Battery Charge-Discharge Fixture for Real-Time Thickness and Temperature
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Solution Overview
Problem
Conventional charge-discharge apparatuses for rechargeable batteries face challenges in measuring battery cell thickness and temperature in real time, with manual thickness measurement being inconvenient and thermocouple wires being cumbersome for temperature measurement.
Innovation Solution
A charge-discharge apparatus with a base plate, elevating plate, distance-measuring part, and temperature-measuring part, including a thermocouple wire, to measure thickness and temperature of battery cells in real time, using a laser sensor for distance measurement and a thermocouple wire for temperature measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual thickness measurement is used by withdrawing battery cells from the charger-discharger, then measurement can be performed, but the convenience of measuring thickness is reduced and real-time thickness changes cannot be measured
Solution Approach 1:
The patent combines the thickness measurement function with the charger-discharger device by integrating a measurement plate that contacts the battery cell during charging. This merging eliminates the need to withdraw the battery cell for measurement, allowing continuous real-time thickness monitoring while maintaining ease of operation.
Solution Approach 2:
The charger-discharger device performs self-measurement of battery cell thickness through the integrated measurement plate that automatically contacts the battery cell during the charging process. This self-service capability eliminates the need for external manual measurement operations, providing both real-time data and operational convenience.
2Measurement precision
If a thermocouple (TC) wire is installed for temperature measurement, then temperature can be measured, but it is impossible to measure temperature by position and attaching the TC wire to the surface of the battery cell is cumbersome
Solution Approach 1:
The patent merges the temperature measurement function with the measurement plate by integrating a thermocouple into the plate structure. This allows the temperature sensor to be positioned precisely where needed (in contact with the battery cell) without requiring separate wire attachment operations, thus improving both measurement capability and ease of operation.
Solution Approach 2:
The measurement plate serves as an intermediary that facilitates temperature measurement by providing a built-in thermocouple contact point. This intermediary structure eliminates the need to directly attach TC wires to the battery cell surface, making the process less cumbersome while maintaining accurate temperature measurement capability.
3Measurement precision
If thickness measurement is performed by withdrawing battery cells, then measurement can be taken, but real-time evaluation of battery cell reliability and lifespan is hindered
Solution Approach 1:
The patent enables continuous thickness measurement during the charging process through the integrated measurement plate. This continuous monitoring provides real-time data on battery cell expansion, allowing immediate evaluation of reliability and lifespan without interruption or time loss associated with withdrawing and reinserting cells.
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 real-time evaluation of battery cell reliability and lifespan by simultaneously measuring thickness and temperature changes during charging and discharging processes.
Implementation Method 1
The distance-measuring part may include a laser sensor between the elevating plate and the base plate.
Implementation Method 2
The temperature-measuring part may include a thermocouple (TC) wire inserted into the lower surface of the elevating plate.
Data Source
AI summary
A charge-discharge apparatus for a rechargeable battery is disclosed. A charge-discharge apparatus for a rechargeable battery includes a base plate configured to have a battery cell affixed thereon, a charger-discharger on the base plate, and configured to charge the battery cell, a support part protruding from one side of the base plate, an elevating plate at the support part, and configured raise and lower, a distance-measuring part configured to measure a separation distance between the base plate and the elevating plate contacting the battery cell, a temperature-measuring part at a lower surface of the elevating plate, and configured to measure a temperature of the battery cell, and a display part configured to display the separation distance and the temperature.