# US 2014/0154567 A1 · Electroe constituent member for battery module

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- Number: US 2014/0154567 A1
- Document ID: US20140154567A1
- Status: Published application
- Kind: A1
- Application number: 14/233,598
- Filed: 2012-07-26
- Published: 2014-06-05
- Earliest claimed: 2011-07-28
- Assignees: Nissan Motor Co., Ltd.; Nifco Inc.
- Inventors: Ryuhei Nishida; Tomoaki Nagayama; Hirotatsu Kamimura; Yuichi Yamauchi
- Web page: https://patentgrep.com/patent/US20140154567A1

## CPC

- H01M 10/02: Details (of electrodes H01M4/00; of non-active parts H01M50/00)
- H01M 50/531: Electrode connections inside a battery casing
- 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
- 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

An electrode constituent member for a battery module includes a current-carrying member including an internal connection portion relative to a tab-shaped terminal of an electricity-storage cell, and an external connection portion exposed to an outside of the battery module; a fastener member for fastening a member electrically connecting electrodes of a plurality of battery modules to the external connection portion of the current-carrying member; and an insulating member positioned between the external connection portion of the current-carrying member and the electricity-storage cell. In an inner side of the external connection portion, clamp portions receiving the insulating member in between are formed. In the clamp portions and the insulating member, respectively, engagement portions, engaging with each other when the insulating member is received, are formed.

## Claims

### Claim 1

An electrode constituent member for a battery module, forming an electrode of the battery module formed by housing an electricity-storage cell in a case, comprising:
a current-carrying member including an internal connection portion electrically connected to the electricity-storage cell, and an external connection portion exposed to an outside of the case;
a fastener member passing through a through hole formed in the external connection portion of the current-carrying member from an inner side of the case so as to protrude one portion to the outside of the case, and by the protruded one portion, fastening a member electrically connecting electrodes of a plurality of battery modules; and
an insulating member positioned between the fastener member and the electricity-storage cell,
wherein the external connection portion is formed with a pair of clamp portions, extending to the inner side of the case and receiving the insulating member in between, and
the clamp portions and the insulating member respectively are formed with engagement portions engaging with each other when the insulating member is received.

### Claim 2 (depends on 1)

An electrode constituent member for a battery module according to claim 1, wherein one portion of the insulating member becomes an abutment portion abutting from the inner side of the case relative to the fastener member.

### Claim 3 (depends on 1)

An electrode constituent member for a battery module according to claim 1, wherein the fastener member is a bolt member.

### Claim 4 (depends on 1)

An electrode constituent member for a battery module according to claim 1, wherein the case includes a communication portion having a square hole shape communicating inside and outside thereof, and an external connection portion side of the electrode constituent member is inserted to pass through the communication portion, and
at a time of an insertion into the communication portion, outer corner portions are formed in the insulating member, which are housed respectively in an inner side of corresponding inner corner portions of the communication portion, and respectively abut against the inner corner portions thereof.

### Claim 5 (depends on 4)

An electrode constituent member for a battery module according to claim 4, wherein the clamp portions abut against an inner face other than the inner corner portions of the communication portion.