TW451515B - Cylindrical metal-air battery with a cylindrical peripheral air cathode - Google Patents

Abstract

A cylindrical metal-air cell has a cylindrical housing, an axially extending cylindrical air cathode adjacent an interior surface of the housing, and a plurality of elongate plenums defined between the oxygen electrode and the interior surface of the housing. Isolating passageway are positioned between the ambient environment and each of the plenums, and an air moving device is operable to force air through the isolating passageways and into at least one of the plenums. The air moving device may be a micromachined blower controlled by a circuit integrated into the housing of the blower.

Description

^ 451515 V. Description of the Invention (1) [Field of the Invention] The present invention relates to a metal-air battery using an active air moving device to provide a reactive gas, and more particularly to a round-shaped metal having an air cathode with a cylindrical circumference. Air unit battery. Related patent applications

" AIR MANAGER SYSTEM FOR METAL-AIR BATTERIES UTILIZING A DIAPHRAGM OR BELLOWS " (Attorney Docket 01446-0890); " AIR MOVER FOR A METAL-AIR BATTERY UTILIZING A VARIABLE VOLUME ENCLOSURE " (Attorney Docket 01446-1110); " DIFFUSION CONTROLLED AIR VENT WITH AN INTERIOR FAN " (Attorney Docket 01446-0940);

" UNIFORM SHELL FOR A METAL-AIR BATTERY " (Attorney Docket 01446-1100); " LOAD RESPONSIVE AIR DOOR FOR A METAL-AIR CELL " (Attorney Docket 01446-1130);

M5 1 5 1 5 V. Description of the invention (2) GEOMETRY CHANGE DIFFUSION TUBE FOR METAL-AIR BATTERIES " (Attorney Docket 01446-1000); " AIR-MANAGING SYSTEM FOR METAL-AIR BATTERY USING RESEALABLE SEPTUMH (Attorney Docket 01446-1070 ); And " AIR DELIVERY SYSTEM WITH VOLUME-CHANGEABLE PLENUM OF METAL-AIR BATTERY " (Attorney Docket 012446-0910); [Background of the Invention] General metal air-fluorine unit batteries, such as zinc air unit batteries, use one or more A permeable cathode, which is separated from the metal anode by an electrolyte. During battery operation, oxygen from the surrounding air undergoes a conversion reaction on one or more cathodes to generate argon ions. The metal zinc anode is then oxidized by hydroxide ions. Water and electrons are released in an electrochemical reaction to provide electricity. —Initially ’metal-air batteries can only be applied to limited commercial devices, such as hearing aids that require low power. The air openings in these batteries that allow air to reach the air cathode are small, allowing the battery to operate for a period of time. Page 5 4 515 15 I5 'Invention Description (3) ~ ^ without the occurrence of relative humidity and water pressure in the battery The difference of the power 'produced him indiscriminately or indirectly. However, the power output of such a battery is too low 'to start on devices such as digital cameras, big brother phones or laptops. In addition, it is not practical to increase the air opening of a common battery, because it will cause permanent failure or dryness. η In order to increase the power output of metal-air batteries, it can be applied to devices such as digital cameras' big brother phones or laptops, so an air controller has been developed to provide reactive gas flow to one or more metal-air units The battery's air cathode can isolate the unit cell from the ambient air and humidity when no power output is required. Compared with traditional electrochemical power sources, metal air unit cells with air controllers can provide higher power output. It has a long service life and is light in weight. These advantages are partly because metal-air unit cells use oxygen in the surrounding air as a reactant in the electrochemical process, rather than heavier metals or metal compounds. Examples of air controllers are shown in U.S. Patent Nos. 491 3983, 5356729 and 5691 074 < * Metal air cell batteries that have been designed to conform to the standard " D " or " AA " cylindrical alkaline batteries. Cylindrical batteries without air controllers are shown in the United States (· Chinese patent 3697326 and European patent 1 4591 35. These designs did not succeed-the reason is likely to be that they cannot provide high enough power output to the conventional standard size cylinders The battery-operated device is not required to provide a large air opening that can cause the battery to flood or dry out.

Page 6 451515 F. Description of the invention (4) Therefore, 'a cylindrical metal-air battery of a standard size is needed, which can provide sufficient power output to drive electronic devices, and can be inserted into these devices individually or from y. Inside the battery case. When plugged into these devices and over a long period of non-use, the batteries will not flood or dry out. [Objective of the Invention] The present invention is to provide a cylindrical metal-air battery, which can provide high power output and can be inserted into an electronic device without flooding or drying out after a long non-use period. The above-mentioned object can be achieved according to the cylindrical metal-air battery according to the present invention. The battery has a cylindrical casing, a cylindrical oxygen electrode, a plurality of elongated compartments, an isolation channel, and an air moving device, wherein the cylindrical oxygen electrode is close to the casing. The surface is axially extended. The extended compartment is defined between the oxygen electrode and the inner surface of the housing. The isolation channel is between the surrounding environment and each compartment. When the air moving device is opened, it drives air through the insulation. Access to at least one compartment. The isolated channel can protect the battery from the surrounding environment when the airtight device is not sealed (and the air moving device does not drive air through the isolated channel). In the embodiment of the present invention, the axial compartment is made of electrode material. shape

Page 7 45 1 5 t 5 V. Description of the invention (5) I structure, overhanging | Housing is, # 野 is conductive carbonaceous material. In this embodiment t, the casing or I-shaped compartment is smooth and cylindrical. In another embodiment, the casing is formed into a plurality of pumps and the outer surface of the electrode material is smooth and cylindrical. Another implementation is γγ, which takes 疋 & 疋 from the outside and the carbon material of the electrode will contact the shell and I collect current for the electrode. 2 The adiabatic channel is best shaped by the end element that seals the end of the housing. The air moving device is any suitable device that can move air, such as a micro-liquid fan 'micromechanical fan or a diaphragm air pump. In another embodiment of the present invention, the 'isolation channel is only available at the rear end of the housing, and the air channel is defined to allow air to move in the opposite direction from the -end_ along a set of axial compartments, and Along one end of the other set of axial compartments, flow back in the opposite direction. Moreover, the air will be forced into the compartment or discharged from the compartment through the same isolation channel. The unit cells of the present invention can be used to form a battery pack or placed in a traditional electronic pool box of an electronic device in a group manner. The unit cells are connected in series or parallel. 25watt 的 The use of a micromechanical bellows that consumes 10% or less of the battery's available power, moves air at a rate of 75cc or more per minute, so that each " D " size unit battery can generate at least about 1.25 Watts Turn out electricity. Utilizing a micromechanical windbox that consumes 10% or less of the battery's available power, moving air at a rate of 30cc or more per minute, allowing each " AAH-sized unit battery to generate at least about 0.5 watts Output power. It is possible to construct a unit cell utilizing the " D " size of the present invention,

451515 V. Description of the invention (6) ~~ — "-Use a micromechanical bellows that will consume 10% or less of the available power of the battery, move the air at a rate of 150 cc or higher for the battery to generate Output power of 25 watts or higher 'and using the present invention, AA " size unit cells, use a micromechanical bellows that consumes 10% or less of the battery's available power at a rate of 60cc or more Move the air and let the battery produce 10 watts or more of power out of the wheel. Other objects and features of the present invention will become more apparent after the following description of the preferred embodiment of the present invention, in conjunction with the related drawings and the scope of the attached patent application. [Detailed description of the invention] Detailed reference is made to the drawings, in which similar reference numerals represent similar parts in all drawings, and FIG. 1 shows a cylindrical metal air battery 10 of the present invention. The battery 丨 0 can be made into the required size to match its components, such as " D " or, | AA, _ size. As shown in FIG. 5, the battery 10 is in a case or casing 12 and is formed in a can shape by a conductive metal, similar to other batteries, such as alkaline batteries. When the cylindrical casing 12 is formed, a plurality of spaced apart axially extending indentations 50 are formed on the cylindrical side wall 13 of the casing 12. The indentation 50 starts from the top of the battery 10 and preferably extends over the entire cylindrical side wall ^

Page 9 45t5 t5 V. Description of the invention (7) An object 14 is formed at the bottom of the battery and used as a cathode terminal. A hollow cylindrical air cathode 18 is placed in the middle part I of the length of the battery 10, with the top of the cathode approximately aligned above the beginning of the dent 50. The cathode i is composed of a carbon-containing round rod or an extruded cylinder. The composition of the cathode is preferably an electrically conductive carbon material such as carbon black, activated carbon or stone, ink carbon treated with a catalytic material, to improve the reducibility of oxygen, and the use of Teflon or polyethylene ammonium polymer or other Similar high-molecular tethering agents increase the mechanical strength of the β cathode by coating it with a layer of hydrophobic material, such as microporous Tef 丨 οη, to prevent liquid transfer from occurring, but allowing oxygen to enter and exit the carbon catalyst mixture. Appropriate Yin (] pole composition is disclosed in the US patent entitled ‘Primary Meta and Air Power Sourxe and Ventilation System for the October 23, 2010, and is used as reference material in this case.

Isolating plates (wet microporous polypropylene plates, not shown) will draw a lot of straight lines inside the hollow cathode, and the anode material is filled with zinc, preferably in a known manner, in combination with the electrolyte in zinc Powder, such as potassium hydroxide. One is a non-conductive plate (not shown) that clamps the anode material in the center of the cathode. As shown in circle 4, the cathode 18 can fit inside the casing 12, so that a plurality of lowering compartments 20 are formed by the area of the recesses 50 of the casing 12. The% chamber 2 () sleeve extends to the length of the cathode 18 'and is spaced apart near the outer cylindrical surface. The conductive shell on the dent 50 is in electrical contact with the cathode material, allowing

4 5 t 5 1 S V. Description of the invention (8) The shell has the function of collecting cathode current. In addition, the copper foil narrow band 52 is between the case 12 and the cathode 18 with two dents on the opposite side of the case. The narrow band 52 is connected to the cathode end 14 to help the current collection, and the compartments 20 are divided into two groups. In the manner described above, a separate air flow path β is defined. If necessary, the dent case material is isolated from the cathode material. On, let the copper foil narrow band 5 2 be the only cathode current collector plate to allow air to pass between the partitions in each group, but it is better not to be between the two groups. This combination increases the surface of the cathode ' exposed to the air ' to obtain a higher power output. On the top of the battery 10, the sealed upper cover 202 is grasped and closed by the open end of the battery 10 in a conventional manner using the casing corrugated area 204 of the casing 12. The upper lid defines a central protrusion 205 that is slightly smaller in diameter than the housing 12. The protrusion 205 extends downward to grasp the cathode 18 and the anode material 16. The anode electrode 2 collecting plate spike 17 passes through the upper cover 202 at the opening 203 and extends axially downward in a known manner such as the center of the anode material. The upper end of the spike 17 serves as the anode end. The upper i cover 20β2 defines a plurality of axially extending peripheral isolation channels 206. 202 is sealed in the battery fixed part, it can still be kept unsealed. Note that the channel 206 can be the two sides of the environment completely surrounded by the cover material, or the battery can be routed along different paths. Internally connected to the ring ', for example, to an opening in the side wall of the housing 12. Figures 2 and 囷 5 show that it can be fitted with the support plate 22 at the bottom of the battery case 12.

V. Description of the invention (9) The pole 18 and the anode 16 'resist the upper cover 202 °. The support plate 22 is extended to = the bottom protrusion. Then the compartment 20 is sealed, and the seal is isolated. Outside channel 25, shown at 5A. Bottom of the enclosure = matching openings 26 allow air to enter each of the isolated channels 25. An air moving device 37 is placed in the core 23 of the tray 22. The moving device may be of any type, such as a bellows or a diaphragm air pump. In the embodiment of FIG. 5, the air moving device 37 includes a printed circuit board (pcB) 42 ′ having a control circuit thereon. Program processor wash memory. For example, the control circuit includes an electrical load sensor to operate the air moving device based on the load demand on the battery. This operation is described in the patent application filed on September 24, 1997 under the application number 08/936206. The air moving device further includes an electromagnetic oscillator made of a coil 44 fixed to the upper side of the pCB 42 and a magnet 46 which can be received by a central opening in the coil 44. The magnet 46 is adhered to the spacer 47, and the spacer 47 is adhered to the spacer 48. The diaphragm 48 may be made of different flexible materials, including a thermoplastic viscoelastic ship (TPE). For example, it is manufactured by Advanced Elastomer Systems. Sant op renea thermoplastic rubber. Each of the partitions 47 and the membranes 48 has a circular central region ' and defines annulars 49, 51, respectively, which extend into the compartment 20 of the casing 12 ' to fill the cross section of the casing 12. Diaphragm

Page 12 ^ 451515 V. Description of the invention (ίο) The periphery of 48, that is, at least the ring 49, is not adhered to the partition 51. Therefore, the diaphragm 48 is located between the isolation channel 25 and the cathode compartment 20, and reciprocates with the magnet 46 to apply an appropriate fluctuating current to the coil 44. When the magnet moves downward, as shown in Figure 2, the periphery of the diaphragm will be isolated from the flat plate 51, and air will pass through the isolation channel 25, the opening of the partition 47, and surround the diaphragm 48 'to enter the space above the partition Inside. When the magnet moves upward, the partition 51 lifts up the entire diaphragm, compresses the air above the partition, and drives the air into the compartment 20. Therefore, the separator can transport air upward into the cathode compartment 20. The diaphragm 48 may also be driven by a piezoelectric oscillator or a miniature relay. i In the operation of the embodiment of FIGS. 1 to 5, the control circuit of the PCB 42 responds to the load applied to the terminals 14 and 17, and the battery itself provides a variable current i to the coil 44. The coil allows the magnet 46 and the attached diaphragm 48 to make a reciprocating I-type movement, drawing air from the outside of the battery through the opening 26, isolating the channel 25 from the compartment! 20, and the fresh air provides oxygen for the above-mentioned electrochemical | The reaction works. The gas then leaves the battery through the isolation channel 206. When the air moving device 37 is not operated, the air flow is restricted from flowing in and out of the battery, and the isolation passages 25 and 206 protect the battery elements' from being inundated or dried out. Another way is that the isolation channel 206 can be eliminated when the compartment 20 is divided into two groups by the copper foil narrow band 52, as described above. A duct (not shown) can be placed to direct the air drawn by the diaphragm to a set of compartments 20, and optionally a duct (not shown) can be placed on top of the cathode 18 to connect the two sets of compartments

451515 Five 'Invention Notes (π) — " Room. According to this design, the air flows upward to the first group of compartments 20, then to the second group of compartments 20, passes down the second group of compartments to the isolated channel 25 related to the second group of compartments, and is finally discharged. Outside the battery β When power is drawn from the battery 10, the circuits connected to the anode 16 and the cathode 18 will extend from the anode spikes 17, and through the applied load, the cathode terminal 14, the conductive shell 12, and the recessed area 5.上 的 材料 材料 18。 On the cathode material 18. A non-conductive layer (not shown) may be used to cover the cylindrical sidewall region 0 of the casing 12. The battery 100 according to the second embodiment of the present invention is shown in FIGS. 6 to 14. These elements having the same reference numerals also have the same structure and function as those of the previous embodiments described above. The battery 100 is built in a cylindrical case or casing 112 i, and has a smooth cylindrical side wall U3 ^ formed at the bottom of the casing 112. The protrusion 114 serves as the cathode end, and a plurality of air openings 10 through The bottom of the outer i case allows outside air to enter the battery 100. The non-conductive layer u0, for example, a plastic film is adhered to the pillar-shaped sidewall 113, as shown in FIG. Referring to FIGS. 7-10, the hollow cathode 118 cooperates with the casing 112 and contacts the inner surface of the casing. With respect to the smooth outer surface of the cathode 18 described above, the cathode (118 is formed by extruding peripheral axial grooves 20 and 20, and is defined between the extended-ridges 150. The ridges 150 contact the conductive shell 112 To collect the cathode current, a cavity 120 is formed by the groove 120 fixed by the casing 112. The bottom end of the cathode 118 is an area without ridges 15 and defines the extension of the cathode.

Page 14 451515 V. Description of the invention (12): ----- Zone 1 51. The preferred composition of the cathode 118 is as described above. The cathode 118 is stuck into the lid-shaped support plate 200 'as shown in Figure 14. The detailed supporting plate 200 in FIGS. 9 to ^ defines the upper object recessed area 211 to receive the cathode extension area 151. A plurality of isolation channels 204 are formed on the outer edge of the support plate 200, and are separated from the ridges 152. The isolation channel 204 is aligned to the axial groove 12Q. The bottom recessed area 214 is also formed in the tray 200 to receive the air mover assembly 1 3 7 to be described below. The bottom recessed area is connected to the bottom end of each isolation channel 204. As described in the above embodiment, the 'anode material 16 fills the hollow portion of the cathode 18'. The upper cover 202 has a current collecting plate spike 17 and defines an isolation channel 206. The upper cover 202 is disposed on the top of the housing 112 in the manner described above. The anode material 16 remains between the upper cover plate 200 and the upper cover 202. The air mover assembly 137 shown in the cross section of Fig. 6 and Fig. 14 is a micromachined micromachined process using a non-metallic material, such as a silicon carbide material. Structure is formed by engraving or vapor deposition. Multi-layered structures are used to create complex three-dimensional space devices. A description of the rotating micromechanical device can be found in the article by H. et al., Epstein, " Micro-Heat Engines, Gas Turbines, and Rocket Engines-The MIT Microengine Project " »28th AIAA Fliud Dynamics Conference / 4th AIAA shear Flow Control Conference (American

Page 15 451515 V. Description of the invention (13)

Institute of Aeronautics and Astronautics, No. A IAA 97-1 773, June 29 to July 2, 1997). Micromotors can be found in Howe et al., U.S. Patent 4,943,750. The air moving devices in Figs. 6 and 14 are exaggerated. Using a micro-mechanical technique, a bellows housing 138 is manufactured, surrounding the motor 140 and the squirrel-cage bellows 142, and placed on a motor drive shaft. The motor 14 may be a motor of the type shown in U.S. Patent 4,943,750, which is hereby incorporated by reference. The motor draws approximately 30 milliwatts of electricity from the battery to operate. The bellows rotates on air bearings at supersonic speeds. For example, the diameter of the bellows 142 is 4 mm to 20 mm. For example, the thickness of the casing 1 38 is several hundred micrometers. The inlet opening 14 5 is connected to the inside of the housing 11 2 near the bottom of the air opening 1 0 9. Having one or more discharge openings 146 allows the bellows to drive air through the isolation passage 204 and into the cathode compartment 120. It is preferred to have a discharge port 146 aligned to each compartment 120. Motors / bellows 140 and 142 are operated at high speeds, such as 2 million rpm or higher. At this high rpm, the sonic noise is at a low level, and the noise will not make people using the battery as a power source inconvenient, or they will not be noticed. When the bellows is used to manufacture the bellows, the control circuit is in the structure of the bellows casing 138. This integrated circuit can be programmed to perform similar functions as the circuit of PCB 42 described above. Especially, air moves

Page 16 451515 V. Description of the invention (14) ^^^, the device 137 can be operated under pulse conditions to conserve energy. Therefore, the air moving device 137 integrates the bellows ’motor and control electronics into the 丄 = device, and only takes up little space, uses electricity at low speed, and |

It is manufactured cheaply using semiconductor mass production technology. I

I As mentioned above, when the air is moving at a flow rate of 75cc or more per minute, a miniature bellows that uses 10% or less of the battery's available power can be used to make each battery with a standard " D " size battery Generates at least about 125 watts of power out. When air is moving at a flow rate of 30 cc or more per minute, a miniature bellows that uses 10% or less of the battery's available power can be used to make each battery of Power output of about 0 5 watts. When the air moves at a flow rate of 150cc or more per minute, a miniature bellows that takes 10% or less of the battery's available power may be used to construct a battery with the standard D size of the present invention, yielding 2.5 Power output of watts or higher, and when air moves at a flow rate of 60Occ or more per minute, use 10% or lower batteries. Miniature bellows with available power may be used to construct The invention's standard "D 'size battery produces a power output of 1.0 watts or more. For details, please refer to the above-mentioned isolation channels. These isolation channels are constructed and designed to allow sufficient air flow during the operation of the air moving device. And it's better to have. In addition, the isolation channel is preferably constructed. Energy limit = air flow and air diffusion, so that when the air displacement device does not drive air through the isolation channel, the metal air battery can provide the load.

451515 V. Description of the invention (15)-The ratio of the non-polar current used will be less than about 50 or greater than the wheel current. In addition, the "isolation channel" can provide a "isolation rate" β ~ 1 | "isolation rate" of greater than 50 to 1 when the oxygen electrode of the battery is completely exposed to the surrounding air, and the water loss rate or increase rate of the battery is When the battery's oxygen electrode is isolated from the surrounding air, the water loss rate or increase rate of the battery is in addition to the water loss rate or increase rate through one or more restricted openings. For example, 'the electrolyte with about 35% ΚΟΗ in water, about 50% internal relative fullness', the relative humidity of the surrounding air is about 10%, and there is no fan drive cycle. For the same metal-air battery, the oxygen electrode is completely The rate of battery water loss when exposed to the surrounding air must be 100 times greater than the rate of battery water loss when the oxygen-gas electrode is completely separated from the surrounding air fluorine, except that it passes through one or more of the above-mentioned restricted openings. Beyond the water loss rate. In this example, it is necessary to obtain an isolation ratio greater than 1000 to 1. More specifically, 'Each isolation channel preferably has a width perpendicular to the direction of air flow' and a direction parallel to the direction of air flow. Length. Select the width and length 'to avoid the air flow and diffusion through the isolated passage and the air moving device does not drive the air through the isolated passage. The length is greater than the width, preferably 疋 longer than twice the width, it is best to use Large aspect ratio. Depending on the characteristics of the metal-air battery, the ratio can be greater than 2000 to 1. However, 'the preferred aspect ratio is 10 to 1. The isolation channel can only form a space between the surrounding environment and the oxygen electrode

Page 18/451515 V. Description of the invention (16) () The part of the path through which qi must pass. Each isolation channel is defined to pass through the thickness of the battery case or battery case, but is preferably formed in the tubular form described above. At this time, the isolation channel may be cylindrical, provided for some applications, each having a length of about 0.3 to 2.5 inches or more, about 0.88 to 1.0 inches is best, and the inner diameter is about 0.03 to 0.3 inches, preferably about 0.09 to 0.19 inches. For some applications, the total open area of each isolated channel measured perpendicular to the direction of air flow is about 0.0007 to 0.5 square inches. In other applications, such as smaller cylindrical batteries, each isolation channel has a length of about 0.1 to 0.3 inches or greater, about 0.1 to 0.2 inches is best, and the inner diameter About 0.01 to 0.05 inches, preferably about 0.015 inches. The preferred size for a particular application is related to the geometry of the channel, the geometry of the cathode compartment, the particular air mover used, and the volume of air or battery required to operate at the desired level. The isolation channel does not have to be cylindrical. Any cross-sectional shape that can provide the required isolation can be appropriate. The β isolation channel does not need to be uniform, as long as at least a part of each isolation channel can provide isolation. In addition, the isolation channel can be straight or curved. Other typical isolated channels and systems are disclosed in U.S. Patent 5,691,074 and U.S. Patent Application 08/55661 3, the entire contents of which are hereby incorporated by reference. Those skilled in the art can understand that other types of air

Page 19 4 5 15 15

P. 20 4 5 T 5 1 5! Simple description of 囷 -style 1 Fig. 1 is a side view of a cylindrical metal-air battery according to the present invention. Fig. 2 is a sectional view taken along the line 2-2 of Fig. 1; Fig. 3 is an exploded view of the structural elements of the battery of Figs. 1 and 2; FIG. 4 is a radial sectional view taken along a secant line 4 _ 4 in FIG. 1. Fig. 5A is a radial circle along the secant line 5-5 of Fig. I without a diaphragm and a partition line. Figure 5B is a radial cross-sectional view taken along the line 5_5 of the figure with a dividing line = It is along a circle with a diaphragm and a dividing line. The radial section δ is according to another caution of the present invention Such as Figure. Example Explosive Decomposition of Metal Air Battery

Fig. 7 is the diameter of the air cathode of the battery of Fig. 6 along the cut line 7 ~ γ ψ T in Fig. 8. Circle 8 is a radial cross-sectional view of the second gas cathode in the & FIG. 9 is a top view of the bottom shirt of the battery of FIG. 6 on the cup.

451515 Brief description of the drawings Fig. 10 is a radial sectional view taken along the line 10-10 of Fig. 9. FIG. 11 is a radial sectional view taken along the line 11-11 of FIG. 9. FIG. FIG. 12 is a radial cross-sectional view of the battery cover 1 2-1 2 along the cut line in FIG. 6. FIG. 13 is a bottom view of the battery case of FIG. 6. 〇 FIG. 14 is a radial sectional view of the battery of FIG. 6. [Illustration of figure number] Battery 10 Battery 1 0 0 Case 12 Cylindrical side wall 1 3 Projection 14 Cathode end 14 Spiked 1 7 Cylindrical air cathode 18 Air opening 1 0 9 Case 11 2 Smooth cylindrical side wall 11 3 protruding 114

Brief description of the style on page 22 Hollow cathode 1 18 Axial groove 1 20 Air moving device 137 Bellows housing 138 Discharge outlet 1 4 6 Lengthened ridge 150 Cathode extension area 1 5 1 Compartment 20 Sealed upper cover 202 Opening 203 sets Tube corrugated area 204 Central protrusion 205 Peripheral isolation channel 206 Support plate 22 Hollow core 2 3 Multiple projections 24 Isolation channel 2 5 Matching opening 2 6 Air moving device 37 Printed circuit board (PCB) 42 Coil 44 Magnet 46 Partition 47 Diaphragm 48

Page 23, 451515 Brief description of the drawing Ring 49 Axial extension dent 50 Flat plate 51 Copper foil narrow band 52

Claims (1)

451515 6. Scope of patent application-'A metal air power supply, including: ^ a cylindrical casing' has opposite ends' and defines the length and #direction between the opposite ends; an axially extending oxygen electrode Close to the inner surface of the enclosure; a plurality of elongated compartments' are defined between the oxygen electrode and the inner surface of the enclosure; a plurality of isolation channels' will at least partially define a connection path between the surrounding environment and each compartment; and ' An air moving device 'when the air moving device is opened to drive air through the isolated passage and enter the compartment, the isolated passage can be unsealed and the air moving device does not drive air through the isolated passage' Operate 'in order to restrict the air flow through the isolated passage. 2. If the metal-air power supply of item I in the scope of the patent application, further includes: _ an anode surrounded by an oxygen electrode; and an upper cover covering the first end of the oxygen electrode and including the anode in Inside the oxygen electrode; and wherein the isolation channel is defined between the upper cover and the inner surface of the housing. 3. The metal air power supply according to item 2 in the scope of the patent application, wherein the upper cover is located between the air moving device and the oxygen electrode. Page 25, 451515 6. Scope of patent application 4. For example, the metal air power supply of item 1 in the scope of patent application, wherein: the re-farm isolation channel is a plurality of first isolation channels; the metal-air power supply further includes Cover several second isolation channels' close to the second end of the oxygen electrode, and at least a part of each second isolation channel will define the connection path between the surrounding environment and at least one compartment ° 5. The metal-air power supply of item 4 in the scope of the patent application, wherein the first and second isolation channels together provide an isolation ratio of at least 100 to 1.丨 6. The metal-air power supply according to item 1 in the scope of the patent application, wherein the isolation channel is formed by an extended recessed area in the oxygen electrode. 7. The metal air power supply according to item 1 in the scope of the patent application, wherein the isolation channel is formed by an elongated dent in the casing. i 8. An air controller in a metal-air battery, the metal-air battery comprising an air electrode in a housing, the air controller: an air channel 'defined in the housing and extending to close to the air electrode; Air σ and an exhaust port are located on each end of a path connected to the external environment outside the housing; and a micro-mechanical bellows is used to drive air through the air passage; Page 26 < 45T515 6. Scope of patent application ~ When the micro-mechanical bellows is in operation and the bellows that takes less than 10% of the battery's available power is used to move air at a flow rate of 30CC or more per minute Talking about the battery will produce a power output of 0.5 watts or higher. 9. The air controller according to item 8 in the scope of the patent application, the battery is cylindrical, and the air passage includes a plurality of elongated cathode compartments between the casing and the cylindrical cathode inserted in the casing. Do axial extension. 10. The air controller according to item 8 in the scope of the patent application, further comprising a control circuit 'a micro-mechanical enclosure control circuit integrated into the micro-mechanical bellows to control the operation of the bellows; When the machine is in operation, and it does not use a bellows that can use battery power, when the air is moved at a flow rate of 75cc or south, the battery will produce 1 watt or higher power output. Page 27