Development of an eco-friendly, low cost and high energy density LiMnPO4 cathode material has attracted much attention due to its high operating voltage vs. Li falling within the electrochemical stability window of conventional electrolyte solutions and offers more safety features due to the presence of a strong P-O covalent bond.Synthesis of battery materials integrates the...

We study the Li clustering process on graphene and obtain the geometry, nucleation barrier, and electronic structure of the clusters using first-principles calculations. We estimate the concentration-dependent nucleation barrier for Li on graphene. While the nucleation occurs more readily with increasing Li concentration, possibly leading to the dendrite formation and failure of the Li-ion batt...

We fabricated a hybrid energy cell that consists of a triboelectric nanogenerator, a thermoelectric cell, and a solar cell, which can be used to simultaneously or individually harvest the mechanical, thermal, and solar energies. Instead of using an external power source, the hybrid energy cell can be directly used for self-powered water splitting to generate hydrogen. The volume of the produced...

Front cover image: Lithium sulfide (Li2S)-based Li-S battery is a promising candidate for next-generation batteries. However, the insulating Li2S requires high overpotential its first activation and so far, therefore, it rarely reported to achieve long-life batteries in loading. In article number cey2.308, Kim et al. propose high-loading, energy, cathode featuring three-dimensional (3D) uniform...

1 Energy storage is an essential element of the complete landscape of energy processes, closely coupled with energy generation, transmission and usage. Development of lithium-based rechargeable batteries with higher energy density, lower costs and improved safety is highly desirable1–3. Over the past 25 years, lithiumion batteries based on conventional intercalation electrode materials have pla...

Abstract Lithium–sulfur (Li–S) batteries have been considered as promising battery systems due to their huge advantages on theoretical energy density and rich resources. However, the shuttle effect sluggish transformation of soluble lithium polysulfides (LiPSs) hinder practical application Li–S batteries. Tremendous sulfur host materials with unique catalytic activity exploited inhibit accelera...

The lithium-sulfur (Li-S) battery promises with its high theoretical capacity (1675 mA h) and energy density (2600 Wh kg) to be one of the energy storage systems of the future. However, the electrochemical processes and degradation mechanisms of the cells need further investigation to improve their capacity and safety. In this work, in-situ characterization methods were applied for the characte...

Lithium-sulfur (Li-S) batteries have become promising candidates for electrical energy storage systems due to their high theoretical specific energy density, low cost and environmental friendliness. However, there are some technical obstacles of lithium-sulfur batteries to be addressed, such as the shuttle effect of polysulfides. Here, we introduced organically modified carbon nanotubes (CNTs) ...