The dissolution and deposition behavior in lithium powder electrode
作者: Jin Suk KimWoo Young YoonKeon Young YiBok Ki KimByung Won Cho
作者单位: 1Division of Material Science and Engineering, Korea University, 1, 5-Ka, Anam-dong, Sungbuk-gu, Seoul 136-701, Republic of Korea
2Department of Electrical Engineering, Kwangwoon University, 1, 447-Ka, Wolgye-dong, Nowon-gu, Seoul 139-701, Republic of Korea
3Department of Electronic Engineering, Kwangwoon University, 1, 447-Ka, Wolgye-dong, Nowon-gu, Seoul 139-701, Republic of Korea
4Eco-Nano Research Center, KIST, 1, 39-Ka, Hawolgok-dong, Sungbuk-gu, Seoul 136-791, Republic of Korea
刊名: Journal of Power Sources, 2006, Vol.165 (2), pp.620-624
来源数据库: Elsevier Journal
DOI: 10.1016/j.jpowsour.2006.10.033
关键词: Lithium metal secondary cellLithium powderDissolution and deposition behaviorMorphological change
原始语种摘要: Abstract(#br)The morphological changes of a lithium powder electrode during cycling (discharge/charge) were observed at various current densities by scanning electron microscopy (SEM). The dissolution of the lithium powder electrode seemed to occur uniformly in the whole body of the electrode during discharge, and deposition occurred so as to sustain the initial powder shape during successive charging at a low current density. A model of the current density distribution and bonding number differences was developed, which rationalized the dissolution and deposition behaviors of the lithium ions. The suppression of dendritic growth in the lithium powder electrode was also understood from the standpoint of the Sand's time. The increased cycling life and small volume changes in the lithium...
全文获取路径: Elsevier  (合作)
分享到:
来源刊物:
影响因子:4.675 (2012)

×