Synthesis and Electrolyte Study of Lithium Bis(perfluorinated pinacolato)Borate for Lithium-Ion Batteries.
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ABSTRACT: Lithium-ion batteries are the leading rechargeable battery technology. 1 M lithium hexafluorophosphate (LiPF6) dissolved in carbonate solvents is commonly used as the electrolyte; however, LiPF6 is hygroscopic and forms toxic HF in the presence of water. This work presents the synthesis of lithium bis(perfluorinated pinacolato)borate salts Li[B(pp)2]·xDME (x = 0 or 1, pp = perfluorinated pinacolato, O2C2(CF3)4), which exhibit superior air tolerance and have higher thermal stability than LiPF6. Lithium-ion cycling using 1 M Li[B(pp)2]·DME and 0.2 M Li[B(pp)2] electrolyte salts was performed, where 0.2 M Li[B(pp)2] cycled with higher capacity than 1 M Li[B(pp)2]
SUBMITTER: Ould DMC
PROVIDER: S-EPMC12734670 | biostudies-literature | 2025 Dec
REPOSITORIES: biostudies-literature
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