Battery Cell Thermal Management Layout for Higher Energy Density

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Solution Overview

Problem

Existing battery technologies face challenges in improving energy density while effectively managing thermal conditions, which are crucial for maintaining performance and safety.

Innovation Solution

The integration of a thermal management component connected to the largest surface area wall of each battery cell, where the component's size is optimized to ensure efficient thermal management without compromising space utilization, thereby enhancing energy density.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If thermal management components are added to manage battery temperature, then thermal management performance is improved, but space utilization rate decreases

Engineering Contradiction:
Improvethermal management performanceVSAvoidspace utilization rate
Core Design Contradiction:
TemperatureVSVolume of moving object

Solution Approach 1:

The patent combines the thermal management component with the battery cell structure by integrating it with the largest surface area wall of the battery cell. This merging approach allows the thermal management function to be performed without adding separate independent components, thereby improving thermal management performance while minimizing the impact on space utilization rate.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The thermal management component is designed to serve multiple functions: it acts as both a thermal management device and a structural element of the battery cell. By making the thermal management component part of the battery cell's wall structure, it simultaneously provides structural support and thermal management, thus improving space utilization while maintaining effective temperature control.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Temperature

If the size of thermal management component is increased to improve thermal management, then temperature control is improved, but energy density decreases

Engineering Contradiction:
Improvetemperature controlVSAvoidenergy density
Core Design Contradiction:
TemperatureVSQuantity of substance

Solution Approach 1:

The patent applies local quality by positioning the thermal management component specifically on the largest surface area wall of the battery cell, where thermal exchange is most critical. The component's size and placement are optimized locally rather than uniformly across the entire battery, allowing effective temperature control while minimizing the overall volume occupied, thus preserving energy density.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The thermal management component is designed with a size that is sufficient (but not excessive) for effective thermal management. By applying partial action - using just enough thermal management capacity needed for safe operation - the patent avoids over-design that would consume excessive space and reduce energy density, while still achieving the required temperature control performance.

Inventive Principle:
Principle #16Partial or excessive action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This solution effectively improves the energy density of batteries by optimizing space utilization and ensures reliable thermal management, preventing overheating and ensuring safe operation, especially during fast charging.

Implementation Method 1

a thermal management component extending along the first direction and being connected to a first wall of each battery cell among the plurality of battery cells, the thermal management component being configured to adjust a temperature of the battery cell

Methodology Applied
Scientific EffectHeat exchange: Heat Exchanger

Data Source

PatentUS12218330B2Battery, power consumption device, and method and device for producing battery
Publication Date: 2025.02.04 CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
  • US12218330B2 patent drawing
  • US12218330B2 patent drawing
  • US12218330B2 patent drawing

AI summary

Provided are a battery, a power consumption device, a method and a device for producing a battery. The battery includes: a plurality of battery cells arranged along a first direction; a thermal management component extending along the first direction and being connected to a first wall of each battery cell among the plurality of battery cells, the first wall being a wall with a largest surface area of the battery cell, and the thermal management component being configured to adjust a temperature of the battery cell; and where in the second direction, a size H1 of the thermal management component and a size H2 of the first wall satisfy: 0.1≤H1/H2≤2, and the second direction is perpendicular to the first direction and parallel to the first wall.