220 may also be interconnected in the same manner as the positive

electrode substrate tabs

211 and 212 described above to be connected to the second electrode tab 260 . .

3 is a perspective view of a battery structure according to various embodiments disclosed in this document, and FIG. 4 is for explaining various embodiments of the arrangement of the sealant 310 included in the battery structure according to various embodiments disclosed in this document. It is a drawing.

The battery according to various embodiments disclosed herein may include the above-described jelly roll 200 , the first electrode tab 250 , the second electrode tab 260 , the battery pouch 300 , and the sealant 310 . and the battery structure may include the above-described battery and the printed circuit board 340 .

According to various embodiments, the battery pouch 300 may accommodate the jelly roll 200 . The battery pouch 300 may be made of a flexible material so that the volume can change in response to the volume change of the jelly roll 200 according to the charging and discharging of the battery structure. For example, the battery pouch 300 may be formed of a metal such as aluminum or an aluminum alloy. Inside the battery pouch 300 , the first electrode tab 250 and the second electrode tab 260 respectively connected to the jelly roll 200 and the positive electrode plate 210 and the negative electrode plate 220 included in the jelly roll 200 . Some may be acceptable.

According to various embodiments, the first electrode tab 250 may be electrically connected to the positive electrode plate of the jelly roll 200 (eg, the positive electrode plate 210 of FIG. 2A ). For example, as described above, the first electrode tab 250 is connected to the positive electrode substrate tab formed on the positive electrode plate 210 (eg, the positive

electrode substrate tabs

211 and 212 of FIG. 2A ), so that the first electrode tab 250 is connected to the first electrode tab 250 . ) and the positive electrode plate 210 may be electrically connected. The first electrode tab 250 may extend such that a first end corresponding to one end is connected to the positive electrode plate 210 of the jelly roll 200 and drawn out from the battery pouch 300 . The second end corresponding to the opposite end of the first electrode tab 250 that is drawn out and extended from the battery pouch 300 may be electrically connected to the printed circuit board 340 . For example, the first electrode tab 250 may be connected to the printed circuit board 340 by a soldering method.

According to various embodiments, the second electrode tab 260 may be electrically connected to the negative electrode plate of the jelly roll 200 (eg, the negative electrode plate 220 of FIG. 2A ). For example, as described above, the second electrode tab 260 is connected to the negative electrode substrate tab formed on the negative electrode plate 220 (eg, the negative

electrode substrate tabs

221 and 222 of FIG. 2A ) to the second electrode tab 260 . ) and the negative electrode plate 220 may be electrically connected. The second electrode tab 260 may be connected to the negative electrode plate 220 of the jelly roll 200 and extend to be drawn out of the battery pouch 300 . The opposite end of the second electrode tab 260 drawn out and extended from the battery pouch 300 may be electrically connected to the printed circuit board 340 .

According to various embodiments, the printed circuit board 340 of the battery structure may be a printed circuit board 340 disposed adjacent to the battery. The electronic device may include a plurality of printed circuit boards, and the printed circuit board 340 described below may refer to a printed circuit board 340 of a battery structure disposed adjacent to a battery. A battery control circuit 342 for protecting a battery may be positioned on the printed circuit board 340 . The battery control circuit 342 may include a circuit that protects the battery from a sudden change in an electrical signal applied to the battery due to a problem such as a short circuit. Also, a sensing circuit 343 capable of measuring the battery life, discharge time, number of times of charging and discharging, life prediction, and resistance of the battery may be located on the printed circuit board 340 . Such a sensing circuit may be referred to as a fuel gage, for example. The printed circuit board 340 may be electrically connected to the jelly roll 200 through the first electrode tab 250 and the second electrode tab 260 . The sensing circuit 343 positioned on the printed circuit board 340 may be electrically connected to the jelly roll 200 to measure the state of the jelly roll 200 . Since the printed circuit board 340 included in the battery structure is disposed close to the battery, a transmission distance of a signal for measuring the state of the battery may be reduced. Accordingly, noise or interference caused by an increase in signal transmission paths can be reduced.

According to various embodiments, the printed circuit board 340 may include a substrate body 341 extending in the longitudinal direction (eg, the X-axis direction of FIG. 3 ). The substrate body 341 may be formed to extend long in one direction as shown in FIG. 3 . In the substrate body 341 , the area adjacent to the first end corresponding to one end is the first area 340A, the area adjacent to the second end corresponding to the opposite side of the first end is the second area 340B, and the first area A region between the 340A and the second region 340B may be divided into a third region 340C.

According to various embodiments, the first electrode tab 250 connected to the positive electrode plate 210 of the jelly roll 200 may extend such that some sections are bent. The first electrode tab 250 extended to be bent as described above may be electrically connected to the first region 340A of the printed circuit board 340 . The second electrode tab 260 connected to the negative electrode plate 220 of the jelly roll 200 may also extend such that some sections are bent. The second electrode tab 260 extended to be bent as described above may be electrically connected to the second region 340B of the printed circuit board 340 . As shown in FIG. 3 , the first electrode tab 250 and the second electrode tab 250 and the second region 340A and the second region 340B respectively adjacent to the first end and the second end, which are both ends of the printed circuit board 340 , are respectively adjacent to each other. The first electrode tab 250 and the second electrode tab 260 may be bent in opposite directions to each other so that the two electrode tabs 260 are connected to each other. When the first electrode tab 250 and the second electrode tab 260 extend to be bent and are electrically connected at portions adjacent to both ends of the printed circuit board 340 , the first region 340A and the second region 340B The area of the third region 340C, which is a region between them, may increase. The battery control circuit 342 and the sensing circuit 343 described above may be positioned in the third region 340C of the printed circuit board 340 .

Since the first electrode tab 250 and the second electrode tab 260 are formed to be bent, an area in which the battery control circuit 342 and the sensing circuit 343 can be located may be secured. Since each of the first electrode tab 250 and the second electrode tab 260 is formed to extend so that one material is bent, a separate process for attaching a plurality of members separated from each other may not be performed. In addition, an increase in resistance due to bonding between a plurality of members that are distinguished from each other may be reduced.

According to various embodiments, a sealant 310 may be disposed at a portion from which the first electrode tab 250 and the second electrode tab 260 are drawn out of the battery pouch 300 . The sealant 310 may seal the battery pouch 300 . The sealant 310 may block the introduction of foreign substances into the portion from which the first electrode tab 250 and the second electrode tab 260 are drawn out from the battery pouch 300 . The sealant 310 may include a first sealant 311 sealing the lead-out portion of the first electrode tab 250 and a second sealant 312 sealing the lead-out portion of the second electrode tab 260 .

Referring to FIG. 4 , the sealant 310 may be disposed in various ways. For example, as shown in FIGS. 4A and 4B , the sealant 310 includes a first sealant 311 applied to the first electrode tab 250 and a second sealant applied to the second electrode tab 260 . It may be divided into two sealants 312 . As described above, when the first sealant 311 and the second sealant 312 seal the lead-out portion of the first electrode tab 250 and the lead-out portion of the second electrode tab 260 , respectively, sealing property of the battery pouch 300 . This can be improved. As another example, as shown in FIGS. 4C and 4D , the sealant 310 extending in the longitudinal direction may be applied to the first electrode tab 250 and the second electrode tab 260 . When the lead-out portions of the first electrode tab 250 and the second electrode tab 260 are sealed with a single sealant 310, processability may be improved. In addition, the sealant 310 is applied to the bent portion of the first electrode tab 250 and the second electrode tab 260 as shown in FIGS. As shown in b) and (d), the first electrode tab 250 and the second electrode tab 260 may be applied to portions that are not bent.

5 is a perspective view of a battery structure according to various embodiments disclosed in this document, and FIG. 6 is for explaining various embodiments of the arrangement of the sealant 310 included in the battery structure according to various embodiments disclosed in this document. It is a drawing.

Since the content to be described below is similar to the battery structure described with reference to FIG. 3 , the differences will be mainly described.

A battery according to various embodiments may include a jelly roll 200 , a first electrode tab 550 , a second electrode tab 560 , a battery pouch 300 , and a sealant 510 . The battery structure may include a battery and a printed circuit board 540 .

According to various embodiments, the first electrode tab 550 may electrically connect the positive electrode plate (eg, the positive electrode plate 210 of FIG. 2A ) of the jelly roll 200 and the printed circuit board 540 . The second electrode tab 560 may electrically connect the negative electrode plate of the jelly roll 200 (eg, the negative electrode plate 220 of FIG. 2A ) and the printed circuit board 540 .

According to various embodiments, the printed circuit board 540 may include a substrate body 541 formed in a longitudinal direction (eg, the X-axis direction of FIG. 5 ). The first area 540A of the printed circuit board 540 may refer to an area adjacent to the first end corresponding to one end of the substrate body 541 . The second area 540B of the printed circuit board 540 may mean an area other than the first area 540A.

According to various embodiments of the present disclosure, the first electrode tab 550 may extend such that at least a partial section is bent to be connected to the first region 540A of the printed circuit board 540 . The second electrode tab 560 may also extend such that at least a partial section is bent to be connected to the first region 540A of the printed circuit board 540 . As such, when both the first electrode tab 550 and the second electrode tab 560 are connected to the first region 540A of the printed circuit board 540 , the area of the second region 540B may increase. The first electrode tab 550 and the second electrode tab 560 may be bent and extended in the same direction to be connected to the first region 540A of the printed circuit board 540 .

Since both the first electrode tab 550 and the second electrode tab 560 are connected to the first area 540A of the printed circuit board 540, the secured second area 540B of the printed circuit board 540 has A battery control circuit 542 and a sensing circuit 543 may be located. The battery control circuit 542 may be, for example, a circuit that protects the battery from occurrence of a short circuit, and the sensing circuit 543 includes the battery life, discharge time, number of charging and discharging, life prediction and It may be a circuit that can measure the state of the battery, such as resistance.

According to various embodiments, a sealant 510 may be disposed at a portion from which the first electrode tab 550 and the second electrode tab 560 are drawn out of the battery pouch 300 . The sealant 510 may seal the battery pouch 300 . The sealant 510 may block the introduction of foreign substances into the portion from which the first electrode tab 550 and the second electrode tab 560 are drawn out from the battery pouch 300 .

Referring to FIG. 6 , the sealant 510 may be disposed in various ways. For example, as shown in FIG. 6A , the sealant 510 includes a first sealant 511 applied to the first electrode tab 550 and a second sealant 512 applied to the second electrode tab 560 . ) can be distinguished. As such, when the first sealant 511 and the second sealant 512 seal the lead-out portion of the first electrode tab 550 and the lead-out portion of the second electrode tab 560 , respectively, the sealing property of the battery pouch 300 . This can be improved. As another example, as shown in FIG. 6B , the sealant 510 extending in the longitudinal direction may be applied to the first electrode tab 550 and the second electrode tab 560 . When the lead-out portions of the first electrode tab 550 and the second electrode tab 560 are sealed with one sealant 510 , processability may be improved.

7A is a plan view of a housing and a battery of an electronic device according to various embodiments disclosed herein, FIG. 7B is a rear view of a housing and a battery of an electronic device according to various embodiments disclosed herein, and FIG. 7C is , is a view for explaining various embodiments of the battery and electrode tabs shown in FIGS. 7A and 7B .

According to various embodiments, the electronic device may be a foldable flexible electronic device. The electronic device may include a first housing 710 and a second housing 720 . The first housing 710 and the second housing 720 may be connected to the hinge member 730 . Using the hinge member 730 , the first housing 710 and the second housing 720 may move about a hinge axis (eg, axes A-A in FIGS. 7A and 7B ). The first housing 710 and the second housing 720 may be connected to each other in a foldable manner by a hinge member 730 .

According to various embodiments, the first battery 800 may be disposed in the first housing 710 , and the second battery 900 may be disposed in the second housing 720 . The first battery 800 and the second battery 900 may have a structure similar to the battery described with reference to FIGS. 2A to 6 . The first battery 800 and the second battery 900 include a positive plate (eg, the positive plate 210 of FIG. 2A ), a negative plate (eg, the negative plate 220 of FIG. 2A ) and a separator (eg, the separator 230 of FIG. 2A ). )) may include a jelly roll (eg, the jelly roll 200 of FIG. 2A ) including a structure in which the windings are wound and a plurality of electrode tabs. In the first battery 800 , an electrode tab connected to the positive electrode plate may be defined as a first electrode tab 810 , and an electrode tab connected to the negative electrode plate may be defined as a second electrode tab 820 . In the second battery 900 , an electrode tab connected to the positive electrode plate may be defined as a third electrode tab 910 , and an electrode tab connected to the negative electrode plate may be defined as a fourth electrode tab 920 .

According to various embodiments, a printed circuit board 740 may be disposed on the hinge member 730 . The printed circuit board 740 disposed on the hinge member 730 may be a printed circuit board 740 electrically connected to the first battery 800 and the second battery 900 . A battery control circuit for controlling the first battery 800 and the second battery 900 and a sensing circuit for measuring the states of the first battery 800 and the second battery 900 are located on the printed circuit board 740 . can

According to various embodiments, the printed circuit board 740 may include a substrate body 741 extending in the longitudinal direction. The first area 740A of the printed circuit board 740 may mean an area adjacent to the first end corresponding to one end of the substrate body 741 , and the second area 740B is other than the first area 740A. can mean the area of

According to various embodiments, at least some sections of the first electrode tab 810 and the second electrode tab 820 of the first battery 800 are bent to form the printed circuit board 740 disposed on the hinge member 730 . It may be connected to the first region 740A. The third electrode tab 910 and the fourth electrode tab 920 of the second battery 900 are also bent at least partially in the first region 740A of the printed circuit board 740 disposed on the hinge member 730 . can be connected to

Since both the first electrode tab 810 and the second electrode tab 820 are connected to the first area 740A of the printed circuit board 740 , the second area 740B of the printed circuit board 740 is controlled by the battery. A circuit 742 and a sensing circuit 743 may be located. A battery structure including a printed circuit board 740 including a battery control circuit 742 and a sensing circuit 743 may measure the state of the battery and control the battery.

The first electrode tab 810 , the second electrode tab 820 , the third electrode tab 910 , and the fourth electrode tab 920 are connected to the jelly roll, and opposite ends thereof are the first region of the printed circuit board 740 . 740A. The first electrode tab 810 and the second electrode tab 820 of the first battery 800 and the third electrode tab 910 and the fourth electrode tab 920 of the second battery 900 are disposed at different positions. ) are all connected to the first region 740A of the printed circuit board 740 , the first electrode tab 810 , the second electrode tab 820 , the third electrode tab 910 , and the fourth electrode tab 920 . ) may be extended by bending some sections.

For example, as shown in (a) of FIG. 7C , the direction ( Example: The direction A in FIG. 7C (a)) may not coincide with the direction facing the hinge member 730 in the first battery 800 (eg, the direction B in FIG. 7C (a)). In this case, the first electrode tab 810 and the second electrode tab 820 may be bent to extend in the direction of the hinge member 730 and to be connected to the first region 740A of the printed circuit board 740 . have.

As another example, as shown in (b) of FIG. 7C , the direction ( For example, the direction (eg, direction B of FIG. 7c (b)) may coincide with the direction facing the hinge member 730 in the first battery 800 (eg, direction B of FIG. 7c (b)). In this case, the first electrode tab 810 and the second electrode tab 820 may be bent and extended to be connected to the first region 740A of the printed circuit board 740 .

In this way, the plurality of electrode tabs connected to the first battery 800 and the second battery 900 disposed in different housings are all connected to the first region 740A, which is an area adjacent to the end of the printed circuit board 740 . can Accordingly, the second area 740B in which the battery control circuit 742 and the sensing circuit 743 are located in the printed circuit board 740 can be effectively secured. The states of the two batteries (the first battery 800 and the second battery 900) are respectively measured using the battery control circuit 742 and the sensing circuit 743 located on one printed circuit board 740, and Based on this, charging and discharging of each battery can be controlled.

In addition, at least two positive electrode substrate tabs protruding from different portions of the positive electrode plate to be connected to the first electrode tab may be formed on the positive electrode plate of the jelly roll of the battery, and the negative electrode plate of the jelly roll of the battery includes the At least two negative electrode base tabs protruding from different portions of the negative electrode plate to be connected to the second electrode tab may be formed.

In addition, the printed circuit board includes a substrate body, a first region that is a region adjacent to the first end of the substrate body, a second region that is an region adjacent to a second end opposite to the first end of the substrate body, and the second region A region between the first region and the second region may include a third region, and at least a portion of the first electrode tab of the battery may be bent to be connected to the first region of the printed circuit board, , The second electrode tab of the battery may have at least a partial section bent to be connected to the second region of the printed circuit board, and the sensing circuit may be located in the third region of the printed circuit board have.

Also, the first electrode tab and the second electrode tab of the battery may be bent in opposite directions.

The sealant of the battery may include a first sealant disposed on the first electrode tab and a second sealant disposed on the second electrode tab separately from the first sealant.

In addition, the printed circuit board may include a substrate body, a first region that is a region adjacent to the first end of the substrate body, and a second region that is a region other than the first region, and the first electrode of the battery At least a partial section of the tab may be bent to be connected to the first region of the printed circuit board, and the second electrode tab of the battery may have at least a partial section to be connected to the first region of the printed circuit board. It may be bent, and the sensing circuit may be located in the second region of the printed circuit board.

Also, the first electrode tab and the second electrode tab of the battery may be bent in the same direction.

The sealant may include a first sealant disposed on the first electrode tab and a second sealant disposed on the second electrode tab separated from the first sealant.

In addition, at least two positive electrode substrate tabs protruding from different portions of the positive electrode plate to be connected to the first electrode tab may be formed on the positive electrode plate of the jelly roll, and the negative electrode plate of the jelly roll, the second electrode tab At least two negative electrode substrate tabs protruding from different portions of the negative electrode plate may be formed to be connected to the negative electrode plate.

In addition, the printed circuit board includes a substrate body, a first region that is a region adjacent to the first end of the substrate body, a second region that is an region adjacent to a second end opposite to the first end of the substrate body, and the second region may include a third region positioned between the first region and the second region, wherein at least a portion of the first electrode tab may be bent to be connected to the first region of the printed circuit board; At least a portion of the electrode tab may be bent to be connected to the second region of the printed circuit board, and the sensing circuit may be located in the third region of the printed circuit board.

Also, the first electrode tab and the second electrode tab may be bent in opposite directions.

In addition, the printed circuit board may include a substrate body, a first region that is a region adjacent to the first end of the substrate body, and a second region that is a region other than the first region, wherein the first electrode tab comprises: At least a partial section may be bent to be connected to the first area of the printed circuit board, and at least a partial section of the second electrode tab may be bent to be connected to the first area of the printed circuit board, and the The sensing circuit may be mounted on the second region of the printed circuit board.

Also, the first electrode tab and the second electrode tab may be bent in the same direction.

In addition, the printed circuit board may include a substrate body, a first area that is an area adjacent to the first end of the board body, and a second area that is an area other than the first area, The first electrode tab and the second electrode tab, and the third electrode tab and the fourth electrode tab of the second battery may be connected to the first region of the printed circuit board, and the sensing circuit may include: It may be located in the second region of the substrate.

And the embodiments disclosed in the present document disclosed in the present specification and drawings are merely presented as specific examples to easily explain the technical content according to the embodiments disclosed in this document and help the understanding of the embodiments disclosed in this document, It is not intended to limit the scope of the embodiment. Accordingly, the scope of the various embodiments disclosed in this document is that, in addition to the embodiments disclosed herein, all changes or modifications derived from the technical ideas of the various embodiments disclosed in this document are included in the scope of the various embodiments disclosed in this document. should be interpreted

Claims

In an electronic device,

A jelly roll including a structure in which a positive electrode plate, a negative electrode plate and a separator are wound together, a battery pouch accommodating the jelly roll, a first electrode tab electrically connected to the positive electrode plate of the jelly roll and drawn out from the battery pouch, the A second electrode tab electrically connected to the negative electrode plate of the jelly roll and drawn out from the battery pouch, and a sealant disposed at a portion from which the first electrode tab and the second electrode tab are drawn out from the battery pouch to seal the battery pouch. to the battery;

a printed circuit board to which the first electrode tab and the second electrode tab are electrically connected; and

A sensing circuit positioned on the printed circuit board to measure the state of the jelly roll; includes,

The first electrode tab and the second electrode tab,

An electronic device electrically connected to the printed circuit board by extending at least a portion of the section to be bent.
According to claim 1,

At least two positive electrode substrate tabs are formed on the positive electrode plate of the jelly roll of the battery to protrude from different portions of the positive electrode plate to be connected to the first electrode tab,

At least two negative electrode substrate tabs are formed on the negative electrode plate of the jelly roll of the battery to be connected to the second electrode tab and protrude from different portions of the negative electrode plate.
According to claim 1,

The printed circuit board is

A substrate body, a first region that is a region adjacent to a first end of the substrate body, a second region that is an region adjacent a second end opposite the first end of the substrate body, and between the first region and the second region The area of includes a third area,

The first electrode tab of the battery,

At least a portion of the section is bent to be connected to the first area of the printed circuit board,

The second electrode tab of the battery,

At least a portion of the section is bent to be connected to the second area of the printed circuit board,

The sensing circuit is

an electronic device located in the third area of the printed circuit board.
4. The method of claim 3,

The first electrode tab and the second electrode tab of the battery are bent in opposite directions to each other.
According to claim 1,

The sealant of the battery,

An electronic device comprising: a first sealant disposed on the first electrode tab; and a second sealant disposed on the second electrode tab separated from the first sealant.
According to claim 1,

The printed circuit board is

a substrate body, a first region that is a region adjacent to the first end of the substrate body, and a second region that is a region other than the first region;

The first electrode tab of the battery,

At least a portion of the section is bent to be connected to the first area of the printed circuit board,

The second electrode tab of the battery,

At least a portion of the section is bent to be connected to the first area of the printed circuit board,

The sensing circuit is

an electronic device located in the second area of the printed circuit board.
7. The method of claim 6,

The first electrode tab and the second electrode tab of the battery are bent in the same direction.
7. The method of claim 6,

The sealant is

An electronic device comprising: a first sealant disposed on the first electrode tab; and a second sealant disposed on the second electrode tab separated from the first sealant.
According to claim 1,

a first housing;

a second housing; and

Further comprising; a hinge member for rotatably connecting the first housing and the second housing;

The battery is

disposed in at least one of the first housing and the second housing;

The printed circuit board is

An electronic device disposed on the hinge member.
In the battery structure,

Jelly roll comprising a structure in which a positive plate, a negative plate, and a separator are wound together;

a battery pouch accommodating the jelly roll;

a first electrode tab electrically connected to the positive electrode plate of the jelly roll and drawn out from the battery pouch;

a second electrode tab electrically connected to the negative electrode plate of the jelly roll and drawn out from the battery pouch;

a sealant disposed at a portion from which the first electrode tab and the second electrode tab are drawn out of the battery pouch to seal the portion of the battery pouch;

a printed circuit board to which the first electrode tab and the second electrode tab are electrically connected; and

A sensing circuit positioned on the printed circuit board to measure the state of the jelly roll; includes,

The first electrode tab and the second electrode tab,

A battery structure electrically connected to the printed circuit board by extending at least a portion of the section to be bent.
11. The method of claim 10,

At least two positive electrode substrate tabs protruding from different portions of the positive electrode plate to be connected to the first electrode tab are formed on the positive electrode plate of the jelly roll,

At least two negative electrode substrate tabs protruding from different portions of the negative electrode plate to be connected to the second electrode tab are formed on the negative electrode plate of the jelly roll.
11. The method of claim 10,

The printed circuit board is

A substrate body, a first region that is a region adjacent to the first end of the substrate body, a second region that is an region adjacent a second end opposite the first end of the substrate body, and between the first region and the second region including a third area located in

The first electrode tab,

At least a portion of the section is bent to be connected to the first area of the printed circuit board,

The second electrode tab,

At least a portion of the section is bent to be connected to the second area of the printed circuit board,

The sensing circuit is

A battery structure located in the third region of the printed circuit board.
13. The method of claim 12,

The sealant is

A battery structure comprising: a first sealant disposed on the first electrode tab; and a second sealant disposed on the second electrode tab separated from the first sealant.
11. The method of claim 10,

The printed circuit board is

a substrate body, a first region that is a region adjacent to the first end of the substrate body, and a second region that is a region other than the first region;

The first electrode tab,

At least a portion of the section is bent to be connected to the first area of the printed circuit board,

The second electrode tab,

At least a portion of the section is bent to be connected to the first area of the printed circuit board,

The sensing circuit is

A battery structure mounted on the second area of the printed circuit board.
15. The method of claim 14,

The sealant is

A battery structure comprising: a first sealant disposed on the first electrode tab; and a second sealant disposed on the second electrode tab separated from the first sealant.