SECONDARY BATTERY CELL, BATTERY PACK, AND POWER CONSUMPTION DEVICE

• US 20130295421A1
• Filed: 11/17/2011
• Published: 11/07/2013
• Est. Priority Date: 11/26/2010
• Status: Active Grant

• Current Assignee: Murata Manufacturing Co Limited
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Ozawa, Atsushi, Nakamura, Kazuo, Teramoto, Shigeki
• Granted Patent: US 9,614,257 B2
• Time in Patent Office: Days
• US Class Current: 429/61
• 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 that stores identification information, wherein

the integrated circuit includes a wiring abnormality detection circuit, and

when the integrated circuit is removed from the secondary battery cell, the wiring abnormality detection circuit detects a wiring abnormality.

2. The secondary battery cell according to claim 1, wherein

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

3. The secondary battery cell according to claim 2, wherein

when the integrated circuit is removed from the secondary battery cell, the shielding wiring enters a non-conductive state or a short circuit state.

4. The secondary battery cell according to claim 2, wherein

when the secondary battery cell is removed from a secondary battery cell fixing unit, the shielding wiring enters a non-conductive state or a short circuit state.

5. The secondary battery cell according to claim 1, wherein

the integrated circuit includes a storage area, and

when the wiring abnormality detection circuit detects a wiring abnormality, the storage area stores information indicating that a wiring abnormality is detected.

6. The secondary battery cell according to claim 1, further comprising a fuse, wherein

when the wiring abnormality detection circuit detects a wiring abnormality, the integrated circuit disconnects the fuse.

15. A battery pack, comprising

a plurality of secondary battery cells according to claim 1.

16. A power consumption device, comprising

a battery pack including a plurality of secondary battery cells according to claim 1.

7. A secondary battery cell, comprising

an integrated circuit that stores identification information, wherein

the integrated circuit includes a photodetection means, and

when the integrated circuit is removed from the secondary battery cell, the photodetection means detects light.

8. A secondary battery cell, comprising

an integrated circuit that stores identification information, wherein

the integrated circuit includes a pressure detection means, and

when the integrated circuit is removed from the secondary battery cell, the pressure detection means detects a change in pressure.

9. A secondary battery cell, comprising

an integrated circuit that stores identification information, wherein

the integrated circuit includes a voltage measurement means for measuring a terminal voltage of the secondary battery cell, and

when the integrated circuit is removed from the secondary battery cell, the voltage measurement means detects a change in voltage.

10. The secondary battery cell according to claim 9, wherein

the voltage measurement means is formed of a reference voltage generation circuit and a comparison circuit.

11. A secondary battery cell, comprising

an integrated circuit that stores identification information, wherein

the integrated circuit includes a resistance value measurement means for measuring a resistance value in the secondary battery cell, and

when the integrated circuit is removed from the secondary battery cell, the resistance value measurement means detects a change in resistance value.

12. The secondary battery cell according to claim 11, wherein

the resistance value measurement means measures a resistance value of an electrolytic solution in the secondary battery cell.

13. A secondary battery cell, comprising

an integrated circuit that stores identification information, wherein

the integrated circuit includes a monitor circuit that monitors a clock frequency supplied from the outside, and

when the integrated circuit is removed from the secondary battery cell, the monitor circuit detects a change in clock frequency.

14. A secondary battery cell, comprising:

an integrated circuit that stores identification information; and

a detection means for detecting that the integrated circuit is removed from the secondary battery cell.