Anodic behavior of aluminum current collector in LiTFSI solutions with different solvent compositions

Morita, Masayuki; Shibata, Tomohiko; Yoshimoto, Nobuko; Ishikawa, Masashi

doi:10.1016/s0378-7753(03)00253-2

Cited by 87 publications

(58 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Much higher anodic currents are observed on aluminum electrode, compared with those on PGF electrode. The electrolyte solution begins to corrode the aluminum electrode at a potential of 3.6 V versus Li + /Li, while the electrolyte decomposition starts at 4.5 V versus Li + /Li for the PGF electrode [11]. This suggests that PGF as a cathode current collector in LiTFSI salt based electrolyte shows a much more excellent corrosion resistance and electrochemical stability than aluminum.…”

Section: Resultsmentioning

confidence: 99%

“…Typically, lithium bis(trifluoromethane sulfonyl)imide (LiTFSI) salt possesses excellent thermal stability, better conductivity and electrochemical stability in comparison with LiPF 6 salt, while it shows severe corrosive behaviors toward an aluminum current collector, especially at high oxidizing potentials (above 3.5 V versus Li + /Li) [11,12]. It is a great challenge to inhibit the aluminum corrosion in LiTFSI based electrolytes.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Anticorrosive flexible pyrolytic polyimide graphite film as a cathode current collector in lithium bis(trifluoromethane sulfonyl) imide electrolyte

Han

Zhang

Huang

et al. 2014

Electrochemistry Communications

View full text Add to dashboard Cite

a b s t r a c t a r t i c l e i n f oFlexible pyrolytic polyimide graphite film (PGF) is explored as a cathode current collector in lithium ion batteries using lithium bis(trifluoromethane sulfonyl) imide (LiTFSI) based electrolyte. It is demonstrated that no obvious anodic current is observed up to 4.5 V versus Li + /Li for PGF, while significant corrosion current is found from 3.6 V for aluminum, indicative of better electrochemical stability of PGF than that of aluminum in LiTFSI based electrolyte. LiMn 2 O 4 on aluminum and PGF has been used as model electrode for testing. There is hardly any capacity retained after 10 cycles at room temperature for the LiMn 2 O 4 /aluminum electrode. With regard to the LiMn 2 O 4 /PGF electrode, the capacity retention ratio remained 89% after 1000 cycles. Moreover, at an elevated temperature of 55°C, the capacity retention ratio kept at 81% after 300 cycles. Since LiTFSI-based electrolyte shows advantages in safety, stability and conductivity but could not be used due to Al-corrosion, the application of the PGF current collector could overcome this barrier.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Anticorrosive flexible pyrolytic polyimide graphite film as a cathode current collector in lithium bis(trifluoromethane sulfonyl) imide electrolyte

Han

Zhang

Huang

et al. 2014

Electrochemistry Communications

View full text Add to dashboard Cite

show abstract

“…3 This requires that intensive research should be directed into the development of lithium-ion batteries with these properties.…”

Section: Introductionmentioning

confidence: 99%

“…3 Many studies have been done on this electrolyte, which revealed that the LiPF 6 could decompose under high voltage and at high temperatures.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Suppression of Aluminum Corrosion in Lithium Bis(trifluoromethanesulfonyl)imide-based Electrolytes by the Addition of Fumed Silica

Hamenu¹,

Lee²,

Kim³

et al. 2013

Bulletin of the Korean Chemical Society

View full text Add to dashboard Cite

The corrosion property of aluminum by lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) salt is investigated in liquid and gel electrolytes consisting of ethylene carbonate/propylene carbonate/ethylmethyl carbonate/diethyl carbonate (20:5:55:20, vol %) with vinylene carbonate (2 wt %) and fluoroethylene carbonate (5 wt %) using conductivity measurement, cyclic voltammetry, scanning electron microscopy, and energy dispersive X-ray spectroscopy. All corrosion behaviors are attenuated remarkably by using three gel electrolytes containing 3 wt % of hydrophilic and hydrophobic fumed silica. The addition of silica particles contributes to the increase in the ionic conductivity of the electrolyte, indicating temporarily formed physical crosslinking among the silica particles to produce a gel state. Cyclic voltammetry also gives lower anodic current responses at higher potentials for repeating cycles, confirming further corrosion attenuation or electrochemical stability. In addition, the degree of corrosion attenuation can be affected mainly by the electrolytic constituents, not by the hydrophilicity or hydrophobicity of silica particles.

show abstract

Liquid Nonaqueous Electrolytes

Gores¹,

Barthel²,

Zugmann³

et al. 2011

Handbook of Battery Materials

View full text Add to dashboard Cite

Anodic behavior of aluminum current collector in LiTFSI solutions with different solvent compositions

Cited by 87 publications

References 13 publications

Anticorrosive flexible pyrolytic polyimide graphite film as a cathode current collector in lithium bis(trifluoromethane sulfonyl) imide electrolyte

Anticorrosive flexible pyrolytic polyimide graphite film as a cathode current collector in lithium bis(trifluoromethane sulfonyl) imide electrolyte

Suppression of Aluminum Corrosion in Lithium Bis(trifluoromethanesulfonyl)imide-based Electrolytes by the Addition of Fumed Silica

Liquid Nonaqueous Electrolytes

Contact Info

Product

Resources

About