Power Storage Thermal Simulation via Short-Circuit Current
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Solution Overview
Problem
Technicians without expertise in batteries face challenges in simulating the thermal safety of power storage devices due to complex interrelated physical phenomena such as chemical reactions, heat transfer, and fluid dynamics, which are often unknown, making it difficult to accurately model and predict thermal safety outcomes.
Innovation Solution
A simulation method and device that receive simulation conditions related to power storage devices, calculate short-circuit currents, and simulate thermal phenomena from the device to the outside, including exothermic reactions and gas generation, allowing for the visualization of thermal behavior even for users unfamiliar with battery theory.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If detailed physical phenomena models (chemical reactions, heat transfer, fluid dynamics) are used to simulate thermal safety, then simulation accuracy is improved, but device complexity and ease of operation deteriorate
Solution Approach 1:
The patent segments the complex thermal safety simulation into two distinct parts: a detailed simulation engine that handles complex physical phenomena (chemical reactions, heat transfer, fluid dynamics), and a simplified user interface that presents easy-to-use input parameters. This segmentation allows the system to maintain high simulation accuracy while reducing the operational complexity for users.
Solution Approach 2:
The patent introduces an intermediary layer (the simulation system itself) that translates simple user inputs into complex simulation parameters. The system automatically converts user-friendly inputs into the detailed physical phenomena models, acting as a mediator between the user and the complex simulation engine, thereby improving ease of operation without sacrificing accuracy.
2Measurement precision
If detailed physical phenomena models (chemical reactions, heat transfer, fluid dynamics) are used to simulate thermal safety, then simulation accuracy is improved, but ease of operation deteriorates
Solution Approach 1:
The patent creates a simplified copy or representation of the complex simulation system through an intuitive user interface. Instead of requiring users to directly manipulate complex physical models, the system provides simplified input parameters that copy or represent the essential aspects of thermal safety simulation, making it easy for non-experts to operate while maintaining accurate simulation results.
Solution Approach 2:
The simulation system serves as an intermediary that automatically handles the translation from simple user inputs to complex simulation parameters. This intermediary function shields users from the complexity of physical phenomena models while ensuring accurate simulation execution, thereby improving ease of operation without compromising simulation accuracy.
3Measurement precision
If comprehensive simulation parameters are used to model thermal phenomena, then simulation accuracy is improved, but ease of operation deteriorates due to unknown mechanisms and physical property values
Solution Approach 1:
The patent implements a self-service mechanism where the simulation system automatically determines and sets the complex simulation parameters based on simple user inputs. The system independently handles the selection of physical phenomena models, chemical reaction parameters, heat transfer coefficients, and fluid dynamics properties, eliminating the need for users to have expert knowledge while maintaining high simulation accuracy.
Solution Approach 2:
The simulation system acts as an intermediary that automatically bridges the gap between simple user inputs and comprehensive simulation parameters. It autonomously fills in unknown mechanisms and physical property values by selecting appropriate models and parameters, thereby improving ease of operation without sacrificing thermal safety prediction accuracy.
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
Enables technicians to easily simulate thermal phenomena of power storage devices, providing accurate results on heat generation rates and gas generation, thereby enhancing safety design in electric vehicles and renewable energy systems.
Implementation Method 1
calculates short-circuit current based on the received simulation condition to simulate a thermal phenomenon from the power storage device to the outside
Implementation Method 2
In an event related to safety of the power storage device, a plurality of physical phenomena such as chemical reaction, heat transfer, current, electrochemistry, and fluid dynamics are related to each other
Data Source
AI summary
This simulation method includes accepting a simulation condition relating to an electricity storage device; and calculating a short circuit current on the basis of the accepted simulation condition to simulate a thermal phenomenon from the electricity storage device to the outside.