CN-122017562-A - Battery inspection device and battery inspection method

Abstract

The battery inspection apparatus according to an embodiment may include a working portion that brings a conductive elastic member into contact with an exterior material of a battery to be inspected, and a measuring portion that applies a voltage between the exterior material of the battery and the conductive elastic member to measure a resistance value, and determines whether the exterior material of the battery is insulated or not by the resistance value. The battery inspection device and the battery inspection method according to the present disclosure can rapidly and accurately inspect whether or not a battery exterior material has insulation.

Inventors

• ZHANG HUIZHU
• ZHENG DONGMIN

Assignees

• SK新能源株式会社

Dates

Publication Date

20260512

Application Date

20251111

Priority Date

20241112

Claims (15)

1. 1. A battery inspection device comprising: a working part for bringing the conductive elastic member into contact with the exterior material of the battery to be inspected, and And a measuring unit for measuring a resistance value by applying a voltage between the battery exterior material and the conductive elastic member, and determining whether the battery exterior material is insulated or not by the resistance value.
2. 2. The battery inspection device according to claim 1, wherein the working portion includes a work table and a conductive elastic member provided to the work table.
3. 3. The battery inspection device according to claim 1, further comprising: And a pressing part including a pressing jig for applying pressure to the conductive elastic member so as to be in contact with the exterior material of the battery.
4. 4. The battery inspection device according to claim 3, wherein the battery to be inspected is moved in a horizontal direction, and the pressing jig is moved from an upper portion to a lower portion to be in contact with an exterior material of the battery.
5. 5. The battery inspection device according to claim 1, wherein the conductive elastic member covers an entire surface of the exterior material of the battery.
6. 6. The battery inspection device according to claim 1, wherein the measuring section includes a resistance measuring instrument that measures a resistance value, and includes a first terminal and a second terminal electrically connected to the exterior material of the battery and the conductive elastic member.
7. 7. The battery inspection device according to claim 6, wherein the conductive elastic member is provided on one surface and the other surface of the exterior material of the battery, and the resistance measuring instrument further comprises a third terminal, and the second terminal and the third terminal are electrically connected to conductive rubber provided on one surface and the other surface of the exterior material of the battery.
8. 8. The battery inspection device according to claim 1, wherein the battery to be inspected is a pouch-type battery cell.
9. 9. The battery inspection device according to claim 1, wherein the exterior material of the battery is formed by laminating a first insulating layer, a conductor layer, and a second insulating layer, and a side surface of the exterior material of the battery is exposed from the conductor layer.
10. 10. The battery inspection device according to claim 1, wherein comprising: And a transfer unit for transferring the battery to be inspected to the working unit.
11. 11. The battery inspection device according to claim 1, wherein the battery to be inspected is stopped at a working portion for a predetermined time or is moved without stopping.
12. 12. A battery inspection method comprising: A step of bringing the conductive elastic member into contact with the exterior material of the battery to be inspected, and And a step of applying a voltage between the battery exterior material and the conductive elastic member to measure a resistance value, and judging whether the battery exterior material is insulated or not by the resistance value.
13. 13. The battery inspection method according to claim 12, wherein the battery to be inspected is moved in a horizontal direction, the conductive elastic member is moved from an upper portion to a lower portion, and is brought into contact with an exterior material of the battery at a predetermined pressure.
14. 14. The battery inspection method according to claim 12, wherein an exterior material of the battery is formed by laminating a first insulating layer, a conductor layer, and a second insulating layer, and the resistance value is measured between the conductor layer and the conductive elastic member.
15. 15. The battery inspection method according to claim 12, wherein the conductive elastic member covers an entire face of an exterior material of the battery.

Description

Battery inspection device and battery inspection method Technical Field The present disclosure relates to a battery inspection apparatus and a battery inspection method, and more particularly, to a battery inspection apparatus and a battery inspection method that can rapidly and accurately inspect whether a battery has insulation. Background A secondary battery is a battery manufactured to convert electric energy into chemical energy for storage, and can be repeatedly used by charging and discharging a plurality of times. Secondary batteries are widely used in various industries due to their economical and environmental characteristics. In particular, the lithium secondary battery (Lithium Secondary Battery) among secondary batteries is widely used in the entire industry including portable devices requiring high-density energy. Secondary batteries may be classified into battery cells, battery packs (e.g., battery modules, battery packs, etc.) according to their units. The battery module may include a plurality of battery cells, and the battery pack may include a plurality of battery modules. Secondary batteries may be defective due to physical impact from the outside in their manufacturing processes or defects in the manufacturing processes, etc. Such a defect of the secondary battery may cause problems such as explosion and fire. There is a need for a technique for inspecting defects of a secondary battery. Disclosure of Invention Technical problem An embodiment of the present disclosure provides a battery inspection apparatus and a battery inspection method. An embodiment of the present disclosure provides a battery inspection apparatus and a battery inspection method that can rapidly and accurately inspect whether a battery has insulation. An embodiment of the present disclosure provides a battery inspection apparatus and a battery inspection method that can inspect whether a battery cell has insulation. On the other hand, the battery inspection apparatus and the battery inspection method according to the present disclosure may be widely applied to the Green Technology (Green Technology) fields such as electric vehicles (ELECTRIC VEHICLE), battery charging stations (Battery Charging Station), energy storage systems (Energy Storage System, ESS), and other solar Power generation (Photovoltaics) and Wind Power generation (windpower) using batteries. In addition, the battery inspection apparatus and the battery inspection method according to the present disclosure may be used for environmental protection (eco-friendly) vehicles (Mobility) and the like including electric vehicles and Hybrid (Hybrid) vehicles, which prevent climate change by suppressing air pollution and greenhouse gas emission. Technical proposal An embodiment of the present disclosure provides a battery inspection apparatus including a working portion that brings a conductive elastic member into contact with an exterior material of a battery to be inspected, and a measuring portion that applies a voltage between the exterior material of the battery and the conductive elastic member to measure a resistance value, and judges whether the exterior material of the battery is insulated or not by the resistance value. In an embodiment, the working portion may include a working table and a conductive elastic member disposed on the working table. In an embodiment, the battery inspection device may further include a pressing portion including a pressing jig that applies pressure to the conductive elastic member so as to be in contact with the exterior material of the battery. In one embodiment, the battery to be inspected may be moved in a horizontal direction, and the pressing jig may be moved from the upper portion to the lower portion to be in contact with the exterior material of the battery. In one embodiment, the conductive elastic member may cover an entire surface of the exterior material of the battery. In an embodiment, the measuring part may include a resistance measuring instrument that measures a resistance value including a first terminal and a second terminal electrically connected with the exterior material of the battery and the conductive elastic member. In one embodiment, the conductive elastic member may be disposed on one surface and the other surface of the exterior material of the battery, and the resistance measuring instrument may further include a third terminal, and the second terminal and the third terminal may be electrically connected to conductive rubber disposed on one surface and the other surface of the exterior material of the battery. In an embodiment, the battery to be inspected may be a pouch-type battery cell. In an embodiment, the battery may be formed by stacking a first insulating layer, a conductor layer, and a second insulating layer, and the side surface of the battery may be exposed from the conductor layer. In one embodiment, the battery inspection apparatus may include a transfer portion for transferring