Battery pack

Patent metadata

Field	Value
Publication number	US-10658709-B2
Application number	US-201414539017-A
Country	US
Kind code	B2
Filing date	Nov 12, 2014
Priority date	Nov 22, 2013
Publication date	May 19, 2020
Grant date	May 19, 2020

Abstract

A battery pack includes one or more battery cells including a plurality of electrode tabs, a protective circuit module connected to the electrode tabs of the one or more battery cells, a frame accommodating the battery cells and the protective circuit module, and a protective tape covering the protective circuit module and the electrode tabs, a first surface of the protective tape including a plurality of grooves corresponding to the electrode tabs.

First claim

What is claimed is:

1. A battery pack, comprising:
battery cells, each battery cell including electrode tabs, opposing battery cells having electrode tabs facing each other;
a protective circuit module between opposing battery cells and connected to the electrode tabs of the battery cells, a first surface of the protective circuit module including wirings patterns connected to the electrode tabs;
a frame accommodating the battery cells and the protective circuit module; and
a protective tape including a first surface adhered to the first surface of the protective circuit module and the electrode tabs, the first surface of the protective tape including a plurality of grooves corresponding to the electrode tabs, wherein the electrode tabs are inserted in the grooves of the protective tape.

2. The battery pack as claimed in claim 1 , further comprising a label configured to fix the battery cells and the protective circuit module to the frame, a portion of the label being connected to a second surface of the protective tape.

3. The battery pack as claimed in claim 2 , wherein an interface between the second surface of the protective tape and the portion of the label connected to the protective tape is planar.

4. The battery pack as claimed in claim 1 , wherein depths of the grooves are equal to heights of the electrode tabs protruding from the protective circuit module.

5. The battery pack as claimed in claim 1 , wherein the protective tape further includes a porous structure for emitting heat generated from the protective circuit module.

6. The battery pack as claimed in claim 1 , wherein the protective tape includes:
a first protection layer positioned on the protective circuit module and having the plurality of grooves corresponding to the electrode tabs; and
a second protection layer positioned on the first protection layer to cover the electrode tabs.

7. The battery pack as claimed in claim 6 , wherein a thickness of the first protection layer equals a height of the electrode tabs protruding from the protective circuit module.

8. The battery pack as claimed in claim 7 , wherein each of the first protection layer and the electrode tabs is positioned directly on a same layer, and a top surface of the first protection layer and a top surface of the electrode tabs are coplanar.

9. The battery pack as claimed in claim 6 , wherein each of the first protection layer and the second protection layer includes polycarbonate (PC), polyethyleneterephthalate (PET), and/or a polycarbonate/acrylonitrile-butadiene-styrene (PC/ABS).

10. The battery pack as claimed in claim 1 , wherein the protective tape includes polycarbonate (PC).

11. The battery pack as claimed in claim 1 , wherein the protective tape is transparent.

12. The battery pack as claimed in claim 1 , wherein an entire second surface of the protective tape is flat, the second surface being opposite the first surface, and an entire portion of the first surface of the protective tape between adjacent grooves is flat.

13. The battery pack as claimed in claim 1 , further comprising a label directly on the protective tape, an entire contact surface between the label and the protective tape being flat and parallel to the protective circuit module.

14. The battery pack as claimed in claim 13 , wherein an entire contact surface between the protective tape and the protective circuit module is flat.

15. The battery pack as claimed in claim 1 , wherein the protective tape is in direct contact with the electrode tabs.

16. The battery pack as claimed in claim 15 , wherein the protective tape is in direct contact with a portion of the protective circuit module.

17. The battery pack as claimed in claim 16 , wherein the protective tape extends entirely between the electrode tabs.

18. The battery pack as claimed in claim 15 , wherein the protective tape includes a same material that extends along sidewalls of the electrode tabs and on top of the electrode tabs.

19. The battery pack as claimed in claim 1 , wherein a depth of each groove is less than a total thickness of the protective tape.

Assignees

• Samsung Sdi Co Ltd

Inventors

• Lee Eunjoong

Classifications

• H01K1/00

  Details · CPC title

• H01M10/4257 Primary

  Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries · CPC title

• H01M2010/4271

  Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing · CPC title

• H01M2220/30

  Batteries in portable systems, e.g. mobile phone, laptop · CPC title

• H01M10/425

  Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing (printed circuits H05K1/00) · CPC title