Battery Exterior Insulation Inspection Using Voltage Drop Detection
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Solution Overview
Problem
Existing methods for inspecting battery insulation are inefficient and unreliable, particularly in high-speed mass production environments, leading to potential defects such as explosions and fires due to exposed conductor layers in secondary batteries.
Innovation Solution
A system and method using a current conductive member to contact the battery exterior, apply a voltage, and measure voltage changes to determine insulation integrity, utilizing a controller to assess insulation based on voltage maintenance or drop, with a conductive sponge material for comprehensive contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing inspection methods are used, then inspection can be performed, but inspection speed and accuracy are insufficient for high-speed mass production
Solution Approach 1:
The patent replaces traditional mechanical contact-based insulation inspection methods with an electrical field-based detection system. A current conductive member applies voltage to the battery exterior, and voltage changes are measured to detect insulation defects, enabling faster and more accurate inspection suitable for high-speed mass production
Solution Approach 2:
The patent introduces a current conductive member as an intermediary between the inspection system and the battery exterior. This conductor applies voltage and facilitates measurement of voltage changes, enabling indirect detection of insulation integrity without direct contact with the battery interior
2Reliability
If manual inspection methods are used, then inspection can be performed, but manual errors occur and additional chemical treatments are required
Solution Approach 1:
The patent enables the battery exterior material to self-reveal insulation defects through voltage change measurements when contacted by the current conductive member. The inspection system automatically detects insulation integrity based on electrical properties, eliminating manual inspection errors and the need for additional chemical treatments
Solution Approach 2:
The patent replaces complex manual inspection procedures and chemical treatment processes with a simplified electrical field-based detection system that automatically identifies insulation defects through voltage measurements
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 quick and accurate inspection of battery insulation, minimizing defects by ensuring conductor layers are covered, suitable for high-speed mass production without manual errors or additional chemical treatments.
Implementation Method 1
an inspection unit to contact a current conductive member with an exterior material of the battery disposed in the station unit, apply a voltage to the current conductive member, and measure a change in a voltage
Data Source
AI summary
The present disclosure relates to a system for inspecting battery and an inspecting method of battery, wherein the system for inspecting battery may comprise a station unit where a battery to be inspected is disposed; and an inspection unit configured to contact a current conductive member with an exterior material of the battery disposed in the station unit, apply a voltage to the current conductive member, and measure a change in the voltage.