Nondestructive
rechargeable battery
inspection systems
The world’s first technology for nondestructive analysis of rechargeable battery failures
While the demand for lithium-ion storage batteries is on a rise because of their material properties, defects in such batteries can cause heat generation and ignition. The “Storage Battery Nondestructive Imaging Diagnostic System” developed by IGS can measure the electric current-density distribution inside storage batteries, thus enabling nondestructive failure analysis and quality control.
Direct Assessment of Electric Current-Density Distribution Inside Batteries
Our system can directly measure the electric current-density distribution within a battery, which is crucial for its operation and longevity. This capability allows us to accurately identify the root cause of any failures, enhancing both diagnostic precision and battery reliability.
Nondestructive Inspection of Battery Internal Current
Our technology allows for the assessment of the internal electric current status without damaging the battery, ensuring that it continues to operate with the same quality and performance as it had before testing.
Detection of Minute Short Circuits in Shipped Batteries
Our technology can identify minor short circuits in batteries that have already been deemed functional. This capability allows us to detect slight spatial irregularities in electric current density, even before a short circuit occurs, ensuring optimal battery performance and reliability.
Challenges with Conventional Rechargeable Battery Testing
Traditional methods for inspecting rechargeable batteries have proven inadequate, leading to numerous ignition incidents
Pre-shipment inspections often rely on voltage drop tests (aging tests) after charging. Despite passing these tests, many batteries have still experienced explosions, highlighting a growing social concern in recent years.
Innovative Solutions
The IGS Approach
Using a proprietary calculation theory, IGS visualizes density distribution and short-circuit locations within storage batteries
Our nondestructive imaging diagnostic system measures the magnetic field generated by electric current using an ultra-sensitive magnetic sensor, identifying potential failure points. Since the system applies only alternating current, evaluations are performed without damaging the battery.
The nondestructive storage battery imaging diagnostic system automatically measures the battery's magnetic field, calculating electric current using software based on inverse analysis theory
The data is visualized, highlighting areas with irregular electric concentration in different colors, enabling easy identification of potential faults.
Advantages of IGS Nondestructive Battery Testing
Our system visualizes the electric current path and density distribution within the battery, identifies potential design risks, and assesses safety for battery recycling.
Conventional testing
Self-discharge quantity
Impossible
Yes
IGS storage battery image diagnostic system
Current density spatial distribution
Possible
No
Self-discharge quantity
Current density spatial distribution
Impossible
Possible
Yes
No
Related Articles
“Local electric current reconstruction theory for non-destructive inspection inside battery cell using magnetic field measurement”
Kenjiro Kimura, Yuki Mima and Noriaki Kimura
Subsurface Imaging Science & Technology. 1 [16](2017)1, October 2017
