# US 2016/0260960 A1 · Rechargeable battery having upper cover

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- Number: US 2016/0260960 A1
- Document ID: US20160260960A1
- Status: Published application
- Kind: A1
- Application number: 14/847,338
- Filed: 2015-09-08
- Published: 2016-09-08
- Earliest claimed: 2015-03-03
- Assignees: Samsung SDI Co., Ltd.
- Applicants: Samsung SDI Co., Ltd.
- Inventors: Min-Hyung GUEN
- Web page: https://patentgrep.com/patent/US20160260960A1

## CPC

- H01M 50/578: in response to pressure
- H01M 50/147: Lids or covers
- H01M 50/15: for prismatic or rectangular cells (H01M50/153 takes precedence)
- H01M 50/176: for prismatic or rectangular cells (H01M50/181 takes precedence)
- H01M 50/55: on the same side of the cell
- H01M 50/553: Terminals adapted for prismatic, pouch or rectangular cells
- H01M 50/567: by fixing means, e.g. screws, rivets or bolts
- H01M 50/591: Covers
- H01M 10/052: Li-accumulators
- H01M 50/531: Electrode connections inside a battery casing
- H01M 2200/20: Pressure-sensitive devices
- H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane
- Y02E 60/10: Energy storage using batteries
- Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product
- 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
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

A rechargeable battery including an electrode assembly including a first electrode and a second electrode, a case that receives the electrode assembly therein, a first terminal electrically connected to the first electrode, a second terminal electrically connected to the second electrode, a cap plate coupled with an opening of the case and electrically connected to the first electrode, the cap plate including a short circuit hole, a short circuit member located in the short circuit hole, the short circuit member being deformable to electrically connect the cap plate to the second terminal, and an upper cover that covers the short circuit hole. The second terminal includes a positioning groove into which a lateral end of the upper cover is insertable, the upper cover being slidably installed with respect to the second terminal.

## Claims

### Claim 1

A rechargeable battery, comprising:
an electrode assembly including a first electrode and a second electrode;
a case that receives the electrode assembly therein;
a first terminal electrically connected to the first electrode;
a second terminal electrically connected to the second electrode;
a cap plate coupled with an opening of the case and electrically connected to the first electrode, the cap plate including a short circuit hole;
a short circuit member located in the short circuit hole, the short circuit member being deformable to electrically connect the cap plate to the second terminal; and
an upper cover that covers the short circuit hole,
wherein the second terminal includes a positioning groove into which a lateral end of the upper cover is insertable, the upper cover being slidably installed with respect to the second terminal.

### Claim 2 (depends on 1)

The rechargeable battery as claimed in claim 1, further including an upper insulator member located under the upper cover and the second terminal.

### Claim 3 (depends on 2)

The rechargeable battery as claimed in claim 2, wherein:
the upper insulator member includes a bottom that contacts the cap plate and a sidewall that protrudes from a lateral end of the bottom, and
the upper cover is press-fitted in the upper insulator member.

### Claim 4 (depends on 3)

The rechargeable battery as claimed in claim 3, wherein the upper cover includes upper plate and a lateral plate that protrudes toward the cap plate from a lateral end of the upper plate, the lateral plate being inserted in the upper insulator member.

### Claim 5 (depends on 4)

The rechargeable battery as claimed in claim 4, wherein:
the upper plate includes a guide protrusion that protrudes to an outer side of the upper cover, and
the sidewall of the upper insulator member includes a guide groove in which the guide protrusion is inserted.

### Claim 6 (depends on 5)

The rechargeable battery as claimed in claim 5, wherein the guide groove is longer than the guide protrusion in a sliding movement direction of the upper cover.

### Claim 7 (depends on 4)

The rechargeable battery as claimed in claim 4, wherein:
the upper cover is located at an inner side of the sidewall of the upper insulator member, and
the upper cover includes a blocking wall that protrudes toward the cap plate.

### Claim 8 (depends on 7)

The rechargeable battery as claimed in claim 7, wherein the blocking wall includes a transverse section having a ring shape.

### Claim 9 (depends on 7)

The rechargeable battery as claimed in claim 7, further including a short circuit plate under the second terminal, the short circuit plate including a connection hole located at an upper portion of the short circuit member.

### Claim 10 (depends on 9)

The rechargeable battery as claimed in claim 9, wherein the short circuit plate further includes an exhaust groove under the blocking wall of the upper cover.

### Claim 11 (depends on 10)

The rechargeable battery as claimed in claim 10, wherein the exhaust groove is connected to the connection hole.

### Claim 12 (depends on 10)

The rechargeable battery as claimed in claim 10, wherein the sidewall of the upper insulator member includes a gap spaced apart from the short circuit plate and communicating with the exhaust groove.

### Claim 13 (depends on 10)

The rechargeable battery as claimed in claim 10, wherein the blocking wall contacts a top surface of the short circuit plate.

### Claim 14 (depends on 13)

The rechargeable battery as claimed in claim 13, wherein the exhaust groove is selectively connected to external air according to a sliding position of the upper cover.

### Claim 15 (depends on 9)

The rechargeable battery as claimed in claim 9, wherein the short circuit plate includes a short circuit protrusion that surrounds the connection hole.

### Claim 16 (depends on 1)

The rechargeable battery as claimed in claim 1, wherein the short circuit member includes an edge part and a curved part, the curved part being convexly curved in a downward direction from the edge part.
