Method and system for inspecting and isolating batteries

Abstract

A method for inspecting and separating a secondary battery according to an embodiment of the present invention may include a step of determining whether a predetermined number of batteries are good batteries; if it is possible to form a good battery group consisting only of good batteries by transferring the good batteries temporarily stored in a good battery storage unit, transferring the good batteries temporarily stored in the good battery storage unit to a good battery storage unit if it is not possible to form the good battery group by transferring the good batteries temporarily stored in the good battery storage unit; transferring good batteries of the predetermined number of batteries to a good battery storage unit and temporarily storing them; and if the good battery group is formed, discharging the good battery group.

Description

Technical Field

[0006] ,

[0001] [Cross - reference to Related Applications] This application claims the benefit of priority based on Korean Patent Application No. 10 - 2022 - 0003646, filed on January 10, 2022, and all the contents disclosed in the literature of the Korean patent application are included as part of this specification.

[0002] The present invention relates to a method and a system for inspecting whether a battery is good and separating the battery according to whether it is good.

Background Art

[0003] Due to reasons such as environmental pollution and oil depletion, the development of power production based on eco - friendly energy sources such as solar heat, hydropower, wind power, ocean energy, and biomass energy is in progress. In particular, research on rechargeable secondary batteries is actively carried out, and development is being made on aspects such as the materials, efficiency, structure, stability, and systems of secondary batteries.

[0004] Secondary batteries have come to go through processes in the production process, and various processes corresponding to the form of secondary batteries are applied. Usually, secondary batteries are produced through processes such as an electrode process, an assembly process, and a formation process, and there is also a process of inspecting whether a secondary battery is good in the production process of secondary batteries and separating defective batteries.

[0005] According to the conventional technology, in the production process of secondary batteries, when inspecting whether a secondary battery is good and there are defective batteries, both good batteries and defective batteries are discharged, and after separately performing the operation of separating defective batteries, the good batteries are re - introduced.

Summary of the Invention

Problems to be Solved by the Invention

[0006] The problem that this invention aims to solve is to provide a method and system that, when batteries are determined to be good or bad through inspection, automatically transfers and stores defective batteries, automatically transfers and temporarily stores good batteries, and automatically discharges a predetermined number of good batteries for the next process when certain requirements are met. [Means for solving the problem]

[0007] The secondary battery inspection and separation method according to an embodiment of the present invention may include the steps of: determining whether a predetermined number of batteries are good batteries or not; if the predetermined number of batteries are not determined to be good batteries, transferring the good batteries temporarily stored in the good battery storage unit to form a good battery group consisting only of good batteries; transferring the good batteries temporarily stored in the good battery storage unit to form a good battery group if it is not possible to form the good battery group by transferring the good batteries temporarily stored in the good battery storage unit to form a good battery group; and, if the good battery group has been formed, discharging the good battery group.

[0008] The aforementioned secondary battery inspection and separation method may include a step of discharging the predetermined number of batteries if it is determined that all of the predetermined number of batteries are in good condition.

[0009] The method for inspecting and separating secondary batteries may include the step of transferring and storing defective batteries, which are determined to be not good batteries from a predetermined number of batteries, in a defective battery storage section.

[0010] In the step of determining whether or not a battery is in good condition, it is possible to determine whether or not a battery is in good condition based on at least one of the following tests performed on a predetermined number of batteries: voltage test, current test, and resistance test.

[0011] The group of good batteries may consist of the same number of good batteries as the predetermined number.

[0012] The secondary battery inspection and separation method may include a step of sequentially supplying battery groups, each containing a predetermined number of batteries, before the step of determining whether or not the batteries are in good condition.

[0013] The aforementioned transfer may be performed using a suction pad.

[0014] The inspection and separation method for the secondary battery may include a step in which a predetermined number of batteries or a group of good batteries are discharged into the battery work section and a predetermined operation is performed.

[0015] An embodiment of the present invention provides a secondary battery inspection-separation system that includes a battery inspection unit that determines whether a predetermined number of batteries are good batteries or not, a battery separation unit that separates and discharges the predetermined number of batteries, a good battery storage unit where good batteries are temporarily stored, and a control unit electrically connected to the battery inspection unit and the battery separation unit. The control unit controls the battery inspection unit to determine whether a predetermined number of batteries are good batteries or not, and if it is possible to form a good battery group by transferring the good batteries temporarily stored in the good battery storage unit if the predetermined number of batteries are not determined to be good batteries, the good batteries temporarily stored in the good battery storage unit are transferred, and if it is not possible to form a good battery group by transferring the good batteries temporarily stored in the good battery storage unit, the good batteries from the predetermined number of batteries are transferred to the good battery storage unit for temporary storage, and if a good battery group is formed, the control unit controls the battery separation unit to discharge the good battery group.

[0016] The secondary battery inspection-separation system further includes a defective battery storage unit for storing defective batteries, and the control unit can control the battery separation unit to transfer defective batteries, which it has determined to be not good batteries from a predetermined number of batteries, to the defective battery storage unit.

[0017] The control unit can control the battery inspection unit to determine whether it is a good battery based on at least one of voltage inspection, current inspection, and resistance inspection for the predetermined number of batteries.

[0018] The good battery group may be composed of the same number of good batteries as the predetermined number.

[0019] The battery separation unit can transfer the good batteries using an adsorption pad.

[0020] The inspection-separation system for the secondary battery may include a battery supply unit that sequentially supplies battery groups each including the predetermined number of batteries to the battery inspection unit.

[0021] The inspection-separation system for the secondary battery may include a battery working unit for performing a predetermined operation on the entire discharged predetermined number of batteries or the good battery group.

[0022] When it is determined that all of the predetermined number of batteries are good batteries, the control unit can control the battery separation unit to discharge all of the predetermined number of batteries.

Advantages of the Invention

[0023] According to a preferred embodiment of the present invention, since the process of discharging both good batteries and defective batteries, manually separating the good batteries and defective batteries, and then reinserting the good batteries is not performed, unnecessary manual work can be omitted.

[0024] According to a preferred embodiment of the present invention, the inspection and separation system of the battery is automated, and the operations performed manually are omitted, so that the inspection and separation processes can be performed efficiently and simply.

Brief Description of the Drawings

[0025] [Figure 1] It is a diagram showing an inspection-separation system for a secondary battery according to an embodiment of the present invention. [Figure 2] It is a flowchart showing the process of inspecting and separating a secondary battery according to an embodiment of the present invention. [Figure 3] It is a diagram showing the inspection and separation of a secondary battery according to the first embodiment of the present invention. [Figure 4] It is a diagram showing the inspection and separation of a secondary battery according to the second embodiment of the present invention. [Figure 5] It is a diagram showing the inspection and separation of a secondary battery according to the third embodiment of the present invention. [Figure 6] It is a diagram showing the inspection and separation of a secondary battery according to the fourth embodiment of the present invention. [Figure 7] It is a diagram showing the inspection and separation of a secondary battery according to the fifth embodiment of the present invention. [Figure 8] It is a diagram showing the inspection and separation of a secondary battery according to the sixth embodiment of the present invention. [Figure 9] It is a diagram showing the inspection and separation of a secondary battery according to the seventh embodiment of the present invention. [Figure 10] It is a diagram showing the inspection and separation of a secondary battery according to the eighth embodiment of the present invention. [Figure 11] It is a diagram showing a secondary battery manufacturing system including a secondary battery inspection-separation system according to another embodiment of the present invention.

Embodiments for Carrying Out the Invention

[0026] Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail so that those having ordinary knowledge in the technical field to which the present invention pertains can easily implement it. However, the present invention may be embodied in various different forms and is not limited or restricted by the following embodiments.

[0027] To clearly explain the present invention, detailed descriptions of parts not related to the explanation or known technologies that may obscure the gist of the present invention are omitted. In this specification, when adding reference numerals to the components of each drawing, the same reference numerals are given to the same or similar components throughout the specification.

[0028] Furthermore, the terms and words used in this specification and the claims shall not be interpreted in a manner limited to their ordinary and lexicographical meanings, but rather in a manner consistent with the technical idea of ​​the present invention, in accordance with the principle that inventors themselves may define the concepts of terms as appropriate in order to best describe their invention.

[0029] Figure 1 shows a secondary battery inspection-separation system 1 (hereinafter referred to as "inspection-separation system 1") according to one embodiment of the present invention.

[0030] The inspection-separation system 1 may include a battery inspection unit 110. The battery inspection unit 110 may perform inspections on batteries supplied to the inspection-separation system 1 to determine whether they are good batteries or not. For example, the battery inspection unit 110 can determine whether a battery is good based on at least one of a voltage test, a current test, and a resistance test on batteries supplied sequentially.

[0031] The battery inspection unit 110 may be supplied with battery groups consisting of a predetermined number of batteries, one after the other, for inspection. For example, battery groups containing a predetermined number of batteries may be supplied to the battery inspection unit 110 in sequence, and the battery inspection unit 110 can determine whether or not the predetermined number of batteries included in each sequentially supplied battery group are good batteries.

[0032] The inspection-separation system 1 may include a battery separation unit 120. The battery separation unit 120 can perform separation operations on batteries that have been determined to be in good condition or not. For example, the battery separation unit 120 can transfer batteries determined to be in good condition to a good battery storage unit 130, and batteries that have not been determined to be in good condition to a defective battery storage unit 140. The battery separation unit 120 can use a suction pad to pick up batteries and transfer the picked-up batteries to either the good battery storage unit 130 or the defective battery storage unit 140.

[0033] The inspection-separation system 1 may include a good battery storage unit 130. The good battery storage unit 130 can store batteries that have been determined to be good batteries (or good batteries). For example, good batteries may be temporarily stored in the good battery storage unit 130 before they are discharged by the inspection-separation system 1.

[0034] The inspection-separation system 1 may include a defective battery storage unit 140. The defective battery storage unit 140 may store batteries that have not been determined to be good batteries (or defective batteries). For example, the defective battery storage unit 140 may store defective batteries that cannot be discharged as good batteries by the inspection-separation system 1.

[0035] The inspection-separation system 1 may further include a control unit 100. The control unit 100 may be electrically connected to at least one of the battery inspection unit 110 and the battery separation unit 120, and can control the operations performed by at least one of the battery inspection unit 110 and the battery separation unit 120.

[0036] The inspection-separation system 1 can discharge good battery groups 10. For example, good battery group 10 may be a battery group consisting only of good batteries. When discharging good batteries, the inspection-separation system 1 may, for the sake of process efficiency, discharge good battery groups 10 consisting only of a predetermined number of good batteries after they have been formed. The predetermined number of good batteries included in good battery group 10 may be the same as the predetermined number of batteries included in each battery group sequentially supplied to the battery inspection unit 110. However, it is not limited to this.

[0037] Figure 2 shows the flow of inspection and separation of a secondary battery according to one embodiment of the present invention.

[0038] According to step 210, it is possible to determine whether a predetermined number of batteries are good batteries or not. For example, the battery inspection unit 110 can determine whether a predetermined number of batteries are good batteries or not. The battery inspection unit 110 can determine whether a battery is good batteries or not based on at least one of voltage testing, current testing, and resistance testing. As a specific example, if each battery group supplied sequentially to the battery inspection unit 110 contains 4 batteries, the battery inspection unit 110 can determine whether 4 batteries are good batteries or not.

[0039] According to step 220, it is possible to determine whether a predetermined number of batteries as a whole have been determined to be good batteries. For example, the battery separation unit 120 can determine whether a predetermined number of batteries as a whole have been determined to be good batteries. If the battery separation unit 120 determines that a predetermined number of batteries as a whole have been determined to be good batteries, it can perform step 230.

[0040] According to step 230, a predetermined number of batteries can be discharged as a whole. For example, if the battery separation unit 120 determines that a predetermined number of batteries are all good batteries, it can discharge the entire predetermined number of batteries as a good battery group 10. As a specific example, if four batteries are inspected to determine whether they are good batteries and it is determined that all four are good batteries, the battery separation unit 120 can discharge the four batteries as a good battery group 10.

[0041] If the battery separation unit 120 is unable to determine that a predetermined number of batteries are all good batteries, it can perform step 240.

[0042] According to step 240, it is possible to determine whether or not good batteries can be transferred to form a good battery group 10. For example, the battery separation unit 120 can determine whether or not it is possible to form a good battery group 10 by transferring defective batteries from a predetermined number of batteries to the defective battery storage unit 140 and good batteries to the good battery storage unit 130. Specifically, if the number of good batteries stored in the good battery storage unit 130 is insufficient to form a good battery group 10, the battery separation unit 120 can determine that it is not possible to form a good battery group 10. Alternatively, if the number of good batteries stored in the good battery storage unit 130 is less than the number of defective batteries to be transferred to the defective battery storage unit 140, the battery separation unit 120 can determine that it is not possible to form a good battery group 10.

[0043] The battery separation unit 120 can identify that it is possible to form a good battery group 10 if the number of good batteries stored in the good battery storage unit 130 is sufficient to form a good battery group 10. Alternatively, the battery separation unit 120 can identify that it is possible to form a good battery group 10 if the number of good batteries stored in the good battery storage unit 130 is greater than or equal to the number of defective batteries to be transferred to the defective battery storage unit 140.

[0044] If the battery separation unit 120 determines that it is possible to form a good battery group 10, it can perform step 250.

[0045] According to step 250, good batteries can be transferred to form a good battery group 10. For example, the battery separation unit 120 can transfer good batteries stored in the good battery storage unit 130, and by transferring them, a good battery group 10 containing a predetermined number of good batteries can be formed.

[0046] According to step 260, the good battery group 10 can be discharged. For example, if the battery separation unit 120 has formed a good battery group 10, it can discharge the good battery group 10 from the inspection-separation system 1 for other processes.

[0047] If the battery separation unit 120 determines that it is not possible to form a good battery group 10, it can perform step 270.

[0048] According to step 270, defective batteries can be transferred from a predetermined number of batteries to the defective battery storage unit 140. For example, if the number of good batteries stored in the good battery storage unit 130 is insufficient to form a good battery group 10, the battery separation unit 120 can identify that it is not possible to form a good battery group 10. If the battery separation unit 120 identifies that it is not possible to form a good battery group 10, it can transfer defective batteries from the supplied predetermined number of batteries to the defective battery storage unit 140.

[0049] According to step 280, good batteries from a predetermined number of batteries can be temporarily stored in the good battery storage unit 130. For example, if the battery separation unit 120 identifies that it is not possible to form a good battery group 10, it can temporarily store good batteries from the supplied predetermined number of batteries in the good battery storage unit 130.

[0050] The control unit 100 of the inspection-separation system 1 can perform the operations described in steps 210 to 280 above by controlling at least one of the battery inspection unit 110 and the battery separation unit 120.

[0051] The following describes in detail the flow of inspection-separation system 1 inspecting and separating secondary batteries, referring to the embodiments shown in Figures 3 to 10. While the embodiments in Figures 3 to 10 are described assuming a predetermined number of four batteries, this is merely an example for the sake of explanation and is not limiting. Since battery groups are supplied sequentially, each embodiment may be described based on the previously described embodiment. For example, the N+1 embodiment may be described after the Nth embodiment, based on the Nth embodiment.

[0052] Figure 3 shows the inspection and separation of a secondary battery according to the first embodiment of the present invention.

[0053] The battery inspection unit 110 may be supplied with a battery group containing four batteries. The battery inspection unit 110 can perform an inspection on the supplied battery group to determine whether or not the batteries are in good condition. The battery inspection unit 110 can determine whether or not each battery in the battery group is in good condition based on at least one of a voltage test, a current test, and a resistance test.

[0054] If all four batteries in the supplied battery group are good batteries 2, the battery inspection unit 110 can determine that all the batteries in the supplied battery group are good batteries 2. When the battery separation unit 120 determines that all the batteries in the supplied battery group are good batteries 2, it can discharge all four batteries as a good battery group 10.

[0055] In this case, the good battery storage section 130 and the bad battery storage section 140 may each contain zero batteries.

[0056] Figure 4 shows the inspection and separation of a secondary battery according to a second embodiment of the present invention.

[0057] If, among the four batteries included in the supplied battery group, three are good batteries 2 and one is a defective battery 3, the battery inspection unit 110 may determine that, among the four batteries, three are good batteries 2 and one is a defective battery 3.

[0058] When the battery separation unit 120 identifies the above determination, it can determine whether or not it is possible to form a good battery group 10 by transferring good batteries 2 from the good battery storage unit 130. In this case, since there are 0 good batteries 2 in the good battery storage unit 130 according to the first embodiment, it may not be possible to form a good battery group 10 containing 4 good batteries. The battery separation unit 120 identifies that it is not possible to form a good battery group 10 and can transfer 1 defective battery 3 to the defective battery storage unit 140 and 3 good batteries 2 to the good battery storage unit 130.

[0059] In this case, the good battery storage section 130 may contain three good batteries 2, and the bad battery storage section 140 may contain one bad battery 3.

[0060] Figure 5 shows the inspection and separation of a secondary battery according to the third embodiment of the present invention.

[0061] If, among the four batteries included in the supplied battery group, three are good batteries 2 and one is a defective battery 3, the battery inspection unit 110 may determine that, among the four batteries, three are good batteries 2 and one is a defective battery 3.

[0062] When the battery separation unit 120 identifies the above determination, it can determine whether or not it is possible to form a good battery group 10 by transferring a good battery 2 from the good battery storage unit 130. In this case, since there are three good batteries 2 according to the second embodiment in the good battery storage unit 130, it is possible to form a good battery group 10 containing four good batteries by transferring one good battery 2.

[0063] The battery separation unit 120 identifies that it is possible to form a good battery group 10, and transfers one defective battery 3 to the defective battery storage unit 140 and transfers one good battery 2 from the good battery storage unit 130, thereby forming a good battery group 10. The battery separation unit 120 can then discharge the good battery group 10, which includes four good batteries.

[0064] In this case, the good battery storage section 130 may contain two good batteries 2, and the bad battery storage section 140 may contain two bad batteries 3.

[0065] Figure 6 shows the inspection and separation of a secondary battery according to the fourth embodiment of the present invention.

[0066] If, among the four batteries included in the supplied battery group, there are two good batteries 2 and two defective batteries 3, the battery inspection unit 110 may determine that, among the four batteries, there are two good batteries 2 and two defective batteries 3.

[0067] When the battery separation unit 120 identifies the above determination, it can determine whether or not it is possible to form a good battery group 10 by transferring a good battery 2 from the good battery storage unit 130. In this case, since there are two good batteries 2 according to the third embodiment in the good battery storage unit 130, it is possible to form a good battery group 10 containing four good batteries by transferring the two good batteries 2.

[0068] The battery separation unit 120 identifies that it is possible to form a good battery group 10, and transfers two defective batteries 3 to the defective battery storage unit 140 and two good batteries 2 from the good battery storage unit 130, thereby forming a good battery group 10. The battery separation unit 120 can then discharge the good battery group 10, which includes four good batteries.

[0069] In this case, the good battery storage section 130 may contain 0 good batteries 2, and the bad battery storage section 140 may contain 4 bad batteries 3.

[0070] Figure 7 shows the inspection and separation of a secondary battery according to the fifth embodiment of the present invention.

[0071] If, among the four batteries included in the supplied battery group, there are 0 good batteries 2 and 4 defective batteries 3, the battery inspection unit 110 may determine that, among the four batteries, there are 0 good batteries 2 and 4 defective batteries 3.

[0072] When the battery separation unit 120 identifies the above determination, it can determine whether or not it is possible to form a good battery group 10 by transferring good batteries 2 from the good battery storage unit 130. In this case, since there are 0 good batteries 2 in the good battery storage unit 130 according to the fourth embodiment, it may not be possible to form a good battery group 10 containing 4 good batteries by transferring 0 good batteries 2.

[0073] The battery separation unit 120 can identify that it is not possible to form a good battery group 10 and can transfer the four defective batteries 3 to the defective battery storage unit 140. The battery separation unit 120 can prevent the good battery group 10 from being discharged.

[0074] In this case, the good battery storage section 130 may contain 0 good batteries 2, and the bad battery storage section 140 may contain 8 bad batteries 3.

[0075] Figure 8 shows the inspection and separation of a secondary battery according to the sixth embodiment of the present invention.

[0076] If, among the four batteries included in the supplied battery group, there is one good battery 2 and three defective batteries 3, the battery inspection unit 110 may determine that, among the four batteries, there is one good battery 2 and three defective batteries 3.

[0077] When the battery separation unit 120 identifies the above determination, it can determine whether or not it is possible to form a good battery group 10 by transferring good batteries 2 from the good battery storage unit 130. In this case, since there are 0 good batteries 2 in the good battery storage unit 130 according to the fifth embodiment, it may not be possible to form a good battery group 10 containing 4 good batteries by transferring good batteries 2.

[0078] The battery separation unit 120 can identify that it is not possible to form a good battery group 10, and can transfer the three defective batteries 3 to the defective battery storage unit 140 and the one good battery 2 to the good battery storage unit 130. The battery separation unit 120 can also prevent the good battery group 10 from being discharged.

[0079] In this case, the good battery storage section 130 may contain one good battery 2, and the defective battery storage section 140 may contain eleven defective batteries 3.

[0080] Figure 9 shows the inspection and separation of a secondary battery according to the seventh embodiment of the present invention.

[0081] If, among the four batteries included in the supplied battery group, four are good batteries 2 and zero are defective batteries 3, the battery inspection unit 110 may determine that, among the four batteries, four are good batteries 2 and zero are defective batteries 3.

[0082] When the battery separation unit 120 identifies that all four batteries included in the supplied battery group are good batteries 2, it can discharge the entire group of four batteries as a good battery group 10.

[0083] In this case, the good battery storage section 130 may contain one good battery 2, and the defective battery storage section 140 may contain eleven defective batteries 3.

[0084] Figure 10 shows the inspection and separation of a secondary battery according to the eighth embodiment of the present invention.

[0085] If, among the four batteries included in the supplied battery group, three are good batteries 2 and one is a defective battery 3, the battery inspection unit 110 may determine that, among the four batteries, three are good batteries 2 and one is a defective battery 3.

[0086] When the battery separation unit 120 identifies the above determination, it can determine whether or not it is possible to form a good battery group 10 by transferring a good battery 2 from the good battery storage unit 130. In this case, since there is one good battery 2 according to the seventh embodiment in the good battery storage unit 130, it is possible to form a good battery group 10 containing four good batteries by transferring the good battery 2.

[0087] The battery separation unit 120 can identify that it is possible to form a good battery group 10, and can transfer one defective battery 3 to the defective battery storage unit 140 and one good battery 2 from the good battery storage unit 130. The battery separation unit 120 can form a good battery group 10 when one good battery 2 is transferred. The battery separation unit 120 can discharge the good battery group 10, which contains four good batteries.

[0088] In this case, the good battery storage section 130 may contain 0 good batteries 2, and the bad battery storage section 140 may contain 12 bad batteries 3.

[0089] Figure 11 shows a secondary battery manufacturing system 1-1 including a secondary battery inspection-separation system 1 according to another embodiment of the present invention.

[0090] The secondary battery manufacturing system 1-1 (hereinafter referred to as "manufacturing system 1-1") may include the secondary battery inspection-separation system 1 described above.

[0091] The manufacturing system 1-1 may include a battery work unit 150. The battery work unit 150 may perform predetermined operations on good batteries included in the discharged good battery group 10. For example, the battery work unit 150 may perform lead cutting on good batteries included in the good battery group 10. In a specific example, the battery work unit 150 may identify the alignment state of the good batteries and the corresponding lead positions via a user interface (e.g., a cutting vision), and perform predetermined cutting operations based on the identified alignment state and lead positions.

[0092] The manufacturing system 1-1 may include a battery supply unit 160. The battery supply unit 160 can sequentially supply battery groups, each containing a predetermined number of batteries, to the battery inspection unit 110.

[0093] The manufacturing system 1-1 may include a battery information verification unit 170. The battery information verification unit 170 can verify battery information for each of a predetermined number of batteries included in a battery group. For example, if each of the predetermined number of batteries has a barcode containing battery information, the battery information verification unit 170 can obtain the battery information by reading the barcode. The battery information may include location information, identification information, and information on whether the battery is in good condition or not. Once the battery information verification unit 170 obtains the battery information, the battery separation unit 120 can transfer the predetermined number of batteries identified as good or bad to the good battery storage unit 130 or the bad battery storage unit 140 by using suction pads to pick them up based on their location information.

[0094] The manufacturing system 1-1 may include a battery alignment unit 180. The battery alignment unit 180 can perform mechanical alignment on each battery included in a supplied battery group. For example, it can align each battery included in a battery group before the battery inspection unit 110 performs inspection, in order to ensure a smooth inspection.

[0095] The control unit 100 may be electrically connected to at least one of the battery work unit 150, battery supply unit 160, battery information confirmation unit 170, and battery alignment unit 180, and can control the operation of at least one of the battery work unit 150, battery supply unit 160, battery information confirmation unit 170, and battery alignment unit 180.

[0096] Although the present invention has been described above, even if limited by embodiments and drawings, the present invention is not limited thereto, and various implementations are possible by persons with ordinary skill in the art to which the present invention pertains, within the equivalent scope of the technical concept of the present invention and the claims described below. [Explanation of symbols]

[0097] 1. Inspection and isolation system for secondary batteries 1-1 Manufacturing System for Secondary Batteries 2 good battery 3 Defective battery 10 Good Battery Groups 100 Control Unit 110 Battery Inspection Department 120 Battery separation section 130 Good battery storage section 140 Defective battery storage section 150 Battery Works Department 160 Battery supply section 170 Battery Information Confirmation Unit 180 Battery alignment section

Claims

1. A step of determining whether a predetermined number of batteries are good batteries or not, If the predetermined number of batteries are not all determined to be in good condition, If it is possible to form a group of good batteries consisting only of good batteries by transferring good batteries temporarily stored in a good battery storage unit to replace defective batteries, the process includes the step of transferring good batteries temporarily stored in the good battery storage unit, If it is not possible to form the group of good batteries by transferring good batteries temporarily stored in the good battery storage unit in place of the defective batteries, the process involves transferring good batteries from the predetermined number of batteries to the good battery storage unit for temporary storage, A method for inspecting and separating secondary batteries, comprising the step of discharging the good battery group if the good battery group is formed, If the number of good batteries stored in the good battery storage unit is equal to or greater than the number of defective batteries included in the predetermined number of batteries, it is identified that it is possible to form a good battery group consisting only of the predetermined number of good batteries. A method for inspecting and separating secondary batteries, wherein if the number of good batteries stored in the good battery storage section is less than the number of defective batteries included in the predetermined number of batteries, it is determined that it is not possible to form a group of good batteries consisting only of the predetermined number of good batteries.

2. The method for inspecting and separating secondary batteries according to claim 1, further comprising the step of discharging the predetermined number of batteries if it is determined that the entire predetermined number of batteries are in good condition.

3. The method for inspecting and separating secondary batteries according to claim 1 or 2, further comprising the step of transferring defective batteries, which are determined to be not good batteries from the predetermined number of batteries, to a defective battery storage section for storage.

4. In the step of determining whether or not the battery is in good condition, A method for inspecting and separating secondary batteries according to claim 1 or 2, wherein a predetermined number of batteries are determined to be good batteries based on at least one of a voltage test, a current test, and a resistance test.

5. The method for inspecting and separating secondary batteries according to claim 1 or 2, wherein the group of good batteries consists of the same number of good batteries as the predetermined number.

6. Before the step of determining whether or not it is a good battery, A method for inspecting and separating secondary batteries according to claim 1 or 2, further comprising the step of sequentially supplying battery groups, each containing a predetermined number of batteries.

7. The method for inspecting and separating a secondary battery according to claim 1 or 2, wherein the transfer is performed using an adsorption pad.

8. The method for inspecting and separating secondary batteries according to claim 1 or 2, further comprising the step of discharging a predetermined number of batteries or a group of good batteries into a battery work unit and performing a predetermined operation.

9. A battery inspection unit that determines whether a predetermined number of batteries are good batteries or not, A battery separation unit that separates and discharges a predetermined number of batteries, A good battery storage unit where good batteries are temporarily stored, The battery inspection unit and the battery separation unit include a control unit that is electrically connected to them, The control unit, The battery inspection unit is controlled to determine whether or not the predetermined number of batteries are good batteries. If the predetermined number of batteries are not all determined to be in good condition, If it is possible to form a group of good batteries by transferring good batteries temporarily stored in the good battery storage unit in place of defective batteries, then the good batteries temporarily stored in the good battery storage unit are transferred. If it is not possible to form the good battery group by transferring good batteries temporarily stored in the good battery storage unit in place of defective batteries, then good batteries from the predetermined number of batteries are transferred to the good battery storage unit and temporarily stored. A secondary battery inspection and separation system, which controls the battery separation unit to discharge the good battery group when the good battery group is formed, In the aforementioned battery separation section, If the number of good batteries stored in the good battery storage unit is equal to or greater than the number of defective batteries included in the predetermined number of batteries, it is determined that it is possible to form a good battery group consisting only of the predetermined number of good batteries, and the good batteries temporarily stored in the good battery storage unit are transferred. A secondary battery inspection and separation system that identifies that if the number of good batteries stored in the good battery storage section is less than the number of defective batteries included in the predetermined number of batteries, it is not possible to form a good battery group consisting only of the predetermined number of good batteries, and the good batteries from the predetermined number of batteries are transferred to the good battery storage section for temporary storage.

10. It further includes a defective battery storage section for storing defective batteries, The control unit, The secondary battery inspection and separation system according to claim 9, wherein the battery separation unit controls the transfer of defective batteries, which are determined to be not good batteries from the predetermined number of batteries, to a defective battery storage unit.

11. The control unit, The secondary battery inspection-separation system according to claim 9 or 10, wherein the battery inspection unit is controlled to determine whether a battery is in good condition based on at least one of a voltage test, a current test, and a resistance test performed on a predetermined number of batteries.

12. The secondary battery inspection-separation system according to claim 9 or 10, wherein the group of good batteries consists of the same number of good batteries as the predetermined number.

13. The battery separation unit transports the good battery using a suction pad, as described in claim 9 or 10, for the secondary battery inspection and separation system.

14. The secondary battery inspection-separation system according to claim 9 or 10, further comprising a battery supply unit that sequentially supplies battery groups, each containing a predetermined number of batteries, to the battery inspection unit.

15. The secondary battery inspection-separation system according to claim 9 or 10, comprising a battery work unit in which predetermined work is performed on the entire predetermined number of discharged batteries or the group of good batteries.

16. The control unit, If all of the predetermined number of batteries are determined to be in good condition, The secondary battery inspection-separation system according to claim 9 or 10, wherein the battery separation unit is controlled to discharge the entire predetermined number of batteries.

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