Secondary battery cell, battery pack, and electricity consumption device

• US 9,970,989 B2
• Filed: 08/18/2017
• Issued: 05/15/2018
• Est. Priority Date: 11/19/2010
• Status: Active Grant

• Current Assignee: Murata Manufacturing Co Limited
• Original Assignee: Murata Manufacturing Co Limited
• Inventors: Nakamura, Kazuo, Uesaka, Shinichi, Ozawa, Atsushi
• Primary Examiner(s): Hollington, Jermele M
• Assistant Examiner(s): RAJAPUTRA, SURESH KS
• Application Number:
  US15/680,260
• Publication Number:
  US 20170343611A1
• Time in Patent Office: 270 Days
• Field of Search: None
• 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 having a measuring function to measure a battery status, wherein the measured battery status is at least one of physical quantities selected from the group consisting of a battery temperature, a battery current, and a battery terminal voltage, wherein the integrated circuit is configured to;

receive an electrical signal from outside the secondary battery cell and obtain an electric power to operate based on rectification of the electrical signal;

store individual information including a first identification number, and receive, after the reception of the electrical signal from outside the secondary battery cell, a second identification number from outside the secondary battery cell; and

transmit one of the individual information or the measured battery status to the outside, based on the received second identification number that corresponds to the first identification number stored in the integrated circuit.

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

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

4. The secondary battery cell according to claim 3, wherein the integrated circuit is connected to an information input/output terminal in the secondary battery cell.

5. The secondary battery cell according to claim 1, further comprising a bandpass filter is between the integrated circuit and an electric power line.

6. The secondary battery cell according to claim 1, wherein an exterior material of the secondary battery cell is configured as an antenna.

7. A battery pack, comprising:

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

an integrated circuit having a measuring function to measure a battery status, wherein the measured battery status is at least one of physical quantities selected from the group consisting of a battery temperature, a battery current, and a battery terminal voltage, wherein the integrated circuit is configured to;

receive an electrical signal from outside the secondary battery cell and obtain an electric power to operate based on rectification of the electrical signal;

store individual information including a first identification number, and receive, after the reception of the electrical signal from outside the secondary battery cell, a second identification number from outside the secondary battery cell; and

transmit one of the individual information or the measured battery status to the outside, based on the received second identification number that corresponds to the first identification number stored in the integrated circuit.

8. 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 having a measuring function to measure a battery status, wherein the measured battery status is at least one of physical quantities selected from the group consisting of a battery temperature, a battery current, and a battery terminal voltage, wherein the integrated circuit is configured to;

receive an electrical signal from outside the secondary battery cell and obtain an electric power to operate based on rectification of the electrical signal;

store individual information including a first identification number, and receive, after the reception of the electrical signal from outside the secondary battery cell, a second identification number from outside the secondary battery cell; and

transmit one of the individual information or the measured battery status to the outside, based on the received second identification number that corresponds to the first identification number stored in the integrated circuit.