
The short-circuit tester adopts PID control to simulate the external short circuit of batteries, complying with UL1642, UN38.3, IEC62133, GB/T18287, GB/T 31241-2014 and other standards. It uses contactors as switching elements and thermal relays as protection devices; the tested battery circuit is short-circuited when the circuit breaker is closed, with a strong short-circuit current passing through the entire circuit.
The battery surface temperature, voltage and current signals detected by Hall elements are processed by data processing, and the software records the changes of battery voltage, current and surface temperature continuously.
The Battery Short Circuit Testing Machine must ensure that the total resistance of the entire circuit (including circuit breakers, wires and connectors) is (80±20)mΩ, and each circuit can withstand a peak short-circuit current of 500A.
Optional short-circuit stop mode: Short-circuit duration.
Battery Short Circuit Test Chamber Standards
· GB31241-2022 Safety Requirements for Lithium-Ion Batteries and Battery Packs for Portable Electronic Products
· GB/T36276-2018 Lithium-Ion Batteries for Electrical Energy Storage
· GB/T36972-2018 Lithium-Ion Storage Batteries for Electric Bicycles
· IEC62133-2012
· UL1642
· UN38.3
Temperature control battery short circuit test chamber Standard Requirement:
High Temperature External Short Circuit
Fully charge the battery according to the specified test method, connect the positive and negative terminals of the battery with a wire and ensure the total external resistance is (80±20)mΩ at the same time; place the battery in an environment of 57℃±4℃, and keep it for another 30min after the battery temperature reaches 57℃±4℃. The battery surface temperature can be monitored during the test. The test shall be terminated when one of the following conditions is met:The short-circuit duration reaches 24 hours.
Acceptance Criterion: The battery shall not catch fire or explode
Battery Internal Short Circuit Test Chamber Key Specification
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Model
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GT-I09
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Maximum testing voltage
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500V
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Dc response time
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≤5μs
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Maximum short circuit current
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0-1000A
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The device interior resistance
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80±20mΩ
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Control mode
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PID Control
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Storage shelf
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Load capacity ≥30Kg; 1 storage shelf, made of SUS201 stainless steel
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Inner chamber material
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SUS201 stainless steel, 1.2mm thick
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Outer chamber material
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The 1.5mm-thick cold-rolled steel plate is reinforced and features a powder-coated, baked-paint finish.
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Mechanical service life
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300,000 cycles
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Sealing strip
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Corrosion-resistant silica gel
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Temperature control
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Temperature range: RT+10℃~100℃
Temperature rise rate: 3℃/min
Temperature fluctuation: 0.5℃
Temperature uniformity: ±2℃
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Test stop condition
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Short-circuit duration
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Battery surface temperature
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Monitors temperature changes of battery surface during the test
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Control panel safety design
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The control panel is built-in ensuring that the touchscreen and buttons cannot be accidentally pressed or bumped by external objects or the user's body, making it safer
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Tempered glass viewing window
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A 300×300mm double-layer tempered glass viewing window with stainless steel explosion-proof grid installed on the test chamber door, allowing for a clear view of the test conditions inside the chamber
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Bottom design
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4 universal casters for easy moving, handling, positioning and fixing of the equipment
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Explosion-proof lighting design
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High-brightness explosion-proof LED light installed inside the door, illuminating the entire test space
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Current acquisition channel
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1 channel
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Current acquisition range
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0-500A DC
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Current acquisition accuracy
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±0.5%F.S
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Acquisition rate
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1 time/s
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Voltage acquisition channel
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1 channel
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Voltage acquisition range
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0~10V
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Voltage acquisition accuracy
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±0.2%FS
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Voltage acquisition rate
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1 time/s
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Temperature acquisition channel
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1 channel
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Temperature acquisition range
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-20~600℃
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Temperature acquisition accuracy
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±1℃
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Temperature acquisition rate
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1 time/s
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Hall Element for current signal acquisition
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Hall element is used to collect the current generated by the short-circuit system during short circuit, avoiding contact resistance and ensuring stable and accurate data transmission
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