JP7376063B2 - Energy storage system - Google Patents

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.

BACKGROUND ART In recent years, when a secondary battery installed in a vehicle deteriorates, it has been considered to reuse the secondary battery as a stationary secondary battery (for example, Patent Document 1). In addition, when increasing or decreasing the number of battery modules that make up the battery pack installed in a vehicle, dummy modules can be installed within the battery pack in accordance with the increase or decrease in the number of battery modules, thereby improving the weight balance of the battery pack. Techniques for preventing deterioration are known (for example, Patent Documents 2 and 3).
[Prior art documents]
[Patent document]
[Patent Document 1] Japanese Patent Publication No. 2013-218909 [Patent Document 2] Japanese Patent No. 6304426 [Patent Document 3] Japanese Patent No. 5208653

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

In a first aspect of the present invention, a power storage device is provided. When the above power storage device constitutes a part of a first power storage system configured to be used while being mounted on a moving body, the above power storage device can be connected to , is detachably connected to a mass adjustment member for adjusting the mass of the first power storage system. When the above power storage device constitutes a part of a second power storage system that is used without being mounted on a moving body, the above power storage device can be connected to the second power storage system using a second connection member or directly. 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 adjustment member may be configured to be detachable. In the above power storage device, when the power storage device that formed part of the first power storage system forms part of the second power storage system, the power storage device is separated from the mass adjustment member and It may be connected to a power storage device. In the above power storage device, the mass adjustment member does not need to have a power storage cell that stores power. In the above power storage device, the mass of the mass adjustment member may be set so that the entire mass of the first power storage system becomes a predetermined value.

The above power storage device may include one or more power storage cells. The above power storage device may include a casing that houses one or more power storage cells. The above power storage device may include a plurality of power storage cells. The above 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 power storage device may include a mass adjustment member or a connection portion used for connection to another power storage device. In the above power storage device, the connection portion is used for connection with the mass adjustment member when the power storage device forms part of the first power storage system, and when the power storage device forms part of the second power storage system. In some cases, it may have a common connection part used for connection with other power storage devices. In the above power storage device, the connection portion includes a first connection portion used for connection to the mass adjustment member and a second connection portion disposed at a different position from the first connection portion and used for connection to another power storage device. It may have a part.

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

The above power storage system may include a housing member that houses the power storage device and the mass adjustment member. In the above power storage system, the mass adjustment member may be detachably attached to the housing member. In the above power storage system, the power storage device may be detachably attached to the mass adjustment member and the housing member using the first connection member or directly.

The above power storage system may include a housing member that houses the power storage device and the mass adjustment member. In the above power storage system, at least a portion of the mass adjustment member may be disposed between the housing member and the power storage device. In the above power storage system, the power storage device may be removably attached to the housing member using the first connection member or directly, and the mass adjustment member may be removably attached to the housing member.

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

In a third aspect of the present invention, a stationary power storage system is provided. The stationary power storage system described above includes, for example, the power storage device according to the first aspect. The stationary power storage system described above 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.

In a fourth aspect of the present invention, a method of producing a power storage system including a power storage device is provided. 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 object. The above method includes, for example, a first preparation step of preparing a mass adjustment 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 the power storage device and the mass adjustment member to produce a power storage system.

The above method may include a dimensional information acquisition step of acquiring dimensional information indicating external dimensions of another power storage system. The above method may include 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 may include a second preparation step of preparing an accommodating member having external dimensions indicated by the dimensional information and for accommodating the power storage device and the mass adjustment member therein. In the above method, in the assembly step, the positional relationship between the outer shape of the housing member and the center of gravity of the power storage system is approximately the same 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. The method may include attaching the power storage device and the mass adjustment member to the housing member so that the power storage device and the mass adjustment member are the same.

In a fifth aspect of the invention, a method of producing a stationary power storage system is provided. The above method includes, for example, preparing a plurality of other power storage systems each including a power storage device that stores electric power and a mass adjustment member that adjusts the mass of the other power storage system. It has stages. The above method includes, for example, separating each of the plurality of power storage devices constituting each of the plurality of other power storage systems and the corresponding mass adjustment member. The above method includes, for example, electrically connecting a plurality of power storage devices separated from a corresponding mass adjustment member.

Note that the above summary of the invention does not list all the necessary features of the invention. Furthermore, subcombinations of these features may also constitute inventions.

An example of the application of the lithium battery pack 160 is schematically shown. Another example of the use of the lithium battery pack 160 is schematically shown. An example of a system configuration of power storage module 162 is schematically shown. An example of an assembly process of a lithium battery pack 160 is schematically shown. An example of an assembly process of a lithium battery pack 160 is schematically shown. An example of an assembly process of a lithium battery pack 160 is schematically shown. An example of a cross-sectional view of a lithium battery pack 160 is schematically shown. Another example of a cross-sectional view of a lithium battery pack 160 is schematically shown. An example of the structure of the rack 222 is schematically shown. An example of how to attach the power storage module 162 is schematically shown. An example of a method for producing a lithium battery pack 160 is schematically shown. An example of a method for producing the stationary power supply 200 is schematically shown. An example of a system configuration of a computer 3000 is schematically shown.

Hereinafter, the present invention will be explained through embodiments of the invention, but the following embodiments do not limit the invention according to the claims. Not all combinations of features described in the embodiments are essential to the solution of the invention. Further, embodiments will be described with reference to the drawings, but in the description of the drawings, the same or similar parts may be given the same reference numerals and redundant explanations may be omitted.

In this specification, "to be electrically connected" is not limited to the case where a specific element and another element are directly connected. A third element may be interposed between a specific element and another element. Furthermore, the present invention is not limited to the case where a specific element and other elements are physically connected. For example, the input and output windings of a transformer are not physically connected, but are electrically connected. Furthermore, not only when a specific element and another element are actually electrically connected, but also when a storage cell and a balance correction section are electrically connected, a specific element and another element are This also includes cases where they are electrically connected. Also, "connected in series" indicates that a specific element and another element are electrically connected in series, and "connected in parallel" refers to a specific element and other elements and are electrically connected in parallel.

The structure and usage of the lithium battery pack 160 will be outlined using FIGS. 1 and 2. FIG. 1 schematically shows an example of an application of a lithium battery pack 160. Specifically, the details of the lithium battery pack 160 will be explained using FIG. 1, 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 application of the lithium battery pack 160. Specifically, the details of the lithium battery pack 160 will be explained using FIG. 2, taking as an example the case where the lithium battery pack 160 is reused as a part of the stationary power source 200.

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

As shown in FIG. 2, in this 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 this embodiment, power storage unit 220 includes a rack 222.

[Summary of vehicle 100]
In this embodiment, vehicle 100 uses power provided by power supply system 140. Vehicle 100 may move using electrical power provided by power system 140. Examples of the vehicle 100 include an automobile, a motorcycle, a working machine, and a train. Motorcycles include (i) motorcycles, (ii) tricycles, (iii) stand-up vehicles with power units, such as Segway (registered trademark), kickboards with power units (registered trademark), and skateboards with power units. Examples include two-wheeled vehicles and tricycles. Examples of working machines include forklifts, agricultural machines, and civil engineering machines.

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

In this embodiment, the drive system 130 drives the vehicle 100 according to instructions from the vehicle control unit 120. Drive system 130 may drive vehicle 100 using power provided from power system 140.

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

In this embodiment, the lead battery pack 142 stores and releases power. Lead battery pack 142 includes one or more lead acid battery storage cells. Inside the lead battery pack 142, at least some of the plurality of electrical storage cells may be connected in series, at least some of the plurality of electrical storage cells may be connected in parallel, and at least some of the plurality of electrical storage cells may be connected in parallel. Some of them may be connected in a matrix.

[Specific configuration of each part of vehicle 100]
Each part of vehicle 100 may be realized by hardware, may be realized by software, or may be realized by both hardware and software. When at least some of the components constituting the vehicle 100 are implemented by software, the components implemented by the software are implemented by a program that specifies operations regarding the components in an information processing device with a general configuration. This may be realized by starting the . The above information processing device includes, for example, (i) a data processing device having a processor such as a CPU or GPU, a ROM, a RAM, a communication interface, etc., and (ii) a keyboard, a touch panel, a camera, a microphone, various sensors, and a GPS receiver. (iii) an output device such as a display device, a speaker, a vibration device, and (iv) a storage device (including an external storage device) such as a memory or HDD. A processor may be an example of a computer.

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

The program may be stored on a non-transitory computer-readable storage medium. The program may be stored on a computer readable medium such as a CD-ROM, DVD-ROM, memory, hard disk, etc., or may be stored on a storage device connected to a network. The program may be installed on a computer forming at least a portion of 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.

The 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 act on the data processing device, input device, output device, storage device, etc. to cause the computer to function as each part of the vehicle 100 or to 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 software related to the program and various hardware resources of the vehicle 100 cooperate by reading the program into a computer. Then, the above-mentioned specific means realizes calculation or processing of information according to the purpose of use of the computer in this embodiment, thereby constructing the vehicle 100 according to the purpose of use.

[Overview of lithium battery pack 160]
In this embodiment, the lithium battery pack 160 is configured to be mounted on the vehicle 100 and used. 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 a lithium battery pack 160 is installed in the vehicle 100 in place of the lead battery pack 142. Each part of vehicle 100 may be designed in consideration of the mass of lead battery pack 142. Therefore, the mass of the lithium battery pack 160 is preferably approximately the same as the mass of the lead battery pack 142.

The mass of the lithium battery pack 160 and the mass of the lead battery pack 142 are substantially the same not only when the mass of the lithium battery pack 160 and the mass of the lead battery pack 142 are the same; This also includes a case where the difference between the mass of battery pack 160 and the mass of lead battery pack 142 is within an allowable range based on the design of 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 is 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, even more 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 vehicle 100 may be designed in consideration of the relative position of the center of gravity of lead battery pack 142 with respect to an arbitrary reference point of vehicle 100. The reference point of vehicle 100 may be the center of gravity of vehicle 100. The reference point of vehicle 100 may be the center of gravity of vehicle 100 when lead battery pack 142 or lithium battery pack 160 is removed.

Therefore, in one embodiment, the relative position of the center of gravity of the lithium battery pack 160 with respect to the reference point of the vehicle 100 is the same as the relative position of the center of gravity of the lithium battery pack 160 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 lithium battery pack 160 in vehicle 100 is determined so as to be substantially the same as the relative position of the center of gravity. The above-mentioned substantially same range or degree may be determined by considering the range or degree of allowable error or variation in the design of the vehicle 100.

In other embodiments, (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) the position when the lead battery pack 142 is mounted on 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, if the external dimensions of the lithium battery pack 160 are approximately 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 approximately the same as the position of the center of gravity of the lead battery pack 142. preferable. The above-mentioned substantially same range or degree may be determined by considering the range or degree of allowable error or variation in the design of the vehicle 100.

In still other embodiments, (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. 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, 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. 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 is approximately the same as the moment of inertia of the lithium battery pack 160 when the reference point of the vehicle 100 is the center of rotation. , the mass of the lithium battery pack 160, and the location of the center of gravity of the lithium battery pack 160 are determined. The above-mentioned substantially same range or degree may be determined by considering the range or degree of allowable error or variation 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. It will be done. Furthermore, the lithium battery pack 160 removed from the vehicle 100 is reused as part of the stationary power source 200. More specifically, first, a plurality of lithium battery packs 160 that have been 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. Thereby, power storage module 162 and weight module 164 are separated. Thereafter, the power storage module 162 separated from the weight module 164 is attached to the rack 222 and reused as part of the power storage unit 220 of the stationary power supply 200.

[Summary of each part of lithium battery pack 160]
In this embodiment, the power storage module 162 stores power and releases 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, power storage module 162 forms part of lithium battery pack 160. In other embodiments, power storage module 162 constitutes part of stationary power supply 200.

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

For example, when power storage module 162 and weight module 164 are coupled by welding, power storage module 162 and weight module 164 are not detachable. On the other hand, when the power storage module 162 and the weight module 164 are coupled 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 detachable.

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

In this 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 another part of the storage case 166 are directly connected. or indirectly connected. Thereby, power storage module 162 and weight module 164 are connected.

As shown in FIG. 2, when a plurality of power storage modules 162 constitute a part of the stationary power source 200, one power storage module 162 is directly or indirectly connected to the other power storage modules 162 that constitute the stationary power source 200. 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 other embodiments, one power storage module 162 and another power storage module 162 may be indirectly connected via an arbitrary member. Optional members selected from the group consisting of (i) fasteners, ropes, bands, cloth, and plates, rods, boxes or bags of various materials, (ii) tapes and adhesives, and (iii) magnets. At least one of the following is exemplified. Examples of fasteners include pins, screws, and hook-and-loop fasteners.

In this embodiment, one power storage module 162 and one part of the rack 222 are connected directly or indirectly, and another power storage module 162 and another part of the rack 222 are connected directly or indirectly. Connected indirectly. As a result, one power storage module 162 and the other power storage module 162 are indirectly connected via the rack 222. Note that 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. Weight module 164 may be used to adjust the center of gravity of lithium battery pack 160. Weight module 164 may have a power storage cell or may not have a power storage cell.

In one embodiment, the mass of the weight module 164 is set such 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 approximately the same as the total mass of the lead battery pack 142.

In other embodiments, the mass of weight module 164 is determined by (i) the moment of inertia of lithium battery pack 160 about a reference point of vehicle 100 when lithium battery pack 160 is installed in vehicle 100; and (ii) ) When the lead battery pack 142 is mounted on the vehicle 100, the moment of inertia of the lead battery pack 142 around the reference point of the vehicle 100 may be set to be substantially the same. The reference point of vehicle 100 may be the center of gravity of vehicle 100. The reference point of vehicle 100 may be the center of gravity of vehicle 100 when lead battery pack 142 or 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 approximately the same as or larger than the capacity of the lead battery pack 142. . Here, lead-acid batteries generally have a larger mass per capacity than lithium batteries or lithium ion batteries. Therefore, even if the external dimensions of the lithium battery pack 160 are approximately the same as the external dimensions of the lead battery pack 142 or smaller than the external dimensions of the lead battery pack 142, it is possible to By arranging the weight module 164 having a certain mass, the mass of the lithium battery pack 160 and the position of the center of gravity of the lithium battery pack 160 can be adjusted.

In this embodiment, the housing case 166 holds the power storage module 162 and the weight module 164. The housing case 166 may house the power storage module 162 and the weight module 164 therein. The housing case 166 has an opening for housing the power storage module 162 and the weight module 164 therein and for taking out the power storage module 162 and the weight module 164 from the inside thereof. The storage case 166 may include 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 an information processing device outside the lithium battery pack 160. The antenna 168 may be placed outside the housing case 166. If the housing case 166 has an opening, the antenna 168 may be placed inside the housing case 166.

[Overview of stationary power supply 200]
In this embodiment, the stationary power source 200 is used without being mounted on the vehicle 100. According to the embodiment described 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 removed from the vehicle. 100 power supply system 140.

Lithium battery pack 160 removed from power supply system 140 is disassembled, and 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 configured to be detachable. Therefore, at this stage, power storage module 162 and weight module 164 can be separated. Then, the power storage module 162 is connected to other power storage modules 162 while being separated from the weight module 164. Further, a plurality of power storage modules 162 are electrically connected.

Thereby, the collected power storage module 162 is reused as part of the power storage unit 220 of the stationary power source 200. The weight module 164 separated from the power storage module 162 may be reused to adjust the mass of the lithium battery pack 160 without being mounted on the rack 222. According to this embodiment, the weight module 164 is not mounted on the rack 222, so the cost and space of the rack 222 can be reduced.

[Summary of each part of stationary power supply 200]
In this embodiment, the power storage unit 220 stores power and releases power. Power storage unit 220 includes one or more power storage modules 162. For example, each of the plurality of power storage modules 162 collected from each of the plurality of lithium battery packs 160 is attached to a 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 other embodiments, each of the plurality of power storage modules 162 and the rack 222 may be indirectly connected via an arbitrary member. The optional member may include at least one member selected from the group consisting of (i) fasteners, ropes, bands, cloth, and plates or bars of various materials, (ii) tape and adhesives, and (iii) magnets. One example is given below. Examples of fasteners include pins, screws, and hook-and-loop fasteners.

In this 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 that constitute the power storage unit 220. The operating principle of the module equalization section 230 is not particularly limited, and any balance correction device (sometimes referred to as an equalization device) can be used.

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

The module equalization unit 230 may be realized by hardware, software, or a combination of hardware and software. The module equalization unit 230 may be implemented by an analog circuit, a digital circuit, or a combination of an analog circuit and a digital circuit. In one embodiment, the module equalizer 230 includes an active balance correction device. The active type balance correction device may be a balance correction device that moves charges between two power storage modules 162 via an inductor, as described in Japanese Patent Application Laid-Open No. 2006-067742. The balance correction device includes a balance correction device that moves charges using a capacitor, as described in Japanese Patent No. 2012-210109. In other embodiments, the module equalizer 230 may be a passive balance correction device. A passive balance correction device uses, for example, an external resistor to discharge unnecessary charges.

In this 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 charging of the stationary power supply 200. For example, the power supply control unit 240 controls at least one of 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 state of each of the plurality of power storage modules 162 that constitute the power storage unit 220. The power supply control unit 240 may associate information indicating the time with information indicating the state of the power storage module 162 at the time and store the information in an arbitrary storage device.

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

Information regarding the deterioration state of the power storage module 162 includes information about the power storage module 162 at any point in time, including (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) Accumulated usage time, number of charging times, and charging amount from the initial state or predetermined timing , the amount of discharge, the number of charge/discharge cycles, at least one of a temperature stress element, an overcurrent stress element, and the like. The information indicating the presence or absence of an abnormality in the electricity storage module 162 includes information indicating that the operation or state of the electricity storage module 162 is normal, information indicating that an abnormality has occurred in the operation or state of the electricity storage module 162, and information indicating that an abnormality has occurred in the operation or state of the electricity storage module 162. Examples include information indicating that an abnormality has occurred in the operation or state, and information indicating the presence or absence of an alarm to notify of an abnormality in the power storage module 162.

Power supply control unit 240 may prevent overcharging and overdischarging of power storage unit 220. The power supply control unit 240 may control the operation of the module equalization unit 230 to correct voltage variations among the plurality of power storage modules 162 that constitute 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 both hardware and software. When at least some of the components constituting the power supply control unit 240 are realized by software, the components realized by the software specify the operations related to the components in an information processing device with a general configuration. This may be realized by starting a program. The above information processing device includes, for example, (i) a data processing device having a processor such as a CPU or GPU, a ROM, a RAM, a communication interface, etc., and (ii) a keyboard, a touch panel, a camera, a microphone, various sensors, and a GPS receiver. (iii) an output device such as a display device, a speaker, a vibration device, and (iv) a storage device (including an external storage device) such as a memory or HDD. A processor may be an example of a computer.

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

Lithium battery pack 160 may be an example of a power storage system. When the lithium battery pack 160 is mounted on the vehicle 100 and used, it may be an example of a first power storage system. When the lithium battery pack 160 is incorporated into the stationary power source 200 and used, it may be an example of a second power storage system. 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 connects the power storage module 162 and the weight module 164 may be an example of a first connection member. Any member that intervenes in the connection between one power storage module 162 and another power storage module 162 may be an example of the second connection member. Weight module 164 may be an example of a mass adjustment member. The storage case 166 may be an example of a storage member. The storage case 166 may be an example of the first connection member.

Stationary power supply 200 may be an example of a 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 a second connection member. The module equalization section 230 may be an example of a second equalization section.

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

In this embodiment, a case is exemplified 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 that constitute the power storage unit 220 when the stationary power supply 200 is assembled. An example of the module equalization unit 230 has been described as follows. However, the module equalization unit 230 is not limited to this embodiment. In other embodiments, module equalization section 230 may be built into at least a portion of one or more lithium battery packs 160 that constitute power storage section 220 .

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

In this embodiment, the power storage cell group 320 stores power and releases power. Power storage cell group 320 includes one or more power storage cells. When the power storage cell group 320 includes a plurality of power storage cells, at least a portion of the plurality of power storage cells may be connected in series, and at least a portion of the plurality of power storage cells may be connected in parallel. , at least some of the plurality of storage cells may be connected in a matrix.

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

The cell equalization unit 330 may include a plurality of balance correction devices. In one embodiment, when the power storage cell group 320 has n power 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 power storage cell group 320 has n power 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, software, or 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 balance correction device may be a balance correction device that moves charges between two storage cells via an inductor, as described in Japanese Patent Application Laid-open No. 2006-067742, and Japanese Patent Application Laid-Open No. 2012 A balance correction device that uses a capacitor to move charges, such as that described in Japanese Patent No. 210109, may also be used. In other embodiments, the cell equalization unit 330 includes a passive balance correction device. A passive balance correction device uses, for example, an external resistor to discharge unnecessary charges.

In this 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. Control unit 340 controls, for example, at least one of output power, output voltage, output current, and output rate of power storage module 162. The control unit 340 may control charging of the power storage module 162. For example, the control unit 340 controls at least one of 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 state of the power storage module 162. For example, the control unit 340 obtains information indicating at least one of the operation and 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 associate information indicating the time with information indicating the state of the power storage module 162 at the time and store the information in an arbitrary storage device. The control unit 340 may transmit the above information to an external information processing device.

Examples of operations of power storage module 162 include at least one of charging, discharging, equalization, and stopping. Examples of the state of the power storage module 162 include at least one of a voltage value, a current value, a remaining capacity, an SOC (State of Charge), a temperature, and a deterioration state.

Control unit 340 may prevent overcharging and overdischarging of power storage unit 220. The control unit 340 may control the operation of the module equalization unit 230 to correct voltage variations among the plurality of power storage modules 162 that constitute the power storage unit 220.

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

In this embodiment, the housing 360 accommodates the power storage cell group 320 therein. The housing 360 may house at least one of the cell equalization section 330, the control section 340, and the communication section 350 therein. The housing 360 may retain at least one of the cell equalization section 330, the control section 340, and the communication section 350 outside thereof.

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

In this embodiment, the attachment portion 366 is used to connect the power storage module 162 to the weight module 164 or another power storage module 162. The housing 360 may have a plurality of attachment parts 366.

In one embodiment, the mounting portion 366 used to connect the power storage module 162 and the weight module 164 in assembling the lithium battery pack 160 may be used to connect the power storage module 162 and other power storage modules 162 in assembling the stationary power source 200. May be used for. In another embodiment, when assembling the lithium battery pack 160, the mounting portion 366 used to connect the power storage module 162 and the weight module 164, and when assembling the stationary power source 200, the power storage module 162 and other power storage modules 162 are connected. The attachment portion 366 used for connection may be different.

[Specific configuration of each part of vehicle 100]
Each part of vehicle 100 may be realized by hardware, may be realized by software, or may be realized by both hardware and software. When at least some of the components constituting the vehicle 100 are implemented by software, the components implemented by the software are implemented by a program that specifies operations regarding the components in an information processing device with a general configuration. This may be realized by starting the . The above information processing device includes, for example, (i) a data processing device having a processor such as a CPU or GPU, a ROM, a RAM, a communication interface, etc., and (ii) a keyboard, a touch panel, a camera, a microphone, various sensors, and a GPS receiver. (iii) an output device such as a display device, a speaker, a vibration device, and (iv) a storage device (including an external storage device) such as a memory or HDD. A processor may be an example of a computer.

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

The program may be stored on a non-transitory computer-readable recording medium. The program may be stored on a computer readable medium such as a CD-ROM, DVD-ROM, memory, hard disk, etc., or may be stored on a storage device connected to a network. The program may be installed on a computer forming at least a portion of 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.

The 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 act on the data processing device, input device, output device, storage device, etc. to cause the computer to function as each part of the vehicle 100 or to 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 software related to the program and various hardware resources of the vehicle 100 cooperate by reading the program into a computer. Then, the above-mentioned specific means realizes calculation or processing of information according to the purpose of use of the computer in this embodiment, thereby constructing the vehicle 100 according to the purpose of use.

The power storage cell group 320 may be an example of one or more power storage cells and a plurality of power storage cells. The cell equalization unit 330 may be an example of a 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 attachment portion 366 may be an example of a connection portion, a common connection portion, a first connection portion, and a second connection portion.

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

As shown in FIG. 4, in this embodiment, screw holes 442 are formed on the top surface of the weight module 164 at each of its four corners. The screw hole 442 is used, for example, to connect the power storage module 162 and the weight module 164.

In this embodiment, three screw holes 444 are formed on one side of the weight module 164, and three screw holes 444 (not shown) are formed on the other side opposite to the one side. ) is formed. The screw hole 444 is used, for example, to connect the weight module 164 and the housing case 166.

In this embodiment, three openings 464 are formed on one side of the storage case 166 at positions corresponding to the three screw holes 444 formed on one side of the weight module 164. ing. Similarly, on the other side of the storage case 166 opposite to the one side, three screw holes 444 are provided at positions corresponding to the three screw holes 444 formed on the other side of the weight module 164. Two openings 464 (not shown) are formed. The opening 464 is used, for example, to connect the weight module 164 and the housing case 166. Opening 464 may be a screw hole.

In this embodiment, two openings 462 are formed near the upper end of each of two side surfaces of the storage case 166 that are different from the one side surface and the other side surface. Opening 462 is used, for example, to connect power storage module 162 and housing case 166. 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 housing case 166. For example, weight module 164 is disposed at the bottom of storage 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 this embodiment, a maintenance opening (not shown) is formed on the top surface of the power storage module 162, and a lid member 562 is disposed to close the opening. There is. Further, protrusions 564 are arranged at each of the four corners of the lower part of the power storage module 162. Each of the four protrusions 564 has an opening for screwing. Similarly, protrusions 566 are formed at each of the four corners of the upper part of the power storage module 162. Each of the four protrusions 566 has an opening for screwing.

In the process shown in FIG. 5, first, the power storage module 162 is housed at 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 bottom of the power storage module 162 matches the position of the screw hole 442 arranged on the upper surface of the weight module 164. .

Next, in the step shown in FIG. 6, screws 682 are inserted into openings provided in each of the four protrusions 566 arranged on the power storage module 162, and the power storage module 162 and the weight module 164 are screwed together. Ru.

Through the above steps, the lithium battery pack 160 shown in FIG. 7 is assembled. In this 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 housing case 166 using screws 484. Note that, 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 removably connected using at least one of arbitrary physical means, chemical means, and magnetic means.

As described above, according to this embodiment, the power storage module 162 and the weight module 164 are configured to be detachable. More specifically, for example, each of the power storage module 162 and the weight module 164 is detachably attached to the housing case 166. Thereby, the outer shape of the weight module 164 can be freely determined regardless of the outer shape of the power storage module 162. Also, compared to the prior art, the assembly and disassembly processes of the lithium battery pack 160 may be simplified.

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

According to this embodiment, when the power storage module 162 constituting the lithium battery pack 160 is reused as part of the stationary power source 200, the power storage module 162 and the weight module 164 are separated. This allows the structure of the rack 222 to be simplified. Furthermore, power storage unit 220 can be made smaller and lighter.

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

In the present embodiment, the details of the assembly process of the lithium battery pack 160 have been explained using an example in which 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 housing 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 has a corresponding opening 462. , an opening 766 is formed. Appropriate fasteners may then be inserted into openings 462 and 766 to connect power storage module 162 and housing case 166.

In this embodiment, the power storage module 162 and the weight module 164, and the weight module 164 and the housing case 166 are connected using screws. However, the connection means is not limited to this embodiment. In other embodiments, any connection means may be utilized, such as pinning, Velcro, adhesive, magnets, etc. Further, the power storage module 162 and the weight module 164 may be directly connected, and the weight module 164 and the housing 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 the method for assembling the lithium battery pack 160 will be explained using FIG. 8. In the embodiment of FIG. 8, the power storage module 162 and the weight module 164 are not fastened with screws, the weight module 164 and the storage case 166 are not fastened with screws, and the power storage module 162 and the storage case 166 are fastened with screws. This embodiment differs from the embodiment described in connection with FIGS. 4 to 7 in that the embodiment shown in FIG. In the embodiment of FIG. 8, other configurations may have similar features to the embodiment described in connection with FIG.

In this embodiment, the weight module 164 is housed inside a housing case 166, and at least a portion of the weight module 164 is disposed between the power storage module 162 and the housing case 166. Furthermore, the power storage module 162 is detachably attached to the storage case 166 using a fastener 882. Specifically, the fastener 882 is inserted into the opening 766 arranged in each of the plurality of protrusions 566 arranged in the power storage module 162 and the opening 462 corresponding to each of the plurality of openings 766, Power storage module 162 and housing case 166 are detachably connected.

Fastener 882 may be an example of a first connection member. The storage case 166 may be an example of the first connection member.

In the present embodiment, an example of the lithium battery pack 160 has been described using a case where the power storage module 162 and the weight module 164 are not screwed together. However, the lithium battery pack 160 is not limited to this embodiment. In another embodiment, for example, a screw 682 is inserted into an 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 using the housing case 166 and the fastener 882. However, the connection means is not limited to this embodiment. In other embodiments, any connection means may be utilized, such as pinning, Velcro, adhesive, magnets, etc. Furthermore, power storage module 162 and housing case 166 may be directly connected.

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. Rack 222 may include a plurality of shelf members 922. 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, frame 924 supports shelf member 922. In this embodiment, the positioning member 926 indicates the 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 for attaching the power storage module 162. In this embodiment, the dimensions of the positioning member 926 are set to be equal to or slightly smaller than the distance between the two protrusions 564 arranged at the bottom of the power storage module 162. As a result, as shown in FIG. 10, when the power storage module 162 is placed at a predetermined position on the shelf member 922, the positioning member 926 is sandwiched between the two protrusions 564, so that the power storage module 162 Positioning becomes easier.

Openings are formed near both ends of the positioning member 926 on the upper surface of the shelf member 922 at positions corresponding to the openings provided in the protrusion 564. For example, the power storage module 162 is attached to the rack 222 by connecting an opening disposed in the protrusion 564 and an opening disposed in the shelf member 922 with an arbitrary fastener 1082.

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

In this embodiment, the protrusion 564 used to connect the power storage module 162 and the weight module 164 is used to connect the power storage module 162 and the rack 222. However, the method of connecting power storage module 162 and rack 222 is not limited to this embodiment. In other embodiments, the power storage module 162 may include a first connection part used to connect the power storage module 162 and the weight module 164, and a second connection part used to connect 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 protruding portion 566 may be an example of the other of the first connecting portion and the second connecting portion.

FIG. 11 schematically shows an example of a method for producing a lithium battery pack 160. According to this 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 into which the lead battery pack 142 is installed. Examples of the information indicating the mass of the electricity storage module 162 include information indicating the numerical value of the mass of the electricity storage module 162, information indicating the model number of the electricity storage module 162, and the like. This information is input 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. Additionally, 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, information indicating the relative position of the center of gravity of the lead battery pack 142 with respect to the reference point of the vehicle 100, etc. 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 provided. In other embodiments, the mass of weight module 164 is adjusted to a value corresponding to the difference between the mass of lead battery pack 142 and the mass of power storage module 162. Examples of methods for adjusting the mass of the weight module 164 include a method of combining a plurality of weights, a method of adjusting the amount of weight filling a cavity provided in the weight module 164, and the like.

Further, a storage case 166 is prepared. The outer dimensions of the storage case 166 may be substantially the same as the outer dimensions of the lead battery pack 142. Note that the external dimensions of the storage case 166 are not limited to these.

Next, in S1126, power storage module 162, weight module 164, and housing case 166 are assembled, for example, according to the procedure described in connection with FIGS. 4 to 7. At this time, the assembly work is carried out 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 approximately 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 implemented. As a result, a lithium battery pack 160 including a power storage module 162 is produced.

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

FIG. 12 schematically shows an example of a method for producing the stationary power supply 200. According to this 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, which were connected in the lithium battery pack 160, are separated. Next, in S1226, the stationary power supply 200 is assembled using the plurality of collected 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 illustrates an example computer 3000 in which aspects of the invention may be implemented, in whole or in part.

The program installed on the computer 3000 causes the computer 3000 to function as an operation associated with a device according to an embodiment of the present invention or as one or more “parts” of the device, or to perform the operation or the one or more “parts” of the device. and/or the computer 3000 may be caused to perform a process or a step of a process according to an embodiment of the present invention. Such programs may be executed by CPU 3012 to cause computer 3000 to perform certain operations associated with some or all of the blocks in the flowcharts and block diagrams described herein.

A computer 3000 according to this embodiment includes a CPU 3012, a RAM 3014, a graphics controller 3016, and a display device 3018, which are interconnected by a host controller 3010. The computer 3000 also includes input/output units 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 an input/output controller 3020 . The computer also includes legacy input/output units, such as ROM 3030 and keyboard 3042, which are connected to input/output controller 3020 via input/output chip 3040.

The CPU 3012 operates according to programs stored in the ROM 3030 and RAM 3014, thereby controlling each unit. Graphics controller 3016 obtains image data generated by CPU 3012, such as in a frame buffer provided in RAM 3014 or itself, and causes the image data to be displayed on display device 3018.

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

ROM 3030 stores therein programs such as a boot program executed by computer 3000 upon activation and/or programs dependent on the computer 3000 hardware. I/O chip 3040 may also connect various I/O units to I/O controller 3020 via parallel ports, serial ports, keyboard ports, mouse ports, etc.

A 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 hard disk drive 3024, RAM 3014, or ROM 3030, which are also examples of computer-readable storage medium, and executed by CPU 3012. The information processing described in these programs is read by the computer 3000 and provides coordination between the programs and the various types of hardware resources described above. An apparatus or method may be configured to implement the operation or processing of information according to the use of computer 3000.

For example, when communication is performed between the computer 3000 and an external device, the CPU 3012 executes a communication program loaded into the RAM 3014 and sends communication processing to the communication interface 3022 based on the processing written in the communication program. You can give orders. The communication interface 3022 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 under the control of the CPU 3012, and transmits the read transmission data. Data is transmitted to the network, or received data received from the network is written to a reception buffer area provided on the recording medium.

Further, the CPU 3012 causes the RAM 3014 to read all or a necessary part of the files or databases stored in external recording media such as the hard disk drive 3024, DVD-ROM drive 3026 (DVD-ROM 3001), and IC card. Various types of processing may be performed on data on RAM 3014. CPU 3012 may then write the processed data back to an external storage medium.

Various types of information, such as various types of programs, data, tables, and databases, may be stored on a recording medium and subjected to information processing. The CPU 3012 performs various types of operations, information processing, conditional determination, conditional branching, unconditional branching, and information retrieval on the data read from the RAM 3014 as described elsewhere in this disclosure and specified by the instruction sequence of the program. Various types of processing may be performed, including /substitutions, etc., and the results are written back to RAM 3014. Further, the CPU 3012 may search for information in a file in a recording medium, a database, or the like. For example, when a plurality of entries are stored in a recording medium, each having an attribute value of a first attribute associated with an attribute value of a second attribute, the CPU 3012 selects the first entry from among the plurality of entries. Search for an entry whose attribute value matches the specified condition, read the attribute value of the second attribute stored in the entry, and then set the attribute value to the first attribute that satisfies the predetermined condition. An attribute value of the associated second attribute may be obtained.

The programs or software modules described above may be stored in a computer-readable storage medium on or near computer 3000. Also, a storage medium such as a hard disk or RAM provided in a server system connected to a dedicated communication network or the Internet can be used as a computer-readable storage medium, thereby allowing the above-mentioned program to be transmitted over the network. Provided to computer 3000.

Blocks in the flowcharts and block diagrams of the present embodiments may represent stages in a process in which an operation is performed or a "part" of a device responsible for performing the operation. Certain steps and units may be provided with dedicated circuitry, programmable circuitry provided with computer readable instructions stored on a computer readable storage medium, and/or provided with computer readable instructions stored on a computer readable storage medium. May be implemented by a processor. Dedicated circuitry may include digital and/or analog hardware circuits, and may include integrated circuits (ICs) and/or discrete circuits. Programmable circuits can perform AND, OR, EXCLUSIVE OR, NAND, NOR, and other logical operations, such as field programmable gate arrays (FPGAs), programmable logic arrays (PLAs), etc. , flip-flops, registers, and memory elements.

A computer-readable storage medium may include any tangible device capable of storing instructions for execution by a suitable device such that a computer-readable storage medium with instructions stored therein may be illustrated in a flowchart or block diagram. A product will be provided that includes instructions that can be executed to create a means for performing specified operations. 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 disks, diskettes, hard disks, random access memory (RAM), read only memory (ROM), erasable programmable read only memory (EPROM or flash memory). , Electrically Erasable Programmable Read Only Memory (EEPROM), Static Random Access Memory (SRAM), Compact Disk Read Only Memory (CD-ROM), Digital Versatile Disk (DVD), Blu-ray Disc, Memory Stick , integrated circuit cards, and the like.

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

The computer-readable instructions are for producing means for a processor of a general purpose computer, special purpose computer, or other programmable data processing device, or programmable circuit to perform the operations specified in the flowchart or block diagrams. A general purpose computer, special purpose computer, or other programmable data processor, locally or over a local area network (LAN), wide area network (WAN), such as the Internet, to execute the computer readable instructions. It may be provided in a processor or programmable circuit of the device. 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 range 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 embodiments described above. Moreover, matters described with respect to a particular embodiment can be applied to other embodiments within a technically consistent range. It is clear from the claims and the like that forms with such changes or improvements may also be included within the technical scope of the present invention.

The order of execution of each process, such as the operation, procedure, step, and stage in the apparatus, system, program, and method shown in the claims, specification, and drawings, is specifically defined as "before" or "before". It should be noted that they can be implemented in any order unless the output of the previous process is used in the subsequent process. Even if the claims, specifications, and operational flows in the drawings are explained using "first," "next," etc. for convenience, this does not mean that it is essential to carry out the operations 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 accommodation case, 168 antenna, 200 stationary power supply, 220 power storage unit, 222 rack, 230 module equalization section, 240 power supply control section, 320 power storage cell group, 330 cell equalization section, 340 control section, 350 communication section, 360 housing, 362 power connector, 364 communication connector, 366 mounting section, 442 screw hole, 444 screw hole, 462 opening, 464 opening, 484 screw, 562 lid member, 564 protrusion, 566 protrusion, 682 screw, 766 opening, 864 opening, 882 fastener, 922 shelf member, 924 frame, 926 positioning member, 1082 fastener, 3000 computer, 3001 DVD-ROM, 3010 host controller, 3012 CPU, 3014 RAM, 3016 graphic controller, 3018 display device, 3020 input/output controller, 3022 communication interface, 3024 hard disk drive, 3026 DVD-ROM drive , 3030 ROM, 3040 input/output chip, 3042 keyboard

Claims (9)

A power storage system configured to be mounted on the mobile body and used in place of the first type of power storage device removed from the mobile body,
The first type of power storage device includes a first type of power storage cell,
The electricity storage system includes:
a second type of power storage device ;
a mass adjustment member for adjusting the mass of the electricity storage system;
a housing member that houses the second type of power storage device and the mass adjustment member therein;
Equipped with
The second type of power storage device is
a second type of electricity storage cell that has a smaller mass per capacity than the first type of electricity storage cell;
A casing having a first surface and a second surface on the outside thereof and accommodating the second type of electricity storage cell inside the casing;
a protruding member disposed at an end of the first surface of the housing and protruding from the first surface;
has
The protruding member extends from a position near a side of the first surface where the first surface and the second surface are in contact with each other in a direction perpendicular to a normal vector of the second surface,
A connecting portion used for detachably connecting the second type of power storage device and the mass adjustment member using a first connecting member or directly is disposed on the protruding member,
The mass adjustment member has a plate-like shape including a side surface and a first surface perpendicular to the side surface,
A power storage device connection portion used for connecting the mass adjustment member and the connection portion of the second type of power storage device is disposed on the first surface of the mass adjustment member,
A screw hole used for connecting the mass adjustment member and the housing member is arranged on the side surface of the mass adjustment member,
The accommodation member and the mass adjustment member are connected by screwing the screw hole of the mass adjustment member to an opening formed on a side surface of the accommodation member.
Electricity storage system. When the second type of power storage device constitutes a part of a second power storage system that is used without being mounted on a moving body , the connection portion connects the power storage device to the power storage device using a second connection member or directly . used for detachably connecting a second type of power storage device and another power storage device that constitutes the second power storage system;
The electricity storage system according to claim 1. The second type of power storage device further includes a power interface disposed on the first surface of the casing.
The electricity storage system according to claim 1. The mass adjustment member does not have a power storage cell that stores power,
The mass of the mass adjustment member is set so that the total mass of the electricity storage system becomes a predetermined value.
The power storage system according to any one of claims 1 to 3 . multiple energy storage cells;
a first equalization unit that equalizes the voltages of at least two of the plurality of storage cells;
further comprising,
The power storage system according to any one of claims 1 to 4. The mass adjustment member is detachably attached to the housing member,
The second type of power storage device is removably attached to the mass adjustment member using the first connection member or directly.
The power storage system according to any one of claims 1 to 5 . an information collection unit that collects information indicating at least one of an operation and a state of the power storage device ;
a communication unit that transmits and receives information to and from an external information processing device through wireless communication;
further comprising,
The power storage system according to any one of claims 1 to 6 . The casing of the second type of power storage device is
a third surface arranged parallel to the second surface;
a lid member for closing an opening formed in the third surface;
further having,
The electricity storage system according to claim 4. The casing of the second type of power storage device further includes a second protruding member disposed at an end of the first surface of the casing and protruding from the first surface,
The second protruding member extends from a position near a side of the first surface where the first surface and the third surface are in contact with each other, perpendicular to the normal vector of the first surface and parallel to the normal vector of the third surface. Stretch in parallel direction,
A second connecting portion used for detachably connecting the second type of power storage device and the housing member using a second connecting member or directly is disposed on the second protruding member. be done,
The power storage system according to claim 8.