Potassium-ion batteries (PIBs) have attracted increasing research interest because of the natural abundance and low cost potassium. Nevertheless, lacking suitable anode materials that can deliver high reversible capacity long cycle life highly hinder further development PIBs. Here, we report a flour chemistry strategy to establish porous phosphorus-doped carbon (PPDC) as for high-performance Th...

Abstract The development of sodium-ion (SIBs) and potassium-ion batteries (PIBs) has increased rapidly because the abundant resources cost-effectiveness Na K. Antimony (Sb) plays an important role in SIBs PIBs its high theoretical capacity, proper working voltage, low cost. However, Sb-based anodes have drawbacks large volume changes weak charge transfer during discharge processes, thus leading...

As a potential anode material for potassium-ion batteries (PIBs), bimetallic sulfides are favored by researchers their high specific capacity, low cost, and long cycle life. However, the non-ideal diffusion rate poor stability pose significant challenges in practical applications. In this work, sulfide CuSbSy@C with yolk-shell structure was synthesized situ precipitation carbonization. When CuS...

This paper proposes a method, called the policyextension-by-policy method, for quickly and dynamically adding policy classes with new functionality to policy servers and agents. In this method, users can add a new policy class to the policy server by using policy-definition (PD) policies, and they can define a method to translate a policy of the new class and to send to network nodes of differe...

The exploration of ideal electrode materials overcoming the critical problems large volume changes and sluggish redox kinetics induced by ionic radius Na+/K+ ions is highly desirable for sodium/potassium-ion batteries (SIBs/PIBs) toward large-scale applications. present work demonstrates that single-phase ternary cobalt phosphoselenide (CoPSe) in form nanoparticles embedded a layered metal–orga...

Developing electrodes with long lifespan and wide-temperature adaptability is crucial important to achieve high-performance sodium/potassium-ion batteries (SIBs/PIBs). Herein, the SnSe2-SePAN composite was fabricated for extraordinarily stable range SIBs/PIBs through a coupling strategy between controllable electrospinning selenylation, in which SnSe2 nanoparticles were uniformly encapsulated S...

Carbonaceous materials are promising anode candidates for potassium-ion batteries (PIBs) given its high conductivity, stable property, and abundant resource, while practical implementation is still hampered by limited capacity inferior rate behavior. Herein, we report a superior carbonaceous through combined strategy of carbon hybridization heteroatom doping. In this composite, hollow spindles ...

Potassium-ion batteries (PIBs) have attracted increasing interest as promising alternatives to lithium-ion (LIBs) for application in large-scale electrical energy storage systems (EESSs) owing a wide earth-abundance, potential price advantages, and low standard redox of potassium. Developmental materials use PIBs that can yield high specific capacities durability are widely sought with emerging...

Carbonaceous material with favorable K+ intercalation feature is considered as a compelling anode for potassium-ion batteries (PIBs). However, the inferior rate performance and cycling stability impede their large-scale application. Here, facile template method utilized to synthesize boron doping carbon nanobubbles (BCNBs). The incorporation of into structure introduces abundant defective sites...

Introduction: Gynecological malignancies present challenges in determining an appropriate volumetric dose due to the highly variable physiologic activity of the surrounding tissue. Because of the high doses used in brachytherapy, surrounding structures have the potential to move around in the dose region and receive unknown amounts of radiation. Calculating hotspot region from ...