# US 10,374,268 B2 · Battery module

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- Number: US 10,374,268 B2
- Document ID: US10374268B2
- Status: Granted
- Kind: B2
- Application number: 15/714,639
- Filed: 2017-09-25
- Published: 2018-04-05
- Granted: 2019-08-06
- Earliest claimed: 2016-10-05
- Assignees: Yazaki Corporation
- Applicants: Yazaki Corporation
- Inventors: Takao Shoji; Shinichi Yanagihara
- Web page: https://patentgrep.com/patent/US10374268B2

## CPC

- H01M 10/48: Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte (constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569)
- H01M 10/482: {for several batteries or cells simultaneously or sequentially}
- H01M 10/488: {Cells or batteries combined with indicating means for external visualization of the condition, e.g. by change of colour or of light density}
- H01M 50/209: adapted for prismatic or rectangular cells (H01M50/216 takes precedence)
- H01M 50/256: Carrying devices, e.g. belts
- H01M 50/262: with fastening means, e.g. locks
- H01M 50/505: comprising a single busbar
- H01M 50/51: Connection only in series
- H01M 50/517: by fixing means, e.g. screws, rivets or bolts
- H01M 50/569: Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals (battery terminal connectors with integrated measuring arrangements G01R31/364)
- H01M 50/244: Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
- 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

A battery module includes a plurality of battery cells each having two electrode terminals, i.e., positive and negative electrode terminals; a first housing case that houses a first battery cell group; a second housing case that houses a second battery cell group; and a fixing tool that fixes the first and the second housing cases by making the electrode terminals in the first battery cell group face the electrode terminals in the second battery cell group. The second battery group is housed in the second housing case while being inclined relative to the first battery cell group, connected to the negative electrode terminal of each battery cell in the first battery cell group facing the positive electrode terminal of the battery cell, and connected to the positive electrode terminal of each battery cell in the first battery cell group facing the negative electrode terminal of the battery cell.

## Claims

### Claim 1

A battery module, comprising:
a plurality of battery cells each having two electrode terminals of positive and negative electrode terminals;
a first housing case that houses a first battery cell group formed of a part of the battery cells;
a second housing case that houses a second battery cell group formed of the battery cells different from the battery cells in the first battery cell group; and
a fixing tool that fixes the first housing case and the second housing case in a fixed state by making the electrode terminals in the first battery cell group face the electrode terminals in the second battery cell group, wherein
the second battery cell group is housed in the second housing case while being inclined relative to the first battery cell group,
the positive electrode terminal of each of the battery cells in the second battery cell group is connected to the negative electrode terminal of each of the battery cells in the first battery cell group facing the positive electrode terminal of each of the battery cells in the second battery cell group, and
the negative electrode terminal of each of the battery cells in the second battery cell group is connected to the positive electrode terminal of each of the battery cells in the first battery cell group facing the negative electrode terminal of each of the battery cells in the second battery cell group.

### Claim 2 (depends on 1)

The battery module according to claim 1, further comprising:
a voltage detector interposed between the first housing case and the second housing case in the fixed state, the voltage detector outputting voltage information of the battery cells to outside.

### Claim 3 (depends on 2)

The battery module according to claim 2, wherein
the voltage detector includes
a base unit having a sheet-like shape interposed between the electrode terminals in the first battery cell group and the electrode terminals in the second battery cell group, the electrode terminals in the first battery cell group and the electrode terminals in the second battery cell group being connected facing each other, and
a voltage detection conductor provided on the base unit, the voltage detection conductor being connected to at least one of the electrode terminals, of the electrode terminals connected facing each other.

### Claim 4 (depends on 3)

The battery module according to claim 3, wherein
a plurality of the voltage detection conductors are provided on the base unit.