WO2016075819A1 - バッテリ及びバッテリシステム - Google Patents
バッテリ及びバッテリシステム Download PDFInfo
- Publication number
- WO2016075819A1 WO2016075819A1 PCT/JP2014/080232 JP2014080232W WO2016075819A1 WO 2016075819 A1 WO2016075819 A1 WO 2016075819A1 JP 2014080232 W JP2014080232 W JP 2014080232W WO 2016075819 A1 WO2016075819 A1 WO 2016075819A1
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- WIPO (PCT)
- Prior art keywords
- battery
- electrode
- device side
- recess
- loaded
- Prior art date
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/46—Accumulators structurally combined with charging apparatus
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/05—Circuit arrangements or systems for wireless supply or distribution of electric power using capacitive coupling
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
- H02J7/0045—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the batteries
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00681—Aspects not otherwise provided for
- A61B2017/00734—Aspects not otherwise provided for battery operated
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
- H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
- H01M50/227—Organic material
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/10—The network having a local or delimited stationary reach
- H02J2310/20—The network being internal to a load
- H02J2310/23—The load being a medical device, a medical implant, or a life supporting device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a battery and a battery system.
- a typical battery includes a battery cell that can be charged and discharged, and a conductive terminal that is electrically connected to an external charger, medical device, or the like (see, for example, Patent Document 1).
- the battery terminal and a conductive terminal provided in a charger or the like are brought into contact with each other to electrically connect them.
- Patent Document 1 The battery unit described in Patent Document 1 is complicated to handle such as care must be taken not to wet the terminals with water since the conductive terminals are exposed on the outer surface. Further, in order to bring the battery terminal into contact with the terminal provided on the charger or the like, it is necessary to load the battery charger or the like in a predetermined direction, and the handling is complicated also in this respect.
- an object of the present invention is to provide a battery and a battery system that are easy to handle.
- a first aspect of the present invention includes a battery cell that can be charged and discharged, a first electrode and a second electrode that are connected to the battery cell and electrically connected to an external electrode in a non-contact state, and the battery A switching unit that is provided in a battery circuit including a cell, the first electrode, and the second electrode, and switches a current flowing in the battery circuit to an alternating current or a direct current; the battery cell, the first electrode, and the second electrode And an insulating housing that houses the switching unit therein.
- a battery according to the present invention a recess in which the battery is loaded, a connection device side first electrode and a connection device side second disposed inside the recess along the inner surface of the recess.
- the first electrode and the second electrode face the connection device side first electrode and the connection device side second electrode so as to be capacitively coupled.
- the battery of the present invention is configured such that the conductive members such as terminals are not exposed on the outer surface, the battery is easy to handle.
- the battery system of the present invention is easy to handle during charging and discharging.
- FIG. 1 is a perspective view showing a battery 1 of the present embodiment.
- the battery 1 includes an insulating casing 10 that constitutes an outer surface of the battery 1, and a first electrode 21 and a second electrode 22 disposed in the casing 10.
- the housing 10 is made of an insulating material.
- a resin is suitable.
- polycarbonate, fluororesin, PEEK (polyether ether ketone) or the like can be used as the material.
- the dielectric constant of the insulating material forming the housing 10 is preferably 2 or more.
- FIG. 2 is a cross-sectional view of the battery 1 and shows a state viewed from the right side surface 13 shown in FIG.
- a battery cell 23 that can be charged and discharged
- a switching unit 24 that is electrically connected to the battery cell 23, the first electrode 21, and the second electrode 22.
- the 1st electrode 21, the 2nd electrode 22, the battery cell 23, and the switch part 24 are connected by the wiring 25, and form the battery circuit.
- the switching unit 24 has two functions. One of the functions is to switch between alternating current and direct current flowing through the battery circuit, and the other is to switch between discharging the alternating current outside the battery or charging the battery cell with the direct current.
- a direct current flows from the switching unit 24 to the battery cell 23 side, an alternating current flows from the first electrode 21 and the second electrode 22 side, and the discharge and charge modes are switched.
- it can be used as a disposable battery capable of only discharging.
- the battery cell 23 only needs to be able to be charged and discharged.
- battery cells having various known structures such as lithium ion battery cells can be appropriately selected and used.
- the first electrode 21 and the second electrode 22 are formed in a planar shape with a conductor, and are arranged symmetrically along the front surface 11 and the back surface 12 of the housing 10, respectively. Examples of the material for forming the first electrode 21 and the second electrode 22 include metal foil.
- the switching unit 24 is not particularly limited as long as it has a DC / AC conversion function, and a known converter circuit or the like can be appropriately selected in consideration of the size of the battery 1 or the like.
- the battery 1 is configured such that the entire outer surface is covered with the insulating casing 10 and no conductive members such as terminals and electrodes are exposed to the outer surface.
- FIG. 3 shows a battery system 2 including a battery 1 and a charger (connecting device) 100 for charging the battery 1.
- the charger 100 has a recess 101 that can accommodate the battery 1, and is formed so that the entire outer surface of the charger 100 including the recess 101 is covered with an insulating material such as resin.
- FIG. 4 is a diagram schematically showing a cross section of the charger 100.
- the charger 100 includes a planar first power transmission electrode (connected device side first electrode) 102 and a second power transmission electrode (connected device side second electrode) 103.
- the 1st power transmission electrode 102 and the 2nd power transmission electrode 103 are arrange
- FIG. 5 is a circuit diagram showing a state in which the battery 1 is loaded in the recess 101 as described above.
- the opposing electrodes are capacitively coupled (electric field coupling) in a non-contact state and charged with the battery 1.
- a circuit is formed that includes the device 100.
- reference numeral 104 indicates a power supply circuit
- reference numeral 105 indicates a power transmission circuit for adjusting the mode of current transmitted from the charger 100 to the battery 1.
- a high-frequency alternating current is supplied from the charger 100 in a state where the above-described circuit is formed, power can be transmitted to the battery 1 via the capacitively coupled electrodes.
- the battery cell 23 can be charged by converting the alternating current sent from the charger 100 into a direct current by the switching unit 24.
- the alternating current is supplied from the charger 100, as long as the first power transmission electrode 102 and the second power transmission electrode 103 are opposed to the first electrode 21 and the second electrode 22, the individual electrodes
- the correspondence is not a problem, and charging can be performed in any correspondence. That is, the first electrode 21 may be disposed to face the first power transmission electrode 102 or may be disposed to face the second power transmission electrode 103.
- the casing 10 of the battery 1 has a front surface 11 and a rear surface 12 formed in a rectangular parallelepiped shape. Since the front surface 11 and the back surface 12 are figures having rotational symmetry, the shape of the battery 1 is the same regardless of the posture in which any of the four surfaces except the front surface 11 and the back surface 12 is up. Furthermore, the shape does not change regardless of which of the front surface 11 and the rear surface 12 is in front. Therefore, as long as the battery 1 is loaded in the recess 101, the first power transmission electrode 102 and the second power transmission electrode 103, and the first electrode 21 and the second electrode 22 always face each other regardless of the orientation. It can be performed.
- FIG. 6 shows a grasping forceps 200 that is a treatment instrument including a rigid insertion portion 201 and a treatment portion 202 provided at a distal end portion of the insertion portion 201 as an example of a discharge device.
- the target discharge device is not limited to a treatment instrument, and any device that is energized and used can be applied without particular limitation.
- the handle 203 of the grasping forceps 200 is provided with a recess 204 for housing the battery 1.
- the shape of the recess 204 may be the same as that of the recess 101 of the charger 100.
- the grasping forceps 200 includes a pair of electrodes for receiving power, that is, a first power receiving electrode (connected device side first electrode) and a second power receiving electrode (connected device side second electrode).
- the first power receiving electrode and the second power receiving electrode are arranged along two opposing surfaces of the inner surface of the recess 204 so as not to be exposed to the outside. That is, the pair of electrodes for receiving power is housed inside the grasping forceps 200.
- FIG. 7 is a circuit diagram of a circuit formed when the battery 1 is discharged with respect to the grasping forceps 200.
- the first power receiving electrode 211 and the second power receiving electrode 212, and the first electrode 21 and the second electrode 22 face each other so that the facing electrodes are capacitively coupled to each other as in charging.
- a direct current extracted from the battery cell 23 is converted into an alternating current by the switching unit 24 and transmitted to the grasping forceps 200.
- the alternating current supplied from the battery 1 is appropriately adjusted by the power receiving circuit 205 and supplied to the treatment unit 202 as a load.
- the gripping forceps 200 can be discharged regardless of the direction, as in the case of charging. That is, as shown in FIG. 8, the battery 1 may be loaded in the recess 204 in the same posture as shown in FIG. 2, or upside down from the posture of FIG. 8, as shown in FIG. The battery 1 may be loaded in the recess 204 in the posture. Furthermore, even if the battery 1 is loaded in the recess 204 in the posture shown in FIGS. 8 and 9 with the front surface 11 and the back surface 12 reversed, the discharge from the battery 1 to the grasping forceps 200 is possible.
- the supplied alternating current may be used as it is by adjusting only the voltage, current value, and the like by the power receiving circuit 205.
- a converter circuit or the like may be provided as appropriate in the power receiving circuit 205 so that the supplied alternating current can be converted into a direct current.
- the battery 1 of the present embodiment can be electrically connected to a connection device such as a charger or a medical device without using a conductive terminal such as a metal. Accordingly, while the entire outer surface is covered with the insulating casing 10, it is possible to perform power reception and power transmission with the connected device, and can be suitably used as a battery. However, unlike a normal battery, the input to the battery 1 and the output from the battery 1 are all alternating.
- the frequency as the alternating current is preferably a high frequency band of about 100 kHz to 1 GHz.
- the battery 1 is formed of a conductor such as a terminal and is exposed on the outer surface, and does not have a portion connected to the internal mechanism by a conductor such as a wiring, so be careful not to wet the terminal, for example. There is no need to do so, and handling is easy.
- the degree of freedom of loading into the connection device can be set high.
- the first electrode and the second electrode of the loaded battery and the connection device are provided among the postures of the battery that can be loaded into the recess of the connection device.
- the posture in which the connected device-side first electrode and the connected device-side second electrode face each other and become capable of capacitive coupling is defined as a “power transmission / reception posture”.
- all the postures that can be loaded in the recesses of the connected device are power transmission / reception postures, and there are a total of eight power transmission / reception postures.
- the outer shape of the battery 1 substantially determined by the shape of the housing 10, the shape of the recessed portion of the connection device, the arrangement of the first electrode 21 and the second electrode 22, and the arrangement of the electrode of the connection device It is possible to set the power transmission / reception posture to an arbitrary number of 2 or more by appropriately changing.
- the 1st electrode 21 and the 2nd electrode 22 are arrange
- FIG. 11 is a cross-sectional view of the battery 51.
- the first electrode 21 and the second electrode 22 provided in two are respectively connected by a wiring 25 and have the same potential (the same voltage and the same phase).
- the connecting device connected to the battery 51 is also connected to the connecting device side along each of the two surfaces facing the front surface 11 and the back surface 12 when the battery 51 is accommodated, of the inner surface of the recess.
- the first electrode and the connected device side second electrode are arranged in advance.
- the battery 51 of the present embodiment is very easy to handle and can constitute a battery system with a high degree of freedom in loading into a connected device.
- the battery 51 is placed in the front-rear direction (the front surface 11 and the rear surface 12, In the other direction, the distance between the electrodes facing each other becomes longer, but the distance between the electrodes facing each other becomes shorter. Therefore, the combined capacity of the capacitor established between the battery 51 and the connected device is unlikely to change, and in the circuit formed by the battery 51 and the connected device, the capacitance stability of the capacitor is greatly improved and control is easy. become.
- the battery 51 may have the first electrode 21 and the second electrode 22 connected to the connected device side first depending on the loading posture of the connected device and the arrangement of the connected device side first electrode and the connected device side second electrode. It may face both the electrode and the connected device side second electrode. Note that power transmission / reception cannot be performed in such a posture, and therefore the number of power transmission / reception postures may be smaller than that of battery 1.
- the first electrode 21 and the second electrode 22 may be provided only on one of the front and back surfaces of the battery.
- the connected device side first electrode and the connected device side second electrode may be arranged only on one of the two surfaces facing the front surface 11 and the back surface 12 when the battery 51 is accommodated.
- the battery 51A of the modified example shown in FIG. 12 has a square columnar outer shape with a square bottom surface, and the first electrode 21 and the second electrode 22 are along the four outer peripheral surfaces 52, 53, 54, 55, respectively. Has been placed. Since the first electrodes 21 and the second electrodes 22 on the outer peripheral surfaces are connected to each other, the first electrode 21 and the second electrode 22 are arranged on the outer peripheral surface of the battery 51A over the entire periphery. It has a structure.
- the battery 51A has such a structure, when the battery 51A is loaded in the recess, power can be transmitted to and received from the connected device even if the battery 51A is loaded without considering the relative positional relationship with the connected device in the direction around the axis X1 of the quadrangular prism. Is possible.
- the battery 51A is accommodated in the recess without considering the positional relationship with the connection device in the circumferential direction (direction around the axis of the cylinder) when accommodated in the recess of the connection device. Even power transmission and reception is possible. In this case, there are innumerable power transmission / reception postures in the battery system.
- the outer shape of the battery is not limited to that described above, and may be formed in any manner as long as it can be accommodated in the recess of the connected device and has two or more power transmission / reception postures.
- the battery to be loaded into the charger 100 shown in FIG. 3 has no limitation on the shape of the front and back surfaces of the housing as long as it can be loaded in the recess 101. May be different.
- the shape of the surface to be capacitively coupled may be different between the battery and the connected device.
- the shape and size of the battery-side electrode and the connected device-side electrode that are capacitively coupled may be different.
- the external shape of the battery and the shape of the recess need not be exactly the same. Therefore, when the battery is loaded into the recess, even if a part of the battery protrudes from the recess or a space remains in the recess, the battery-side electrode and the connected device-side electrode can be capacitively coupled. If it faces, it functions as a battery system without a problem.
- the outer shape of the battery is not limited to one whose outer surface is configured only by a flat surface. Therefore, it may be a cylindrical shape as described above, an elliptical column shape with elliptical surfaces on both sides in the axial direction, or a polygonal column shape with rounded corners and ridge lines, such as the battery 61 shown in FIG.
- the first electrode and the second electrode it is not always necessary to arrange the first electrode and the second electrode in parallel with the major and minor axes of the elliptical surfaces on both sides in the axial direction of the elliptical cylinder.
- the short axis XS and the long axis XL may be arranged to face each other in a non-parallel direction.
- the outer shape of the battery 71 is a cube, and the first electrodes 21 are arranged on three surfaces shown in FIG. 15 adjacent to each other. The remaining three surfaces not shown in FIG. 15 are provided with second electrodes 22, respectively, and the battery 71 includes three first electrodes 21 and three second electrodes 22.
- a connection device of the battery 71 a device having a cubic concave portion and having a connection device-side first electrode and a connection device-side second electrode arranged on a pair of opposing surfaces of the inner surface of the recess is prepared.
- one of the three first electrodes 21 is always connected to the connected device side first electrode and the connected device regardless of the posture of the battery 71.
- One of the second second electrodes 22 faces one of the second second electrodes 22 and the other of the connected device side first electrode and the other of the connected device side second electrode. Therefore, in this battery system, there are 24 possible power transmission / reception postures, and usability can be significantly improved.
- switching between charging and discharging by the switching unit may be automatically performed by identifying a device to which a battery is connected, or a configuration in which a user specifies a switching mode. Good.
- a switch for switching may be provided on the outer surface of the battery.
- the present invention can be applied to a battery and a battery system including the battery and a connected device.
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Abstract
Description
その際、一般的には単位質量あたりのエネルギー密度が高いリチウムイオンバッテリが活用されることが予想される。
また、バッテリの端子と充電器等に設けられた端子等を接触させるためには、充電器等に所定の向きで装填する必要があり、この点でも取り扱いが煩雑である。
本発明のバッテリシステムは、充電時や放電時の取り扱いが容易である。
図1は、本実施形態のバッテリ1を示す斜視図である。バッテリ1は、自身の外面を構成する絶縁性の筐体10と、筐体10内に配置された第一電極21及び第二電極22とを備えている。
切替部24には、機能が二つある。機能の一つはこのバッテリ回路内を流れる電流の交流/直流を切り替えること、もう一つは交流電流をバッテリ外に放電するか、直流電流によりバッテリセルを充電するかを切り替えることである 。これにより、切替部24よりバッテリセル23側は直流電流が流れ、第一電極21及び第二電極22側は交流電流が流れ、放電と充電のモードが切り替えられる。
なお、充放電のモード切り替え機能を有さなくても、例えば放電のみ可能なディスポーザブルのバッテリとして使用可能である。
第一電極21及び第二電極22は、導体で面状に形成されており、それぞれ筐体10の正面11および背面12に沿うように対称配置されている。第一電極21及び第二電極22を形成する材料としては、例えば金属箔等を挙げることができる。
切替部24については、DC/AC変換機能を有するものであれば特に制限はなく、バッテリ1のサイズ等を考慮して公知のコンバータ回路等を適宜選択することができる。
上記のような構成により、バッテリ1は、外面全体を絶縁性の筐体10が覆い、端子や電極等の導電性部材が一切外面に露出しないように構成されている。
図3には、バッテリ1と、バッテリ1を充電するための充電器(接続機器)100とを備えたバッテリシステム2を示している。充電器100はバッテリ1を収容可能な凹部101を有しており、凹部101を含めた充電器100の外面全体が樹脂等の絶縁性の材料で覆われるように形成されている。
図4は、充電器100の断面を模式的に示す図である。充電器100は、面状の第一送電電極(接続機器側第一電極)102及び第二送電電極(接続機器側第二電極)103を備えている。第一送電電極102及び第二送電電極103は、凹部101の内面のうち、対向する二面に沿い、かつ露出しないように配置されている。
図5は、バッテリ1が上述のように凹部101内に装填された状態を示す回路図である。第一送電電極102及び第二送電電極103と、第一電極21及び第二電極22とが対向することにより、対向する電極どうしが非接触状態で容量結合(電界結合)されてバッテリ1と充電器100とを含む回路が形成される。筐体10の厚みは、上述の容量結合が可能となるように予め設定しておく。図5において、符号104で示すのは電源回路であり、符号105で示すのは充電器100からバッテリ1へ送電する電流の態様を調節するための送電回路である。
上述の回路が形成された状態で、充電器100から高周波の交流電流を供給すると、容量結合された電極を経由してバッテリ1に送電することができる。充電器100から送られた交流電流を切替部24により直流電流に変換することで、バッテリセル23を充電することができる。
すなわち、図8に示すように、図2に示したのと同一の姿勢でバッテリ1が凹部204に装填されてもよいし、図9に示すように、図8の姿勢から上下を逆にした姿勢でバッテリ1が凹部204に装填されてもよい。さらに、図8及び図9に示した姿勢から、正面11と背面12とを逆にした姿勢でバッテリ1が凹部204に装填されても、バッテリ1から把持鉗子200への放電が可能である。
本発明では、バッテリと少なくとも一つの接続機器とを備えるバッテリシステムにおいて、接続機器の凹部に装填可能なバッテリの姿勢のうち、装填されたバッテリの第一電極及び第二電極と、接続機器に設けられた接続機器側第一電極及び接続機器側第二電極とが対向し、容量結合が可能な状態となる姿勢を、「送受電可能姿勢」と定義する。上述したバッテリシステム2では、説明したように、接続機器の凹部に装填可能な姿勢はすべて送受電可能姿勢となっており、計8つの送受電可能姿勢を有している。
図示を省略するが、バッテリ51と接続される接続機器についても、凹部の内面のうち、バッテリ51が収容される際に正面11及び背面12と対向する二つの面それぞれに沿って、接続機器側第一電極及び接続機器側第二電極を配置しておく。
また、正面11及び背面12のそれぞれに、第一電極21及び第二電極22が設けられているため、接続機器に装填された際に凹部内でバッテリ51が前後方向(正面11と背面12とを結ぶ方向)に移動した場合、正面11及び背面12の一方で対向する電極間の距離が長くなるが、他方では対向する電極間の距離が短くなる。したがって、バッテリ51と接続機器との間で確立されるキャパシタの合成容量は変化しにくく、バッテリ51と接続機器とで形成される回路において、キャパシタの容量安定性が格段に向上して制御が容易になる。その結果、より安定した充放電を行うことができる。
ただし、バッテリ51は、接続機器への装填の姿勢や接続機器側第一電極及び接続機器側第二電極の配置態様等によっては、第一電極21及び第二電極22が、接続機器側第一電極及び接続機器側第二電極の両方と対向することがある。このような姿勢では送受電は行えないため、バッテリ1よりも送受電可能姿勢の数が少なくなることがある点に留意する。
例えば、図3で示した充電器100に装填するバッテリとしては、凹部101に装填可能である限り、筐体の正面及び背面の形状に何ら制限はなく、正面と背面とで面の形状や大きさが異なっていても構わない。また、容量結合される面の形状がバッテリと接続機器とで異なっていても構わない。
また、容量結合されるバッテリ側の電極と接続機器側の電極とで形状や大きさが異なっていても構わない。
バッテリ71の接続機器として、立方体状の凹部を有し、凹部内面のうち、対向する一対の面にそれぞれ接続機器側第一電極及び接続機器側第二電極を配置したものを準備する。このような構成のバッテリシステムにおいて、バッテリ71を凹部に装填すると、バッテリ71をどのような姿勢で装填しても、必ず三つの第一電極21のうち一つが接続機器側第一電極及び接続機器側第二電極の一方と対向し、かつ三つの第二電極22のうち一つが接続機器側第一電極及び接続機器側第二電極の他方と対向する。したがって、このバッテリシステムでは、送受電可能姿勢は24通り存在し、使用性を著しく向上させることができる。
2 バッテリシステム
10 筐体
21 第一電極
22 第二電極
23 バッテリセル
24 切替部
100 充電器(接続機器)
101 凹部
102 第一送電電極(接続機器側第一電極)
103 第二送電電極(接続機器側第二電極)
200 把持鉗子(接続機器)
204 凹部
211 第一受電電極(接続機器側第一電極)
212 第二受電電極(接続機器側第二電極)
Claims (6)
- 充電及び放電可能なバッテリセルと、
前記バッテリセルに接続され、外部の電極と非接触状態で電気的に接続される第一電極及び第二電極と、
前記バッテリセルと前記第一電極及び前記第二電極を含むバッテリ回路内に設けられ、前記バッテリ回路内に流れる電流を交流または直流に切り替える切替部と、
前記バッテリセル、前記第一電極、前記第二電極、及び前記切替部を内部に収容する絶縁性の筐体と、
を備えるバッテリ。 - 前記第一電極及び前記第二電極は、前記筐体に設定される所定の軸線に対して対称となるように配置されている、請求項1に記載のバッテリ。
- 前記切替部は、充電または放電のモードを切り替える、
請求項1または2に記載のバッテリ。 - 請求項1から3のいずれか一項に記載のバッテリと、
前記バッテリが装填される凹部と、自身の内部に前記凹部の内面に沿って配置された接続機器側第一電極及び接続機器側第二電極を有する接続機器と、
を備え、
前記バッテリを前記凹部に装填すると、前記第一電極及び前記第二電極が、前記接続機器側第一電極及び前記接続機器側第二電極と容量結合可能に対向する、バッテリシステム。 - 前記バッテリは、複数の姿勢で前記凹部に装填可能であり、前記バッテリが前記凹部に装填されたときに前記第一電極及び前記第二電極が前記接続機器側第一電極及び前記接続機器側第二電極と容量結合可能に対向する送受電可能姿勢を2以上有する、請求項4に記載のバッテリシステム。
- 前記バッテリは、前記第一電極を2以上有し、前記送受電可能姿勢において、前記第一電極の少なくとも一つが前記接続機器側第一電極及び前記接続機器側第二電極の一方と容量結合可能に対向する、請求項5に記載のバッテリシステム。
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PCT/JP2014/080232 WO2016075819A1 (ja) | 2014-11-14 | 2014-11-14 | バッテリ及びバッテリシステム |
CN201480083272.0A CN107078242A (zh) | 2014-11-14 | 2014-11-14 | 电池和电池系统 |
DE112014006997.3T DE112014006997T5 (de) | 2014-11-14 | 2014-11-14 | Batterie und Batteriesystem |
JP2016558833A JPWO2016075819A1 (ja) | 2014-11-14 | 2014-11-14 | バッテリ及びバッテリシステム |
US15/467,487 US20170194667A1 (en) | 2014-11-14 | 2017-03-23 | Battery and battery system |
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PCT/JP2014/080232 WO2016075819A1 (ja) | 2014-11-14 | 2014-11-14 | バッテリ及びバッテリシステム |
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US15/467,487 Continuation US20170194667A1 (en) | 2014-11-14 | 2017-03-23 | Battery and battery system |
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US (1) | US20170194667A1 (ja) |
JP (1) | JPWO2016075819A1 (ja) |
CN (1) | CN107078242A (ja) |
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JP2019213427A (ja) * | 2018-06-08 | 2019-12-12 | 福井県 | 脱着容易な高電圧対応のコネクタを備えたバッテリー装置 |
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WO2022008631A1 (en) * | 2020-07-08 | 2022-01-13 | Danmarks Tekniske Universitet | Capacitive power transfer for space sensitive electronic devices |
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2014
- 2014-11-14 CN CN201480083272.0A patent/CN107078242A/zh active Pending
- 2014-11-14 DE DE112014006997.3T patent/DE112014006997T5/de not_active Withdrawn
- 2014-11-14 WO PCT/JP2014/080232 patent/WO2016075819A1/ja active Application Filing
- 2014-11-14 JP JP2016558833A patent/JPWO2016075819A1/ja active Pending
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2017
- 2017-03-23 US US15/467,487 patent/US20170194667A1/en not_active Abandoned
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US20170194667A1 (en) | 2017-07-06 |
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