Tongchao Liu

TL;DR: The steric effect of cation size and the magnetic interactions between TM cations are the two main driving forces to promote the Ni/Li exchange during synthesis and the electrochemical cycling, and the low energy barrier of Ni2+ migration from the 3a sites in the TM layer to the 3b site in the Li layer further provides a kinetic advantage.

TL;DR: A simple seaweed biomass conversion strategy is proposed to synthesize highly porous multishelled Ni‐rich Li(NixCoyMnz)O2 hollow fibers with very low cation mixing that exhibit remarkable energy density, high‐rate capacity, and long‐term cycling stability when used as cathode material for Li‐ion batteries.

TL;DR: In this paper, the authors examined the widened window (2.55 V) of a superconcentrated (unsaturated) aqueous solution of LiNO3 through both theoretical and spectral analyses and discovered that a local structure of intimate Li+water interaction arises at super-concentration, generating (Li+(H2O)2)n polymer-like chains to replace the ubiquitous hydrogen bonding between water molecules.

TL;DR: Li et al. as discussed by the authors analyzed the temperature effects of Li-ion diffusion by analyzing crystal structures of layered Li(NixMnyCoz)O2 (NMC) (x + y + z = 1) materials.

TL;DR: Using ab initio calculations combined with experiments, it is clarified how the thermal stability of NMC materials can be tuned by the most unstable oxygen, which is determined by the local coordination structure unit (LCSU) of oxygen (TM(Ni, Mn, Co)3-O-Li3-x').