RECHARGEABLE BATTERY

• US 20080254359A1
• Filed: 04/02/2008
• Published: 10/16/2008
• Est. Priority Date: 04/11/2007
• Status: Active Grant

• Current Assignee: Samsung SDI Company Limited
• Original Assignee: Samsung SDI Company Limited
• Inventors: Seo, Kyungwon, Byun, Jeongdeok
• Granted Patent: US 8,501,342 B2
• Time in Patent Office: Days
• US Class Current: 429/163
• CPC Class Codes: H01M 10/4257 Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
• CPC Class Codes: H01M 10/46 Accumulators structurally combined with charging apparatus circuits for charging H02J7/00
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A rechargeable battery is provided including a bare cell having a can. The can has an electrode assembly. The electrode assembly has an electrode terminal withdrawn from one surface of the bare cell. A circuit is electrically coupled to the bare cell. The circuit includes a charge-discharge circuit and an antenna circuit. A case is connected to the electrode terminal for receiving and covering the circuit. An antenna assembly is on an outer surface of the bare cell. The antenna assembly includes a line antenna for receiving a radio frequency signal. The line antenna is coupled to the antenna circuit.

Claims

1. A rechargeable battery comprising:

a bare cell comprising a can having an electrode assembly, the electrode assembly having an electrode terminal withdrawn from one surface of the bare cell;

a circuit electrically coupled to the bare cell, the circuit comprising a charge-discharge circuit and an antenna circuit;

a case connected to the electrode terminal for receiving and covering the circuit; and

an antenna assembly on an outer surface of the bare cell, the antenna assembly comprising a line antenna for receiving a radio frequency signal, the line antenna being coupled to the antenna circuit.

2. The rechargeable battery of claim 1, further comprising an outer case covering the can and the antenna assembly.

3. The rechargeable battery of claim 1, wherein the antenna assembly comprises:

a first layer;

a substrate between an outer surface of the bare cell and the first layer, the line antenna being on the substrate; and

a second layer contacting the outer surface of the bare cell.

4. The rechargeable battery of claim 3, wherein the antenna assembly further comprises:

a metal plate between the substrate and the second layer.

5. The rechargeable battery of claim 3, wherein the second layer is an adhesive layer.

6. The rechargeable battery of claim 1, wherein the line antenna has two terminals, one terminal of the line antenna being electrically coupled to the antenna circuit, and the other terminal being electrically coupled to the can.

7. The rechargeable battery of claim 4, wherein the line antenna has two terminals, one terminal of the line antenna being electrically coupled to the antenna circuit and the other terminal passing through the substrate to be electrically coupled to the metal plate.

8. The rechargeable battery of claim 1, wherein the can comprises a barrier wall formed on an outer surface of the can for fixing the antenna assembly.

9. The rechargeable battery of claim 8, wherein the barrier wall is integral with the can.

10. The rechargeable battery of claim 8, wherein the barrier wall is in a longitudinal direction of the can.

11. The rechargeable battery of claim 6, wherein the bare cell further comprises a positive electrode, a negative electrode, and a separator, the negative electrode being electrically coupled to the can by a negative electrode terminal.

12. The rechargeable battery of claim 3, wherein the line antenna comprises two spaced antenna patterns on the substrate.

13. The rechargeable battery of claim 12, wherein a length of each of the two spaced antenna patterns are different from each other.