Secondary battery cell, battery pack, and electricity consumption device

• US 9,766,294 B2
• Filed: 11/17/2011
• Issued: 09/19/2017
• Est. Priority Date: 11/19/2010
• Status: Active Grant

• Current Assignee: Murata Manufacturing Co Limited
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Nakamura, Kazuo, Uesaka, Shinichi, Ozawa, Atsushi
• Primary Examiner(s): Hollington, Jermele M
• Assistant Examiner(s): RAJAPUTRA, SURESH KS
• Application Number:
  US13/884,663
• Publication Number:
  US 20130234721A1
• Time in Patent Office: 2,133 Days
• Field of Search: 324434
• CPC Class Codes: G01R 31/371 with remote indication, e.g. on external chargers
• CPC Class Codes: G01R 31/382 Arrangements for monitoring battery or accumulator variables, e.g. SoC
• CPC Class Codes: H01M 10/0422 Cells or battery with cylindrical casing
• 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 2010/4271 Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
• CPC Class Codes: H01M 2010/4278 Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
• CPC Class Codes: H01M 50/103 prismatic or rectangular H01M50/109, H01M50/11 take precedence
• CPC Class Codes: H01M 50/107 having curved cross-section, e.g. round or elliptic H01M50/103, H01M50/109, H01M50/11 take precedence
• CPC Class Codes: H01M 50/213 adapted for cells having curved cross-section, e.g. round or elliptic H01M50/209, H01M50/216 take precedence
• CPC Class Codes: H01M 50/569 Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals battery terminal connectors with integrated measuring arrangements G01R31/364
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02P 70/50 Manufacturing or production processes characterised by the final manufactured product

Abstract

There are provided a secondary battery cell, a battery pack, and an electric power consumption device having a configuration and structure capable of accurately and easily detecting the state of the secondary battery cell in the battery pack.

A secondary battery cell 20 of the present invention includes an integrated circuit (an IC chip) 60 having a measuring function to measure a battery status, the battery pack has a plurality of secondary battery cells of the present invention, and the electric power consumption device includes the battery pack of the present invention having the plurality of secondary battery cells of the present invention.

Claims

1. A secondary battery cell, comprising:

an integrated circuit configured to;

store individual information that includes a first identification number in a memory unit of the integrated circuit,

measure a battery status,

receive a second identification number from a control circuit which is outside the secondary battery cell, and

transmit at least one of the individual information or the measured battery status to outside of the secondary battery cell based on the first identification number that is same as the second identification number; and

a battery lid connected to the integrated circuit, wherein the integrated circuit configures the battery lid as an antenna.

2. The secondary battery cell according to claim 1, wherein the battery status measured by the integrated circuit further includes at least one of a battery current, a battery temperature or a battery terminal voltage.

3. The secondary battery cell according to claim 1, wherein the integrated circuit is further configured to operate using an electrical signal from the control circuit which is outside of the secondary battery cell.

4. The secondary battery cell according to claim 1, wherein the integrated circuit is further configured to wirelessly transmit the at least one of the individual information or the measured battery status to the control circuit which is outside of the secondary battery cell.

5. The secondary battery cell according to claim 1, wherein the integrated circuit is further configured to transmit the at least one of the individual information or the measured battery status to the control circuit which is outside of the secondary battery cell through wire transmission.

6. The secondary battery cell according to claim 5, wherein the integrated circuit is connected to at least one of an information input terminal or an information output terminal in the secondary battery cell.

7. The secondary battery cell according to claim 5, wherein the integrated circuit is connected to an electric power line in the secondary battery cell to supply an electric power to the control circuit which is outside of the secondary battery cell.

8. The secondary battery cell according to claim 7, wherein a bandpass filter is placed between the integrated circuit and the electric power line.

9. A battery pack, comprising:

a plurality of secondary battery cells, each of the plurality of secondary battery cells including;

an integrated circuit configured to;

store individual information that includes a first identification number in a memory unit of the integrated circuit,

measure a battery status,

receive a second identification number from a control circuit which is outside the secondary battery cell, and

transmit at least one of the individual information or the measured battery status to outside of a corresponding secondary battery cell of the plurality of secondary battery cells based on the first identification number that is same as the second identification number; and

a battery lid connected to the integrated circuit, wherein the integrated circuit configures the battery lid as an antenna.

10. An electric power consumption device, comprising:

a battery pack including a plurality of secondary battery cells, each of the plurality of secondary battery cells including;

an integrated circuit configured to;

store individual information that includes a first identification number in a memory unit of the integrated circuit,

measure a battery status,

receive a second identification number from a control circuit which is outside the secondary battery cell, and

transmit at least one of the individual information or the measured battery status to outside of a corresponding secondary battery cell of the plurality of secondary battery cells based on the first identification number that is same as the second identification number; and

a battery lid connected to the integrated circuit, wherein the integrated circuit configures the battery lid as an antenna.

11. A secondary battery cell, comprising:

an integrated circuit configured to

store individual information that includes a first identification number in a memory unit of the integrated circuit,

measure a battery status,

receive a second identification number from a control circuit which is outside the secondary battery cell, and

transmit at least one of the individual information or the measured battery status to outside of the secondary battery cell based on the first identification number that is same as the second identification number; and

an antenna, wherein an exterior material of the secondary battery cell is configured as the antenna.