CN1189899A

CN1189899A - Conformal power supply

Info

Publication number: CN1189899A
Application number: CN96195256A
Authority: CN
Inventors: 弗兰西斯·P·马拉斯皮纳; 理查德·M·阿拉迈赫
Original assignee: Motorola Inc
Current assignee: Motorola Solutions Inc
Priority date: 1995-07-05
Filing date: 1996-07-03
Publication date: 1998-08-05

Abstract

An electronic device (12) having a flexible, conformal energy source (100). The energy source (100) includes at least two terminals (34 and 36) for attaching the energy source to the device both electrically and mechanically.

Description

Conformal power supply

The present invention relates generally to energy storage equipment, or rather, relate to the suitable shape energy storage equipment of portable electric appts.

The consumption market needs to have the small portable electronic device of more Practical Performances always.For example the bidirectional broadcast wireless receiver (is Walkman ^), Disc player, cell phone and computer equipment or the like.Because electronic equipment is more and more littler, people have developed multiple carrying device.These carry equipment and comprise the shell that carries that is installed on the belt, and in the application such as portable radio and Disc player, this shell that carries is approved especially.

Yet, because electronic equipment is more and more littler, so just more and more improper such as the such carrying device of belt clamp.In addition because electronic equipment is very little, so they are more suitable for band in position more easily, as band on wrist.For example, such equipment can be single channel call receiver (as portable paging equipment).For a long time, people will be installed in the pager on wrist in the equipment such as the wrist-watch type.In these equipment, pager and wrist-watch are an integral body.And will be installed in the back side of this integral device for the battery of pager and wrist-watch power supply.Unfortunately, such equipment disposition (being the back side of battery at this equipment) is not suitable for the personal communication devices of other high power consumptions, as cell phone.If battery is installed in the above integral device,, make to lose its reliss the phone clumsiness with increasing the size of phone itself.In addition, this battery will take a large amount of expensive real estate (consumer electronic devices can more effectively utilize this space).At last,, just must take this equipment apart and could change battery (even rechargeable battery), thereby, can cause and damage and inconvenience the user if battery is installed in this integral device itself.

Therefore, we are needed to be a kind of device that can reduce the energy (as battery) volume, and it is necessary that wherein this battery is to use small-sized high power consumption electronic equipment (as being suitable for cell phone on user's wrist and pager).Simultaneously, this energy should be able to provide the suitable shell that links to each other with its electronic equipment.This energy also comprises a connector and a battery charging equipment, and wherein connector is connected to portable electric appts with battery.

Fig. 1 is the skeleton view of portable electric appts, and this equipment has one and connects belt (watchband), and in described connecting band whole manufactured energy memory device;

Fig. 2 is the skeleton view according to the electronic equipment of another embodiment of the present invention;

Fig. 3 is the decomposition side view according to energy storage equipment of the present invention; With

Fig. 4 is the skeleton view according to energy storage equipment of the present invention.

Although instructions finishes (claims have defined the feature that is considered to novel invention) with claims, we believe by the following explanation of reference accompanying drawing (wherein identical parameters is represented same parts) consideration, will understand the present invention better.

Referring now to Fig. 1, Fig. 1 explanation has the skeleton view of the electronic equipment of belt (watchband), and wherein watchband is used to connect this equipment and other assemblies.Equipment 10 comprises that one will be worn over the electronic unit 12 on the user's wrist.Equipment 10 can be a wrist-watch, or is personal communication or the individual wrist-watch of changing a social system that calculates.Therefore, equipment 10 comprises a conventional dial plate 14 and for example loudspeaker 16 and microphone apparatus 18 respectively.On the other hand, if this equipment is equipped with pager, then 16 may be a small-sized LCD, and 18 may be a sound signal device.About making wrist-watch, portable cell phone, two-way is wireless or selects the required electronic circuit of wireless receiver (as pager), be well-known technology, and above circuit can be installed in the electronic equipment 12.

Communication facilities and wrist-watch are installed within the shell 20, and shell 20 comprises that at least first connects folder 22 and be connected with second and press from both sides 24.As usually pin or dowel that see, that be used for mechanical connection watchband and wrist-watch in using wrist-watch, connecting

folder

22 and 24 can be simple pins nail or dowel.Connect

folder

22 and 24 in addition and be suitable for, be used for equipment 10 is electrically connected to electrochemical charge memory device (as battery) as the battery contactor.Can be conventional rhombus or cylindrical battery although connect the battery of

folder

22 and 24, the battery that the suitable shape flexible material of our plan utilization is made will replace this battery, and this in addition material is suitable for as watchband 30 or as connection device 10 and user's belt.Flexible suitable shape energy storage equipment with and manufacture method at common unsettled U.S. Patent application (application number 08/494,463, in please June 26 nineteen ninety-five on date, applicant Louie etc., exercise question: " equipment of the encapsulation of electrochemical apparatus and use electrochemical apparatus ") open in full in, quote it here openly as a reference.

Watchband 30 comprises battery part 32 and first end 34 and second end 36.

End

34 and 36 is suitable for as contactor, so that connect

folder

22 and 24 respectively.Therefore,

end

34 and 36 can be the positive terminal and the negative pole end of battery part 32, and utilizes

contact

22 and 24 to be electrically connected to equipment 10.Changing a social system terminals simultaneously connects and mechanical connection to carry out electronics between battery and charging equipment.

Referring now to Fig. 2, Fig. 2 illustrates another embodiment of the present invention.In this embodiment, watchband 30 comprises the first battery part 40 and the second battery part 42, utilizes buckle (buckle) 44 can connect first battery part and the second battery part, and buckle 44 comprises first coupling assembling 45 and second coupling assembling 47.In this embodiment, two batteries partly are independent battery, and its every end all has positive terminal and negative pole end.Exactly, battery part 40 has positive terminal 46 and 48, and wherein positive terminal 46 is positioned at buckle 44, and positive terminal 48 is positioned at the far-end of battery part 40.Battery part 40 also comprises negative pole 50 and 52, and wherein negative pole end 50 is positioned at buckle, and negative pole end 52 is positioned at far-end.Equally, battery part 42 comprises positive pole 54 and 56, and negative pole end 58 and 60, and its electrode spread is identical with the electrode spread of battery part 40.

In embodiment shown in Figure 2, in its every side, equipment 10 all needs two winding tentaculums, to carry out mechanical connection and electrical connection between equipment and battery part 40,42.Therefore, the positive terminal 48 of battery part 40 and negative pole end 52 are electrically connected and mechanical connection with the link 62 and 64 of equipment 10.Similarly, the positive terminal 56 of battery part 42 and negative pole end 60 are electrically connected and mechanical connection with the link 66 and 68 of equipment 10.

Utilize coupling assembling 45 and 47, be electrically connected and mechanical connection in battery part 40 and 42, positive terminal 46 is linked to each other with positive terminal 54, negative pole end 50 links to each other with negative pole end 58.Although adopt " key/keyhole " electric wire connecting junction that electrical connection and mechanical connection have been described here, for those skilled in the art, obviously other connected modes at least can be the same effective with the connected mode of explanation here.

Buckle 44 can be suitable for the charging inlet as battery part 40 and 42 in addition.Thereby buckle 44 can comprise charging contactor 70 and 72, wherein utilizes electric wire 74 electrical interconnection charging contactors 70 and positive terminal 46,48,54 and 46, utilizes electric wire 76 electrical interconnection charging contactors 72 and negative pole end 50,52,58 and 60.Buckle 44 also comprises charging circuit 80, is used for the charging process of monitoring battery part.Here the multiple well-known different charge observation circuit of useful employing.In addition, charging circuit 80 is suitable for monitoring each battery behavior between charge period, as temperature, pressure, voltage, electric current or the like.Charging circuit 80 can also comprise a memory device, is stored with to carry out the charging algorithm that battery partly charges.

Referring now to Fig. 3, Fig. 3 explanation is according to decomposition side view of the present invention, that be used as the electrochemical charge memory device 100 of watchband 30.Electrochemical charge memory device 100 comprises the first polymer encapsulated film 112, first sheet metal 114, first electrode 116, first current collector 118, electrolyte 120, the second electrodes 122, the second current collectors 124, encapsulation 128 of second sheet metal, 126, the second thin polymer films and polymeric seal bar 130.The first polymer encapsulated film 112 and the second polymer encapsulated film, 128 usefulness polymeric materials are made, and moisture-penetrability every day of this material is less than 1.3g/m ², what wherein be used for the water vapor transmission measurement is defined as 1 atmospheric pressure, the film that 1mm is thick and 95% relative humidity round the clock.In addition, the oxygen permeability of this material every day should be less than 46.5ml/m ², what wherein be used for the oxygen transmission measurement is defined as 1 atmospheric pressure, the film that 1mm is thick and 75% relative humidity round the clock.Owing to be difficult to find single polymers, so

film

112 and 128 is sandwich construction with above characteristic.Make above sandwich construction by two or more polymkeric substance of Compound Extrusion, so that the thickness of packaging film approximately less than 5mm, preferably is about 2mm.Those skilled in the art can expect this film of placement of multiple layers on another layer, are suitable for reinforcing the thicker equipment that watchband uses so that make.

Compound Extrusion is that single step is handled, and is a kind of technology of well-known making sheets of polymer material.The sandwich construction of making

film

112 and 128 is preferably three-decker, wherein ground floor 123 and the 3rd layer of 125 usefulness tygon or polypropylene are made, and by following material tygon of Compound Extrusion or polypropylene: polyvinylidene chloride, polyester, fluorocarbon resin, Polyvinylchloride and polyvinylidene chloride methacrylate.Ground floor 123 and the 3rd layer 125 encapsulation second layer 127, or the second layer 127 is clipped between ground floor and the 3rd layer, so that the making packaging film, wherein the second layer is to make with polyvinylidene chloride.Subsequently this film is cut into watchband and use required shape.

This film utilizes the external margin 32 definition encapsulation borders of film 112 and 128.In addition, because each layer film has identical size and dimension, so when vertically piling up, they coincide mutually.Can select first sheet metal 114 is placed on the first polymer encapsulated film 112.

Outside oxygen and water vapor barrier layer that the polymer encapsulated film provides, under the situation that needs excess oxygen G﹠W steam barrier properties, first sheet metal and second sheet metal 126 are provided, and wherein second sheet metal 126 is placed on the second polymer encapsulated film 128.Therefore, under high pressure, can adopt this film to make battery/watchband waterproof.When using, first sheet metal 114 and second sheet metal 126 are usually located at the central authorities of polymer encapsulated film, and are positioned at its external margin 132 determined borders fully.Usually the thickness of sheet metal is positioned within the 5-25 micron, preferably is about 10 microns.Yet those skilled in the art know, can adopt the thickness outside the above scope and do not reduce its performance.

Using the additional function of sheet metal is isolated

electrode

116 and 122 from packaging film 112 and 128.Under the unsatisfactory situation of the compatibility between packaging film and the electrode material, must carry out above isolation.Therefore, the best compatible material sheet metal restraining barrier of utilization and electrode and packaging film.Consider this point, preferably utilize the metal from following metal group, selected to make the sheet metal restraining barrier: aluminium, copper, silver, gold, nickel, stainless steel with and composition thereof.

First electrode 116 be placed on first sheet metal or ground floor polymer encapsulated material on, and be positioned at its up and down defined border.The customization and first electrode that formalizes make this electrode be slightly less than first sheet metal, or are slightly less than ground floor polymer encapsulated material.First current collector 118 is connected to first electrode 116, and wherein the segment set electrode extends the defined encapsulation of first polymer encapsulated film border.Therefore, this current collector defines first joint 134.Perhaps first joint 134 is connected to the terminals 34 of Fig. 1, perhaps changes a social system this joint, as the terminals 34 of Fig. 1, so that electronics connects Electricity storage device and equipment 10 shown in Figure 1.

Electrolyte 120 is placed on first electrode 116, and electrolyte 120 or be aqueous electrolyte perhaps is a gel-form solid polymer electrolyte.In other words, this electrolyte can be solid electrolyte.Selection be used for should with electrolyte be well-known technology, those skilled in the art be easy to the operation.Arrange this electrolyte, thereby can not see any part of first electrode, that is first electrode covered fully by electrolyte, and first joint extends outwardly below electrolyte.

Second electrode 122 is placed on the electrolyte 120, and is identical with the size and dimension of first electrode, and is placed as with first electrode 116 identical.First electrode is that different electrochemical activity materials is made with second electrode, so that voltage potential is provided.Select suitable material to being to know technology.Second current collector 124 is connected to second electrode, and partial electrode extends the encapsulation border, thereby constitutes second joint 136.Similar with first joint 134, change a social system second joint as terminals, press from both sides 34 to connect battery shown in Figure 1 32 with shown in Figure 1 being connected.Therefore, positive pole 34 and negative pole 36 shown in Figure 1 are provided by joint shown in Figure 3 134 and 136.In other words,

joint

134 and 136 shown in Figure 3 all stretches out from the end on encapsulation border, and does not overlap, so that the electric wire 74 and 76 in the embodiment shown in Figure 2 is provided.

In order to assemble electrochemical charge memory device shown in Figure 3, arrange first sheet metal and second sheet metal with stack manner, connect first electrode and second electrode of first current collector and second current collector, and electrolyte.

Referring now to Fig. 4, the skeleton view of above-mentioned sealed electrochemical Electricity storage device with reference to Fig. 3 is described here.Stacked structure comprises the overlapping layer 142 of each assembly shown in Figure 3.The sealed electrochemical Electricity storage device is placed between the first polymer encapsulated film 112 and the second polymer encapsulated film 128.First joint 134 and second joint 136 reach outside this encapsulation, and the position that utilizes polymeric seal bar sealing shown in Figure 3 to stretch out joint from encapsulation.Know from Fig. 4, battery can be processed into flat lengthening assembly near the watchband shape.

Compare with the electrochemical charge memory device that encapsulates with betal can, the advantage of electrochemical charge memory device cell package is significantly weight reduction.In addition, as above the equipment of encapsulation can meet given shape coefficient (as user's wrist).In addition, because encapsulation comparatively robust, durable, therefore as the electrochemical charge memory device that uses with equipment 10 and the watchband of equipment 10, its life-span is very long.

Although diagram has also illustrated preferred forms of the present invention, obviously the present invention is not limited to this.Those skilled in the art can expect various improvement, change, adjustment, replacement and equivalent and not deviate from defined the spirit and scope of the invention in the appended claims book.

Claims

1. one kind is suitable for the portable electric appts on user's wrist, and this equipment comprises:

One shell, this shell comprise that the first connection folder (attachment slip) is connected folder with second, and each connects still battery contactor of folder;

One watchband, this watchband have first end and second end, and each end links to each other with described one of the folder that is connected, and described watchband is made by flexible energy storage equipment.

2. according to the portable electric appts of claim 1, wherein said flexible energy storage equipment is a lithium battery.

3. according to the portable electric appts of claim 1, wherein said electronic equipment is a wrist-watch.

4. according to the portable electric appts of claim 1, wherein said electronic equipment is a cell phone.

5. a flexibility that is used for portable electric appts is fitted the shape energy, and this energy comprises:

At least two flexible batteries, each battery all have first end and second end;

Every end at each described battery is arranged positive battery contactor and negative battery contactor; With

Be arranged between the described battery, be used for the coupling arrangement of mechanical connection and the described battery of electrical connection.

6. the energy of claim 5, wherein said flexible battery is a flat lengthening assembly, this assembly constitutes band.

7. the energy of claim 5, wherein said coupling arrangement also is suitable for connecting described battery and battery charger.

8. the energy of claim 5, wherein said coupling arrangement also comprises charging circuit, this circuit is used to measure the charging process of described battery.

9. the energy of claim 5, wherein at least one described anode contactor links to each other with electronic equipment with a described battery cathode contactor.

10. the energy of claim 5, wherein said electronic equipment is an incorporate wrist-watch/cell phone.