Battery Cell Analyzer Using Heated Resistor Load Measurement
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Solution Overview
Problem
Current battery analysis devices are time-consuming, inefficient, and often degrade battery life by using charge and discharge methods that expose batteries to heat for extended periods, failing to provide near-real-time health information and lacking the ability to accurately measure individual cell health in battery packs.
Innovation Solution
A portable battery analyzer device that uses intelligent analytics and hardware to test the amp load of each cell in a battery pack by heating a resistor and calculating voltage using Ohm's law, providing near-real-time health information without degrading battery life, and allowing for the replacement of individual cells rather than the entire pack.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If charge and discharge method is used to measure battery life, then battery health can be assessed, but testing time becomes several hours and batteries are exposed to heat for extended periods
Solution Approach 1:
The patent changes the measurement parameters from traditional charge/discharge cycles to voltage drop measurement under controlled load conditions. By applying a known load and measuring the immediate voltage response, the system achieves battery health assessment in seconds rather than hours, directly resolving the time consumption contradiction while maintaining measurement accuracy through calibrated measurements
Solution Approach 2:
The patent replaces the mechanical/electrical charge-discharge process with an electrical measurement process. Instead of physically charging and discharging the battery over hours, the system uses electrical load application and voltage measurement to infer battery health, dramatically reducing testing time while eliminating prolonged heat exposure
2Measurement precision
If charge and discharge method is used, then battery health can be measured, but batteries are exposed to heat for extended periods which lessens battery life
Solution Approach 1:
The patent substitutes the heat-generating charge/discharge process with a cold electrical measurement process. By applying a controlled load and measuring voltage response without prolonged energy transfer, the system eliminates harmful heat exposure while maintaining the ability to assess battery health through electrical characteristics
Solution Approach 2:
The patent skips the lengthy charge/discharge cycles that generate heat by directly measuring battery response under load. The measurement is completed in seconds before significant heat can be generated, effectively eliminating the harmful thermal effect while快速获取 battery health information
3Measurement precision
If traditional battery analyzers are used, then battery analysis can be performed, but the devices are stationary and mounted on walls creating fixed stations
Solution Approach 1:
The patent replaces the stationary wall-mounted structure with a portable handheld device. The measurement system is miniaturized and battery-powered, allowing operators to move freely and test batteries at their location rather than requiring battery movement to a fixed station, significantly improving ease of operation while maintaining analysis capability
4Measurement precision
If charge and discharge methods are used, then battery capacity can be measured, but the process takes several hours per battery
Solution Approach 1:
The patent changes the measurement approach from capacity-based charge/discharge testing to voltage-response-based assessment. By measuring the battery's voltage response to a controlled load, the system infers capacity and health in seconds, increasing testing throughput from a few batteries per day to many dozens while maintaining measurement precision through calibrated algorithms
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 solution enables fast, accurate, and safe measurement of individual battery cell health, reducing testing time to less than five seconds per cell and eliminating overheating, while providing near-real-time data on voltage, resistance, and capacity, allowing for optimal battery pack performance and minimizing waste by pinpointing failing cells.
Implementation Method 1
a power supply that heats the resistor prior to taking a measurement of the battery cell
Implementation Method 2
The amp reading and the resistance of the resistor are used to calculate a voltage reading of the battery cell using Omh's law (V=I×R)
Data Source
AI summary
A battery analyzer device and its method of use are described. The device has a resistor electrically coupled between a first probe and a second probe. The device also has a power supply configured to heat the resistor. An intelligent analytics software is programmed to (i) heath the resistor, (ii) measure an amperage load across the first probe and the second probe, and (iii) calculate a voltage based on the measured amperage load and a resistance of the resistor in a heated state. The intelligent analytics software is also programmed to display a battery health report on the device's interface.