Journal ArticleDOI
Using a Boron-Based Anion Receptor Additive to Improve the Thermal Stability of LiPF6-Based Electrolyte for Lithium Batteries
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In this paper, the possibility of using a strong anion coordinate agent, tris(pentafluorophenyl) borane (TPFPB), to suppress the thermal decomposition of LiPF 6 -based electrolyte was studied.Abstract:
The possibility of using a strong anion coordinate agent, tris(pentafluorophenyl) borane (TPFPB), to suppress the thermal decomposition of LiPF 6 -based electrolyte was studied. Cyclic voltammogram measurements showed thataddition of 0.1 M TPFPB maintained electrochemical stability of a LiPF 6 -based electrolyte at 55°C for a week, while under the same conditions severe degradation in electrochemical stability was observed in the same LiPF 6 -based electrolyte without the TPFPB additive. A Li/LiMn 2 O 4 cell with a composite LiPF 6 -based electrolyte containing 0.1 M TPFPB additive also exhibited superior capacity retention and cycling efficiency at 55°C than a cell with an electrolyte without additive. These data demonstrate the excellent effect of TPFPB additive in improving the thermal stability of LiPF 6 -based electrolyte.read more
Citations
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Nonaqueous liquid electrolytes for lithium-based rechargeable batteries.
TL;DR: The phytochemical properties of Lithium Hexafluoroarsenate and its Derivatives are as follows: 2.2.1.
Journal ArticleDOI
A review on electrolyte additives for lithium-ion batteries
TL;DR: In this article, a review of electrolyte additives used in Li-ion batteries is presented, which can be classified into five categories: solid electrolyte interface (SEI) forming improver, cathode protection agent, LiPF 6 salt stabilizer, safety protection agent and Li deposition improver.
Journal ArticleDOI
Safety mechanisms in lithium-ion batteries
TL;DR: In this paper, a review analyzes possible scenarios that trigger such hazards before proceeding to discuss safety mechanisms such as pressure release valves, one-shot fuses, reversible and irreversible positive temperature coefficient elements, shutdown separators, chemical shuttles, non-flammable electrolytes and coatings.
Journal ArticleDOI
Safer Electrolytes for Lithium-Ion Batteries: State of the Art and Perspectives
Julian Kalhoff,Gebrekidan Gebresilassie Eshetu,Dominic Bresser,Dominic Bresser,Stefano Passerini +4 more
TL;DR: The opportunities for designing new electrolytes appear to be almost infinite, which certainly complicates strict classification of such systems and a fundamental understanding of their properties, but these innumerable opportunities also provide a great chance of developing highly functionalized, new electrolyte systems, which may overcome the afore-mentioned safety concerns.
Journal ArticleDOI
Electrochemical in situ investigations of SEI and dendrite formation on the lithium metal anode
TL;DR: In this paper, Li et al. studied the self-enforcing heterogeneity of lithium deposition and dissolution as the cause for dendrite formation on the lithium metal anode in various liquid organic solvent based electrolytes.
References
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Journal ArticleDOI
Chemical reactivity of PF{sub 5} and LiPF{sub 6} in ethylene carbonate/dimethyl carbonate solutions
Journal ArticleDOI
Corrosion of aluminum at high voltages in non-aqueous electrolytes containing perfluoroalkylsulfonyl imides; new lithium salts for lithium-ion cells
Larry J. Krause,William M. Lamanna,John W. Summerfield,Mark Engle,Gary Korba,Robert B. Loch,Radoslav Atanasoski +6 more
TL;DR: In this article, the corrosion properties of the aluminum current collector in electrolytes based on bisperfluoroethylsulfonyl imide (BESI) salts were investigated.
Journal ArticleDOI
The Synthesis of a New Family of Boron‐Based Anion Receptors and the Study of Their Effect on Ion Pair Dissociation and Conductivity of Lithium Salts in Nonaqueous Solutions
TL;DR: In this paper, a new family of anion receptors based on boron compounds has been synthesized, which can be used as anion receptor in lithium battery electrolytes.
Journal ArticleDOI
Formation of sei on cycled lithium-ion battery cathodes: soft x-ray absorption study
Mahalingam Balasubramanian,H.S. Lee,Xuehui Sun,Xiao-Qing Yang,A. R. Moodenbaugh,James McBreen,Daniel A. Fischer,Ziwen Fu +7 more
TL;DR: In this article, the formation of a solid electrolyte interface on LiNi 0. 8 5 Co 0. 1 5 O 2 cathodes from lithium-ion cells cycled at 40 and 70°C was observed and characterized using soft X-ray absorption spectroscopy (XAS).