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In this study, novel CuIn 2 S 4 (CIS) material is synthesized through a hydrothermal technique. The as-prepared materials are characterized the structural, chemical and electrochemical properties. The electrochemical performance is evaluated by utilizing as a novel anode material for Li-ion storage. The pristine CuIn 2 S 4 material used cell exhibits Li-ion reversible capacities of 349 and 176 mAh g−1 at the current densities of 0.2 and 1 A g−1, respectively. Furthermore, to improve the electrochemical performance of pristine CIS modified with carbon black (CIS/C) through high-energy ball-milling technique. The resultant CIS/C composite shows an improving reversible discharge capacity of 717 mAh g−1 at 0.2 A g−1 and 591 mAh g−1 at 1 A g−1, respectively. Moreover, the CIS/C composite preserves a high discharge capacity of 376 mAh g−1 over 500 cycles without cyclic decay at 5 A g−1. Additionally, the ex-situ XRD and cyclic voltammetry (CV) analyses expose a Li-ions stored into CIS via conversion reaction mechanism. Overall, this work indicates that the novel material utilization of energy storage device and improvement of storage performance for future high-energy Li and post Li-ion batteries applications. [Display omitted] • CuIn 2 S 4 and CuIn 2 S 4 /C are applied for Li-Ion storage anode for the first-time. • The Li-ion storage mechanism is proposed through CV and ex-situ XRD analyses. • The CIS/C electrode cell exposed better electrochemical performance than bare CIS. • CIS/C composite preserves a high discharge capacity of 376 mAh g−1 over 500 cycles at 5 Ag−1. [ABSTRACT FROM AUTHOR]

• P-doped SiO x /graphene aerogel composite (SiO x @GA) is prepared by ball milling and evaporative condensation technique. • Phosphorous doping leads to an enhancement in both specific capacity and initial Coulombic efficiency. • Graphene aerogel could relieve the volume variations of SiO x during Li-ion cycling. • The optimized P-SiO x @GA exhibits good electrochemical performance in both half and full Li-ion storage. Silicon oxide (SiO x) is promising as an earth abundant eco-friendly cost-effective anode material for lithium-ion batteries (LIBs), boasts a higher capacity compared to commercial graphite, garnering significant interest. Nevertheless, its practical application is hindered by issues related to poor cycling performance and low electronic conductivity. In this investigation, graphene aerogel-wrapped (GA) red phosphorus (P) doped SiO x (P-SiO x @GA) composite material is successfully constructed through ball-milling followed by freeze-drying and thermal treatment processes. The prepared materials are characterized the physico-chemical properties. The electrochemical performance is evaluated through Li-ion half and full (LiFePO 4 //P-SiO x @GA) cells configuration. The synthesized P-SiOx@GA electrode exhibits outstanding cyclic performance, demonstrating a specific capacity of 1094 mAh g−1 at 0.5C with a capacity retention of 80.3 % over 200 cycles in half-cell test. Furthermore, it demonstrates superior rate capability and delivers a reversible rate capacity of 754 mAh g−1 at 2C. Besides, the Li-ion punch cell configuration of LiFePO 4 //P-SiO x @GA shows good reversible capacity of 1.4 mAh at 0.5C over 300 cycles. The doping of P and porous 3D structure of GA forms an SiO x matrix network is facilitate the establishment of a 3D conductive pathway for electron transport and Li+ diffusion but also acts as a flexible matrix to accommodate the volume changes of SiO x. Therefore, the results and way of preparation promotes a practical feasibility of high-performance Si-based Li-ion batteries applications. [Display omitted] [ABSTRACT FROM AUTHOR]

[Display omitted] • A TiN@LiNi 0.8 Co 0.1 Mn 0.1 O 2 cathode is fabricated via plasma-assisted sputtering route. • TiN coatings improve rate capability and reversible capacity of LiNi 0.8 Co 0.1 Mn 0.1 O 2. • The TiN coating delivers an artificially stable CEI during (de)lithiation processes. • NCM811-TiN/graphite pouch cell delivers capacity of 17.5 mAh over 200 cycles at 1C. Ni-rich LiNi 0.8 Co 0.1 Mn 0.1 O 2 (NCM811) is a promising high-performance cathode material for large-scale Li-ion storage applications. However, devices consisting of Ni-rich materials are less thermally stable, and several factors hinder their use in practical high-energy–density applications. Herein, an approach for plasma-modified NCM811 with TiN is proposed to effectively improve the electrochemical performance and stabilize the cathode–electrolyte interface reaction. In addition, the following aspects are systematically investigated using different techniques: (i) physicochemical properties; (ii) Li storage performance, particularly, cyclic/rate capacity, kinetic behavior of the lithium-ion diffusivities, and electrical conductivity; and (iii) key factor for improving the electrochemical performance through ex-situ/in-situ investigations. The NCM811-TiN/graphite pouch cell displays a high reversible capacity of 17.5 mAh and sustains over 200 cycles at 1C. Comprehensive characterization and probes indicate that the TiN interface with the NCM electrode enhances thermal stability, cyclic capacity, and rate stability without changing the bulk structure and morphology. Hence, these findings facilitate the practical use of safe and high-energy–density Li-ion batteries. [ABSTRACT FROM AUTHOR]

Silicon is growing potential interesting material for high-performance lithium-ion batteries anode, due to its high theoretical specific capacity and vastly abundance elemental. Moreover, for the commercialization of Si-based anode is still suffered by huge volume changes during the lithiation/delithiation cyclic process and low electrical conductivity. Therefore, to address these issues, we demonstrate an approach to anchor silicon particles into porous three-dimensional (3D) graphene aerogels (Si/GA) through a facile hydrothermal followed by freeze-drying techniques. The porous graphene aerogels promote the electrolyte infiltration to enhance Li-ion diffusion and buffer the volume extension of silicon particles to boost the rate capability, cycle stability during (de)lithiation processes. The as-synthesized Si/GA exhibits good cyclic stability and showed the specific capacity of 850 mAh g−1 after 200 cycles with a coulombic efficiency of 99% at a current density of 0.5C. Overall, this work will tenure to protect the volume alteration of Si also enhanced the Li-ion storage for High-performance applications via a simple fabrication of Si/graphene aerogels composite anode. [Display omitted] • 3D porous graphene aerogel wrapped Si composite anode is constructed by hydrothrmal freeze drying route. • The porous structure buffers the volume expansion of Si. • Electrochemical performance of Si is improved by 3D structure graphene aerogel • The Si/GA (1:2) composite anode shows better Li-ion storage cyclic and rate test. [ABSTRACT FROM AUTHOR]

• The Al3+-substitutional doped TiNb 2 O 7 material is prepared by a facile solvothermal method with calcination process. • Al3+-doped TiNb 2 O 7 is used as an anode for the first time for LIBs. • Li-ion half-cell preserved a discharge capacity of 155 mAh g−1 after 250 cycles at 5 C. • Theoretical calculations of bare and doped-TiNb 2 O 7 are demonstrated. Titanium and Niobium-based oxides are served as safety and more stable intercalation type potential anode materials for Li-ion batteries. In this work, we synthesize pristine titanium niobate (TiNb 2 O 7 , as denoted TNO) and novel aluminium doped TNO (Al-TNO) mesoporous materials via a facile solvothermal method for lithium-ion rechargeable batteries anode. The effect of Al-doping into the TNO crystal structure, physico-chemical properties and electrochemical performance are systematically analyzed. The optimized Ti 0.95 Al 0.05 Nb 2 O 7 sample exhibits higher Li-ion storage performance. The observed initial specific capacity is 283 mAh g−1 at 0.1 C and sustains 155 mAh g−1 after 250 cycles at a current rate of 5 C. Whereas, the pristine TiNb 2 O 7 exhibits initial discharge capacity of 278 mAh g−1 at 0.1 C and maintains 118 mAh g−1 after 250 cycles at 5 C. The resultant Al-TNO leads to enhance the conductivity and facilitate the fast Li-ion kinetics behaviours. Therefore, Al-doped TNO electrode cell revealed a higher electrochemical performance than that of pristine TNO electrode. Hence, this work provides an effective manner to improve the high-performance anode materials for Li-ion high-energy storage applications. [Display omitted] [ABSTRACT FROM AUTHOR]