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Chemcial Industry and Engineering 2016, Vol. 33 Issue (2) :70-76    DOI: 10.13353/j.issn.1004.9533.20141002
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Performance of High Temperature Storage for Lithium Thionylchloride Battery
Ma Ling1,2, Xu Qiang1, Sang Lin2, Ding Fei2, Liu Xingjiang1,2
1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;
2. Science and Technology on Power Sources Laboratory, Tianjin Institute of Power Sources, Tianjin 300384, China

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Abstract 

The lithium/thionylchloride batteries have been widely used in the fields of national economy, especially in the field of national defense, due to its high energy density. Because of the activity of lithium, the battery capacity of thionylchloride cells would decrease when keeping at high temperature. The decays of capacities increase with the time of storage, and the degree of attenuation is not the same after different time. In this paper the performance of lithium/thionylchloride batteries after high temperature storage is studied. The discharge capacity is 2 151 mAh and 1 744 mAh when the battery was discharged at 0.01C after storage at 60 ℃ for 7 d and 35 d. While the battery was stored at 40 ℃ and 60 ℃ for 21 d, it can release 2 294 mAh and 1 974 mAh. The results showed that the decays of both capacity and discharge platform were improved with increasing of both temperature and storage time. However, the impedance of cells increased with the increasing for both temperature and storage time. Furthermore, the open-circuit voltage of cells increases with the time of storage.
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Ma Ling
Xu Qiang
Sang Lin
Ding Fei
Liu Xingjiang
Keywords： lithium/thionyl battery；   high temperature；   storage；   discharge；   impedance     
Received 2014-04-20;
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Ma Ling, Xu Qiang, Sang Lin, Ding Fei, Liu Xingjiang.Performance of High Temperature Storage for Lithium Thionylchloride Battery[J]  Chemcial Industry and Engineering, 2016,V33(2): 70-76
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