Impact of active material surface area on thermal stability of LiCoO2 cathode

Succinic acid-based leaching system: A sustainable process for recovery of valuable metals from spent Li-ion batteries

“…The difference between Fig. 3(a) and (b) is that much weaker intensity peaks ((003), (101), and (104)) [23,25,26] of LiCoO 2 were apparent in the XRD patterns of the powders after leaching, especially the (003) peaks. We attributed this difference to the spent LiCoO 2 samples reacting with the succinic acid.…”

“…3 shows the XRD patterns of spent cathodic active materials after calcination and grinding, as well as the black residues after acid leaching. From the XRD data, the crystalline LiCoO 2 phase was clearly identified [25]. The difference between Fig.…”

Investigating lithium-ion battery materials during overcharge-induced thermal runaway: an operando and multi-scale X-ray CT study

“…Jiang and Dahn 16 used accelerated rate calorimetry to show the effect of particle size on the onset temperature of thermal runaway, demonstrating that a larger particle size is more thermally stable. More recently, Gedar et al 17 demonstrated through thermogravimetric analyses that the mass loss associated with the decomposition of LiCoO 2 increases linearly with surface area at 400 °C. A higher mass loss corresponds to increased heat generation during failure, and increased gas (including O 2 ) evolution, further fuelling decomposition of the electrolyte 18 ; smaller particles were shown to release more oxygen and have an oxygen deficiency at their surface.…”

A polymerized C60 coating enhancing interfacial stability at three-dimensional LiCoO2 in high-potential regime

“…After being indexed with the standard JCPDS data (card No. 50-0653), the patterns exhibit the typical Bragg peaks of HT-LCO (layered R-3m structure) [28,29] with identical 2q position for all samples, reflecting the HT phase was formed after laser annealing of laser structured LCO samples. Furthermore, no structural changes due to subsequent C 60 coating could be observed.…”