Secondary battery cell, battery pack, and power consumption device

• US 9,614,257 B2
• Filed: 11/17/2011
• Issued: 04/04/2017
• Est. Priority Date: 11/26/2010
• Status: Active Grant

• Current Assignee: Murata Manufacturing Co Limited
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Teramoto, Shigeki, Ozawa, Atsushi, Nakamura, Kazuo
• Primary Examiner(s): Chmielecki, Scott J
• Application Number:
  US13/988,097
• Publication Number:
  US 20130295421A1
• Time in Patent Office: 1,965 Days
• CPC Class Codes: G06F 21/81 by operating on the power supply, e.g. enabling or disabling power-on, sleep or resume operations
• CPC Class Codes: H01M 10/02 Details of electrodes H01M4/00; of non-active parts H01M50/00
• CPC Class Codes: H01M 10/425 Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing printed circuits H05K1/00
• CPC Class Codes: H01M 10/48 Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569
• CPC Class Codes: H01M 50/574 Devices or arrangements for the interruption of current
• CPC Class Codes: H01M 50/576 in response to theft
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

Provided is a secondary battery cell capable of reliably preventing an integrated circuit provided to the secondary battery cell from being removed from the secondary battery cell.

A secondary battery cell (20) includes an integrated circuit (IC chip) (50) that stores identification information (for example, identification number (ID number) given to the integrated circuit itself). The integrated circuit (50) includes a wiring abnormality detection circuit. When the integrated circuit (50) is removed from the secondary battery cell (20), the wiring abnormality detection circuit detects a wiring abnormality.

Claims

1. A secondary battery cell, comprising:

an integrated circuit configured to store identification information,

wherein the integrated circuit is connected to a shielding wiring provided on the secondary battery cell, and

in an event the integrated circuit is removed from the secondary battery cell, the shielding wiring is configured to enter one of a non-conductive state or a short circuit state.

2. The secondary battery cell according to claim 1, wherein the integrated circuit comprises a wiring abnormality detection circuit connected to the shielding wiring, and in an event the integrated circuit is removed from the secondary battery cell, the wiring abnormality detection circuit is configured to detect a wiring abnormality.

3. The secondary battery cell according to claim 2, wherein in an event the secondary battery cell is removed from a secondary battery cell fixing unit, the shielding wiring is configured to enter one of the non-conductive state or the short circuit state.

4. The secondary battery cell according to claim 2,

wherein the integrated circuit includes a storage area, and

in an event the wiring abnormality detection circuit detects the wiring abnormality, the storage area is configured to store information indicating that the wiring abnormality is detected.

5. The secondary battery cell according to claim 2, further comprising a fuse, wherein in an event the wiring abnormality detection circuit detects the wiring abnormality, the integrated circuit is configured to disconnect the fuse.

7. The secondary battery cell according to claim 1, wherein the identification information comprises an identification number (ID number) given to the integrated circuit.

10. The secondary battery cell according to claim 1, wherein the identification information comprises information to authenticate the secondary battery cell.

6. A battery pack, comprising:

a plurality of secondary battery cells, wherein each secondary battery cell of the plurality of secondary battery cells comprises;

an integrated circuit configured to store identification information,

wherein the integrated circuit includes a wiring abnormality detection circuit,

in an event the integrated circuit is removed from the secondary battery cell, the wiring abnormality detection circuit is configured to detect a wiring abnormality, and

wherein the wiring abnormality detection circuit is connected to a shielding wiring that is provided on the secondary battery cell.

9. The battery pack according to claim 6, further comprising a circuit configured to determine whether the integrated circuit is removed from the secondary battery cell based on the identification information from the integrated circuit.

8. A secondary battery cell, comprising:

an integrated circuit configured to store identification information,

wherein the integrated circuit includes a wiring abnormality detection circuit, and

in an event the integrated circuit is removed from the secondary battery cell, the wiring abnormality detection circuit is configured to detect a wiring abnormality, and

wherein the wiring abnormality detection circuit is connected to shielding wiring that is provided to the secondary battery cell.