Pouch Battery Pack Structure With Pressed Cell Cover Cooling
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Solution Overview
Problem
Existing battery packs face issues of increased weight and volume, decreased energy density, and complex assembly processes due to the use of box-shaped metal cases for battery modules, which hinder efficient packing and mounting of battery cells.
Innovation Solution
A battery pack design that accommodates pouch-type battery cells directly in a pack case, utilizing a heat sink and cell cover structure with support ribs or concave portions to enhance space efficiency, thermal conductivity, and simplify assembly, while using a thermal interface material for improved cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a battery pack for an electric vehicle is formed by providing a module including a battery cell group and a housing, and assembling a plurality of the modules, then the battery pack can be manufactured with modular architecture, but the connection between modules requires additional connection parts and connection processes increasing device complexity
Solution Approach 1:
The patent merges the connection functions into the housing structure itself. The housing includes a first connection part and a second connection part that directly connect adjacent modules without requiring separate connection components. This integration eliminates additional connection parts and simplifies the overall connection structure while maintaining modular architecture.
Solution Approach 2:
The housing serves multiple functions: it protects the battery cell group and simultaneously provides connection capabilities through the integrated connection parts. The first and second connection parts are built into the housing structure, allowing the housing to act as both a protective enclosure and a connection element, reducing the need for separate connection components.
2Reliability
If modules are connected using separate connection parts, then connection functionality is provided, but the number of parts and assembly processes increases manufacturing complexity
Solution Approach 1:
The connection functionality is merged into the housing structure. The first connection part and second connection part are integral to the housing design, allowing modules to be connected directly through the housing without requiring separate connection components or additional assembly steps.
Data Source
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AI summary
Disclosed are a battery pack and a vehicle including the same. A battery pack according to an embodiment of the present disclosure includes a plurality of pouch-type battery cells; a pack case accommodating the plurality of pouch-type battery cells in an internal space and provided with a heat sink; and a cell cover that at least partially surrounds and supports at least some of the pouch-type battery cells among the plurality of pouch-type battery cells in the internal space of the pack case, wherein the heat sink is configured in a structure for pressing the cell cover.