US 12,603,383 B2 · Traction battery pack venting systems with enclosure assembly integrated vent exhaust channels

Abstract

This disclosure details exemplary traction battery pack designs for use in electrified vehicles. An exemplary traction battery pack may include a venting system having one or more vent exhaust channels. The vent exhaust channels may be integrated with an enclosure assembly of the battery pack for purging battery vent byproducts from the battery pack during cell venting events. In some embodiments, the vent exhaust channels are coated with a thermal protective coating for reducing heat dissipation to surrounding components.

Claims20

Dependent claims

A traction battery pack, comprising:

an enclosure assembly that provides an outermost surface of the traction battery pack;
a battery array housed within the enclosure assembly and including a plurality of battery cells stacked side-by-side;
and
a vent system configured for routing and expelling battery vent byproducts vented by a battery cell of the plurality of battery cells of the battery array,
wherein the vent system includes a vent exhaust channel fixedly secured directly to a portion of the enclosure assembly.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

16/951,243Filed 18 Nov 2020

Published

US 2022/0158146 A119 May 2022

Granted

14 Apr 2026

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

H01M 50/249
Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders:…
H01M 50/358
Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages: external gas exhaust passages located on the battery…
H01M 50/30
Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells:…
H01M 50/383
Arrangements for facilitating escape of gases: flame arresting or ignition-preventing means

Traction battery pack venting systems with enclosure assembly integrated vent exhaust channels

Life of this patent

Traction battery pack venting systems with enclosure assembly integrated vent exhaust channels

Life of this patent

Abstract

Claims20