Oxidative stability and reaction mechanism of lithium bis(oxalate)borate as a cathode film-forming additive for lithium ion batteries

Abstract

The most possible oxidative decomposition reaction path of EC–BOB−cluster.

Understanding the thermal decomposition mechanism of a halogen-free chelated orthoborate-based ionic liquid: a combined computational and experimental study

“…30 Wang et al proposed an alternative decomposition pathway for the isolated [BOB] À via a consecutive breakage of C-C and B-O bonds. 18 The combined activation energy of reaction barriers observed in their work (ca. 124 kJ mol À1 ) was much smaller than the energy obtained in the current study.…”

“…As in an older study by Zinigrad et al, 17 where the thermal decomposition of [Li][BOB] was studied, Oh et al obtained similar decomposition products. An important computational study on oxidative stability and decomposition mechanism of [Li][BOB] was recently performed by Wang et al 18 Despite similar reaction products, the oxidative decomposition mechanism of [BOB] À differed from the one suggested in the experimental studies by Oh et al and Zinigrad et al…”

Characterization of the Interface between LiMn₂O₄ Thin-film Electrode and LiBOB-based Electrolyte Solution by Redox Reaction of Ferrocene

“…A series of density functional theory calculations clearly showed that the electrolyte anions strongly influence the oxidation process of PC. 26,27 In the literature, the oxidation potential of PC became lower when PC interacted with anions of lithium salts. Therefore, PC molecules near anions were oxidized at lower potential prior to free PC.…”

“…26 On the other hand, when LiBOB was used, electron was extracted not from PC but from BOB anion, and BOB anion was decomposed into CO 2 gas at last. 27 In this way, since BOB anion was sacrificially oxidized at the electrode/electrolyte interface, the oxidation of PC was suppressed, and consequent formation of the surface film was less likely to occur. Lithium oxalate found in the present result is considered to be an intermediate product or a bi-product of BOB-anion oxidation.…”

The improved effect of co-doping with nano-SiO2and nano-Al2O3on the performance of poly(methyl methacrylate-acrylonitrile-ethyl acrylate) based gel polymer electrolyte for lithium ion batteries

“…Secondary lithium ion battery has been widely used in portable device for energy storage due to its high energy density and friendly environmental effect since its commercialization in 1990s [1][2][3][4][5][6][7][8][9] , and the demand for lithium ion battery is increasing quickly as the rapid development of electric vehicles and hybrid-electric vehicles (EVs and HEVs) [10,11] . However, it remains a challenge to avoid the potential danger in the applications of lithium ion battery, which is caused by the oxidation decomposition of liquid organic electrolytes, especially when high voltage cathodes are used [12][13][14] .…”