JP2020202166A - Power storage device, power storage system, method for producing power storage device, and method for producing power storage system - Google Patents

Abstract

To solve such a problem that conventional battery packs are not designed in consideration of both the mass adjustment of a battery pack and the reuse of a battery module.SOLUTION: When a power storage device 142 configures a part of a first power storage system 140 that is used while being mounted on a mobile 100, the power storage device is detachably connected, directly or using a first connection member, with a mass adjustment member 164 for adjusting the mass of the first power storage system. When the power storage device configures a part of a second power storage system that is used without being mounted on a mobile, the power storage device is detachably connected, directly or using a second connection member, with another power storage device configuring the second power storage system.SELECTED DRAWING: Figure 1

Description

The present invention relates to a power storage device, a power storage system, a method of producing a power storage device, and a method of producing a power storage system.

In recent years, when a secondary battery mounted on an automobile deteriorates, it has been studied to reuse the secondary battery as a stationary secondary battery (for example, Patent Document 1). Further, when increasing or decreasing the number of battery modules constituting the battery pack mounted on the vehicle, by installing a dummy module or the like in the battery pack according to the increase or decrease of the battery modules, the weight balance of the battery pack can be adjusted. Techniques for preventing deterioration are known (for example, Patent Documents 2 and 3).
[Prior art literature]
[Patent Document]
[Patent Document 1] Japanese Patent Application Laid-Open No. 2013-218909 [Patent Document 2] Japanese Patent No. 6304426 [Patent Document 3] Japanese Patent Application Laid-Open No. 5208653

In order to adjust the mass of the battery pack, for example, when a part of the battery modules constituting the battery pack is replaced with a dummy module, the amount of work for assembling the battery pack becomes relatively large. Further, when the battery module constituting the battery pack is reused, the amount of work for disassembling the battery pack is relatively large. As described above, the conventional battery pack is not designed in consideration of both the mass adjustment of the battery pack and the reuse of the battery module.

In the first aspect of the present invention, a power storage device is provided. When the power storage device constitutes a part of a first power storage system configured to be mounted on a mobile body and used, the power storage device may be used, for example, by using a first connection member or directly. , It is detachably connected to a mass adjusting member for adjusting the mass of the first power storage system. When the power storage device constitutes a part of a second power storage system that is used without being mounted on a mobile body, the power storage device may be used, for example, by using a second connection member or directly by using a second power storage device. It is detachably connected to other power storage devices that make up the power storage system.

In the above power storage device, the power storage device and the mass adjusting member may be detachably configured. In the above power storage device, when the power storage device that constitutes a part of the first power storage system constitutes a part of the second power storage system, the power storage device is separated from the mass adjusting member and is another. It may be connected to a power storage device. In the above power storage device, the mass adjusting member does not have to have a power storage cell for storing electric power. In the above power storage device, the mass of the mass adjusting member may be set so that the total mass of the first power storage system becomes a predetermined value.

The power storage device may include one or more power storage cells. The power storage device may include a housing that houses one or more power storage cells. The above power storage device may include a plurality of power storage cells. The power storage device may include a first equalization unit that equalizes the voltages of at least two power storage cells among the plurality of power storage cells.

The above-mentioned power storage device may include a connection portion used for connection with a mass adjusting member or another power storage device. In the above power storage device, the connection portion is used for connection with the mass adjusting member when the power storage device constitutes a part of the first power storage system, and the power storage device constitutes a part of the second power storage system. In some cases, it may have a common connection portion used for connection with another power storage device. In the above power storage device, the connection part is arranged at a position different from the first connection part used for connecting to the mass adjusting member and the first connection part, and is used for connecting to another power storage device. It may have a part.

In the second aspect of the present invention, a power storage system is provided. The power storage system includes, for example, a power storage device according to the first aspect. The power storage system includes, for example, a mass adjusting member.

The above-mentioned power storage system may include a power storage device and a storage member for accommodating the mass adjusting member. In the above power storage system, the mass adjusting member may be detachably attached to the accommodating member. In the above power storage system, the power storage device may be detachably attached to the mass adjusting member and the accommodating member by using the first connecting member or directly.

The above-mentioned power storage system may include a power storage device and a storage member for accommodating the mass adjusting member. In the above power storage system, at least a part of the mass adjusting member may be arranged between the accommodating member and the power storage device. In the above-mentioned power storage system, the mass adjusting member may be detachably attached to the accommodating member by detachably attaching the electricity storage device to the accommodating member using or directly from the first connecting member.

The power storage system may include an information collecting unit that collects information indicating at least one of the operation and the state of the power storage device.

In the third aspect of the present invention, a stationary power storage system is provided. The stationary power storage system includes, for example, the power storage device according to the first aspect. The above-mentioned stationary power storage system includes, for example, a plurality of power storage devices and a second equalization unit that equalizes the voltages of the plurality of power storage devices.

A fourth aspect of the present invention provides a method of producing a power storage system including a power storage device. The above method includes, for example, a first mass information acquisition step of acquiring first mass information indicating the mass of the power storage device. The above method includes, for example, a second mass information acquisition step of acquiring second mass information indicating the mass of another power storage device that constitutes a part of another power storage system mounted on the mobile body. The above method has, for example, a first preparatory step of preparing a mass adjusting member having a mass corresponding to the difference between the mass indicated by the second mass information and the mass indicated by the first mass information. The above method includes, for example, an assembly step of assembling a power storage device and a mass adjusting member to manufacture a power storage system.

The above method may include a dimensional information acquisition step of acquiring dimensional information indicating the external dimensions of another power storage system. The above method may have a center of gravity information acquisition step of acquiring center of gravity information indicating the position of the center of gravity of another power storage system. The above method has an external dimension indicated by dimensional information, and may have a second preparatory step of preparing an accommodating member for accommodating a power storage device and a mass adjusting member therein. In the above method, in the assembly stage, the positional relationship between the outer shape of the accommodating member and the center of gravity of the power storage system is abbreviated as the positional relationship between the outer shape of the other power storage system and the center of gravity of the other power storage system indicated by the center of gravity information. A step of attaching the power storage device and the mass adjusting member to the accommodating member may be included so as to be the same.

A fifth aspect of the present invention provides a method of producing a stationary power storage system. In the above method, for example, a plurality of other power storage systems including a power storage device for storing electric power and a mass adjusting member for adjusting the mass of the other power storage system are prepared. Has stages. The above method includes, for example, a step of separating each of the plurality of power storage devices constituting each of the plurality of other power storage systems and the corresponding mass adjusting member. The above method comprises, for example, electrically connecting a plurality of power storage devices separated from the corresponding mass adjusting members.

The outline of the above invention does not list all the necessary features of the present invention. Sub-combinations of these feature groups can also be inventions.

An example of the use of the lithium battery pack 160 is shown schematically. Other examples of applications of the lithium battery pack 160 are schematically shown. An example of the system configuration of the power storage module 162 is shown schematically. An example of the assembly process of the lithium battery pack 160 is shown schematically. An example of the assembly process of the lithium battery pack 160 is shown schematically. An example of the assembly process of the lithium battery pack 160 is shown schematically. An example of a cross-sectional view of the lithium battery pack 160 is shown schematically. Other examples of cross-sectional views of the lithium battery pack 160 are shown schematically. An example of the structure of the rack 222 is shown schematically. An example of the mounting method of the power storage module 162 is shown schematically. An example of a production method of the lithium battery pack 160 is schematically shown. An example of a production method of the stationary power supply 200 is schematically shown. An example of the system configuration of the computer 3000 is shown schematically.

Hereinafter, the present invention will be described through embodiments of the invention, but the following embodiments do not limit the inventions claimed in the claims. Not all combinations of features described in the embodiments are essential to the solution of the invention. Further, although the embodiment will be described with reference to the drawings, in the description of the drawings, the same or similar parts may be given the same reference number to omit duplicate explanations.

As used herein, the term "electrically connected" is not limited to the case where a specific element is directly connected to another element. A third element may intervene between a particular element and another. Further, the present invention is not limited to the case where a specific element and another element are physically connected. For example, the input and output windings of a transformer are not physically connected, but are electrically connected. Further, not only when a specific element and another element are actually electrically connected, but also when the storage cell and the balance correction unit are electrically connected, the specific element and the other element are connected. Includes the case where is electrically connected. Also, "connected in series" means that a specific element and another element are electrically connected in series, and "connected in parallel" means that a specific element and another element are electrically connected. Indicates that and are electrically connected in parallel.

An outline of the structure and application of the lithium battery pack 160 will be described with reference to FIGS. 1 and 2. FIG. 1 schematically shows an example of an application of the lithium battery pack 160. Specifically, the details of the lithium battery pack 160 will be described with reference to FIG. 1 by taking as an example a case where the existing battery pack mounted on the vehicle 100 is replaced with the lithium battery pack 160. FIG. 2 schematically shows another example of the use of the lithium battery pack 160. Specifically, the details of the lithium battery pack 160 will be described with reference to FIG. 2 by taking as an example the case where the lithium battery pack 160 is reused as a part of the stationary power supply 200.

As shown in FIG. 1, in the present embodiment, the vehicle 100 includes a vehicle control unit 120, a drive system 130, and a power supply system 140. In this embodiment, the power supply system 140 has a lead battery pack 142. Further, in the present embodiment, the lithium battery pack 160 includes a power storage module 162, a weight module 164, a storage case 166, and an antenna 168.

As shown in FIG. 2, in the present embodiment, the stationary power supply 200 includes a power storage unit 220, a module equalization unit 230, and a power supply control unit 240. In the present embodiment, the power storage unit 220 has a rack 222.

[Overview of Vehicle 100]
In this embodiment, the vehicle 100 uses the electric power provided by the power supply system 140. The vehicle 100 may travel using the power provided by the power supply system 140. Examples of the vehicle 100 include automobiles, motorcycles, work machines, and trains. Motorcycles include (i) motorcycles, (ii) tricycles, (iii) Segways (registered trademarks), kickboards with power units (registered trademarks), skateboards with power units, and other standing vehicles with power units. A two-wheeled vehicle or a three-wheeled vehicle is exemplified. Examples of work machines include forklifts, agricultural work machines, and civil engineering work machines.

In the present embodiment, the vehicle control unit 120 controls the operation of the vehicle 100. The vehicle control unit 120 controls, for example, the drive system 130 to control the drive of the vehicle 100. The vehicle control unit 120 controls, for example, the power supply system 140 to control the charging and discharging of the power supply system 140.

In the present embodiment, the drive system 130 drives the vehicle 100 according to an instruction from the vehicle control unit 120. The drive system 130 may drive the vehicle 100 using the power provided by the power supply system 140.

In the present embodiment, the power supply system 140 outputs the electric power stored in the power supply system 140 according to the instruction from the vehicle control unit 120. The power supply system 140 charges the lead battery pack 142 according to the instruction from the vehicle control unit 120.

In this embodiment, the lead battery pack 142 stores and discharges electric power. The lead battery pack 142 includes one or more lead storage battery storage cells. Inside the lead battery pack 142, at least a part of the plurality of storage cells may be connected in series, at least a part of the plurality of storage cells may be connected in parallel, and at least a part of the plurality of storage cells may be connected in parallel. Part of it may be connected in a matrix.

[Specific configuration of each part of the vehicle 100]
Each part of the vehicle 100 may be realized by hardware, may be realized by software, or may be realized by hardware and software. When at least a part of the components constituting the vehicle 100 is realized by software, the component realized by the software is a program that defines the operation related to the component in an information processing device having a general configuration. It may be realized by starting. The above-mentioned information processing device includes, for example, (i) a data processing device having a processor such as a CPU and GPU, a ROM, a RAM, a communication interface, and (ii) a keyboard, a touch panel, a camera, a microphone, various sensors, and a GPS receiver. It includes an input device such as (iii), an output device such as a display device, a speaker, and a vibration device, and a storage device (including an external storage device) such as (iv) memory and HDD. The processor may be an example of a computer.

In the information processing device, the data processing device or the storage device may store a program. The above program may be stored on a non-temporary computer-readable recording medium. The above program is executed by the processor to cause the above information processing apparatus to execute the operation specified by the program.

The program may be stored on a non-temporary computer-readable recording medium. The program may be stored on a computer-readable medium such as a CD-ROM, DVD-ROM, memory, or hard disk, or may be stored on a storage device connected to a network. The program may be installed on a computer that constitutes at least a portion of the vehicle 100 from a computer-readable medium or a storage device connected to a network. By executing the program, the computer may function as at least a part of each part of the vehicle 100.

A program that causes the computer to function as at least a part of each part of the vehicle 100 may include a module that defines the operation of each part of the vehicle 100. These programs or modules work on a data processing device, an input device, an output device, a storage device, etc. to make the computer function as each part of the vehicle 100, or cause the computer to execute an information processing method in each part of the vehicle 100. ..

The information processing described in the program functions as a concrete means in which the software related to the program and various hardware resources of the vehicle 100 cooperate with each other when the program is read into the computer. Then, the above-mentioned specific means realizes the calculation or processing of information according to the purpose of use of the computer in the present embodiment, so that the vehicle 100 according to the purpose of use is constructed.

[Overview of Lithium Battery Pack 160]
In this embodiment, the lithium battery pack 160 is configured to be mounted and used in the vehicle 100. According to the embodiment described in FIG. 1, the lead battery pack 142 is removed from the power supply system 140 of the vehicle 100, and the lithium battery pack 160 is mounted on the vehicle 100 in place of the lead battery pack 142. Each part of the vehicle 100 may be designed in consideration of the mass of the lead battery pack 142. Therefore, the mass of the lithium battery pack 160 is preferably substantially the same as the mass of the lead battery pack 142.

The fact that the mass of the lithium battery pack 160 and the mass of the lead battery pack 142 are substantially the same is not only when the mass of the lithium battery pack 160 and the mass of the lead battery pack 142 are the same, but also when the mass of the lithium battery pack 142 is the same. This includes the case where the difference between the mass of 160 and the mass of the lead battery pack 142 is within an acceptable range in the design of the vehicle 100. Specifically, the absolute value of the difference between the mass of the lithium battery pack 160 and the mass of the lead battery pack 142 is preferably within 20% of the mass of the lead battery pack 142, and 15% of the mass of the lead battery pack 142. It is more preferably within 10% of the mass of the lead battery pack 142, and further preferably within 5% of the mass of the lead battery pack 142.

Similarly, each part of the vehicle 100 may be designed in consideration of the position of the center of gravity of the lead battery pack 142. More specifically, each part of the vehicle 100 may be designed in consideration of the relative position of the center of gravity of the lead battery pack 142 with respect to an arbitrary reference point of the vehicle 100. The reference point of the vehicle 100 may be the center of gravity of the vehicle 100. The reference point of the vehicle 100 may be the center of gravity of the vehicle 100 when the lead battery pack 142 or the lithium battery pack 160 is removed.

Therefore, in one embodiment, the position of the center of gravity of the lithium battery pack 160 with respect to the reference point of the vehicle 100 is the position of the lead battery pack 142 with respect to the reference point of the vehicle 100 when the lead battery pack 142 is mounted on the vehicle 100. The mounting position of the lithium battery pack 160 in the vehicle 100 is determined so as to be substantially the same as the relative position of the center of gravity. The substantially same range or degree described above may be determined in consideration of the range or degree of error or variation that is acceptable in the design of the vehicle 100.

In another embodiment, (i) the external dimensions of the lithium battery pack 160, (ii) the mounting position of the lithium battery pack 160 in the vehicle 100, and (iii) when the lead battery pack 142 is mounted in the vehicle 100. The position of the center of gravity of the lithium battery pack 160 in the lithium battery pack 160 is determined based on the relative position of the center of gravity of the lead battery pack 142 with respect to the reference point of the vehicle 100. For example, when the external dimensions of the lithium battery pack 160 are substantially the same as the external dimensions of the lead battery pack 142, the position of the center of gravity of the lithium battery pack 160 may be substantially the same as the position of the center of gravity of the lead battery pack 142. preferable. The substantially same range or degree described above may be determined in consideration of the range or degree of error or variation that is acceptable in the design of the vehicle 100.

In still another embodiment, (i) the external dimensions of the lithium battery pack 160, (ii) the mounting position of the lithium battery pack 160 in the vehicle 100, and (iii) when the lead battery pack 142 is mounted in the vehicle 100. The mass of the lithium battery pack 160 and the position of the center of gravity of the lithium battery pack 160 in the lithium battery pack 160 are determined based on the relative position of the center of gravity of the lead battery pack 142 with respect to the reference point of the vehicle 100. For example, the moment of inertia of the lead battery pack 142 when the reference point of the vehicle 100 is the center of rotation and the moment of inertia of the lithium battery pack 160 when the reference point of the vehicle 100 is the center of rotation are substantially the same. , The mass of the lithium battery pack 160 and the position of the center of gravity of the lithium battery pack 160 are determined. The substantially same range or degree described above may be determined in consideration of the range or degree of error or variation that is acceptable in the design of the vehicle 100.

Further, as shown in FIG. 2, according to the present embodiment, for example, when the deterioration of the power storage module 162 constituting the lithium battery pack 160 progresses to a predetermined degree, the lithium battery pack 160 is removed from the vehicle 100. Is done. Further, the lithium battery pack 160 removed from the vehicle 100 is reused as a part of the stationary power supply 200. More specifically, first, a plurality of lithium battery packs 160 removed from one or more vehicles 100 are collected. Next, each of the plurality of lithium battery packs 160 is disassembled, and the plurality of power storage modules 162 are taken out. As a result, the power storage module 162 and the weight module 164 are separated. After that, the power storage module 162 separated from the weight module 164 is attached to the rack 222 and reused as a part of the power storage unit 220 of the stationary power supply 200.

[Overview of each part of the lithium battery pack 160]
In the present embodiment, the power storage module 162 stores electric power and discharges electric power. The power storage module 162 includes one or more power storage cells (sometimes referred to as a power storage cell group). In one embodiment, the power storage module 162 constitutes a part of the lithium battery pack 160. In another embodiment, the power storage module 162 constitutes a part of the stationary power supply 200.

As shown in FIG. 1, when the power storage module 162 constitutes a part of the lithium battery pack 160, the power storage module 162 is directly or indirectly connected to the weight module 164. The power storage module 162 and the weight module 164 may be detachably connected to each other.

For example, when the power storage module 162 and the weight module 164 are connected by welding, the power storage module 162 and the weight module 164 are not removable. On the other hand, when the power storage module 162 and the weight module 164 are connected by (i) physical means such as fasteners, (ii) chemical means such as adhesive, and (iii) magnetic means such as magnets. The power storage module 162 and the weight module 164 are removable.

In one embodiment, the power storage module 162 and the weight module 164 may be directly connected by a method such as fitting. In another embodiment, the power storage module 162 and the weight module 164 may be indirectly connected via any member. Optional members consist of (i) fasteners, ropes, bands, cloths, and plates, rods, boxes or bags of various materials, (ii) tapes and adhesives, and (iii) magnets. At least one selected is exemplified. Examples of fasteners include pins, screws, and hook-and-loop fasteners.

In the present embodiment, the power storage module 162 and a part of the storage case 166 are directly or indirectly connected, and the weight module 164 and the other part of the storage case 166 are directly connected. Or indirectly connected. As a result, the power storage module 162 and the weight module 164 are connected.

As shown in FIG. 2, when a plurality of power storage modules 162 form a part of the stationary power supply 200, one power storage module 162 directly or indirectly with another power storage module 162 constituting the stationary power supply 200. Is connected. The power storage module 162 and the weight module 164 may be detachably connected or may be firmly connected.

In one embodiment, one power storage module 162 and another power storage module 162 may be directly connected by a method such as fitting. In another embodiment, one power storage module 162 and another power storage module 162 may be indirectly connected via any member. Optional members may be selected from the group consisting of (i) fasteners, ropes, bands, cloths, and plates, rods, boxes or bags of various materials (ii) tapes and adhesives, and (iii) magnets. At least one is exemplified. Examples of fasteners include pins, screws, and hook-and-loop fasteners.

In the present embodiment, one power storage module 162 and one part of the rack 222 are directly or indirectly connected, and the other power storage module 162 and the other part of the rack 222 are directly or indirectly connected. Indirectly connected. As a result, one power storage module 162 and the other power storage module 162 are indirectly connected via the rack 222. The details of the power storage module 162 will be described later.

In this embodiment, the weight module 164 is used to adjust the mass of the lithium battery pack 160. The weight module 164 may be used to adjust the center of gravity of the lithium battery pack 160. The weight module 164 may or may not have a power storage cell.

In one embodiment, the mass of the weight module 164 is set so that the total mass of the lithium battery pack 160 is a predetermined value. The mass of the weight module 164 may be set so that the total mass of the lithium battery pack 160 is substantially the same as the total mass of the lead battery pack 142.

In another embodiment, the mass of the weight module 164 is (i) the moment of inertia of the lithium battery pack 160 centered on the reference point of the vehicle 100 when the lithium battery pack 160 is mounted on the vehicle 100, and (ii). ) When the lead battery pack 142 is mounted on the vehicle 100, it may be set so that the moment of inertia of the lead battery pack 142 centered on the reference point of the vehicle 100 is substantially the same. The reference point of the vehicle 100 may be the center of gravity of the vehicle 100. The reference point of the vehicle 100 may be the center of gravity of the vehicle 100 when the lead battery pack 142 or the lithium battery pack 160 is removed.

When replacing the lead battery pack 142 with the lithium battery pack 160, the capacity of the lithium battery pack 160 is often determined to be substantially the same as the capacity of the lead battery pack 142 or larger than the capacity of the lead battery pack 142. .. Here, in general, a lead storage battery has a larger mass per capacity than a lithium battery or a lithium ion battery. Therefore, even if the external dimensions of the lithium battery pack 160 are substantially the same as the external dimensions of the lead battery pack 142 or smaller than the external dimensions of the lead battery pack 142, the lithium battery pack 160 is appropriately positioned at an appropriate position. By arranging the weight module 164 having a large mass, the mass of the lithium battery pack 160 can be adjusted, and the position of the center of gravity of the lithium battery pack 160 can be adjusted.

In the present embodiment, the storage case 166 holds the power storage module 162 and the weight module 164. The storage case 166 may house the power storage module 162 and the weight module 164 inside. The storage case 166 is formed with an opening for accommodating the power storage module 162 and the weight module 164 inside the storage case 166 and for taking out the power storage module 162 and the weight module 164 from the inside. The storage case 166 may have a lid member (not shown) for closing the opening.

In this embodiment, the antenna 168 is used for wireless communication between the power storage module 162 and the external information processing device of the lithium battery pack 160. The antenna 168 may be arranged outside the containment case 166. If the containment case 166 has an opening, the antenna 168 may be disposed inside the containment case 166.

[Overview of stationary power supply 200]
In the present embodiment, the stationary power supply 200 is used without being mounted on the vehicle 100. According to the embodiment shown in FIG. 2, for example, when the deterioration of the power storage module 162 included in the lithium battery pack 160 mounted on the vehicle 100 progresses to a predetermined degree, the lithium battery pack 160 is released to the vehicle. It is removed from the power supply system 140 of 100.

The lithium battery pack 160 removed from the power supply system 140 is disassembled, and the power storage module 162 is recovered. As described above, in the lithium battery pack 160, the power storage module 162 and the weight module 164 are detachably configured. Therefore, at this stage, the power storage module 162 and the weight module 164 can be separated. Then, the power storage module 162 is connected to another power storage module 162 in a state of being separated from the weight module 164. Further, a plurality of power storage modules 162 are electrically connected.

As a result, the recovered power storage module 162 is reused as a part of the power storage unit 220 of the stationary power supply 200. The weight module 164 separated from the power storage module 162 may be reused for adjusting the mass of the lithium battery pack 160 without being mounted on the rack 222. According to this embodiment, since the weight module 164 is not mounted on the rack 222, the cost and space of the rack 222 can be reduced.

[Overview of each part of the stationary power supply 200]
In the present embodiment, the power storage unit 220 stores and discharges electric power. The power storage unit 220 includes one or more power storage modules 162. For example, each of the plurality of power storage modules 162 recovered from each of the plurality of lithium battery packs 160 is mounted in the rack. Each of the plurality of power storage modules 162 may be detachably attached to the rack 222. Details of the rack 222 will be described later.

In one embodiment, each of the plurality of power storage modules 162 and the rack 222 may be directly connected by a method such as fitting. In another embodiment, each of the plurality of power storage modules 162 and the rack 222 may be indirectly connected via any member. The optional member is at least selected from the group consisting of (i) fasteners, ropes, bands, cloths, and plates or rods of various materials, (ii) tapes and adhesives, and (iii) magnets. One is exemplified. Examples of fasteners include pins, screws, and hook-and-loop fasteners.

In the present embodiment, the module equalization unit 230 equalizes the voltages of at least two power storage modules 162 among the plurality of power storage modules 162 constituting the power storage unit 220. The operating principle of the module equalizing unit 230 is not particularly limited, and an arbitrary balance correction device (sometimes referred to as an equalizing device) can be used.

The module equalization unit 230 may have a plurality of balance correction devices. In one embodiment, when the power storage unit 220 has n power storage modules (n is an integer of 2 or more), the module equalization unit 230 has n balance correction devices. In another embodiment, when the power storage unit 220 has n (n is an integer of 2 or more) power storage modules 162, the module equalization unit 230 has n-1 balance correction devices.

The module equalization unit 230 may be realized by hardware, may be realized by software, or may be realized by a combination of hardware and software. The module equalization unit 230 may be realized by an analog circuit, a digital circuit, or a combination of an analog circuit and a digital circuit. In one embodiment, the module equalization unit 230 includes an active balance correction device. The active balance correction device may be a balance correction device that transfers electric charges between two storage modules 162 via an inductor, as described in Japanese Patent Application Laid-Open No. 2006-066742. It includes a balance correction device that transfers charges using a capacitor, as described in 2012-210109. In another embodiment, the module equalization unit 230 may be a passive balance correction device. The passive balance corrector uses, for example, an external resistor to emit extra charge.

In the present embodiment, the power supply control unit 240 controls the operation of the stationary power supply 200. The power supply control unit 240 may control the output of the stationary power supply 200. The power supply control unit 240 controls, for example, at least one of the output power, output voltage, output current, and output rate of the stationary power supply 200. The power supply control unit 240 may control the charging of the stationary power supply 200. For example, the power supply control unit 240 controls at least one of the charging power, charging voltage, charging current, and charging rate of the stationary power supply 200.

The power supply control unit 240 may monitor at least one of the operation and the state of each of the plurality of power storage modules 162 constituting the power storage unit 220. The power supply control unit 240 may store the information indicating the time and the information indicating the state of the power storage module 162 at the time in association with each other in an arbitrary storage device.

Examples of the operation of the power storage module 162 include at least one of charging, discharging, equalizing, and stopping. Examples of the state of the power storage module 162 include a voltage value, a current value, a remaining capacity, a SOC (State Of Charge), a temperature, a deterioration state, and at least one of the presence or absence of an abnormality in the power storage module 162.

The information on the deterioration state of the power storage module 162 includes information on the power storage module 162 at an arbitrary time point, (i) battery capacity in a fully charged state, (ii) SOC under predetermined temperature conditions, and (iii) SOH. (State Of Health), (iv) Equivalent series resistance (DCR, sometimes referred to as internal resistance), (v) Usage time, number of charges, charge amount integrated from the initial state or a predetermined timing. , Discharge amount, number of charge / discharge cycles, at least one of temperature stress element and overcurrent stress element, and the like can be exemplified. The information indicating the presence or absence of an abnormality in the power storage module 162 includes information indicating that the operation or state of the power storage module 162 is normal, information indicating that an abnormality has occurred in the operation or state of the power storage module 162, and the power storage module 162. Information indicating that an abnormality has occurred in the operation or state, information indicating the presence or absence of an alarm notifying the abnormality of the power storage module 162, and the like are exemplified.

The power supply control unit 240 may prevent the power storage unit 220 from being overcharged and overdischarged. The power supply control unit 240 may control the operation of the module equalization unit 230 to correct the voltage variation among the plurality of power storage modules 162 constituting the power storage unit 220.

The power supply control unit 240 may be realized by hardware, may be realized by software, or may be realized by hardware and software. When at least a part of the components constituting the power supply control unit 240 is realized by software, the components realized by the software define the operation related to the components in an information processing device having a general configuration. It may be realized by starting the program. The above-mentioned information processing device includes, for example, (i) a data processing device having a processor such as a CPU and GPU, a ROM, a RAM, a communication interface, and (ii) a keyboard, a touch panel, a camera, a microphone, various sensors, and a GPS receiver. It includes an input device such as (iii), an output device such as a display device, a speaker, and a vibration device, and a storage device (including an external storage device) such as (iv) memory and HDD. The processor may be an example of a computer.

The vehicle 100 may be an example of a moving body. The power supply system 140 may be an example of the first power storage system. The power supply system 140 may be an example of another power storage system mounted on the mobile body. The lead battery pack 142 may be an example of another power storage device that constitutes a part of another power storage system mounted on the mobile body.

The lithium battery pack 160 may be an example of a power storage system. The lithium battery pack 160 may be an example of the first power storage system when it is mounted on the vehicle 100 and used. The lithium battery pack 160 may be an example of a second power storage system when it is used by being incorporated in the stationary power supply 200. The power storage module 162 may be an example of a power storage device. The power storage module 162 that constitutes the stationary power supply 200 may be an example of another power storage device that constitutes the second power storage system. Any member that mediates the connection between the power storage module 162 and the weight module 164 may be an example of the first connection member. Any member that intervenes the connection of one power storage module 162 and the other power storage module 162 may be an example of the second connection member. The weight module 164 may be an example of a mass adjusting member. The storage case 166 may be an example of a storage member. The storage case 166 may be an example of the first connecting member.

The stationary power supply 200 may be an example of the second power storage system. The stationary power supply 200 may be an example of a stationary power storage system. The rack 222 may be an example of the second connecting member. The module equalization unit 230 may be an example of the second equalization unit.

In the present embodiment, the details of the lithium battery pack 160 have been described by taking as an example the case where the lithium battery pack 160 is mounted on a vehicle 100 which is an example of a mobile body. However, the moving body is not limited to the vehicle 100. Other examples of moving objects include ships, flying objects, and the like. Examples of ships include ships, hovercraft, personal watercraft, submarines, submarines, and underwater scooter. Examples of the flying object include an airplane, an airship or a balloon, a balloon, a helicopter, and a drone.

In the present embodiment, there is an example in which the module equalization unit 230 is arranged outside the power storage module 162 and is electrically connected to a plurality of power storage modules 162 constituting the power storage unit 220 when the stationary power supply 200 is assembled. As an example, an example of the module equalization unit 230 has been described. However, the module equalization unit 230 is not limited to this embodiment. In another embodiment, the module equalization unit 230 may be incorporated in at least a part of one or more lithium battery packs 160 constituting the power storage unit 220.

FIG. 3 schematically shows an example of the system configuration of the power storage module 162. In the present embodiment, the power storage module 162 includes a power storage cell group 320, a cell equalization unit 330, a control unit 340, a communication unit 350, and a housing 360. In the present embodiment, the housing 360 has a power connector 362, a communication connector 364, and a mounting portion 366.

In the present embodiment, the storage cell group 320 stores electric power and releases electric power. The storage cell group 320 includes one or more storage cells. When the storage cell group 320 includes a plurality of storage cells, at least a part of the plurality of storage cells may be connected in series, or at least a part of the plurality of storage cells may be connected in parallel. , At least a part of the plurality of storage cells may be connected in a matrix.

In the present embodiment, the cell equalization unit 330 equalizes the voltages of at least two storage cells among the plurality of storage cells included in the storage cell group 320. The operating principle of the cell equalizing unit 330 is not particularly limited, and an arbitrary balance correction device (sometimes referred to as an equalizing device) can be used.

The cell equalization unit 330 may have a plurality of balance correction devices. In one embodiment, when the storage cell group 320 has n storage cells (n is an integer of 2 or more), the cell equalization unit 330 has n balance correction devices. In another embodiment, when the storage cell group 320 has n storage cells (n is an integer of 2 or more), the cell equalization unit 330 has n-1 balance correction devices.

The cell equalization unit 330 may be realized by hardware, may be realized by software, or may be realized by a combination of hardware and software. The cell equalization unit 330 may be realized by an analog circuit, a digital circuit, or a combination of an analog circuit and a digital circuit. In one embodiment, the cell equalization unit 330 includes an active balance correction device. The active type balance correction device may be a balance correction device for transferring charges between two storage cells via an inductor, as described in Japanese Patent Application Laid-Open No. 2006-067742. It may be a balance correction device that transfers electric charges using a capacitor as described in Japanese Patent Application Laid-Open No. −210109. In another embodiment, the cell equalization unit 330 includes a passive balance correction device. The passive balance corrector uses, for example, an external resistor to emit extra charge.

In the present embodiment, the control unit 340 controls the operation of the power storage module 162. The control unit 340 may control the output of the power storage module 162. The control unit 340 controls, for example, at least one of the output power, the output voltage, the output current, and the output rate of the power storage module 162. The control unit 340 may control the charging of the power storage module 162. For example, the control unit 340 controls at least one of the charging power, charging voltage, charging current, and charging rate of the power storage module 162.

The control unit 340 may monitor at least one of the operation and the state of the power storage module 162. For example, the control unit 340 acquires information indicating at least one of the operation and the state of the power storage module 162 by receiving output signals from various sensors arranged in each part of the lithium battery pack 160. The control unit 340 may store the information indicating the time and the information indicating the state of the power storage module 162 at the time in association with each other in an arbitrary storage device. The control unit 340 may transmit the above information to an external information processing device.

Examples of the operation of the power storage module 162 include at least one of charging, discharging, equalizing, and stopping. Examples of the state of the power storage module 162 include a voltage value, a current value, a remaining capacity, a SOC (State Of Charge), a temperature, and at least one of a deteriorated state.

The control unit 340 may prevent the power storage unit 220 from being overcharged and overdischarged. The control unit 340 may control the operation of the module equalization unit 230 to correct the voltage variation among the plurality of power storage modules 162 constituting the power storage unit 220.

In the present embodiment, the communication unit 350 transmits / receives information between the control unit 340 and the information processing device external to the lithium battery pack 160. For example, examples of the external information processing device include a vehicle control unit 120, a power supply control unit 240, and a server (not shown) that monitors the state of the power storage module 162. For example, the communication unit 350 transmits / receives information via a communication connector 364 to and from an external information processing device of the lithium battery pack 160 by wired communication. The communication unit 350 may send and receive information by wireless communication to and from an information processing device external to the lithium battery pack 160 via the communication connector 364 and the antenna 168.

In the present embodiment, the housing 360 accommodates the power storage cell group 320 inside the housing 360. The housing 360 may accommodate at least one of the cell equalization unit 330, the control unit 340, and the communication unit 350. The housing 360 may hold at least one of the cell equalization unit 330, the control unit 340, and the communication unit 350 outside the cell equalization unit 330.

In this embodiment, the power connector 362 may be a power interface. In this embodiment, the communication connector 364 may be a communication interface.

In the present embodiment, the mounting portion 366 is used for connecting the power storage module 162 to the weight module 164 or another power storage module 162. The housing 360 may have a plurality of mounting portions 366.

In one embodiment, the mounting portion 366 used to connect the power storage module 162 and the weight module 164 in the assembly of the lithium battery pack 160 connects the power storage module 162 and the other power storage module 162 in the assembly of the stationary power supply 200. It may be used for. In another embodiment, in the assembly of the lithium battery pack 160, the mounting portion 366 used for connecting the power storage module 162 and the weight module 164, and in the assembly of the stationary power supply 200, the power storage module 162 and the other power storage module 162 It may be different from the mounting portion 366 used for connection.

[Specific configuration of each part of the vehicle 100]
Each part of the vehicle 100 may be realized by hardware, may be realized by software, or may be realized by hardware and software. When at least a part of the components constituting the vehicle 100 is realized by software, the component realized by the software is a program that defines the operation related to the component in an information processing device having a general configuration. It may be realized by starting. The above-mentioned information processing device includes, for example, (i) a data processing device having a processor such as a CPU and GPU, a ROM, a RAM, a communication interface, and (ii) a keyboard, a touch panel, a camera, a microphone, various sensors, and a GPS receiver. It includes an input device such as (iii), an output device such as a display device, a speaker, and a vibration device, and a storage device (including an external storage device) such as (iv) memory and HDD. The processor may be an example of a computer.

In the information processing device, the data processing device or the storage device may store a program. The above program may be stored on a non-temporary computer-readable recording medium. The above program is executed by the processor to cause the above information processing apparatus to execute the operation specified by the program.

The program may be stored on a non-temporary computer-readable recording medium. The program may be stored on a computer-readable medium such as a CD-ROM, DVD-ROM, memory, or hard disk, or may be stored on a storage device connected to a network. The program may be installed on a computer that constitutes at least a portion of the vehicle 100 from a computer-readable medium or a storage device connected to a network. By executing the program, the computer may function as at least a part of each part of the vehicle 100.

A program that causes the computer to function as at least a part of each part of the vehicle 100 may include a module that defines the operation of each part of the vehicle 100. These programs or modules work on a data processing device, an input device, an output device, a storage device, etc. to make the computer function as each part of the vehicle 100, or cause the computer to execute an information processing method in each part of the vehicle 100. ..

The information processing described in the program functions as a concrete means in which the software related to the program and various hardware resources of the vehicle 100 cooperate with each other when the program is read into the computer. Then, the above-mentioned specific means realizes the calculation or processing of information according to the purpose of use of the computer in the present embodiment, so that the vehicle 100 according to the purpose of use is constructed.

The storage cell group 320 may be an example of one or more storage cells and a plurality of storage cells. The cell equalization unit 330 may be an example of the first equalization unit. The control unit 340 may be an example of an information collection unit. The housing 360 may be an example of a housing. The mounting portion 366 may be an example of a connecting portion, a common connecting portion, a first connecting portion, and a second connecting portion.

An example of the assembly process of the lithium battery pack 160 will be described with reference to FIGS. 4, 5, 6 and 7. FIG. 4 shows an example of the connection process of the weight module 164 and the storage case 166. 5 and 6 show an example of a connection process between the power storage module 162 and the storage case 166. FIG. 7 shows a cross-sectional view of the lithium battery pack 160 assembled through the steps shown in FIGS. 4 to 6.

As shown in FIG. 4, in the present embodiment, screw holes 442 are formed on the upper surface of the weight module 164 at each of the four corners thereof. The screw hole 442 is used, for example, for connecting the power storage module 162 and the weight module 164.

In the present embodiment, of the side surfaces of the weight module 164, three screw holes 444 are formed on one side surface, and three screw holes 444 are also formed on the other side surface facing the one side surface (not shown). No.) Is formed. The screw hole 444 is used, for example, for connecting the weight module 164 and the storage case 166.

In the present embodiment, three openings 464 are formed on one side of the side surface of the storage case 166 at positions corresponding to each of the three screw holes 444 formed on one side surface of the weight module 164. ing. Similarly, of the side surfaces of the storage case 166, the other side surface facing the one side surface is located at a position corresponding to each of the three screw holes 444 formed on the other side surface of the weight module 164. Two openings 464 (not shown) are formed. The opening 464 is used, for example, for connecting the weight module 164 and the storage case 166. The opening 464 may be a screw hole.

In the present embodiment, of the side surfaces of the storage case 166, two openings 462 are formed in the vicinity of the upper end of each of the two side surfaces different from the one side surface and the other side surface. The opening 462 is used, for example, for connecting the power storage module 162 and the storage case 166. The opening 462 may be a screw hole.

In the process shown in FIG. 4, first, the weight module 164 is housed in a predetermined position inside the storage case 166. For example, the weight module 164 is located at the bottom of the containment case 166. At this time, the position of the screw hole 444 of the weight module 164 and the position of the opening 464 of the storage case 166 match. Next, screws 484 are inserted into each of the six openings 464 arranged in the storage case 166, and the weight module 164 and the storage case 166 are screwed together.

As shown in FIGS. 5 and 6, in the present embodiment, an opening for maintenance (not shown) is formed on the upper surface of the power storage module 162, and a lid member 562 for closing the opening is arranged. There is. Further, in the lower part of the power storage module 162, protrusions 564 are arranged at each of the four corners thereof. An opening for screwing is formed in each of the four protrusions 564. Similarly, on the upper portion of the power storage module 162, protrusions 566 are formed at each of the four corners thereof. Each of the four protrusions 566 is formed with an opening for screwing.

In the step shown in FIG. 5, first, the power storage module 162 is housed in a predetermined position inside the power storage module 162. For example, the position of the power storage module 162 is determined so that the position of the opening of the protrusion 566 arranged at the lower part of the power storage module 162 coincides with the position of the screw hole 442 arranged on the upper surface of the weight module 164. ..

Next, in the process shown in FIG. 6, a screw 682 is inserted into an opening provided in each of the four protrusions 566 arranged in the power storage module 162, and the power storage module 162 and the weight module 164 are screwed together. Module.

Through the above steps, the lithium battery pack 160 shown in FIG. 7 is assembled. In the present embodiment, the power storage module 162 is detachably attached to the weight module 164 using screws 682. Further, the weight module 164 is detachably attached to the storage case 166 using screws 484. As described above, the method of attaching the power storage module 162 and the weight module 164 is not limited to this embodiment. The power storage module 162 and the weight module 164 may be detachably connected using at least one of any physical, chemical and magnetic means.

As described above, according to the present embodiment, the power storage module 162 and the weight module 164 are detachably configured. More specifically, for example, each of the power storage module 162 and the weight module 164 is detachably attached to the storage case 166. As a result, the outer shape of the weight module 164 can be freely determined regardless of the outer shape of the power storage module 162. Further, the assembly process and the disassembly process of the lithium battery pack 160 can be simplified as compared with the prior art.

According to the present embodiment, when the lithium battery pack 160 is mounted on the vehicle 100, for example, the power storage module 162 and the weight module 164 are fixed to the storage case 166. As a result, the misalignment of the power storage module 162 and the weight module 164 is suppressed while the vehicle 100 is traveling. As a result, fluctuations in the position of the center of gravity of the lithium battery pack 160 during traveling of the vehicle 100 are suppressed. In addition, the generation of vibration or noise from the lithium battery pack 160 while the vehicle 100 is running is suppressed.

According to the present embodiment, when the power storage module 162 constituting the lithium battery pack 160 is reused as a part of the stationary power supply 200, the power storage module 162 and the weight module 164 are separated. This can simplify the structure of the rack 222. Further, the power storage unit 220 can be made smaller and lighter.

The protruding portion 564 may be an example of the connecting portion and the first connecting portion. The screw 682 may be an example of the first connecting member.

In the present embodiment, the details of the assembly process of the lithium battery pack 160 have been described by taking as an example the case where the power storage module 162 is attached to the weight module 164. However, the assembly process of the lithium battery pack 160 is not limited to this embodiment.

In other embodiments, the power storage module 162 may be attached to the weight module 164 and the storage case 166. For example, each of the plurality of protrusions 566 corresponds to each of the plurality of openings 462 formed in the storage case 166, and each of the plurality of protrusions 566 corresponds to the position of the corresponding opening 462. , Opening 766 is formed. Therefore, a suitable fastener may be inserted into the opening 462 and the opening 766 to connect the power storage module 162 and the storage case 166.

In the present embodiment, the power storage module 162 and the weight module 164, and the weight module 164 and the storage case 166 are connected by using screws. However, the connecting means is not limited to this embodiment. In other embodiments, any connecting means such as pinning, face tape, adhesives, magnets, etc. may be utilized. Further, the power storage module 162 and the weight module 164 may be directly connected, or the weight module 164 and the storage case 166 may be directly connected.

FIG. 8 schematically shows another example of a cross-sectional view of the lithium battery pack 160. Another example of how to assemble the lithium battery pack 160 will be described with reference to FIG. In the embodiment of FIG. 8, the power storage module 162 and the weight module 164 are not screwed, the weight module 164 and the storage case 166 are not screwed, and the power storage module 162 and the storage case 166 are screwed. In that respect, it differs from the embodiments described in relation to FIGS. 4-7. In the embodiment of FIG. 8, the other configurations may have the same characteristics as the embodiments described in connection with FIG.

In the present embodiment, the weight module 164 is housed inside the storage case 166, and at least a part of the weight module 164 is arranged between the power storage module 162 and the storage case 166. Further, the power storage module 162 is detachably attached to the storage case 166 by using the fastener 882. Specifically, the fastener 882 is inserted into the openings 766 arranged in each of the plurality of protrusions 566 arranged in the power storage module 162 and the openings 462 corresponding to each of the plurality of openings 766. The power storage module 162 and the storage case 166 are detachably connected to each other.

The fastener 882 may be an example of the first connecting member. The storage case 166 may be an example of the first connecting member.

In the present embodiment, an example of the lithium battery pack 160 has been described by taking the case where the power storage module 162 and the weight module 164 are not screwed as an example. However, the lithium battery pack 160 is not limited to this embodiment. In another embodiment, for example, a screw 682 is inserted into the opening 864 formed in the protrusion 564 of the power storage module 162, and the power storage module 162 and the weight module 164 are screwed together.

In this embodiment, the power storage module 162 and the weight module 164 are connected by using the storage case 166 and the fastener 882. However, the connecting means is not limited to this embodiment. In other embodiments, any connecting means such as pinning, face tape, adhesives, magnets, etc. may be utilized. Further, the power storage module 162 and the storage case 166 may be directly connected to each other.

FIG. 9 schematically shows an example of the structure of the rack 222. In this embodiment, the rack 222 includes a shelf member 922, a frame 924, and a positioning member 926. The rack 222 may include a plurality of shelf members 922. The rack 222 may include a plurality of positioning members 926.

In this embodiment, the shelf member 922 holds one or more power storage modules 162. In this embodiment, the frame 924 supports the shelf member 922. In the present embodiment, the positioning member 926 indicates a position where the power storage module 162 is attached to the shelf member 922. A plurality of positioning members 926 may be arranged on a single shelf member 922.

FIG. 10 schematically shows an example of a method of attaching the power storage module 162. In the present embodiment, the dimensions of the positioning member 926 are set to a length equal to or slightly smaller than the distance between the two protrusions 564 arranged at the lower part of the power storage module 162. As a result, as shown in FIG. 10, when the power storage module 162 is arranged at a predetermined position of the shelf member 922, the positioning member 926 is sandwiched between the two protrusions 564, so that the power storage module 162 Positioning becomes easy.

An opening is formed in the vicinity of both ends of the positioning member 926 on the upper surface of the shelf member 922 at a position corresponding to the opening arranged in the protrusion 564. For example, the power storage module 162 is attached to the rack 222 by connecting the opening arranged in the protrusion 564 and the opening arranged in the shelf member 922 with an arbitrary fastener 1082.

The protrusion 564 may be an example of a common connection. The fastener 1082 may be an example of a second connecting member.

In the present embodiment, the protrusion 564 used for connecting the power storage module 162 and the weight module 164 was used for connecting the power storage module 162 and the rack 222. However, the method of connecting the power storage module 162 and the rack 222 is not limited to this embodiment. In another embodiment, the power storage module 162 may include a first connection part used for connecting the power storage module 162 and the weight module 164 and a second connection part used for connecting the power storage module 162 and the rack 222. ..

The protruding portion 564 may be an example of one of the first connecting portion and the second connecting portion. The protrusion 566 may be another example of the first connection and the second connection.

FIG. 11 schematically shows an example of a production method of the lithium battery pack 160. According to the present embodiment, first, in S1122, (i) information indicating the mass of the lead battery pack 142 and (ii) information indicating the mass of the power storage module 162 are acquired. The information indicating the mass of the lead battery pack 142 includes information indicating the numerical value of the mass of the lead battery pack 142, information indicating the model number of the lead battery pack 142, and information indicating the model number of the power supply system 140 in which the lead battery pack 142 is incorporated. , Information indicating the model number of the vehicle 100 in which the lead battery pack 142 is incorporated is exemplified. Examples of the information indicating the mass of the power storage module 162 include information indicating a numerical value of the mass of the power storage module 162 and information indicating the model number of the power storage module 162. This information is entered by the user, for example. This information may be acquired from an external information processing device via a communication network.

At this time, information indicating the external dimensions of the lead battery pack 142 may be acquired. In addition, information indicating the center of gravity of the lead battery pack 142 may be acquired. The information indicating the center of gravity of the lead battery pack 142 includes information indicating the relative position of the center of gravity of the lead battery pack 142 with respect to the reference point of the lead battery pack 142, the relative position of the center of gravity of the lead battery pack 142 with respect to the reference point of the vehicle 100, and the like. Illustrated.

Next, in S1124, the weight module 164 is prepared. In one embodiment, a weight module 164 having a mass corresponding to the difference between the mass of the lead battery pack 142 and the mass of the power storage module 162 is prepared. In another embodiment, the mass of the weight module 164 is adjusted to a value corresponding to the difference between the mass of the lead battery pack 142 and the mass of the power storage module 162. Examples of the method of adjusting the mass of the weight module 164 include a method of combining a plurality of weights and a method of adjusting the amount of weights for filling the cavity provided in the weight module 164.

In addition, a storage case 166 is prepared. The external dimensions of the storage case 166 may be substantially the same as the external dimensions of the lead battery pack 142. The external dimensions of the storage case 166 are not limited to this.

Next, in S1126, the power storage module 162, the weight module 164, and the storage case 166 are assembled according to the procedures described in connection with, for example, FIGS. 4 to 7. At this time, the assembly work is performed so that the positional relationship between the outer shape of the storage case 166 and the center of gravity of the lithium battery pack 160 is substantially the same as the positional relationship between the outer shape of the lead battery pack 142 and the center of gravity of the lead battery pack 142. May be carried out. As a result, the lithium battery pack 160 including the power storage module 162 is produced.

The information indicating the mass of the lead battery pack 142 may be an example of the second mass information. The information indicating the mass of the power storage module 162 may be an example of the first mass information. The information indicating the external dimensions of the lead battery pack 142 may be an example of the dimensional information. The information indicating the position of the center of gravity of the lead battery pack 142 may be an example of the center of gravity information.

FIG. 12 schematically shows an example of a production method of the stationary power supply 200. According to the present embodiment, first, in S1222, a plurality of lithium battery packs 160 are prepared. Next, in S1224, each of the plurality of lithium battery packs 160 is disassembled. As a result, the power storage module 162 and the weight module 164 connected in the lithium battery pack 160 are separated. Next, in S1226, the stationary power supply 200 is assembled using the plurality of recovered power storage modules 162. Specifically, each of the plurality of power storage modules 162 is fixed to the rack 222. Further, a plurality of power storage modules 162 are electrically connected. As a result, the stationary power supply 200 is produced.

FIG. 13 shows an example of a computer 3000 in which a plurality of aspects of the present invention may be embodied in whole or in part.

The program installed on the computer 3000 causes the computer 3000 to function as an operation associated with the device according to an embodiment of the present invention or as one or more "parts" of the device, or the operation or the one or more "parts". A unit can be run and / or a computer 3000 can be run a process according to an embodiment of the invention or a stage of the process. Such a program may be executed by the CPU 3012 to cause the computer 3000 to perform a specific operation associated with some or all of the blocks of the flowcharts and block diagrams described herein.

The computer 3000 according to this embodiment includes a CPU 3012, a RAM 3014, a graphic controller 3016, and a display device 3018, which are connected to each other by a host controller 3010. The computer 3000 also includes an input / output unit such as a communication interface 3022, a hard disk drive 3024, a DVD-ROM drive 3026, and an IC card drive, which are connected to the host controller 3010 via the input / output controller 3020. The computer also includes legacy I / O units such as the ROM 3030 and keyboard 3042, which are connected to the I / O controller 3020 via an I / O chip 3040.

The CPU 3012 operates according to the programs stored in the ROM 3030 and the RAM 3014, thereby controlling each unit. The graphic controller 3016 acquires the image data generated by the CPU 3012 in a frame buffer or the like provided in the RAM 3014 or itself so that the image data is displayed on the display device 3018.

The communication interface 3022 communicates with other electronic devices via the network. The hard disk drive 3024 stores programs and data used by the CPU 3012 in the computer 3000. The DVD-ROM drive 3026 reads the program or data from the DVD-ROM 3001 and provides the program or data to the hard disk drive 3024 via the RAM 3014. The IC card drive reads the program and data from the IC card and / or writes the program and data to the IC card.

The ROM 3030 stores in it a boot program or the like executed by the computer 3000 at the time of activation, and / or a program depending on the hardware of the computer 3000. The input / output chip 3040 may also connect various input / output units to the input / output controller 3020 via a parallel port, a serial port, a keyboard port, a mouse port, and the like.

The program is provided by a computer-readable storage medium such as a DVD-ROM 3001 or an IC card. The program is read from a computer-readable storage medium, installed on a hard disk drive 3024, RAM 3014, or ROM 3030, which is also an example of a computer-readable storage medium, and executed by the CPU 3012. The information processing described in these programs is read by the computer 3000 and provides a link between the program and the various types of hardware resources described above. The device or method may be configured to implement the operation or processing of information in accordance with the use of computer 3000.

For example, when communication is executed between the computer 3000 and an external device, the CPU 3012 executes a communication program loaded in the RAM 3014, and performs communication processing on the communication interface 3022 based on the processing described in the communication program. You may order. Under the control of the CPU 3012, the communication interface 3022 reads and reads transmission data stored in a transmission buffer area provided in a recording medium such as a RAM 3014, a hard disk drive 3024, a DVD-ROM 3001, or an IC card. The data is transmitted to the network, or the received data received from the network is written to the reception buffer area or the like provided on the recording medium.

Further, the CPU 3012 makes the RAM 3014 read all or necessary parts of a file or database stored in an external recording medium such as a hard disk drive 3024, a DVD-ROM drive 3026 (DVD-ROM3001), or an IC card. Various types of processing may be performed on the data on the RAM 3014. The CPU 3012 may then write back the processed data to an external recording medium.

Various types of information such as various types of programs, data, tables, and databases may be stored in recording media and processed. The CPU 3012 describes various types of operations, information processing, conditional judgment, conditional branching, unconditional branching, and information retrieval described in various parts of the present disclosure with respect to the data read from the RAM 3014, and is specified by the instruction sequence of the program. Various types of processing may be performed, including / replacement, etc., and the results are written back to RAM 3014. Further, the CPU 3012 may search for information in a file, a database, or the like in the recording medium. For example, when a plurality of entries each having an attribute value of the first attribute associated with the attribute value of the second attribute are stored in the recording medium, the CPU 3012 is the first of the plurality of entries. The attribute value of the attribute of is searched for the entry that matches the specified condition, the attribute value of the second attribute stored in the entry is read, and the first attribute satisfying the predetermined condition is selected. You may get the attribute value of the associated second attribute.

The program or software module described above may be stored on or in a computer-readable storage medium on or near the computer 3000. In addition, a recording medium such as a hard disk or RAM provided in a dedicated communication network or a server system connected to the Internet can be used as a computer-readable storage medium, whereby the above program can be transmitted via the network. Provided to computer 3000.

The blocks in the flowchart and block diagram of this embodiment may represent a stage of the process in which the operation is performed or a "part" of the device responsible for performing the operation. Specific stages and "parts" are supplied with dedicated circuits, programmable circuits supplied with computer-readable instructions stored on computer-readable storage media, and / or computer-readable instructions stored on computer-readable storage media. It may be implemented by the processor. Dedicated circuits may include digital and / or analog hardware circuits and may include integrated circuits (ICs) and / or discrete circuits. Programmable circuits include logical products, logical sums, exclusive logical sums, negative logical products, negative logical sums, and other logical operations, such as, for example, field programmable gate arrays (FPGAs) and programmable logic arrays (PLA). , Flip-flops, registers, and reconfigurable hardware circuits, including memory elements.

The computer-readable storage medium may include any tangible device capable of storing instructions executed by the appropriate device, so that the computer-readable storage medium having the instructions stored therein is in a flow chart or block diagram. It will include a product that contains instructions that can be executed to create means for performing the specified operation. Examples of computer-readable storage media may include electronic storage media, magnetic storage media, optical storage media, electromagnetic storage media, semiconductor storage media, and the like. More specific examples of computer-readable storage media include floppy (registered trademark) disks, diskettes, hard disks, random access memory (RAM), read-only memory (ROM), and erasable programmable read-only memory (EPROM or flash memory). , Electrically erasable programmable read-only memory (EEPROM), static random access memory (SRAM), compact disc read-only memory (CD-ROM), digital versatile disc (DVD), Blu-free (registered trademark) disc, memory stick , Integrated circuit card and the like may be included.

Computer-readable instructions are assembler instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state-setting data, or object-oriented programming such as Smalltalk, JAVA®, C ++, etc. Includes either source code or object code written in any combination of one or more programming languages, including languages and traditional procedural programming languages such as the "C" programming language or similar programming languages. Good.

Computer-readable instructions are used to generate means for a general-purpose computer, a special-purpose computer, or the processor of another programmable data processing device, or a programmable circuit, to perform an operation specified in a flowchart or block diagram. General purpose computers, special purpose computers, or other programmable data processing locally or via a local area network (LAN), a wide area network (WAN) such as the Internet, etc. to execute the computer readable instructions. It may be provided in the processor of the device or in a programmable circuit. Examples of processors include computer processors, processing units, microprocessors, digital signal processors, controllers, microcontrollers and the like.

Although the present invention has been described above using the embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments. It will be apparent to those skilled in the art that various changes or improvements can be made to the above embodiments. Further, to the extent that there is no technical contradiction, the matters described for the specific embodiment can be applied to other embodiments. It is clear from the description of the scope of claims that the form to which such a modification or improvement is added may be included in the technical scope of the present invention.

The order of execution of operations, procedures, steps, steps, etc. in the devices, systems, programs, and methods shown in the claims, specification, and drawings is particularly "before" and "prior to". It should be noted that it can be realized in any order unless the output of the previous process is used in the subsequent process. Even if the scope of claims, the specification, and the operation flow in the drawings are explained using "first," "next," etc. for convenience, it means that it is essential to carry out in this order. It's not a thing.

100 vehicle, 120 vehicle control unit, 130 drive system, 140 power supply system, 142 lead battery pack, 160 lithium battery pack, 162 power storage module, 164 weight module, 166 storage case, 168 antenna, 200 stationary power supply, 220 power storage unit, 222 rack, 230 module equalization unit, 240 power supply control unit, 320 power storage cell group, 330 cell equalization unit, 340 control unit, 350 communication unit, 360 housing, 362 power connector, 364 communication connector, 366 mounting unit, 442 Screw holes, 444 screw holes, 462 openings, 464 openings, 484 screws, 562 lid members, 564 protrusions, 566 protrusions, 682 screws, 766 openings, 864 openings, 882 fasteners, 922 shelf members, 924 frames, 926 positioning Parts, 1082 Fasteners, 3000 Computers, 3001 DVD-ROM, 3010 Host Controller, 3012 CPU, 3014 RAM, 3016 Graphic Controller, 3018 Display Device, 3020 I / O Controller, 3022 Communication Interface, 3024 Hard Disk Drive, 3026 DVD-ROM Drive , 3030 ROM, 3040 I / O chip, 3042 keyboard

Claims (16)

It is a power storage device
When the power storage device constitutes a part of a first power storage system configured to be mounted on a mobile body and used, the power storage device uses the first connection member or directly, the first power storage device. Detachably connected to the mass adjustment member for adjusting the mass of the power storage system,
When the power storage device constitutes a part of the second power storage system that is used without being mounted on the mobile body, the power storage device uses the second connection member or directly, the second power storage system. Detachable connection with other power storage devices that make up
Power storage device. The power storage device and the mass adjusting member are detachably configured.
When the power storage device that has formed a part of the first power storage system constitutes a part of the second power storage system, the power storage device is separated from the mass adjusting member and is said to be the other. Connected to the power storage device,
The power storage device according to claim 1. The mass adjusting member does not have a storage cell for storing electric power.
The mass of the mass adjusting member is set so that the total mass of the first power storage system becomes a predetermined value.
The power storage device according to claim 1 or 2. With one or more storage cells
A housing for accommodating one or more storage cells and
To prepare
The power storage device according to any one of claims 1 to 3. With multiple storage cells
A first equalization unit that equalizes the voltages of at least two storage cells among the plurality of storage cells,
Further prepare
The power storage device according to claim 4. Further provided with a connecting portion used for connection with the mass adjusting member or the other power storage device.
The power storage device according to any one of claims 1 to 5. When the power storage device constitutes a part of the first power storage system, the connection portion is used for connection with the mass adjusting member, and the power storage device constitutes a part of the second power storage system. In some cases, it has a common connection part used for connection with the other power storage device.
The power storage device according to claim 6. The connection part
The first connecting portion used for connecting to the mass adjusting member and
A second connection portion arranged at a position different from the first connection portion and used for connection with the other power storage device, and a second connection portion.
Have,
The power storage device according to claim 6 or 7. The power storage device according to any one of claims 1 to 8.
With the mass adjusting member
A power storage system equipped with. Further provided with an accommodating member accommodating the power storage device and the mass adjusting member,
The mass adjusting member is detachably attached to the accommodating member, and is attached to the accommodating member.
The power storage device is detachably attached to the mass adjusting member and the accommodating member using or directly from the first connecting member.
The power storage system according to claim 9. Further provided with an accommodating member accommodating the power storage device and the mass adjusting member,
At least a part of the mass adjusting member is arranged between the accommodating member and the power storage device.
The mass adjusting member is detachably attached to the accommodating member by detachably attaching the power storage device to the accommodating member using or directly from the first connecting member.
The power storage system according to claim 9. An information collecting unit for collecting information indicating at least one of the operation and the state of the power storage device is further provided.
The power storage system according to any one of claims 9 to 11. A stationary power storage system including the power storage device according to any one of claims 1 to 8.
The power storage system
With the plurality of the power storage devices
A second equalizing unit that equalizes the voltages of the plurality of power storage devices,
A stationary power storage system equipped with. It is a method of producing a power storage system equipped with a power storage device.
The first mass information acquisition step of acquiring the first mass information indicating the mass of the power storage device, and
A second mass information acquisition stage for acquiring second mass information indicating the mass of another power storage device that constitutes a part of another power storage system mounted on the mobile body, and
The first preparatory step of preparing a mass adjusting member having a mass corresponding to the difference between the mass indicated by the second mass information and the mass indicated by the first mass information.
The assembly stage of assembling the power storage device and the mass adjusting member to manufacture the power storage system, and
A method of producing a power storage system. The dimensional information acquisition stage for acquiring dimensional information indicating the external dimensions of the other power storage system, and
The center of gravity information acquisition stage for acquiring the center of gravity information indicating the position of the center of gravity of the other power storage system, and
A second preparatory step of preparing an accommodating member having the external dimensions indicated by the dimensional information and accommodating the power storage device and the mass adjusting member inside.
Have more
In the assembly stage, the positional relationship between the outer shape of the accommodating member and the center of gravity of the power storage system is the positional relationship between the outer shape of the other power storage system and the center of gravity of the other power storage system indicated by the center of gravity information. Including a step of attaching the power storage device and the mass adjusting member to the accommodating member so as to be substantially the same.
The method for producing the power storage system according to claim 14. It is a method of producing a stationary power storage system.
A stage of preparing a plurality of other power storage systems including a power storage device for storing electric power and a mass adjusting member for adjusting the mass of the other power storage system.
A step of separating each of the plurality of power storage devices constituting each of the plurality of other power storage systems and the corresponding mass adjusting member.
A step of electrically connecting the plurality of power storage devices separated from the corresponding mass adjusting member, and
A method of producing a stationary power storage system having the above.