# US 2024/0194979 A1 · Battery Module and Method of Assembly Thereof

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- Number: US 2024/0194979 A1
- Document ID: US20240194979A1
- Status: Published application
- Kind: A1
- Application number: 18/233,642
- Filed: 2023-08-14
- Published: 2024-06-13
- Earliest claimed: 2022-12-08
- Applicants: Supernal, LLC
- Inventors: Kameron Buckhout; Kevin Lewis; Loni Cariaga
- Web page: https://patentgrep.com/patent/US20240194979A1

## CPC

- H01M 10/658: by thermal insulation or shielding
- H01M 10/613: Cooling or keeping cold
- H01M 10/625: Vehicles
- H01M 10/647: Prismatic or flat cells, e.g. pouch cells
- H01M 10/6554: Rods or plates
- H01M 10/6556: Solid parts with flow channel passages or pipes for heat exchange (closed pipes H01M10/6552)
- H01M 50/105: Pouches or flexible bags
- H01M 50/211: adapted for pouch cells
- H01M 50/291: characterised by their shape
- H01M 50/502: Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M 50/507: comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
- 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 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY

## Abstract

An example battery module includes: a housing; a cell stack assembly mounted within the housing and comprising a plurality of cell stacks, each cell stack comprising a plurality of cells separated by respective thermal pads, wherein cell stacks of the plurality of cell stacks are separated by respective thermal barrier plates, wherein each cell of the plurality of cells comprises one or more cell tabs; a first compression plate disposed at a first end of the cell stack assembly; a second compression plate disposed at a second end of the cell stack assembly, such that the cell stack assembly is interposed and compressed between the first compression plate and the second compression plate; and a cell tab divider plate mounted to the cell stack assembly, wherein the cell tab divider plate comprises a plurality of slits that accommodate the one or more cell tabs of each cell therethrough.

## Claims

### Claim 1

A battery module comprising:
a housing;
a cell stack assembly mounted within the housing and comprising a plurality of cell stacks, each cell stack comprising a plurality of cells separated by respective thermal pads, wherein cell stacks of the plurality of cell stacks are separated by respective thermal barrier plates, wherein each cell of the plurality of cells comprises one or more cell tabs;
a first compression plate disposed at a first end of the cell stack assembly;
a second compression plate disposed at a second end of the cell stack assembly, opposite the first end, such that the cell stack assembly is interposed and compressed between the first compression plate and the second compression plate; and
a cell tab divider plate mounted to the cell stack assembly, wherein the cell tab divider plate comprises a plurality of slits that accommodate the one or more cell tabs of each cell therethrough.

### Claim 2 (depends on 1)

The battery module of claim 1, wherein the housing comprises:
a base;
a first side plate at a first end of the base; and
a second side plate at a second end of the base, wherein the cell stack assembly is mounted within the housing and interposed between the first side plate and the second side plate.

### Claim 3 (depends on 2)

The battery module of claim 2, further comprising:
a coldplate mounted within the housing, between the cell stack assembly and the base of the housing, wherein the coldplate comprises a plurality of channels formed therein to allow coolant to flow therethrough.

### Claim 4 (depends on 3)

The battery module of claim 3, wherein the coldplate comprises:
a first port configured to receive coolant; and
a second port for discharging the coolant.

### Claim 5 (depends on 3)

The battery module of claim 3, wherein the coldplate is mounted to the first compression plate and the second compression plate.

### Claim 6 (depends on 1)

The battery module of claim 1, further comprising:
a bus bar assembly mounted to the cell tab divider plate such that the bus bar assembly contacts the one or more cell tabs of each cell.

### Claim 7 (depends on 6)

The battery module of claim 6, wherein the one or more cell tabs comprise a positive tab and a negative tab protruding through respective slits of the cell tab divider plate, wherein the bus bar assembly comprises a positive bus bar contacting the positive tab and a negative bus bar contacting the negative tab.

### Claim 8 (depends on 7)

The battery module of claim 7, wherein the cell tab divider plate comprises one or more longitudinal ribs configured to separate respective positive tabs of the plurality of cells from respective negative tabs thereof.

### Claim 9 (depends on 6)

The battery module of claim 6, wherein the bus bar assembly is configured as a voltage sensor.

### Claim 10 (depends on 1)

The battery module of claim 1, wherein the respective thermal pads separating the plurality of cells of each cell stack comprise silicon foam pads.

### Claim 11 (depends on 1)

The battery module of claim 1, wherein the cell tab divider plate comprises respective lateral ribs that separate the plurality of cell stacks from each other.

### Claim 12 (depends on 11)

The battery module of claim 11, wherein plurality of slits are interposed between two respective lateral ribs.

### Claim 13 (depends on 1)

The battery module of claim 1, wherein respective cells of the plurality of cells are configured as pouch cells, each pouch cell having a cell body that is configured as a flexible, rectangular-shaped polymer or metal pouch.

### Claim 14 (depends on 1)

The battery module of claim 1, wherein the plurality of cells separated by the respective thermal pads comprise:
pairs of interfacing cells separated from each other via the respective thermal pads.

### Claim 15

A method for assembling a battery module, the method comprising:
mounting a plurality of cell stacks separated from each other by respective thermal barrier plates to a first compression plate, wherein each cell stack of the plurality of cell stacks comprises a plurality of cells separated by respective thermal pads, and wherein each cell of the plurality of cells comprises one or more cell tabs;
mounting a second compression plate to the plurality of cell stacks, opposite the first compression plate;
mounting a cell tab divider plate to the plurality of cell stacks, the first compression plate, and the second compression plate, wherein the cell tab divider plate comprises a plurality of slits that accommodate the one or more cell tabs of each cell therethrough; and
positioning the plurality of cell stacks interposed between the first compression plate and the second compression plate with the cell tab divider plate mounted thereto within a housing.

### Claim 16 (depends on 15)

The method of claim 15, wherein mounting the plurality of cell stacks separated from each other by respective thermal barrier plates to the first compression plate comprises:
mounting a cell stack to a first compression plate;
mounting a thermal barrier plate to the cell stack, opposite the first compression plate; and
sequentially mounting respective cell stacks separated by respective thermal barrier plates to the thermal barrier plate.

### Claim 17 (depends on 15)

The method of claim 15, further comprising:
forming each cell stack of the plurality of cell stacks, wherein each cell stack comprises pairs of interfacing cells separated from each other via the respective thermal pads.

### Claim 18 (depends on 15)

The method of claim 15, further comprising:
mounting a coldplate within the housing between the plurality of cell stacks and a base of the housing, wherein the coldplate comprises a plurality of channels formed therein to allow coolant to flow therethrough.

### Claim 19 (depends on 15)

The method of claim 15, further comprising:
mounting a bus bar assembly to the cell tab divider plate such that the bus bar assembly contacts the one or more cell tabs of each cell.

### Claim 20 (depends on 19)

The method of claim 19, wherein the one or more cell tabs comprise a positive tab and a negative tab protruding through respective slits of the cell tab divider plate, wherein the bus bar assembly comprises a positive bus bar and a negative bus bar, and wherein mounting the bus bar assembly to the cell tab divider plate comprises:
mounting the bus bar assembly such that the positive bus bar contacts the positive tab, and the negative bus bar contacts the negative tab.
