锂离子电池与超级电容器复合的低温起动性能  

Low-temperature start performance of Li-ion battery composited with supercapacitor

作　　者：曹云鹤 王畅 吕树铎 王建勇 CAO Yunhe;WANG Chang;LYU Shuduo;WANG Jianyong(State Key Laboratory of Advanced Chemical Power Sources,Guizhou Meiling Power Sources Co.,Ltd.,Zunyi,Guizhou 563003,China)

机构地区：[1]贵州梅岭电源有限公司,特种化学电源全国重点实验室,贵州遵义563003

出　　处：《电池》2024年第1期86-88,共3页Battery Bimonthly

摘　　要：铅酸电池低温下大电流放电能力显著减弱,不能快速可靠地起动车辆。测试磷酸铁锂锂离子电池组及其与超级电容器并联的复合电源的低温放电性能。超级电容器的低温大电流放电性能可对锂离子电池组的放电电流进行补偿,降低放电倍率。复合电源在-40℃下以180 A放电时,超级电容器放电电流最高为127 A,大大降低了锂离子电池组的放电倍率,放电电压提升34.9%。复合电源的低温大电流放电性能,可保障车辆的低温起动。The heavy load discharge performance of lead-acid battery at low temperature is significantly weakened,the vehicle can not be started quickly and reliably.The low-temperature discharge performance of lithium iron phosphate Li-ion battery pack and composite power in parallel with supercapacitor is tested.The low-temperature and heavy load discharge performance of supercapacitors can compensate for the discharge current of Li-ion battery pack and reduce the discharge rate.When the composite power is discharged at 180 A at -40 ℃,the discharge current of the supercapacitor is up to 127 A,which greatly reduces the discharge rate of Li-ion battery pack,the discharge voltage is increased by 34.9%.The low-temperature and heavy load discharge performance of composite power can ensure the low-temperature starting of vehicles.

关 键 词：磷酸铁锂 锂离子电池 复合电源 超级电容器 并联 起动 低温 

分 类 号：TM533[电气工程—电器] TM912.9