KR20160129498A - belt having flexible battery - Google Patents

Abstract

Provided is a belt embedding a flexible battery. According to an embodiment of the present invention, the belt embedding a flexible battery comprises: a belt part in a shape of a long band; a flexible battery which is embedded in the belt part and can be charged or discharge electricity; and a charging unit which supplies the power of the flexible battery to a battery of a portable terminal in order to charge the battery of the portable terminal. According to the present invention, the belt embedding a flexible battery performs the specific function of a belt, and can charge a portable terminal via the flexible battery embedded in the belt. Accordingly, a user can charge a portable terminal regardless of place so the usable time of the portable terminal can be increased. The power of the flexible battery embedded in the belt can be supplied to a portable terminal via wire and wireless communication means so the belt can be used regardless of the type of a portable terminal. The flexible battery has a pattern formed in order to contract and loosen the flexible battery. Accordingly, even when the belt made of a soft material is deformed, a user can easily cope with the deformation of the belt so the flexible battery embedded in the belt can be prevented from being damaged.

Description

A belt having a flexible battery {belt having flexible battery}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a belt having a flexible battery, and more particularly to a belt having a thin flexible battery capable of emergency charging a battery of a portable terminal such as a mobile phone or a wearable device such as a smart watch.

Background of the Invention [0002] Today, as the size of a portable terminal is reduced and slimmer, the capacity of a battery built in the portable terminal itself is limited. For example, the smartphone, which is a kind of the portable terminal, can perform various additional functions such as search, finance, and movie playback in addition to the basic call function.

Accordingly, the frequency of use and the usage time of the user are gradually increasing, and the required power used in the process of performing various functions is inevitably increased.

Due to this, the battery of the smartphone itself is often unable to exceed one day due to the capacity limit, and it is required to replace the battery at least once a day or to continuously charge the battery through the charging cable.

In particular, since a smart phone of recent years is manufactured as a battery-integrated type (built-in type) in which a battery can not be replaced, it is common to purchase and carry a charging auxiliary battery of various shapes instead of a replacement battery.

However, the charging through the charging cable may not be possible depending on the surrounding environment, and the conventional charging auxiliary battery has a problem that it is inconvenient to carry.

This is true also in the case of portable terminals such as tablets and PMPs.

Therefore, there is an urgent need for a method of easily charging the main battery of the portable terminal regardless of the place.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a flexible, thin flexible battery for emergency charging in a belt, The present invention provides a belt having a flexible battery which can improve the convenience of use of the portable terminal, such as extending the use time of the portable terminal by charging the main battery of the portable terminal anytime and anywhere without carrying it. have.

In addition, the present invention provides a belt having a flexible battery that can be used regardless of the type of portable terminal because the power of the flexible battery built in the belt can be supplied to the portable terminal through a wired or wireless system. .

In addition, the present invention can embed a flexible battery without increasing the thickness of a conventional belt by incorporating a thin flexible battery, and a pattern for shrinkage and relaxation is provided in a flexible battery, Another object of the present invention is to provide a belt having a flexible battery that can flexibly cope with deformation even when the flexible battery is damaged, thereby preventing damage to the built-in flexible battery.

In order to solve the above-described problems, the present invention provides a belt comprising: a long belt-shaped belt; A flexible battery capable of being charged and discharged in the belt portion; And a charging unit for supplying the power of the flexible battery to the battery of the portable terminal to charge the battery of the portable terminal.

The belt portion may be a waist belt, a suspenders belt, or a belt of a bag.

The flexible battery includes: an electrode assembly including an anode, a cathode, and a separator; And a casing for encapsulating the electrode assembly together with the electrolyte, wherein the casing and the electrode assembly are provided with patterns for shrinking and relaxing at the time of bending, and the patterns of the casing and the electrode assembly are formed to have mutually coincident patterns .

Also, the flexible battery may have a pattern for shrinking and relaxing partly or wholly along the longitudinal direction.

The charging unit may include a circuit unit electrically connected to the flexible battery and converting the power supplied from the flexible battery into a wireless charging AC power source or converting the supplied power into a wired charging voltage.

In addition, at least one switch electrically connected to the circuit unit is provided, and when the user operates the switch, the electrical connection of the circuit unit is controlled so that the wired charging mode, the wireless charging mode, and the non-charging mode can be switched.

In addition, it is preferable that a binding means for binding or releasing both ends of the belt portion is provided, and at either side of the belt portion or the binding means, a connection terminal electrically connected to the circuit portion and to which an end of a cable for charging the portable terminal is connected May be provided.

Also, the connection terminal may be a USB port type.

In addition, the belt unit may be provided with fixing means for fixing the portable terminal.

The belt unit may include at least one antenna unit for generating a magnetic field for wireless charging so as to wirelessly transmit the power of the flexible battery to the portable terminal.

In addition, a shielding sheet for inducing a magnetic field generated during wireless charging may be disposed on one surface of the antenna unit.

Further, the shielding sheet may be a ribbon sheet of an amorphous alloy or a ribbon sheet of a nano-crystal alloy.

Further, the shielding sheet may be divided into a plurality of fine pieces.

The flexible battery includes: an electrode assembly including an anode, a cathode, and a separator; And an outer casing that encapsulates the electrode assembly together with the electrolyte solution.

The electrode assembly may further include a cathode on which a cathode active material layer is disposed on one surface or both surfaces of the cathode current collector and a cathode and a separator on which an anode active material layer is disposed on one or both surfaces of the anode current collector, May be provided with the same pattern as that of the exterior material for shrinking and relaxing during bending.

The separation membrane may further include a nonwoven fabric layer; And a nanofiber web layer containing polyacrylonitrile nanofibers laminated on one or both surfaces of the nonwoven fabric layer.

According to the present invention, since the battery of the portable terminal can be charged through the built-in flexible battery while performing the function inherent to the belt, it is possible to charge the battery of the portable terminal without being restricted by the location, Can increase.

In addition, since the power of the built-in flexible battery can be supplied to the portable terminal through the wired or wireless system, the present invention can be used regardless of the type of portable terminal.

Further, according to the present invention, since a pattern for shrinkage and relaxation is provided in a flexible battery, it is possible to flexibly cope with deformation even when deformation of a belt made of a soft material occurs, thereby preventing breakage of the built-in flexible battery.

1 is a perspective view showing a case where a belt having a flexible battery is embodied as a waistband according to an embodiment of the present invention;
Fig. 2 is a partial sectional view of Fig. 1,
FIG. 3 is a schematic view showing a configuration for use in a wireless charging system in a belt having a flexible battery according to the present invention,
4 is a cross-sectional view showing a detailed configuration of a shielding sheet applied to a belt having a flexible battery according to the present invention,
FIG. 5 is a state diagram illustrating a state in which a portable terminal is charged using a belt having a flexible battery according to an exemplary embodiment of the present invention.
FIG. 6 illustrates another type of binding means when a belt having a flexible battery according to an embodiment of the present invention is embodied as a waistband. FIG.
7 is a view showing a flexible battery applied to a belt having a flexible battery according to the present invention,
8 is a schematic view showing various forms of patterns formed on the casing and the electrode assembly in the flexible battery according to the present invention,
FIGS. 9 to 12 are schematic views showing various shapes of patterns in a flexible battery according to the present invention, and FIGS.
13 is an enlarged cross-sectional view showing a detailed configuration of a flexible battery according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same reference numerals are assigned to the same or similar components throughout the specification.

A belt 100 having a flexible battery according to an embodiment of the present invention includes a belt unit 110, a flexible battery 120, and a charging unit 130.

The belt 110 is formed in a long strip shape and is made of a soft material such as leather or fabric. The belt 110 is formed in a shape in which a pair of outer sheaths 111 are stitched together or bonded together with an adhesive. At this time, the pair of outer sheaths 111 may be formed of separate members, or may be provided in a form of a single cylinder and folded in half along the longitudinal direction.

The belt 110 may be a belt constituting a waistband to be worn on the user's waist or a suspenders to prevent the clothes from flowing down to prevent the wear of the wearer from falling down or to fit the wear of the wearer And may be a belt provided on a backpack, a bag or the like so as to be worn on the user's shoulder. In addition, it may be a belt constituting a tool waistband to be worn for storing various tools necessary for the work.

Hereinafter, for convenience of explanation, the belt 100 having the flexible battery according to the present invention is embodied as a waistband including binding means 160 and 260 for binding or releasing both ends of the belt unit 110 .

Meanwhile, the belt unit 110 supplies power to the portable terminal 10 such as a cellular phone by using a wired or wireless charging system, so that a flexible battery 120, which can charge the battery of the portable terminal 10, do.

That is, in the belt 100 having the flexible battery built-in according to the embodiment of the present invention, the flexible battery 120 capable of charging the battery of the portable terminal 10 such as a mobile phone is built in the belt unit 110 When the portable terminal needs to be charged, the main battery of the portable terminal can be charged using the flexible battery 120.

As described above, the belt 100 having the flexible battery according to the present invention can charge the main battery using the flexible battery 120 built in the belt unit 110 when the portable terminal needs to be charged, It is possible to easily charge the main battery of the portable terminal.

Since the flexible battery 120 is embedded in the belt 110 having a predetermined length, the entire length of the flexible battery 120 can be made longer by the length of the belt 110, so that a flexible battery 120 having a high capacity can be realized. do.

In addition, since the thin flexible battery 120 is embedded in the belt unit 110, a flexible capacity battery of a high capacity is built in, while a sufficient capacity of the portable terminal can be supplied.

Such a flexible battery 120 includes a casing member 121 and an electrode assembly 125 as shown in FIG.

The casing member 121 is made of a plate-like member having a predetermined area and is for protecting the electrode assembly 125 from external force by receiving the electrode assembly 125 and the electrolyte therein.

For this, the casing member 121 includes a pair of first casing members 121a and a second casing member 121b, and the electrolyte solution and the electrode assembly 125 housed therein are sealed with an adhesive agent along the rim, And prevents the electrolyte from leaking to the outside.

7, the outer casing 121 includes a receiving portion 122 for receiving the electrode assembly 125 and the electrolyte therein, 125 and a sealing portion 123 sealed to prevent the electrolyte from leaking to the outside.

In this case 121, the first and second case members 121a and 121b are made up of two members, and then the sealing members 123, which are in contact with each other, may be sealed with an adhesive, It will be noted that the remaining sealing portion 123, which is folded in half along the width or longitudinal direction and then abutted, may be sealed through the adhesive.

At this time, as shown in FIG. 8, the cover member 121 may be provided with a pattern 124 for shrinking and relaxing when bending at least one surface thereof.

The pattern 124 is formed so that the crest portion and the crest portion are repeatedly arranged along the longitudinal direction or the width direction of the casing member 121. [

More specifically, the crests and valleys of the pattern 124 are formed to be parallel to a straight line parallel to the width direction of the exterior material 121 or to be inclined at a predetermined angle with respect to a straight line parallel to the width direction of the exterior material 121 . In addition, the peak and valleys of the pattern 124 may be parallel to the width direction of the casing member 121 or be inclined at a predetermined angle with respect to the width direction of the casing member 121.

In addition, the crests and valleys of the pattern 124 may be provided so that the adjacent crests and valleys have the same spacing, or the spacing between adjacent crests or valleys may be different from each other, Or may be provided in a form in which different intervals are combined.

Accordingly, the flexible battery 120 according to an exemplary embodiment of the present invention facilitates shrinkage and relaxation in the longitudinal direction of the flexible battery 120 through the pattern 124 when bending.

Accordingly, even if repeated banding occurs in the casing member 121, the fatigue applied to the casing member 121 itself can be reduced, and the electrode assembly 125 disposed inside the casing member 121 is also generated during bending Thereby being able to be protected from the load.

The pattern 124 may be formed on the entire surface of the casing member 121 or may be partially formed.

13, the electrode assembly 125 is encapsulated with the electrolytic solution inside the casing member 121, and a separation membrane 127 is disposed between the anode 126 and the cathode 128, And the cathode 128 may be separated from each other by the separator 127.

The anode 126 includes a cathode current collector 126a and a cathode active material 126b and the cathode 128 includes a cathode current collector 128a and a cathode active material 128b, At least one of them may be integrated with the separation membrane 127.

The anode current collector 128a and the cathode current collector 126a are respectively formed with an anode terminal 128c and a cathode terminal 126c extending from the body. The positive electrode terminal 126c and the negative electrode terminal 128c are for electrically connecting the electrode assembly 125 to the connection terminal 131. The positive electrode terminal 126c and the negative electrode terminal 128c of the positive electrode current collector 126a and the negative electrode current collector 128a It extends a certain length from the body.

A circuit part of a charging unit 130, which will be described later, is disposed between the positive terminal 126c and the negative terminal 128c and the connection terminal 131. Thus, the amount of charge of the flexible battery 120 during charging of the portable terminal, So that charge can flow from the flexible battery 120 to the battery side of the portable terminal through the connection terminal 131 until the charge amount of the portable terminal becomes the same.

Meanwhile, the separation membrane 127 may include a nonwoven fabric layer 127a and a nanofiber web layer 127b laminated on one or both surfaces of the nonwoven fabric layer 127a.

The nanofiber web layer 127b may be a nanofiber containing at least one selected from the group consisting of polyacrylonitrile nanofiber and polyvinylidene fluoride nanofiber.

Preferably, it may be composed of only polyacrylonitrile nanofibers to ensure the formation of radioactive and uniform pores in the formation of the nanofiber web layer 127b. The polyacrylonitrile nanofibers of the nanofiber web layer 127b may have an average diameter of 0.1 to 2 mu m, preferably 0.1 to 1.0 mu m.

This is because if the average diameter of the nanofibers is less than 0.1 탆, the separation membrane may not have sufficient heat resistance. If the average diameter exceeds 2 탆, the mechanical strength of the separation membrane is excellent, but the elasticity of the separation membrane may be reduced .

In addition, the nonwoven fabric constituting the nonwoven fabric layer 127a may be formed of a material selected from the group consisting of cellulose, cellulose acetate, polyvinyl alcohol (PVA), polysulfone, polyimide, polyetherimide, polyamide, polyethylene oxide (PEO), polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), polyurethane (PU), polymethyl methacrylate (PMMA), poly (methylmethacrylate), and polyacrylonitrile.

The nonwoven fabric layer may further include inorganic additives such as SiO, SnO, SnO ₂ , PbO ₂ , ZnO, P ₂ O ₅ , CuO, MoO, V ₂ O ₅ , B ₂ O ₃ , Si ₃ N ₄ , CeO ₂ , Mn ₃ O ₄ , Sn ₂ P ₂ O ₇ , Sn ₂ B ₂ O ₅ , Sn ₂ BPO ₆ , TiO ₂ , BaTiO ₃ , Li ₂ O, LiF, LiOH, Li ₃ N, It may include _{BaO, Na 2 O, Li 2} CO 3, CaCO 3, LiAlO 2, SiO 2, Al 2 O 3 and at least one selected from PTFE.

The inorganic particles as the inorganic additive may have an average particle diameter of 10 to 50 nm, preferably 10 to 30 nm, and more preferably 10 to 20 nm.

In addition, the average thickness of the separation membrane may be 10 to 121 탆, and preferably 10 to 50 탆.

If the average thickness of the separator is less than 10 탆, the separator may be too thin to ensure long-term durability of the separator due to repeated bending and / or spreading of the battery. If the average thickness exceeds 121 탆, It is preferable to have an average thickness within the above range.

The nonwoven fabric layer may have an average thickness of 10 to 30 탆, preferably 15 to 30 탆, and the nanofiber web layer may have an average thickness of 1 to 5 탆.

The positive electrode collector and / or the negative electrode collector may be formed of a thin metal foil and may be formed in a strip shape having a predetermined length, and may be formed of copper, aluminum, stainless steel, nickel, titanium, chromium, manganese, iron, cobalt, zinc, Molybdenum, tungsten, silver, gold, and combinations thereof.

The positive electrode active material includes a positive electrode active material capable of reversibly intercalating and deintercalating lithium ions. Typical examples of the positive electrode active material include LiCoO2, LiNiO2, LiMnO2, LiMn2O4, or LiNi1-x-yCoxMyO2 x? 1, 0? y? 1, 0? x + y? 1, and M is a metal such as Al, Sr, Mg, or La). However, in the present invention, it is of course possible to use other kinds of cathode active materials in addition to the cathode active material.

The negative electrode active material 128b includes a negative electrode active material capable of intercalating and deintercalating lithium ions. The negative electrode active material 128b may be a carbon, carbon fiber, or carbon composite of a crystalline or amorphous carbon, Based anode active material, tin oxide, lithiated lithium, lithium, lithium alloy, and mixtures thereof. However, the present invention is not limited to the kind of the negative electrode active material.

The positive electrode active material 126b and the negative electrode active material 128b are made of PTFE (Polytetrafluoroethylene) to prevent peeling from the positive electrode current collector 126a or the negative electrode current collector 128a and to prevent cracking of the positive electrode active material layer and the negative electrode active material layer, ≪ / RTI >

The electrode assembly 125 may be provided in the form of a flexible plate, but may be formed in the same pattern as the pattern 124 formed on the casing 121 for shrinking and relaxing during bending, .

That is, the positive electrode 126, the negative electrode 128, and the separator 127, which constitute the electrode assembly 125, have the same pattern 129 as the pattern 124 formed on the casing 121 for shrinking and relaxing during bending May be provided.

The pattern 129 formed on the electrode assembly 125 may be formed parallel to a straight line parallel to the width direction as in the case of the pattern 124 formed on the case member 121 or may be formed on a straight line parallel to the width direction (See Fig. 8). In addition, although not shown, the pattern 129 may be formed parallel to the width direction. It is noted that the pattern 124 formed on the casing member 121 and the pattern 129 formed on the electrode assembly 125 need only be matched with each other.

9 to 12, the crests and valleys may be continuous or discontinuous, and the cross-sectional shapes of the crests and valleys may be a straight line pattern, a prism pattern, a semicircular pattern, a wave pattern , A polygonal pattern, and a mixed pattern thereof.

Accordingly, even if the belt part 110 made of a soft material is bent or bent in the course of carrying or using, the flexible battery 120 built in the belt part 110 is also made to pass through the patterns 124 and 129 for contraction and relaxation The flexible battery 120 can be bent or bent in the same manner as the belt 110, thereby preventing the embedded flexible battery 120 from being damaged or broken by repetitive banding.

The charging unit 130 supplies the power of the flexible battery 120 to the battery of the portable terminal to charge the battery of the portable terminal.

The charging unit 130 supplies the power of the flexible battery 120 built in the belt 110 to the battery of the portable terminal in a wired or wireless manner so that the battery of the portable terminal can be charged.

The charging unit 130 may be provided at one end of the belt unit 110 or may be provided at binding units 160 and 260 to be described later. However, it should be noted that the position of the charging unit 130 is not limited thereto, and the position where the convenience of the user can be improved can be appropriately changed.

1 to 3, the charging unit 130 includes a circuit unit for converting a power supplied from the flexible battery 120 into a wireless charging AC power or converting it into a wired charging voltage .

Here, the circuit unit may be provided in the form of a circuit board on which a wire charging circuit and / or a wireless charging circuit is mounted. The circuit unit may transmit power supplied from the outside to the flexible battery 120 to recharge the flexible battery 120 May be included. In addition, the circuit unit may further include a protection circuit for preventing overcharge during charging of the flexible battery 120 or the portable terminal.

In such a circuit unit, the circuit board is electrically connected to the flexible battery 120 built in the belt unit 110 to convert the power supplied from the flexible battery 120 into a wired charging voltage through a wired charging circuit , The DC power supplied from the flexible battery 120 is converted into the AC power for wireless charging so that a magnetic field can be generated through the wireless charging circuit, and the converted AC power is applied to the antenna unit 140 to be described later.

Here, the circuit unit may include a converter (not shown) for lowering the output voltage provided from the flexible battery 120 to a voltage suitable for wire charging and then sending the lowered voltage to the mobile terminal 10 as a charging target , And various circuits for increasing the charging efficiency during wireless charging.

Meanwhile, the charging unit 130 may include a connection terminal 131 exposed to one side of the belt unit 110 so that a charging cable can be connected to the charging unit 130 during wire charging. Here, the connection terminal 131 is electrically connected to the circuit unit. The connection terminal 131 may be provided as a USB port type.

At this time, the connection terminal 131 may serve as a passageway for charging the portable terminal by transmitting the power supplied from the flexible battery 120 to the portable terminal, or may be connected to the flexible battery 120 So as to serve as a passage for recharging the flexible battery 120.

The charging unit 130 may include at least one switch 132 that can switch the state of the circuitry in a wired charging mode, a wireless charging mode, and a non-charging mode.

Here, although the switch 132 is shown as being provided in a slide manner, the present invention is not limited thereto, and various known methods capable of performing an operation of changing a state through a button system or a rotation system can be used Leave.

Accordingly, the user can charge the battery of the portable terminal by the wired charging method or the battery of the portable terminal through the wireless charging method by selecting the wired charging method or the wireless charging method through the operation of the switch 132 It becomes possible.

In addition, when the charging of the portable terminal 10 is unnecessary, the non-charging mode is performed through the operation of the switch 132 to perform a typical belt-specific function. Here, the non-charging mode may include a state of charging the flexible battery 120 through a power source supplied from the outside when the charging cable is connected to the connection terminal 131 side.

The charging unit 130 may be provided at one end of the belt unit 110 or may be provided at binding units 160 and 260 to be described later. However, it should be noted that the position of the charging unit 130 is not limited thereto, and the position where the convenience of the user can be improved can be appropriately changed.

FIG. 5 shows a wired charging method and a wireless charging method of the portable terminal through the operation of the switch 132.

That is, as shown in FIG. 5A, the user operates the switch 132 to switch to the wired charging mode and connects the connection terminal 131 and the portable terminal 10 to each other through the charging cable. Accordingly, the power of the flexible battery 120 is supplied to the portable terminal through the charging cable, so that the battery of the portable terminal 10 can be charged by the wired charging method.

At this time, power is supplied from the flexible battery 120 in a state where the portable terminal 10 is housed together with a bag or a bag while the connection terminal 131 and the portable terminal 10 are connected through the charging cable The battery of the portable terminal 10 can be easily charged.

5B, the user operates the switch 132 to switch to the wireless charging mode so that the power of the flexible battery 120 is supplied to the portable terminal 10 via the antenna unit 140 in a wireless charging manner So that the battery of the portable terminal can be charged.

To this end, the belt unit 110 and the antenna unit 140 are embedded in the belts 100 and 100 'with the flexible battery according to the present invention, so that the battery of the portable terminal can be charged by the wireless charging method.

The antenna unit 140 transmits a radio frequency signal to the receiving antenna unit 18 of the portable terminal 10 when the radio power receiving antenna unit 18 is built in the portable terminal 10 to be charged .

The antenna unit 140 may be embedded in the belt unit 110 together with the flexible battery 120 and may be attached to one side of the belt unit 110 through an adhesive layer and then protected by a separate protective film As shown in FIG.

Here, the adhesive layer may be a bond having adhesive properties, PVC, rubber, double-sided tape or the like, and may include a conductive component.

The antenna unit 140 may be formed of a polygonal coil such as a circular, elliptical, spiral or quadrangular shape wound in a clockwise or counterclockwise direction, or may be formed by etching a metal foil such as a copper foil, The printed circuit board 140 may be formed in a printed pattern on the circuit board 142 so as to reduce the overall thickness.

Here, the circuit board 142 is a base material having at least one antenna pattern and various circuit patterns formed on the upper surface thereof. The circuit board 142 is a material having heat resistance and pressure resistance and being flexible. Considering the physical properties of such a material, a film such as PI or PET, which is a thermosetting polymer film, may be employed as the circuit board 142.

In addition, when the antenna unit 140 is formed in a printed pattern on the circuit board 142, the circuit board 142 may be formed integrally with the circuit board constituting the circuit unit, or may be formed as a separate member I will reveal.

For example, when the circuit board 142 constituting the antenna unit 140 and the circuit board constituting the circuit portion are integrally formed, the antenna pattern and the wireless charging circuit and / or the wired charging circuit are formed on one circuit board Pattern printed or mounted.

The antenna unit 140 is electrically connected to the circuit unit through connection terminals extended to both ends.

3, the antenna unit 140 includes a wireless charging antenna 144 for wireless charging. Some of the power stored in the flexible battery 120 is received from the circuit unit, .

That is, the wireless charging antenna 144 receives the current supplied from the flexible battery 120 through the circuit unit in a state where the circuit unit is switched to the wireless charging mode through the operation of the switch 132, To generate a magnetic field.

Accordingly, an induction current is generated in the reception antenna unit 16 of the portable terminal 10, and the battery of the portable terminal 10 is charged through the induction current.

In addition, when the self-resonance method is used, the wireless charging antenna 144 may generate a magnetic field at a specific frequency. The wireless charging technique of the magnetic induction method and the self resonance method is a well-known technology, and a detailed description thereof will be omitted.

Here, the driving power for driving the wireless charging antenna 144 is described as using a part of the power stored in the flexible battery 120, but the present invention is not limited thereto, and only the wireless charging antenna 144 may be driven It is also possible to separately provide a low-capacity driving power source for the belt unit 110. FIG.

In addition, although not shown, the antenna unit 140 may have a plurality of antennas. For example, the antenna unit 140 may include an NFC antenna for short-range communication as well as a wireless charging antenna 144, and may further include an MST antenna.

As described above, the belt 100 with the flexible battery according to the present invention allows the user to select the wired charging method and the wireless charging method through the switch 132, The charging is performed through the wired charging mode when the wireless terminal 18 is not provided and the wired or wireless charging mode is selected by the user when the wireless terminal 18 is provided in the portable terminal 10 .

That is, the belt 100 with the flexible battery according to the present invention can directly charge the main battery of the portable terminal 10 through the flexible battery 120 built in the belt unit 110, And can perform wired charging and wireless charging simultaneously or individually through a single device.

The belt 100 with a flexible battery according to the present invention is provided with a fixing means (not shown) for holding the portable terminal 10 to be fixed to the belt unit 110 during charging, 170 may be provided.

The fixing unit 170 may allow the portable unit 10 to be positioned at a position corresponding to the antenna unit 140 built in the belt unit 110 when the wireless unit is charged, The wireless-re- ceived antenna unit 18 of the portable wireless terminal 10 is maintained in a state in which the wireless-re- ceived antenna unit 18 faces each other.

The fixing unit 170 may be a case that can be fastened to the belt unit 110 while receiving the portable terminal 10 and may be a band type belt unit attached to one surface of the belt unit 110 As shown in FIG.

However, the present invention is not limited to the above-described fixing means 170, and may be provided at a position corresponding to the antenna unit 140 built in the belt unit 110, so that the wireless terminal 10 can be smoothly charged It is not clear if it is fixed.

The antenna unit 140 may include a shielding sheet 150 for generating a magnetic field generated by the antenna unit 140 to increase the efficiency of wireless charging.

As shown in FIG. 3, the shielding sheet 150 may include a plate-like member having a predetermined area. The shielding sheet 150 may be embedded in the belt unit 110, like the antenna unit 140, Or may be attached to one surface of the body 110.

The shielding sheet 150 can be used as long as it includes a magnetic material so as to shield the magnetic field generated by the radio frequency signal. For example, the shielding sheet may be a ferrite sheet, and the ferrite sheet may be composed of a sintered ferrite sheet, and may be composed of MnZn ferrite or NiZn ferrite. Preferably, the ferrite sheet may be made of NiZn sintered ferrite.

More preferably, the shielding sheet 150 is made of a ribbon sheet of an amorphous alloy or a ribbon sheet of a nano-crystal alloy alloy having a relatively high magnetic permeability relative to the ferrite sheet so as to further improve the characteristics of the wireless- Can be used.

Here, the amorphous alloy or the nano-crystal alloy may be an Fe-based or a Co-based magnetic alloy, and it is preferable to use an Fe-based magnetic alloy in consideration of material cost. In addition, the amorphous alloy and the nanocrystalline alloy may include a three-element alloy or a five-element alloy. For example, the three-element alloy may include Fe, Si, and B, B, Cu and Nb.

4, the shielding sheet 150 may include a plurality of amorphous alloy or nanocrystalline alloy ribbon sheets 151, 152, and 153 of two or more layers.

At this time, the shielding sheet 150 may be divided into a plurality of fine pieces so as to suppress the generation of eddy currents during wireless charging, and the plurality of fine pieces may be entirely insulated or partially insulated among neighboring fine pieces. .

At this time, the plurality of fine pieces may be formed to have a size of 1 to 3 mm, and each piece may be irregularly randomized.

In the case where the shielding sheet 150 is formed by separating and forming a plurality of sheet layers into fine pieces, an adhesive layer 154 made of a nonconductive material is disposed between the sheet layers, and a pair of sheet layers The adhesive layer 154 may serve to insulate a plurality of microparts constituting each sheet layer.

Here, the adhesive layer may be formed of an adhesive or may be provided on one side or both sides of a substrate in the form of a film with an adhesive applied thereto.

Meanwhile, in the belt 100 having a flexible battery according to an embodiment of the present invention, the flexible battery 120 may be built in or partially embedded in the entire length of the belt 110.

In addition, a plurality of flexible batteries 120 installed in the belt unit 110 may be provided and connected to each other, or may be formed of a single cylinder.

In this case, the flexible battery 120 may have a pattern for contraction and relaxation in a direction perpendicular to the longitudinal direction of the belt 110.

Accordingly, even if the belt 110 is bent or wound in the course of using or storing the belt 110, the load generated when the belt 110 is shrunk or relaxed can be reduced, .

Here, the pattern may be provided for the entire length of the flexible battery 120, or may be partially provided. It is noted that the pattern may be provided continuously or discontinuously.

In the meantime, when the belt 100, 100 'having the flexible battery according to the present invention is embodied in the form of a waistband, the binding means 160, 260 may be attached to the belt portion 110 110 at both ends.

The binding means 160 and 260 are provided so as to correspond to the opposite end portions of the belt portion 110, respectively.

1, the binding unit 160 includes a plurality of protruding bars 161 protruding at a predetermined depth along a longitudinal direction on one surface of the belt unit 110, And a buckle 162 having a latching bar 162a inserted into a space between adjacent protruding bars 161 when the latching bar 162 is moved.

Here, the protruding bar 161 is protruded from one side of the belt 110, but the present invention is not limited thereto. The protruding bar 161 may be formed as a recess formed on one surface of the belt 110 It is clear that there is a possibility.

6, the binding unit 260 includes a plurality of through holes 261 formed at predetermined intervals in the belt unit 110 and a plurality of through holes 261 formed in the belt unit 110 so as to be inserted into the through holes 261. [ And a buckle 262 having a restraining bar 262a rotatably coupled to an end of the buckle 110.

However, it should be noted that the binding means 160 and 260 are not limited to the above-described manner, and any method can be used as long as the end portion of the belt portion 110 is fixed so that the waist of the user can be kept around . For example, various known methods such as a lever method and a fixing using a corresponding magnet can be applied.

In the meantime, it is shown that the belts 100 and 100 'having the flexible battery according to the embodiment of the present invention are provided with both the connection terminal 131 for the wire charging system and the antenna unit 140 for the wireless charging system However, the present invention is not limited thereto, and it is disclosed that only the connection terminal 131 is provided so that the portable terminal can be charged only with the wired charging method, and the portable terminal can be charged only with the wireless charging method Leave.

In addition, according to the embodiment of the present invention, the belt 100 in which the flexible battery is installed is provided only with the connection terminal 131, so that the portable terminal is charged only by the wire charging method, or only the antenna unit 140 is provided, The switch 132 may be configured to perform an on / off function of switching between a charging mode and a non-charging mode.

The portable terminal may be a portable device such as a mobile phone, a PMP, a DMB, a tablet, and the like.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

10: portable terminal 16: charging cable
100,100 ': Belt with flexible battery
110: Belt portion 111: Sheath
120: Flexible battery
121: Outer material 121a: First outer material
121b: second outer covering member 122:
123: sealing portion 124: pattern
125: electrode assembly 126: anode
126a: positive electrode collector 126b: positive electrode active material
126c: positive electrode terminal 127: separator
127a: nonwoven fabric layer 127b: nanofiber web layer
128: cathode 128a: cathode collector
128b: negative electrode active material 129c: negative electrode terminal
129: pattern 130: charging unit
131: connection terminal 132: switch
140: antenna unit 142: circuit board
144: Wireless charging antenna 150: Shielding sheet
151, 152, 153: ribbon sheet of amorphous alloy or ribbon sheet of nano-crystal alloy
154: adhesive layer 160, 260:
161: protruding bar 162, 262: buckle
162a: Retaining bar 261: Through hole
262a: restraining bar 170: securing means

Claims (16)

A belt-shaped belt section;
A flexible battery capable of being charged and discharged in the belt portion; And
And a charging unit for supplying power of the flexible battery to the battery of the portable terminal to charge the battery of the portable terminal. The method according to claim 1,
Wherein the belt portion is a belt of a waist belt, a suspenders belt or a bag. The method according to claim 1,
The flexible battery includes:
An electrode assembly including an anode, a cathode, and a separator; And
And a casing covering the electrode assembly together with the electrolytic solution,
The outer casing and the electrode assembly are provided with a pattern for shrinking and relaxing when bending,
Wherein the outer casing and the electrode assembly are provided so as to have patterns corresponding to each other. The method according to claim 1,
Wherein the flexible battery is provided with a pattern for shrinking and relaxing partly or wholly along the longitudinal direction. The method according to claim 1,
The charging unit includes:
And a circuit unit electrically connected to the flexible battery and converting the power supplied from the flexible battery into AC power for wireless charging or converting the AC power into a wired charging voltage. 6. The method of claim 5,
Wherein the at least one switch is electrically connected to the circuit unit, and the flexible connection is switched to the wired charging mode, the wireless charging mode, and the non-charging mode by controlling the electrical connection of the circuit unit when the user operates the switch. 6. The method of claim 5,
And binding means for binding or releasing both ends of the belt portion to each other,
And a flexible terminal electrically connected to the circuit unit and having a connection terminal to which an end of a cable for charging the portable terminal is connected. 8. The method of claim 7,
Wherein the connection terminal is a USB port type flexible battery. The method according to claim 1,
Wherein the belt unit includes fixing means for fixing the portable terminal. The method according to claim 1,
And at least one antenna unit for generating a magnetic field for wireless charging so that the belt unit can wirelessly transmit power of the flexible battery to the portable terminal. 11. The method of claim 10,
Wherein a shielding sheet for inducing a magnetic field generated during wireless charging is disposed on one surface of the antenna unit. 12. The method of claim 11,
Wherein the shielding sheet is a ribbon sheet of an amorphous alloy or a ribbon sheet of a nano-crystal alloy. 12. The method of claim 11,
Wherein the shielding sheet is divided into a plurality of micro-pieces. The method according to claim 1,
The flexible battery includes:
An electrode assembly including an anode, a cathode, and a separator; And
And an outer casing that encapsulates the electrode assembly together with the electrolyte. 15. The method of claim 14,
The electrode assembly includes a cathode on which a cathode active material layer is disposed on one surface or both surfaces of a cathode collector, and a cathode and a separator on which an anode active material layer is disposed on one or both surfaces of the anode collector,
Wherein the positive electrode, the negative electrode, and the separator are provided with the same pattern as the pattern of the casing for shrinking and relaxing during bending. 15. The method of claim 14,
Wherein the separation membrane comprises a nonwoven fabric layer; And a nanofiber web layer containing polyacrylonitrile nanofibers laminated on one or both sides of the nonwoven fabric layer.

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