Battery Module Resin Composition for Smooth Injection and Insulation
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Solution Overview
Problem
The existing resin compositions used for fixing battery cells in battery modules face challenges with injection processability, leading to potential equipment overload and inadequate curing, which affects the adhesive and insulating properties of the resin.
Innovation Solution
A resin composition with specific load value and load change rate ranges is developed, comprising a main resin and a curing agent, ensuring optimal injection and curing characteristics, including a two-component urethane-based system with fillers for improved adhesion and heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If existing resin composition is used for fixing battery cells, then adhesive function is provided, but injection processability is poor and equipment overload occurs
Solution Approach 1:
The patent modifies the resin composition by controlling the molecular weight distribution and incorporating specific additives to reduce viscosity and improve flow characteristics. This allows the resin to be injected smoothly into battery modules without overloading injection equipment, while maintaining adequate adhesive properties after curing.
Solution Approach 2:
The patent uses a composite resin system combining multiple polymer components with different molecular weights and properties. This composite approach balances injection processability (achieved through lower molecular weight components) with adhesive performance (provided by higher molecular weight components), resolving the contradiction between ease of manufacture and equipment reliability.
2Reliability
If existing resin composition is used, then adhesive function is provided, but curing is inadequate affecting insulating properties
Solution Approach 1:
The patent incorporates curing catalysts and activates the curing process before final assembly is complete. This preliminary curing action ensures that the resin achieves adequate cross-linking and insulating properties before the battery module undergoes subsequent processing steps, preventing inadequate curing issues.
Solution Approach 2:
The patent adjusts curing parameters including temperature profiles, catalyst concentrations, and curing time to ensure complete curing. By optimizing these parameters, the resin achieves full cross-linking density required for adequate insulating properties while maintaining manufacturing efficiency.
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
The resin composition achieves excellent injection processability, prevents equipment overload, and provides enhanced insulation, heat dissipation, and adhesive properties after curing, ensuring the stability and performance of battery modules.
Implementation Method 1
a resin composition, a battery module comprising a cured product of the resin composition
Implementation Method 2
enhanced insulation, heat dissipation, and adhesive properties after curing
Data Source
AI summary
The present application relates to a resin composition, a battery module comprising a cured product of the resin composition, a manufacturing method thereof and a battery pack. According to one example of the present application, injection processability of the resin composition can be improved, overloading of injection equipment can be prevented, and the battery module having excellent insulation properties can be provided.