Achieving Higher Critical Current Density in LGPS-Based Lithium Metal Batteries via a Synergistic Interlayer for Physical Inhibition and Chemical Scavenging of Lithium Dendrites.

LiGePS (LGPS) electrolyte has garnered attention due to its high ionic conductivity and processability. However, its strong incompatibility with lithium metal hinders its practical application. Conventional interlayer strategy isolates Li from LGPS, avoiding the detrimental side reactions, but lithium dendrite penetration is still a problem.

Electrolyte Additive l-Lysine Stabilizes the Zinc Electrode in Aqueous Zinc Batteries for Long Cycling Performance.

Rechargeable aqueous Zn-ion batteries (AZIBs) have been recognized as competitive devices for large-scale energy storage due to their characteristics of low cost, safe operation, and environmental friendliness. Nevertheless, their practical applications are greatly limited by zinc dendrite growth and side reactions occurring at the anode/electrolyte interface. Herein, we propose an effective and simple electrolyte engineering strategy, which is the introduction of l-lysine additive containing two amino groups and one carboxyl group into a ZnSO electrolyte to achieve stable and reversible Zn depositions.

Promoted Stability and Reaction Kinetics in Ni-Rich Cathodes via Mechanical Fusing Multifunctional LiZr(PO) Nanocrystals for High Mass Loading All-Solid-State Lithium Batteries.

Sulfide all-solid-state lithium battery (ASSLB) with nickel-rich layered oxide as the cathode is promising for next-generation energy storage system. However, the Li transport dynamic and stability in ASSLB are hindered by the structural mismatches and the instabilities especially at the oxide cathode/sulfide solid electrolyte (SE) interface. In this work, we have demonstrated a simple and highly effective solid-state mechanofusion method (1500 rpm for 10 min) to combine lithium conductive NASICON-type LiZr(PO) nanocrystals (∼20 nm) uniformly and compactly onto the surface of the single crystallized LiNiCoMnO, which can also attractively achieve Zr doping in NCM811 and oxygen vacancies in the LZPO coating without solvent and annealing.

Anion-Dominated Solvation in Low-Concentration Electrolytes Promotes Inorganic-Rich Interphase Formation in Lithium Metal Batteries.

While the formation of an inorganic-rich solid electrolyte interphase (SEI) plays a crucial role, the persistent challenge lies in the formation of an organic-rich SEI due to the high solvent ratio in low-concentration electrolytes (LCEs), which hinders the achievement of high-performance lithium metal batteries. Herein, by incorporating di-fluoroethylene carbonate (DFEC) as a non-solvating cosolvent, a solvation structure dominated by anions is introduced in the innovative LCE, leading to the creation of a durable and stable inorganic-rich SEI. Leveraging this electrolyte design, the Li||NCM83 cell demonstrates exceptional cycling stability, maintaining 82.

A Gel Polymer Electrolyte with High Uniform Na Flux and its Constructed Hybrid Interface Synergistically to Facilitate High-Performance Sodium Batteries.

Sodium metal batteries (SMBs) can be developed on a large scale to achieve low-cost and high-capacity energy storage systems. Gel polymer electrolyte (GPE) can relieve volatilization of liquid electrolyte, adapt to volume changes in electrodes, and better satisfy the requirements of long-term SMBs. Herein, a dense polyurethane-based GPE modified with polyacrylonitrile is synthesized by rapidly swelling two-component polyurethane/polyacrylonitrile electrospun fiber film.

Surface Gradient Ni-Rich Cathode for Li-Ion Batteries.

Nickel-rich layered oxide cathode material LiNiCoMnO (NCM) has emerged as a promising candidate for next-generation lithium-ion batteries (LIBs). These cathode materials possess high theoretical specific capacity, fast electron/ion transfer rate, and high output voltage. However, their potential is impeded by interface instability, irreversible phase transition, and the resultant significant capacity loss, limiting their practical application in LIBs.

Crown Ether Electrolyte Induced LiO Amorphization for Low Polarization and Long Lifespan Li-O Batteries.

Lithium-oxygen batteries possess an extremely high theoretical energy density, rendering them a prime candidate for next-generation secondary batteries. However, they still face multiple problems such as huge charge polarization and poor life, which lay a significant gap between laboratory research and commercial applications. In this work, we adopt 15-crown-5 ether (C15) as solvent to regulate the generation of discharge products in lithium-oxygen batteries.

Effect of NiO Addition on the Sintering and Electrochemical Properties of BaCeZrYO Proton-Conducting Ceramic Electrolyte.

Proton ceramic fuel cells offer numerous advantages compared with conventional fuel cells. However, the practical implementation of these cells is hindered by the poor sintering activity of the electrolyte. Despite extensive research efforts to improve the sintering activity of BCZY, the systematic exploration of the utilization of NiO as a sintering additive remains insufficient.

Two-Dimensional Sulfonate-Functionalized Metal-Organic Framework Membranes for Efficient Lithium-Ion Sieving.

Two-dimensional (2D) membranes have shown promising potential for ion-selective separation but often suffer from the trade-off between permeability and selectivity. Herein, we report an ultrathin 2D sulfonate-functionalized metal-organic framework (MOF) membrane for efficient lithium-ion sieving. The narrow pores with angstrom precision in the MOF assist hydrated ions to partially remove the hydration shell, according to different hydration energies.

Interface Ionic/Electronic Redistribution Driven by Conversion-Alloy Reaction for High-Performance Solid-State Sodium Batteries.

NASICON-type Na conductors show a great potential to realize high performance and safety for solid-state sodium metal batteries (SSSMBs) owing to their superior ionic conductivity, high chemical stability, and low cost. However, the interfacial incompatibility and sodium dendrite hazards still hinder its applications. Herein, a conversion-alloy reaction-induced interface ionic/electronic redistribution strategy, constructing a gradient sodiophilic and electron-blocking interphase consisting of sodium-tin (Na-Sn) alloy and sodium fluoride (NaF) between NASICON ceramic electrolyte and Na anode is proposed.

Electrolyte Design for Lithium-Ion Batteries for Extreme Temperature Applications.

With increasing energy storage demands across various applications, reliable batteries capable of performing in harsh environments, such as extreme temperatures, are crucial. However, current lithium-ion batteries (LIBs) exhibit limitations in both low and high-temperature performance, restricting their use in critical fields like defense, military, and aerospace. These challenges stem from the narrow operational temperature range and safety concerns of existing electrolyte systems.

Highly Stable Protonic Ceramic Electrolysis Cells Based on Air Electrodes with Finger-Like Pores Current Collection Layers Running in High-Steam-Content Air.

The steam content in the air electrode is one of the major factors determining the efficiency and stability of protonic ceramic electrolysis cells (PCECs). In this work, the LaSrCoFeO (LSCF) current collection layer (CCL) film with unique finger-like pores was successfully prepared by the phase-inversion tape-casting technique (PT), which promoted the gas diffusion inside the electrode and effectively improved the stability of the single cell in high-humidity air. A screen-printed LSCF-BaCeZrYYbO catalytic active layer (CAL) was also applied to match the thermal expansion coefficient (TEC) values and improve the interface combination.

Long-Lifespan Lithium Metal Batteries Enabled by a Hybrid Artificial Solid Electrolyte Interface Layer.

Lithium metal batteries based on metallic Li anodes have been recognized as competitive substitutes for current energy storage technologies due to their exceptional advantage in energy density. Nevertheless, their practical applications are greatly hindered by the safety concerns caused by lithium dendrites. Herein, we fabricate an artificial solid electrolyte interface (SEI) via a simple replacement reaction for the lithium anode (designated as LNA-Li) and demonstrate its effectiveness in suppressing the formation of lithium dendrites.

Structural design enabled a hypotoxic NaFeV(PO) cathode with ultra-fast and ultra-long sodium storage.

Among various cathode materials for sodium-ion batteries, NaV(PO) has attracted much attention due to its outstanding electrochemical performance. However, the toxicity and expensive price of vanadium limit its practical application. Therefore, the substitution of vanadium with nontoxic and inexpensive transition metal elements is significant.

Grain Boundary Engineering Enabled High-Performance Garnet-Type Electrolyte for Lithium Dendrite Free Lithium Metal Batteries.

Solid-state lithium metal batteries (SSLMBs) are attracting increasing attentions as one of the promising next-generation technologies due to their high-safety and high-energy density. Their practical application, however, is hindered by lithium dendrite growth and propagation in solid-state electrolytes (SSEs). Herein, an in situ grain boundary modification strategy relying on the reaction between Li TiO (LTO) and Ta-substituted garnet-type electrolyte (LLZT) is developed, which forms LaTiO along with lesser amounts of LTO/Li ZrO at the grain boundaries (GBs).

VN and SeS embedded porous carbon-nanofiber film as a free-standing electrode for improved Li-SeS batteries.

We design a vanadium nitride (VN) modified porous carbon nanofiber film as the host to load SeS as the cathode (SeS@VN/CNFs) for improving Li storage capacity. The conductive porous carbon nanofibers can accommodate active SeS and release the volume change. The introduced VN nanoparticles can chemically anchor the intermediate species and improve the utilization of SeS.

Active-Site-Specific Structural Engineering Enabled Ultrahigh Rate Performance of the NaLiFe(PO)(PO) Cathode for Lithium-Ion Batteries.

Iron-based mixed-polyanionic cathode NaFe(PO)(PO) (NFPP) has advantages of environmental benignity, easy synthesis, high theoretical capacity, and remarkable stability. From NFPP, a novel Li-replaced material NaLiFe(PO)(PO) (NLFPP) is synthesized through active Na-site structural engineering by an electrochemical ion exchange approach. The NLFPP cathode can show high reversible capacities of 103.

Double-Faced Bond Coupling to Induce an Ultrastable Lithium/LiPSCl Interface for High-Performance All-Solid-State Batteries.

Sulfide-type solid electrolytes (SSEs) are supposed to be preferential candidates for all-solid-state Li metal batteries (ASSLMBs) due to their satisfactory Li conductivity and preferable mechanical stiffness. Nonetheless, the poor stability between the Li anode and SSEs and uncontrolled Li dendrite growth severely restrict their commercial application. Herein, an amphiphilic LiSiO-enriched solid electrolyte interphase (SEI) as a "Janus" layer was first introduced at the Li/SSEs interface, and it exhibited bond coupling reactivity with both the Li anode and SSEs by forming Li-S, Li-O-Si, and Si-S covalent bonds, which is called the pincer effect.

Synthesis and properties of poly(1,3-dioxolane) quasi-solid-state electrolytes a rare-earth triflate catalyst.

We report a rare-earth triflate catalyst Sc(OTf)3 for the ring-opening polymerization of 1,3-dioxolane and the in situ production of a quasi-solid-state poly(1,3-dioxolane) electrolyte, which not only demonstrates a superior ionic conductivity of 1.07 mS cm-1 at room temperature, but achieves dendrite-free lithium deposition and a high Coulombic efficiency of 92.3% over 200 Li plating/striping cycles.

Suppressing Redox Shuttle with MXene-Modified Separators for Li-O Batteries.

Redox mediators (RMs) have been developed as efficient approaches to lower the charge polarization of Li-O batteries. However, the shuttle effect resulting from their soluble nature severely damages the battery performance, causing failure of the RM and anode corrosion. In this work, a chemical binding strategy based on a MXene-modified separator with a 3D porous hierarchical structure design was developed to suppress the I shutting in LiI-involved Li-O battery.

Hollow-Sphere-Structured NaFe(PO)(PO)/C as a Cathode Material for Sodium-Ion Batteries.

The mixed polyanionic material NaFe(PO)(PO) combines the advantages of NaFePO and NaFePO in capacity, stability, and cost. Herein, we synthesized carbon-coated hollow-sphere-structured NaFe(PO)(PO) powders by a scalable spray drying route. The optimal sample can deliver a high discharge capacity of 107.

A facile method for the synthesis of a sintering dense nano-grained NaZrSiPO Na-ion solid-state electrolyte.

We report dense Na3Zr2Si2PO12 with an average grain size of 546 ± 58 nm and prepared by a facile method. The nano-grained Na3Zr2Si2PO12 exhibits an extremely high conductivity of 1.02 × 10-3 S cm-1 and low interfacial resistance of 35 Ω cm2 at 25 °C.

Cobalt Phosphide Nanoflake-Induced Flower-like Sulfur for High Redox Kinetics and Fast Ion Transfer in Lithium-Sulfur Batteries.

Sulfur reactivity in lithium-sulfur batteries highly depends on its distribution and morphology during cycling, which is of great significance to suppress the shuttle effect and promote conversion reaction. Herein, cobalt phosphide nanoflakes are prepared and used as a sulfur host. An improved redox kinetics from sulfur to lithium sulfide and the corresponding fast lithium-ion diffusion are observed to greatly promote the electrochemical performance of lithium-sulfur batteries.

Introducing a cell moisturizer: organogel nano-beads with rapid response to electrolytes for Prussian white analogue based non-aqueous potassium ion battery.

Prussian white analogue nanoparticles were connected internally by a composite consisting of poly(butyl methacrylate) (PBMA) nano-gel and a conducting polymer layer via a one-step route. The powder falling problems have been mitigated by the intrinsic good binding strength of PBMA organogel; meanwhile, the conducting polymer provides extra transfer paths for electrons.

Introducing a conductive pillar: a polyaniline intercalated layered titanate for high-rate and ultra-stable sodium and potassium ion storage.

A novel electrode material, TiO2-coated polyaniline intercalated layered titanate, is synthesized. Polyaniline is tri-functional: stabilizing the layered titanate structure, enlarging the interlayer spacing and enhancing the electronic conductivity. Such a composite can deliver high capacities of 258 and 219 mA h g-1 in sodium and potassium-ion batteries, respectively.