Method and system for the inspection and separation of batteries
Patent Information
- Application Number
- ES2023737489T
- Authority / Receiving Office
- ES · ES
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2022-01-10
- Filing Date
- 2023-01-10
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2043-01-10
Smart Images
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Abstract
Description
Method and system for the inspection and separation of batteries Technology sector This disclosure relates to a method and system for inspecting secondary batteries to determine whether each battery is a good battery and separating the batteries based on whether the battery is in good condition to form a group of good batteries. Background of the invention Due to problems such as environmental pollution and the depletion of oil resources, the development of energy generation based on environmentally friendly energy sources, such as solar thermal, hydroelectric, wind, ocean, and biomass energy, is underway. In particular, research is actively being conducted on rechargeable secondary batteries, and aspects such as materials, efficiency, structure, stability, and systems for these batteries are being developed. During their production, secondary batteries undergo various processes specific to their type. These processes typically include electrode formation, assembly, and forming. Additionally, secondary batteries are inspected to ensure their quality and to remove any defective batteries. According to the related technique, during the production of secondary batteries, an inspection is carried out to determine if they are in good condition, and if there is a defective battery, the good battery and the defective battery are discharged together, the defective battery is separated by an additional operation, and then the good battery is put back in. Document CN 109585949 B discloses a storage device for 18650 lithium batteries and an automatic detection and replacement method, which solves the problem that detecting and replacing damaged batteries in existing battery boxes is time-consuming, laborious, and inefficient due to an inadequate structural design. Explanation of the invention Technical problem One aspect of this disclosure provides a method and system capable of, for batteries determined to be in good condition or defective by inspection, automatically transporting and preserving defective batteries and automatically transporting and temporarily storing good batteries, as well as automatically discharging a predetermined number of good batteries for the next process when certain requirements are met. Technical solution According to one aspect of this disclosure, a method for inspecting and separating secondary batteries according to claim 1 is provided. The method for inspecting and separating a secondary battery may also include discharging all of the predetermined number of batteries when it is determined that all of the predetermined number of batteries are in good condition. Determining which of the predetermined number of batteries is a good battery may include determining which of the predetermined number of batteries is a good battery based on at least one of a voltage test, a current test, and a resistance test for the predetermined number of batteries. The method for inspecting and separating a secondary battery may also include, before determining which of the predetermined number of batteries is a good battery, the sequential receipt of battery groups, each including the predetermined number of batteries. The transfer can be performed using a suction cup. According to one aspect of this disclosure, a system for inspecting and separating secondary batteries is provided according to claim 6. The control unit can control the battery inspection unit to determine which of the predetermined number of batteries is a good battery based on at least one of a voltage test, a current test, and a resistance test for the predetermined number of batteries. The battery separation unit can transfer the battery in good condition using a suction cup. The system for inspecting and separating a secondary battery may further include a battery supply unit that sequentially supplies groups of batteries, each including the predetermined number of batteries, to the battery inspection unit. The system for inspecting and separating a secondary battery may further include a battery operating unit that performs a predetermined operation on all of the predetermined number of discharged batteries, or on the group of good batteries that have been discharged. The control unit can control the battery separation unit so that, when it is determined that all of the predetermined number of batteries are good batteries, it discharges all of the predetermined number of batteries. Advantageous effects According to a preferred embodiment of this disclosure, a process is not carried out in which a good battery and a defective battery are discharged together, the defective battery and the good battery are separated from each other, and then the good battery is replaced, so an unnecessary manual task can be omitted. According to a preferred embodiment of this disclosure, by automating the battery inspection and separation system and omitting a manually performed task, the inspection and separation process can be carried out efficiently and easily. Brief description of the drawings FIG. 1 is a diagram showing a secondary battery inspection and separation system according to an embodiment of the present disclosure; FIG.2 is a flowchart illustrating a procedure for inspecting and separating secondary batteries according to an embodiment of the present disclosure; FIG. 3 is a diagram showing the inspection and separation of secondary batteries according to a first embodiment of the present disclosure; FIG. 4 is a diagram showing the inspection and separation of secondary batteries according to a second embodiment of the present disclosure; FIG. 5 is a diagram showing the inspection and separation of secondary batteries according to a third embodiment of the present disclosure; FIG.6 is a diagram showing the inspection and separation of secondary batteries according to a fourth embodiment of the present disclosure; FIG.7 is a diagram showing the inspection and separation of secondary batteries according to a fifth embodiment of the present disclosure; FIG. 8 is a diagram showing the inspection and separation of secondary batteries according to a sixth embodiment of the present disclosure; FIG. 9 is a diagram showing the inspection and separation of secondary batteries according to a seventh embodiment of the present disclosure; FIG. 10 is a diagram showing the inspection and separation of secondary batteries according to an eighth embodiment of the present disclosure; and FIG.11 is a diagram showing a secondary battery manufacturing system that includes a secondary battery inspection and separation system according to another embodiment of the present disclosure. Preferred embodiment of the invention The preferred embodiments of this disclosure are described below with reference to the accompanying drawings, so that those skilled in the art may readily implement this disclosure. However, this disclosure can be implemented in a variety of ways and is not limited or restricted by the following embodiments. In order to clearly illustrate the present disclosure, detailed descriptions of parts unrelated to the description or techniques known in the art that might unnecessarily obscure the subject of the present disclosure are omitted, and in the descriptive memorandum, when reference numbers are assigned to components in each of the drawings, identical or similar components will be designated with identical or similar reference numbers throughout the descriptive memorandum. Furthermore, the terms or words used in this specification and in the claims should not be interpreted restrictively as ordinary meanings or dictionary-based meanings, but should be interpreted as meanings and concepts within the scope of this disclosure, based on the principle that an inventor can adequately define the concept of a term to best describe and explain his invention. FIG. 1 illustrates a secondary battery inspection and separation system 1 according to an embodiment of the present disclosure (hereinafter referred to as "inspection and separation system 1"). System 1 for inspection and separation includes a battery inspection unit 110. The battery inspection unit 110 performs an inspection to determine which of the batteries supplied to System 1 for inspection and separation are good batteries. For example, the battery inspection unit 110 can determine which of the batteries supplied sequentially is good based on at least one of a voltage test, one current test, and one battery resistance test. The 110 battery inspection unit can sequentially receive battery groups, each containing a predetermined number of batteries for inspection. For example, battery groups containing a predetermined number of batteries can be sequentially supplied to the 110 battery inspection unit, and the unit determines which of the predetermined number of batteries in each sequentially supplied group is a good battery. System 1 for inspection and separation includes a battery separation unit 120. The battery separation unit 120 separates batteries that have been determined to be either good or defective. For example, the battery separation unit 120 can transfer batteries determined to be good to a good battery storage unit 130 and batteries that have not been determined to be good to a defective battery storage unit 140. The battery separation unit 120 can also use a suction cup to collect batteries and transfer them to either the good battery storage unit 130 or the defective battery storage unit 140. Inspection and Separation System 1 includes the Good Battery Storage Unit 130. Good Battery Storage Unit 130 can store batteries that are determined to be good (or in good condition). For example, good batteries can be temporarily stored in Good Battery Storage Unit 130 before being discharged from Inspection and Separation System 1. Inspection and Separation System 1 includes defective battery storage unit 140. Defective battery storage unit 140 can store batteries that have not been determined to be good (or defective). For example, defective batteries that will not be discharged as good batteries from Inspection and Separation System 1 can be stored in defective battery storage unit 140. The inspection and separation system 1 also includes a control unit 100. The control unit 100 is electrically connected to at least one of the battery inspection unit 110 and the battery separation unit 120, and controls the operations performed by at least one of the battery inspection unit 110 and the battery separation unit 120. The inspection and separation system 1 can discharge a group 10 of good batteries. For example, the group 10 of good batteries can be a battery group that includes only good batteries. When discharging good batteries, the inspection and separation system 1 can discharge good batteries after forming the group 10 of good batteries, which includes only a predetermined number of good batteries for process efficiency. The predetermined number of good batteries included in the group 10 of good batteries can be the same as the predetermined number of batteries included in each of the battery groups supplied sequentially to the battery inspection unit 110. Figure 2 is a flowchart illustrating a procedure for inspecting and separating secondary batteries according to one embodiment of this disclosure. According to step 210, it is possible to determine which of a predetermined number of batteries is a good battery. For example, the battery inspection unit 110 can determine which of a predetermined number of batteries is a good battery. The battery inspection unit 110 can determine which of the batteries is a good battery based on at least one of a voltage test, one current test, and one resistance test. As a concrete example, when the number of batteries included in each of the battery groups supplied sequentially to the battery inspection unit 110 is four, the battery inspection unit 110 can determine which of the four batteries is a good battery. According to step 220, it is possible to identify if all of the predetermined number of batteries are determined to be good batteries.For example, the battery separation unit 120 can identify if all of the predetermined number of batteries are found to be in good condition. The battery separation unit 120 can then perform step 230 once it has been determined that all of the predetermined number of batteries are in good condition. According to step 230, it is possible to discharge all of the predetermined number of batteries. For example, when all of the predetermined number of batteries are identified as good, the battery separation unit 120 can discharge all of the predetermined number of batteries as group 10 of good batteries. As a specific example, when four batteries have been inspected to determine which ones are good and all four are found to be good, the battery separation unit 120 can discharge all four batteries as group 10 of good batteries. The battery separation unit 120 can perform stage 240 when it is not identified that all of the predetermined number of batteries are determined to be good batteries. According to step 240, it is possible to determine whether group 10 of good batteries can be formed by receiving good batteries via transfer. For example, battery separation unit 120 can determine whether group 10 of good batteries can be formed by transferring defective batteries from a predetermined number to defective battery storage unit 140 and receiving good batteries from good battery storage unit 130 via transfer. As a specific example, when the number of good batteries stored in good battery storage unit 130 is insufficient to form group 10 of good batteries, battery separation unit 120 can determine that forming group 10 of good batteries is not possible.As another example, when the number of good batteries stored in good battery storage unit 130 is less than the number of defective batteries transferred to defective battery storage unit 140, battery separation unit 120 may determine that it is not possible to form group 10 of good batteries. When the number of good batteries stored in unit 130 (good battery storage unit) is sufficient to form group 10 of good batteries, unit 120 (battery separation unit) can determine that forming group 10 of good batteries is possible. Furthermore, when the number of good batteries stored in unit 130 (good battery storage unit) is equal to or greater than the number of defective batteries transferred to unit 140 (defective battery storage unit), unit 120 (battery separation unit) can determine that forming group 10 of good batteries is possible. When it is identified that the formation of group 10 of batteries in good condition is possible, the battery separation unit 120 can perform stage 250. According to step 250, it is possible to form group 10 of good batteries by receiving good batteries via transfer. For example, battery separation unit 120 can receive good batteries stored in good battery storage unit 130 via transfer, and can form group 10 of good batteries, which includes a predetermined number of good batteries, upon receiving the good batteries via transfer. According to step 260, it is possible to discharge group 10 of good batteries. For example, when group 10 of good batteries is formed, the battery separation unit 120 can discharge group 10 of good batteries from inspection and separation system 1 for another process. When it is identified that it is not possible to form group 10 of batteries in good condition, the battery separation unit 120 can perform stage 270. According to step 270, defective batteries within the predetermined number of batteries can be transferred to defective battery storage unit 140. For example, when the number of good batteries stored in good battery storage unit 130 is insufficient to form group 10 of good batteries, battery separation unit 120 can identify that forming group 10 of good batteries is not possible. When it is identified that forming group 10 of good batteries is not possible, battery separation unit 120 can transfer the defective batteries from the predetermined number of batteries supplied to defective battery storage unit 140. According to step 280, it is possible to temporarily store good batteries among a predetermined number of batteries in the good battery storage unit 130. For example, when it is determined that it is not possible to form group 10 of good batteries, the battery separation unit 120 can temporarily store the good batteries among a predetermined number of batteries supplied in the good battery storage unit 130. The inspection and separation system control unit 100 can perform the operations of steps 210 to 280 described above by controlling at least one of the battery inspection unit 110 and the battery separation unit 120. The following section, with reference to the embodiments in Figures 3 to 10, describes in detail a procedure for inspecting and separating the secondary batteries using inspection and separation system 1. Furthermore, the embodiments in Figures 3 to 10 are described assuming a default number of batteries is four, but this is merely an example for ease of description and is not strictly limited to this. Since the battery groups are supplied sequentially, each embodiment can be described based on the preceding one. For example, after the nth embodiment, the nth+1st embodiment can be carried out based on the nth embodiment. FIG.3 shows the inspection and separation of secondary batteries according to a first embodiment of the present disclosure. The Battery Inspection Unit 110 can receive a battery pack containing four batteries. The Battery Inspection Unit 110 can perform an inspection to determine which batteries in the supplied battery pack are in good condition. The Battery Inspection Unit 110 can determine which batteries in the supplied battery pack are in good condition based on at least one voltage test, one current test, and one resistance test for each battery in the battery pack. When all four batteries in the supplied battery pack are in good condition, the Battery Inspection Unit 110 can determine that all batteries in the supplied battery pack are in good condition.For example, when all the batteries included in the supplied battery group are identified as good condition batteries 2, the battery separation unit 120 can discharge all four batteries as good condition battery group 10. In this case, there may not be any batteries in either the good battery storage unit 130 or the defective battery storage unit 140. FIG.4 shows the inspection and separation of secondary batteries according to a second embodiment of the present disclosure. When there are three good batteries 2 and one defective battery 3 among the four batteries included in the supplied battery group, the battery inspection unit 110 can determine that, among the four batteries, there are three good batteries 2 and one defective battery 3. Upon identifying the decision made, battery separation unit 120 can determine whether it is possible to form group 10 of good batteries by receiving one good battery 2 from good battery storage unit 130 via transfer. In this case, since, according to the first embodiment, there are no good batteries 2 in good battery storage unit 130, it may not be possible to form group 10 of good batteries, which includes four good batteries. Battery separation unit 120 can determine that it is not possible to form group 10 of good batteries, transfer the single defective battery 3 to defective battery storage unit 140, and transfer the three good batteries 2 to good battery storage unit 130. In this case, there may be three good batteries 2 in good battery storage unit 130 and one defective battery 3 in defective battery storage unit 140. FIG. 5 shows the inspection and separation of secondary batteries according to a third embodiment of this disclosure. When there are three good batteries 2 and one defective battery 3 among the four batteries included in the supplied battery group, the battery inspection unit 110 can determine that, among the four batteries, there are three good batteries 2 and one defective battery 3. By identifying the determination made, battery separation unit 120 can determine whether it is possible to form group 10 of good batteries by receiving one good battery 2 from good battery storage unit 130 via transfer. In this case, since there are three good batteries 2 in good battery storage unit 130 according to the second embodiment, it may be possible to form group 10 of good batteries, which includes four good batteries, by receiving one good battery 2 via transfer. Battery separation unit 120 can determine that it is possible to form group 10 of good batteries, transfer the single defective battery 3 to defective battery storage unit 140, and form group 10 of good batteries by receiving the single good battery 2 from good battery storage unit 130 via transfer. Battery separation unit 120 can then discharge group 10 of good batteries, which includes four good batteries. In this case, there may be two good batteries 2 in good battery storage unit 130 and two defective batteries 3 in defective battery storage unit 140. FIG. 6 shows the inspection and separation of secondary batteries according to a fourth embodiment of this disclosure. When there are two good batteries 2 and two defective batteries 3 among the four batteries included in the supplied battery group, the battery inspection unit 110 can determine that, among the four batteries, there are two good batteries 2 and two defective batteries 3. By identifying the determination made, battery separation unit 120 can determine whether it is possible to form group 10 of good batteries by receiving one good battery 2 from good battery storage unit 130 via transfer. In this case, since there are two good batteries 2 in good battery storage unit 130 according to the third embodiment, it may be possible to form group 10 of good batteries, which includes four good batteries, by receiving two good batteries 2 via transfer. Battery separation unit 120 can determine that it is possible to form group 10 of good batteries, transfer the two defective batteries 3 to defective battery storage unit 140, and form group 10 of good batteries by receiving the two good batteries 2 from good battery storage unit 130 via transfer. Battery separation unit 120 can then discharge the group 10 of good batteries, which includes four good batteries. In this case, there may not be any good battery 2 in good battery storage unit 130 and there may be four defective battery 3 in defective battery storage unit 140. FIG. 7 shows the inspection and separation of secondary batteries according to a fifth embodiment of the present disclosure. When there are no good battery 2s and four defective battery 3s among the four batteries included in the supplied battery group, the battery inspection unit 110 can determine that, among the four batteries, there are no good battery 2s and four defective battery 3s. Upon identifying the determination made, battery separation unit 120 can determine whether it is possible to form group 10 of good batteries by receiving one good battery 2 from good battery storage unit 130 via transfer. In this case, since there are no good batteries 2 in good battery storage unit 130 according to the fourth embodiment, it may not be possible to form group 10 of good batteries comprising four good batteries by receiving zero good batteries 2 via transfer. The battery separation unit 120 may determine that forming group 10 of good batteries is not possible and may transfer the four defective batteries 3 to the defective battery storage unit 140. The battery separation unit 120 may not discharge the group 10 of good batteries. In this case, there may be no good batteries 2 in the good battery storage unit 130, and there may be eight defective batteries 3 in the defective battery storage unit 140. FIG. 8 shows the inspection and separation of secondary batteries according to a sixth embodiment of the present disclosure. When there is one good battery 2 and three defective batteries 3 among the four batteries included in the supplied battery group, the battery inspection unit 110 can determine that, among the four batteries, there is one good battery and three defective batteries 3. Upon identifying the determination made, battery separation unit 120 can determine whether it is possible to form group 10 of good batteries by receiving a good battery 2 from good battery storage unit 130 via transfer. In this case, since there is no good battery 2 in good battery storage unit 130 according to the fifth embodiment, it may not be possible to form group 10 of good batteries, which includes four good batteries, by receiving a good battery 2 via transfer. Battery separation unit 120 may determine that it is not possible to form group 10 of good batteries, transfer the three defective batteries 3 to defective battery storage unit 140, and transfer the single good battery 2 to good battery storage unit 130. Battery separation unit 120 may not discharge group 10 of good batteries. In this case, there may be one good battery 2 in good battery storage unit 130 and eleven defective batteries 3 in defective battery storage unit 140. FIG. 9 shows the inspection and separation of secondary batteries according to a seventh embodiment of this disclosure. When there are four good batteries 2 and no defective batteries 3 among the four batteries included in the supplied battery group, the battery inspection unit 110 can determine that, among the four batteries, there are four good batteries and no defective batteries 3. When it is determined that the four batteries included in the supplied battery group are all good condition batteries, the battery separation unit 120 can discharge all four batteries as good condition battery group 10. In this case, there may be one good battery 2 in good battery storage unit 130 and eleven defective batteries 3 in defective battery storage unit 140. FIG. 10 shows the inspection and separation of secondary batteries according to an eighth embodiment of this disclosure. When there are three good batteries 2 and one defective battery 3 among the four batteries included in the supplied battery group, the battery inspection unit 110 can determine that, among the four batteries, there are three good batteries and one defective battery 3. Upon identifying the determination made, battery separation unit 120 can determine whether it is possible to form group 10 of good batteries by receiving a good battery 2 from good battery storage unit 130 via transfer. In this case, since there is a good battery 2 in good battery storage unit 130 according to the seventh embodiment, it may be possible to form group 10 of good batteries, which includes four good batteries, by receiving the good battery 2 via transfer. Battery separation unit 120 can identify that it is possible to form group 10 of good batteries, transfer the defective battery 3 to defective battery storage unit 140, and receive the single good battery 2 from good battery storage unit 130 via transfer. When battery separation unit 120 receives a single good battery 2 via transfer, group 10 of good batteries can be formed. Battery separation unit 120 can then discharge group 10 of good batteries, which includes four good batteries. In this case, there may not be any good battery 2s in good battery storage unit 130 and there may be twelve defective batteries 3s in defective battery storage unit 140. FIG.11 shows a 1-1 secondary battery manufacturing system including a 1 secondary battery inspection and separation system according to another embodiment of the present disclosure for illustrative purposes. The secondary battery manufacturing system 1-1 (hereinafter referred to as "manufacturing system 1-1") may include the secondary battery inspection and separation system 1 described above. The 1-1 manufacturing system may include a battery operating unit 150. The battery operating unit 150 can perform a predetermined operation on the good batteries included in group 10 of discharged good batteries. For example, the battery operating unit 150 can perform cable cutting on the good batteries included in group 10 of good batteries. As a concrete example, the battery operating unit 150 can identify the alignment status of the good batteries and a cable position based on the alignment status through a user interface (e.g., cut view), and can perform a predetermined cutting operation based on the identified alignment status and cable position. The 1-1 manufacturing system may include a battery supply unit 160. The battery supply unit 160 may sequentially supply battery groups to the battery inspection unit 110, each group containing a predetermined number of batteries. The 1-1 manufacturing system may include a 170 battery information checker unit. The 170 battery information checker unit can verify the battery information of each of a predetermined number of batteries within battery groups. For example, when each of a predetermined number of batteries has a barcode containing battery information, the 170 battery information checker unit can retrieve the battery information by reading the barcode. The battery information may include position information, identification information, and information on whether the battery is in good condition.Upon receiving battery information from the battery verification unit 170, the battery separation unit 120 can use a suction cup to pick up a predetermined number of batteries identified as either good or defective, based on their positional information. The identified batteries are then transferred to either the good battery storage unit 130 or the defective battery storage unit 140. The manufacturing system 1-1 may include a battery alignment unit 180. This unit can perform mechanical alignment of each battery within the supplied battery group. For example, before the battery inspection unit 110 performs its inspection, each battery in the group can be aligned to ensure a smooth inspection. The control unit 100 can be electrically connected to at least one of the battery operating unit 150, the battery supply unit 160, the battery information checking unit 170, and the battery alignment unit 180, and can control the operation of at least one of the battery operating unit 150, the battery supply unit 160, the battery information checking unit 170, and the battery alignment unit 180. Although the present disclosure has been described above with respect to a limited number of embodiments and drawings, it is not limited to them, and it is obvious to those skilled in the art that various modifications and changes may be made to it within the scope of the appended claims. Description of symbols 1: Inspection and separation system 1-1: secondary battery manufacturing system 2: Battery in good condition 3: defective battery 10: Battery pack in good condition 100: control unit 110: Battery inspection unit 120: battery separation unit 130: Battery storage unit in good condition 140: defective battery storage unit 150: battery operating unit 160: battery supply unit 170: Battery information verification unit 180: Battery alignment unit
Claims
1. A method for inspecting and separating secondary batteries to form a pool (10) of good batteries with a predetermined number of good batteries (2) in an inspection and separation system (1) comprising a good battery storage unit (130), the method comprising: determining which battery in a pool with the predetermined number of batteries is a good battery (2) or a defective battery (3); when it is not determined that all of the predetermined number of batteries in the pool are good batteries: transferring a number of defective battery(ies) from the predetermined number of batteries to a defective battery storage unit (140) and receiving a number of good batteries (2) temporarily stored in the good battery storage unit (130) by transfer,wherein the number of good battery(ies) received corresponds to the number of defective battery(ies) transferred, where it is possible to form a group (10) of good batteries that includes only good batteries (2) by receiving good battery(ies) (2) temporarily stored in the good battery storage unit (130) by transfer; and temporarily store each good battery (2) from among the predetermined number of batteries by transferring good battery(ies) (2) from the group to the good battery storage unit (130),when it is not possible to form a group (10) of good batteries comprising only good batteries by receiving good battery(s) (2) temporarily stored in the good battery storage unit (130) by transfer; and discharging the group (10) of good batteries from the inspection and separation system (1) when the group (10) of good batteries is formed.
2. The method of claim 1, further comprising discharging all of the predetermined number of batteries when it is determined that all of the predetermined number of batteries are good batteries.
3. The method of claim 1, wherein determining which of the predetermined number of batteries is a good battery (2) includes determining which of the predetermined number of batteries is a good battery based on at least one of a voltage test,4. The method of claim 1, further comprising, before determining which of the predetermined number of batteries is a good battery (2), sequentially receiving battery groups, each comprising the predetermined number of batteries.
5. The method of claim 1, wherein the transfer is performed using a suction cup.
6. A system for inspecting and separating secondary batteries to form a group (10) of good batteries with a predetermined number of good batteries (2) in an inspection and separation system (1) comprising a good battery storage unit (130).comprising the system: a battery inspection unit (110) that determines which of a predetermined number of batteries is a good battery (2); a battery separation unit (120) that separates and discharges the predetermined number of batteries; a good battery storage unit (130) in which the good batteries (2) are temporarily stored; a defective battery storage unit (140) that stores a defective battery (3); and a control unit (100) electrically connected to the battery inspection unit (110) and the battery separation unit (120),wherein the control unit (100): controls the battery inspection unit (110) to determine which of a group with the predetermined number of batteries is a good battery (2); and controls the battery separation unit (120) to: when it is not determined that all of the predetermined number of batteries in the group are good batteries, transfer a number of defective battery(s) from the predetermined number of batteries to the defective battery storage unit (140) and receive a number of good battery(s) (2) temporarily stored in the good battery storage unit (130) by transfer, wherein the number of good battery(s) received corresponds to the number of defective battery(s) transferred,where it is possible to form a group (10) of good batteries by receiving the good battery (2) temporarily stored in the good battery storage unit (130) by transferring it to form a group (10) of good batteries with a predetermined number of good batteries (2) in an inspection and separation system (1) comprising a good battery storage unit (130); and temporarily storing each good battery (2) among the predetermined number of batteries by transferring the good battery (2) from the group to the good battery storage unit (130),when it is not possible to form a pool of good batteries comprising only good battery(s) (2) by receiving good battery(s) (2) temporarily stored in the good battery storage unit (130) by transfer; and to discharge the pool (10) of good batteries from the inspection and separation system (1) when the pool (10) of good batteries has been formed.
7. The system according to claim 6, wherein the control unit (100) controls the battery inspection unit (110) to determine which of the predetermined number of batteries is a good battery (2) based on at least one of a voltage test, a current test, and a resistance test for the predetermined number of batteries.
8. The system according to claim 6,wherein the battery separation unit (120) transfers the good battery using a suction cup.
9. The system according to claim 6, further comprising a battery supply unit (160) that sequentially supplies battery groups, each including a predetermined number of batteries, to the battery inspection unit (110).
10. The system according to claim 6, further comprising a battery operating unit (150) that performs a predetermined operation on all discharged batteries from the predetermined number of batteries, or on the group of discharged good batteries.
11. The system according to claim 6, wherein the control unit (100) controls the battery separation unit (120) so that, when it is determined that all of the predetermined number of batteries are good batteries, it discharges all of the predetermined number of batteries.