Battery Cell Reinforcing Member for Heat Conduction and Strength

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Solution Overview

Problem

Current battery technologies face challenges in improving energy density while ensuring effective heat conduction and structural strength, leading to potential thermal management issues and reduced performance.

Innovation Solution

A battery design that incorporates a reinforcing member thermally connected to the first wall of the battery cell, eliminating the need for internal beams and side plates, thereby enhancing space utilization and energy density while maintaining thermal conduction through a thermally conductive adhesive layer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If beams and side plates are added to ensure structural strength, then structural strength is improved, but space utilization deteriorates

Engineering Contradiction:
Improvestructural strengthVSAvoidspace utilization
Core Design Contradiction:
StrengthVSVolume of moving object

Solution Approach 1:

The reinforcing member integrates both structural support and thermal conduction functions into a single component. It is fixedly connected to the first wall to provide structural reinforcement while simultaneously being thermally conductively connected to conduct heat from the battery cell, eliminating the need for separate beams and side plates.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The reinforcing member serves multiple functions: it reinforces the structural strength of the battery cell, conducts heat away from the battery cell for thermal management, and maintains the integrity of the battery assembly without requiring additional structural components.

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

2Strength

If beams and side plates are added to ensure structural strength, then structural strength is improved, but energy density deteriorates

Engineering Contradiction:
Improvestructural strengthVSAvoidenergy density
Core Design Contradiction:
StrengthVSQuantity of substance

Solution Approach 1:

The reinforcing member combines structural support and thermal management functions in one component, eliminating the need for separate beams and side plates that would occupy valuable space inside the battery, thereby maintaining high energy density while ensuring structural strength.

Inventive Principle:
Principle #5Merging (Combining)

3Quantity of substance

If the middle part of the box is cleared of structures to improve space utilization, then energy density is improved, but thermal conduction deteriorates

Engineering Contradiction:
Improveenergy densityVSAvoidthermal conduction
Core Design Contradiction:
Quantity of substanceVSTemperature

Solution Approach 1:

The reinforcing member merges structural support and thermal conduction functions. It is positioned to provide structural reinforcement while being thermally conductively connected to the first wall, ensuring effective heat conduction without requiring additional beams or side plates in the middle of the box.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The reinforcing member acts as an intermediary for heat transfer between the battery cell and the surrounding environment. It is thermally conductively connected to the first wall and can conduct heat away from the battery cell effectively without occupying space in the middle of the box.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Quantity of substance

If internal beams are removed to improve space utilization, then energy density is improved, but structural strength deteriorates

Engineering Contradiction:
Improveenergy densityVSAvoidstructural strength
Core Design Contradiction:
Quantity of substanceVSStrength

Solution Approach 1:

The reinforcing member integrates structural support and thermal conduction functions. It is fixedly connected to the first wall to provide structural reinforcement, replacing the need for internal beams, while simultaneously conducting heat away from the battery cell.

Inventive Principle:
Principle #5Merging (Combining)

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 design improves energy density and ensures efficient thermal management, reducing the risk of thermal runaway and enhancing the safety and performance of the battery.

Implementation Method 1

thermally conductively connected to the first wall

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS20240405315A1Battery and electrical apparatus
Publication Date: 2024.12.05 CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
  • US20240405315A1 patent drawing
  • US20240405315A1 patent drawing
  • US20240405315A1 patent drawing

AI summary

A battery and an electrical apparatus are provided. The battery includes a box, a battery cell, and a reinforcing member. The box has an accommodating cavity, and the battery cell is accommodated in the accommodating cavity. The battery cell includes an electrode assembly and an electrode terminal, the electrode assembly being electrically connected to the electrode terminal. The battery cell includes a first wall, the first wall being a wall with the largest area of the battery cell. The reinforcing member is arranged opposite to the first wall, fixedly connected to the first wall, and thermally conductively connected to the first wall.