全海深深潜器所用动力锂离子电池电气特性
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摘要
通过试验研究了全海深深潜器所用磷酸铁锂离子电池在常压、20℃,常压、3℃,以及高压100MPa、20℃环境下的电气特性,评价了最大放电深度、内阻、开路电压随温度和压力变化的情况.结果表明:在常压、3℃条件下锂离子电池最大放电深度的衰减较大,欧姆内阻与极化内阻的增幅较大,开路电压略有降低;与常压、20℃相比,在高压100MPa、20℃下,锂离子电池最大放电深度的衰减较大,欧姆内阻略有增加,而开路电压略有降低.
A series of lithium iron phosphate batteries characteristics test were taken to analyzing the relationship between batteries electrical characteristics and the temperature or pressure.The relationship between maximum depth of discharge(DOD),internal resistance and open circuit voltage with temperature and pressure was studied.The results show that under atmospheric pressure and 3℃,the maximum DOD of the battery is greatly attenuated.The ohmic internal resistance and the polarization internal resistance increase significantly,and the open circuit voltage is slightly reduced.Compared with atmospheric pressure and 20℃,at the high pressure of 100 MPa and 20℃,the maximum discharge depth of the battery is greatly attenuated,the ohmic internal resistance is slightly increased,and the open circuit voltage is slightly lowered.
A series of lithium iron phosphate batteries characteristics test were taken to analyzing the relationship between batteries electrical characteristics and the temperature or pressure.The relationship between maximum depth of discharge(DOD),internal resistance and open circuit voltage with temperature and pressure was studied.The results show that under atmospheric pressure and 3℃,the maximum DOD of the battery is greatly attenuated.The ohmic internal resistance and the polarization internal resistance increase significantly,and the open circuit voltage is slightly reduced.Compared with atmospheric pressure and 20℃,at the high pressure of 100 MPa and 20℃,the maximum discharge depth of the battery is greatly attenuated,the ohmic internal resistance is slightly increased,and the open circuit voltage is slightly lowered.
引文
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[4]戴国群,陈性保,胡晨.锂离子电池在深潜器上的应用现状及发展趋势[J].电源技术,2015,39(8):1768-1772.DAI Guoqun,CHEN Xingbao,HU Chen.Current status and development trend of lithium-ion battery in underwater vehicle[J].Chinese Journal of Power Sources,2015,39(8):1768-1772.
[5]GRIFFITHS G,JAMIESON J,MITCHELL S,et al.Energy storage for long endurance AUVs[C]∥Advances in Technology for Underwater Vehicles.London,UK:The Institute of Marine Engineering,Science and Technology,2004:8-16.
[6]戴国群.具有压力补偿装置的潜用智能锂电池组:CN202534715U[P].2012-11-14[2017-07-04].DAI Guoqun.Submersible lithium battery pack with pressure compensation device:CN202534715U[P].2012-11-14[2017-07-04].
[7]RUTHERFORD K,DOERFFEL D.Performance of lithium-polymer cells at high hydrostatic pressure[C]∥Unmanned Untethered Submersible Technology Conference(UUST).New Hampshire,USA:IEEE,2005:1-12.
[8]HYAKUDOME T,YOSHIDA H,ISHIBASHI S,et al.Development of advanced Lithium-ion battery for underwater vehicle[C]∥Symposium on Underwater Technology and Workshop on Scientific Use of Submarine Cables and Related Technologies.Tokyo,Japan:IEEE,2011:1-4.
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[10]谭晓军.电动汽车动力电池管理系统设计[M].广州:中山大学出版社,2011.TAN Xiaojun.The design of electric vehicle power battery management system[M].Guangzhou:Sun Yat-Sen University Press,2011.