# US 2014/0193704 A1 · Rechargeable battery

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- Number: US 2014/0193704 A1
- Document ID: US20140193704A1
- Status: Published application
- Kind: A1
- Application number: 13/917,778
- Filed: 2013-06-14
- Published: 2014-07-10
- Earliest claimed: 2013-01-09
- Assignees: Robert Bosch GmbH; Samsung SDI Co., Ltd.
- Applicants: Robert Bosch GmbH; Samsung SDI Co., Ltd.
- Inventors: Duk-Jung KIM
- Web page: https://patentgrep.com/patent/US20140193704A1

## CPC

- H01M 50/543: Terminals
- H01M 50/176: for prismatic or rectangular cells (H01M50/181 takes precedence)
- H01M 50/538: Connection of several leads or tabs of wound or folded electrode stacks
- H01M 50/55: on the same side of the cell
- H01M 50/553: Terminals adapted for prismatic, pouch or rectangular cells
- H01M 50/566: by welding, soldering or brazing
- Y02E 60/10: Energy storage using batteries
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A rechargeable battery may include a case that receives an electrode assembly, a cap plate that closes and seals an opening of the case, an electrode terminal that passes through the cap plate and is electrically connected to the electrode assembly, an insulator between the electrode terminal and the cap plate, the insulator electrically insulating the electrode terminal and the cap plate, and an electrification switch in the insulator. The electrification switch may electrically connect the electrode terminal to the cap plate according to manipulation of the electrification switch.

## Claims

### Claim 1

A rechargeable battery, comprising:
a case that receives an electrode assembly;
a cap plate that closes and seals an opening of the case;
an electrode terminal that passes through the cap plate and is electrically connected to the electrode assembly;
an insulator between the electrode terminal and the cap plate, the insulator electrically insulating the electrode terminal and the cap plate; and
an electrification switch in the insulator, the electrification switch electrically connecting the electrode terminal to the cap plate according to manipulation of the electrification switch.

### Claim 2 (depends on 1)

The rechargeable battery as claimed in claim 1, wherein:
the electrode terminal includes:
a negative terminal connected to a negative electrode of the electrode assembly, and
a positive terminal connected to a positive electrode of the electrode assembly,
the insulator includes a positive insulator that insulates the positive terminal, and
the electrification switch is in the positive insulator.

### Claim 3 (depends on 2)

The rechargeable battery as claimed in claim 2, wherein the positive insulator includes:
a terminal receiver that receives and supports the positive terminal, and
a switch receiver that is on one side of the terminal receiver and receives the electrification switch.

### Claim 4 (depends on 3)

The rechargeable battery as claimed in claim 3, wherein the electrification switch includes:
a button in the switch receiver, and
an access member having:
a first end connected to a portion of the cap plate in the switch receiver, and
a second end that electrically accesses the positive terminal according to manipulation of the button.

### Claim 5 (depends on 4)

The rechargeable battery as claimed in claim 4, wherein:
the button has a first manipulation state and a second manipulation state,
when the button is in the first manipulation state, a top surface of the button is a first distance from the cap plate and the second end of the access member is spaced from the positive terminal,
when the button is in the second manipulation state, the top surface of the button is a second distance from the cap plate, and the second end of the access member contacts the positive terminal, and
the first distance is greater than the second distance.

### Claim 6 (depends on 4)

The rechargeable battery as claimed in claim 4, wherein the button includes a hook that hooks onto a protrusion protruding from an internal wall of the switch receiver according to manipulation of the button.

### Claim 7 (depends on 6)

The rechargeable battery as claimed in claim 6, wherein:
the access member includes:
a vertical unit that extends in a vertical direction in the switch receiver, and
a horizontal unit bent in a horizontal direction from the vertical unit, and
the horizontal unit is pushed in the horizontal direction and accesses the positive terminal by pushing the button down.

### Claim 8 (depends on 7)

The rechargeable battery as claimed in claim 7, wherein the button includes a groove that corresponds to the vertical unit and the horizontal unit.

### Claim 9 (depends on 8)

The rechargeable battery as claimed in claim 8, wherein:
the positive insulator includes a cell barrier that partitions the terminal receiver and the switch receiver,
the cell barrier defines a through hole for the horizontal unit to progress to the positive terminal.

### Claim 10 (depends on 2)

The rechargeable battery as claimed in claim 2, further comprising:
an external short-circuit unit between the negative terminal and the cap plate, the short-circuit unit short-circuiting the negative terminal to the cap plate when an internal pressure is increased.

### Claim 11 (depends on 2)

The rechargeable battery as claimed in claim 2, wherein the case and the cap plate are made of aluminum.

### Claim 12 (depends on 1)

The rechargeable battery as claimed in claim 1, wherein:
the electrode terminal includes:
a negative terminal connected to a negative electrode of the electrode assembly, and
a positive terminal connected to a positive electrode of the electrode assembly,
the insulator includes a negative insulator that insulates the negative terminal, and
the electrification switch is in the negative insulator.

### Claim 13 (depends on 12)

The rechargeable battery as claimed in claim 12, wherein the negative insulator includes:
a terminal receiver that receives and supports the negative terminal, and
a switch receiver that is on one side of the terminal receiver and receives the electrification switch.

### Claim 14 (depends on 13)

The rechargeable battery as claimed in claim 13, wherein the electrification switch includes:
a button in the switch receiver, and
an access member having:
a first end connected to a portion of the cap plate in the switch receiver, and
a second end that electrically accesses the negative terminal according to manipulation of the button.

### Claim 15 (depends on 14)

The rechargeable battery as claimed in claim 14, wherein:
the button has a first manipulation state and a second manipulation state,
when the button is in the first manipulation state, a top surface of the button is a first distance from the cap plate and the second end of the access member is spaced from the negative terminal,
when the button is in the second manipulation state, the top surface of the button is a second distance from the cap plate, and the second end of the access member contacts the negative terminal, and
the first distance is greater than the second distance.

### Claim 16 (depends on 14)

The rechargeable battery as claimed in claim 14, wherein the button includes a hook that hooks onto a protrusion protruding from an internal wall of the switch receiver according to manipulation of the button.

### Claim 17 (depends on 14)

The rechargeable battery as claimed in claim 14, wherein:
the access member includes:
a vertical unit that extends in a vertical direction in the switch receiver, and
a horizontal unit bent in a horizontal direction from the vertical unit, and
the horizontal unit is pushed in the horizontal direction and accesses the negative terminal by pushing the button down.

### Claim 18 (depends on 17)

The rechargeable battery as claimed in claim 17, wherein the button includes a groove that corresponds to the vertical unit and the horizontal unit.

### Claim 19 (depends on 18)

The rechargeable battery as claimed in claim 18, wherein:
the negative insulator includes a cell barrier that partitions the terminal receiver and the switch receiver,
the cell barrier defines a through hole for the horizontal unit to progress to the negative terminal.

### Claim 20 (depends on 12)

The rechargeable battery as claimed in claim 12, wherein the case and the cap plate are made of stainless steel.