KR20160135416A - Auxiliary battery having a business card function - Google Patents

Abstract

A business card type auxiliary battery is provided. According to an embodiment of the present invention, a business card type auxiliary battery comprises: a cover member on which information is printed on an outside; a flexible battery provided in the cover member; and a terminal port provided at one side of the cover member to be electrically connected to the flexible battery and connected to an external device.

Description

[0001] The present invention relates to an auxiliary battery for a business card,

The present invention relates to an auxiliary battery, and more particularly, to a business card type auxiliary battery capable of emergency charging when a battery of a portable device such as a portable electronic device or a smart watch is discharged by realizing a size of a business card.

In general, a smartphone terminal is a multimedia integrated device, which is indispensable to modern people. Unlike a conventional mobile phone terminal, a smart phone terminal is intended to perform various functions such as internet, application, TV, navigation, and SNS.

In such a smartphone terminal, a built-in battery which can not be replaced or a basic battery which can be replaced is disposed. Recently, various technologies for increasing the battery usage of the terminal have been developed as the power consumption of the terminal increases.

A secondary battery is produced and sold as a way to overcome the limitation of the battery capacity of the terminal. When the user purchases the secondary battery and separately charges the secondary battery, when the terminal battery is discharged, the secondary battery is separated A method of charging the basic battery of the terminal is used.

However, in the case of the auxiliary battery according to the related art, the user has to carry the auxiliary battery separately from the terminal.

In addition, since the auxiliary battery according to the related art is large in size, it is not easy to carry it separately.

Korea Open Patent No. 2012-0136146 (public date December 18, 2012)

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a business card type auxiliary battery capable of emergency charging a battery of a wearable device such as a portable electronic device or a smart watch, The purpose is to provide.

It is another object of the present invention to provide a business card type auxiliary battery which can be easily carried in a purse or the like since the size of the auxiliary battery can be reduced to a business card size.

According to an aspect of the present invention, there is provided a display device comprising: a cover member on which information is printed; A flexible battery provided in the cover member; And a terminal port provided on one side of the cover member, the terminal port being electrically connected to the flexible battery and connected to an external device.

The cover member may include upper and lower surfaces, and the flexible battery may be interposed between the upper surface and the lower surface.

Further, the terminal port may be coupled to be slidable outwardly between the upper surface and the lower surface of the cover member.

In addition, a sliding portion for sliding the terminal port outwardly from the inside of the cover member may be provided outside the cover member.

Further, the terminal port may be hinged so as to be pivotable from one side of the business card member to the outside direction.

In addition, a seating groove on which the terminal port is seated may be formed on the outer surface of the cover member.

Further, the cover member may be made of a flexible material.

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.

In addition, the outer casing and the electrode assembly are provided with patterns for shrinking and relaxing when bending, and the outer casing and the electrode assembly may have patterns corresponding to each other.

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, it is possible to charge a battery of a wearable device such as a portable electronic device or a smart watch in an emergency while implementing the auxiliary battery in the size of a business card and printing the personal information on the surface, .

In addition, since the size of the auxiliary battery can be reduced to the size of a business card, it can be easily carried in a purse or the like.

1 is a perspective view illustrating a business card type auxiliary battery according to an embodiment of the present invention,
Fig. 2 is an exploded perspective view of Fig. 1,
FIG. 3 is a plan view showing an example of a connection method of a terminal port in a business card type auxiliary battery according to an embodiment of the present invention;
4A and 4B are sectional views taken along the line A-A 'of FIG. 3, illustrating the state of use when the terminal port is coupled to the cover member in a sliding manner,
5A and 5B are plan views showing another example of a connection method of a terminal port in a card type auxiliary battery according to an embodiment of the present invention;
6 is a cross-sectional view taken along line B-B 'of FIG. 5A, illustrating a state in which a terminal port is hingedly coupled to a cover member.
7 is a view showing a flexible battery applied to a business card type auxiliary battery according to an embodiment of the present invention,
FIG. 8 is an enlarged cross-sectional view showing a detailed configuration of a flexible battery applied to a business card type auxiliary battery according to an embodiment of the present invention,
FIG. 9 is a schematic view showing various patterns formed in an electrode assembly and a casing in a flexible battery applied to a business card type auxiliary battery according to an embodiment of the present invention, and FIG.
10 to 13 are schematic views showing various forms of patterns in a flexible battery applied to a business card type auxiliary battery according to 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 or similar components are denoted by the same reference numerals throughout the specification.

1 and 2, the card-type auxiliary battery 100 of the present invention may include a flexible battery 110, a cover member 120, and a terminal port 130.

The size of the flexible battery 110 may be determined according to the size of the cover member 120, and more specifically, the size of the flexible battery 110 may be determined according to the size of the cover member 120. More specifically, The flexible battery 110 may be slightly smaller than the size of the cover member 120.

In addition, an anode terminal (28a in FIG. 7) and a positive terminal (28b in FIG. 7) connected to the terminal port 130 may be provided at one end of the flexible battery 110.

The flexible battery 110 having the above-described configuration will be described later.

2, the cover member 120 may be provided to surround the outer surface of the flexible battery 110.

Specifically, the cover member 120 may include an upper surface 121 and a lower surface 122, and the flexible battery 130 may be interposed between the upper surface 121 and the lower surface 122.

At this time, the cover member 120 may be made of a flexible material, such as silicon, urethane or the like, or may be formed by coating a film on the upper and lower sides of the flexible battery 110.

In addition, for example, the personal information of the user can be printed on at least one of the upper surface or the lower surface of the flexible material such as the above-mentioned silicone urethane or film. At this time, the information that can be printed on the cover member is not limited to the kind of the information such as the company or the phrase for promoting the article, other than the personal information of the user. At this time, in the present embodiment, the personal information of the user is displayed on the upper surface or the lower surface of the cover member by printing, but information can be displayed on the upper surface or the lower surface of the cover member by various other known methods.

The shape of the cover member 120 may be, for example, a rectangle, and the size of the cover member 120 may be a commonly used size of a business card. Specifically, the cover member 120 may have a width of 8 to 10 cm and a length of 4 to 6 cm However, the size and shape of the cover member 120 are not limited to these, and may be various shapes and sizes.

The size of the flexible battery 110 included in the cover member 120 may be determined according to the size of the cover member 120. The size of the flexible battery 110 may be determined by the size of the cover member 120, As shown in FIG.

In addition, the size of the flexible battery 110 may be formed within the cover member 120 according to the capacity.

The terminal port 130 is for electrically connecting an external electronic device to the flexible battery 110 and may be provided inside the cover member 120.

At this time, a terminal 131 for electrically connecting the flexible battery 110 to a terminal of an external electronic device may be provided on one surface of the terminal port 130.

The terminal 131 may be in the form of a USB terminal, or may be formed of various types of known terminals. However, in order to facilitate understanding of the present invention, the terminal portion is described and illustrated in the form of a USB terminal in an embodiment of the present invention.

In addition, the terminal portion in the form of a USB terminal may be formed of a plurality of pins, and the plurality of pins may be formed of pins for power input / output, pins for data transmission and pins for ground, Pin, but the arrangement and the number of pins may be changed according to design conditions.

Also, the terminal port 130 may be slidable as shown in FIG. 3, or may be rotatably mounted on one surface of the cover member 120, as shown in FIG. 5A.

Hereinafter, a case where the terminal port 130 is provided in the sliding manner in the auxiliary battery 100 according to the embodiment of the present invention will be described with reference to FIG. 3, FIG. 4A, and FIG. 4B.

3 and 4A, the cover member 120 may be provided with a receiving portion 123 for receiving the terminal port 130. The receiving portion 123 may be formed on the upper surface of the cover member 120, (Not shown) provided on the lower surface 121 and a receiving groove (not shown) provided on the lower surface 122 may be coupled to each other.

The upper surface 121 or the lower surface 122 of the cover member 120 corresponding to the receiving portion 123 may be provided with a sliding portion 140 for sliding the terminal port 130 in the outward direction.

The sliding portion 140 may include a guide groove 141 and a guide rod 142. The guide groove 141 may be formed on the upper surface 121 or the lower surface 122 of the cover member 120, And may extend in the longitudinal direction of the cover member 120.

The guide rod 142 is coupled to the guide groove 141 to be moved along the guide groove 141 and the lower portion of the guide rod 142 is coupled to the terminal port 130.

At this time, the terminal of the flexible battery is formed so as to be always electrically connected to the terminal port 130, even if the terminal port 130 is located in the cover member 120 or slides outwardly.

4B, when the battery of the external electronic device is required to be charged, the guide rods 142 are moved along the guide grooves 141 so that the terminal ports (not shown) 130 project outwardly. In this manner, the terminal port protruding outwardly can be connected to an external electronic device to charge the battery.

Therefore, by implementing the auxiliary battery 100 as a business card size and printing the personal information on the surface, the business card can be used as a business card for a business at a normal time, and a battery of a wearable device such as a portable electronic device or a smart watch can be charged in an emergency .

In addition, since the size of the auxiliary battery can be reduced to the size of a business card, it can be easily carried in a purse or the like.

5A, 5B and 6, the terminal port 130 'is formed on one surface of the cover member 120', and the other surface of the cover member 120 ' As shown in FIG.

Specifically, the upper surface 121 'or the lower surface 122' of the cover member 120 'may have a seating groove 124 in which the terminal port 130' is seated, And the one end may be coupled to one end of the seating groove 124 so as to be rotated about the hinge shaft 150.

At this time, the one side of the terminal port 130 'having the terminal 131' is seated in contact with the bottom surface of the seating groove 124, so that the terminal 131 'can be prevented from being damaged.

At this time, the terminal of the flexible battery is formed to be electrically connected to the terminal port 130 'at all times even if the terminal port 130' is disposed or rotated in the seating groove 124 of the cover member 120 to be disposed outward.

As shown in FIG. 5B, is rotated around the hinge shaft 150 and protrudes outwardly of the cover member 120 ', so that one side of the terminal port 130' contacting the bottom surface of the seating groove 124 The terminal 131 may be exposed to the outside. In this way, when the terminal 131 'is exposed, the terminal can be connected to an external electronic device to charge the battery.

6, a groove 125 is formed at the edge of the seating groove 124 so that the terminal port 130 'seated in the seating groove 124 can be easily detached from the seating groove 124 .

Therefore, according to the present invention, it is possible to use the auxiliary battery as a business card size and to print personal information on the surface, so that it can be used as a business card for business purposes at a normal time, and at the same time to charge a battery of a wearable device such as a portable electronic device or a smart watch .

At this time, since the size of the auxiliary battery can be reduced to the size of a business card, it can be easily carried in a wallet or the like.

Hereinafter, the flexible battery built in the auxiliary battery will be described in detail with reference to drawings.

Referring to FIGS. 7 and 8, a flexible battery 110 according to an embodiment of the present invention includes an electrode assembly 20 and a casing 30.

The electrode assembly 20 is encapsulated with an electrolytic solution inside the casing 30 and may have a separation membrane 26 formed between the anode 22 and the cathode 24.

The positive electrode 22 includes a positive electrode collector 22a and a positive electrode active material 22b and the negative electrode 24 includes a negative electrode collector 24a and a negative electrode active material 24b. So that it can be integrated with the separator 26.

The negative electrode current collector 24a and the positive electrode current collector 22a may each have a negative electrode terminal 28a and a positive electrode terminal 28b extending from the body.

At this time, the separation membrane 26 may include a nanofiber web layer 26b on one side or both sides of the nonwoven fabric layer 26a.

Here, the nanofiber web layer 26b 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 26b. The polyacrylonitrile nanofibers of the nanofiber web layer 26b may have an average diameter of 0.1 to 2 mu m, and preferably 0.1 to 1.0 mu m.

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

Also, the nonwoven fabric constituting the nonwoven fabric layer may be selected from the group consisting of cellulose, cellulose acetate, polyvinyl alcohol (PVA), polysulfone, polyimide, polyetherimide, polyamide, (PEO), polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), polyurethane (PU), polymethylmethacrylate (PMMA) poly methylmethacrylate) and polyacrylonitrile may be used.

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 separator may be 10 to 100 mu m, preferably 10 to 50 mu m.

If the average thickness of the separator is less than 10 mu m, 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 100 mu m, It is preferable to have an average thickness within the range.

The nonwoven fabric layer may be formed to 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 anode current collector and / or the anode current collector may be made 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 cathode active material includes a cathode active material capable of reversibly intercalating and deintercalating lithium ions. Typical examples of the cathode active material include LiCoO2, LiNiO2, LiMnO2, LiMn2O4, or LiNi1-x-yCoxMyO2 (0 = 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 also possible to use other kinds of cathode active materials in addition to the cathode active material.

The negative electrode active material includes a negative electrode active material capable of intercalating and deintercalating lithium ions. Examples of the negative electrode active material include carbon-based negative electrode active material of crystalline or amorphous carbon, carbon fiber, or carbon composite material, tin oxide Lithium, a lithium alloy, and a mixture thereof. However, the present invention is not limited to the kind of the negative electrode active material.

Meanwhile, the positive electrode active material and the negative electrode active material may contain a PTFE (Polytetrafluoroethylene) component in order to prevent peeling from the positive electrode collector or the negative electrode collector and to prevent cracking of the positive electrode active material layer and the negative electrode active material layer.

The casing member 30 is formed of a plate-like member having a predetermined area and is for protecting the electrode assembly 20 from external force by accommodating the electrode assembly 20 and the electrolyte therein.

To this end, the casing member 30 is provided with a pair of first casing members 32 and a second casing member 34, and the electrolyte solution and the electrode assembly 20 contained therein are sealed And prevents leakage to the outside.

The outer sheath 30 may be sealed by an adhesive, the outer sheath 32 and the outer sheath 34 being made of two members and then being in contact with each other, or may be made of one member, It should be noted that the remainder that is folded in half along the direction and then abutted may be sealed through the adhesive.

At this time, the exterior material 30 is provided with a pattern 36 for shrinking and relaxing when bending at least one surface thereof, and at least a part of the pattern 36 is formed to facilitate contraction and relaxation of the exterior material 30 in the twisting direction Pattern 36 is included.

That is, the pattern 36 is for shrinking and relaxing in the longitudinal direction of the jacket 30 at the time of bending. The pattern 36 may be repeatedly arranged along the longitudinal direction of the facing material 30.

More specifically, the crests and troughs of the pattern 36 are formed parallel to a straight line parallel to the width direction of the facings 30.

At this time, the pattern 36 may be formed in parallel with the adjacent crests and valleys at equal intervals, or may be formed in parallel with the intervals of the adjacent crests or valleys at different intervals, Gaps may be provided in a combined form.

Accordingly, the flexible battery 110 according to an exemplary embodiment of the present invention can easily be shrunk and relaxed in the longitudinal direction during the bending process through the pattern 36.

Therefore, even if the repeatedly bending operation of the case 30 is repeated, the fatigue applied to the case 30 itself can be reduced, and the electrode assembly 20 disposed inside the case 30 can also be bent Thereby being protected from the load generated during the operation.

In addition, the pattern formed on the casing member 30 may be formed on the entire surface of the casing member 30 or may be partially formed.

The electrode assembly 20 may be provided in a flexible plate shape. However, the electrode assembly 20 may have the same pattern as that of the pattern 36 formed on the casing 30 for shrinking and relaxing during bending, as in the case 30 .

That is, the anode 22, the cathode 24, and the separator 26, which constitute the electrode assembly 20, may have the same pattern as the pattern 36 formed on the casing 30 for shrinking and relaxing during bending have.

Here, the pattern 28 formed on the electrode assembly 20 is formed parallel to a straight line parallel to the width direction as shown in Fig. It will be appreciated that the pattern 36 formed on the casing 30 and the pattern 28 formed on the electrode assembly 20 need only be matched with each other.

10 to 13, the crests and valleys may be continuous or discontinuous, and the cross-sectional shapes of the crests and valleys may be a linear pattern, a prism pattern, a semicircular pattern, a wave pattern A pattern, a polygonal pattern, and a mixed pattern thereof.

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.

100, 100 ': auxiliary battery 110, 110': flexible battery
120, 120 ': cover member 121, 121': upper surface
122, 122 ': lower surface 123:
124: seat groove 125: groove
130, 130 ': terminal port 131, 131': terminal
140: sliding portion 141: guide groove
142: guide rod 150: hinge shaft

Claims (11)

A cover member on which information is printed outside;
A flexible battery provided in the cover member; And
And a terminal port provided on one side of the cover member, the terminal port being electrically connected to the flexible battery and connected to an external device. The method according to claim 1,
Wherein the cover member comprises an upper surface and a lower surface,
Wherein the flexible battery is interposed between the upper surface and the lower surface. 3. The method of claim 2,
Wherein the terminal port is slidably coupled outward between an upper surface and a lower surface of the cover member. The method of claim 3,
And a sliding portion for sliding the terminal port outwardly from the inside of the cover member is provided outside the cover member. The method according to claim 1,
Wherein the terminal port is hinged to be pivotable in an outward direction from one side of the card case member. 6. The method of claim 5,
And a seating groove on which the terminal port is seated is formed on the outer surface of the cover member. The method according to claim 1,
Wherein the cover member is made of a flexible material. 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 electrolytic solution. 9. The method of claim 8,
The outer casing and the electrode assembly are provided with a pattern for shrinking and relaxing when bending,
Wherein the pattern of the casing and the electrode assembly are provided so as to have a pattern matching each other. 9. The method of claim 8,
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. 9. The method of claim 8,
Wherein the separation membrane comprises a nonwoven fabric layer; And a nanofiber web layer containing polyacrylonitrile nanofibers laminated on one or both surfaces of the nonwoven fabric layer.

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