CAJ | 학술논문

鉴于汽车启动电源铅酸电池存在严重环境污染隐患，本文采用环保型32650圆柱磷酸铁锂电池组装成25.6 V/65 A·h电池组代替铅酸电池应用于汽车启动电源，并分别对磷酸铁锂电池组的常温和低温启动能力、倍率性能和低温放电性能等进行测试。实验结果表明，电池组0.33 C放电容量为67.028 A·h，3 C放电容量为0.33 C放电容量的98.24%，电池组具有较好的倍率性能；电池组在?30℃放电容量为额定容量的84.7%，具有良好的低温性能；电池组在25℃和?20℃下以600 A电流放电，单串电池电压均高于放电保护电压；电池组在25℃搁置28 d之后，容量恢复率为99.37%；磷酸铁锂电池组性能均满足汽车启动电源性能要求，可以代替铅酸电池作为汽车启动电源。
감우기차계동전원연산전지존재엄중배경오염은환，본문채용배보형32650원주린산철리전지조장성25.6 V/65 A·h전지조대체연산전지응용우기차계동전원，병분별대린산철리전지조적상온화저온계동능력、배솔성능화저온방전성능등진행측시。실험결과표명，전지조0.33 C방전용량위67.028 A·h，3 C방전용량위0.33 C방전용량적98.24%，전지조구유교호적배솔성능；전지조재?30℃방전용량위액정용량적84.7%，구유량호적저온성능；전지조재25℃화?20℃하이600 A전류방전，단천전지전압균고우방전보호전압；전지조재25℃각치28 d지후，용량회복솔위99.37%；린산철리전지조성능균만족기차계동전원성능요구，가이대체연산전지작위기차계동전원。
In view of the serious environmental pollution of lead-acid battery of Starting Power for New Energy Automobile, a 25.6 V/65 A·h lithium iron phosphate battery pack was assembled with 32650 type of cylindrical lithium iron phosphate cell to replace the lead-acid battery for starting power for new energy automobile. The room temperature and low-temperature starting capability, rate capability and low-temperature discharge performance were investigated. The battery pack provided a capacity of 67.03 A·h at 0.33 C and retained 98.24% capacity at 3 C. The battery pack obtained 84.7% of capacity at?30oC. The voltage of every single battery was higher than the discharge protection voltage when the battery pack was discharged at 600 A under 25oC and?20oC, respectively. The battery pack retained 99.37% of capacity after storage at 25oC for 28 days. All these data can meet the requirements of the starting power, indicating that the lithium iron phosphate battery pack can replace the lead-acid battery as starting power for new energy automobile.