Abstract Owing to high specific energy, low cost, and environmental friendliness, lithium–sulfur (Li–S) batteries hold great promise meet the increasing demand for advanced energy storage beyond portable electronics, mitigate problems. However, application of Li–S is challenged by several obstacles, including their short life sulfur utilization, which become more serious when loading increased practically accepted level above 3–5 mg cm −2 . More efforts have been made recently overcome...

Lithium (Li) metal has been considered as an important substitute for the graphite anode to further boost energy density of Li‐ion batteries. However, Li dendrite growth during plating/stripping causes safety concern and poor lifespan batteries (LMB). Herein, fluoroethylene carbonate (FEC) additives are used form a LiF‐rich solid electrolyte interphase (SEI). The FEC‐induced SEI layer is compact stable, thus beneficial obtain uniform morphology deposits. This dendrite‐free renders...

Lithium–sulfur (Li–S) battery system is endowed with tremendous energy density, resulting from the complex sulfur electrochemistry involving multielectron redox reactions and phase transformations. Originated slow kinetics of polysulfide intermediates, flood polysulfides in batteries during cycling induced low utilization, severe polarization, efficiency, deteriorated shuttle, short life. Herein, sulfiphilic cobalt disulfide (CoS2) was incorporated into carbon/sulfur cathodes, introducing...

Abstract Lithium (Li) metal is the most promising electrode for next‐generation rechargeable batteries. However, challenges induced by Li dendrites on a working anode hinder practical applications of Herein, nitrogen (N) doped graphene was adopted as plating matrix to regulate nucleation and suppress dendrite growth. The N‐containing functional groups, such pyridinic pyrrolic in N‐doped graphene, are lithiophilic, which guide metallic causing distribute uniformly surface. As result, modified...

Li dendrite-free growth is achieved by employing glass fiber with large polar functional groups as the interlayer of metal anode and separator to uniformly distribute ions. The evenly distributed ions render deposits at high rates (10 mA cm−2) lithiation capacity (2.0 mAh cm−2). As a service our authors readers, this journal provides supporting information supplied authors. Such materials are peer reviewed may be re-organized for online delivery, but not copy-edited or typeset. Technical...

Significance The Li metal electrode is regarded as a “Holy Grail” anode for next-generation batteries due to its extremely high theoretical capacity and lowest reduction potential. Unfortunately, uncontrolled dendrite growth leads serious safety issues. This work realizes dendrite-free by introducing an anion-immobilized composite solid electrolyte, where anions are tethered polymer chains ceramic particles. Immobilized contribute uniform distribution of ions deposition. flexible electrolyte...

Abstract Safe and rechargeable lithium metal batteries have been difficult to achieve because of the formation dendrites. Herein an emerging electrolyte based on a simple solvation strategy is proposed for highly stable anodes in both coin pouch cells. Fluoroethylene carbonate (FEC) nitrate (LiNO 3 ) were concurrently introduced into electrolyte, thus altering sheath ions, forming uniform solid interphase (SEI), with abundance LiF LiN x O y working anode dendrite‐free deposition. Ultrahigh...

A nanostructured lithium-metal anode employing an unstacked graphene "drum" and dual-salt electrolyte brings about a dendrite-free lithium depositing morphology. On the one hand, framework with ultrahigh specific surface area guarantees ultralow local current density that prevents growth of dendrites. other stable, flexible, compact solid interphase layer induced by protects deposited layers.

Abstract Lithium (Li) metal has been pursued as “Holy Grail” among various anode materials due to its high specific capacity and the lowest reduction potential. However, uncontrolled growth of Li dendrites extremely unstable interfaces during repeated plating/stripping ineluctably plague practical applications batteries. Herein, an artificial protective layer with synergistic soft–rigid feature is constructed on offer superior interfacial stability long‐term cycles. By suppressing random...

The stability of a battery is strongly dependent on the feature solid electrolyte interphase (SEI). electrical double layer forms prior to formation SEI at interface between Li metal anode and electrolyte. fundamental understanding regulation structure surface through highly necessary for safe batteries. Herein, interfacial chemistry correlated with initial adsorption nanoscale theoretical experimental analysis. Under premise constant solvation sheath Li+ in bulk electrolyte, trace amount...

Nitrogen-doped aligned CNT/graphene sandwiches are rationally designed and in-situ fabricated by a facile catalytic growth on bifunctional natural catalysts that exhibit high-rate performances as scaffolds for lithium–sulfur batteries, with high initial capacity of 1152 mAh g-1 at 1.0 C. A remarkable 770 mA h can be achieved 5.0 Such design strategy materials opens up new perspectives to novel advanced functional composites, especially interface-modified hierarchical nanocarbons broad applications.

A cooperative interface constructed by "lithiophilic" nitrogen-doped graphene frameworks and "sulfiphilic" nickel-iron layered double hydroxides (LDH@NG) is proposed to synergistically afford bifunctional Li S binding polysulfides, suppression of polysulfide shuttles, electrocatalytic activity toward formation lithium sulfides for high-performance lithium-sulfur batteries. LDH@NG enables high rate capability, long lifespan, efficient stabilization both sulfur electrodes.

The uncontrollable growth of lithium (Li) dendrites seriously impedes practical applications Li metal batteries. Various lithiophilic conductive frameworks, especially carbon hosts, are used to guide uniform nucleation and thus deliver a dendrite-free composite anode. However, the nature these hosts is poorly understood. Herein, lithiophilicity chemistry heteroatom-doped investigated through both first principles calculations experimental verifications nucleation. electronegativity, local...

The lithium metal anode is regarded as a promising candidate in next-generation energy storage devices. Lithium nitrate (LiNO3 ) widely applied an effective additive ether electrolyte to increase the interfacial stability batteries containing anodes. However, because of its poor solubility LiNO3 rarely utilized high-voltage window provided by carbonate electrolyte. Dissolution realized through solvation regulation strategy. can be directly dissolved ethylene carbonate/diethyl mixture adding...

The sp 2 ‐hybridized nanocarbon (e.g., carbon nanotubes (CNTs) and graphene) exhibits extraordinary mechanical strength electrical conductivity but limited external accessible surface area a small amount of pores, while nanostructured porous affords huge abundant pore structures very poor conductance. Herein the rational hybridization into hierarchical all‐carbon nanoarchitectures is demonstrated, with full inherited advantages component materials. graphene/CNT interlinked networks give...

The rational combination of conductive nanocarbon with sulfur leads to the formation composite cathodes that can take full advantage each building block; this is an effective way construct cathode materials for lithium–sulfur (Li–S) batteries high energy density. Generally, areal sulfur‐loading amount less than 2.0 mg cm −2 , resulting in a low capacity far below acceptable value practical applications. In contribution, hierarchical free‐standing carbon nanotube (CNT)‐S paper electrode...

Lithium metal batteries (such as lithium-sulfur, lithium-air, solid state with lithium anode) are highly considered promising candidates for next-generation energy storage systems. However, the unstable interfaces between anode and electrolyte definitely induce undesired uncontrollable growth of dendrites, which results in short-circuit thermal runaway rechargeable batteries. Herein, a dual-layered film is built on Li by immersion plates into fluoroethylene carbonate solvent. The ionic...