The Large Battery Adiabatic Calorimeter has a special test mode that complies with the "adiabatic temperature rise characteristics" experimental standard of GB/T 36276-2023 "Lithium-ion Batteries for Power Energy Storage". It is an adiabatic calorimeter for studying large battery cells and small modules with a long side of 100mm~600mm. It can realize battery thermal runaway test, battery gas production test, battery charge and discharge heat production test, battery specific heat capacity test, and accurately obtain lithium battery charge and discharge heat production and specific heat capacity, thermal runaway starting temperature, maximum thermal runaway rate, adiabatic temperature rise characteristics, battery gas production and gas production rate and other parameters. The instrument can provide data support for the safety performance evaluation of lithium batteries and battery modules; and provide an evaluation basis for the thermal management system of power batteries.
The instrument has the functions of adiabatic thermal runaway, heating wire auxiliary heating, GB/T36276 adiabatic temperature rise test, gas collection and pressure test, thermal, electrical, mechanical abuse, specific heat capacity test, charge and discharge heat generation test, multi-point temperature measurement, video monitoring, etc.
This standard is an international general standard for laboratory quality management systems, covering requirements such as equipment calibration and test method verification. The test items of GB/T 36276-2023 (such as electrical performance and environmental adaptability tests) must be performed in laboratories that comply with ISO/IEC 17025 to ensure the accuracy and traceability of the results .
Features
Accurate: The self-heating detection sensitivity is much better than the standard detection threshold of 0.02℃/min, with high insulation performance and small wall-sample temperature difference
High efficiency: innovative heating wire auxiliary heating solution, experimental efficiency can be increased by up to 5 times
Safety: The furnace body is equipped with bursting discs and spring locks, and comes standard with an explosion-proof box. Double protection ensures the safety of the experimenters and the device
Technical Parameters
| Model | BAC |
| Effective size of insulation cavity | Diameter 420mm, depth 520mm |
| Self-heating detection sensitivity | Better than 0.02 ℃ /min |
| Constant temperature wall sample temperature difference | ≤ 0.5 ℃ |
| Temperature control range | RT~300 ℃ |
| Temperature tracking rate | 0.02~13 ℃ /min |
| Sealed test tank working pressurescope | 0~2MPa |
| Maximum acupuncture stroke | Itinerary software can be set |
| Charge and discharge electrode column overcurrent capacity | -500A ~ 500A |
Standards
GB/T 36276-2023 "Lithium-ion batteries for power energy storage"
UL 9540A
ASTM E1981-98(2012)
SN/T 3078.1-2012 Guidelines for the evaluation of thermal stability of chemicals Part 1: Accelerating rate calorimeter method
USABC SAND99-0497, July 1999: 3.2 Thermal Stability Tests
SAE J2464-R2009: 4.4.2 Thermal Stability Tests
Freedom CAR SAND 2005-3123: 4.1 Thermal stability
UL 1973
GB 38031-2020 Safety requirements for power batteries for electric vehiclesInternational Electrotechnical Commission (IEC) Standards
IEC 62619:2022 Safety requirements for industrial secondary lithium batteries and battery systemsThis standard puts forward safety requirements for secondary lithium batteries (including energy storage systems) in industrial applications, covering test methods such as overcharging, short circuit, and thermal runaway. It is similar to the safety performance tests of GB/T 36276-2023 (such as thermal runaway and liquid cooling pipeline pressure resistance).
IEC 62620:2014 "Performance requirements for industrial secondary lithium batteries"It standardizes the performance indicators of industrial lithium batteries, such as cycle life and capacity retention rate, which correspond to the cycle performance (such as high temperature cycle test) and durability requirements in GB/T 36276-2023.
IEC 62660-3:2022 Lithium-ion power batteries for electric road vehicles Part 3: Safety requirementsAlthough mainly aimed at electric vehicles, its safety test methods (such as mechanical shock and thermal abuse) can provide a reference for the safety design of energy storage batteries.
ISO/IEC 17025:2017 General requirements for the competence of testing and calibration laboratories
UL 1973:2022 Standard for Stationary Energy Storage Battery SystemsThe US UL standard specifies the safety and performance requirements for energy storage systems, and partially overlaps with GB/T 36276-2023 in terms of safety testing (such as thermal runaway protection) and system integration requirements.
ISO 12405-4:2023 "Test specification for lithium-ion battery systems for electric road vehicles"Although the test methods involving battery systems are aimed at electric vehicles, some of the test logic (such as high and low temperature adaptability and cycle life) can be used as a reference for energy storage batteries.
