# US 10,312,560 B2 · Battery pack

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- Number: US 10,312,560 B2
- Document ID: US10312560B2
- Status: Granted
- Kind: B2
- Application number: 14/616,556
- Filed: 2015-02-06
- Published: 2015-08-13
- Granted: 2019-06-04
- Earliest claimed: 2014-02-10
- Assignees: Samsung SDI Co., Ltd.
- Applicants: Samsung SDI Co., Ltd.
- Inventors: Jang-Gun Ahn
- Web page: https://patentgrep.com/patent/US10312560B2

## CPC

- H01M 10/6557: arranged between the cells
- H01M 10/613: Cooling or keeping cold
- H01M 10/625: Vehicles
- H01M 10/6566: Means within the gas flow to guide the flow around one or more cells, e.g. manifolds, baffles or other barriers (H01M10/6565 takes precedence)
- H01M 10/6568: characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
- H01M 50/209: adapted for prismatic or rectangular cells (H01M50/216 takes precedence)
- H01M 50/289: characterised by spacing elements or positioning means within frames, racks or packs (spacing elements inside cells other than separators, membranes or diaphragms H01M50/471)
- H01M 10/647: Prismatic or flat cells, e.g. pouch cells
- H01M 10/652: characterised by gradients (for achieving a desired temperature gradient H01M10/617)
- 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 battery pack includes at least one battery module and a housing. The at least one battery module includes a plurality of battery cells arranged along one direction and barriers respectively positioned between adjacent ones of the plurality of battery cells, the plurality of battery cells being electrically coupled to each other. The housing accommodates the battery module therein and has inlets at opposite edges of a first end of the housing at one end of the battery module, and an outlet at a lower portion of a second end of the housing at an opposite end of the battery module. Each barrier includes a base portion facing an adjacent one of the battery cells, an upper spacer at at least one top corner of the base portion, and a lower spacer at at least one bottom corner of the base portion. Sides and a bottom of the battery module are spaced from the housing.

## Claims

### Claim 1

A battery pack comprising:
a plurality of battery modules, each of the battery modules comprising a plurality of battery cells arranged along a first direction and barriers positioned between adjacent ones of the plurality of battery cells, the plurality of battery cells being electrically coupled to each other;
a housing accommodating the battery modules therein, the housing having inlets at opposite edges of a first end of the housing at a first end of the battery modules, and an outlet at a lower portion of a second end of the housing at a second end of the battery modules, the first and second ends of the housing being opposite each other in the first direction, the first and second ends of the battery modules being opposite each other in the first direction; and
first and second end plates respectively at the first and second ends of the battery modules and between the battery modules and the housing,
wherein each barrier comprises a base portion facing an adjacent one of the battery cells, an upper spacer at at least one top corner of the base portion, and a lower spacer at at least one bottom corner of the base portion,
wherein sides and a bottom of the battery modules are spaced from the housing,
wherein the first end plate has a pair of side groove portions at positions respectively aligned with the inlets in the first end of the housing in the first direction and extending from a first surface of the first end plate facing the first end of the housing to a second surface of the first end plate facing the second end of the housing,
wherein the second end plate has a bottom groove portion at a position aligned with the outlet in the second end of the housing in the first direction and extending from a first surface of the second end plate facing the first end of the housing to a second surface of the second end plate facing the second end of the housing, and
wherein one side surface of a first battery module of the battery modules faces a side surface of a second battery module of the battery modules, and a blocking plate is between the first and second battery modules, the blocking plate being configured to block movement of a refrigerant between the first and second battery modules.

### Claim 2 (depends on 1)

The battery pack of claim 1, wherein the base portion of the barrier comprises at least one rib protruded from the base portion.

### Claim 3 (depends on 2)

The battery pack of claim 2, wherein the at least one rib is curved from one edge of the base portion toward a bottom edge of the base portion.

### Claim 4 (depends on 3)

The battery pack of claim 3, wherein the at least one rib comprises a plurality of ribs, and the ribs are spaced from each other at an interval.

### Claim 5 (depends on 4)

The battery pack of claim 4, wherein the interval between the ribs gradually increases as the ribs approach a top of the base portion.

### Claim 6 (depends on 2)

The battery pack of claim 2, wherein the at least one rib comprises a plurality of ribs, and the ribs are dots.

### Claim 7 (depends on 1)

The battery pack of claim 1, wherein the housing and the barriers are configured to accommodate a refrigerant flowing into the housing through the inlets of the housing, flowing from the side of each battery cell to the bottom of each battery cell, and being exhausted to an outside of the housing through the outlet of the housing.

### Claim 8 (depends on 1)

The battery pack of claim 1, wherein the upper and lower spacers of the barrier have a thickness such that the upper spacer contacts a side surface and a top surface of both battery cells that are adjacent to the respective barrier, and the lower spacer contacts the side surface and a bottom surface of both battery cells that are adjacent to the respective barrier.

### Claim 9 (depends on 1)

The battery pack of claim 1, wherein the blocking plate comprises upper and lower support portions respectively at a top and bottom of the blocking plate.
