KR101548730B1 - Battery pack including NFC antenna structure - Google Patents

Abstract

The present invention relates to a battery protection circuit package in favor of integration and miniaturization, and a battery pack comprising the same. The battery pack includes: a battery bare cell; a battery protection circuit package arranged on one side of an upper surface of the battery bare cell for comprising a first substrate, a protection IC arranged on the first substrate, a field effect transistor (FET), and at least one passive element; an antenna package arranged on the other side of the upper surface of the battery bare cell for comprising a second substrate, and an NFC antenna structure arranged on the second substrate; a conductive connection unit for electrically connecting the battery protection circuit package with the antenna package; and a case fixed by interposing the battery protection circuit package, and the antenna package on the battery bare cell for comprising a through-hole formed to expose an external connection terminal of the battery protection circuit package.

Description

[0001] The present invention relates to a battery pack including an NFC antenna structure,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a battery pack, and more particularly, to a battery pack capable of downsizing and simplifying a process.

Near Field Communication (NFC) is a non-contact short-range wireless communication standard that enables wireless communication between electronic devices at a short distance within 10 cm using a frequency of 13.56 MHz. It was developed jointly by NXP Semiconductor and Sony Japan. NFC's transmission rates per second are 106 Kbps, 212 Kbps, 424 Kbps or 848 Kbps. Its proximity characteristics and encryption technology provide excellent security and it is possible to identify devices without any complicated pairing procedure. There is an advantage that it can be recognized. In particular, NFC is a smart card type non-contact wireless communication technology that utilizes RFID technology. It is bi-directional compared to a smart card, has a relatively large storage memory space, and has a wide range of applicable services. Accordingly, this technology has been introduced to electronic devices such as smart phones and tablet PCs, which have recently been commercialized.

On the other hand, batteries are used in portable terminals such as smart phones and tablet PCs. Lithium-ion batteries are the most widely used batteries in portable handsets, but they also generate heat during overcharging and overcurrent, and when the temperature rises due to heat generation, they may deteriorate performance as well as the risk of explosion. Therefore, a conventional battery is equipped with a protection circuit device that detects and blocks overcharge, over-discharge, and over-current, or a protection circuit structure that detects overcharge, over-discharge, do.

Recently, products combining an NFC antenna structure with a battery of a portable terminal have been introduced. However, in this case, a process of separately coupling an NFC antenna structure with a battery is further required, which increases manufacturing cost and requires additional space Resulting in a large-sized battery for the purpose of charging.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the various problems including the above-described problems, and to realize integration and miniaturization of a battery pack having an NFC antenna structure. However, these problems are exemplary and do not limit the scope of the present invention.

A battery pack according to an aspect of the present invention is provided. The battery pack includes a battery bare cell; A battery protection circuit package disposed on one side of the upper surface of the battery bare cell and including a first substrate and a protection IC disposed on the first substrate, a field effect transistor (FET), and at least one passive element; An antenna package disposed on the other side of the upper surface of the battery bare cell and including a second substrate and an NFC antenna structure disposed on the second substrate; A conductive connection portion electrically connecting the battery protection circuit package and the antenna package; And a case, which is fixed on the battery bare cell through the battery protection circuit package and the antenna package, and includes a through hole formed to expose an external connection terminal of the battery protection circuit package.

In the battery pack, the battery protection circuit package and the antenna package are spaced apart from each other with respect to a negative terminal of the battery bare cell, and at least a part of the battery protection circuit package and at least a part of the antenna package, And can be fixedly connected to the upper surface of the cell.

In the battery pack, the conductive connection portion may include a shape covering at least a part of the periphery of the battery bare cell.

In the battery pack, if the side surface of the battery bare cell is configured to have a narrow width from the wide surface, the conductive connection portion may include a narrow width surface of the battery bare cell and a bottom surface of the battery bare cell .

In the battery pack, at least a part of the conductive connection portion may be embedded in the case.

In the battery pack, the battery protection circuit package may include a first pad and a second pad sequentially exposed in the direction away from the center of the upper surface of the battery bare cell, A connection terminal is disposed between the first pad and the second pad. The antenna package includes a third pad and a fourth pad sequentially exposed in a direction away from the center of the upper surface of the battery bare cell exposed to the outside. In this case, the conductive connection portion may include: a first conductive connection portion disposed on the upper surface of the battery bare cell to connect the first pad and the third pad; And a second conductive connection part arranged to surround the side surfaces and the bottom surface of the battery bare cell so as to connect the second pad and the fourth pad.

In the battery pack, the case may be formed to enclose a part of a side surface and an upper surface and a lower surface of the battery bare cell so as to protect the first conductive connection portion and the second conductive connection portion from the outside.

In the battery pack, the first conductive connection portion and the second conductive connection portion may be embedded in the case.

In the battery pack, the first conductive connection portion and the second conductive connection portion may be conductive lines or conductive foils.

In the battery pack, the case includes at least a battery bare cell, at least a portion of the battery protection circuit package disposed on the upper surface of the battery bare cell, at least a portion of the antenna package, and the conductive connection portion are disposed inside the injection mold The battery protection cell package, and the antenna package while inserting the conductive connection portion by inserting injection molding of the resin melt into the battery bare cell, the battery protection circuit package, and the antenna package.

According to some embodiments of the present invention as described above, a battery pack advantageous for integration and miniaturization can be realized. Of course, the scope of the present invention is not limited by these effects.

1A is a circuit diagram of a battery protection circuit to be implemented by a part of a battery protection circuit package according to a comparative example of the present invention.
1B is a diagram illustrating a configuration of a general short range wireless communication (NFC).
2 is an exploded perspective view of a battery pack having a battery protection circuit package according to a comparative example of the present invention.
3 is a perspective view of a battery protection circuit package according to a comparative example of the present invention.
4 is an assembled perspective view of a battery pack having a battery protection circuit package according to a comparative example of the present invention before a labeling process.
5 is a diagram illustrating a portion of a battery pack in accordance with some embodiments of the present invention.
6A and 6B are diagrams illustrating a battery protection circuit package that constitutes a battery pack according to some embodiments of the present invention.
7A and 7B are views illustrating an antenna package constituting a battery pack according to some embodiments of the present invention.
8A is a diagram illustrating a portion of a battery pack in accordance with some embodiments of the present invention.
FIG. 8B is an enlarged view of the antenna package of the structure shown in FIG. 8A, and FIG. 8C is an enlarged view of the battery protection circuit package among the structures shown in FIG. 8A. FIG. 8D is an enlarged view of the E region in the structure shown in FIG. 8A. FIG.
9A is a diagram illustrating a configuration of a conductive connection portion and a connecting pad in a battery pack according to some embodiments of the present invention.
9B is a diagram illustrating a configuration of a conductive connection portion and a connecting pad in a battery pack according to some other embodiments of the present invention.
FIG. 10A is a perspective view illustrating a case constituting a battery pack according to some embodiments of the present invention, and FIG. 10B is a perspective view illustrating a portion of the case disclosed in FIG. 10A.
10C is a perspective view illustrating a battery pack according to some embodiments of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The embodiments of the present invention are described in order to more fully explain the present invention to those skilled in the art, and the following embodiments may be modified into various other forms, The present invention is not limited to the embodiment. Rather, these embodiments are provided so that this disclosure will be more thorough and complete, and will fully convey the concept of the invention to those skilled in the art. In the drawings, the thickness and size of each layer are exaggerated for convenience and clarity of explanation.

It is to be understood that throughout the specification, when an element such as a film, region or substrate is referred to as being "on", "connected to", "laminated" or "coupled to" another element, It is to be understood that elements may be directly "on", "connected", "laminated" or "coupled" to another element, or there may be other elements intervening therebetween. On the other hand, when one element is referred to as being "directly on", "directly connected", or "directly coupled" to another element, it is interpreted that there are no other components intervening therebetween do. Like numbers refer to like elements. As used herein, the term "and / or" includes any and all combinations of one or more of the listed items.

Although the terms first, second, etc. are used herein to describe various elements, components, regions, layers and / or portions, these members, components, regions, layers and / It is obvious that no. These terms are only used to distinguish one member, component, region, layer or section from another region, layer or section. Thus, a first member, component, region, layer or section described below may refer to a second member, component, region, layer or section without departing from the teachings of the present invention.

Also, relative terms such as "top" or "above" and "under" or "below" can be used herein to describe the relationship of certain elements to other elements as illustrated in the Figures. Relative terms are intended to include different orientations of the device in addition to those depicted in the Figures. For example, in the figures the elements are turned over so that the elements depicted as being on the top surface of the other elements are oriented on the bottom surface of the other elements. Thus, the example "top" may include both "under" and "top" directions depending on the particular orientation of the figure. If the elements are oriented in different directions (rotated 90 degrees with respect to the other direction), the relative descriptions used herein can be interpreted accordingly.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a," "an," and "the" include singular forms unless the context clearly dictates otherwise. Also, " comprise "and / or" comprising "when used herein should be interpreted as specifying the presence of stated shapes, numbers, steps, operations, elements, elements, and / And does not preclude the presence or addition of one or more other features, integers, operations, elements, elements, and / or groups.

Hereinafter, embodiments of the present invention will be described with reference to the drawings schematically showing ideal embodiments of the present invention. In the figures, for example, variations in the shape shown may be expected, depending on manufacturing techniques and / or tolerances. Accordingly, the embodiments of the present invention should not be construed as limited to the particular shapes of the regions shown herein, but should include, for example, changes in shape resulting from manufacturing.

FIG. 1A is a circuit diagram of a battery protection circuit to be implemented by a part of a battery protection circuit package according to a comparative example of the present invention, and FIG. 1B is a diagram illustrating a configuration of a general short range wireless communication (NFC). FIG. 3 is a perspective view of a battery protection circuit package according to a comparative example of the present invention, and FIG. 4 is a perspective view of a battery protection circuit package according to a comparative example of the present invention FIG. 2 is a perspective view illustrating a battery pack according to an embodiment of the present invention; FIG.

The battery protection circuit to be implemented by a part of the battery protection circuit package constituting the battery pack according to some embodiments of the present invention may be the same as the protection circuit according to the comparative example of the present invention shown in FIG. However, in some cases, the battery protection circuit package constituting the battery pack according to some embodiments of the present invention does not include the capacitors C3, C4, C5, and C6 constituting the NFC matching device shown in FIG. 1A . In view of this, the battery protection circuit will be described below.

Referring to FIG. 1A, the battery protection circuit 10 includes first and second internal connection terminals B + and B- connected to a battery bare cell, and is connected to a charger during charging. And first to third external connection terminals P +, CF, and P- for connecting to an operating electronic device (e.g., a portable terminal or the like). Furthermore, it may further include a fourth external connection terminal NFC1. Here, the first external connection terminal P + and the third external connection terminal P- of the first to third external connection terminals P +, CF, and P- are for power supply and the other is an external connection terminal The second external connection terminal CF divides the battery, for example, and charges the battery according to the battery. The second external connection terminal CF may be a thermistor, which is a component for sensing the battery temperature during charging, and may be used as a terminal to which other functions are applied.

The battery protection circuit 10 is connected to the connection structure of the dual FET chip 110, the protection integrated circuit 120, the resistors R1, R2 and R3, the varistor V1 and the capacitors C1 and C2 . The dual FET chip 110 includes a first field effect transistor (FET1) and a second field effect transistor (FET2) having a drain common structure. The protection IC 120 is connected to the first internal connection terminal B + which is the positive terminal of the battery through the resistor R1 and is connected to the first node n1 through the first node n1, A terminal (VDD terminal) for sensing a voltage application and a battery voltage, a reference terminal (VSS terminal) serving as a reference for an operation voltage inside the protection IC 110, a sensing terminal (V- A discharge cutoff signal output terminal (DO terminal) for turning off the first field effect transistor FET1 in the overdischarge state, a charge cutoff signal output terminal C0 for turning off the second field effect transistor FET2 in the overcharge state, Terminal).

At this time, the inside of the protection IC 120 includes a reference voltage setting unit, a comparison unit for comparing the reference voltage with the charge / discharge voltage, an overcurrent detection unit, and a charge / discharge detection unit. Here, the criterion of charging and discharging states can be changed to a specification (SPEC) required by the user, and the charging / discharging state is determined by recognizing the voltage difference of each terminal of the protection IC 120 according to the determined standard.

When the protection IC 120 reaches an over-discharge state at the time of discharging, the DO terminal becomes LOW to turn off the first field effect transistor FET1, and when the overcharge state is reached, the CO terminal becomes low, The field effect transistor FET2 is turned off and the second field effect transistor FET2 is turned off at the time of charging when the overcurrent flows and the first field effect transistor FET1 at the time of discharging.

The resistor R1 and the capacitor C1 serve to stabilize the variation of the power supply of the protection IC 120. [ The resistor R1 is connected between the first node n1 which is the supply node of the battery power supply V1 and the VDD terminal of the protection IC 120 and the capacitor C1 is connected between the VDD terminal and the VSS terminal of the protection IC do. Here, the first node n1 is connected to the first internal connection terminal B + and the first external connection terminal P +. When the resistance R1 is increased, the detection voltage becomes higher due to the current penetrated into the protection IC 120 at the time of voltage detection. Therefore, the value of the resistor R1 is set to an appropriate value of 1 K or less. Also, for stable operation, the value of the capacitor C1 has an appropriate value of 0.01 mu F or more.

And the resistors R1 and R2 become current limiting resistors when the high voltage charger or charger exceeding the absolute maximum rating of the protection IC 120 is connected upside down. The resistor R2 is connected between the V- terminal of the protection IC 120 and the second node n2 to which the source terminal S2 of the second field effect transistor FET2 is connected. Since the resistors R1 and R2 may cause power consumption, the sum of the resistance values of the resistors R1 and R2 is usually set to be larger than 1 K ?. If the resistance R2 is too large, the return may not occur after the overcharge cutoff, so that the value of the resistance R2 is set to a value of 10K or less.

The capacitor C2 is connected to the source terminal S1 of the first node n2 (or the third external connection terminal P-) and the first field effect transistor FET1 (or the VSS terminal, the second internal connection terminal B -)). The capacitor C2 does not significantly affect the characteristics of the battery protection circuit product, but is added for user's request or stability. The capacitor C2 is for stabilizing the system by improving the resistance to voltage fluctuation and external noise.

The resistor R3 and the varistor V1 are elements for ESD (Electrostatic Discharge) and surge protection and are connected in parallel to each other. The second external connection terminal CF and the second node n2 Or the third external connection terminal P-). The resistance of the varistor (V1) is lowered when an overvoltage occurs. When the overvoltage is generated, the resistance of the varistor (V1) is lowered, thereby minimizing circuit damage due to overvoltage.

Meanwhile, in addition to the configuration of the battery protection circuit described above, an NFC circuit 141 may be added to support Near Field Communication (NFC). The added NFC circuit 141 may include, for example, an NFC external connection terminal NFC1, NFC connection terminals PD1 and PD2, and NFC matching elements C3, C4, C5, and C6. The NFC connection terminals PD1 and PD2 disclosed in the circuit diagram of FIG. 1A are implemented as terminals 60-1 and 60-2 in the package 300a shown in FIG. 3, (472, 474 in Fig. 2) of the NFC antenna (470 in Fig. 2) being placed. The NFC antenna 470 may be, for example, a loop-shaped antenna. When the ends 472 and 474 of the NFC antenna structure are brought into contact with the NFC connection terminals PD1 and PD2, the NFC matching elements C3, C4, C5, and C6 are electrically connected to the NFC antenna 470, closed loop can be formed. The NFC matching elements C3, C4, C5, and C6 may be, for example, capacitors for frequency matching. For example, both ends 472 and 474 of the NFC antenna 470 are connected to capacitors, which are the NFC matching elements, to form a closed loop, and the NFC antenna 470 and the capacitors C3, C4, By using the generated resonance, a frequency region for NFC communication of 13.56 MHz can be generated and communicated with the NFC device.

Referring to FIG. 1B, a typical short range wireless communication (NFC) configuration includes an NFC control integrated circuit 142, a buffer chip 144, and a reader 148. A first inductor 146 and a second inductor 147 are provided between the waveguide chip 144 and the reader 148 and a first capacitor portion 145 is provided between the waveguide chip 144 and the first inductor 146, May be provided. A second capacitor portion 143 may be provided between the NFC control integrated circuit portion 142 and the idler chip 144.

The NFC antenna 470 corresponds to the first inductor 146 shown in FIG. 1B and the capacitors C3, C4, C5, and C6 correspond to the first capacitor 145 shown in FIG. 1B. do. The first inductor 146 and the first capacitor portion 145 are connected to the NFC control integrated circuit portion 142, the second capacitor portion 143 and the breaker chip 144 through the NFC external connection terminal NFC1 .

2 to 4, in the battery protection circuit package 300a and the battery pack 700a according to the comparative example of the present invention, the NFC antenna 470 is connected to the battery cell 600a constituting the battery pack 600a As shown in Fig. Specifically, when the side of the battery bare cell 400 is composed of a wide surface (a surface substantially perpendicular to the y-axis direction) and a narrow surface (a surface substantially perpendicular to the x-axis direction) (400). ≪ / RTI > The ends 472 and 474 of the NFC antenna 470 may be bonded to the terminal pads 60-1 and 60-2 of the battery protection circuit package 300a by, for example, a soldering process. However, since the battery protection circuit package 300a for the antenna soldering process requires the configuration of the terminal pads 60-1 and 60-2, it is disadvantageous in downsizing the package and involves a limitation in securing the space inside the package. Meanwhile, the manufacturing process of the battery pack may be complicated by the antenna soldering process. In addition, the joint portion between the NFC antenna 470 and the battery protection circuit package 300a is weak in structure, so that the shear strength may be low in view of the overall structure.

In the battery protection circuit package 300a and the battery pack 700a according to the comparative example of the present invention, the upper case 602 is fixed with the battery protection circuit package 300a on the upper surface of the battery bare cell 400, do. The upper case 602 includes a through hole 604 for exposing the external connection terminals 50-2, 50-3, 50-4, and 50-5 of the battery protection circuit package 300a to the outside.

In the battery pack according to the embodiments of the present invention, the battery protection circuit package is disposed on one side of the battery bare cell and the antenna package including the NFC antenna structure on the other side of the battery bare cell. Respectively.

5 is a diagram illustrating a portion of a battery pack in accordance with some embodiments of the present invention.

Referring to FIG. 5, the battery pack according to some embodiments of the present invention includes a battery bare cell 400, a battery protection circuit package 300b disposed on one side of the upper surface of the battery bare cell 400, And an antenna package 300c disposed on the other side of the upper surface of the antenna package 300c. The battery protection circuit package 300b and the antenna package 300c are disposed apart from each other with respect to the negative terminal 410 of the battery bare cell 400 and at least a part of the battery protection circuit package 300b and the antenna package 300c May be fixedly connected to the upper surface of the battery bare cell 400.

The battery bare cell 400 comprises an electrode assembly and a cap assembly. The electrode assembly includes a positive electrode plate formed by applying a positive electrode active material to a positive electrode collector, a negative electrode plate formed by applying a negative electrode active material to a negative electrode collector, and a negative electrode plate interposed between the positive electrode plate and the negative electrode plate. The separator may be made of a separator. The positive electrode tab attached to the positive electrode plate and the negative electrode tab attached to the negative electrode plate may be drawn out from the electrode assembly.

The cap assembly includes an anode terminal 410, a gasket (not shown), a cap plate 430, and the like. The cap plate 430 may serve as a positive electrode terminal. The cathode terminal 410 may be referred to as a cathode cell or an electrode cell. The gasket may be formed of an insulating material to insulate the cathode terminal 410 from the cap plate 430. Therefore, the electrode terminal of the battery bare cell may include the negative terminal 410 and the cap plate 430. The upper surface of the battery bare cell 400 may include a cap plate 430 and a cathode terminal 410.

Although not shown in the drawing, a holder may be interposed between the upper surface of the battery bare cell 400 and the battery protection circuit package 300b and the antenna package 300c. The holder may include a body portion formed of resin and at least one through hole formed in the body portion. The holder serves as a guide for mounting the battery protection circuit package 300b and the antenna package 300c on the upper surface of the battery bare cell 400 and further includes a battery protection circuit package 300b and an antenna package 300c, May be fixed on the upper surface (430) of the battery bare cell (400). Further, the holder may be combined with the case 600 provided on the battery bare cell 400 to fix the case 600. [

6A and 6B are diagrams illustrating a battery protection circuit package that constitutes a battery pack according to some embodiments of the present invention.

6A and 6B, a battery protection circuit package 300b includes a protection IC 120, a field effect transistor 110, and a protection IC 120 disposed on a first substrate 50 and a first substrate 50, And a passive element 130. The battery protection circuit package 300b includes a sealing material 250 sealing the protection IC 120, the field effect transistor 110 and the at least one passive element 130 on the first substrate 50 .

The first substrate 50 includes a first internal connection terminal lead 50-1 electrically connected to the electrode terminals 410 and 430 of the battery bare cell 400, And a second internal connection terminal lead (50-8); And the leads 50-3 for the external connection terminals, which are disposed between the first internal connection terminal lead 50-1 and the second internal connection terminal lead 50-8 and constitute a plurality of external connection terminals, 50-4, 50-5, and 50-6).

For example, in the battery protection circuit package 300b together with the circuit diagram shown in FIG. 1A, a lead 50-1 for a first internal connection terminal corresponds to a first internal connection terminal (B + in FIG. 1A) The lead for the second connection terminal 50-8 corresponds to the second internal connection terminal (B- in Fig. 1A), the lead for the external connection terminal 50-3 corresponds to the first external connection terminal (P + , The lead 50-4 for the external connection terminal corresponds to the second external connection terminal (CF in Fig. 1A), and the lead 50-6 for the external connection terminal corresponds to the third external connection terminals 1a, and the lead 50-5 for the external connection terminal corresponds to the NFC external connection terminal (NFC1 in FIG. 1A).

The battery protection circuit package 300b includes a first pad 50-7 and a second pad 50-7 sequentially exposed in the direction away from the center of the upper surface of the battery bare cell 400, And a pad 50-2. The first pad 50-7 and the second pad 50-2 may have the same level as the encapsulant 250 so as not to protrude from the encapsulant 250. [ The first pad 50-7 is at least a part of any one of the plurality of leads constituting the lead frame constituting the first substrate 50 and the second pad 50-2 is at least part of the lead of the first substrate 50 50) of the lead frame. Among the leads constituting the lead frame, the external connection terminal leads 50-3, 50-4, 50-5, and 50-6 are connected to the first pad 50-7 and the second pad 50- 2).

In the lead frame constituting the first substrate 50, the arrangement, configuration, number and the like of the leads can be appropriately modified. The configuration, number, arrangement, and the like of the protection IC 120, the field effect transistor 110, and at least one passive element 130 constituting the battery protection circuit element can be appropriately modified in accordance with the additional function of the protection circuit In the following, an exemplary configuration will be described.

6A, the arrangement of the dual FET chip 110 and the protection IC 120 may have a structure in which the dual FET chip 110 and the protection IC 120 are stacked one on top of the other, For example, the protection IC 120 may be stacked on the upper surface of the dual FET chip 110. As a modified embodiment, the dual FET chip 110 and the protection IC 120 may have a structure in which they are disposed adjacent to each other.

The dual FET chip 110 includes a first field effect transistor and a second field effect transistor having a common drain structure, that is, two field effect transistors (FETs), and an external terminal is connected to a first gate terminal And the second source terminal G2 and the second source terminal S2 of the second field effect transistor are provided on the upper surface of the dual FET chip 110. The first FET terminal G1 and the first source terminal S1, In addition, the common drain terminal D may be provided on the lower surface of the dual FET chip 110.

The protection ICs 120 may be stacked on the upper surface of the dual FET chip 110. The protection IC 120 is stacked on a region (for example, a central portion) excluding a portion where external terminals on the dual FET chip 110 are disposed. At this time, an insulating film for insulation may be disposed between the protection IC 120 and the dual FET chip 110, and the protection IC 120 and the dual FET chip 110 may be bonded with an adhesive of an insulating material.

After the protection IC 120 is stacked on the upper surface of the dual FET chip 110, the DO terminal DO of the protection IC 120 is electrically connected to the first gate terminal G1 via a wire or a wiring And the CO terminal (CO) of the protection IC 120 is electrically connected to the second gate terminal G2 through a wire or a wiring.

By installing the protection IC 120 and the dual FET chip 110 having such a laminated structure, the area to be mounted on the substrate can be reduced, thereby realizing miniaturization or high capacity of the battery.

The encapsulant 250 may be sealed to protect the battery protection circuit elements 110, 120, and 130 mounted on the first substrate 50 from the outside. The encapsulant 250 may comprise, for example, an epoxy molding compound (EMC).

In the embodiments of the present invention, the lead frame is a structure in which a plurality of leads spaced apart from each other in a metal frame are patterned and can be distinguished from a printed circuit board (PCB) having a metal wiring layer formed on an insulating core, have.

According to an embodiment of the present invention, the first substrate 50 may be formed of only a lead frame, not a printed circuit board. In this case, the battery protection circuit elements 110, 120, and 130 may be mounted using surface mounting technology on at least a part of the surface of the lead frame that is the first substrate 50. Furthermore, any one selected from the group consisting of the protection IC 120, the field effect transistor 110 and the plurality of leads 50-2, 50-3, 50-4, 50-5, 50-6, The battery protection circuit can be configured without using a separate printed circuit board by providing the electrical connection member 135 for electrically connecting the two. The electrical connection member 135 may include a bonding wire or a bonding ribbon.

The electrical connecting member 135 such as a bonding wire or a bonding ribbon is disposed on the lead frame as the first substrate 50 to simplify the process of designing and manufacturing the lead frame for constituting the battery protection circuit Can have a significant advantage. If the electrical connecting member 135 is not incorporated in the battery protection circuit in the modified embodiment of the present invention, the configuration of the plurality of leads constituting the lead frame becomes very complicated, so that effectively providing an appropriate lead frame It may not be easy.

In one embodiment of the present invention in which the first substrate 50 is composed of only the lead frame, the protection IC 120 and / or the field effect transistor 110 are inserted and fixed on the lead frame in the form of a semiconductor package But is mounted on at least a part of the surface of the lead frame by Surface Mounting Technology in the form of a chip die sawed from a wafer not sealed with a separate encapsulant, . Here, a chip die is a chip die, which is formed by performing a sowing process on a wafer on which a plurality of array structures (for example, a protection IC and a field effect transistor) are formed, ≪ / RTI > That is, when the protection IC 120 and / or the field effect transistor 110 are mounted on the lead frame, the protection IC 250 is mounted on the lead frame without being sealed with a separate encapsulant, Since the sealing member 120 and / or the field effect transistor 110 are sealed, the sealing material can be formed only once when the battery protection circuit package 300b is implemented. On the other hand, when the passive element 130, the protection IC 120, and / or the field effect transistor 110 are separately inserted into the printed circuit board to be fixed or mounted, a single molding process is first required for each component , A further molding process is additionally required for each component mounted after being fixed or mounted on a printed circuit board, so that the manufacturing process may be complicated and the manufacturing cost may increase.

In the battery protection circuit package 300b according to another embodiment of the present invention, the first substrate 50 may be composed of a printed circuit board. In this case, the battery protection circuit elements 110, 120, and 130 are mounted on the upper surface of the printed circuit board. A separate lead coupled to both ends of the printed circuit board is bonded to the upper surface of the battery bare cell 400 so that the battery protection circuit package 300b can be fixed to the upper surface of the battery bare cell 400.

Meanwhile, according to another modified embodiment of the present invention, the first substrate 50 may be composed of a lead frame and a printed circuit board electrically connected to the lead frame. In this case, the battery protection circuit elements 110, 120, and 130 are mounted on the upper surface of the printed circuit board.

Optionally, a PTC structure may be connected to one end of the battery protection circuit package 300b according to some embodiments of the present invention. The PTC structure includes a metal layer attached to a first surface which is a surface of a PTC device, a top surface or a bottom surface of the PTC device, and a conductive connecting member attached to a second surface, can do. The metal layer may be bonded to any one lead selected from the first internal connecting terminal lead (B +) and the second internal connecting terminal lead (B-), and the connecting member may be bonded to the electrode terminal of the battery bare cell .

A PTC (Positive Temperature Coefficient) element can be formed, for example, by dispersing conductive particles in a crystalline polymer. Therefore, the PTC element becomes a passage through which current flows between the metal layer and the conductive connecting member at a temperature lower than the set temperature. However, when the temperature exceeds the set temperature due to the occurrence of the overcurrent, the crystalline polymer swells and the resistance between the conductive particles dispersed in the crystalline polymer is separated and the resistance is rapidly increased. Accordingly, the flow of current between the metal layer and the conductive connecting member is cut off or the flow of current is reduced. Since the flow of current can be cut off by the PTC element, the PTC element serves as a safety device for preventing the battery from being ruptured. When the temperature is lower than the set temperature again, the PTC device shrinks the crystalline polymer and restores the connection between the conductive particles, so that the current flows smoothly.

The length of the lead frame constituting the first substrate 50 in the battery protection circuit package 300b having the above-described structure is set such that the lead frame is located at the center of the upper surface of the battery bare cell 400 (410) on the one side. Further, the battery protection circuit package 300b to which the PTC structure is coupled may be configured to be disposed on one side with respect to the center of the upper surface of the battery bare cell 400 (e.g., the negative terminal 410). For example, the length of the battery protection circuit package 300b to which the PTC structure 350 is coupled may be approximately half the total length of the cap plate 430. [

7A and 7B are views illustrating an antenna package constituting a battery pack according to some embodiments of the present invention.

7A and 7B, the antenna package 300c includes an NFC antenna structure 140 disposed on a second substrate 72 and a second substrate 72. [ Further, the antenna package 300c includes an encapsulant 250 that seals the NFC antenna structure 140 on the second substrate 72. [ The encapsulating material 250 constituting the battery protection circuit package 300b and the encapsulating material 250 constituting the antenna package 300c may be formed of the same material but may be formed of different materials have.

 The second substrate 72 may include, for example, a junction terminal lead 72-1 disposed on one side and capable of being bonded to the upper surface of the battery bare cell 400, an NFC antenna structure 140 on which the NFC antenna structure 140 can be mounted And a lead frame 72 having a mounting lead 72-3. Further, the lead frame 72 may further include a pair of spaced connection terminal leads 72-2 and 72-4, and each of the third pad 72-4 and the fourth pad 72- 2).

In the lead frame constituting the second substrate 72, the arrangement, configuration, number and the like of the leads can be appropriately modified. For example, the lead frame constituting the second substrate 72 may include a third pad 72-4 and a fourth pad 72-2 which are not provided with separate mounting leads and are spaced apart from each other. (140) can be mounted.

According to a modified embodiment of the present invention, the second substrate 72 may be composed of only a printed circuit board. In this case, the NFC antenna structure 140 is mounted on the upper surface of the printed circuit board, and the third pad 72-4 and the fourth pad 72-2 are mounted on the printed circuit board on which the NFC antenna structure 140 is mounted. And may be formed on the opposite surface of the upper surface of the substrate. The antenna package 300c may be fixed to the upper surface of the battery bare cell 400 by connecting a separate lead to at least one of the opposite ends of the printed circuit board to the upper surface of the battery bare cell 400.

Meanwhile, according to another modified embodiment of the present invention, the second substrate 72 may be composed of a lead frame and a printed circuit board electrically connected to the lead frame. In this case, the NFC antenna structure 140 can be mounted on the upper surface of the printed circuit board.

The antenna package 300c includes a third pad 72-4 and a fourth pad 72-4 that are sequentially exposed in the direction away from the center of the upper surface of the battery bare cell 400, 2). The third pad 72-4 and the fourth pad 72-2 may have the same level as the encapsulant 250 so as not to protrude from the encapsulant 250. [ On the other hand, the third pad 72-4 is at least a part of one of the plurality of leads constituting the lead frame constituting the second substrate 72, and the fourth pad 72-2 is at least part of the lead And may be at least a part of any one of the plurality of leads constituting the lead frame constituting the substrate 72. [

One of the main technical aspects of the present invention is that the antenna package 300c includes an NFC antenna structure 140 and will be described in detail below with respect to this NFC antenna structure 140. [

The NFC antenna structure 140 constituting the antenna package 300c according to some embodiments of the present invention may have, for example, a chip shape.

The NFC antenna structure 140 comprising the antenna package 300c according to some embodiments of the present invention may include an inductor capable of resonating in the NFC frequency band wherein the NFC antenna structure 140 The inductor constituting the inductor corresponds to the first inductor 146 shown in FIG. 1B and can replace the NFC antenna 470 constituting the battery protection circuit package 300a according to the comparative example of the present invention shown in FIG. 2 have.

Further, the NFC antenna structure 140 constituting the antenna package 300c according to the modified embodiments of the present invention includes the first capacitor portion 145, the second capacitor portion 143, and the NFC control portion 140 shown in FIG. 1B, And an integrated circuit (IC) In another modified embodiment, the antenna package 300c includes the first capacitor portion 145, the second capacitor portion 143, and the second capacitor portion 143 shown in FIG. 1B separately from the NFC antenna structure 140 as well as the NFC antenna structure 140, And an NFC control integrated circuit unit 142. [0035]

Since the configuration of the terminal pads (60-1 and 60-2 in Fig. 3) for the antenna soldering process is unnecessary by introducing the NFC antenna structure 140 in the antenna package 300c according to some embodiments of the present invention, The protection circuit package 300b can be downsized, which is advantageous in securing an internal space. Also, since the antenna soldering process can be omitted, the manufacturing process of the battery pack can be simplified. Further, by introducing the antenna package 300c including the NFC antenna structure 140 without arranging and bonding the film-like NFC antenna to the outside of the battery protection circuit package, the strength can be improved from the viewpoint of the overall structure.

5, 7A and 7B, the NFC antenna structure 140 including the inductor capable of resonating in the NFC frequency band may have various winding structures.

As a first example, the winding structure shown in Fig. 7A includes a coil having a first winding direction. For example, the winding structure may include a core 146a of nickel ferrite; And a coil 146c having a first winding direction wound in a direction parallel to the y-axis direction and the z-axis direction so as to surround the bobbin 146b. In this case, the direction of the induced magnetic field generated in conjunction with the NFC reader 148 is parallel to the x-axis direction. That is, when the side of the battery bare cell 400 is composed of a wide surface (a surface substantially perpendicular to the x axis) and a narrow surface (a surface substantially perpendicular to the y axis), the NFC antenna structure 140 including the inductor, The direction of the magnetic field induced in the battery bare cell 400 may be perpendicular to the wide surface of the battery bare cell 400. In the case of having such a winding structure, near field communication can be realized when the wide side of the side of the NFC reader and the battery bare cell 400 are positioned side by side.

As a second example, in the antenna package 300c, the NFC antenna structures 140 including the winding structure shown in FIG. 7A (a) may be arranged in a plurality of spaced apart from each other. If the NFC antenna structure 140 has a chip shape, the antenna package 300c may include a plurality of chips including an NFC antenna. The description of each winding structure is the same as that described in the first example. That is, each of the plurality of NFC antenna structures 140 includes a coil 146c having the same first winding direction as shown in (a) of FIG. 7A, (The plane perpendicular to the x axis) and the narrow plane (the plane perpendicular to the y axis), the direction of the magnetic field induced in the NFC antenna structures 140 is larger than the width of the battery bare cell 400 And may be perpendicular to the plane. On the other hand, as a modified embodiment, when the NFC antenna structure 140 has a chip shape, the antenna package 300c has a single number of chips including an NFC antenna, A plurality of winding structures shown in Fig. Near field communication can be realized when the wide surfaces of the side surfaces of the NFC reader and the battery bare cell 400 are positioned in parallel with each other. In the case of the NFC antenna structure 140 of the first example, The effect of improving the sensitivity of the near-field communication can be expected.

As a third example, the antenna package 300c includes a plurality of NFC antenna structures 140 spaced from each other, and the antenna structure of some of the plurality of NFC antenna structures 140 is shown in FIG. 7A (a) As shown, the antenna structure includes a coil 146c having a first winding direction, and the remaining one of the plurality of NFC antenna structures 140 includes a first winding (not shown) And a coil 146c having a second winding direction perpendicular to the first coil direction. For example, the winding structure having the first winding direction may include a core 146a made of nickel ferrite; And a coil (146c) wound in a direction parallel to the y-axis direction and the z-axis direction so as to surround the bobbin (146b), and the winding structure having the second winding direction includes a core (146a) made of nickel ferrite; And a coil 146c wound in a direction parallel to the x-axis direction and the z-axis direction so as to surround the bobbin 146b. When the side surface of the battery bare cell 400 is constituted by a wide surface (plane perpendicular to the x axis) and a narrow plane (plane perpendicular to the y axis), the direction of the magnetic field induced in the coil having the first direction of winding is The direction of the magnetic field induced in the coil having the second winding direction may be perpendicular to the narrow surface of the side of the battery bare cell 400. [

If the NFC antenna structure 140 has a chip shape, the antenna package 300c includes a chip-type first antenna structure having the first winding direction winding structure and a chip having the second winding direction winding structure. The second antenna structure may be provided. As another example, the antenna package 300c may include a number of chips including a NFC antenna, a winding structure including a coil 146c having the first winding direction in the chip of the number, All of the winding structures including the coil 146c may be provided. In the case of having such a winding structure, near field communication can be realized even if an arbitrary angle is formed between the NFC reader and the battery bare cell 400 without the wide faces being relatively aligned with each other, and the sensitivity of the near field communication An improvement effect can be expected.

On the other hand, the structure of the wing wire constituting the NFC antenna structure 140 is exemplified by a winding structure in which a coil is wound around the core. However, the NFC antenna structure 140 according to the technical idea of the present invention is not limited to such a winding structure, and may be realized, for example, by patterning a conductive material.

According to some embodiments of the present invention, the second substrate 72 may be made of only a lead frame, not a printed circuit board. In this case, the NFC antenna structure 140 may be mounted using surface mounting techniques on at least a portion of the surface of the lead frame that is the second substrate 72. Further, it is possible to further include an electrical connecting member for electrically connecting any two selected from the group consisting of the NFC antenna structure 140 and the plurality of leads 72-1, 72-2, 72-3, and 72-4 , The antenna package 300c can be configured without using a separate printed circuit board. The electrical connecting member may include a bonding wire or a bonding ribbon.

The length of the second substrate 72 in the antenna package 300c having the above-described structure is set such that the lead frame is spaced from the center of the upper surface of the battery bare cell 400 (e.g., the negative terminal 410) And may be arranged on the other side. For example, the length of the antenna package 300c including the NFC antenna structure 140 may be approximately half the total length of the cap plate 430. [

8A is a diagram illustrating a portion of a battery pack in accordance with some embodiments of the present invention. 8B is an enlarged view of the antenna package 300c among the structures shown in FIG. 8A, and FIG. 8C is an enlarged view of the battery protection circuit package 300b among the structures shown in FIG. 8A. FIG. 8D is an enlarged view of the E region in the structure shown in FIG. 8A. FIG.

8A to 8D, a conductive connection portion 670 for electrically connecting the battery protection circuit package 300b and the antenna package 300c is disclosed. The battery protection circuit package 300b includes a first pad 50-7 and a second pad 50-2 which are sequentially exposed in the direction away from the center of the upper surface of the battery bare cell 400, do. The antenna package 300c includes a third pad 72-4 and a fourth pad 72-2 which are sequentially exposed in the direction away from the center of the upper surface of the battery bare cell 400 and exposed to the outside. The conductive connection portion 670 is disposed on the upper surface of the battery bare cell 400 so as to connect the first pad 50-7 of the battery protection circuit package 300b and the third pad 72-4 of the antenna package 300c. Gt; 664 < / RTI > The conductive connection portion 670 is formed on the side surface of the battery bare cell 400 so as to connect the second pad 50-2 of the battery protection circuit package 300b and the fourth pad 72-2 of the antenna package 300c. And a second conductive connection portion 662 arranged to connect the lower surface of the first conductive connection portion 662.

According to this, the conductive connection portion 670 may include a shape covering at least a part of the periphery of the battery bare cell 400. Specifically, when the side surface of the battery bare cell 400 is composed of a wide surface (a surface perpendicular to the x axis) and a narrow surface (a surface perpendicular to the y axis), the conductive connection portion 670 contacts the battery bare cell 400, And the bottom surface of the battery protection circuit package 300b may be connected to the narrow side of the side surface.

Since the conductive connection portion 670 electrically connecting the battery protection circuit package 300b and the antenna package 300c has a shape which surrounds the battery bare cell 400, It can be used as an antenna. In particular, since the second conductive connection portion 662 is disposed so as to connect the narrower and lower surfaces of the side surfaces of the battery bare cell 400, the direction of the generated magnetic field is a direction perpendicular to the wide surface of the battery bare cell 400 (in a direction parallel to the x-axis).

The first pad 50-7, the second pad 50-2, the third pad 72-4, and the fourth pad 72-2 may not protrude from the sealing material. In this case, A connecting pad may be further disposed to facilitate electrical contact with the conductive connection 670.

For example, the first connecting pad 650a is disposed at a position corresponding to the first pad 50-7, the second connecting pad 650a is disposed at a corresponding position in contact with the second pad 50-2, The third connecting pad 652b is disposed at the corresponding position in contact with the third pad 72-4 and the fourth connecting pad 652b is disposed at the corresponding position in contact with the fourth pad 72-2, A pad 652a may be disposed.

The first conductive connecting portion 664 may be interposed to be electrically connected between the first connecting pad 650a and the third connecting pad 652b and the second conductive connecting portion 662 may be interposed between the first connecting pad 650a and the third connecting pad 652b, And may be interposed between the fourth connecting pad 650b and the fourth connecting pad 652a so as to be electrically connected. Particularly, since the external connection terminals P +, CF, NFC1, and P- disposed between the first pad 50-7 and the second pad 50-2 are exposed to the outside, the second connecting pad 650b And the fourth connecting pad 652a can not be disposed across the upper center portion of the battery bare cell 400 (for example, the negative terminal 410) Side and bottom surfaces of the cell 400 are connected to each other.

Referring to FIG. 8A in comparison with FIG. 2 and FIG. 3, the NFC antenna 470 of FIG. 2 corresponds to the NFC antenna structure of the antenna package 300c of FIG. 8A, And 474 correspond to the third pad 72-4 and the fourth pad 72-2 of FIG. 8A and the package terminals 60-1 and 60-2 of FIG. 3 correspond to the first pad 50-7 and the second pad 50-2. 2 and 3, the battery protection circuit package 300a and the NFC antenna 470 are electrically connected by the direct connection of the end portions 472 and 474 of the NFC antenna and the package terminals 60-1 and 60-2 The battery protection circuit package 300b and the antenna package 300c are electrically connected through the first conductive connection portion 664 and the second conductive connection portion 662 in FIG.

9A is a diagram illustrating a configuration of a conductive connection portion and a connecting pad in a battery pack according to some embodiments of the present invention.

9A, a first conductive connecting portion 664 connecting the first connecting pad 650a and the third connecting pad 652b and a second conductive connecting portion 664 connecting the second connecting pad 650b and the fourth connecting pad 652a Each of the second conductive connection portions 662 is composed of at least one conductive line. For example, the first conductive connection 664 and the second conductive connection 662 may be provided with three conductive lines arranged in parallel in parallel.

Since the conductive connection portion 670 electrically connecting the battery protection circuit package 300b and the antenna package 300c has a shape that surrounds the battery bare cell 400, it is utilized as an additional antenna having a rectangular loop shape in the near field communication . In this case, the number of conductive lines connected in parallel constituting the conductive connection portion 670 may be understood as the number of turns of the induction coil constituting the additional antenna.

9B is a diagram illustrating a configuration of a conductive connection portion and a connecting pad in a battery pack according to some other embodiments of the present invention.

9B, a first conductive connecting portion 664 connecting the first connecting pad 650a and the third connecting pad 652b and a second conductive connecting portion 664 connecting the second connecting pad 650b and the fourth connecting pad 652a Each of the second conductive connection portions 662 may be formed of a conductive foil.

In a battery pack according to another modified embodiment of the present invention, the configurations of the conductive connection portions of FIGS. 9A and 9B may be mixed. For example, the first conductive connecting portion connecting the first connecting pad 650a and the third connecting pad 652b may be formed of any one of the conductive line and the conductive foil, and the second connecting pad 650b and the fourth The second conductive connection portion connecting the connecting pad 652a may be formed of any one of the conductive line and the conductive foil.

FIG. 10A is a perspective view illustrating a case constituting a battery pack according to some embodiments of the present invention, and FIG. 10B is a perspective view illustrating a portion of the case disclosed in FIG. 10A. 10C is a perspective view illustrating a battery pack according to some embodiments of the present invention.

10A to 10C, a battery pack 700b according to some embodiments of the present invention includes a case 600 formed so as to enclose a narrow side, an upper side, and a lower side of a side surface of the battery bare cell 400 . Further, the case 600 is fixed on the battery bare cell 400 with the battery protection circuit package 300b and the antenna package 300c interposed therebetween, and the external connection terminal of the battery protection circuit package 300b, Hole 670. [

The case 600 is formed to enclose the narrow side, the upper surface, and the lower surface of the side surface of the battery bare cell 400 to protect the conductive connection portion 670 from the outside. Specifically, the case 600 includes a first case 610 disposed on the upper surface of the battery bare cell 400, second cases 620 and 640 disposed on the narrow surface of the battery bare cell 400, And a third case 630 disposed on the lower surface of the bare cell 400. The first case 610, the second cases 620 and 640, and the third case 630 are distinguished from each other for convenience and can be formed integrally with each other.

According to some embodiments of the present invention, the above-described conductive connection portion 670 may be embedded inside the case 600. [ For example, at least a portion of the battery protection circuit package 300b disposed on the battery bare cell 400, at least a portion of the antenna package 300c, and the conductive connection portion 670, A battery protection circuit package 300b, and an antenna package 300c by inserting the resin melt and injecting the resin melt into the battery case 400, The case 600 can be formed.

In another modified embodiment of the present invention, after the injection case 600 shown in FIG. 10A, in which the conductive connection portion 670 is embedded and the connecting pad is exposed, is separately prepared, The battery pack 700b shown in FIG. 10C may be realized by being coupled with the structure disclosed in FIG. 10C in an insert manner. In this case, the injection case 600 is detachable from the structure disclosed in Fig.

Referring to FIG. 10B, the inside of the first case 610 disposed on the upper surface of the battery bare cell 400 is shown. The first case 610 includes a battery protection circuit package 300b and an inner space 690 through which the antenna package 300c can be disposed inside. A part of the conductive connecting portion 670 is embedded in the first case 610 and the first connecting pad 650a, the second connecting pad 650b, the third connecting pad 652b and the fourth connecting pad 652a May be configured to be exposed to the inside of the first case 610.

The battery pack including the NFC antenna structure has been described so far. According to the present invention, the antenna soldering process can be eliminated, thereby simplifying the process and increasing the product yield. In addition, the NFC antenna pad is removed from the battery protection circuit package, thereby ensuring the internal space and reducing the package size. Further, the advantageous effect that the performance of the NFC chip antenna can be improved by using the conductive connection portion as an antenna by being built in the case can be expected.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

10: Battery protection circuit
140: NFC antenna structure
300a, 300b: battery protection circuit package
300c: antenna package
400: battery bare cell
410: negative terminal
430: cap plate
600: Case
700a, 700b: battery pack
NFC1: NFC external connection terminal
PD1, PD2: NFC connection terminal

Claims (10)

Battery bare cell;
A battery protection circuit package disposed on one side of the upper surface of the battery bare cell and including a first substrate and a protection IC disposed on the first substrate, a field effect transistor (FET), and at least one passive element;
An antenna package disposed on the other side of the upper surface of the battery bare cell and including a second substrate and an NFC antenna structure disposed on the second substrate;
A conductive connection portion electrically connecting the battery protection circuit package and the antenna package; And
And a through hole formed through the battery protection circuit package and the antenna package on the battery bare cell to expose the external connection terminal of the battery protection circuit package.
And a battery pack. The method according to claim 1,
Wherein the battery protection circuit package and the antenna package are spaced apart from each other with respect to a negative terminal of the battery bare cell,
Wherein at least a portion of the battery protection circuit package and at least a portion of the antenna package are fixedly connected to an upper surface of the battery bare cell,
Battery pack. The method according to claim 1,
Wherein the conductive connection comprises at least a portion of the periphery of the battery bare cell. The method of claim 3,
In the case where the side surface of the battery bare cell is configured to have a narrower surface than a wide surface,
Wherein the conductive connection portion connects the narrow side of the side surface of the battery bare cell and the bottom surface of the battery bare cell. The method of claim 3,
And at least a part of the conductive connection portion is embedded inside the case. The method according to claim 1,
Wherein the battery protection circuit package includes a first pad and a second pad sequentially exposed in a direction away from the center of the upper surface of the battery bare cell, 1 < / RTI > pad and the second pad,
Wherein the antenna package includes a third pad and a fourth pad that are sequentially exposed in a direction away from the center of the upper surface of the battery bare cell,
The conductive connection portion includes: a first conductive connection portion disposed on the upper surface of the battery bare cell to connect the first pad and the third pad; And a second conductive connection portion arranged to surround a side surface and a bottom surface of the battery bare cell to connect the second pad and the fourth pad.
Battery pack. The method according to claim 6,
And the case is configured to surround a part of a side surface and an upper surface and a lower surface of the battery bare cell so as to protect the first conductive connection portion and the second conductive connection portion from the outside. The method according to claim 6,
Wherein the first conductive connecting portion and the second conductive connecting portion are embedded inside the case. The method according to claim 6,
Wherein the first conductive connection portion and the second conductive connection portion are a conductive line or a conductive foil. The method according to claim 1,
In this case,
At least a portion of the battery protection circuit package disposed on the battery bare cell, the battery bare cell, at least a part of the antenna package, and the conductive connection portion are disposed inside the injection mold, and the resin melt is injected and insert injection molded A battery protection circuit package, and an antenna package, the battery protection cell package comprising:
Battery pack.

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