摘要
为有效解决无人潜航器密闭环境下大规模锂电池上艇存在的安全性问题,将“磷酸铁锂正极-固态电解质-铌钛氧负极”本质安全性锂电池技术引入无人潜航器锂电池设计中。对无人潜航器锂电池的功能定位进行分析,提出“磷酸铁锂正极-固态电解质-铌钛氧负极”本质安全性锂电池。在联调试验中和船舶上实际应用该锂电池,结果表明:“磷酸铁锂正极+固态电解质+钛铌氧负极”锂电池的电压平台、能量密度、功率密度等功性能指标满足上艇需求,循环寿命可提高至数千次,热失控、短路、跌落、低气压、非正常充电和海水浸泡等试验测试过程中均未发生热失控,且具有良好的环境适应性、适装性和匹配性,能提升无人潜航器的安全性。
In order to effectively solve the safety problem of large-scale lithium batteries in the closed environment of an unmanned submersible,the intrinsic safety lithium battery technology of"Lithium iron phosphate positive electrode solid electrolyte niobium titanium oxide negative electrode"is applied to the unmanned submersible.Based on the analysis of the functional orientation of the lithium battery of the unmanned submersible,a Intrinsic safety lithium battery,"Lithium iron phosphate positive electrode solid electrolyte niobium titanium oxide negative electrode"is proposed.The lithium battery has been applied in the joint commissioning test and on the ship.The results show that the voltage platform,energy density,power density and other performance indicators of the lithium battery with"lithium iron phosphate positive electrode+solid electrolyte+titanium niobium oxide negative electrode"meet the requirements for boarding,and the cycle life can be increased to thousands of times.Thermal runaway,short circuit,drop,low pressure,abnormal charging,and seawater immersion did not occur during the test process,and it has good environmental adaptability,adaptability,and compatibility,which can improve the safety of unmanned underwater vehicles.
作者
何丹青
谢坤
HE Danqing;XIE Kun(Yiwu Industrial and Commercial College,Jinhua 322000,Zhejiang,China;China Ship Development and Design Center,Wuhan 430064,China)
出处
《船舶工程》
CSCD
北大核心
2024年第3期109-116,共8页
Ship Engineering
基金
高等学校访问工程师校企合作项目(FG2018154)。
关键词
无人潜航器
磷酸铁锂正极
固态电解质
铌钛氧负极
安全性
unmanned underwater vehicle(UUV)
lithium iron phosphate cathode
solid electrolyte
Niobium titanium oxide negative electrode
safety
