Protection circuit module and battery pack containing it

The protection circuit module with spacers and extensions addresses dead space issues, achieving standardized battery pack appearance and stability by filling gaps and preventing structural defects.

JP2026062522APending Publication Date: 2026-04-09SAMSUNG SDI CO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-09-24
Publication Date
2026-04-09

AI Technical Summary

Technical Problem

Existing protection circuit modules for secondary batteries face issues with dead space formation due to standardized designs not accommodating varying battery pack sizes and shapes, leading to inefficiencies in manufacturing and potential structural instability.

Method used

A protection circuit module design featuring spacers that fill the dead space between the circuit board and printed circuit board, ensuring a standardized appearance and stability by coupling without steps, using spacers that match the thickness of the circuit board and incorporating extensions to accommodate off-center electrode tabs.

Benefits of technology

This design allows for standardized battery pack appearance, enhances manufacturing efficiency, and prevents structural issues like wrinkles and twists, while ensuring stable placement and protection against impacts.

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Abstract

This provides a protection circuit module that allows for the standardization of the battery pack's appearance. [Solution] The protective circuit module is electrically connected to lead tabs protruding from one side of a bare cell and includes a protective circuit board covered with a molding member on one side, a printed circuit board (PCB) disposed on the other side of the protective circuit board facing the one side, and a first spacer coupled to one end of the protective circuit board with respect to the longitudinal direction of the protective circuit board, the protective circuit board includes a 1_1 coupling portion for coupling with the first spacer, and the first spacer may include a 1_2 coupling portion corresponding to the 1_1 coupling portion.
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Citation Information

Patent Citations

  • Protective circuit module for secondary battery andbattery pack using it

    KR100760784B1