JP6403091B2 - Battery system - Google Patents

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JP6403091B2
JP6403091B2 JP2014208464A JP2014208464A JP6403091B2 JP 6403091 B2 JP6403091 B2 JP 6403091B2 JP 2014208464 A JP2014208464 A JP 2014208464A JP 2014208464 A JP2014208464 A JP 2014208464A JP 6403091 B2 JP6403091 B2 JP 6403091B2
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battery
liquid
storage container
system according
unit
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JP2016081575A (en
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長山 森
森 長山
佐藤 文紀
文紀 佐藤
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日産自動車株式会社
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Description

  The present invention relates to a battery system. More specifically, the present invention relates to a battery system that is excellent in battery startability and can realize high battery capacity and high output.

  Conventionally, for the purpose of providing an air battery that is not easily poisoned by carbon dioxide in the air, a main body having a positive electrode catalyst and a negative electrode in a housing material, an electrolytic solution, an electrolytic solution tank, and an electrolytic solution A pump that circulates the gas, and an oxygen intake part in the middle of the circulation of the electrolyte, and a pipe that connects the main body part, the tank, the pump, and the oxygen intake part, and the oxygen selective permeable membrane is placed on the oxygen intake part. An air battery has been proposed (see Patent Document 1).

JP 2012-84261 A

  However, in the air battery described in Patent Document 1, the structure for circulation is complicated, and it is difficult to treat the oxidized precipitate. Therefore, the present inventors mainly examined reduction of the electrode interval for higher output, and provided a predetermined removal portion for removing the oxide precipitates, thereby not only increasing the output of the battery but also starting up the battery. New technical knowledge that it can improve the performance and increase the capacity.

  The present invention has been made based on such new technical knowledge. Then, an object of the present invention is to provide a battery system that is excellent in battery startability and can realize high battery capacity and high output.

  The present inventors have found that the above object can be achieved by providing a predetermined removal section for removing the oxidized precipitate, and have completed the present invention.

That is, the battery system of the present invention is configured to supply a liquid from a storage container to a battery via a predetermined storage container, a predetermined battery, a liquid flow path connecting the storage container and the battery, and the liquid flow path. A liquid supply unit to be performed and a removal unit to remove oxidation precipitates generated in the electrolyte solution storage unit, and the storage container and the battery are integrated or separated, and at least one of the storage container and the battery is a liquid flow The removal part has a liquid supply part including a liquid flow path connected to the bottom of the battery. The predetermined storage container stores at least one liquid of an electrolytic solution and a solvent for preparing the electrolytic solution. The predetermined battery includes a positive electrode, a negative electrode, and a frame member, and the positive electrode and the negative electrode have a structure facing each other through an electrolyte solution containing portion surrounded by the positive electrode, the negative electrode, and the frame member. And it is materialized by supplying at least one liquid of the solvent for preparing electrolyte solution to an electrolyte solution accommodating part. Furthermore, the predetermined battery has an electrode non-facing portion in which the positive electrode and the negative electrode are not opposed to each other at the upper part of the electrolytic solution housing portion, and the electrode non-facing portion is included in the removal portion.

According to the present invention, a storage container storing at least one of an electrolytic solution and a solvent for preparing the electrolytic solution, a positive electrode, a negative electrode, and a frame member are provided, and the positive electrode and the negative electrode are the positive electrode, the negative electrode, and the frame member. A battery formed by supplying at least one of an electrolyte solution and a solvent for preparing the electrolyte solution to the electrolyte solution storage unit, and a storage A liquid flow path connecting the container and the battery, a liquid supply section for supplying liquid from the storage container to the battery via the liquid flow path, and a removal section for removing oxide precipitates generated in the electrolyte storage section The storage container and the battery are integrated or separated, and at least one of the storage container and the battery has a liquid flow path, and the removal unit includes a liquid flow path connected to the bottom of the battery. having a liquid supply portion, the battery, the electrolyte Positive and negative electrodes on the top of the volume portion has an electrode non-facing portion not facing the electrode non-facing portion, and configured to be contained in the removed portion. Therefore, it is possible to provide a battery system that is excellent in battery startability and can realize a high capacity and high output of the battery.

FIG. 1 is a configuration diagram schematically showing the battery system according to the first embodiment. FIGS. 2A and 2B are explanatory views schematically showing an operation when supplying a liquid and an operation when recovering the liquid in the battery system according to the first embodiment. 3A to 3C are cross-sectional views schematically showing batteries according to examples 1-1 to 1-3. 4A to 4C are cross-sectional views schematically showing batteries according to examples 1-4 to 1-6. FIG. 5 is a configuration diagram schematically showing the battery system according to the second embodiment. FIG. 6 is an explanatory view schematically showing an operation when supplying or collecting a liquid in the battery system according to the second embodiment. FIG. 7 is a configuration diagram schematically showing a battery system according to the third embodiment. FIGS. 8A and 8B are explanatory diagrams schematically showing an operation when supplying a liquid and an operation when recovering the liquid in the battery system according to the third embodiment. FIG. 9 is a configuration diagram schematically showing a battery system according to the fourth embodiment. FIG. 10 is an explanatory diagram schematically showing an operation when supplying or collecting a liquid in the battery system according to the fourth embodiment. FIG. 11 is a configuration diagram schematically showing a battery system according to the fifth embodiment. FIGS. 12A and 12B are explanatory diagrams schematically showing an operation when supplying, collecting, or circulating a liquid in the battery system according to the fifth embodiment.

  Hereinafter, a battery system according to an embodiment of the present invention will be described in detail with reference to the drawings. In addition, the dimension ratio of drawing quoted with the following forms is exaggerated on account of description, and may differ from an actual ratio.

<First form>
First, the battery system according to the first embodiment will be described in detail with reference to the drawings. FIG. 1 is a schematic configuration diagram schematically showing the battery system according to the first embodiment. FIGS. 2A and 2B are explanatory diagrams schematically showing an operation when supplying liquid and an operation when collecting liquid in the battery system according to the first embodiment.

  As shown in FIGS. 1 and 2, the battery system 1 of this embodiment includes a cartridge type unit A, a battery control unit B, a liquid supply unit C, and a removal unit D.

  The cartridge type unit A includes the storage container 10 and a battery 20 that is an assembled battery including a plurality of cells, either integrally or separately, and either one or both of the storage container 10 and the battery 20 are connected to the storage container 10. A liquid flow path 30 that connects the battery 20 is provided. The battery 20 to be described in detail later includes a positive electrode, a negative electrode, and a frame member, and the positive electrode and the negative electrode are opposed to each other via an electrolyte solution containing portion surrounded by the positive electrode, the negative electrode, and the frame member. This is established by supplying at least one of the liquid and the solvent for preparing the electrolyte to the electrolyte container. In the present embodiment, the liquid flow path 30 is connected to the bottom of the battery 20 and the bottom of the storage container 10. Furthermore, in this embodiment, the liquid flow path 30 is enclosed in the storage container 10 and the battery 20, in other words, the liquid flow path 30 is formed inside the cartridge type unit A.

  Further, the battery control unit B includes a mounting unit 40 that can attach and detach the cartridge type unit A with the storage container 10 and the battery 20 integrated or separated. In this embodiment, the battery control unit B includes a motor 51 as the driving unit 50 of the liquid supply unit C.

  Further, the liquid supply unit C supplies liquid from the storage container 10 to the battery 20 via the liquid flow path 30. In this embodiment, the liquid supply unit C includes a motor 51, a rotor 52 </ b> A and a roller 52 </ b> B driven by the motor 51, a liquid flow path 30, and a tube pump 52 configured by the storage container 10. ing. Specifically, the tube portion 30A of the liquid flow path 30 is sandwiched between the storage container 10 functioning as a pump head and a roller 52B attached to a rotor 52A connected to a rotor (not shown) of the motor 51, As shown by the arrow X in FIG. 2A, the liquid is supplied from the storage container 10 to the battery 20 through the liquid flow path 30 when the rotor 52 </ b> A rotates counterclockwise. Further, in this embodiment, when the motor 51 as the drive unit 50 is driven in reverse, the rotor 52A rotates clockwise as indicated by the arrow Y in FIG. Accordingly, the liquid supply unit C recovers the liquid from the battery 20 to the storage container 10. Furthermore, although not shown, the electrolyte solution storage unit may have an air vent that can be opened and closed, for example. Further, when the battery is an air battery, a liquid-tight ventilation layer provided on the positive electrode can be used as an air vent.

  The removing unit D removes the oxide precipitates generated in the electrolytic solution storage unit, and has a liquid supply unit C including a liquid channel 30 connected to the bottom of the battery 20.

  As described above, it is possible to improve the startability, capacity, and output of the battery by adopting a configuration including a predetermined removing unit that removes the oxide precipitates. In other words, since the liquid flow path is connected to the bottom of the battery, the liquid supply unit is driven, so that the liquid is supplied from below to the oxide precipitates generated in the electrolyte container, and the oxide deposits are removed. It can function as a part. Oxidized precipitates are likely to rise due to heat generation during discharge and adhesion of hydrogen, and therefore, removal of the oxide precipitates is facilitated by supplying liquid from the bottom. It is also effective for removing hydrogen generated at the initial stage of liquid supply. As a result, the startability of the battery can be improved. In addition, since the size can be reduced, the capacity and the output can be improved.

  Further, by providing the drive unit in the battery control unit as in the battery system of this embodiment, it is not necessary to provide components such as a motor in an easy-to-handle cartridge type unit including a battery, and the number of components can be reduced. Therefore, it is possible to reduce the size, weight, and cost, and further, the structure that can easily replace the part that impedes the durability improvement can be easily replaced, so that the durability of the battery system itself can be improved. . In addition, there is an advantage that the liquid supply unit can freely supply and recover the liquid via the liquid flow path connected to the bottom of the battery, and the start / stop control is facilitated.

  In this embodiment, the case where an assembled battery made up of a plurality of cells is used as the battery has been described as an example, but the case where a single battery made up of one cell is used as the battery is included in the scope of the present invention. Needless to say.

  Further, in this embodiment, the case where the motor as the drive unit of the liquid supply unit is not provided in the cartridge type unit has been described as an example, but the case where the motor is provided in the cartridge type unit and no other parts are provided. Needless to say, it is included in the scope of the present invention. Of the components applied to the liquid supply unit, the motor as the drive unit is relatively large in volume and weight and high in cost, and therefore is preferably removed from the cartridge type unit.

  Furthermore, in this embodiment, the case where the liquid channel is connected to the bottom of the storage container has been described as an example. However, if the bottom of the battery and the storage container are connected by the liquid channel, the present invention will be described. Needless to say, it is included in the range. In addition, when the liquid flow path is connected to the bottom of the storage container, it is possible to prevent air in the storage container from entering when supplying the liquid from the storage container to the battery.

  Further, in the present embodiment, the case where the liquid channel is included in the storage container and the battery, in other words, the case where the liquid channel is formed inside the cartridge type unit has been described as an example. Needless to say, it is included in the scope of the present invention as long as the storage container and the storage container are connected by a liquid flow path. In addition, the liquid flow path is enclosed in the storage container and the battery, in other words, the liquid flow path is formed inside the cartridge type unit, so that a simple structure can be obtained and the liquid leakage resistance is improved. There is an advantage that it is easy to ensure.

  Furthermore, in this embodiment, it is preferable that the liquid exists only in the storage container when storing the battery. By setting it as such a structure, it can preserve | save for a long term, suppressing deterioration of a battery.

  Here, each configuration will be described in more detail.

  The storage container 10 is not particularly limited as long as it stores one or both of the electrolytic solution and the solvent for preparing the electrolytic solution.

  And as said electrolyte solution, what contains electrolyte support salt and the solvent which melt | dissolves this can be mentioned, for example. Examples of the electrolyte supporting salt include potassium chloride, sodium chloride, potassium hydroxide, and the like. Moreover, as a solvent, water, an organic solvent, etc. can be mentioned, for example. However, it is not limited to these, For example, it is preferable to apply the conventionally well-known electrolyte solution applied to an air battery, for example. An air battery has a high energy density per volume and a high capacity, and is suitable for mounting on a vehicle as an auxiliary battery. However, the type of battery is not limited to this, for example, an alkaline battery. Also good. Among air batteries, a salt water battery using a sodium chloride aqueous solution as an electrolyte is preferable from the viewpoint of easy handling. Further, when the liquid is a solvent, although not shown, a supporting salt for preparing the electrolytic solution may be held in advance in an electrolytic solution storage unit described later in detail, and is not shown. However, it is good also as a structure which has another storage container which stores support salt.

  The battery 20 includes a positive electrode, a negative electrode, and a frame member, and the positive electrode and the negative electrode are opposed to each other via an electrolyte container that is surrounded by the positive electrode, the negative electrode, and the frame member. There is no particular limitation as long as it is established by supplying at least one liquid of a solvent for preparing the liquid to the electrolytic solution storage unit. The battery may have, for example, a so-called single cell structure in which one positive electrode and one negative electrode face each other, and one negative electrode is disposed between two positive electrodes, and the positive electrode and the negative electrode It may have a so-called bicell structure having a structure in which and are opposed to each other.

  Here, some examples of the battery will be described. However, it goes without saying that the present invention is not limited thereto.

  3A to 3C are cross-sectional views schematically showing batteries according to examples 1-1 to 1-3. Specifically, FIG. 3A is a schematic cross-sectional view along the line ZZ of the battery shown in FIG. 3B and 3C are schematic cross-sectional views along a line at the same position as the ZZ line shown in FIG. As shown in FIGS. 3A to 3C, the battery (20, 20A, 20B) includes a frame member 21C, and a positive electrode 21A and a negative electrode 21B disposed on the back side and the front side of the frame member 21C. It has. In addition, the site | part enclosed with the broken line X in a figure shows the electrode opposing part to which the positive electrode 21A and the negative electrode 21B (electrode) are facing. The positive electrode 21A and the negative electrode 21B have a structure facing each other through an electrolyte solution containing portion 21a surrounded by the positive electrode 21A, the negative electrode 21B, and the frame member 21C. Moreover, the electrolyte solution inflow part 21b and the electrolyte solution discharge part 22c are connected to the electrolyte solution accommodating part 21a.

  As shown in FIG. 3A, in the battery 20 of Example 1-1, nothing is provided in the electrolyte container 21a. On the other hand, as shown in FIGS. 3B and 3C, in the batteries 20A and 20B of the first to second examples and the first to third examples, the electrolyte solution inflow portion 21b and the electrolyte solution in the electrolyte solution storage portion 21a. Between the discharge part 21c, the bias suppression structure member 22 which suppresses the bias | inclination of the flow of the electrolyte solution in the electrolyte solution accommodating part 21a is provided.

  In the batteries 20A and 20B of the first to second examples and the first to third examples, the in-cell pressure loss is increased and the flow deviation is suppressed, and the solid line arrow F indicates the configuration as described above. In addition, the flow of the electrolyte can be made faster. As a result, it is easier to remove oxide precipitates and the like generated by the reaction, and further improvement in startability, output, capacity, and the like can be achieved. In particular, when the distance between the electrodes is reduced in order to increase the output, it is preferable from the viewpoints of suppressing flow unevenness, removing oxide precipitates, preventing a short circuit described later, and the like. On the other hand, in the battery 20 of Example 1-1, the uneven flow cannot be eliminated, and the flow of the electrolyte cannot be accelerated as indicated by the dotted arrow S.

  Further, in the battery 20A of the first to second examples, the bias suppressing structure member 22 includes a plurality of columnar members. Even with such a configuration, uneven flow can be suppressed and the flow of the electrolyte can be made faster as indicated by the solid line arrow F. As a result, it is easy to remove oxide precipitates, and further improvement in startability, output, capacity, and the like can be achieved. Note that the plurality of columnar members includes a case where all of the plurality of columnar members are connected in part from the viewpoint of facilitating battery fabrication.

  On the other hand, in the battery 20B of the first to third examples, the bias suppressing structure member 22 is configured by a plurality of plate-like members. Even with such a configuration, uneven flow can be suppressed and the flow of the electrolyte can be made faster as indicated by the solid line arrow F. As a result, it is easier to remove the oxide precipitates, and further improvement in startability, output, capacity, and the like can be achieved. In addition, although not illustrated, it cannot be overemphasized that the case where the deviation suppression structure member is comprised from one plate-shaped member is contained in the scope of the present invention. Moreover, there is also an advantage that the bias suppressing structure member made of a plate-like member is easy to form.

  In this example, the plurality of plate-like members that are the bias suppressing structure member 22 are integrated with the frame member 21C. By adopting such a configuration, it is possible to easily manufacture the bias suppressing structure member, and it is possible to suppress the bias of the flow and to make the flow of the electrolyte faster as indicated by the solid arrow F. As a result, it is easier to remove the oxide precipitates, and further improvement in startability, output, capacity, and the like can be achieved. In addition, although not illustrated, it cannot be overemphasized that the case where the some plate-shaped member which is a bias | inclination suppression structure member is a different body from the frame member is included in the scope of the present invention.

  Further, in this example, the bias suppressing structure member 22 does not form a portion where the flow of the electrolytic solution branches in the electrolytic solution containing portion 21a. By adopting such a configuration, the pressure loss in the cell is further increased and the uneven flow is suppressed, and the flow of the electrolyte can be further accelerated as indicated by the solid arrow F. As a result, it is easier to remove the oxide precipitates, and further improvement in startability, output, capacity, and the like can be achieved.

  Moreover, as shown in FIGS. 3A to 3C, in the batteries of Examples 1-1 to 1-3, it is preferable that the outer shape of the electrolytic solution housing portion 21a is a plate shape. . By adopting such a configuration, uneven flow in the thickness direction of the plate-like shape is suppressed, and the flow of the electrolyte can be further accelerated as indicated by the solid line arrow F. In addition, although not illustrated, it cannot be overemphasized that the case where the external shape of electrolyte solution accommodating part is not plate-shaped is contained in the scope of the present invention.

  Furthermore, in the battery 20 that is an assembled battery in which a plurality of cells as shown in FIGS. 3A to 3C are stacked, one or both of the plurality of electrolyte inflow portions 21b and the plurality of electrolyte discharge portions 21c. However, it is preferable that each has a manifold structure extending in the plurality of frame members 21C of the assembled battery. With such a configuration, there is an advantage that the assembled battery can be easily manufactured and the liquid leakage resistance can be easily secured.

  Here, each configuration will be described in more detail.

  For example, when the battery is an air battery, the positive electrode 21A includes an oxygen redox catalyst and a conductive carrier that supports a catalyst that is added as necessary. it can. Although not shown, when the battery is an air battery, the positive electrode is liquid-tight such as a conductive water repellent layer that suppresses or prevents leakage of the electrolyte filled in the electrolyte container on the ventilation space side. It has a ventilation layer. The conductive water-repellent layer has liquid-tightness (for example, water-tightness) with respect to the electrolyte and air permeability, and suppresses or prevents the electrolyte from leaking to the outside, while supplying oxygen to the positive electrode For example, a material composed of a water-repellent porous resin such as a polyolefin resin such as polypropylene or polyethylene or a fluorine resin such as polytetrafluoroethylene and a conductive material such as graphite is preferably used. Can do.

  Examples of the catalyst include metal oxides such as manganese dioxide and tricobalt tetroxide, carbon (C), platinum (Pt), ruthenium (Ru), iridium (Ir), rhodium (Rh), and palladium. (Pd), osmium (Os), tungsten (W), lead (Pb), iron (Fe), chromium (Cr), cobalt (Co), nickel (Ni), manganese (Mn), vanadium (V), molybdenum It can be selected from metals such as (Mo), gallium (Ga), and aluminum (Al), alloys and oxides thereof.

  Further, the shape and size of the catalyst are not particularly limited, and the same shape and size as those of conventionally known catalysts can be adopted. However, the shape of the catalyst is preferably granular.

  Further, the carrier functions as a carrier for supporting the catalyst and as an electron conduction path involved in the transfer of electrons between the catalyst and other members. Any carrier may be used as long as it has a specific surface area for supporting the catalyst component in a desired dispersion state and sufficient electron conductivity, and the main component is preferably carbon. Specific examples of the carrier include carbon particles made of carbon black, activated carbon, coke, natural graphite, artificial graphite and the like.

  Further, the size of the carrier is not particularly limited, and the same size as a conventionally known carrier can be adopted.

  The types of the catalyst and the carrier supporting the catalyst are not limited to those described above, and it goes without saying that conventionally known materials applicable to air batteries can be used as appropriate. Yes.

  In addition, for the negative electrode 21B, for example, a single metal whose standard electrode potential is lower than that of hydrogen or an alloy containing these metals is preferably used. Examples of such a simple metal include zinc (Zn), iron (Fe), aluminum (Al), and magnesium (Mg). Examples of the alloy include those obtained by adding one or more metal elements or non-metal elements to these metal elements. Among them, those using light metals such as magnesium and aluminum are preferable, and those using magnesium are particularly preferable. However, it is not limited to these, For example, the conventionally well-known material applied to an air battery is applicable. Note that when a light metal having a relatively low specific gravity is applied, as will be described in detail later, it is preferable because the oxide precipitates are retained in the upper part of the electrolyte solution storage portion and can be easily recovered. In addition, when magnesium is applied, the amount of oxidized precipitates generated is large, so it is particularly effective to provide the removal portion as described above.

  Further, the frame member 21C is preferably made of an electrically insulating material such as resin. In addition, since the positive electrode 21A and the negative electrode 21B are opposed to each other so as to be opposed to each other, and the electrolyte solution storage portion 21a is formed between the positive electrode 21A and the negative electrode 21B, the liquid-tight property is obtained. It is preferable that

  Furthermore, the bias suppressing structure member 22 is preferably manufactured integrally with the frame member. Therefore, it is preferable to apply a material made of the same material as that of the frame member, but there is no particular limitation. Moreover, since it is arrange | positioned between a positive electrode and a negative electrode, it is preferable to apply what consists of an electrically insulating material from a viewpoint of a short circuit prevention.

  Next, FIGS. 4A to 4C are cross-sectional views schematically showing batteries according to examples 1-4 to 1-6. Specifically, FIGS. 4A to 4C are schematic cross-sectional views along a line at the same position as the ZZ line shown in FIG. In addition, about the thing equivalent to what was demonstrated in said example, the code | symbol same as them is attached | subjected and description is abbreviate | omitted. As shown in FIGS. 4A to 4C, the batteries (20C, 20D, and 20E) include a frame member 21C, and a positive electrode 21A and a negative electrode 21B that are disposed on the back side and the front side of the frame member 21C. It has. In addition, the site | part enclosed with the broken line X in a figure shows the electrode opposing part to which the positive electrode 21A and the negative electrode 21B (electrode) are facing. On the other hand, a part surrounded by a broken line Y in the figure shows an electrode non-facing portion where the positive electrode 21A and the negative electrode 21B (electrode) are not opposed. The positive electrode 21A and the negative electrode 21B have a structure facing each other through an electrolyte solution containing portion 21a surrounded by the positive electrode 21A, the negative electrode 21B, and the frame member 21C. Moreover, the electrolyte solution inflow part 21b and the electrolyte solution discharge part 22c are connected to the electrolyte solution accommodating part 21a.

  And as shown to FIG. 4 (A), in the battery 20C of the 1st-4th example, nothing is provided in the electrolyte solution accommodating part 21a. On the other hand, as shown in FIGS. 4B and 4C, in the batteries 20D and 20E of the first to fifth examples and the first to sixth examples, the electrolyte inflow portion 21b and the electrolyte solution in the electrolyte storage portion 21a. Between the discharge part 21c, the bias suppression structure member 22 which suppresses the bias | inclination of the flow of the electrolyte solution in the electrolyte solution accommodating part 21a is provided.

  In the batteries 20D and 20E of the first to fifth examples and the first to sixth examples, the flow deviation is suppressed and the flow of the electrolyte solution is further increased as indicated by the solid arrow F. Can be fast. As a result, it is easier to remove the oxide precipitates, and further improvement in startability, output, capacity, and the like can be achieved. On the other hand, in the battery 20C of the first to fourth examples, the uneven flow cannot be eliminated, and the flow of the electrolyte cannot be accelerated as shown by the dotted arrow S.

  Further, in the battery 20D of the first to fifth examples, the bias suppressing structure member 22 is composed of a plurality of columnar members. Even with such a configuration, uneven flow can be suppressed and the flow of the electrolyte can be made faster as indicated by the solid line arrow F. As a result, it is easier to remove the oxide precipitates, and further improvement in startability, output, capacity, and the like can be achieved. Note that the plurality of columnar members includes a case where all of the plurality of columnar members are connected in part from the viewpoint of facilitating battery fabrication.

  On the other hand, in the battery 20E of the first to sixth examples, the bias suppressing structure member 22 is composed of a plurality of plate-like members. Even with such a configuration, uneven flow can be suppressed and the flow of the electrolyte can be made faster as indicated by the solid line arrow F. As a result, it is easier to remove the oxide precipitates, and further improvement in startability, output, capacity, and the like can be achieved. In addition, although not illustrated, it cannot be overemphasized that the case where the deviation suppression structure member is comprised from one plate-shaped member is contained in the scope of the present invention.

  In this example, the plurality of plate-like members that are the bias suppressing structure member 22 are integrated with the frame member 21C. By adopting such a configuration, it is possible to easily manufacture the bias suppressing structure member, and it is possible to suppress the bias of the flow and to make the flow of the electrolyte faster as indicated by the solid arrow F. As a result, it is easier to remove the oxide precipitates, and further improvement in startability, output, capacity, and the like can be achieved. In addition, although not illustrated, it cannot be overemphasized that the case where the some plate-shaped member which is a bias | inclination suppression structure member is a different body from the frame member is included in the scope of the present invention.

  Further, in this example, the bias suppressing structure member 22 does not form a portion where the flow of the electrolytic solution branches in the electrolytic solution containing portion 21a. By adopting such a configuration, the pressure loss in the cell is further increased and the uneven flow is suppressed, and the flow of the electrolyte can be further accelerated as indicated by the solid arrow F. As a result, it is easier to remove the oxide precipitates, and further improvement in startability, output, capacity, and the like can be achieved.

  Moreover, as shown in FIGS. 4A to 4C, in the batteries of the first to fourth examples to the first to sixth examples, it is preferable that the outer shape of the electrolytic solution housing portion 21a is a plate shape. . By adopting such a configuration, uneven flow in the thickness direction of the plate-like shape is suppressed, and the flow of the electrolyte can be further accelerated as indicated by the solid line arrow F. In addition, although not illustrated, it cannot be overemphasized that the case where the external shape of electrolyte solution accommodating part is not plate-shaped is contained in the scope of the present invention.

  Furthermore, in the battery 20C or the like, which is an assembled battery in which a plurality of cells as shown in FIGS. 4A to 4C are stacked, one of the plurality of electrolyte inflow portions 21b and the plurality of electrolyte discharge portions 21c or It is preferable that both of them have manifold structures extending over the plurality of frame members 21C of the assembled battery. With such a configuration, there is an advantage that the assembled battery can be easily manufactured and the liquid leakage resistance can be easily secured.

  Further, as shown in FIGS. 4A to 4C, the batteries of the first to fourth examples to the first to sixth examples have the electrode non-facing portion Y described above at the upper part of the electrolytic solution housing portion. Such an electrode non-facing portion Y can function as a removing portion that removes oxide precipitates generated in the electrolytic solution housing portion. In other words, the oxide precipitates are likely to rise due to heat generated during discharge and adhesion of hydrogen, so that the raised oxide precipitates accumulate on the upper part of the electrolytic solution storage part, but an electrode non-opposing part is provided on the upper part. Thus, the influence can be reduced and the performance of the battery can be stabilized.

<Second form>
Next, the battery system according to the second embodiment will be described in detail with reference to the drawings. In addition, about the thing equivalent to what was demonstrated in said form, the code | symbol same as them is attached | subjected and description is abbreviate | omitted. FIG. 5 is a schematic configuration diagram schematically showing the battery system according to the second embodiment. Moreover, FIG. 6 is explanatory drawing which shows typically the operation | movement at the time of performing supply or collection | recovery of the liquid in the battery system which concerns on a 2nd form.

  As shown in FIGS. 5 and 6, the battery system 1 </ b> A of the present embodiment includes a cartridge type unit A, a battery control unit B, a liquid supply unit C, and a removal unit D.

  The cartridge type unit A includes the storage container 10 and a battery 20 that is an assembled battery including a plurality of cells, either integrally or separately, and either one or both of the storage container 10 and the battery 20 are connected to the storage container 10. A liquid flow path 30 that connects the battery 20 is provided. In addition, as the battery 20, the thing of each example explained in full detail above is applicable. In the present embodiment, the liquid flow path 30 is connected to the bottom of the battery 20 and the bottom of the storage container 10. Furthermore, in this embodiment, a pump head 31 is connected to the liquid flow path 30. In this embodiment, the liquid flow path 30 is enclosed in the storage container 10 and the battery 20, in other words, the liquid flow path 30 is formed inside the cartridge type unit A.

  Further, the battery control unit B includes a mounting unit 40 that can attach and detach the cartridge type unit A with the storage container 10 and the battery 20 integrated or separated. In this embodiment, the battery control unit B includes a motor 51 as the driving unit 50 of the liquid supply unit C. The motor 51 has a gear 53.

  Further, the liquid supply unit C supplies liquid from the storage container 10 to the battery 20 via the liquid flow path 30. In the present embodiment, the liquid supply unit C includes a motor 51, a pump head 31 driven by the motor 51, and a liquid flow path 30. Specifically, as shown in FIG. 6, when the cartridge type unit A is mounted on the mounting portion 40, the pump head 31 is driven by the motor 51 via the gear 53 or vice versa. When the pump head 31 is driven by the motor 51 via the gear 53 or vice versa, the liquid is supplied from the storage container 10 to the battery 20 or from the battery 20 to the storage container 10 via the liquid flow path 30. The liquid is collected by the liquid supply unit C. Furthermore, although not shown, the electrolyte solution storage unit may have an air vent that can be opened and closed, for example. Further, when the battery is an air battery, a liquid-tight ventilation layer provided on the positive electrode can be used as an air vent.

  The removing unit D removes the oxide precipitates generated in the electrolytic solution storage unit, and has a liquid supply unit C including a liquid channel 30 connected to the bottom of the battery 20.

  As described above, it is possible to improve the startability, capacity, and output of the battery by adopting a configuration including a predetermined removing unit that removes the oxide precipitates. In other words, since the liquid flow path is connected to the bottom of the battery, the liquid supply unit is driven, so that the liquid is supplied from below to the oxide precipitates generated in the electrolyte container, and the oxide deposits are removed. It can function as a part. Oxidized precipitates are likely to rise due to heat generation during discharge and adhesion of hydrogen, and therefore, removal of the oxide precipitates is facilitated by supplying liquid from the bottom. It is also effective for removing hydrogen generated at the initial stage of liquid supply. As a result, the startability of the battery can be improved. In addition, since the size can be reduced, the capacity and the output can be improved.

  Further, by providing the drive unit in the battery control unit as in the battery system of this embodiment, it is not necessary to provide components such as a motor in an easy-to-handle cartridge type unit including a battery, and the number of components can be reduced. Therefore, it is possible to reduce the size, weight, and cost, and further, the structure that can easily replace the part that impedes the durability improvement can be easily replaced, so that the durability of the battery system itself can be improved. . In addition, there is an advantage that the liquid supply unit can freely supply and recover the liquid via the liquid flow path connected to the bottom of the battery, and the start / stop control is facilitated.

  In this embodiment, the case where an assembled battery made up of a plurality of cells is used as the battery has been described as an example, but the case where a single battery made up of one cell is used as the battery is included in the scope of the present invention. Needless to say.

  Further, in this embodiment, the case where the motor as the drive unit of the liquid supply unit is not provided in the cartridge type unit has been described as an example, but the case where the motor is provided in the cartridge type unit and no other parts are provided. Needless to say, it is included in the scope of the present invention. Of the components applied to the liquid supply unit, the motor as the drive unit is relatively large in volume and weight and high in cost, and therefore is preferably removed from the cartridge type unit.

  Furthermore, in this embodiment, the case where the liquid channel is connected to the bottom of the storage container has been described as an example. However, if the bottom of the battery and the storage container are connected by the liquid channel, the present invention will be described. Needless to say, it is included in the range. In addition, when the liquid flow path is connected to the bottom of the storage container, it is possible to prevent air in the storage container from entering when supplying the liquid from the storage container to the battery.

  Further, in the present embodiment, the case where the liquid channel is included in the storage container and the battery, in other words, the case where the liquid channel is formed inside the cartridge type unit has been described as an example. Needless to say, it is included in the scope of the present invention as long as the storage container and the storage container are connected by a liquid flow path. In addition, the liquid flow path is enclosed in the storage container and the battery, in other words, the liquid flow path is formed inside the cartridge type unit, so that a simple structure can be obtained and the liquid leakage resistance is improved. There is an advantage that it is easy to ensure.

  Furthermore, in this embodiment, it is preferable that the liquid exists only in the storage container when storing the battery. By setting it as such a structure, it can preserve | save for a long term, suppressing deterioration of a battery.

<Third embodiment>
Next, a battery system according to a third embodiment will be described in detail with reference to the drawings. In addition, about the thing equivalent to what was demonstrated in said form, the code | symbol same as them is attached | subjected and description is abbreviate | omitted. FIG. 7 is a schematic configuration diagram schematically showing the battery system according to the third embodiment. FIGS. 8A and 8B are explanatory diagrams schematically showing an operation when supplying liquid and an operation when collecting liquid in the battery system according to the third embodiment.

  As shown in FIGS. 7 and 8, the battery system 1 </ b> B of the present embodiment includes a cartridge type unit A, a battery control unit B, a liquid supply unit C, and a removal unit D.

  The cartridge type unit A includes the storage container 10 and a battery 20 that is an assembled battery including a plurality of cells, either integrally or separately, and either one or both of the storage container 10 and the battery 20 are connected to the storage container 10. A liquid flow path 30 that connects the battery 20 is provided. In addition, as the battery 20, the thing of each example explained in full detail above is applicable. In the present embodiment, the liquid flow path 30 is connected to the bottom of the battery 20 and the bottom of the storage container 10. Furthermore, in this embodiment, the liquid flow path 30 is enclosed in the storage container 10 and the battery 20, in other words, the liquid flow path 30 is formed inside the cartridge type unit A.

  Further, the battery control unit B includes a mounting unit 40 that can attach and detach the cartridge type unit A with the storage container 10 and the battery 20 integrated or separated. In this embodiment, the battery control unit B includes an actuator 54A as the drive unit 50 of the liquid supply unit C. The actuator 54A has a plate member 54B.

  Further, the liquid supply unit C supplies liquid from the storage container 10 to the battery 20 via the liquid flow path 30. In the present embodiment, the liquid supply unit C includes the actuator 54A, the plate member 54B, and the liquid flow path 30. Specifically, as indicated by an arrow X in FIG. 8A, the actuator 54A extends upward, whereby the storage container 10 is compressed and deformed, and the storage container 10 is separated from the storage container 10 via the liquid channel 30. The liquid is supplied to the battery 20. Further, in this embodiment, the actuator 54A as the driving unit 50 is driven in reverse, in other words, the storage container 10 expands by contracting downward as indicated by the arrow Y in FIG. 8B. The liquid supply unit C recovers the liquid from the battery 20 to the storage container 10 via the liquid flow path 30. Furthermore, although not shown, the electrolyte solution storage unit may have an air vent that can be opened and closed, for example. Further, when the battery is an air battery, a liquid-tight ventilation layer provided on the positive electrode can be used as an air vent.

  The removing unit D removes the oxide precipitates generated in the electrolytic solution storage unit, and has a liquid supply unit C including a liquid channel 30 connected to the bottom of the battery 20.

  As described above, it is possible to improve the startability, capacity, and output of the battery by adopting a configuration including a predetermined removing unit that removes the oxide precipitates. In other words, since the liquid flow path is connected to the bottom of the battery, the liquid supply unit is driven, so that the liquid is supplied from below to the oxide precipitates generated in the electrolyte container, and the oxide deposits are removed. It can function as a part. Oxidized precipitates are likely to rise due to heat generation during discharge and adhesion of hydrogen, and therefore, removal of the oxide precipitates is facilitated by supplying liquid from the bottom. It is also effective for removing hydrogen generated at the initial stage of liquid supply. As a result, the startability of the battery can be improved. In addition, since the size can be reduced, the capacity and the output can be improved.

  Further, by providing the drive unit in the battery control unit as in the battery system of the present embodiment, it is not necessary to provide components such as an actuator in an easy-to-handle cartridge type unit including a battery, and the number of components can be reduced. Therefore, it is possible to reduce the size, weight, and cost, and further, the structure that can easily replace the part that impedes the durability improvement can be easily replaced, so that the durability of the battery system itself can be improved. . In addition, there is an advantage that the liquid supply unit can freely supply and recover the liquid via the liquid flow path connected to the bottom of the battery, and the start / stop control is facilitated.

  In this embodiment, the case where an assembled battery made up of a plurality of cells is used as the battery has been described as an example, but the case where a single battery made up of one cell is used as the battery is included in the scope of the present invention. Needless to say.

  Further, in this embodiment, the case where the actuator as the driving unit of the liquid supply unit is not provided in the cartridge type unit has been described as an example, but the case where the actuator is provided in the cartridge type unit and other components are not provided. Needless to say, it is included in the scope of the present invention. Of the components applied to the liquid supply unit, the actuator as the drive unit is relatively expensive, and therefore it is preferable to remove it from the cartridge type unit.

  Furthermore, in this embodiment, the case where the liquid channel is connected to the bottom of the storage container has been described as an example. However, if the bottom of the battery and the storage container are connected by the liquid channel, the present invention will be described. Needless to say, it is included in the range. In addition, when the liquid flow path is connected to the bottom of the storage container, it is possible to prevent air in the storage container from entering when supplying the liquid from the storage container to the battery.

  Further, in the present embodiment, the case where the liquid channel is included in the storage container and the battery, in other words, the case where the liquid channel is formed inside the cartridge type unit has been described as an example. Needless to say, it is included in the scope of the present invention as long as the storage container and the storage container are connected by a liquid flow path. In addition, the liquid flow path is enclosed in the storage container and the battery, in other words, the liquid flow path is formed inside the cartridge type unit, so that a simple structure can be obtained and the liquid leakage resistance is improved. There is an advantage that it is easy to ensure.

  Furthermore, in this embodiment, it is preferable that the liquid exists only in the storage container when storing the battery. By setting it as such a structure, it can preserve | save for a long term, suppressing deterioration of a battery.

<4th form>
Next, a battery system according to a fourth embodiment will be described in detail with reference to the drawings. In addition, about the thing equivalent to what was demonstrated in said form, the code | symbol same as them is attached | subjected and description is abbreviate | omitted. FIG. 9 is a schematic configuration diagram schematically showing the battery system according to the fourth embodiment. Moreover, FIG. 10 is explanatory drawing which shows typically the operation | movement at the time of performing supply or collection | recovery of the liquid in the battery system which concerns on a 4th form.

  As shown in FIGS. 9 and 10, the battery system 1 </ b> C of this embodiment includes a cartridge type unit A, a battery control unit B, a liquid supply unit C, and a removal unit D.

  The cartridge type unit A includes the storage container 10 and a battery 20 that is an assembled battery including a plurality of cells, either integrally or separately, and either one or both of the storage container 10 and the battery 20 are connected to the storage container 10. A liquid flow path 30 that connects the battery 20 is provided. In addition, as the battery 20, the thing of each example explained in full detail above is applicable. Moreover, in this form, the storage container 10 has the air pump insertion part 10a. Furthermore, in this embodiment, the liquid flow path 30 is connected to the bottom of the battery 20 and the bottom of the storage container 10. In this embodiment, the liquid flow path 30 is enclosed in the storage container 10 and the battery 20, in other words, the liquid flow path 30 is formed inside the cartridge type unit A.

  Further, the battery control unit B includes a mounting unit 40 that can attach and detach the cartridge type unit A with the storage container 10 and the battery 20 integrated or separated. In this embodiment, the battery control unit B includes an air pump 55A as the driving unit 50 of the liquid supply unit C. The air pump 55A has a connection portion 55B connected to the air pump insertion portion 10a.

  Further, the liquid supply unit C supplies liquid from the storage container 10 to the battery 20 via the liquid flow path 30. In the present embodiment, the liquid supply part C includes an air pump 55A, a connection part 55B, and the liquid flow path 30. Specifically, as shown in FIG. 10, when the cartridge type unit A is attached to the attachment portion 40, the connection portion 55B is inserted into the air pump insertion portion 10a, and the air pump 55A is driven or reversed. Driven to increase or decrease the internal pressure of the storage container 10 by an air pump, supply of liquid from the storage container 10 to the battery 20 or supply of liquid from the battery 20 to the storage container 10 via the liquid flow path 30. Recovery is performed by the liquid supply unit C. Furthermore, although not shown, the electrolyte solution storage unit may have an air vent that can be opened and closed, for example. Further, when the battery is an air battery, a liquid-tight ventilation layer provided on the positive electrode can be used as an air vent.

  The removing unit D removes the oxide precipitates generated in the electrolytic solution storage unit, and has a liquid supply unit C including a liquid channel 30 connected to the bottom of the battery 20.

  As described above, it is possible to improve the startability, capacity, and output of the battery by adopting a configuration including a predetermined removing unit that removes the oxide precipitates. In other words, since the liquid flow path is connected to the bottom of the battery, the liquid supply unit is driven, so that the liquid is supplied from below to the oxide precipitates generated in the electrolyte container, and the oxide deposits are removed. It can function as a part. Oxidized precipitates are likely to rise due to heat generation during discharge and adhesion of hydrogen, and therefore, removal of the oxide precipitates is facilitated by supplying liquid from the bottom. It is also effective for removing hydrogen generated at the initial stage of liquid supply. As a result, the startability of the battery can be improved. In addition, since the size can be reduced, the capacity and the output can be improved.

  And by providing the drive unit in the battery control unit as in the battery system of this embodiment, it is not necessary to provide components such as an air pump in a cartridge type unit that includes batteries, and the number of components is reduced. Therefore, it is possible to reduce the size, weight, and cost, and the structure that can easily replace the part that impedes the durability improvement can be easily replaced, so that the durability of the battery system itself can be improved. it can. In addition, there is an advantage that the liquid supply unit can freely supply and recover the liquid via the liquid flow path connected to the bottom of the battery, and the start / stop control is facilitated.

  In this embodiment, the case where an assembled battery made up of a plurality of cells is used as the battery has been described as an example, but the case where a single battery made up of one cell is used as the battery is included in the scope of the present invention. Needless to say.

  In this embodiment, the case where the cartridge type unit is not provided with the air pump as the drive unit of the liquid supply unit has been described as an example, but the case where the cartridge type unit is provided with an air pump and no other parts are provided. However, it goes without saying that it is included in the scope of the present invention. Of the components applied to the liquid supply unit, the air pump as the drive unit is relatively large in volume and weight and high in cost, and thus is preferably removed from the cartridge type unit.

  Furthermore, in this embodiment, the case where the liquid channel is connected to the bottom of the storage container has been described as an example. However, if the bottom of the battery and the storage container are connected by the liquid channel, the present invention will be described. Needless to say, it is included in the range. In addition, when the liquid flow path is connected to the bottom of the storage container, it is possible to prevent air in the storage container from entering when supplying the liquid from the storage container to the battery.

  Further, in the present embodiment, the case where the liquid channel is included in the storage container and the battery, in other words, the case where the liquid channel is formed inside the cartridge type unit has been described as an example. Needless to say, it is included in the scope of the present invention as long as the storage container and the storage container are connected by a liquid flow path. In addition, the liquid flow path is enclosed in the storage container and the battery, in other words, the liquid flow path is formed inside the cartridge type unit, so that a simple structure can be obtained and the liquid leakage resistance is improved. There is an advantage that it is easy to ensure.

  Furthermore, in this embodiment, it is preferable that the liquid exists only in the storage container when storing the battery. By setting it as such a structure, it can preserve | save for a long term, suppressing deterioration of a battery.

<5th form>
Next, a battery system according to a fifth embodiment will be described in detail with reference to the drawings. FIG. 11 is a schematic configuration diagram schematically showing a battery system according to the fifth embodiment. FIGS. 12A and 12B are explanatory views schematically showing operations when supplying, collecting, or circulating a liquid in the battery system according to the fifth embodiment.

  As shown in FIGS. 11 and 12, the battery system 1D of the present embodiment includes a cartridge type unit A, a battery control unit B, a liquid supply unit C, and a removal unit D.

  The cartridge type unit A includes the storage container 10 and a battery 20 that is an assembled battery including a plurality of cells, either integrally or separately, and either one or both of the storage container 10 and the battery 20 are connected to the storage container 10. A plurality of liquid flow paths 30 and 32 that connect the battery 20 are provided. In addition, as the battery 20, the thing of each example explained in full detail above is applicable. In the present embodiment, the liquid flow path 30 is connected to the bottom of the battery 20 and the bottom of the storage container 10. Furthermore, in this embodiment, the liquid flow path 32 is connected to the upper part of the battery 20 and the upper part of the storage container 10. In this embodiment, the liquid flow paths 30 and 32 are enclosed in the storage container 10 and the battery 20, in other words, the liquid flow paths 30 and 32 are formed inside the cartridge type unit A. Furthermore, in this embodiment, the liquid flow path 32 and the storage container 10 have filters 61 and 62 therein.

  Further, the battery control unit B includes a mounting unit 40 that can attach and detach the cartridge type unit A with the storage container 10 and the battery 20 integrated or separated. In this embodiment, the battery control unit B includes a motor 51 as the driving unit 50 of the liquid supply unit C.

  Further, the liquid supply unit C supplies, recovers, or circulates the liquid between the storage container 10 and the battery 20 via the liquid flow paths 30 and 32. In this embodiment, the liquid supply unit C includes a motor 51, a tube pump 52 including a rotor 52A and a roller 52B driven by the motor 51, the liquid flow path 30, and the storage container 10, and a liquid. And a flow path 32. Specifically, the tube portion 30A of the liquid flow path 30 is sandwiched between the storage container 10 functioning as a pump head and a roller 52B attached to a rotor 52A connected to a rotor (not shown) of the motor 51, As indicated by an arrow X in FIG. 12A, the liquid is supplied from the storage container 10 to the battery 20 through the liquid flow path 30 when the rotor 52 </ b> A rotates counterclockwise. In addition, when the liquid level of the electrolytic solution in the battery 20 reaches the upper end of the liquid channel 32, the liquid is recovered from the battery 20 to the storage container 10 through the liquid channel 32, and electrolysis is performed as a whole. Liquid circulation takes place. In this embodiment, when the motor 51 as the driving unit 50 is driven in the reverse direction, the rotor 52A rotates clockwise as indicated by the arrow Y in FIG. Thus, the liquid is collected from the battery 20 to the storage container 10, the liquid is supplied from the storage container 10 to the battery 20 through the liquid flow path 32, and the electrolyte is circulated as a whole. It can also be configured.

  The removing unit D removes the oxide precipitates generated in the electrolytic solution storage unit, and has a liquid supply unit C including a liquid channel 30 connected to the bottom of the battery 20.

  As described above, it is possible to improve the startability, capacity, and output of the battery by adopting a configuration including a predetermined removing unit that removes the oxide precipitates. In other words, since the liquid flow path is connected to the bottom of the battery, the liquid supply unit is driven, so that the liquid is supplied from below to the oxide precipitates generated in the electrolyte container, and the oxide deposits are removed. It can function as a part. Oxidized precipitates are likely to rise due to heat generation during discharge and adhesion of hydrogen, and therefore, removal of the oxide precipitates is facilitated by supplying liquid from the bottom. It is also effective for removing hydrogen generated at the initial stage of liquid supply. As a result, the startability of the battery can be improved. In addition, since the size can be reduced, the capacity and the output can be improved. Further, the electrolytic solution can be circulated.

  Further, by providing the drive unit in the battery control unit as in the battery system of this embodiment, it is not necessary to provide components such as a motor in an easy-to-handle cartridge type unit including a battery, and the number of components can be reduced. Therefore, it is possible to reduce the size, weight, and cost, and further, the structure that can easily replace the part that impedes the durability improvement can be easily replaced, so that the durability of the battery system itself can be improved. . In addition, there is an advantage that the liquid supply unit can freely supply and recover the liquid via the liquid flow path connected to the bottom of the battery, and the start / stop control is facilitated.

  In this embodiment, the case where an assembled battery made up of a plurality of cells is used as the battery has been described as an example, but the case where a single battery made up of one cell is used as the battery is included in the scope of the present invention. Needless to say.

  Further, in this embodiment, the case where the motor as the drive unit of the liquid supply unit is not provided in the cartridge type unit has been described as an example, but the case where the motor is provided in the cartridge type unit and no other parts are provided. Needless to say, it is included in the scope of the present invention. Of the components applied to the liquid supply unit, the motor as the drive unit is relatively large in volume and weight and high in cost, and therefore is preferably removed from the cartridge type unit.

  Furthermore, in this embodiment, the case where the liquid channel is connected to the bottom of the storage container has been described as an example. However, if the bottom of the battery and the storage container are connected by the liquid channel, the present invention will be described. Needless to say, it is included in the range. In addition, when the liquid flow path is connected to the bottom of the storage container, it is possible to prevent air in the storage container from entering when supplying the liquid from the storage container to the battery.

  Further, in the present embodiment, the case where the liquid channel is included in the storage container and the battery, in other words, the case where the liquid channel is formed inside the cartridge type unit has been described as an example. Needless to say, it is included in the scope of the present invention as long as the storage container and the storage container are connected by a liquid flow path. In addition, the liquid flow path is enclosed in the storage container and the battery, in other words, the liquid flow path is formed inside the cartridge type unit, so that a simple structure can be obtained and the liquid leakage resistance is improved. There is an advantage that it is easy to ensure.

  Furthermore, in the present embodiment, the case where the liquid flow path is connected to the upper part of the battery, in other words, the upper part of the electrolyte container and the upper part of the storage container has been described as an example. If it is connected by a plurality of liquid channels, the electrolyte solution can be circulated. An oxide precipitate that may stay in the upper part of the electrolytic solution storage part by connecting the liquid flow path to the upper part of the battery, in other words, the electrode non-opposing part that is an example of the upper part of the electrolytic solution storage part. Can be recovered by overflow. Further, the liquid level in the electrolytic solution storage part can be maintained at a certain height or less without particularly controlling. On the other hand, since the liquid flow path is connected to the upper portion of the storage container, air can be released even if the internal pressure of the storage container is increased, thereby enabling smooth circulation. On the other hand, when the liquid flow channel on the side corresponding to the liquid flow channel 32 is connected to the bottom of the battery, for example, when the liquid flow channel 32 has the same length as the filter 61, the oxidized precipitate that is precipitated is efficiently Can be removed well.

  Further, in the present embodiment, the case where the liquid flow path and the storage container have a filter inside them is described as an example, but the liquid flow path and the storage container do not have a filter inside. Needless to say, a case where the filter is provided inside one of the liquid flow path and the storage container is included in the scope of the present invention. In addition, by having a filter inside one or both of the liquid flow path and the storage container, all or a part of the oxide precipitates can be removed by the liquid flow path or the storage container. Moreover, removal capability can also be improved by providing a filter in the storage container with relatively large volume.

  Furthermore, in this embodiment, it is preferable that the liquid exists only in the storage container when storing the battery. By setting it as such a structure, it can preserve | save for a long term, suppressing deterioration of a battery.

  As mentioned above, although this invention was demonstrated with some forms and examples, this invention is not limited to these, A various deformation | transformation is possible within the range of the summary of this invention.

For example, the configuration described in each form or example described above is not limited to each form or example, and the configuration of each form is changed, or the configuration of each form is combined with a combination other than each of the above forms. be able to.
In addition, for example, the liquid supply unit provided with the tube pump has been described as the one that supplies, recovers, or circulates the liquid. However, the present invention is not limited to this example. A pump head connected to the liquid flow path, an actuator, or an air pump can also be applied.
When applying the liquid supply unit equipped with the actuator to circulate the electrolyte, for example, a plurality of liquid flow paths are provided with valves (not shown) for controlling the flow of the electrolyte, and are adjusted to the timing when the actuator is extended or contracted. The two valves may be opened and closed alternately.
In addition, when circulating an electrolytic solution by applying an apparatus equipped with an air pump, for example, a plurality of liquid flow paths are provided with a valve (not shown) that controls the flow of the electrolytic solution, and the internal pressure is increased by the air pump. In combination, the two valves may be alternately opened and closed.

DESCRIPTION OF SYMBOLS 1,1A-1D Battery system 10 Storage container 10a Air pump insertion part 20, 20A-20E Battery 21A Positive electrode 21B Negative electrode 21C Frame member 21a Electrolyte accommodating part 21b Electrolyte inflow part 21c Electrolyte discharge part 22 Bias suppression structure member 30, 32 Liquid channel 30A Tube portion 31 Pump head 40 Mounting portion 50 Drive portion 51 Motor 52 Tube pump 52A Rotor 52B Roller 53 Gear 54A Actuator 54B Plate member 55A Air pump 55B Connection portion 61, 62 Filter A Cartridge type unit B Battery control portion C Liquid supply part D Removal part X Electrode facing part Y Electrode non-facing part

Claims (12)

  1. A storage container for storing at least one of an electrolyte and a solvent for preparing the electrolyte; and
    A positive electrode, a negative electrode, and a frame member, wherein the positive electrode and the negative electrode are opposed to each other via an electrolyte solution storage portion surrounded by the positive electrode, the negative electrode, and the frame member, A battery formed by supplying at least one liquid of a solvent for preparing a liquid to the electrolytic solution container;
    A liquid flow path connecting the storage container and the battery;
    A liquid supply unit that supplies liquid from the storage container to the battery via the liquid channel;
    A removal unit that removes the oxide precipitate generated in the electrolyte solution storage unit,
    Including the storage container and the battery integrally or separately;
    At least one of the storage container and the battery has the liquid channel,
    The removal unit has the liquid supply unit including the liquid channel connected to the bottom of the battery ,
    The battery has an electrode non-opposing portion where the positive electrode and the negative electrode are not opposed to each other above the electrolyte housing portion,
    The battery system , wherein the electrode non-facing portion is included in the removal portion .
  2.   The battery system according to claim 1, wherein the liquid channel is connected to a bottom portion of the storage container.
  3. A plurality of the liquid channels are provided,
    3. The battery system according to claim 1 , wherein the liquid supply unit circulates the liquid between the storage container and the battery via the liquid channel.
  4. The battery system according to claim 3 , wherein one of the liquid flow paths is connected to the electrode non-opposing portion of the battery.
  5. The battery system according to claim 4 , wherein the liquid channel connected to the electrode non-opposing portion of the battery is connected to an upper portion of the storage container.
  6. The battery system according to claim 3, wherein one of the liquid channels has a filter therein.
  7. The battery system according to any one of claims 3 to 6 , wherein the storage container has a filter therein.
  8. The battery system according to any one of claims 1 to 7 , wherein the negative electrode is applied with a light metal.
  9. The battery system according to claim 8 , wherein the light metal is magnesium.
  10. The battery system according to any one of claims 1 to 9, wherein the liquid flow path is formed inside a cartridge type unit including the storage container and the battery.
  11. The battery system according to claim 10 , wherein the storage container and the battery are integrally or separately included, and have a cartridge structure that can be inserted and removed as an integral or separate body.
  12. The battery according to any one of claims 1 to 11 , wherein the battery is an air battery.
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JP2010170819A (en) * 2009-01-22 2010-08-05 Equos Research Co Ltd Air battery system
JP2013149452A (en) * 2012-01-19 2013-08-01 Nissan Motor Co Ltd Air battery
JP6036409B2 (en) * 2012-03-08 2016-11-30 日産自動車株式会社 Assembled battery
US9742048B2 (en) * 2013-03-25 2017-08-22 Sharp Kabushiki Kaisha Metal-air battery
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