Structural, microstructural and electrochemical studies of TiO₂–Ag double layer coated NCM cathode for lithium-ion batteries

Triallyl Borate as an Effective Separator/Cathode Interphase Modifier for Lithium-ion Batteries

“…As a result, a substantial amount of electrolyte decomposition occurs in cells composed of Ni-rich layered oxides cathode materials, resulting in rapid degradation of cycle performance [23,24]. At room temperature, such parasitic reactions can be well controlled by surface modification of inorganic materials such as Al 2 O 3 [25][26][27], ZrO 2 [28][29][30], TiO 2 [31][32][33], and Li 3 PO 4 [34][35][36]. However, suppressing electrolyte decomposition at high temperatures is challenging, implying that stable high temperature cycling should be improved to increase the practical energy density of the cell.…”

Controllable atomic layer deposition coatings to boost the performance of LiMnxCoyNi1−x−yO2 in lithium-ion batteries: A review

“…Coating approach contributes to suppressing the occurrence of side reactions and accelerating the transport of lithium ions [11,12,13,14,15], whereas doping approach contributes to stabilizing the crystal structure and improving the reaction kinetics [16,17,18,19,20]. To obtain an excellent coating structure, various preparation methods have been developed, including high temperature sintering [21], sol-gel method [22], chemical vapor deposition (CVD) [23], liquid phase [24], hydrothermal [25] and solvothermal method [26], atomic layer deposition (ALD) [27], and solution-based precipitation [28]. Indeed, a large number of coating materials have been used, including metals (e.g., Ag [29]), metal oxides (e.g., Al 2 O 3 [30], SnO 2 [31], ZrO 2 [32], MnO 2 [33], Fe 2 O 3 [34], MgO [35], and ZnO [5]), fluorides (BiOF [36] and AlF 3 [37]), metal phosphates (Li 3 PO 4 [38], FePO 4 [39], AlPO 4 [40], and Li 4 P 2 O 7 [41]), and carbon, among others [42,43,44].…”