Constructing Multi-Electron Reactions by Doping Mn to Increase Capacity and Stability in KVMn(PO)/C of Phosphate Cathodes for Potassium-Ion Batteries.

Vanadium-based phosphate cathode materials (e.g., KV(PO)) have attracted widespread concentration in cathode materials in potassium-ion batteries owing to their stable structure but suffer from low capacity and poor conductivity.

In Situ Chemical Modulation of Graphitization Degree of Carbon Fibers and Its Potassium Storage Mechanism.

Graphite is considered to be the most auspicious anode candidate for potassium ion batteries. However, the inferior rate performances and cycling stability restrict its practical applications. Few studies have investigated the modulating the graphitization degree of graphitic materials.

Peapod-Like Structured B/N Co-Doped Carbon Nanotube Array Encapsulating MP (M = Fe, Co, and Ni) Nanoparticles for High-Rate Potassium Storage.

Potassium-ion batteries (PIBs) have become the desirable alternatives for lithium-ion batteries (LIBs) originating from abundant reserves and appropriate redox potential, while the considerable radius size of K leading to poor reaction kinetics and huge volume expansion limits the practical application of PIBs. Hybridization of transition-metal phosphides and carbon substrates can effectively optimize the obstacles of poor conductivity, sluggish kinetics, and huge volume variation. Thus, the peapod-like structural MP@BNCNTs (M = Fe, Co, and Ni) composites as anode materials for PIBs were synthesized through a facile strategy.

Reducing graphene oxide carbon skeleton supported P-N heterostructure of bimetallic sulfide CoS-MoS nanorods for high-performance lithium storage.

Constructing bimetallic sulfide components are considered to be a promising and efficient lithium storage materials. Nonetheless, preparation routes of rational structures that have abundant hierarchical interfaces or phase boundaries bimetallic sulfide are still a problem to over come. In this work, a novel hierarchical nanostructure of bimetal sulfide CoS-MoS nanorods are synthesized successfully by in-situ self-growth means at the hydrothermal conditions.

A multilayered sturdy shell protects silicon nanoparticle Si@void C@TiO as an advanced lithium ion battery anode.

Nowadays with the increasing demand for lithium-ion batteries (LIBs), the high-capacity silicon anode is becoming a promising electrode material. However, the huge expansion of silicon during long cycling remains a significant challenge. Herein, a functional double layer Si-based multi-component structure Si@void C@TiO2 was designed as anode material for lithium-ion batteries.