Origin of Solid Electrolyte Interphase on Nanosized LiCoO[sub 2]

Liu, Na; Li, Hong; Wang, Zhaoxiang; Huang, Xiaohua; Chen, Liquan

doi:10.1149/1.2200138

Cited by 88 publications

(101 citation statements)

References 27 publications

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“…It is reported that SEI film is a good conductor through which lithium ions can freely insert and de-insert and an insulator for electrons [36]. The inexistence of the broad peak and fine overlap in subsequent cycles indicate the integrity preservation of SEI film conformed in the first cycle, which is consistent with that statement that once the SEI layer is formed, it will be stable under subsequent lithium insertion and extraction [37]. The oxidation reaction process of SiO/G/ CNTs&CNFs composite electrode and the pure SiO electrode are different.…”

Section: Electrochemical Performancesupporting

confidence: 80%

Catalyst Ni-assisted synthesis of interweaved SiO/G/CNTs&CNFs composite as anode material for lithium-ion batteries

Hou

Wang

et al. 2015

J Mater Sci: Mater Electron

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An interweaved silicon monoxide/graphite/carbon nanotubes&carbon nanofibers (SiO/G/CNTs&CNFs) composite has been easily synthesized by using high-energy wet ball milling, spray drying in combination with a subsequent chemical vapor deposition method. CNTs&CNFs grow on the interface and the internal interspace of the spherical composite composed of SiO and graphite during the calcination process. The existence of CNTs&CNFs and graphite not only provides a buffer medium to accommodate the volume expansion of SiO during the electrochemical reaction process, but also provides high electrical conductivity for electrode material. When used as an anode material, a reversible specific capacity is approximate 672.3 mAh g -1 after 100 cycles at a current density of 100 mA g -1 , which is about 1.8 times larger than that of the commercial graphite electrode (372 mA g -1 ). Due to the facile synthesis process of the composite and excellent performance of the as-prepared electrode, great commercial potential is envisioned.

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Section: Electrochemical Performancesupporting

confidence: 80%

Catalyst Ni-assisted synthesis of interweaved SiO/G/CNTs&CNFs composite as anode material for lithium-ion batteries

Hou

Wang

et al. 2015

J Mater Sci: Mater Electron

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“…FTIR spectroscopy detected the existence of ROLi and ROCO 2 Li, and XRD detected the existence of Co 2 O 3 and Co 3 O 4 . Later, we observed directly the existence of the surface film on nanosized LiCoO 2 , [116] as shown in Figure 16.…”

mentioning

confidence: 78%

“…[36] A direct image of a fully lithiated nano-SnO anode was given in 1998 by us for the first time. [39] As shown in Figure 5, nanometer-SnO maintains its particle shape after full lithiation (1551 mA h g À1 ) but the interior part was converted into a nanocomposite where LiÀSn crystallites (2-20 nm) are dispersed within an amorphous Li 2 O matrix. This result shows a clear picture that the enhanced cyclic performance of the alloy reaction in the case of tin-based oxides could benefited from two structural factors: alloy grains are on the nanometer scale and are dispersed in another inactive phase.…”

mentioning

confidence: 99%

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Research on Advanced Materials for Li‐ion Batteries

et al. 2009

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In order to address power and energy demands of mobile electronics and electric cars, Li‐ion technology is urgently being optimized by using alternative materials. This article presents a review of our recent progress dedicated to the anode and cathode materials that have the potential to fulfil the crucial factors of cost, safety, lifetime, durability, power density, and energy density. Nanostructured inorganic compounds have been extensively investigated. Size effects revealed in the storage of lithium through micropores (hard carbon spheres), alloys (Si, SnSb), and conversion reactions (Cr2O3, MnO) are studied. The formation of nano/micro core–shell, dispersed composite, and surface pinning structures can improve their cycling performance. Surface coating on LiCoO2 and LiMn2O4 was found to be an effective way to enhance their thermal and chemical stability and the mechanisms are discussed. Theoretical simulations and experiments on LiFePO4 reveal that alkali metal ions and nitrogen doping into the LiFePO4 lattice are possible approaches to increase its electronic conductivity and does not block transport of lithium ion along the 1D channel.

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Electrolytes for Lithium‐Ion Batteries with High‐Voltage Cathodes

Dalavi

Lucht

2013

Lithium Batteries

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Origin of Solid Electrolyte Interphase on Nanosized LiCoO[sub 2]

Cited by 88 publications

References 27 publications

Catalyst Ni-assisted synthesis of interweaved SiO/G/CNTs&CNFs composite as anode material for lithium-ion batteries

Catalyst Ni-assisted synthesis of interweaved SiO/G/CNTs&CNFs composite as anode material for lithium-ion batteries

Research on Advanced Materials for Li‐ion Batteries

Electrolytes for Lithium‐Ion Batteries with High‐Voltage Cathodes

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