Study on the Effect of Sodium Ion on Cycle Performance of Lithium/Improved Graphite Lithium Ion Cell

Authors

Wen-huang HUANG, Dept. of chem.,Wuhan Univ.,Wuhan,40072,China;
Yu-shun YAN, Power Sources and Material Chemistry Laboratory of INET, Tsinghua University,BeiJing 100084,China;
Chun-rong WAN, Power Sources and Material Chemistry Laboratory of INET, Tsinghua University,BeiJing 100084,China;
Chang-yin JIANG, Power Sources and Material Chemistry Laboratory of INET, Tsinghua University,BeiJing 100084,China;

Abstract

The different concentration of Na + was introduced into the non_aqueous eletrolyte system EC/DEC/LiClO 4 with 4A molecular sieve and lithiated 4A molecular sieve,by which the trace amount of water was removed.The concentrations of Na + and Li + were determined by atomic adsorption spectrometry. The cycle performance of lithium/improved graphite cells was then examined by charging and discharging under the constant electric current.The results demonstrated that the cycle performance of the cells was destroyed by the high concentration of Na + under the small electric current.With the increase of electric current,the cell became less sensitive to the concentration of Na +.According to the examination of cycled cathode's surface by SEM,the mechaninsm of sodium ion's effect on cycle performance of lithium ion cell was raised.

DOI Link

https://doi.org/10.61558/2993-074X.3220

Publication Date

2000-05-28

Online Available Date

2000-05-28

Revised Date

2000-05-28

Received Date

2000-05-28

Recommended Citation

Wen-huang HUANG, Yu-shun YAN, Chun-rong WAN, Chang-yin JIANG. Study on the Effect of Sodium Ion on Cycle Performance of Lithium/Improved Graphite Lithium Ion Cell[J]. Journal of Electrochemistry, 2000 , 6(2): Article 16.
DOI: 10.61558/2993-074X.3220
Available at: https://jelectrochem.xmu.edu.cn/journal/vol6/iss2/16

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