8/31/2023 0 Comments Irmc s4 trial licenseHere, via Co/Mn exchange in a Ni-rich LiNi 0.83Co 0.11Mn 0.06O 2 cathode, we demonstrate that the chemical and structural stability of the deep delithiated NCM cathodes are significantly dominated by Co rather than the widely reported Mn. In the NCM family, it is widely accepted that Ni is the stability troublemaker, while Mn has long been considered as a structure stabilizer, whereas the role of Co remains elusive. The intrinsic poor thermal stability of layered LiNi xCo yMn 1– x– yO 2 (NCM) cathodes and the exothermic side reactions triggered by the associated oxygen release are the main safety threats for their large-scale implantation.
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