Card battery having smart card functions

• US 9,324,975 B2
• Filed: 12/01/2009
• Issued: 04/26/2016
• Est. Priority Date: 12/02/2008
• Status: Active Grant

• Current Assignee: Samsung SDI Company Limited
• Original Assignee: Samsung SDI Company Limited
• Inventors: Koh, Seok, Kim, Bongyoung, Park, Kyungho
• Primary Examiner(s): Gakh, Yelena G
• Application Number:
  US12/628,897
• Publication Number:
  US 20100136416A1
• Time in Patent Office: 2,338 Days
• US Class Current: 1/1
• CPC Class Codes: H01M 10/0436 Small-sized flat cells or batteries for portable equipment
• 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: H01M 2200/00 Safety devices for primary or secondary batteries
• CPC Class Codes: H01M 50/11 having a chip structure, e.g. micro-sized batteries integrated on chips
• 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

Disclosed is a card type battery that has both functions of a smart card and a battery. The card battery can prevent a short caused by contact with an external device, reduce a total thickness of the battery and improve bonding strength between internal elements of the battery.

Claims

1. A card battery having a smart card function, comprising:

a battery cell, wherein the battery cell is a bare cell comprising first and second electrode tabs, an electrode assembly, and a pouch surrounding the electrode assembly;

a protection circuit module comprising first and second lead plates respectively electrically coupled to the first and second electrode tabs of the battery cell;

a frame receiving the battery cell and protection circuit module;

a first cover provided on the frame;

a second cover provided under the frame; and

an IC chip is provided on the first or second cover and connected to the protection circuit module,

wherein the protection circuit module comprises;

a substrate;

a protection circuit unit provided on the substrate; and

a charging/discharging terminal that is provided on the substrate and electrically coupled to the protection circuit unit,

wherein an upper surface of the charging/discharging terminal is lower than an upper surface of the first cover,

wherein the protection circuit module operates and processes information with the IC chip,

wherein the protection circuit module further comprises an insulation layer provided on the substrate and abuts the side surface of the charging/discharging terminal,

wherein the upper surface of the charging/discharging terminal is lower than an upper surface of the insulation layer,

wherein the protection circuit module comprises a terminal cover configured to be opened when the charging/discharging terminal is connected to an electronic device,

wherein the electrode assembly comprises;

a first electrode plate;

a second electrode plate; and

a separator, and

wherein the electrode assembly is formed by interposing the separator between the first and second electrode plates and winding them together in a jelly-roll type.

2. The card battery of claim 1, wherein the substrate is formed of a flexible printed circuit board (FPCB).

3. The card battery of claim 1, wherein a magnetic strip is provided on the first or second cover, wherein the magnetic strip is configured to store information.

4. The card battery of claim 1, wherein a double-coated adhesive layer is provided between the battery cell and the first cover, and between the battery cell and the second cover respectively.

5. The card battery of claim 1, wherein a terminal hole is formed at a position corresponding to the upper surface of the charging/discharging terminal.

6. A card battery having a smart card function, comprising:

a battery cell, wherein the battery cell is a bare cell comprising an electrode assembly and a pouch surrounding the electrode assembly;

a protection circuit module electrically coupled to the battery cell;

a frame receiving the battery cell and protection circuit module;

a first cover, provided on the frame, being made of metal;

a second cover, provided under the frame, being made of metal; and

an IC chip is provided on the first or second cover and connected to the protection circuit module,

wherein a groove is formed on an outer surface of the first or second cover in a direction of a long edge of the cover,

wherein the protection circuit module operates and processes information with the IC chip,

wherein a magnetic strip is seated in the groove,

wherein the protection circuit module comprises;

a substrate;

an insulation layer;

a charging/discharging terminal; and

a terminal cover configured to be opened when the charging/discharging terminal is connected to an electronic device,

wherein the upper surface of the charging/discharging terminal is lower than an upper surface of the insulation layer,

wherein the electrode assembly comprises;

a first electrode plate;

a second electrode plate; and

a separator, and

wherein the electrode assembly is formed by interposing the separator between the first and second electrode plates and winding them together in a jelly-roll type.

7. The card battery of claim 6, wherein the first or second cover is formed of stainless steel.

8. The card battery of claim 6, wherein the depth of the groove is the same as a thickness of the magnetic strip.

9. The card battery of claim 6, wherein the protection circuit module further comprises:

a protection circuit unit provided on the substrate;

the charging/discharging terminal, provided on the substrate, being located at one side of the card battery;

a first lead plate, provided on the substrate, being electrically coupled to the first tab of the battery cell; and

a second lead plate, provided on the substrate, being electrically coupled to the second tab of the battery cell.

10. The card battery of claim 9, wherein the substrate is formed of a flexible printed circuit board.

11. A card battery having a smart card function, comprising:

a battery cell, wherein the battery cell is a bare cell comprising an electrode assembly and a pouch surrounding the electrode assembly;

a protection circuit module electrically coupled to the battery cell;

a frame receiving the battery cell and protection circuit module;

a first cover provided on the frame;

a second cover provided under the frame;

a first thermal bonding layer provided between an edge of an inner surface of the first cover and an edge of a first surface of the frame; and

an IC chip is provided on the first or second cover and connected to the protection circuit module,

wherein the protection circuit module operates and processes information with the IC chip,

wherein the protection circuit module comprises;

a substrate;

an insulation layer;

a charging/discharging terminal; and

a terminal cover configured to be opened when the charging/discharging terminal is connected to an electronic device, wherein the upper surface of the charging/discharging terminal is lower than an upper surface of the insulation layer,

wherein the electrode assembly comprises;

a first electrode plate;

a second electrode plate; and

a separator, and

wherein the electrode assembly is formed by interposing the separator between the first and second electrode plates and winding them together in a jelly-roll type.

12. The card battery of claim 11, further comprising a second thermal bonding layer provided between an edge of an inner surface of the second cover and an edge of a second surface of the frame.

13. The card battery of claim 11, wherein a double-coated adhesive layer is provided between the battery cell and the first cover, and between the battery cell and the second cover respectively.

14. The card battery of claim 11, wherein the protection circuit module further comprises:

a protection circuit unit provided on the substrate;

the charging/discharging terminal, provided on the substrate, being located at one side of the card battery;

a first lead plate, provided on the substrate, being electrically coupled to the first tab of the battery cell; and

a second lead plate, provided on the substrate, being electrically coupled to the second tab of the battery cell.