Enhanced High-Temperature Cycle Life of LiFePO[sub 4]-Based Li-Ion Batteries by Vinylene Carbonate as Electrolyte Additive
- 1 January 2006
- journal article
- Published by The Electrochemical Society in Electrochemical and Solid-State Letters
- Vol. 9 (12), A537-A541
- https://doi.org/10.1149/1.2351954
Abstract
Addition of vinylene carbonate (VC) in electrolyte solution has been found to greatly improve the high-temperature cycling performance of -based Li-ion batteries. It has been established that the VC additive remarkably suppresses Fe dissolution from cathode and hence, subsequent Fe deposition on the anode side. Furthermore, the VC additive also significantly reduces formation of solid-electrolyte interface layers on both cathodes and mesocarbon microbead (MCMB) anodes. With VC addition, a 18650-type /MCMB cell has been shown to retain capacity after 980 cycles at under charge–discharge rates. This is in contrast with more than 25% capacity loss after merely 100 cycles when no VC is added.Keywords
This publication has 12 references indexed in Scilit:
- Surface film formation on a graphite electrode in Li‐ion batteries: AFM and XPS studySurface and Interface Analysis, 2005
- High-temperature storage and cycling of C-LiFePO4/graphite Li-ion cellsElectrochemistry Communications, 2005
- LiFePO4 storage at room and elevated temperaturesJournal of Power Sources, 2003
- Surface Chemistry of Carbon-Treated LiFePO[sub 4] Particles for Li-Ion Battery Cathodes Studied by PESElectrochemical and Solid-State Letters, 2003
- On the use of vinylene carbonate (VC) as an additive to electrolyte solutions for Li-ion batteriesElectrochimica Acta, 2002
- Surface Structure of LiMn[sub 2]O[sub 4] ElectrodesElectrochemical and Solid-State Letters, 2002
- Influence of manganese(II), cobalt(II), and nickel(II) additives in electrolyte on performance of graphite anode for lithium-ion batteriesElectrochimica Acta, 2001
- Thermal Stability of the HOPG/Liquid Electrolyte Interphase Studied by In Situ Electrochemical Atomic Force MicroscopyJournal of the Electrochemical Society, 2000
- Materials' effects on the elevated and room temperature performance of CLiMn2O4 Li-ion batteriesJournal of Power Sources, 1997
- Cobalt dissolution in LiCoO2-based non-aqueous rechargeable batteriesSolid State Ionics, 1996