# US 2014/0193674 A1 · Battery module

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- Number: US 2014/0193674 A1
- Document ID: US20140193674A1
- Status: Published application
- Kind: A1
- Application number: 14/235,789
- Filed: 2012-07-10
- Published: 2014-07-10
- Earliest claimed: 2011-07-29
- Assignees: Panasonic Corporation
- Inventors: Hiroshi Takasaki; Shinya Geshi; Oose Okutani
- Web page: https://patentgrep.com/patent/US20140193674A1

## CPC

- H01M 50/394: {Gas-pervious parts or elements}
- H01M 50/258: Modular batteries; Casings provided with means for assembling
- H01M 50/367: Internal gas exhaust passages forming part of the battery cover or case; Double cover vent systems
- H01M 50/213: adapted for cells having curved cross-section, e.g. round or elliptic (H01M50/209, H01M50/216 take precedence)
- H01M 50/224: Metals
- H01M 50/271: Lids or covers for the racks or secondary casings
- H01M 50/503: characterised by the shape of the interconnectors
- H01M 50/505: comprising a single busbar
- H01M 50/512: Connection only in parallel
- 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 battery module includes: battery blocks which are connected to each other and each of which includes cells. Each of the cells has an opening through which a gas generated in the cell is released to an outside. Each of the battery blocks has a holder in which the cells are accommodated with the openings of the cells being aligned on a same side. On a side of the battery block on which the openings are aligned, a flat plate in touch with one end of the cells is disposed such that the gas passes above the flat plate. Each adjacent two of the battery blocks are disposed such that the flat plates are substantially flush with each other. The flat plate of one of the each adjacent two of the battery blocks extends above the holder of the other of the each adjacent two of the battery blocks.

## Claims

### Claim 1

A battery module comprising:
a plurality of battery blocks which are connected to each other and each of which includes a plurality of cells, wherein
each of the cells has an opening through which a gas generated in the cell is released to an outside of the cell,
each of the battery blocks has a holder in which the cells are accommodated with the openings of the cells being aligned on a same side,
on a side of the battery block on which the openings are aligned, a flat plate in touch with the cells is disposed such that the gas passes above the flat plate,
each adjacent two of the battery blocks are disposed such that the flat plates are substantially flush with each other, and the flat plate of one of the each adjacent two of the battery blocks extends above the holder of the other of the each adjacent two of the battery blocks, and
the holder is made of a plurality of pipes whose side surfaces are connected to each other.

### Claim 2 (depends on 1)

The battery module of claim 1, wherein
the flat plate is an electrode plate.

### Claim 3 (depends on 1)

The battery module of claim 1 wherein
an exhaust passage through which the gas released from the cell is released to an outside of the battery block is provided above the flat plate of the battery block.

### Claim 4 (depends on 3)

The battery module of claim 3, further comprising:
a lid above the flat plate of the battery block, wherein
the exhaust passage is formed under the lid.

### Claim 5 (depends on 3)

The battery module of claim 3, wherein
the exhaust passage of one of the each adjacent two of the battery blocks electrically connected to each other is coupled to and integrated with the exhaust passage of the other of the each adjacent two of the battery blocks.

### Claim 6

(canceled)

### Claim 7

A battery module comprising:
a plurality of battery blocks which are connected to each other and each of which includes a cell, wherein
the cell has an opening through which a gas generated in the cell is released to an outside of the cell,
each of the battery blocks has a holder in which the cell is accommodated,
on a side of the battery block on which the opening is located, a flat plate in touch with the cell is disposed such that the gas passes above the flat plate,
each adjacent two of the battery blocks are disposed such that the flat plates are substantially flush with each other, and the flat plate of one of the each adjacent two of the battery blocks extends above the holder of the other of the each adjacent two of the battery blocks, and
the holder is made of a plurality of pipes whose side surfaces are connected to each other.