Rational Design of a Cross-Linked Composite Solid Electrolyte for Li-Metal Batteries.

The interfacial problem caused by solid-solid contact is an important issue faced by a solid-state electrolyte (SSE). Herein, a cross-linked composite solid electrolyte (CSE) poly(vinylene carbonate) (PVCA)─ethoxylated trimethylolpropane triacrylate (ETPTA)─LiAlGe(PO) (LAGP) (PEL) is prepared by in situ thermal polymerization. The ionic conductivity and Li transference number () of PEL increase significantly due to the addition of LAGP, which can reach 1.

Double-Protected Layers with Solid-Liquid Hybrid Electrolytes for Long-Cycle-Life Lithium Batteries.

Lithium-ion batteries (LIBs) with liquid electrolytes (LEs) have problems such as electrolyte leakage, low safety profiles, and low energy density, which limit their further development. However, LIBs with solid electrolytes are safer with better energy and high-temperature performance. Thus, solid electrolyte system batteries have attracted widespread attention.

Zirconium-Redox-Shuttled Cross-Electrophile Coupling of Aromatic and Heteroaromatic Halides.

Transition metal-catalyzed cross-electrophile coupling (XEC) is a powerful tool for forging C(sp)-C(sp) bonds in biaryl molecules from abundant aromatic halides. While syntheses of unsymmetrical biaryl compounds through multimetallic XEC is of high synthetic value, selective XEC of two heteroaromatic halides remains elusive and challenging. Herein we report a homogeneous XEC method which relies on a zirconaaziridine complex as a shuttle for dual palladium catalyzed processes.

Effect of Organic Electrolyte on the Performance of Solid Electrolyte for Solid-Liquid Hybrid Lithium Batteries.

The interface problem caused by the contact between the electrodes and the solid electrolyte was the main factor hindering the development of solid-state batteries. To enhance the electrode|solid electrolyte interface property, we designed a hybrid electrolyte, the combination of vol % LiAlTi(PO) (LATP) inorganic solid electrolyte and 1 - vol % liquid organic electrolyte (LE). In this work, the 1 - vol % LE was dropped between the electrode and the solid electrolyte, and it is found that the electrochemical performance of the LiFePO|Li solid-liquid hybrid battery is significantly improved.

LiFePO-coated LiNiCoMnO for lithium-ion batteries with enhanced cycling performance at elevated temperatures and high voltages.

LiNiCoMnO (NCM622) is a highly promising cathode material owing to its high capacity; however, it is characterized by inferior cycling performance and safety problems. We report a novel strategy to improve electrochemical characteristics and safety issues of NCM622 by coating it with LiFePO (LFP). Although having a lower capacity, LFP is a safe and long-cycle cathode material; it is more chemically and thermally stable than NCM622 when exposed to common electrolytes.

CeO-modified P2-Na-Co-Mn-O cathode with enhanced sodium storage characteristics.

To improve the cycling stability and dynamic properties of layered oxide cathodes for sodium-ion batteries, surface modified P2-NaCoMnO with different levels of CeO was successfully synthesized by the solid-state method. X-ray photoelectron spectra, X-ray diffraction and Raman spectra show that the P2-structure and the oxidation state of cobalt and manganese of the pristine oxide are not affected by CeO surface modification, and a small amount of Ce ions have been reduced to Ce ions, and a few Ce ions have entered the crystal lattice of the P2-oxide surface during modification with CeO. In a voltage range of 2.

Hydrophobicity-guided self-assembled particles of silver nanoclusters with aggregation-induced emission and their use in sensing and bioimaging.

Distinctive aggregation-induced emission (AIE) phenomenon of thiolate-protected silver nanoclusters (AgNCs) has been revealed; these AgNCs have shown great potential for exploitation and utilization, but their applications as a bright luminogen in the chemosensing and bioimaging areas are greatly limited by their ultralow brightness in an aqueous solution. Herein, we report facile fabrication of hydrophobicity-guided self-assembled particles of silver nanoclusters with aggregation-induced emission. A hydrophobic ligand, thiosalicylic acid, was adopted to prepare AgNCs via a one-step way, and thiosalicylic acid-capped AgNCs showed significant AIE behavior.