JP6409481B2 - Battery system - Google Patents

Description

  The present invention relates to a battery system. More specifically, the present invention relates to a battery system capable of realizing a reduction in size, weight and cost of a cartridge type unit including a battery and improvement in durability of the battery system itself.

  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 precipitates, so that the main body of the air battery cannot be easily removed. Therefore, the present inventors examined the reduction in size and weight of the cartridge type unit including the battery, and the reduction in cost. By reducing the size and weight of the cartridge type unit including the battery, the cost can be reduced. We obtained new technical knowledge that the durability of the battery system itself can be improved.

  The present invention has been made based on such new technical knowledge. An object of the present invention is to provide a battery system capable of realizing a reduction in size, weight and cost of a cartridge type unit including a battery and improvement in durability of the battery system itself.

  The present invention achieves the above object by including a predetermined cartridge type unit, a battery control unit including a mounting unit capable of attaching / detaching the predetermined cartridge type unit, and a predetermined liquid supply unit. The present inventors have found that this can be done and have completed the present invention.

That is, the battery system of the present invention includes an electrolytic solution and a storage container that stores at least one liquid of a solvent for preparing the electrolytic solution, and a battery that is established by supplying the liquid, either integrally or separately. A battery system comprising: a cartridge type unit including at least one of a storage container and a battery including a liquid flow path connecting the storage container and the battery; and a battery control unit including a mounting unit capable of attaching / detaching the cartridge type unit. there, through the liquid flow path, seen including a liquid supply portion for supplying liquid from the reservoir to the battery, the battery control unit is provided with a driving portion of the liquid supply portion, the driving portion is a motor Further, the liquid supply unit is provided with a tube pump driven by a motor, or the liquid supply unit is connected to a liquid flow path and a pump head driven by a motor is provided. It is Eteiru thing.

According to the present invention, a storage container that stores at least one liquid of an electrolytic solution and a solvent for preparing the electrolytic solution, and a battery that is established by supplying the liquid are integrally or separately, and the storage container and At least one of the batteries includes a cartridge type unit provided with a liquid channel connecting the storage container and the battery, and a battery control unit provided with a mounting part capable of attaching and detaching the cartridge type unit. Te, saw including a liquid supply portion for supplying liquid from the reservoir to the battery, the battery control unit is provided with a driving portion of the liquid supply portion, the driving portion is a motor, further, the supply unit is a liquid A tube pump driven by a motor is provided, or a liquid supply unit is connected to a liquid flow path and includes a pump head driven by a motor . Therefore, it is possible to provide a battery system that can realize a reduction in size, weight and cost of a cartridge type unit including a battery and improvement in durability of the battery system itself.

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 first to third examples. 4A to 4C are cross-sectional views schematically showing batteries according to fourth to sixth examples. 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 liquid and an operation when collecting liquid in the battery system according to the fifth embodiment. FIG. 13 is a configuration diagram schematically showing the battery system according to the sixth embodiment. FIG. 14 is an explanatory view schematically showing an operation when supplying or collecting a liquid in the battery system according to the sixth embodiment. FIG. 15 is a configuration diagram schematically showing a battery system according to the seventh embodiment. FIGS. 16A and 16B 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 seventh embodiment. FIG. 17 is a configuration diagram schematically showing the battery system according to the eighth embodiment. FIG. 18 is an explanatory diagram schematically showing an operation when supplying or collecting a liquid in the battery system according to the eighth 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 the present embodiment includes a cartridge type unit A, a battery control unit B, and a liquid supply unit C.

  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 this embodiment, the liquid channel 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 section B includes a mounting section 40 that can mount and demount the cartridge type unit A. 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.

  By adopting such a configuration, for example, in a cartridge type unit including a battery, it is not necessary to provide components such as a motor, and the number of components can be reduced. In addition, since the structure that can easily replace the part that hinders the improvement of durability, 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 the present embodiment, the case where the liquid flow path is connected to the bottom of the battery and the bottom of the storage container has been described as an example, but if the battery and the storage container are connected by the liquid flow path, Needless to say, it is included in the scope of the present invention. Since the liquid channel is connected to the bottom of the battery, the liquid channel and the liquid supply unit cooperate to function as a removing unit that removes oxide deposits that can be generated in the electrolyte storage unit. Can be made. In other words, the oxide 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 a liquid from the bottom. It is also effective for removing hydrogen generated at the initial stage of liquid supply. As a result, output can be improved. Further, since 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 this 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. It goes without saying that the container is included in the scope of the present invention as long as it is connected to the container by a liquid channel. In addition, there is an advantage that liquid resistance is easily ensured by adopting a configuration in which the liquid flow path is included in the storage container and the battery, in other words, the liquid flow path is formed inside the cartridge type unit.

  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 is not particularly limited as long as it is established by supplying the electrolytic solution and at least one liquid of a solvent for preparing the electrolytic solution 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 first to third examples. 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.

  And as shown to FIG. 3 (A), in the battery 20 of the 1st example, nothing is provided in the electrolyte solution accommodating part 21a. On the other hand, as shown in FIGS. 3B and 3C, in the batteries 20A and 20B of the second example and the third example, the electrolyte inflow part 21b and the electrolyte discharge part 21c In the meantime, the bias suppressing structure member 22 that suppresses the bias of the flow of the electrolyte in the electrolyte container 21a is provided.

  In the batteries 20A and 20B of the second example and the third example, the pressure loss in the cell is increased and the uneven flow is suppressed, and the electrolyte solution as shown by the solid arrow F is provided. The flow can be made faster. As a result, there are advantages such that it is easy to remove oxide precipitates that may be generated by the reaction, and output can be improved. In particular, reducing the distance between the electrodes in order to increase the output is preferable from the viewpoints of suppressing flow unevenness, removing oxide precipitates, and preventing a short circuit to be described later. On the other hand, in the battery 20 of the first example, 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 second example, 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, there are advantages such as easy removal of oxide precipitates and improvement in output. 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 third example, 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, there are advantages such as easy removal of oxide precipitates and improvement in output. 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, there are advantages such as easy removal of oxide precipitates and improvement in output. 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, there are advantages such that it is easier to remove the oxide precipitates and the output can be further improved.

  In addition, as shown in FIGS. 3A to 3C, in the batteries of the first to third examples, it is preferable that the outer shape of the electrolyte solution containing 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, both the plurality of electrolyte inflow portions 21b and the plurality of electrolyte discharge portions 21c are It is preferable that each has a manifold structure 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.

  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, and therefore it is particularly effective to provide a removal section described later in detail.

  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 fourth to sixth examples. 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 a 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 fifth example and the sixth example, the electrolyte inflow part 21b and the electrolyte discharge part 21c In the meantime, the bias suppressing structure member 22 that suppresses the bias of the flow of the electrolyte in the electrolyte container 21a is provided.

  In the batteries 20D and 20E of the fifth example and the sixth example, the flow deviation is suppressed and the flow of the electrolyte can be made faster as indicated by the solid line arrow F because of the configuration as described above. it can. As a result, there are advantages such as easy removal of oxide precipitates and improvement in output. On the other hand, in the battery 20C of the fourth example, 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 20D of the fifth example, 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, there are advantages such as easy removal of oxide precipitates and improvement in output. 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 sixth example, 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, there are advantages such as easy removal of oxide precipitates and improvement in output. 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, there are advantages such as easy removal of oxide precipitates and improvement in output. 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, uneven flow can be suppressed and the flow of the electrolyte can be further accelerated as indicated by a solid arrow F. As a result, there are advantages such as easy removal of oxide precipitates and improvement in output.

  Moreover, as shown to FIG. 4 (A)-(C), in the battery of the 4th example-the 6th example, it is suitable that the external shape of the electrolyte solution accommodating part 21a is 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. 4A to 4C are stacked, both the plurality of electrolyte inflow portions 21b and the plurality of electrolyte discharge portions 21c are It is preferable that each has a manifold structure 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 fourth to sixth examples have the electrode non-facing portion Y described above at the upper part of the electrolyte solution storage portion. Such an electrode non-facing portion Y can function as a removing portion that removes oxide precipitates that can be 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 this embodiment includes a cartridge type unit A, a battery control unit B, and a liquid supply unit C.

  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 this embodiment, a pump head 31 is connected to the liquid flow path 30. 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 section B includes a mounting section 40 that can mount and demount the cartridge type unit A. 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.

  By adopting such a configuration, for example, in a cartridge type unit including a battery, it is not necessary to provide components such as a motor, and the number of components can be reduced. In addition, since the structure that can easily replace the part that hinders the improvement of durability, 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 the present embodiment, the case where the liquid flow path is connected to the bottom of the battery and the bottom of the storage container has been described as an example, but if the battery and the storage container are connected by the liquid flow path, Needless to say, it is included in the scope of the present invention. Since the liquid channel is connected to the bottom of the battery, the liquid channel and the liquid supply unit cooperate to function as a removing unit that removes oxide deposits that can be generated in the electrolyte storage unit. Can be made. In other words, the oxide 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 a liquid from the bottom. It is also effective for removing hydrogen generated at the initial stage of liquid supply. As a result, output can be improved. Further, since 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 this 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. It goes without saying that the container is included in the scope of the present invention as long as it is connected to the container by a liquid channel. In addition, there is an advantage that liquid resistance is easily ensured by adopting a configuration in which the liquid flow path is included in the storage container and the battery, in other words, the liquid flow path is formed inside the cartridge type unit.

  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, and a liquid supply unit C.

  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 section B includes a mounting section 40 that can mount and demount the cartridge type unit A. 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 an actuator 54A and a plate member 54B. 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.

  By adopting such a configuration, for example, in a cartridge type unit including a battery, it is not necessary to provide a part such as an actuator, and the number of parts can be reduced, so that the cartridge type unit can be reduced in size, weight, and cost. In addition, since the structure that can easily replace the part that hinders the improvement of durability, 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 the present embodiment, the case where the liquid flow path is connected to the bottom of the battery and the bottom of the storage container has been described as an example, but if the battery and the storage container are connected by the liquid flow path, Needless to say, it is included in the scope of the present invention. Since the liquid channel is connected to the bottom of the battery, the liquid channel and the liquid supply unit cooperate to function as a removing unit that removes oxide deposits that can be generated in the electrolyte storage unit. Can be made. In other words, the oxide 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 a liquid from the bottom. It is also effective for removing hydrogen generated at the initial stage of liquid supply. As a result, output can be improved. Further, since 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 this 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. It goes without saying that the container is included in the scope of the present invention as long as it is connected to the container by a liquid channel. In addition, there is an advantage that liquid resistance is easily ensured by adopting a configuration in which the liquid flow path is included in the storage container and the battery, in other words, the liquid flow path is formed inside the cartridge type unit.

  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, and a liquid supply unit C.

  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 section B includes a mounting section 40 that can mount and demount the cartridge type unit A. 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 unit C includes an air pump 55A and a connection unit 55B. 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.

  By adopting such a configuration, for example, in a cartridge type unit including a battery, it is not necessary to provide components such as an air pump, and the number of components can be reduced. Therefore, the cartridge type unit can be reduced in size, weight, and cost. In addition, since the structure that can easily replace the part that hinders the improvement of durability, 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.

  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 relatively expensive, and therefore it is preferable to remove it from the cartridge type unit.

  Furthermore, in the present embodiment, the case where the liquid flow path is connected to the bottom of the battery and the bottom of the storage container has been described as an example, but if the battery and the storage container are connected by the liquid flow path, Needless to say, it is included in the scope of the present invention. Since the liquid channel is connected to the bottom of the battery, the liquid channel and the liquid supply unit cooperate to function as a removing unit that removes oxide deposits that can be generated in the electrolyte storage unit. Can be made. In other words, the oxide 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 a liquid from the bottom. It is also effective for removing hydrogen generated at the initial stage of liquid supply. As a result, output can be improved. Further, since 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 this 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. It goes without saying that the container is included in the scope of the present invention as long as it is connected to the container by a liquid channel. In addition, there is an advantage that liquid resistance is easily ensured by adopting a configuration in which the liquid flow path is included in the storage container and the battery, in other words, the liquid flow path is formed inside the cartridge type unit.

  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. 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. 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 an operation when supplying liquid and an operation when collecting 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 plurality of liquid flow paths 30 and 32, and the liquid supply unit C is connected to the storage container 10 and the battery via the liquid flow paths 30 and 32. 20 is different from the first embodiment (battery system 1).

  In the present embodiment, the liquid flow path 32 is connected to the upper part of the battery 20, in other words, the upper part of the electrolyte solution containing part 21 a (see FIG. 3 or 4) and the upper part of the storage container 10. Moreover, in this form, the liquid flow path 32 and the storage container 10 have the filters 61 and 62 inside them.

  By adopting such a configuration, for example, in a cartridge type unit including a battery, it is not necessary to provide components such as a motor, and the number of components can be reduced, thereby reducing the size, weight, and cost of the cartridge type unit. In addition, since the structure that can easily replace the part that hinders the improvement of durability, 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. Further, in the battery system, the electrolytic solution can be circulated while suppressing the retention of oxidation precipitates. As a result, output can be improved.

  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 the present embodiment, the case where the liquid flow path is connected to the bottom of the battery and the bottom of the storage container has been described as an example, but if the battery and the storage container are connected by the liquid flow path, Needless to say, it is included in the scope of the present invention. Since the liquid channel is connected to the bottom of the battery, the liquid channel and the liquid supply unit cooperate to function as a removing unit that removes oxide deposits that can be generated in the electrolyte storage unit. Can be made. In other words, the oxide 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 a liquid from the bottom. It is also effective for removing hydrogen generated at the initial stage of liquid supply. As a result, output can be improved. Further, since 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 this 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. It goes without saying that the container is included in the scope of the present invention as long as it is connected to the container by a liquid channel. In addition, there is an advantage that liquid resistance is easily ensured by adopting a configuration in which the liquid flow path is included in the storage container and the battery, in other words, the liquid flow path is formed inside the cartridge type unit.

  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. In addition, since the liquid flow path is connected to the upper part of the battery, in other words, the upper part of the electrolytic solution storage part, it is possible to collect the oxide deposits that may stay in the upper part of the electrolytic solution storage part 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 channel on the side corresponding to the liquid channel 32 is connected to the bottom of the battery (not shown), it is possible to efficiently remove the precipitated oxide deposits.

  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.

<Sixth form>
Next, a battery system according to a sixth 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. 13 is a schematic configuration diagram schematically showing a battery system according to the sixth embodiment. Moreover, FIG. 14 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 6th form.

  As shown in FIGS. 13 and 14, the battery system 1 </ b> E of the present embodiment includes a plurality of liquid flow paths 30 and 32, and the liquid supply unit C is connected to the storage container 10 and the battery via the liquid flow paths 30 and 32. 20 is different from the second embodiment (battery system 1A).

  In the present embodiment, the liquid flow path 32 is connected to the upper part of the battery 20, in other words, the upper part of the electrolyte solution containing part 21 a (see FIG. 3 or 4) and the upper part of the storage container 10. Moreover, in this form, the liquid flow path 32 and the storage container 10 have the filters 61 and 62 inside them.

  By adopting such a configuration, for example, in a cartridge type unit including a battery, it is not necessary to provide components such as a motor, and the number of components can be reduced, thereby reducing the size, weight, and cost of the cartridge type unit. In addition, since the structure that can easily replace the part that hinders the improvement of durability, 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. Further, in the battery system, the electrolytic solution can be circulated while suppressing the retention of oxidation precipitates. As a result, output can be improved.

  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 the present embodiment, the case where the liquid flow path is connected to the bottom of the battery and the bottom of the storage container has been described as an example, but if the battery and the storage container are connected by the liquid flow path, Needless to say, it is included in the scope of the present invention. Since the liquid channel is connected to the bottom of the battery, the liquid channel and the liquid supply unit cooperate to function as a removing unit that removes oxide deposits that can be generated in the electrolyte storage unit. Can be made. In other words, the oxide 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 a liquid from the bottom. It is also effective for removing hydrogen generated at the initial stage of liquid supply. As a result, output can be improved. Further, since 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 this 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. It goes without saying that the container is included in the scope of the present invention as long as it is connected to the container by a liquid channel. In addition, there is an advantage that liquid resistance is easily ensured by adopting a configuration in which the liquid flow path is included in the storage container and the battery, in other words, the liquid flow path is formed inside the cartridge type unit.

  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. In addition, since the liquid flow path is connected to the upper part of the battery, in other words, the upper part of the electrolytic solution storage part, it is possible to collect the oxide deposits that may stay in the upper part of the electrolytic solution storage part 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 channel on the side corresponding to the liquid channel 32 is connected to the bottom of the battery (not shown), it is possible to efficiently remove the precipitated oxide deposits.

  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.

<Seventh form>
Next, a battery system according to a seventh 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. 15 is a schematic configuration diagram schematically showing the battery system according to the seventh embodiment. FIGS. 16A and 16B are explanatory diagrams schematically showing an operation when supplying liquid and an operation when collecting liquid in the battery system according to the seventh embodiment.

  As shown in FIGS. 15 and 16, the battery system 1 </ b> F of this embodiment includes a plurality of liquid flow paths 30 and 32, and the liquid supply unit C is connected to the storage container 10 and the battery via the liquid flow paths 30 and 32. 20 is different from the third embodiment (battery system 1B) in the configuration in which the liquid is circulated between the two. In circulation of the electrolyte, for example, the liquid flow paths 30 and 32 include a valve (not shown) that controls the flow of the electrolyte, and the two valves can be alternately opened and closed in accordance with the timing to extend and contract the actuator. That's fine.

  In the present embodiment, the liquid flow path 32 is connected to the upper part of the battery 20, in other words, the upper part of the electrolyte solution containing part 21 a (see FIG. 3 or 4) and the upper part of the storage container 10. Moreover, in this form, the liquid flow path 32 and the storage container 10 have the filters 61 and 62 inside them.

  By adopting such a configuration, for example, in a cartridge type unit including a battery, it is not necessary to provide a part such as an actuator, and the number of parts can be reduced, so that the cartridge type unit can be reduced in size, weight, and cost. In addition, since the structure that can easily replace the part that hinders the improvement of durability, 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. Further, in the battery system, the electrolytic solution can be circulated while suppressing the retention of oxidation precipitates. As a result, output can be improved.

  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 the present embodiment, the case where the liquid flow path is connected to the bottom of the battery and the bottom of the storage container has been described as an example, but if the battery and the storage container are connected by the liquid flow path, Needless to say, it is included in the scope of the present invention. Since the liquid channel is connected to the bottom of the battery, the liquid channel and the liquid supply unit cooperate to function as a removing unit that removes oxide deposits that can be generated in the electrolyte storage unit. Can be made. In other words, the oxide 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 a liquid from the bottom. It is also effective for removing hydrogen generated at the initial stage of liquid supply. As a result, output can be improved. Further, since 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 this 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. It goes without saying that the container is included in the scope of the present invention as long as it is connected to the container by a liquid channel. In addition, there is an advantage that liquid resistance is easily ensured by adopting a configuration in which the liquid flow path is included in the storage container and the battery, in other words, the liquid flow path is formed inside the cartridge type unit.

  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. In addition, since the liquid flow path is connected to the upper part of the battery, in other words, the upper part of the electrolytic solution storage part, it is possible to collect the oxide deposits that may stay in the upper part of the electrolytic solution storage part 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 channel on the side corresponding to the liquid channel 32 is connected to the bottom of the battery (not shown), it is possible to efficiently remove the precipitated oxide deposits.

  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.

<Eighth form>
Next, a battery system according to an eighth 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. 17 is a schematic configuration diagram schematically showing the battery system according to the eighth embodiment. Moreover, FIG. 18 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 an 8th form.

  As shown in FIGS. 17 and 18, the battery system 1G of this embodiment includes a plurality of liquid flow paths 30 and 32, and the liquid supply unit C is connected to the storage container 10 and the battery via the liquid flow paths 30 and 32. 20 is different from the fourth embodiment (battery system 1C). In circulation of the electrolyte, for example, the liquid flow paths 30 and 32 are provided with a valve (not shown) for controlling the flow of the electrolyte, and the two valves are alternately opened and closed at the timing when the internal pressure is increased by the air pump. You can do it.

  In the present embodiment, the liquid flow path 32 is connected to the upper part of the battery 20, in other words, the upper part of the electrolyte solution containing part 21 a (see FIG. 3 or 4) and the upper part of the storage container 10. Moreover, in this form, the liquid flow path 32 and the storage container 10 have the filters 61 and 62 inside them.

  By adopting such a configuration, for example, in a cartridge type unit including a battery, it is not necessary to provide components such as an air pump, and the number of components can be reduced. Therefore, the cartridge type unit can be reduced in size, weight, and cost. In addition, since the structure that can easily replace the part that hinders the improvement of durability, 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. Further, in the battery system, the electrolytic solution can be circulated while suppressing the retention of oxidation precipitates. As a result, output can be improved.

  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 relatively expensive, and therefore it is preferable to remove it from the cartridge type unit.

  Furthermore, in the present embodiment, the case where the liquid flow path is connected to the bottom of the battery and the bottom of the storage container has been described as an example, but if the battery and the storage container are connected by the liquid flow path, Needless to say, it is included in the scope of the present invention. Since the liquid channel is connected to the bottom of the battery, the liquid channel and the liquid supply unit cooperate to function as a removing unit that removes oxide deposits that can be generated in the electrolyte storage unit. Can be made. In other words, the oxide 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 a liquid from the bottom. It is also effective for removing hydrogen generated at the initial stage of liquid supply. As a result, output can be improved. Further, since 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 this 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. It goes without saying that the container is included in the scope of the present invention as long as it is connected to the container by a liquid channel. In addition, there is an advantage that liquid resistance is easily ensured by adopting a configuration in which the liquid flow path is included in the storage container and the battery, in other words, the liquid flow path is formed inside the cartridge type unit.

  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. In addition, since the liquid flow path is connected to the upper part of the battery, in other words, the upper part of the electrolytic solution storage part, it is possible to collect the oxide deposits that may stay in the upper part of the electrolytic solution storage part 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 channel on the side corresponding to the liquid channel 32 is connected to the bottom of the battery (not shown), it is possible to efficiently remove the precipitated oxide deposits.

  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.

DESCRIPTION OF SYMBOLS 1,1A-1G 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 X Electrode facing part Y Electrode non-facing part

Claims (8)

A storage container that stores at least one liquid of an electrolytic solution and a solvent for preparing the electrolytic solution and a battery that is established by supplying the liquid are integrated or separated, and the storage container and at least the battery One is a cartridge type unit provided with a liquid flow path connecting the storage container and the battery;
A battery control unit including a mounting unit capable of attaching and detaching the cartridge type unit,
Through the liquid flow channel, seen including a liquid supply portion for supplying liquid to said battery from said reservoir,
The battery control unit includes a drive unit for the liquid supply unit,
The drive unit is a motor,
The battery system , wherein the liquid supply unit includes a tube pump driven by the motor . The tube pump has a configuration in which the tube portion of the liquid channel is sandwiched between the battery or the storage container and a roller attached to a rotor connected to a rotor of the motor. The battery system according to claim 1 . A storage container that stores at least one liquid of an electrolytic solution and a solvent for preparing the electrolytic solution and a battery that is established by supplying the liquid are integrated or separated, and the storage container and at least the battery One is a cartridge type unit provided with a liquid flow path connecting the storage container and the battery;
A battery control unit including a mounting unit capable of attaching and detaching the cartridge type unit.
A battery system,
Including a liquid supply unit that supplies liquid from the storage container to the battery via the liquid channel;
The battery control unit includes a drive unit for the liquid supply unit,
The drive unit is a motor,
The liquid supply portion is connected to the liquid channel, it characterized batteries system that includes a pump head that is driven by the motor. The battery system according to claim 3 , wherein when the cartridge type unit is mounted on the mounting portion, the pump head is driven by the motor via a gear. 5. The battery system according to claim 1 , wherein the liquid is present only in the storage container when the battery is stored. 6. The battery according to claim 1 , wherein the liquid supply unit collects liquid from the battery to the storage container by driving the driving unit in reverse. system. A plurality of the liquid channels are provided,
The battery according to claim 1 , wherein the liquid supply unit circulates the liquid between the storage container and the battery via the liquid channel. system. The cartridge type unit integrally includes the storage container and the battery,
The battery system according to claim 1 , wherein the liquid channel is included in the cartridge type unit.

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