有机膨胀剂对动力电池低温性能的影响  

Influence of organic expander on low-temperature performance of power batteries

作　　者：李敏[1,2] 吴涛 战祥连 陈龙霞 孟秀霞 LI Min;WU Tao;ZHAN Xianglian;CHEN Longxia;MENG Xiuxia(Shandong University of Technology,Zibo Shandong 255056,China;Zibo Torch Energy Co.,Ltd.,Zibo Shandong 255056,China)

机构地区：[1]山东理工大学,山东淄博255056 [2]淄博火炬能源有限责任公司,山东淄博255056

出　　处：《电源技术》2025年第4期859-864,共6页Chinese Journal of Power Sources

摘　　要：以腐植酸配方为基础配方,研究添加栲胶、木素磺酸钠及乙醇处理腐植酸等有机膨胀剂对铅酸动力电池性能的影响。通过差热分析、SEM观察、低温容量及耐高温性能等研究发现,橡椀栲胶、乙醇处理腐植酸及木素磺酸钠可提高电池的低温容量,但橡椀栲胶的热稳定性相对较差,因此优选乙醇处理腐植酸和木素磺酸钠做进一步的含量优化。含量优化实验发现,乙醇处理腐植酸与木素磺酸钠的复合、木素磺酸钠添加量的进一步提高,有助于低温容量的进一步提升。但是随着木素磺酸钠添加量的提高,电池的充电接受能力有所降低,当超过一定量后,电池寿命有提前终止的风险。Based on the humic acid formula,the effect of adding organic expansion agents such as tannin extract,sodium lignosulfonate,and ethanol to treat humic acid on the performance of lead-acid power batteries was studied.Through differential thermal analysis,SEM observation,lowtemperature capacity,and high-temperature resistance performance,it is found that oak extract,ethanol treated humic acid,and sodium lignosulfonate can improve the low-temperature capacity of batteries.However,the thermal stability of oak extract is relatively poor.Therefore,ethanol treated humic acid and sodium lignosulfonate are preferred for further content optimization.The content optimization experiment shows that the combination of humic acid and sodium lignosulfonate treated with ethanol,as well as the further increase in the amount of sodium lignosulfonate added,contribute to the further enhancement of low-temperature capacity.However,as the amount of sodium lignosulfonate added increases,the charging acceptance capacity of the battery decreases.When it exceeds a certain amount,there is a risk of premature termination of the battery life.

关 键 词：有机膨胀剂 低温性能 热稳定性 充电接受能力 

分 类 号：TM911[电气工程—电力电子与电力传动]