Cited 13 time in webofscience Cited 15 time in scopus

Succinonitrile as a Corrosion Inhibitor of Copper Current Collectors for Overdischarge Protection of Lithium Ion Batteries

Title
Succinonitrile as a Corrosion Inhibitor of Copper Current Collectors for Overdischarge Protection of Lithium Ion Batteries
Authors
Kim, YS[Kim, Young-Soo]Lee, SH[Lee, Seon-Ha]Son, MY[Son, Mi-Young]Jung, YM[Jung, Young Mee]Song, HK[Song, Hyun-Kon]Lee, H[Lee, Hochun]
DGIST Authors
Lee, SH[Lee, Seon-Ha]; Lee, H[Lee, Hochun]
Issue Date
2014-02-12
Citation
ACS Applied Materials and Interfaces, 6(3), 2039-2043
Type
Article
Article Type
Article
Keywords
Copper Current CollectorCorrosion InhibitorLithium Ion BatteriesOverdischargeSuccinonitrile
ISSN
1944-8244
Abstract
Succinonitrile (SN) is investigated as an electrolyte additive for copper corrosion inhibition to provide overdischarge (OD) protection to lithium ion batteries (LIBs). The anodic Cu corrosion, occurring above 3.5 V (vs Li/Li +) in conventional LIB electrolytes, is suppressed until a voltage of 4.5 V is reached in the presence of SN. The corrosion inhibition by SN is ascribed to the formation of an SN-induced passive layer, which spontaneously develops on the copper surface during the first anodic scan. The passive layer is composed mainly of Cu(SN)2PF6 units, which is evidenced by Raman spectroscopy and electrochemical quartz crystal microbalance measurements. The effects of the SN additive on OD protection are confirmed by using 750 mAh pouch-type full cells of LiCoO2 and graphite with lithium metal as a reference electrode. Addition of SN completely prevents corrosion of the copper current collector in the full cell configuration, thereby tuning the LIB chemistry to be inherently immune to the OD abuses. © 2014 American Chemical Society.
URI
http://hdl.handle.net/20.500.11750/2399
DOI
10.1021/am405092y
Publisher
American Chemical Society
Related Researcher
  • Author Lee, Ho Chun Electrochemistry Laboratory for Sustainable Energy(ELSE)
  • Research Interests Lithium-ion batteries; Novel Materials for rechargeable batteries; Novel energy conversion;storage systems; Electrochemistry; 리튬이차전지; 이차전지용 신규 전극 및 전해액; 신규 에너지변환 및 저장 시스템; 전기화학
Files:
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Collection:
Energy Science and EngineeringElectrochemistry Laboratory for Sustainable Energy(ELSE)1. Journal Articles


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