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The Division I (QNFS336-40-A1) battery system successfully passed the bench test at Jilin University.
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Release time:
2012-12-15
On December 2, 2012, in cooperation with FAW Bus and Jilin University, we completed our bench test of the NiMH battery system at the Automotive Institute of Jilin University. The test lasted 10 days, and we obtained the Ji
On December 2, 2012, in collaboration with FAW Bus and Jilin University, we completed our bench test of the NiMH battery system at the Automotive Institute of Jilin University. The test lasted 10 days, and we obtained the test report from Jilin University!
The bench tests were conducted in accordance with the People's Republic of China automobile industry standards QC/T744-2006 "Nickel-Metal Hydride Batteries for Electric Vehicles" and QC/T413-2002 "Basic Technical Requirements for Automotive Electrical Equipment." The test results are as follows: At an ambient temperature of 1°C, during steady-state discharge, the actual capacity was 40.125 Ah; during discharge at 4C and 5C rates, the voltage changed smoothly and remained stable, with the discharge temperature staying well below the maximum allowable limit (45°C). During the high-current pulse charge/discharge process (charging at 5C and discharging at 6C), both voltage and temperature remained within normal ranges. Under constant-power discharge conditions (40 kW), the system voltage demonstrated excellent stability, and the state-of-charge (SOC) of the cells was maintained at 30%, 50%, and 80% respectively, with corresponding discharge durations of 368.9 s, 627.0 s, and 947.8 s. Battery internal resistance testing showed that, at SOC levels of 30%, 50%, and 80%, the discharge resistances were 184.37 mΩ, 183.33 mΩ, and 179.17 mΩ, respectively. At SOC levels of 30%, 50%, and 80%, the energy efficiency of the battery was 90.89%, 91.32%, and 90.21%, respectively. The above data clearly demonstrate the superior performance of our battery system.
Through the bench test, Division I Ni MH battery system by Jilin University School of Automobile New Energy Laboratory—teachers and students alike have praised it! We sincerely thank the teachers and students of Jilin University School of Automobile New Energy Experimental Lab for their hard work and support in developing this battery test system!
The bench test has been passed, demonstrating our power battery’s superior performance and securing more authoritative certifications in the hybrid electric bus market. In the future, we’ll be even more competitive in the hybrid car market!
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