US12573677USUSPTO Grant XML

Battery module assembly

A battery module assembly including a cell stack in which a plurality of battery cells are stacked and formed in a horizontal direction, a pair of end plates arranged on both a first side and a second side of the cell stack in the horizontal direction, and a sensor device that is coupled to at least one end plate of the pair of end plates and measures a temperature of the cell stack, wherein the sensor device includes an upper sensor member that is disposed above the at least one end plate and measures a temperature of an upper side of the cell stack, and a lower sensor member that is disposed below the at least one end plate and measures a temperature of a lower side of the cell stack.

Patent

Brief

Patent brief

Problem

How can battery fires and thermal runaway in EV packs be prevented?

Novelty

The front-page text suggests a specialized implementation detail worth closer review.

Uses

Patent review

Assignee

Hyundai Mobis Co., Ltd.

Published

Mar 10, 2026

Inventors

Jae Young Jang, Yong Jung Kim

Domain

Mobility / storage

Plain-English summary

Problem

How can battery fires and thermal runaway in EV packs be prevented?

Solution

battery module assembly including a cell stack in which a plurality of battery cells are stacked and formed in a horizontal direction, a pair of end plates arranged on both a first side and a second side of the cell stack in the horizontal direction, and a sensor device that is coupled to at least one end plate of the pair of end plates and measures a temperature of the cell stack, wherein the sensor device includes an upper sensor member that is disposed above the at least one end plate and measures a temperature of an upper side of the cell stack, and a lower sensor member that is disposed below the at least one end plate and measures a temperature of a lower side of the cell stack.

Key novelty

The front-page text suggests a specialized implementation detail worth closer review.

Applications

Patent review

Relevant search intents

3c0f28b3ba0f

Claims preview

1 . A battery module assembly, comprising: a cell stack in which a plurality of battery cells are stacked and formed in a horizontal direction; a pair of end plates arranged on a first side and a second side of the cell stack in the horizontal direction; and a sensor device coupled to at least one of the pair of end plates and configured to measure a temperature of the cell stack, wherein the sensor device comprises: an upper sensor member disposed on an upper part of the at least one end plate and configured to measure a temperature of an upper side of the cell stack; and a lower sensor member disposed on a lower part of the at least one end plate and configured to measure a temperature of a lower side of the cell stack. 2 . The battery module assembly of claim 1 , wherein the at least one end plate comprises: an inner plate member in which an upper hole into which the upper sensor member is inserted and a lower hole into which the lower sensor member is inserted are formed and which is in contact with the cell stack; and an outer plate member coupled to an outer surface of the inner plate member. 3 . The battery module assembly of claim 2 , wherein the sensor device further comprises a substrate member that extends in a vertical direction and is configured to connect the upper sensor member and the lower sensor member to each other.

Battery module assembly

Plain-English summary

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