TiCT Filled in EMIMBF Semi-Solid Polymer Electrolytes for the Zinc-Metal Battery.

Zinc-ion batteries (ZIBs) are promising candidates for safe energy storage applications. However, undesirable parasitic reactions such as dendrite growth, gas evaluation, anode corrosion, and structural damage to the cathode under an acidic microenvironment severely affected cell performance. To resolve these issues, an MXene entrapped in an ionic liquid semi-solid gel polymer electrolyte (GPE) composite was explored.

Decoupling the Cumulative Contributions of Capacity Fade in Ethereal-Based Li-O Batteries.

In the loop of numerous challenges and ambiguities, Li-O batteries are crawling to reach their commercialization phase. To achieve the progressive milestones, along with the developments in the architecture of cathodes, anodes, and electrolytes, understanding its failure mode is equally important. Under an unrestricted charge-discharge protocol, cyclability of nonaqueous Li-O batteries are limited to only a few cycles.

Ultrasonochemically-induced MnCoO nanospheres synergized with graphene sheet as a non-precious bi-functional cathode catalyst for rechargeable zinc-air battery.

Rechargeable zinc-air batteries are considered to be more sustainable and efficient candidates for safe, low-cost energy storage because of their higher energy density and the abundance of zinc resources. Recently Zn-air batteries have aroused significant research attention, however, because an unresolved impediment due to the notorious instability of the oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) kinetics of the cathode catalyst limit their practical application. Herein, we report the synthesis of non-precious MnCoO nanospheres synergized with a graphene sheet as a bi-functional cathode catalyst for rechargeable Zn-air battery application using a one-pot probe sonochemical method.

Viable Synthesis of Porous MnCo O /Graphene Composite by Sonochemical Grafting: A High-Rate-Capable Oxygen Cathode for Li-O Batteries.

With an anticipation of their use in electric vehicles, Li-O batteries are found to be attractive despite their complex chemistry and drawbacks. To be successful, cathode materials that are robust enough to overcome the sluggish kinetics of the charge-discharge reactions are essential. This work reports sonochemically synthesized porous MnCo O /graphene (MCO/G) as a hybrid cathode material in nonaqueous Li-O batteries.

Role of transition metals in a charge transfer mechanism and oxygen removal in LiNiMnCoO: experimental and first-principles analysis.

Oxygen removal from high capacity Li-rich layered oxide Li1.17Ni0.17Mn0.

Lithium diffusion study in LiMnO and LiNiMnO: a combined experimental and computational approach.

A theoretical and experimental diffusivity study of LiMnO and LiNiMnO has been carried out to investigate the effect of Mn, Ni and surrounding atoms on Li diffusion and to understand how the Li diffusion trajectory changes with different charge spheres. It is observed that due to the presence of Ni in LiNiMnO, the activation energy reduces in all the possible diffusion paths, which helps in faster Li diffusion. This study brings a new physical insight into Li diffusion based on elliptical and straight diffusion trajectories.

Mitigating the Surface Degradation and Voltage Decay of LiNiMnCoO Cathode Material through Surface Modification Using LiZrO.

In the quest to tackle the issue of surface degradation and voltage decay associated with Li-rich phases, Li-ion conductive LiZrO (LZO) is coated on LiNiMnCoO (LNMC) by a simple wet chemical process. The LZO phase coated on LNMC, with a thickness of about 10 nm, provides a structural integrity and facilitates the ion pathways throughout the charge-discharge process, which results in significant improvement of the electrochemical performances. The surface-modified cathode material exhibits a reversible capacity of 225 mA h g (at C/5 rate) and retains 85% of the initial capacity after 100 cycles.