JP7092715B2 - Secondary battery delivery method - Google Patents

Description

The present invention relates to a secondary battery delivery method.

In a device that can use a nickel-hydrogen battery and a nickel-cadmium battery, it has been proposed to provide an element that can identify the type and capacity of the battery and perform charge / discharge control suitable for the battery (see Patent Document 1). ..

In addition, the type and capacity of the battery connected to the device are detected, the discharge characteristics of a plurality of batteries of different types or capacities are stored, and the discharge characteristics corresponding to the detected battery type and capacity are selected. It has been proposed to display the remaining battery level, warn of battery consumption, and control the operation limit (see Patent Document 2).

Further, in recent years, electric vehicles, two-wheeled vehicles, electrically assisted bicycles and the like equipped with rechargeable and dischargeable secondary batteries have begun to be used. The secondary batteries mounted on such vehicles are generally replaceable and have a set warranty period.

Japanese Unexamined Patent Publication No. 6-237536 Japanese Unexamined Patent Publication No. 9-5410

Depending on the user, the secondary battery may be replaced after the warranty period. In this case, some used secondary batteries can be used even after the warranty period. Therefore, the re-operation of the recovered secondary battery is being considered. However, in the prior art, such re-operation of the secondary battery has not been considered.

The present invention has been made in consideration of such circumstances, and one of the objects of the present invention is to provide a secondary battery delivery method capable of reusing a secondary battery used in a vehicle.

The secondary battery delivery method according to the present invention adopts the following configuration.
(1): In the secondary battery delivery method according to one aspect of the present invention, the management device acquires data indicating the battery characteristics of each of the plurality of secondary batteries that have been mounted on the vehicle, and the acquired data. Based on the above-mentioned data, a combination of the secondary batteries having a total power amount equal to or higher than a predetermined power amount specified by the consumer was selected from the plurality of secondary batteries, and the moving body was selected. The secondary battery is transported to the place of the consumer, and the management device combines the plurality of secondary batteries with a combination of the secondary batteries having a predetermined range of capacity such that the total power amount is equal to or more than the predetermined power amount. It is a secondary battery delivery method that expands the predetermined range when the combination of the secondary batteries having a capacity in the predetermined range is selected and the total power amount becomes the predetermined power amount .
(2): In the secondary battery delivery method according to one aspect of the present invention, the management device acquires data indicating the battery characteristics of each of the plurality of secondary batteries that have been mounted on the vehicle, and the acquisition is described above. Based on the above-mentioned data, a combination of the secondary batteries having a total power amount equal to or higher than a predetermined power amount specified by the consumer was selected from the plurality of secondary batteries, and the moving body was selected. The secondary battery is transported to the place of the consumer, and the management device divides the plurality of secondary batteries into groups for each capacity in a predetermined range, and the total power of the group for each capacity in the predetermined range. It is a secondary battery delivery method that selects a combination of the secondary batteries from the group that can secure the number of combinations of the secondary batteries whose amount is a predetermined amount of power.

( 3 ): In the embodiment (1) or (2) above, the management device selects a combination of the secondary batteries having a predetermined range of capacities.

( 4 ): In the embodiment of ( 2 ) or ( 3 ) above, the management device is a secondary battery having a capacity in a predetermined range in which the total electric energy is equal to or more than a predetermined electric energy from the plurality of secondary batteries. When the combination is selected and the combination of the secondary batteries having the capacity in the predetermined range in which the total electric energy becomes the predetermined electric energy cannot be selected, the predetermined range is expanded.

( 5 ): In the embodiment (1) or ( 3 ), the management device divides the plurality of secondary batteries into groups for each capacity in a predetermined range, and among the groups for each capacity in the predetermined range, the said. The combination of the secondary batteries is selected from the group that can secure the number of combinations of the secondary batteries whose total electric energy becomes a predetermined electric energy.

According to (1) to ( 5 ), it is possible to provide a secondary battery suitable for the needs of the user. Further, according to (1) to ( 5 ), the recovered secondary battery can be efficiently utilized.
Further, according to (1) to (5) , since the combination of the secondary batteries having a predetermined range of capacity is selected, it is possible to simplify the control of the secondary batteries on the requested consumer side. ..

It is a figure which shows an example of the use environment of the secondary battery re-operation system which concerns on embodiment. It is a figure which shows the configuration example of the battery and the management apparatus which concerns on embodiment. It is a figure which shows the example of the information which the storage part of the management apparatus which concerns on embodiment stores. It is a sequence diagram of the procedure of the secondary battery delivery method performed by the secondary battery restart system which concerns on embodiment. It is a flowchart of the battery combination procedure which concerns on embodiment. It is a flowchart of the modification of the battery combination procedure which concerns on embodiment. It is a figure which shows the selection example of the battery which concerns on embodiment.

Hereinafter, embodiments of the secondary battery delivery method of the present invention will be described with reference to the drawings.

[usage environment]
FIG. 1 is a diagram showing an example of a usage environment of the secondary battery restart system 1 according to the present embodiment. As shown in FIG. 1, the secondary battery re-operation system 1 includes a battery 10 (10-1, 10-2, 10-3, 10-4, ...) And a management device 20. In the following description, when one of the batteries 10-1, 10-2, ... Is not specified, it is referred to as the battery 10.

The battery 10 is a secondary battery such as a lithium ion battery. The battery 10 is a battery mounted and used in each of the vehicles 30 (30-1, 30-2, ...). The battery 10 is, for example, a used battery that has been replaced at the store or returned to the store after the warranty period. The battery 10 is assigned battery identification information for identifying the battery 10.

In the following description, when one of the vehicles 30-1, 30-2, ... Is not specified, it is referred to as a vehicle 30. Further, the vehicle shall be an electric vehicle equipped with a secondary battery or an electric vehicle in which the secondary battery can be replaced. However, the vehicle is a vehicle capable of storing electric power from the outside, and may be a vehicle equipped with a secondary battery for supplying electric power for traveling, and may be a hybrid vehicle or a fuel cell vehicle. Further, the vehicle may be a four-wheeled vehicle, a three-wheeled vehicle, a saddle-riding vehicle, an electrically assisted bicycle, a tiller, a management machine, a walking assist device, a kickboard, or the like, which can be equipped with or replaced with a secondary battery.

The management device 20 measures the characteristics of the battery 10 and selects a battery 10 that can be used in combination according to the demand of the consumer 60. The number of batteries 10 to be combined is two or more. The configuration of the management device 20 will be described later.

The mobile body 50 moves to a power supply destination and supplies power by using the set of batteries 10 selected by the management device 20. The power supply destination is a consumer, for example, a condominium, an apartment house, an event venue, a leisure venue, a disaster area, or the like. The moving body 50 may carry the set of batteries 10 selected by the consumer 60.

[Configuration of battery 10 and management device 20]
Next, a configuration example of the battery 10 and the management device 20 will be described. FIG. 2 is a diagram showing a configuration example of the battery 10 and the management device 20 according to the present embodiment.

First, the battery 10 will be described. As shown in FIG. 2, the battery 10 includes a battery storage unit 101 and a battery connection unit 102.

The battery storage unit 101 stores the battery identification information. The battery storage unit 101 may store the start date and time of use, the number of charge / discharge cycles, the initial capacity, and the like.

The battery connection unit 102 is a connection unit with the management device 20.

Next, the management device 20 will be described. The management device 20 includes a connection unit 201, a measurement unit 202, a storage unit 203, an operation unit 204, a selection unit 205, an output unit 206, and an acquisition unit 207.

The connection portion 201 is a connection portion with the battery 10. When the battery 10 is connected, the connection unit 201 acquires battery identification information from the battery 10 and outputs the acquired battery identification information to the measurement unit 202. When the battery 10 stores the start date and time of use, the number of times of charge and discharge, the initial capacity, etc., the connection unit 201 also acquires such information and measures the acquired date and time of start of use, the number of times of charge and discharge, the initial capacity, and the like. Output to unit 202.

The measuring unit 202 measures the current flowing through the battery 10 and the voltage of the battery 10 when the battery 10 is connected to the connecting unit 201. Based on the measured voltage and current values of the battery 10, the measuring unit 202 is a battery such as, for example, the internal resistance of the battery 10, the capacity of the battery 10, and the SOC-OCV (State Of Charge-Open Circuit Voltage) characteristics of the battery 10. Calculate the characteristics. The measurement unit 202 associates the calculated battery characteristics with the battery identification information output by the connection unit 201 and stores it in the storage unit 203. When the connection unit 201 outputs the start date and time of use, the number of charge / discharge cycles, the initial capacity, and the like, the measurement unit 202 may also store these information in the storage unit 203 in association with the battery identification information.

The storage unit 203 stores the battery identification information in association with the battery characteristics for each battery 10. The storage unit 203 may store the battery identification information for each battery 10 in association with the start date and time of use, the number of times of charging / discharging, the initial capacity, and the like.

The operation unit 204 is, for example, a touch panel sensor. The operation unit 204 detects the operation result operated by the user and outputs the detected operation result to the selection unit 205. The operation result includes a request to be used. The scheduled usage request includes, for example, information such as the number of batteries 10, the required capacity, and the scheduled usage date and time.

The selection unit 205 acquires the usage schedule request included in the operation result output by the operation unit 204. The usage schedule request includes information indicating the amount of power to be used. The selection unit 205 may acquire the usage schedule request from the consumer 60 who requests the dispatch of the mobile body 50 via the network NW and the acquisition unit 207. The selection unit 205 selects a combination of the batteries 10 mounted on the moving body 50 (FIG. 1) based on the operation result output by the operation unit 204 and the information stored in the storage unit 203. The selection method will be described later. The selection unit 205 outputs the selected selection result to the output unit 206.

The output unit 206 is, for example, an image display device. The output unit 206 displays the selection result output by the selection unit 205. The displayed image is information that can identify the selected battery 10 (for example, the model number of the battery 10, the serial number, etc.). The output unit 206 may be a printing device.

The acquisition unit 207 acquires the usage schedule request transmitted by the consumer 60 via the network NW, and outputs the acquired usage schedule request to the selection unit 205.

The components of the management device 20 are realized by, for example, a hardware processor such as a CPU (Central Processing Unit) executing a program (software). Part or all of the management device 20 includes LSI (Large Scale Integration), ASIC (Application Specific Integrated Circuit), FPGA (Field-Programmable Gate Array), GPU (Graphic Circuit), GPU (Graphics Circuit), etc. It may be realized by (including), or it may be realized by the cooperation of software and hardware. The program may be stored in advance in a storage device (a storage device including a non-transient storage medium) such as an HDD (Hard Disk Drive) or a flash memory, or a removable storage such as a DVD or a CD-ROM. It is stored in a medium (non-transient storage medium) and may be installed by mounting the storage medium in a drive device.

[Example of information stored in the management device 20]
Next, an example of information stored by the storage unit 203 of the management device 20 will be described. FIG. 3 is a diagram showing an example of information stored in the storage unit 203 of the management device 20 according to the present embodiment. As shown in FIG. 3, the storage unit 203 stores information about the battery for each battery identification information. Information about the battery 10 includes, for example, information on SOC-OCV characteristics, internal resistance, and capacity. The storage unit 203 may further store the battery identification information in association with the start date and time of use, the number of times of charging / discharging, the initial capacity, and the like.

[Battery 10 combination procedure]
Next, an example of the secondary battery delivery method will be described. FIG. 4 is a sequence diagram of the procedure of the secondary battery delivery method performed by the secondary battery restart system 1 according to the present embodiment.

The management device 20 measures and calculates the characteristics of the battery 10 with respect to the returned or recovered battery 10, and stores the measured characteristics of the battery 10 in the storage unit 203 (step S1).

The consumer 60 transmits a usage schedule request including information indicating the planned power consumption (step S2).

The management device 20 acquires the usage schedule request transmitted by the consumer 60 (step S3). Subsequently, the management device 20 performs a selection process of the battery 10 based on the acquired usage schedule request (step S4). Subsequently, the management device 20 presents the combination of the selected batteries 10 (step S5).

The mobile body 50 mounts the combination of the presented batteries 10 (step S6). Subsequently, the moving body 50 conveys the battery 10 to the consumer 60 (step S7).

Next, an example of a method of combining the batteries 10 performed by the management device 20 will be described. FIG. 5 is a flowchart of the battery 10 combination procedure according to the present embodiment. The following processing is performed on the same type of battery 10 among the plurality of returned batteries 10.

The measuring unit 202 determines whether or not there is an unmeasured battery 10 based on, for example, the number of returned or recovered batteries 10 stored in the storage unit 203 (step S101).

When there is an unmeasured battery 10, the connection unit 201 acquires the battery identification information from the battery 10 when the battery 10 is connected. Subsequently, the measuring unit 202 measures the current flowing through the battery 10 and the voltage of the battery 10 when the battery 10 is connected to the connecting unit 201. Subsequently, the measuring unit 202 calculates battery characteristics such as the internal resistance of the battery 10, the capacity of the battery 10, and the SOC-OCV characteristics of the battery 10 based on the measured voltage value and current value (step S102).

The measurement unit 202 associates the calculated battery characteristics with the battery identification information output by the connection unit 201 and stores it in the storage unit 203 (step S103).

If there is no unmeasured battery 10, selection unit 205 acquires a scheduled use request. Subsequently, the selection unit 205 calculates the required electric energy based on the usage schedule request (step S104).

The selection unit 205 sets an initial value in a predetermined range of capacity. The initial value is stored in the storage unit 203. Subsequently, the selection unit 205 selects a predetermined number of batteries 10 having a predetermined range of capacities based on the usage schedule request (step S105).

The selection unit 205 determines whether or not a predetermined number of batteries 10 having a predetermined range of capacity can be selected (step S106).

When the selection unit 205 determines that the predetermined number of batteries 10 having a predetermined range capacity cannot be selected, the selection unit 205 expands the predetermined range and returns to the process of step S106 (step S107).

When the selection unit 205 determines that a predetermined number of batteries 10 having a predetermined range of capacity can be selected, the selection unit 205 presents information regarding the combined batteries 10 via the output unit 206 (step S108).

In step S105, the selection unit 205 may sort the information about the battery stored in the storage unit 203 in descending order of capacity, for example.

As described above, by selecting the combination of the batteries 10 having a predetermined range capacity, the control of the battery 10 by the mobile body 50 becomes easy when the mobile body 50 supplies electric power. Alternatively, by selecting a combination of batteries 10 having a predetermined range of capacities, it becomes easy for the requested consumer to control the secondary battery.

[Modification example]
Next, a modified example of the combination method example of the battery 10 will be described. FIG. 6 is a flowchart of a modified example of the battery 10 combination procedure according to the present embodiment. The following processing is performed on the same type of battery 10 among the plurality of returned batteries 10.

The management device 20 performs the same processing as in steps S101 to S104 of FIG.

The selection unit 205 regards the capacities within a predetermined range as the same capacity and divides them into groups of batteries 10 having the same capacity (step S205).

The selection unit 205 selects a group according to the required electric energy. Subsequently, the selection unit 205 selects a predetermined number of batteries 10 until the calculated electric energy is reached (step S206).

The selection unit 205 presents information about the combined battery 10 via the output unit 206 (step S207).

In step S205, the selection unit 205 may sort the information about the battery stored in the storage unit 203 in descending order of capacity, for example.

Here, an example of grouping and combining the batteries 10 will be described with reference to FIG. 7. FIG. 7 is a diagram showing a selection example of the battery 10 according to the present embodiment. In FIG. 7, reference numeral g101 represents all recovered batteries 10. Reference numeral g111 is a group having a first capacity. Reference numeral g112 is a second group of capacities. Reference numeral g113 is a third group of capacities. Further, reference numeral g121 indicates a combination of batteries 10 selected to be mounted on the moving body 50.

It is assumed that the rated capacity of the battery 10 is, for example, 9 [kWh]. It is assumed that the capacity [kWh] of the battery 10 recovered after the warranty period is, for example, 7.2, 7.0, 6.5, 6.0, .... In the example, it is assumed that the range of ± 0.2 [kWh] is the same capacity. As a result, the battery 10 has 7.2 to 6.8 [kWh] (first group), 6.79 to 6.40 [kWh] (second group), and 6.39 to 6.00, depending on the capacity. It is divided into [kWh] (first group), ... Here, it is assumed that the number of batteries 10 in the first group is 10. Further, it is assumed that the number of batteries 10 in the second group is 25. Further, it is assumed that the number of batteries 10 in the third group is 33.

Further, it is assumed that the required electric energy based on the usage schedule request is 100 [kWh]. The selection unit 205 considers that the average capacity of the first group is 7.0 [kWh], and determines that the required electric energy can be obtained with 15 units. In the case of the first group, the selection unit 205 determines that the number of electric power required is insufficient. Then, the selection unit 205 considers that the average capacity of the second group is 6.6 [kWh], and determines that the required electric energy can be obtained with 16 units. Therefore, in the case of the second group, the selection unit 205 determines that the number of units that can obtain the required electric energy can be satisfied. Then, the selection unit 205 selects 16 batteries 10 from the second group.

The capacity, range, and number of the batteries 10 described above are examples, and are not limited thereto. Further, the selection unit 205 may change the range according to the required number. For example, if the required number cannot be selected from any group, the selection unit 205 may expand the range of capacity.

As described above, in the present embodiment, among the plurality of returned batteries 10 (used batteries 10), at least two batteries 10 having a capacity within a predetermined range and a required number of batteries 10 according to the intended use are used. I tried to select the above.

Thereby, according to the present embodiment, the used battery 10 returned or collected can be efficiently and effectively utilized.

Although the embodiments for carrying out the present invention have been described above using the embodiments, the present invention is not limited to these embodiments, and various modifications and substitutions are made without departing from the gist of the present invention. Can be added.

1 ... Secondary battery restart system,
10 ... Battery,
101 ... Battery storage unit,
102 ... Battery connection,
20 ... Management device,
201 ... Connection part,
202 ... Measurement unit,
203 ... Memory unit,
204 ... Operation unit,
205 ... Selection section,
206 ... Output section,
207 ... Acquisition department,
50 ... mobile,
60 ... Consumer

Claims (5)

The management device
Obtain data showing the battery characteristics of each of multiple secondary batteries that have been installed in the vehicle,
Based on the acquired data, a combination of the secondary batteries having a total power amount equal to or higher than a predetermined power amount specified by the consumer is selected from the plurality of secondary batteries.
The moving body
The selected secondary battery is transported to the customer's location and is transported to the customer's location.
The management device
From the plurality of secondary batteries, a combination of the secondary batteries having a capacity within a predetermined range in which the total power amount is equal to or more than a predetermined power amount is selected.
If it is not possible to select a combination of the secondary batteries having a capacity within the predetermined range in which the total power amount is the predetermined power amount, the predetermined range is expanded.
Secondary battery delivery method. The management device
Obtain data showing the battery characteristics of each of multiple secondary batteries that have been installed in the vehicle,
Based on the acquired data, a combination of the secondary batteries having a total power amount equal to or higher than a predetermined power amount specified by the consumer is selected from the plurality of secondary batteries.
The moving body
The selected secondary battery is transported to the customer's location and is transported to the customer's location.
The management device
The plurality of secondary batteries can be divided into groups for each capacity in a predetermined range, and the number of combinations of the secondary batteries whose total electric energy becomes a predetermined electric energy can be secured from the groups for each capacity in the predetermined range. Select the combination of the secondary batteries from the group,
Secondary battery delivery method. The management device selects a combination of the secondary batteries having a predetermined range of capacities.
The secondary battery delivery method according to claim 1 or 2 . The management device
From the plurality of secondary batteries, a combination of the secondary batteries having a capacity within a predetermined range in which the total power amount is equal to or more than a predetermined power amount is selected.
If it is not possible to select a combination of the secondary batteries having a capacity within the predetermined range in which the total power amount is the predetermined power amount, the predetermined range is expanded.
The secondary battery delivery method according to claim 2 or 3 . The management device
The plurality of secondary batteries can be divided into groups for each capacity in a predetermined range, and the number of combinations of the secondary batteries whose total electric energy becomes a predetermined electric energy can be secured from the groups for each capacity in the predetermined range. Select the combination of the secondary batteries from the group,
The secondary battery delivery method according to claim 1 or 3 .

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